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Patent #:
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Issue Dt:
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08/07/1984
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Application #:
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06299663
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Filing Dt:
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09/08/1981
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Title:
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SYSTEM FOR GENERATION OF MULTIPLE POINTED QAM SIGNAL SPACES BY USE OF SYNCHRONOUS QAM TRANSMITTERS
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Patent #:
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Issue Dt:
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03/20/1984
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Application #:
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06306543
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Filing Dt:
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09/28/1981
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Title:
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RACK MOUNTABLE PRIMARY POWER AC PLUG
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Patent #:
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Issue Dt:
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03/05/1985
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Application #:
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06316098
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Filing Dt:
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10/28/1981
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Title:
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SYSTEM FOR EVALUATING TRANSMISSION LINE IMPARIMENTS
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Patent #:
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Issue Dt:
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02/28/1984
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Application #:
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06318742
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Filing Dt:
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11/06/1981
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Title:
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D.C. POWER MONITOR
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Patent #:
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Issue Dt:
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05/07/1985
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Application #:
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06376741
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Filing Dt:
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05/10/1982
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Title:
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IN-SERVICE MONITORING SYSTEM FOR DATA COMMUNICATIONS NETWORK
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Patent #:
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Issue Dt:
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07/30/1985
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Application #:
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06407451
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Filing Dt:
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08/12/1982
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Title:
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PHASE TRACKING LOOP FOR DIGITAL MODEM
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Patent #:
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Issue Dt:
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06/25/1985
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Application #:
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06440500
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Filing Dt:
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11/10/1982
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Title:
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OAM ENCODER
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Patent #:
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Issue Dt:
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12/10/1985
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Application #:
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06442317
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Filing Dt:
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11/17/1982
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Title:
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DIGITAL COMMUNICATION LINK MONITORING DEVICE
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Patent #:
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Issue Dt:
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04/02/1985
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Application #:
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06447988
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Filing Dt:
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12/08/1982
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Title:
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MODEM MULTIPLEXER SYNCHRONIZATION BY RADIAL MODULATION
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Patent #:
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Issue Dt:
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08/06/1985
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Application #:
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06447989
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Filing Dt:
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12/08/1982
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Title:
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PHASE TRACKING LOOP IMPAIRMENT MONITOR FOR MODEMS
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Patent #:
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Issue Dt:
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06/25/1985
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Application #:
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06453165
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Filing Dt:
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12/27/1982
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Title:
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MODEM IN-BAND SECONDARY CHANNEL VIA RADIAL MODULATION
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Patent #:
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Issue Dt:
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09/16/1986
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Application #:
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06457521
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Filing Dt:
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01/13/1983
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Title:
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FREQUENCY SHIFT KEYED DEMODULATOR
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Patent #:
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Issue Dt:
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05/14/1985
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Application #:
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06468954
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Filing Dt:
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02/23/1983
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Title:
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ERROR VECTOR NORMALIZER
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Patent #:
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Issue Dt:
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11/26/1985
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Application #:
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06509716
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Filing Dt:
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06/30/1983
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Title:
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DIGITAL MODEM HAVING A MONITOR FOR SIGNAL-TO-NOISE RATIO
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Patent #:
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Issue Dt:
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08/06/1985
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Application #:
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06558610
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Filing Dt:
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12/06/1983
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Title:
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NORMALIZED ERROR COMPENSATOR FOR MODEMS USING RADIAL AMPLITUDE MODULATION FOR MULTIPLEXING
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Patent #:
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Issue Dt:
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03/31/1987
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Application #:
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06558611
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Filing Dt:
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12/06/1983
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Title:
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METHOD OF MEASURING COMMUNICATION CHANNEL IMPAIREMENT IN POLLING APPLICATIONS
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Patent #:
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Issue Dt:
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01/13/1987
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Application #:
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06580672
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Filing Dt:
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02/16/1984
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Title:
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DIGITAL MODEM FOR MULTIPLE TELEPHONE CIRCUITS
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Patent #:
