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Class Information
Number: 370/445
Name: Multiplex communications > Channel assignment techniques > Carrier sense multiple access (csma)
Description: Subject matter having a reservation scheme for reaching a communication medium in which a station is assigned a carrier; the idle state of a communication channel is determined by sensing the presence or absence of a carrier signal on the channel.

Sub-classes under this class:

Class Number Class Name Patents
370/447 Arbitration for access between contending stations 744
370/446 Using a star coupler 94

Patents under this class:

Patent Number Title Of Patent Date Issued
5297143 Network communication protocol including a reliable multicasting technique Mar. 22, 1994
5293375 Repeater interface controller with a partitioning port state machine Mar. 8, 1994
5293571 Receipt acknowledgement method in multiplex transmission Mar. 8, 1994
5289461 Interconnection method for digital multimedia communications Feb. 22, 1994
5287356 Automatic termination of loop circulating messages Feb. 15, 1994
5276703 Wireless local area network communications system Jan. 4, 1994
5274841 Methods for polling mobile users in a multiple cell wireless network Dec. 28, 1993
5267237 Collison detection and signaling circuit Nov. 30, 1993
5260933 Acknowledgement protocol for serial data network with out-of-order delivery Nov. 9, 1993
5251211 Multiplex transmission system for automotive vehicles Oct. 5, 1993
5249183 Interfacing unit for local area networks Sep. 28, 1993
5231634 Medium access protocol for wireless LANs Jul. 27, 1993
5229993 Control of access through local carrier sensing for high data rate networks and control of access of synchronous messages through circulating reservation packets Jul. 20, 1993
5227778 Service name to network address translation in communications network Jul. 13, 1993
5214647 CSMA type communication system May. 25, 1993
5197066 Collision detection circuit for communications network Mar. 23, 1993
5187605 Optical transceiver Feb. 16, 1993
5187709 Fault tolerant serial communications network Feb. 16, 1993
5179341 System and method for detecting an improper termination and a short circuit in a network Jan. 12, 1993
5175730 Communication control unit Dec. 29, 1992
5162791 Collision detection using code rule violations of the Manchester code Nov. 10, 1992
5155727 Method of coupling a data transmitter unit to a signal line and apparatus for performing the invention Oct. 13, 1992
5142526 Transmission failure diagnosis apparatus Aug. 25, 1992
5124982 Multiple port medium attachment unit for a network Jun. 23, 1992
5107491 Collision filter Apr. 21, 1992
5079766 Access unit to a local network transmission medium Jan. 7, 1992
5077732 LAN with dynamically selectable multiple operational capabilities Dec. 31, 1991
5057829 Computer networking apparatus Oct. 15, 1991
5048009 Broadcast station locator for a local area network Sep. 10, 1991
5043722 Detector for colliding signals in asynchronous communication Aug. 27, 1991
5040175 Wireless information transmission system Aug. 13, 1991
5027348 Method and apparatus for dynamic data block length adjustment Jun. 25, 1991
5023870 Interface circuit for data transmission between a microprocessor system and a time-division-multiplexed system Jun. 11, 1991
5022046 Narrowband/wideband packet data communication system Jun. 4, 1991
5012467 Method and apparatus for collision detection in a local area network transceiver Apr. 30, 1991
4987571 Data communication system with prioritized periodic and aperiodic messages Jan. 22, 1991
4979168 Dynamic sensing point CSMA packet switching controller Dec. 18, 1990
4975907 Method and device for the asynchronous transmission of data by packets Dec. 4, 1990
4973954 Network user for maintaining data and energy transmission Nov. 27, 1990
4965792 Collision/detection single node controlled local area network Oct. 23, 1990
4959829 Dual cable communication system Sep. 25, 1990
4941143 Protocol for network having a plurality of intelligent cells Jul. 10, 1990
4939510 Broadband communications RF packet collision detection Jul. 3, 1990
4939725 Multiplex transmission system Jul. 3, 1990
4920533 CATV subscriber terminal transmission control Apr. 24, 1990
4918746 Communication system with mobile stations Apr. 17, 1990
4916694 Packet network timing analyzer Apr. 10, 1990
4901311 Communication method and equipment therefor Feb. 13, 1990
4896151 Simultaneous communication method and system Jan. 23, 1990
4888763 Method and apparatus for detecting the collision of data packets utilizing a preassigned transceiver code in the preamble Dec. 19, 1989

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