| Patents for H04L 1 - Arrangements for detecting or preventing errors in the information received (103,402) |
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| 10/01/1993 | WO1993020620A1 Error detection system |
| 09/30/1993 | WO1993019545A1 Digital audio data muting system and method |
| 09/29/1993 | EP0562875A1 Multiresolution QAM system |
| 09/29/1993 | EP0562422A1 QAM receiver with means for detecting constellation size |
| 09/29/1993 | CN1076816A System of communication |
| 09/28/1993 | US5249186 Apparatus for detecting the start of frame in bipolar transmission systems |
| 09/21/1993 | US5247363 Error concealment apparatus for hdtv receivers |
| 09/21/1993 | CA2021232C Diversity receiving system for use in digital radio communication with means for selecting branch by estimating propagation path property |
| 09/20/1993 | WO1993019526A1 Method and apparatus for estimating signal weighting parameters in a diversity receiver |
| 09/20/1993 | WO1993019519A1 Method and apparatus for estimating signal weighting parameters in a receiver |
| 09/16/1993 | WO1993018589A1 Data recovery after error correction failure |
| 09/14/1993 | US5245633 System for transmitting digital data over an electricity power line |
| 09/14/1993 | US5245616 Technique for acknowledging packets |
| 09/14/1993 | CA1322237C Transceiver arrangement for full-duplex data transmission comprising an echo canceller and provisions for testing the arrangement |
| 09/06/1993 | WO1993018601A1 Apparatus and method for reducing message collision between mobile stations simultaneously accessing a base station in a cdma cellular communications system |
| 09/03/1993 | WO1993018593A1 Clock recovery method and apparatus in a diversity receiver |
| 09/02/1993 | WO1993017511A1 Testing of a data-transmission line using dual cross-correlation to assess the number of defective bits |
| 09/02/1993 | WO1993017348A1 Process for detecting non-linear behaviour in a digital data transmission path to be examined |
| 09/02/1993 | DE4306081A1 Automatic warning appts. for breakage in cable - detects if abnormal condition exists in cable and then automatically switches over to spare cable and continues transmission if no further abnormal condition is detected |
| 09/01/1993 | EP0558400A1 Digital information transmission system by means of an optical link using repeaters with optical amplifiers |
| 08/31/1993 | US5241701 Antenna selecting diversity receiving apparatus |
| 08/31/1993 | US5241565 Method and apparatus for effecting efficient transmission of data |
| 08/31/1993 | US5241549 Data communications system |
| 08/31/1993 | US5241548 Method for error correction of a transmitted data word |
| 08/29/1993 | CA2090292A1 System for transmitting digital informations over an optical amplifier repeater optical link |
| 08/27/1993 | CA2130895A1 Process for detecting non-linear behavior in a digital data transmission path to be examined |
| 08/22/1993 | CA2130551A1 Method for determining the number of defective digital bits (defective bit number) transmitted over a data-transmission path to be tested, and device for the carring out of the method |
| 08/19/1993 | DE4204556A1 Interstation data transmission system detecting loss of voltage - Responds to failure of power supply at controlled station by return of incoming message to controlling station |
| 08/18/1993 | EP0556010A1 Diversity reception arrangement |
| 08/18/1993 | EP0555998A2 A packet framer |
| 08/18/1993 | EP0555289A1 Channel equalisation in particular for fading channels. |
| 08/17/1993 | US5237320 Radio paging system with different transmission speeds and receiver therefor |
| 08/17/1993 | US5237318 Dynamic switching arrangement for error masking in a system for doubling the digital channel |
| 08/17/1993 | CA1321430C Data path protection |
| 08/17/1993 | CA1321415C Non-linear squelch circuit for ieee-802.3 protocol |
| 08/11/1993 | EP0554872A1 Facsimile apparatus |
| 08/11/1993 | EP0486667A4 Communication signal having a time domain pilot component |
| 08/10/1993 | US5235621 For a mobile telephone |
| 08/10/1993 | US5235603 System for determining loss of activity on a plurality of data lines |
| 08/10/1993 | US5235602 Synchronous/asynchronous i/o channel check and parity check detector |
| 08/10/1993 | US5235599 Self-healing network with distributed failure restoration capabilities |
| 08/10/1993 | US5235220 Majority decision method and circuit wherein least possible flip-flops are used |
| 08/05/1993 | WO1993015562A1 Error protection in a subband coder |
| 08/05/1993 | WO1993015502A1 Method and system for the arrangement of vocoder data for the masking of transmission channel induced errors |
| 08/05/1993 | DE4303048A1 Alarm recognition apparatus for redundant layout circuit in radio equipment - has input circuits delaying alarm recognition signals when circuits are switched to be operational systems |
| 08/04/1993 | EP0553538A2 Fading and random pattern error protection method for dynamic bit allocation sub-band coding |
| 08/04/1993 | EP0553289A1 Digital audio broadcasting system |
| 08/04/1993 | EP0532504A4 Cable television radio frequency data processor |