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Issue Dt:
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08/13/1985
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Application #:
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06582785
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Filing Dt:
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02/29/1984
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Title:
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MULTI-MODEM VARIABLE PORT DEMULTIPLEXER SYNCHRONIZATION ADAPTER
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Patent #:
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Issue Dt:
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03/29/1988
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Application #:
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06659287
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Filing Dt:
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10/10/1984
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Title:
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HIGH SPEED MODEM FOR MULTIPLE COMMUNICATION CIRCUITS
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Patent #:
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Issue Dt:
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05/05/1987
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Application #:
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06659288
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Filing Dt:
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10/10/1984
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Title:
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METHOD OF DETERMINING AUTOMATICALLY THE RATE OF DATA SIGNALS IN A MODEM
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Patent #:
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Issue Dt:
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12/16/1986
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Application #:
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06659289
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Filing Dt:
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10/10/1984
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Title:
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DEVICE FOR SYNCHRONIZATION OF MULTIPLE TELEPHONE CIRCUITS
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Patent #:
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Issue Dt:
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12/02/1986
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Application #:
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06677509
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Filing Dt:
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12/03/1984
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Title:
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MODIFIED QAM DATA POINT CONSTELLATION FOR SECONDARY CHANNEL SIGNALLING
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Patent #:
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Issue Dt:
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06/30/1987
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Application #:
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06707083
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Filing Dt:
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03/01/1985
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Title:
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SELF-SYNCHRONIZING DE-INTERLEAVER FOR VITERBI DECODER USED IN WIRELINE MODEMS
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Patent #:
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Issue Dt:
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06/30/1987
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Application #:
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06707084
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Filing Dt:
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03/01/1985
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Title:
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DISTRIBUTED TRELLIS ENCODER
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Patent #:
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Issue Dt:
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06/30/1987
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Application #:
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06707085
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Filing Dt:
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03/01/1985
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Title:
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SELF-SYNCHRONIZING INTERLEAVER FOR TRELLIS ENCODER USED IN WIRELINE MODEMS
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Patent #:
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Issue Dt:
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12/30/1986
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Application #:
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06709562
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Filing Dt:
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03/08/1985
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Title:
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ADAPTIVE NOISE SUPPRESSION FOR DIGITAL MODEMS
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Patent #:
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Issue Dt:
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11/24/1987
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Application #:
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06710978
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Filing Dt:
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03/13/1985
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Title:
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VITERBI DECODER FOR WIRELINE MODEMS
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Patent #:
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Issue Dt:
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01/27/1987
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Application #:
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06722295
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Filing Dt:
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04/11/1985
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Title:
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LINE IMPAIRMENT DISPLAY FOR DIGITAL MODEMS
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Patent #:
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Issue Dt:
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02/24/1987
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Application #:
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06745849
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Filing Dt:
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06/17/1985
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Title:
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NON-INTERFERING IN-BAND PROTOCOL-INDEPENDENT DIAGNOSTIC SCANNING IN A DIGITAL MULTIPOINT COMMUNICATION SYSTEM
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Patent #:
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Issue Dt:
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12/16/1986
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Application #:
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06748748
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Filing Dt:
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06/25/1985
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Title:
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SECONDARY CHANNEL SIGNALLING IN A QAM DATA POINT CONSTELLATION
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Patent #:
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Issue Dt:
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07/28/1987
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Application #:
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06752398
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Filing Dt:
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07/05/1985
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Title:
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AUTOMATIC GAIN CONTROL USING THE EXTREME POINTS OF A CONSTELLATION
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Patent #:
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Issue Dt:
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05/10/1988
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Application #:
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06752401
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Filing Dt:
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07/05/1985
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Title:
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TRANSPARENT ERROR DETECTION IN HALF DUPLEX MODEMS
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Patent #:
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Issue Dt:
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05/26/1987
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Application #:
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06752402
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Filing Dt:
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07/05/1985
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Title:
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HALF-DUPLEX MODEM WITHOUT TURNAROUND DELAY
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Patent #:
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Issue Dt:
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02/06/1990
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Application #:
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06760485
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Filing Dt:
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07/30/1985
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Title:
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HYBRID INTERFACE ADAPTER
