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Class Information
Number: 370/447
Name: Multiplex communications > Channel assignment techniques > Carrier sense multiple access (csma) > Arbitration for access between contending stations
Description: Subject matter wherein an order of importance is assigned to stations or information to resolve situations in which plural stations attempt to gain access to the same communication channel at the same time.










Sub-classes under this class:

Class Number Class Name Patents
370/448 Using weighted back-off timing 261


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Patent Number Title Of Patent Date Issued
5265094 Channel accessing process for a local transmission network configured as a bus system Nov. 23, 1993
5257262 DCME unit capable of processing a wide variety of input information signals Oct. 26, 1993
5250943 GVT-NET--A Global Virtual Time Calculation Apparatus for Multi-Stage Networks Oct. 5, 1993
5249184 Network control system with improved reliability Sep. 28, 1993
5245605 Integration of synchronous and asynchronous traffic on rings Sep. 14, 1993
5241601 Communication system capable of quickly and impartially arbitrating employment of a data bus Aug. 31, 1993
5237695 Bus contention resolution method for network devices on a computer network having network segments connected by an interconnection medium over an extended distance Aug. 17, 1993
5206638 Method and apparatus for exchanging data within a digital communications system Apr. 27, 1993
5175537 Method and apparatus for scheduling access to a CSMA communication medium Dec. 29, 1992
5172374 Access protocol for ultra-wide coherent optical local network for managing various kinds of traffic Dec. 15, 1992
5167019 Apparatus and method for interconnecting a plurality of devices to a single node in a node-limited serial data bus computer network Nov. 24, 1992
5164941 System for implementing improved attempt-and-defer access contention protocol Nov. 17, 1992
5157659 Packet communication system and method of clearing communication bus Oct. 20, 1992
5140585 Star local-area network system Aug. 18, 1992
5124983 Arbitration method and device for transmit mode access to the transmission medium of a distributed switching network Jun. 23, 1992
5107490 Ring-type communication network Apr. 21, 1992
5079759 Multiplex transmission system for vehicles having a failure diagnosis function Jan. 7, 1992
5068848 Multi-access device Nov. 26, 1991
5065153 Contention control system Nov. 12, 1991
5063561 Procedure and apparatus for transmitting binary messages in a serial communication bus Nov. 5, 1991
5058111 Subscriber line interface circuit in a switching system Oct. 15, 1991
5042083 Radio communication system having means for avoiding signal collision Aug. 20, 1991
5016159 Stellate store and broadcast network with collision avoidance May. 14, 1991
5012469 Adaptive hybrid multiple access protocols Apr. 30, 1991
5003536 Communication system Mar. 26, 1991
4984233 Method and apparatus for testing station address in network Jan. 8, 1991
4962378 Multi-user serial bus system Oct. 9, 1990
4945532 Local network testing using carrier sense multiple access and collision detection (CSMA/CD) Jul. 31, 1990
4926419 Priority apparatus May. 15, 1990
4910507 Interface module for connecting collision detection LAN user terminals to different access mode switching network Mar. 20, 1990
4910732 Onechip-computers as network-controller and computer Mar. 20, 1990
4897833 Hierarchical arbitration system Jan. 30, 1990
4885739 Interprocessor switching network Dec. 5, 1989
4864291 SCSI converter Sep. 5, 1989
4860006 Heartbeat collision avoidance method and circuit Aug. 22, 1989
4855997 Priority queuing technique for content induced transaction overlap (CITO) communication system Aug. 8, 1989
4847835 Process and device for the transmission of messages between different stations through a location distribution network Jul. 11, 1989
4827471 Method for bus access for data transmission through a multiprocessor bus May. 2, 1989
4816825 Method and apparatus for power level control in area networks Mar. 28, 1989
4807223 Communications protocol for distributed station network Feb. 21, 1989
4803681 Data transmission control system Feb. 7, 1989
4787082 Data flow control arrangement for local area network Nov. 22, 1988
4785396 Push-pull serial bus coupled to a plurality of devices each having collision detection circuit and arbitration circuit Nov. 15, 1988
4779267 Traffic scheduler for multiple access communication channels Oct. 18, 1988
4774707 Random access communication system with scheduled data transmission and asynchronous contention scheduling Sep. 27, 1988
4757460 Communications network with individualized access delays Jul. 12, 1988
4750165 Method of duplex data transmission using a send-and-wait protocol Jun. 7, 1988
4745596 Multiplex communication system May. 17, 1988
4742349 Method for buffered serial peripheral interface (SPI) in a serial data bus May. 3, 1988
4739324 Method for serial peripheral interface (SPI) in a serial data bus Apr. 19, 1988

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