| Patents for H04L 12 - Data switching networks (448,999) |
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| 02/20/1991 | EP0412991A1 High capacity communication system utilizing or-type channels |
| 02/20/1991 | EP0412966A1 Packet switching network |
| 02/19/1991 | US4995035 Centralized management in a computer network |
| 02/19/1991 | US4995032 Label-switching and control interface for asynchronous fast-packet switching |
| 02/19/1991 | US4994985 Methods of appending a reply in an electronic mail system |
| 02/19/1991 | US4994690 Split level bus |
| 02/19/1991 | CA1280496C Virtual pbx call processing method |
| 02/19/1991 | CA1280495C Distributed packet switching system |
| 02/19/1991 | CA1280494C Control information communication arrangement for a distributed controlswitching system |
| 02/19/1991 | CA1280485C Apparatus for serial data transmission |
| 02/19/1991 | CA1280484C Link controller |
| 02/14/1991 | DE3926669A1 Packet switching for async. transfer mode information blocks - coupling blocks contg. control and information signal bits via reverse coupling bays with multipled stages |
| 02/13/1991 | EP0412692A1 Dynamic graphical analysis of network data |
| 02/13/1991 | EP0412574A2 Antenna for watch pager system |
| 02/13/1991 | EP0412406A2 Smoothing filter for preamble length processing in a FDDI network |
| 02/13/1991 | EP0412343A2 Switching network and module for an ATM-system |
| 02/13/1991 | EP0412232A2 Apparatus and method for providing high performance communication between software processes |
| 02/13/1991 | EP0412220A1 Network transceiver |
| 02/12/1991 | US4993024 System and process for controlling the flow of either data packets or channel signals in an asynchronous time multiplexer |
| 02/12/1991 | US4993023 Apparatus for providing multiple controller interfaces to a standard digital modem and including multiplexed contention resolution |
| 02/12/1991 | US4993018 Self-routing switching system with multiple link connections between incoming and outgoing lines |
| 02/12/1991 | US4993016 Network control arrangement for processing a plurality of connection requests |
| 02/12/1991 | US4993015 Automatic fault recovery in a packet network |
| 02/12/1991 | CA1280217C Method and apparatus for utilization of dual latency stations for performance improvement of token ring networks |
| 02/12/1991 | CA1280216C Time slot protocol in the transmission of data in a data processing network |
| 02/10/1991 | CA2022838A1 Smoothing filter |
| 02/06/1991 | EP0412035A1 Method for selecting a leader terminal in a token ring system |
| 02/06/1991 | EP0411815A2 High-speed packet data network using serially connected packet and circuit switches |
| 02/06/1991 | EP0411674A2 Call control system in ATM switch |
| 02/06/1991 | EP0411553A2 Data communication system |
| 02/06/1991 | EP0138949B1 A wideband digital switching network |
| 02/06/1991 | CN1049066A Adaptive routing in parallel computing system |
| 02/06/1991 | CN1011561B Base station for wireless digital telephone system |
| 02/05/1991 | US4991174 Fault diagnostic distributed processing method and system |
| 02/05/1991 | US4991172 Between asynchronous read/write FIFO |
| 02/05/1991 | US4991171 Broadcast packet switch network |
| 02/05/1991 | CA1279933C2 Local area network for digital data processing system |
| 02/05/1991 | CA1279917C Method and apparatus for packet-switched network communications measurement matrix display |
| 01/31/1991 | DE4018687A1 Data block transmission in synchronous digital multiplex hierarchy - involves selection of reference byte before first filling with use of block indicator and recovered clock |
| 01/30/1991 | EP0410873A1 Device for interconnecting and extending busses in an information transmission network |
| 01/30/1991 | EP0410860A1 Interface for connecting a computer bus to a fibre-optic ring network |
| 01/30/1991 | EP0410636A2 An improved communications system |
| 01/30/1991 | EP0410568A2 Adaptive routing in networks |
| 01/30/1991 | EP0410139A2 ATM switching system having dual ATM switch structure |
| 01/30/1991 | EP0409841A1 Switching system |
| 01/30/1991 | EP0409832A1 Communication switching element. |
| 01/30/1991 | EP0335877A4 Method for transmitting data in packet switching networks |
| 01/30/1991 | EP0226632B1 A packet switching network with multiple packet destinations |
| 01/30/1991 | CN1011464B Baseband local area network using ordinary telephone wiring |