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Patent #:
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Issue Dt:
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01/10/1989
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Application #:
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06800995
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Filing Dt:
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11/22/1985
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Title:
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INTERLEAVED SYNCHRONOUS BUS ACCESS PROTOCOL FOR A SHARED MEMORY MULTI-PROCESSOR SYSTEM
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Patent #:
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Issue Dt:
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03/15/1988
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Application #:
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06814677
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Filing Dt:
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12/30/1985
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Title:
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METHOD AND DEVICE OF INCREASING THE EXECUTION SPEED OF CIPHER FEEDBACK MODE OF THE DES BY AN ARBITRARY MULTIPLIER
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Patent #:
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Issue Dt:
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03/21/1989
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Application #:
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07035608
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Filing Dt:
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04/07/1987
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Title:
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SELECTIVE SIGNALLING ENCODER/DECODER FOR MULTIPOINT DATA COMMUNICATION NETWORKS
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Patent #:
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Issue Dt:
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01/03/1989
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Application #:
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07068733
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Filing Dt:
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06/30/1987
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Title:
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SUBRATE PREAMBLE DECODER FOR A HIGH SPEED MODEM
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Patent #:
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Issue Dt:
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09/05/1989
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Application #:
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07073464
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Filing Dt:
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07/15/1987
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Title:
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SYSTEM AND METHOD FOR REDUCING DEADLOCK CONDITIONS CAUSED BY REPEATED TRANSMISSION OF DATA SEQUENCES EQUIVALENT TO THOSE USED FOR INTER- DEVICE SIGNALLING
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Patent #:
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Issue Dt:
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06/21/1988
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Application #:
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07083654
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Filing Dt:
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08/07/1987
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Title:
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FREQUENCY OF OCCURRENCE RETRAINING DECISION CIRCUIT
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Patent #:
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Issue Dt:
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07/03/1990
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Application #:
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07083696
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Filing Dt:
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08/07/1987
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Title:
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UNOBTRUSIVE SIGNATURE FOR MODULATED SIGNALS
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Patent #:
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Issue Dt:
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05/23/1989
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Application #:
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07086516
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Filing Dt:
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08/18/1987
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Title:
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REMOTE EYE PATTERN DISPLAY FOR DIGITAL MODEMS
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Patent #:
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Issue Dt:
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01/10/1989
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Application #:
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07086518
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Filing Dt:
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08/18/1987
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Title:
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MULTIPLE VIRTUAL MULTIPOINT MODEM USING TDM/TOKEN THROWING TECHNIQUE
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Patent #:
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Issue Dt:
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08/29/1989
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Application #:
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07139449
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Filing Dt:
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12/30/1987
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Title:
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DATA ERROR DETECTOR FOR DIGITAL MODEMS USING TRELLIS CODING
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Patent #:
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Issue Dt:
|
03/07/1989
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Application #:
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07140405
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Filing Dt:
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01/04/1988
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Title:
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SECONDARY CHANNEL FOR DIGITAL MODEMS USING SPREAD SPECTRUM SUBLIMINAL INDUCED MODULATION
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Patent #:
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Issue Dt:
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09/13/1988
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Application #:
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07140481
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Filing Dt:
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01/04/1988
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Title:
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NON-INTERRUPTIVE SPECTRUM ANALYZER FOR DIGITAL MODEMS
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Patent #:
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Issue Dt:
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08/22/1989
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Application #:
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07155226
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Filing Dt:
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02/12/1988
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Title:
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BIDIRECTIONAL MULTIFRAME CONVERTER FOR DATA COMMUNICATIONS SYSTEMS
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Patent #:
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Issue Dt:
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06/26/1990
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Application #:
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07249450
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Filing Dt:
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09/26/1988
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Title:
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TIME ORTHOGONAL MULTIPLE VIRTUAL DCE FOR USE IN ANALOG AND DIGITAL NETWORKS
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Patent #:
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Issue Dt:
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01/14/1992
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Application #:
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07294167
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Filing Dt:
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01/06/1989
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Title:
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COMMUNICATION OF A VOICE SIGNAL VIA CONTINUOUS QUADRATURE AMPLITUDE MODULATOR
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Patent #:
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Issue Dt:
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12/18/1990
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Application #:
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07349252
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Filing Dt:
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05/09/1989
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Title:
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AUTOMATIC EQUALIZER INITIALIZATION TIME CONTROL FOR MULTIPOINT NETWORKS
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Patent #:
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Issue Dt:
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03/24/1992
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Application #:
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07355663
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Filing Dt:
