| Patents for H04L 29 - Arrangements, apparatus, circuits or systems, not covered by a single one of groups (330,333) |
|---|
| 06/30/1987 | US4677588 Network interconnection without integration |
| 06/30/1987 | US4677434 Access control system for transmitting data from a central station to a plurality of receiving stations and method therefor |
| 06/30/1987 | US4677319 Electrical circuit for interfacing high frequency signals to the logic levels of any logic family having a switching voltage at the mean of the "0" and "1" voltages |
| 06/30/1987 | CA1223650A1 Data communication method and circuitry |
| 06/24/1987 | EP0225959A1 Method and apparatus for encrypting and decrypting communications between a user and a computer over the telephone network, in vocal form in the direction computer to user and in frequency-coded form in the direction user to computer |
| 06/23/1987 | US4675863 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels |
| 06/23/1987 | US4675862 For use with a digital transmission line |
| 06/23/1987 | CA1223326A1 Data network interface |
| 06/16/1987 | US4674037 Data processing system with an enhanced communication control system |
| 06/10/1987 | EP0224895A2 Data communication method and apparatus using multiple physical data links |
| 06/10/1987 | EP0224681A2 Method for managing obsolescence of data objects |
| 06/09/1987 | US4672574 Data communication system with terminal for displaying the coded stream of data being transmitted |
| 06/09/1987 | US4672572 Protector system for computer access and use |
| 06/09/1987 | US4672510 Package for an expandable remote interface unit |
| 06/09/1987 | US4672459 Communication terminal apparatus with data format conversion capability |
| 06/04/1987 | WO1987003444A1 Digital data interface unit |
| 06/03/1987 | EP0224229A2 Alternate routing arrangement |
| 06/03/1987 | EP0224149A2 Improved synchronous/asynchronous modem |
| 05/19/1987 | US4667191 Serial link communications protocol |
| 05/13/1987 | EP0221708A2 Communication system for the transfer of small digital message blocks and large digital message blocks |
| 05/13/1987 | EP0221589A1 Device for establishing a connection between a telecommunication network and a controllable system, such as a computer system, provided with an access control unit controllable via a separate network terminal |
| 05/13/1987 | EP0207948A4 Internally register-modelled, serially-bussed radio system. |
| 05/12/1987 | CA1221768A1 Signals path control circuitry for a data terminal |
| 05/12/1987 | CA1221766A1 Interface arrangement for a telephone system or the like |
| 05/05/1987 | US4663754 Remote control system for data communication utilizing modems |
| 04/28/1987 | CA1221174A1 Data communication system |
| 04/22/1987 | EP0218859A2 Signal processor communication interface |
| 04/22/1987 | CN86106515A Communication interface for signal processor |
| 04/21/1987 | US4660201 Failure notice system in a data transmission system |
| 04/21/1987 | US4659876 Audiographics communication system |
| 04/21/1987 | CA1220832A1 X.21 switching system |
| 04/21/1987 | CA1220830A1 Transmitting sequence numbers of information in a packet data transmission system |
| 04/16/1987 | EP0112381A4 Geographically distributed multiprocessor time-shared communication processing system. |
| 04/14/1987 | EP0162861A4 Fiber optic coupler/connector device and electronic/fiber optic interface device. |
| 04/08/1987 | EP0217571A2 Data transfer communication system |
| 04/08/1987 | EP0217359A2 Link controller |
| 04/08/1987 | EP0217351A2 Communication control apparatus |
| 04/08/1987 | EP0217308A2 A method of and an arrangement for forwarding a customer order |
| 04/08/1987 | EP0217184A2 Method for communicating with remote units of a distributive data processing system |
| 04/07/1987 | US4656654 Computer assisted graphic teleconferencing method and apparatus |
| 04/07/1987 | US4656643 Line interface circuit |
| 04/01/1987 | EP0216535A2 Integration of computer systems with heterogeneous data bases |
| 03/31/1987 | US4654654 Data network acknowledgement arrangement |
| 03/24/1987 | US4653086 Communication terminal for processing voice and graphical information |
| 03/24/1987 | US4653044 Data communicating method with capability of full-duplex communication over two-wire circuit |
| 03/12/1987 | WO1987001484A1 Communication protocol selection for data processing system |
| 03/10/1987 | US4649473 Flexible data transmission for message based protocols |
