| Patents for H04L 25 - Baseband systems (55,083) |
|---|
| 08/02/1977 | US4039748 Method and device for synchronizing the receiver clock in a data transmission system |
| 07/26/1977 | US4038686 Defect detection and compensation |
| 07/26/1977 | US4038652 Digital communications line terminal compacter/expander |
| 07/19/1977 | US4037257 Data clock separator with missing clock detect |
| 07/19/1977 | US4037160 Method and apparatus for adjusting and readjusting an automatic corrector for a data signal transmission system |
| 07/12/1977 | US4035735 Demodulator comprising a phase shift circuit for controlling outputs of an automatic equalizer |
| 07/12/1977 | US4035625 Method and apparatus for performing binary equalization in voice-band phase-modulation modems |
| 07/05/1977 | US4034348 Apparatus, including delay means, for sampling and recovering data recorded by the double transition recording technique |
| 07/05/1977 | US4034340 System for determining the quality of transmission of incoming digital message signals |
| 07/05/1977 | US4034236 Device for forming a bipolar signal of 50% duty cycle |
| 06/28/1977 | US4032915 Speed-tolerant digital decoding system |
| 06/28/1977 | US4032847 Distortion adapter receiver having intersymbol interference correction |
| 06/28/1977 | US4032800 Logic level conversion system |
| 06/28/1977 | US4032762 Adjustable digital filter for high speed digital transmission |
| 06/21/1977 | US4031506 Multiplexer commutated high pass filter |
| 06/21/1977 | US4031480 Circuit arrangement for the ungrounded transmission of signals through testing points in communication systems |
| 06/21/1977 | US4031417 Apparatus for coupling a digital data generator to a digital data readout device with electrical isolation therebetween |
| 06/14/1977 | US4029907 Asynchronous digital repeater |
| 06/14/1977 | US4029905 Apparatus for detecting the rhythm of an NRZ message |
| 06/14/1977 | US4029904 Receiver circuit for automatic correction of DC level disturbances |
| 06/14/1977 | US4029903 Receiver for PSK digital signals |
| 06/07/1977 | US4028559 Regenerative repeater circuit arrangement for use in digital data transmission systems |
| 06/07/1977 | US4028535 Apparatus and method for generating a data code with a spectral null |
| 05/31/1977 | US4027335 DC free encoding for data transmission system |
| 05/31/1977 | US4027301 System for serially transmitting parallel digital data |
| 05/31/1977 | US4027267 Method of decoding data content of F2F and phase shift encoded data streams |
| 05/31/1977 | US4027263 Frequency generator |
| 05/31/1977 | US4027258 Time domain automatic equalizer with frequency domain control |
| 05/31/1977 | US4027243 Message generator for a controlled radio transmitter and receiver |
| 05/31/1977 | US4027152 Apparatus and method for transmitting binary-coded information |
| 05/31/1977 | US4027100 Code transmission system having buffers of approximately equal capacities on both transmitting and receiving sides |
| 05/17/1977 | US4024501 Line driver system |
| 05/10/1977 | US4023140 Seismic data telemetering system |
| 05/10/1977 | US4022973 Apparatus for indicating synchronization and out-of-synchronization conditions |
| 05/03/1977 | US4021738 Adaptive equalizer with fast convergence properties |
| 05/03/1977 | US4021685 Pulse circuit for reshaping long line pulses |
| 04/26/1977 | US4020288 System for data transmission through the channels of a frequency division multiplex system |
| 04/26/1977 | US4020282 High density data processing system |
| 04/19/1977 | US4019140 Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems |
| 04/19/1977 | US4019048 Regenerator for an optical transmission system |
| 04/12/1977 | US4017803 Data recovery system resistant to frequency deviations |
| 04/12/1977 | US4017688 Method and devices for inserting additional pattern in, or removing same from, a message |
| 03/29/1977 | US4015252 High speed serial data synchronization scheme |
| 03/29/1977 | US4015144 Circuit arrangement for conversion of an analog signal into a binary signal |
| 03/22/1977 | US4014002 Data acquisition and transfer system |
| 03/22/1977 | US4013980 Equalizer for partial response signals |
| 03/22/1977 | US4013368 Sample cartridge for use in apparatus for evaluation of biological fluid |
| 03/15/1977 | US4012598 Method and means for pulse receiver synchronization |