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05/23/1989
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Title:
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COMMUNICATION OF SECONDARY CHANNEL BYTE IN A SYNCHRONOUS MODEM WITHOUT STATISTICAL UNCERTAINTY
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Patent #:
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Issue Dt:
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05/08/1990
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Application #:
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07356080
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Filing Dt:
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05/23/1989
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Title:
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METHOD AND SYSTEM FOR A SYNCHRONIZED PSEUDO-RANDOM PRIVACY MODEM
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Patent #:
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Issue Dt:
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04/16/1991
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Application #:
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07357056
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Filing Dt:
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05/25/1989
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Title:
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ADAPTIVE TRANSMIT PRE-EMPHASIS FOR DIGITAL MODEM COMPUTED FROM NOISE SPECTRUM
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Patent #:
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Issue Dt:
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06/18/1991
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Application #:
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07453721
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Filing Dt:
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12/20/1989
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Title:
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TECHNIQUE FOR REDUCING ELECTROMAGNETIC INTERFERENCE
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Patent #:
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Issue Dt:
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04/14/1992
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Application #:
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07530144
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Filing Dt:
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05/29/1990
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Title:
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INBAND CODING OF SECONDARY DATA
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Patent #:
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Issue Dt:
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04/07/1992
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Application #:
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07588658
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Filing Dt:
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09/26/1990
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Title:
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MODULUS CONVERTER FOR FRACTIONAL RATE ENCODING
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Patent #:
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Issue Dt:
|
08/04/1992
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Application #:
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07626152
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Filing Dt:
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12/12/1990
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Title:
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TECHNIQUE FOR REDUCING ELECTROMAGNETIC INTERFERENCE
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Patent #:
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Issue Dt:
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10/05/1993
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Application #:
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07630636
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Filing Dt:
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12/20/1990
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Title:
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PREDISTORTION TECHNIQUE FOR COMMUNICATIONS SYSTEMS
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Patent #:
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Issue Dt:
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10/05/1993
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Application #:
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07681136
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Filing Dt:
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04/05/1991
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Title:
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FRACTIONAL RATE MODEM WITH TRELLIS
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Patent #:
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Issue Dt:
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08/22/1995
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Application #:
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07743661
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Filing Dt:
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08/12/1991
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Title:
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DIAL RESTORAL METHOD AND APPARATUS
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Patent #:
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Issue Dt:
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09/07/1993
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Application #:
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07748594
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Filing Dt:
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08/22/1991
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Title:
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SIGNAL POINT INTERLEAVING TECHNIQUE
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Patent #:
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Issue Dt:
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04/27/1993
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Application #:
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07766234
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Filing Dt:
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09/24/1991
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Title:
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DETECTING LOSS OF ECHO CANCELLATION
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Patent #:
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Issue Dt:
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11/29/1994
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Application #:
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07779455
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Filing Dt:
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10/18/1991
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Title:
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COMMAND AND CONTROL SIGNALLING METHOD AND APPARATUS
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Patent #:
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Issue Dt:
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05/10/1994
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Application #:
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07879492
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Filing Dt:
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05/07/1992
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Title:
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TECHNIQUE FOR AUTOMATIC IDENTIFICATION OF A REMOTE MODEM
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Patent #:
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Issue Dt:
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10/10/2000
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Application #:
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07880257
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Filing Dt:
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05/08/1992
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Title:
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APPARATUS AND METHOD FOR DOWNLOADING PROGRAMS
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Patent #:
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Issue Dt:
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01/18/1994
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Application #:
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07888075
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Filing Dt:
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05/26/1992
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Title:
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TRANSFORMER-LESS HYBRID CIRCUIT
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Patent #:
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Issue Dt:
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05/10/1994
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Application #:
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07916059
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Filing Dt:
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07/10/1992
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Title:
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A CIRCULAR LIMITER FOR USE IN A RECEIVER TO REDUCE THE EFFECTS OF SIGNAL DISTORTION
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Patent #:
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Issue Dt:
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04/05/1994
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Application #:
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07921164
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Filing Dt:
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07/29/1992
