Patents
Sitemap › H04 - Electric communication technique › H04J - Multiplex communication › H04J 3 - Time-division multiplex systems
Patents for H04J 3 - Time-division multiplex systems (63,408)
08/1981
08/05/1981EP0033122A1 Process and circuit arrangement for the transmission of data in a synchronous data network
08/04/1981US4282600 Method for synchronizing sending and receiving devices
08/04/1981US4282493 Redundant clock signal generating circuitry
07/1981
07/29/1981EP0032579A1 Method for the assignment of time-slots of a time division multiplex system with dynamic multiplexers
07/28/1981US4281218 Speech-nonspeech detector-classifier
07/21/1981CA1105586A1 Digital data transmission arrangement
07/14/1981US4279032 Channel bank loop-around test arrangement and method
07/14/1981CA1105144A1 Bit error detecting circuit for use in a digital signal transmission line
07/08/1981EP0031486A2 Apparatus to reduce the effect of a mid-talkspurt freeze-out
07/07/1981US4277843 Closed-loop telecommunication system
07/07/1981US4277645 Multiple variable threshold speech detector
07/01/1981EP0031136A1 Method of transmitting Start stop data in a time division multiplex signal
06/1981
06/30/1981US4276656 Apparatus and method for replacement of a parallel, computer-to-peripheral wire link with a serial optical link
06/30/1981US4276642 Process for the frame synchronization of a time division multiplex system
06/24/1981EP0030551A1 A technique for increasing the rain margin of a communication system.
06/16/1981CA1103376A1 Device for digital multiplexing of plesiochronous trains
06/16/1981CA1103371A1 Digital bit rate converter
06/16/1981CA1103340A1 Time division telecommunications system
06/10/1981EP0030005A1 Circuit arrangement in a communication system with delta modulation
06/03/1981EP0029607A1 Time-division multiplex system
06/03/1981EP0029586A1 Method of clock adjustment for a digital audio signal on a data flow
06/03/1981EP0029585A1 Method of clock adjustment for a digital audio signal on a data flow
06/02/1981US4271509 Supervisory signaling for digital channel banks
06/02/1981US4271508 Method for transmitting data
06/02/1981US4271507 Communication broadcast channel interface
06/02/1981US4271506 High speed data switching node
06/02/1981US4271505 Process communication link
06/02/1981CA1102424A1 Digital communication system for transmitting digital information between a central station and a number of remote stations
05/1981
05/26/1981US4270211 System for synchronizing exchanges of a telecommunications network
05/26/1981US4270204 Multiplexer circuit
05/26/1981US4270203 Timing adjustment circuit for digital switching
05/26/1981US4270202 Modem with automatic port reconfiguration apparatus
05/26/1981US4270183 Data dejittering apparatus
05/26/1981CA1102021A1 Multiplexing speech signals
05/26/1981CA1101970A1 Time division line interface circuit
05/19/1981CA1101569A1 Digital data processing system incorporating high speed analogue sampling gates
05/19/1981CA1101558A1 Method and device for controlling a pcm-codec
05/19/1981CA1101512A1 Device for providing phase synchronism of a transit station in a digital telecommunication network
05/13/1981EP0028307A1 Circuitry for an analog comparator
05/06/1981EP0028007A1 Radio system with synchronisation of the subscribers' equipments
05/05/1981US4266293 Protection control unit for a TDM system
05/05/1981US4266292 Method and apparatus for testing analog-to-digital and digital-to-analog code converters
04/1981
04/29/1981EP0027523A1 Method for maintaining synchronization in a TDMA satellite communication system
04/21/1981US4263670 Microprocessor data modem
04/15/1981EP0027006A2 Decoding terrestrial interface modules bus structure
04/14/1981US4262357 Data processing system incorporating arbiters and selectors to allocate transmissions by multiple devices on a bus
04/14/1981US4262356 Method and system for synchronizing a TDMA communication network comprising a satellite equipped with several directional beam antennas transmitting signals at various frequencies
04/08/1981EP0026635A1 Apparatus and method for data reorganization
04/08/1981EP0026329A2 Communications controller for a time division multiple access satellite communication network
04/08/1981EP0026328A2 Demand assignment method and system for a time division multiple access satellite communication network