| 08/04/1993 | EP0395739B1 Process for controlling and/or monitoring and circuit arrangement for implementing the process |
| 08/04/1993 | CN1021758C Mobile assisted handoff |
| 08/03/1993 | US5233629 Method and apparatus for communicating digital data using trellis coded qam |
| 08/03/1993 | US5233345 Selective calling receiver with multiple clock frequencies for receiving long messages |
| 08/01/1993 | WO1993015575A1 Process for recovering test data transmitted over a transmission path for cellular digital streams |
| 08/01/1993 | CA2129224A1 Procedure for recovering test data transmitted on a transmission line for data line for data flows with cellular structure |
| 07/29/1993 | DE4202140A1 Digital audio signal transmission using sub-band coding - inserting extra fault protection signal, or fault protection bit into data frame |
| 07/28/1993 | EP0552889A1 Digital signal hardware protection switching |
| 07/28/1993 | EP0552861A2 Modifying check codes in data packet transmission |
| 07/28/1993 | EP0552781A2 Voice signal communication with burst error reduction |
| 07/28/1993 | EP0552693A2 Method and system for controlling the minimal distance between successive errors in digital radio transmission |
| 07/28/1993 | EP0552216A1 Network traffic management. |
| 07/28/1993 | EP0506804B1 Receiver for a digital radiomobile system with cancellation of isofrequency interfering signals having the same kind of modulation, and relevant method |
| 07/22/1993 | WO1993014588A1 Method and apparatus for the formatting of data for transmission |
| 07/22/1993 | WO1993014574A1 Optical transmission system |
| 07/22/1993 | CA2087585A1 Voice signal communication with burst error reduction |
| 07/21/1993 | EP0551973A2 Triple orthogonally interleaved error correction system |
| 07/21/1993 | EP0551937A1 Device for measuring transmission quality in a two-wire line with echo cancellation |
| 07/21/1993 | EP0551646A2 Concatenated block and convolution encoder-decoder |
| 07/20/1993 | US5230077 Method of reducing the power requirements in a mobile radio receiver |
| 07/20/1993 | US5230003 Decoding system for distinguishing different types of convolutionally-encoded signals |
| 07/20/1993 | US5230002 Compact device for monitoring ATM cells |
| 07/20/1993 | US5229997 Carrier recovery control with sequential fec sync detection and frame sync detection |
| 07/14/1993 | CN1021612C Data receiver interface circuit and method for receiving correct framing data |
| 07/13/1993 | US5228042 Method and circuit for testing transmission paths |
| 07/13/1993 | US5228025 Method for the broadcasting of digital data, notably for radio broadcasting at a high bit-rate towards mobile receivers, with time-frequency interlacing and assistance in the acquisition of automatic frequency control, and corresponding receiver |
| 07/08/1993 | WO1993013605A1 Radio communications apparatus with diversity |
| 07/08/1993 | CA2126574A1 Radio communications apparatus with diversity |
| 07/07/1993 | EP0550143A2 MLSE for mobile radio channels |
| 07/07/1993 | EP0549672A1 Sequence synchronisation |
| 07/07/1993 | CN1074068A Viterbi decoder bit efficient chainback memory method and decoder incorporating same |
| 07/06/1993 | US5226081 Multi-carrier communication system using ciphered carrier bit assignment information |
| 06/30/1993 | EP0548939A2 Transmission power control system capable of keeping signal quality constant in mobile communication network |
| 06/29/1993 | US5224167 Speech coding apparatus using multimode coding |
| 06/29/1993 | US5224128 Method and circuit arrangement for monitoring the operating condition of an electro-optical transmission system |
| 06/29/1993 | US5224105 Transfer of data without loss over a noisy channel |
| 06/24/1993 | WO1993012598A1 Combination of two signals, the second appearing as a noise for the first one |
| 06/23/1993 | EP0547776A2 Method and apparatus for predicting transmission system errors and failures |
| 06/22/1993 | US5222078 Data signal compensation apparatus for use in a receiver |
| 06/22/1993 | US5222061 Data services retransmission procedure |
| 06/22/1993 | CA1319271C Programmable controller with fiber optic input/output module |
| 06/16/1993 | EP0546806A1 A method for space diversity reception |
| 06/16/1993 | EP0546445A2 Method for controlling a digital, cellular mobile communication network and mobile communication network using that method |
| 06/15/1993 | US5220581 Digital data link performance monitor |
| 06/09/1993 | EP0545907A2 Improved synchronous/asynchronous modem |
| 06/09/1993 | EP0545001A2 Failure detection in a redundant duplex system |
| 06/09/1993 | EP0544964A1 Store and forward apparatus and method of maintaining integrity of data during storage |
| 06/09/1993 | EP0511295A4 Method of and apparatus for controlling modulation of digital signals in frequency-modulated transmissions |
| 06/08/1993 | US5218622 System of encoding digital signals intended for transmission and/or storage and a corresponding decoding system |
| 06/08/1993 | US5218601 Method for searching for alternate path in communication network |
| 06/08/1993 | US5218465 Intelligent interconnects for broadband optical networking |
| 06/08/1993 | US5218187 Hand-held data capture system with interchangeable modules |