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Title:
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DATA COMMUNICATIONS EQUIPMENT SECURITY DEVICE USING CALLING PARTY DIRECTORY NUMBER
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Patent #:
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Issue Dt:
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05/10/1994
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Application #:
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07937009
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Filing Dt:
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08/31/1992
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Title:
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CONTINUOUS AUTHENTICATION USING AN IN-BAND OR OUT-OF-BAND SIDE CHANNEL
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Patent #:
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Issue Dt:
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09/20/1994
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Application #:
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07978536
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Filing Dt:
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11/19/1992
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Title:
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HALF-DUPLEX OR FULL-DUPLEX AUTOMODE OPERATION FOR USE IN DATA COMMUNICATIONS EQUIPMENT
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Patent #:
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Issue Dt:
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02/28/1995
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Application #:
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07990159
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Filing Dt:
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12/14/1992
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Title:
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METHOD FOR TRANSFERRING INFORMATION USING MODEMS
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Patent #:
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Issue Dt:
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03/07/1995
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Application #:
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07992183
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Filing Dt:
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12/17/1992
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Title:
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DATA COMMUNICATIONS EQUIPMENT INTERFACE LEADS TO SIGNAL HALF-DUPLEX OR FULL-DUPLEX OPERATION
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Patent #:
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Issue Dt:
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12/26/1995
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Application #:
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07996434
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Filing Dt:
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12/24/1992
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Title:
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A METHOD AND APPARATUS FOR SWITCHING COMMUNICATIONS FROM A SECONDARY CHANNEL TO A PRIMARY CHANNEL
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Patent #:
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Issue Dt:
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12/13/1994
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Application #:
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08011603
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Filing Dt:
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02/01/1993
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Title:
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FOLDING ELECTRONIC CARD ASSEMBLY
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Patent #:
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Issue Dt:
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11/01/1994
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Application #:
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08019974
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Filing Dt:
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02/19/1993
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Title:
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WIDE AREA NETWORK (WAN) ARRANGEMENT
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Patent #:
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Issue Dt:
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07/16/1996
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Application #:
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08064304
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Filing Dt:
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05/20/1993
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Title:
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SYSTEM FOR PCMCIA PERIPHERAL TO EXECUTE INSTRUCTIONS FROM SHARED MEMORY WHERE THE SYSTEM RESET SIGNAL CAUSES SWITCHING BETWEEN MODES OF OPERATION BY ALERTING THE STARTING ADDRESS
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Patent #:
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Issue Dt:
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09/05/1995
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Application #:
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08076505
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Filing Dt:
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06/14/1993
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Title:
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SIMULTANEOUS ANALOG AND DIGITAL COMMUNICATION
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Patent #:
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Issue Dt:
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09/24/1996
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Application #:
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08076506
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Filing Dt:
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06/14/1993
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Title:
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COMPANDING OF VOICE SIGNAL FOR SIMULTANEOUS VOICE AND DATA TRANSMISSION
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Patent #:
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Issue Dt:
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05/28/1996
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Application #:
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08076507
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Filing Dt:
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06/14/1993
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Title:
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A METHOD FOR INCREASING THE DYNAMIC RANGE OF A SIGNAL IN A SIMULTANEOUS VOICE AND DATA SYSTEM BY THE USE OF OVERLAPPING SIGNAL POINT REGIONS AND TRELLIS CODING
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Patent #:
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Issue Dt:
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07/25/1995
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Application #:
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08076516
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Filing Dt:
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06/14/1993
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Title:
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SIMULTANEOUS ANALOG AND DIGITAL COMMUNICATIONS WITH A SELECTION OF DIFFERENT SIGNAL POINT CONSTELLATIONS BASED ON SIGNAL ENERGY
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Patent #:
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Issue Dt:
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11/04/1997
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Application #:
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08076517
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Filing Dt:
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06/14/1993
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Title:
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SIMULTANEOUS ANALOG AND DIGITAL COMMUNICATION USING FRACTIONAL RATE ENCODING
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Patent #:
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Issue Dt:
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07/16/1996
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Application #:
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08076519
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Filing Dt:
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06/14/1993
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Title:
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CONTROLLED SIMULTANEOUS ANALOG AND DIGITAL COMMUNICATION
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Patent #:
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Issue Dt:
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07/16/1996
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Application #:
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08076520
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Filing Dt:
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06/14/1993
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Title:
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SIMULTANEOUS ANALOG AND DIGITAL COMMUNICATION APPLICATIONS
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Patent #:
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Issue Dt:
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12/12/1995
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Application #:
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08076530
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Filing Dt:
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06/14/1993
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Title:
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SHAPED SIGNAL SPACES IN A SIMULTANEOUS VOICE AND DATA SYSTEM
