| Patents for H04J 3 - Time-division multiplex systems (63,408) |
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| 08/22/1991 | DE4004956A1 Interface circuit for async. time division multiplex system - uses comparators in conjunction with multiplexes and buffers |
| 08/22/1991 | CA2075475A1 Multiple buffer time division multiplexing ring |
| 08/21/1991 | EP0441980A1 Time-division multiplex data relay exchange system |
| 08/20/1991 | US5042082 Mobile assisted handoff |
| 08/20/1991 | CA1287897C Multipoint data communication with a supervisory system for detecting a malfunctioning remote station |
| 08/17/1991 | WO1991012678A1 Process and device for beat recovery |
| 08/14/1991 | DE4003820A1 Wireless digital telephone system base station emulator - initiates synchronisation for assigning time slots to subscriber station within frame pattern of signal using positive edges |
| 08/14/1991 | CN1053871A Frame restructuring interface for digital bit streams multiplexed by time-division multiplexing digital tributaries with different bit rates |
| 08/14/1991 | CN1013540B Radiotelephone system employing digitized speech-data and embedded signalling |
| 08/13/1991 | US5040194 Method and apparatus for providing for automatic gain control of incoming signals in a modem |
| 08/13/1991 | US5040170 System for cross-connecting high speed digital signals |
| 08/07/1991 | WO1991012681A1 Interconnecting and processing system for facilitating frequency hopping |
| 08/07/1991 | EP0440284A2 A system for the transmission of data packets |
| 08/07/1991 | EP0440128A1 Frames restructuring interface for digital sequences multiplexed by time division multiplexing of digital tributaries at different rates |
| 08/07/1991 | EP0440059A1 Byte transmission method making use of a synchronous frame for combining asynchronous cells and isochronous channels |
| 08/07/1991 | CN1013469B Modem with improved digital signal processor |
| 08/06/1991 | CA1287376C Processor based linked compressor-expander telecommunications system |
| 07/31/1991 | EP0438934A2 Distribution system for very high frequency signals |
| 07/30/1991 | US5036529 Digital auto-phase-controlled retiming circuit |
| 07/30/1991 | US5036526 Method of communicating stuffing indications in a multi-level communications system |
| 07/30/1991 | CA1287150C Synchronisation arrangements for a digital telecommunications exchange system |
| 07/30/1991 | CA1287130C Phase modulator apparatus for generating a burst phase-modulated wave |
| 07/25/1991 | WO1991011867A1 Passive optical network |
| 07/24/1991 | EP0438275A2 Improved data router with burst shuffling and deshuffling output buffers |
| 07/24/1991 | EP0438009A1 Method and system for smoothing and monitoring the data rates of asynchronous time division communications |
| 07/24/1991 | EP0437835A1 Frame synchronization system among multiple radio base stations for TDMA digital mobile communication system |
| 07/24/1991 | EP0242367B1 Asynchronous communication system |
| 07/24/1991 | CN1053339A Digital transmission system, transmitter and receiver to be utilised in transmission system and record carrier obtained by means of transmitter in form of recording means |
| 07/23/1991 | CA1286807C Synchronous/asynchronous communication system |
| 07/17/1991 | EP0437197A2 Digital cross connection apparatus |
| 07/17/1991 | EP0437072A1 Point-to-multipoint TDM/TDMA communication system using a packet-based frame structure |
| 07/17/1991 | EP0436991A1 Digital transmission system, transmitter and receiver to be utilised in the transmission system and record carrier obtained by means of the transmitter in the form of a recording means |
| 07/17/1991 | EP0436958A2 Cell signal processing circuit and optical switch apparatus using the same |
| 07/17/1991 | CN1053157A Method of transmitting wide-band digital signal in subsystem cellular chains by synchron digital multiplex hierarchy network |
| 07/17/1991 | CN1013238B Communication switching system |
| 07/17/1991 | CA2032954A1 Data router with burst shuffling and deshuffling output buffers |
| 07/16/1991 | US5033064 Clock dejitter circuit for regenerating DS1 signal |
| 07/16/1991 | US5033044 System for aligning transmission facility framing bits to the sonet H4 multiframe indicator byte |
| 07/16/1991 | CA1286429C Time division multiple access radio communication system |
| 07/11/1991 | WO1991010302A1 Data input control device for serial controller |
| 07/10/1991 | EP0436293A2 Inverse multiplexer and demultiplexer techniques |
| 07/10/1991 | EP0436292A2 Programmable multiplexing techniques for mapping a capacity domain into a time domain within a frame |
| 07/10/1991 | EP0436036A1 Frame aligner, control method thereof and apparatus therefor |
| 07/10/1991 | CN1052981A Statistical measurement equipment and telecommunication system using same |
| 07/10/1991 | CN1013162B Condition multiway transducer |
| 07/09/1991 | WO1991011064A1 Correlation code transmission system |
| 07/09/1991 | US5031129 Parallel pseudo-random generator for emulating a serial pseudo-random generator and method for carrying out same |