| 01/29/1991 | US4989204 High throughput communication method and system for a digital mobile station when crossing a zone boundary during a session |
| 01/29/1991 | US4989203 Communication system |
| 01/29/1991 | US4989081 Home-bus-information system |
| 01/29/1991 | US4988990 Dual master implied token communication system |
| 01/29/1991 | US4988989 Master-slave communication system for stations having timer means |
| 01/29/1991 | US4988890 Signal transmission and receiving system with looped transmission line |
| 01/29/1991 | CA1279728C Method for serial data peripheral interface (spi) in a serial data bus |
| 01/29/1991 | CA1279719C Alternate routing |
| 01/29/1991 | CA1279718C Self-routing switch |
| 01/24/1991 | WO1991001022A1 Interaction network system with electronic organizational actors |
| 01/24/1991 | DE3923169A1 Connection overload interruption for centrally controlled exchange - has warning sound or message delayed from start of call interruption |
| 01/23/1991 | EP0409578A1 Data communication method and system with cyclic sequence of acknowledgements |
| 01/23/1991 | EP0409539A2 Frame routing method for communication networks |
| 01/23/1991 | EP0408936A2 Method for detecting a character pattern in a data stream |
| 01/23/1991 | EP0408740A1 A data transmission system |
| 01/23/1991 | EP0408561A1 Communication adapter |
| 01/23/1991 | CN1011375B Digital telephone switching system having message switch with address translation |
| 01/22/1991 | US4987571 Data communication system with prioritized periodic and aperiodic messages |
| 01/22/1991 | US4987536 Communication system for sending an identical routing tree to all connected nodes to establish a shortest route and transmitting messages thereafter |
| 01/22/1991 | CA1279406C Token passing network |
| 01/22/1991 | CA1279392C Packet switching system arranged for congestion control |
| 01/22/1991 | CA1279385C Deterministic access protocol local area network |
| 01/19/1991 | CA2011934A1 Method and apparatus for source routing bridging |
| 01/17/1991 | DE3922907A1 Interface tester for different async. data communications systems - has various interface, and can detect and analyse errors |
| 01/16/1991 | EP0408236A2 Video transmission and control system utilizing internal telephone lines |
| 01/16/1991 | EP0408188A2 Compressed prefix matching database searching |
| 01/16/1991 | EP0408086A2 Watch pager system |
| 01/16/1991 | EP0408061A2 Packet concentrator and packet switching system |
| 01/16/1991 | EP0407997A2 Data communications system using a fiber distributed data exchange interface |
| 01/16/1991 | CN1011277B Protocols for very high-speed optical lens |
| 01/15/1991 | USRE33521 Method and apparatus for detecting a faulty computer in a multicomputer system |
| 01/15/1991 | US4985903 Source of direct supply voltage |
| 01/15/1991 | US4985892 Baseband local area network using ordinary telephone wiring |
| 01/15/1991 | US4985889 Data packet switching |
| 01/15/1991 | US4985888 Communications network |
| 01/15/1991 | US4985886 Transmission line branching device |
| 01/15/1991 | CA1279132C Ring transmission system |
| 01/15/1991 | CA1279118C Bus structure having constant electrical characteristics |
| 01/15/1991 | CA1279115C Thin-wire multiport repeater |
| 01/12/1991 | CA2019730A1 Compressed prefix matching database searching |
| 01/10/1991 | WO1991000662A1 Communication system |
| 01/09/1991 | EP0407279A1 Communication network between user equipment |
| 01/09/1991 | EP0407161A2 Packet communication system |
| 01/09/1991 | EP0407078A2 Efficient connection arrangement and communication method for multihop networks |
| 01/09/1991 | EP0406925A1 Method of combining two data cell streams into a single data cell stream in an ATD multiplexer |
| 01/09/1991 | EP0406842A2 Packet switch network for communication using packet having virtual connection identifier VCI |
| 01/09/1991 | EP0406759A2 System for controlling data transmission in an ATM switching network |
| 01/09/1991 | EP0357719A4 Marketing research system for obtaining retail data |
| 01/08/1991 | US4984264 Call admission control method and cell flow monitoring method in the same method |
| 01/08/1991 | US4984233 Method and apparatus for testing station address in network |
| 01/08/1991 | US4983010 System for connecting light waveguide buses and coaxial cable buses |