| 03/04/1987 | EP0211849A1 Pager system and communication protocol. |
| 03/03/1987 | US4648061 Electronic document distribution network with dynamic document interchange protocol generation |
| 03/03/1987 | US4647912 Coupling discriminator and interface adaptor |
| 02/24/1987 | US4646300 Communications method |
| 02/24/1987 | US4646292 Link controller |
| 02/24/1987 | US4646287 Idle period signalling in a packet switching system |
| 02/24/1987 | CA1218476A1 Digital multi-customer data interface |
| 02/24/1987 | CA1218466A1 End user data stream syntax |
| 02/24/1987 | CA1218464A1 Protocol validation system |
| 02/17/1987 | US4644533 Packet switch trunk circuit queueing arrangement |
| 02/17/1987 | US4644472 Flow control between a data terminal and a host computer system |
| 02/17/1987 | US4644470 Non-unique names for broadcast messages |
| 02/17/1987 | US4644468 Name usage support through distributed processing networks linked by bridges and/or gateways |
| 02/10/1987 | US4642810 Repetitive sequence data transmission system |
| 02/10/1987 | US4642758 File transfer scheduling arrangement |
| 02/10/1987 | US4642630 Method and apparatus for bus contention resolution |
| 02/04/1987 | EP0210797A2 Digital Subscriber controller |
| 02/03/1987 | US4641364 Function coding via digital addresses in a two-way system |
| 02/03/1987 | US4641133 Communication apparatus which alerts operator to preset automatic operation |
| 01/29/1987 | WO1987000713A1 Asynchronous addressable electronic key telephone system |
| 01/28/1987 | EP0209527A1 Method of communications between register-modelled radio devices. |
| 01/27/1987 | US4639891 Signals path control circuitry for a data terminal |
| 01/27/1987 | CA1217281A1 Fault-tolerant communications controller system |
| 01/27/1987 | CA1217263A1 Method and system for an open communication network |
| 01/22/1987 | DE3524430A1 Device for connecting the interfaces, in particular of the V24 type, of independent switching devices of data processing systems |
| 01/20/1987 | US4638356 Apparatus and method for restricting access to a communication network |
| 01/20/1987 | US4638313 Addressing for a multipoint communication system for patient monitoring |
| 01/14/1987 | EP0208604A1 Process and device for the conversion of digital multichannel frames into multipacket frames |
| 01/14/1987 | EP0207948A1 Internally register-modelled, serially-bussed radio system. |
| 01/13/1987 | US4637022 Internally register-modelled, serially-bussed radio system |
| 01/13/1987 | US4637012 Flexible duplex dual port serial link controller |
| 01/13/1987 | US4637011 Fault tolerant dual port serial link controller |
| 01/07/1987 | EP0207595A2 A rate adaptation circuit and method for asynchronous data on digital networks |
| 01/06/1987 | US4635275 Method and apparatus for detecting synchronous or asynchronous data transmission |
| 01/06/1987 | US4635257 Fail safe circuit for multi-signal transmission system |
| 01/06/1987 | US4635255 Digital subscriber controller |
| 01/06/1987 | US4635195 Power control network using reliable communications protocol |
| 12/30/1986 | US4633326 Fascimile communication system with desired image quality |
| 12/30/1986 | EP0205948A2 Distributed data management mechanism |
| 12/30/1986 | EP0205946A2 Flexible data transmission for message based protocols |
| 12/30/1986 | EP0205945A2 Process transparent multi storage mode data transfer and buffer control |
| 12/30/1986 | EP0205467A1 Serial link communications protocol |
| 12/17/1986 | EP0205010A2 Multiple port communications adapter apparatus |
| 12/17/1986 | EP0205007A2 Multiple port service expansion adapter for a communications controller |
| 12/17/1986 | EP0204960A2 Multiple port integrated DMA and interrupt controller and arbitrator |
| 12/17/1986 | EP0204827A1 Communication controller using multiported random access memory |
| 12/16/1986 | CA1215483A1 Device for transmitting and processing data, or for signalling in a set of multiplex lines |
| 12/16/1986 | CA1215472A1 Plural communication channel protocol support systems |
| 12/09/1986 | US4628502 Data and signaling time slot transfer and processing system for a set of multiplex lines |
| 12/03/1986 | EP0203424A2 Method and circuit arrangement for verifying the authorization to gain access to a signal-processing system |
| 12/03/1986 | EP0134217B1 Activation of a transmission link by code sending |
| 12/03/1986 | EP0131591B1 Activation in a digital subscriber connection |
| 12/02/1986 | US4626623 Method and apparatus for telephone access security |