| Patents for H04L 25 - Baseband systems (55,083) |
|---|
| 04/22/1980 | CA1076262A1 Method and apparatus for determining the initial values of the coefficients of a complex transversal equalizer |
| 04/22/1980 | CA1076259A1 Speed-tolerant digital decoding system |
| 04/16/1980 | EP0009557A1 Method and circuit for the simultaneous coding of two binary signal sequences into one pulse sequence, method and circuit for decoding the latter sequence, and their application to an interface transmitter-receiver |
| 04/15/1980 | US4198663 Digital signal recording system |
| 04/15/1980 | CA1075817A1 Sequential encoding and decoding of variable word length fixed rate data codes |
| 04/08/1980 | US4197502 Digital signal detector |
| 04/08/1980 | CA1075361A1 Data transmission, particularly with delta modulation |
| 04/01/1980 | US4196405 Self-correcting equalization system |
| 03/25/1980 | US4195318 High density bias linearized magnetic recording system utilizing Nyquist bandwidth partial response transmission |
| 03/19/1980 | EP0008608A1 Circuit arrangement for carrying out a loop test for data transmission lines |
| 03/18/1980 | CA1074020A1 Clock supervision in digital systems |
| 03/05/1980 | WO1981000655A1 Wire data transmission system |
| 03/04/1980 | US4191849 Data synchronization circuit |
| 03/04/1980 | CA1073115A1 Apparatus, including delay means, for sampling and recovering data recorded by the double transition recording technique |
| 02/26/1980 | US4190741 Method and device for receiving an interface signal |
| 02/20/1980 | EP0008035A1 Regenerator for digital signals having a direct current component |
| 02/19/1980 | US4189621 CMI-encoder |
| 02/12/1980 | US4188620 Phase decoder |
| 02/12/1980 | US4188615 Bit error detecting circuit for use in a digital signal transmission line |
| 02/12/1980 | US4188581 Signalling system |
| 02/12/1980 | CA1071719A1 Partial response modulation system |
| 02/12/1980 | CA1071718A1 Carrier regeneration circuit |
| 02/06/1980 | EP0007578A1 Circuit arrangement for the transmission of telegraphic signals |
| 02/05/1980 | US4187438 Circuit arrangement for unilaterally scanning distorted teletype characters |
| 01/29/1980 | US4186384 Signal bias remover apparatus |
| 01/29/1980 | US4186379 High-speed data transfer apparatus |
| 01/29/1980 | CA1070867A1 Time division digital transmission system |
| 01/29/1980 | CA1070839A1 Circuit for encoding an asynchronous binary signal into a synchronous coded signal |
| 01/23/1980 | EP0006988A1 Circuit for timing signal recovery in digital signal transmission |
| 01/22/1980 | US4185273 Data rate adaptive control device for Manchester code decoders |
| 01/22/1980 | US4185249 Bipolar signal to current converter |
| 01/15/1980 | US4184129 Systems for transmitting data between distant locations |
| 01/15/1980 | US4184045 System and method for transmission of information |
| 01/09/1980 | EP0006496A1 Method for clock signal recovery |
| 01/09/1980 | EP0006468A2 Parallel to series data converters |
| 01/09/1980 | EP0006194A1 Circuit arrangement for the ungrounded transmission of signals across points of isolation in communication systems |
| 01/09/1980 | EP0006182A1 Circuit arrangement for the ungrounded transmission of signals across points of isolation in telecommunication installations |
| 01/09/1980 | EP0006121A1 Method and arrangement for initiating an adaptive equalizer starting from an unknown data signal in a transmission system utilizing quadrature amplitude modulation |
| 01/01/1980 | US4181919 Adaptive synchronizing circuit for decoding phase-encoded data |
| 12/25/1979 | USRE30182 Precoded ternary data transmission |
| 12/12/1979 | EP0005808A1 Arrangement for the generation from n binary signals of digital signals with 2n levels |
| 12/11/1979 | US4178620 Three state bus driver with protection circuitry |
| 12/11/1979 | US4178582 Digital signal transmitter/receiver system including programmable self-test capability |
| 12/11/1979 | US4178569 Hybrid for two-wire full-duplex transmission of digital signals |
| 12/11/1979 | US4178549 Recognition of a received signal as being from a particular transmitter |
| 12/11/1979 | US4178504 Balanced termination for a transmission line |
| 12/11/1979 | CA1068007A1 Automatic terminal data rate selection |
| 11/27/1979 | US4176248 System for identifying and correcting the polarity of a data signal |
| 11/27/1979 | US4176247 Signal scrambler-unscrambler for binary coded transmission system |