04/07/1981US4261051 Time-division-multiplexed exchanger
03/1981
03/31/1981US4259746 Electrical communications system
03/31/1981US4259738 Multiplexer system providing improved bit count integrity
03/31/1981CA1098324A1 No translation available
03/25/1981EP0025577A1 Circuit arrangement for the equalisation of the phase differences between the highway clock on a PCM time division line connected to a PCM exchange and the local clock of this PCM exchange
03/25/1981EP0025465A1 Apparatus for use in telephone communication
03/24/1981US4258434 Bit-by-bit time-division digital switching network
03/24/1981CA1098211A1 Overlap pcm coder/decoder with reaction time compensation
03/18/1981EP0025225A1 Broadcast and alternate message time slot interchanger
03/18/1981EP0025217A1 Clock recovery circuit for burst communications systems
03/17/1981CA1097763A1 Method and apparatus for eliminating conflicts on a communication channel
03/11/1981EP0024708A1 Time-slot multiple for a time division multiplex system for switching digital signals, in particular delta modulated messages
03/11/1981EP0024617A1 Digital telecommunication system
03/03/1981US4254499 Signal transmission system in a digital controller system
02/1981
02/24/1981US4253181 Synchronization arrangements for digital switching centers
02/24/1981US4252999 Signaling and ranging technique for a TDMA satellite communication system
02/24/1981CA1096479A1 Time-division switching system
02/19/1981WO1981000498A1 Digital loop synchronization circuit
02/17/1981US4251881 Centralized automatic gain control circuit
02/17/1981US4251880 Digital loop switch for controlling data information having differing transmission characteristics
02/17/1981US4251801 Mobile data communication system
02/04/1981EP0023331A1 Circuit arrangement for the synchronization of a subordinate device, in particular a digital subscriber station, by a higher order device, in particular a digital switching exchange of a PCM telecommunication network
02/04/1981EP0023297A1 Digital telecommunication system
02/03/1981CA1095193A1 Multiplexing
02/03/1981CA1095191A1 Channel translators for use in time division digital exchangers
01/1981
01/28/1981EP0023105A1 System and method for handling multiplex information
01/27/1981US4247937 Synthesis arrangements for use in digital data transmission systems
01/27/1981US4247936 Digital communications system with automatic frame synchronization and detector circuitry
01/27/1981US4247935 Arrangement for converting start-stop signals into an isochronous signal
01/20/1981CA1094238A2 Data access circuit for a memory array
01/13/1981US4245341 Device for transmitting stochastically coded information
01/13/1981US4245340 Data link for digital channel bank systems
01/08/1981WO1981000034A1 A technique for increasing the rain margin of a communication system
01/07/1981EP0021290A1 Method and circuit arrangement for synchronisation of the transmission of digital information signals
01/07/1981EP0021145A1 Message multiplexing arrangement in a digital data communication system
01/07/1981EP0020379A1 Voltage reversing switch.
01/06/1981US4243930 Method and means for transmitting low speed signals over a PCM framing code
12/1980
12/23/1980US4241444 Arrangement for time-division multiplex PWM data transmission
12/23/1980US4241443 Apparatus for reducing a sampling frequency
12/23/1980CA1092245A1 Synchronisation device "frame"
12/23/1980CA1092203A1 Gain ranging amplifier system
12/16/1980CA1091832A1 Asynchronous pcm common decoding apparatus
12/09/1980US4238851 Packet transmission system
12/02/1980US4237553 Data packet multiplexing in a staggered fashion
12/02/1980US4237552 Time division multiplexed transmission systems for telephone or like signals with frequency band compression
12/02/1980CA1090929A1 Apparatus working with pulse code modulation or similar digitizing techniques and according to time division multiplexing principles for processing information from a number of telephone channels
12/02/1980CA1090888A1 Data buffer retiming circuit
11/1980
11/25/1980US4236245 Ring communication system data packets reusable a variable number of times
11/18/1980US4234952 Conflict resolution by retransmission delay on shared communication medium
11/18/1980CA1089997A1 Apparatus for distinguishing between failures in a digital transmission network
1 ... 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635