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Patent #:
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Issue Dt:
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09/12/1995
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Application #:
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08096541
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Filing Dt:
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07/26/1993
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Title:
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A FALLBACK METHOD TO 1200 BITS PER SECOND FOR USE IN MOBILE RADIO
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Patent #:
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Issue Dt:
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03/07/1995
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Application #:
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08141301
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Filing Dt:
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10/22/1993
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Title:
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METHOD AND APPARATUS FOR ADAPTIVELY PROVIDING PRECODING AND PREEMPHASIS CONDITIONING TO SIGNAL DATA FOR TRANSFER OVER A COMMUNICATION CHANNEL
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Patent #:
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Issue Dt:
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12/12/1995
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Application #:
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08151677
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Filing Dt:
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11/15/1993
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Title:
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VOICE ACTIVATED DATE RATE CHANGE IN SIMULTANEOUS VOICE AND DATA TRANSMISSION
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Patent #:
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Issue Dt:
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04/09/1996
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Application #:
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08151686
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Filing Dt:
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11/15/1993
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Title:
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SIDE-CHANNEL COMMUNICATIONS IN SIMULTANEOUS VOICE AND DATA TRANSMISSION
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Patent #:
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Issue Dt:
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04/30/1996
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Application #:
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08151689
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Filing Dt:
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11/15/1993
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Title:
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CONVERSION OF A FAX MODULATION TO A DATA MODULATION
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Patent #:
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Issue Dt:
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12/05/1995
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Application #:
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08153009
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Filing Dt:
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11/12/1993
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Title:
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CALL ESTABLISHMENT FOR SIMULTANEOUS ANALOG AND DIGITAL COMMUNICATIONS
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Patent #:
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Issue Dt:
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10/10/1995
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Application #:
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08163963
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Filing Dt:
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12/08/1993
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Title:
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CREDIT CARD-SIZED MODEM WITH MODULAR DAA
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Patent #:
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Issue Dt:
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12/26/1995
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Application #:
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08175449
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Filing Dt:
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12/30/1993
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Title:
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DUAL MODE CELLULAR MODEM
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Patent #:
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Issue Dt:
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11/04/1997
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Application #:
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08216373
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Filing Dt:
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03/23/1994
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Title:
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INDEPENDENTLY SWITCHED VOICE AND DATA CALLS USING A SIMULTANEOUS VOICE AND DATA MODEM
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|
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Patent #:
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Issue Dt:
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02/11/1997
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Application #:
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08225295
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Filing Dt:
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04/08/1994
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Title:
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SIMULTANEOUS VOICE AND DATA CALL ESTABLISHMENT USING A SIMULTANEOUS VOICE AND DATA MODEM POOL AND PRIVATE BRANCH EXCHANGE FACILITIES
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Patent #:
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Issue Dt:
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06/18/1996
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Application #:
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08230263
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Filing Dt:
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04/20/1994
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Title:
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COUPLER FOR COMMUNICATION SYSTEMS WHICH UTILIZE MORE THAN ONE FREQUENCY BAND
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|
|
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Patent #:
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Issue Dt:
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09/24/1996
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Application #:
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08230565
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Filing Dt:
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04/20/1994
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Title:
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SOUND MODIFICATION FOR USE IN SIMULTANEOUS VOICE AND DATA COMMUNICATIONS
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|
|
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Patent #:
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Issue Dt:
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06/03/1997
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Application #:
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08262169
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Filing Dt:
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06/20/1994
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Title:
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METHOD FOR DIAL-IN ACCESS SECURITY USING A MULTIMEDIA MODEM
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|
|
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Patent #:
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Issue Dt:
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01/02/1996
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Application #:
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08304715
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Filing Dt:
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09/12/1994
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Title:
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METHOD AND APPARATUS FOR AUTOMATICALLY ADAPTING THE AMOUNT OF WARPING IN A SYSTEM TRANSMITTING INFORMATION THROUGH A NON-LINEAR CHANNEL
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|
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Patent #:
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Issue Dt:
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08/27/1996
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Application #:
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08320147
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Filing Dt:
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10/07/1994
|
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Title:
|
INTERCHANGE CIRCUIT OVERLOAD PROTECTION USING DRIVER CURRENT LIMITING
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|
|
|
|
Patent #:
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|
Issue Dt:
|
03/03/1998
|
Application #:
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08320810
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Filing Dt:
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10/11/1994
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|
Title:
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METHOD FOR MEASURING THE USABILITY OF A SYSTEM AND FOR TASK ANALYSIS AND RE-ENGINEERING
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