| 11/20/1979 | US4175213 Regenerator having automatic gain control referenced to a data-pattern-dependent pulse stream |
| 11/20/1979 | CA1066785A1 Method and apparatus for fast determination of initial transversal equalizer coefficient values |
| 11/13/1979 | CA1066421A1 Method and apparatus for uniquely encoding channels in a digital transmission system |
| 11/13/1979 | CA1066370A1 Method and apparatus for recovering data and clock information in a self-clocking data stream |
| 11/13/1979 | CA1066362A1 Methods and apparatus for reducing intelligible crosstalk in single sideband radio systems |
| 10/31/1979 | EP0004856A1 Method for transmitting data streams at different bit rates and apparatus at the sending and receiving side for implementing the method |
| 10/30/1979 | US4173014 Apparatus and method for receiving digital data at a first rate and outputting the data at a different rate |
| 10/23/1979 | CA1065061A1 Cpu-1/0 bus interface for a data processing system |
| 10/09/1979 | US4170758 Process and device for the nonlinear equalization of digital signals |
| 10/09/1979 | US4170715 Data communication system |
| 10/03/1979 | EP0004306A2 Circuitry for excess current protection of electronic sending and receiving devices |
| 10/02/1979 | CA1063719A1 Phase locked loop decoder |
| 10/02/1979 | CA1063718A1 High density magnetic storage system |
| 09/25/1979 | CA1063269A1 Data transmission systems |
| 09/19/1979 | EP0004008A1 Fast amplitude discriminator for digital signals |
| 09/18/1979 | CA1062824A1 Two-way telephone transmission system utilizing opto-couplers |
| 09/11/1979 | US4167760 Bi-phase decoder apparatus and method |
| 09/11/1979 | CA1062372A1 Digital data signalling systems and apparatus therefor |
| 09/05/1979 | EP0003755A1 Circuit arrangement for the reception of single current and double current telegraph signals |
| 09/05/1979 | EP0003754A1 Receiver set for data signals without direct current component |
| 08/28/1979 | US4166196 Electric direct current telegraphy transmitter |
| 08/28/1979 | CA1061491A1 Electronic telephone network |
| 08/28/1979 | CA1061483A1 Alignment of bytes in a digital data bit stream |
| 08/28/1979 | CA1061469A1 Signal correlator |
| 08/21/1979 | US4165491 Circuit for detecting zero crossing points for data signal |
| 08/21/1979 | CA1061005A1 Data communications |
| 08/21/1979 | CA1061004A1 Digital interface for resynchronizing digital signals |
| 08/21/1979 | CA1060976A1 Time division switching network for switching multirate multiplexed data |
| 08/14/1979 | CA1060547A1 Receiver in a transmission system for binary pulse signals, comprising a circuit for automatic correction of dc level disturbances |
| 08/08/1979 | EP0003234A1 Process and device for non-linear equalization on sequences of digital signals |
| 07/31/1979 | US4163209 Technique for controlling memoryful non-linearities |
| 07/31/1979 | CA1059636A1 Apparatus and method employing modified zero modulation data code |
| 07/24/1979 | CA1059222A1 Self-adapting equalization system |
| 07/17/1979 | US4161628 Technique for tracking amplitude fades for multi-amplitude signalling |
| 07/11/1979 | EP0002693A1 Method for low-distortion transmission of wide-band signals over balanced or unbalanced lines |
| 07/10/1979 | US4160951 Method of regenerating asynchronous data signals and apparatus for performing the method |
| 07/03/1979 | US4160276 Aperture correction circuit |
| 07/03/1979 | US4160157 Signal transmission circuit with improved digital signal recovery |
| 06/26/1979 | US4159535 Framing and elastic store circuit apparatus |
| 06/26/1979 | CA1057406A1 Method and device for synchronizing the receiver clock in a data transmission system |
| 06/12/1979 | US4158232 Adaptive corrector |
| 06/12/1979 | CA1056510A1 Multipoint data communication system |
| 06/05/1979 | US4157509 Variable reference signal generating circuit and analog comparator utilizing hysteresis |
| 06/05/1979 | US4157458 Circuit for use either as a serial-parallel converter and multiplexer or a parallel-serial converter and demultiplexer in digital transmission systems |
| 06/05/1979 | CA1055847A1 Method and apparatus for decoding diphase signals |
| 05/29/1979 | CA1055612A1 Zero suppression in pulse transmission systems |
| 05/22/1979 | US4156106 Multiplex-data bus modulator/demodulator |
| 05/22/1979 | CA1055114A1 Regulated pulsed current telegraph adapter |
| 05/15/1979 | US4155074 Data collection system |
| 05/15/1979 | US4155012 Discrimination circuit arrangements |
| 05/15/1979 | US4154985 Interface circuit for digital telephone facilities |