| 03/15/1977 | US4012593 Bidirectional repeater in data transmission system |
| 03/08/1977 | US4011406 PCM regenerator |
| 03/08/1977 | US4011405 Digital data transmission systems |
| 03/01/1977 | US4010421 Synchronization method for the recovery of binary signals |
| 02/22/1977 | US4009356 Data modems having data drop-out and data echo protection |
| 02/22/1977 | US4009341 Device for regenerating telegraphic signals |
| 02/08/1977 | US4007421 Circuit for encoding an asynchronous binary signal into a synchronous coded signal |
| 02/08/1977 | US4007382 Bipolar signal processing circuit |
| 02/08/1977 | US4007329 Data communications system with improved asynchronous retiming circuit |
| 02/01/1977 | US4006352 Equalizer comprising first and second equalizing means and trainable in two steps |
| 02/01/1977 | US4006314 Digital interface for resynchronizing digital signals |
| 02/01/1977 | US4006304 Apparatus for word synchronization in an optical communication system |
| 01/25/1977 | US4005478 Process and arrangement for representing digital data by binary signals |
| 01/18/1977 | US4004239 Discrimination circuit for isolating disturbance signals which are superimposed on D.C. pedestals |
| 01/18/1977 | US4004238 Method and apparatus for the removal of ringing phenomena from signal impulses |
| 01/18/1977 | US4004226 QAM receiver having automatic adaptive equalizer |
| 01/18/1977 | US4004091 Bidirectional line driver |
| 01/11/1977 | US4003042 System for the transfer of two states by multiple scanning |
| 01/11/1977 | US4003041 System for converting binary signals into shorter balanced ternary code signals |
| 01/11/1977 | US4003032 Automatic terminal and line speed detector |
| 01/11/1977 | US4002852 Electronic telephone network |
| 01/11/1977 | US4002833 Rate independent signalling means |
| 01/04/1977 | US4001811 Method and apparatus for coding and decoding digital information |
| 01/04/1977 | US4001693 Apparatus for establishing communication between a first radio transmitter and receiver and a second radio transmitter and receiver |
| 01/04/1977 | US4001578 Optical communication system with bipolar input signal |
| 01/04/1977 | US4001504 Automatic terminal data rate selection |
| 12/28/1976 | US4000364 Regulated pulsed current telegraph adapter |
| 12/21/1976 | US3999085 Noise rejection circuit |
| 12/14/1976 | US3997878 Serial data multiplexing apparatus |
| 12/14/1976 | US3997798 Or pulse gaps whose duration is shorter than a given test period t(p) from a sequence of digital pulses present at the input end |
| 12/07/1976 | US3996613 Data recording and transmission apparatus utilizing non-consecutive zero coding |
| 12/07/1976 | US3996519 Digital signal processor |
| 12/07/1976 | US3996422 Multiple channel decommutator accumulator |
| 11/30/1976 | US3995264 Apparatus for encoding and decoding binary data in a modified zero modulation data code |
| 11/30/1976 | US3995252 Data processing arrangement for printers |
| 11/30/1976 | US3995225 Synchronous, non return to zero bit stream detector |
| 11/23/1976 | US3993953 Apparatus and method for digitally generating a modified duobinary signal |
| 11/23/1976 | US3993952 Transmission system for pulse signals of fixed clock frequency |
| 11/23/1976 | US3993867 Digital single signal line full duplex method and apparatus |
| 11/16/1976 | US3992616 Receiver equalizer apparatus |
| 11/16/1976 | US3992581 Phase locked loop NRZ data repeater |
| 11/16/1976 | US3992580 Discrete control correction for synchronizing digital networks |
| 11/16/1976 | US3991611 Digital telemetering system for subsurface instrumentation |
| 11/09/1976 | US3991379 Logic level decoding circuit |
| 11/09/1976 | US3991325 Transistor amplifier for generating complementary trapezoidal waveforms |
| 11/02/1976 | US3990010 Data transmission systems |
| 11/02/1976 | US3990009 Method and apparatus for uniquely encoding channels in a digital transmission system |
| 10/26/1976 | US3988718 Logic control system |
| 10/26/1976 | US3988676 Coding and decoding system with multi-level format |
| 10/26/1976 | US3988538 Digital data scrambler and descrambler |
| 10/19/1976 | US3987422 System for detecting signal quality of a phase-modulated wave |
| 10/19/1976 | US3987395 Arrangement of high frequency pulse regenerative repeaters |