Patents for H04L 29 - Arrangements, apparatus, circuits or systems, not covered by a single one of groups (330,333) |
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06/06/1990 | CN1042814A Method for sending plurality of data channels over single communications line |
06/06/1990 | CN1042786A Parallel microcomputer of user digital terminal with digital network of centralization service |
06/05/1990 | US4931924 Data transfer speed control apparatus capable of varying speed of data transfer between devices having different transfer speeds |
06/05/1990 | US4931790 Digital remote control method |
06/05/1990 | US4931250 Multimode modem |
06/05/1990 | CA1270066A1 Method of propagating resource information in a computer network |
05/31/1990 | WO1990006027A1 Lan with dynamically selectable multiple operational capabilities |
05/30/1990 | EP0370064A1 A method for transmitting high-definition television over low-bandwidth channels |
05/29/1990 | CA1269757A1 Distributed control of alias name usage in networks |
05/29/1990 | CA1269734A1 Fault tolerant dual port serial link controller |
05/23/1990 | EP0368979A1 Process for transmitting data between entities capable of emitting and/or receiving data. |
05/22/1990 | US4928305 Intelligent modem with manual escape switch |
05/17/1990 | WO1990005422A2 Digital image processing and display system |
05/16/1990 | EP0368537A2 Reliable recovery of data in encoder/decoder |
05/16/1990 | EP0368055A2 Method for sending a plurality of data channels over a single communications line |
05/15/1990 | US4926414 Control point session synchronization in a network |
05/15/1990 | US4926375 Multiple nodes broadcast communication method with receiver identification by bit position in transferred massage |
05/15/1990 | US4925294 Method to convert two dimensional motion pictures for three-dimensional systems |
05/09/1990 | EP0367460A1 Optical fiber bus controller |
05/09/1990 | EP0366866A2 A packet switch protocol and apparatus as for a parallel processing machine |
05/09/1990 | EP0366788A1 D channel monitor |
05/09/1990 | CN1042035A Feature negotiation protocol and dynamically adjustable retraming sequence for high speed half duplex method |
05/08/1990 | US4924520 Method for initializing security data communication |
05/08/1990 | US4924493 Method for monitoring call setup communications |
05/08/1990 | US4924479 Communication control system |
05/08/1990 | CA1268845A1 Interface circuit for interconnecting circuit switched and packet switched systems |
05/03/1990 | WO1990004894A1 Method and apparatus for preventing transmission of data packets with a greater intensity than a predetermined value on any one of a number of channels on a common transmission link |
05/02/1990 | EP0366635A1 Method and apparatus for preventing transmission of data packets with a greater intensity than a predetermined value on anyone of a number of channels on a common transmission link |
05/02/1990 | EP0366036A2 Memory management in packet data mode systems |
05/02/1990 | EP0365649A1 Apparatus and method for mapping the connectivity of communications systems with multiple communications paths |
05/02/1990 | EP0135499B1 A method for achieving multiple processor agreement optimized for no faults |
05/01/1990 | US4922486 User to network interface protocol for packet communications networks |
05/01/1990 | CA1268532A1 Method and apparatus for providing variable reliability in a telecommunication switching system |
04/28/1990 | CA2001677A1 Method and apparatus for preventing transmission of data packets with a greater intensity than a predetermined value on anyone of a number of channels on common transmission link |
04/25/1990 | EP0364866A2 Feature negotiation protocol and dynamically adjustable retraining sequence for a high speed half duplex modem |
04/25/1990 | CN1007760B Multi-cpu interlock |
04/24/1990 | CA1268274A1 Portable communication terminal for remote database query |
04/24/1990 | CA1268272A1 Access circuit diagnostics for integrated services digital network |
04/18/1990 | EP0364170A2 High speed serial data link |
04/11/1990 | EP0363173A2 Communication processors for layered protocols |
04/10/1990 | US4916694 Packet network timing analyzer |
04/10/1990 | US4916607 Computer for executing a process control program and a communication control program in parallel |
04/10/1990 | CA1267703A1 System for controlling operation mode of modulator/demodulator |
04/05/1990 | WO1990003701A1 Method of matching operation mode of a modem |
04/04/1990 | EP0360917A1 Method and circuit arrangement for controlling a serial interface circuit |