| 07/09/1991 | US5030951 Format converting system for synchronous optical network |
| 07/09/1991 | CA2033613A1 Digital transmission system, transmitter and receiver to be utilized in the transmission system and record carrier obtained by means of the transmitter in the form of a recording means |
| 07/09/1991 | CA1286041C Tdma communication system having common time slots for system maintenance |
| 07/03/1991 | EP0435458A1 Speech/voiceband data discriminator |
| 07/03/1991 | EP0435395A2 Hierarchical synchronization method for the nodes of a telecommunication network |
| 07/03/1991 | EP0435384A2 Circuit for bit rate-adaption |
| 07/03/1991 | EP0435383A2 Circuit for bit adaptation |
| 07/03/1991 | EP0435311A2 Data multiplexing device |
| 07/03/1991 | EP0435130A1 Device for inserting binary information elements in a determined frame structure |
| 07/03/1991 | EP0434972A2 Method for the integration of ISDN channels within a wide band asynchronous TDM channel for digital switching systems |
| 07/02/1991 | US5029333 Communications system |
| 07/02/1991 | US5029164 Congestion avoidance in high-speed network carrying bursty traffic |
| 07/02/1991 | US5029163 Synchronous protocol data formatter |
| 06/29/1991 | CA2033142A1 Data multiplexing device |
| 06/27/1991 | WO1991010304A1 Synchronous selective signalling system |
| 06/27/1991 | WO1991009480A1 Synchronous-asynchronous converter |
| 06/26/1991 | EP0434629A2 Method and apparatus for processing the signalling information within configurable multiplexers |
| 06/26/1991 | EP0433707A2 Receiver for a digital auxiliary signal in a digital communication system |
| 06/26/1991 | EP0433706A2 Auxiliary signal transmission in a communication system for high bit-rate digital signals |
| 06/25/1991 | US5027381 Over speed data rate adjustment method and apparatus in an asynchronous data stream |
| 06/25/1991 | US5027375 Process for the resynchronization of an exchange in a telecommunication network |
| 06/25/1991 | US5027351 Asynchronous time division communication system |
| 06/25/1991 | US5027348 Method and apparatus for dynamic data block length adjustment |
| 06/25/1991 | CA1285340C Digital data multiple conversion system for converting data having a frequency to data having another frequency by a digital stuffingmethod |
| 06/25/1991 | CA1285339C Method and apparatus for transmitting and receiving a digital signal |
| 06/23/1991 | WO1991010298A1 Passive optical ring network |
| 06/19/1991 | EP0433154A1 Synchronous-asynchronous converter |
| 06/19/1991 | EP0432678A1 High-speed synchronous transmission line access terminal |
| 06/19/1991 | EP0432556A2 Method for the transmission of 1544 and/or 6312 kbit/s signals over 2048 and/or 8448 kbit/s links in the synchronous digital multiplex hierarchy |
| 06/18/1991 | US5025458 Apparatus for decoding frames from a data link |
| 06/18/1991 | US5025457 Controlling frequency of a clock |
| 06/18/1991 | US5025442 TDM/FDM communication system with pseudo-duplex capability |
| 06/18/1991 | US5025256 Data transmission code |
| 06/18/1991 | CA1285054C Time division switching system with time slot alignment circuitry |
| 06/18/1991 | CA1285053C T1 line format for robbed signaling for use with ccitt 32k bit per second adpcm clear channel transmission |
| 06/14/1991 | CA2032101A1 Synchronous to asynchronous converter |
| 06/13/1991 | WO1991008629A1 Wireless in-building telecommunications system for voice and data communications |
| 06/13/1991 | WO1991008628A1 Congestion management based on multiple framing strategy |
| 06/11/1991 | US5023871 Method of controlling the operation of stations in a ring network |
| 06/08/1991 | WO1991009479A1 Communications system |
| 06/05/1991 | EP0430341A2 Method for time-interleaved processing of data words and apparatus for using it |
| 06/05/1991 | EP0430051A2 Byte wide elasticity buffer |
| 06/05/1991 | EP0430034A2 Automatic gain control |
| 06/05/1991 | EP0429888A2 Method for transmitting a digital wide-band signal in a tributary group system over a network of a synchronous digital multiplex hierarchy |
| 06/05/1991 | EP0429786A2 Data synchronizing buffer |
| 06/04/1991 | US5022057 Bit synchronization circuit |
| 06/04/1991 | US5022024 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 06/02/1991 | CA2029784A1 Byte wide elasticity buffer |
| 05/29/1991 | EP0428522A1 Process for switching signals into or out of subdomains of the supplementary signals of transmission modules of a synchronous digital signal hierarchy. |
| 05/28/1991 | US5020131 Transponder frequency offset compensation with recurrently assigned unique words |
| 05/28/1991 | US5020081 Communication link interface with different clock rate tolerance |
| 05/28/1991 | US5020057 Easy detection of head position of information data via reception processing unit in synchronous multiplex transmission apparatus |
| 05/28/1991 | US5020056 Reduction of synchronous fading effects by time hopping of user slots in TDMA frames |