04/03/1990 | US4914688 Modem system |
04/03/1990 | US4914653 Inter-processor communication protocol |
04/03/1990 | US4914619 Apparatus and method for interconnecting an application of a transparent services access facility to remote source |
04/03/1990 | US4914583 Method of indicating processes resident within a cell of a data processing system |
04/03/1990 | US4914571 Locating resources in computer networks |
03/28/1990 | EP0360723A2 Method of enhancing communication setup between a commmunication station and a telecommunications network |
03/28/1990 | EP0360722A2 Method for monitoring call setup commmunications |
03/28/1990 | EP0360489A2 Protection against loss or corruption of data upon switchover of a replicated system |
03/28/1990 | EP0360478A2 A packet switching architecture providing encryption across packets |
03/28/1990 | CN1040883A Modem with improved digital signal processor |
03/27/1990 | US4912705 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
03/22/1990 | WO1990003005A1 Entity management system |
03/22/1990 | EP0441798A1 Entity management system for a distributed computer system |
03/20/1990 | US4910777 Packet switching architecture providing encryption across packets |
03/20/1990 | US4910754 Initialization and synchronization method for a two-way communication link |
03/20/1990 | US4910733 Rendezvous network protocol with reduced bandwidth and processor time |
03/20/1990 | US4910610 Facsimile communication system |
03/20/1990 | US4910507 Interface module for connecting collision detection LAN user terminals to different access mode switching network |
03/20/1990 | US4910474 Method and apparatus for generating phase and amplitude modulated signals |
03/14/1990 | EP0358441A2 Communication apparatus |
03/14/1990 | EP0358293A2 Local area system transport |
03/14/1990 | EP0358292A2 Remote boot |
03/13/1990 | US4908823 Hybrid communications link adapter incorporating input/output and data communications technology |
03/08/1990 | WO1990002377A1 Serial data interface |
03/07/1990 | EP0357471A1 Interface circuit for a serial link or current loop |
03/07/1990 | EP0356873A1 Serial data interface |
03/06/1990 | US4907254 Power source system for data terminal equipment |
02/28/1990 | EP0355797A2 Signalling apparatus for use in an ATM switching system |
02/28/1990 | EP0203151B1 Loop around data channel unit |
02/28/1990 | EP0203150B1 Method and apparatus for looping around a digital transmission line at a channel unit |
02/28/1990 | CN1007032B Method of duplex data transmission using send-and-wait protocol |
02/27/1990 | US4905282 Feature negotiation protocol and dynamically adjustable retraining sequence for a high speed half duplex modem |
02/27/1990 | US4905229 Local area communication network |
02/27/1990 | US4905138 Meta-interpreter |
02/22/1990 | WO1990001739A1 Network interface |
02/21/1990 | EP0355078A2 Hand-held tester for the input/output ports of a data processor |
02/20/1990 | US4903016 Communication control unit |
02/13/1990 | US4901348 Data transmission security arrangement for a plurality of data stations sharing access to a communication network |
02/08/1990 | DE3826774A1 Netzwerkschnittstelle Network interface |
02/07/1990 | EP0353859A2 Network transit prevention |
02/06/1990 | US4899036 Transaction system |
01/30/1990 | US4897874 Metropolitan area network arrangement for serving virtual data networks |
01/30/1990 | CA1265255A1 Application specific integrated circuit |
01/23/1990 | US4896319 Identification and authentication of end user systems for packet communications network services |
01/23/1990 | CA1264875A1 Method and device for transmitting digital data in the form of frame organized messages |
01/17/1990 | EP0350838A2 Communication system |
01/16/1990 | US4894847 High speed half duplex modem with fast turnaround protocol |
01/16/1990 | US4894826 Message generating communication apparatus having a message preamble format allowing parts of certain messages to be ignored |
01/16/1990 | US4894822 Fast packetized data delivery for digital networks |
01/16/1990 | US4894781 Communication control system |
01/11/1990 | WO1990000332A1 An interface unit |
01/10/1990 | EP0350421A2 Generalized data stream transform service |
01/10/1990 | EP0350402A1 Personal computer integrating a digital ISDN subscriber terminal |
01/09/1990 | US4893307 Method and apparatus for linking SNA terminals to an SNA host over a packet switched communications network |
01/09/1990 | US4893199 Digital signal recording apparatus with a digital subdata converting capability |