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Class Information
Number: 370/456
Name: Multiplex communications > Channel assignment techniques > Polling > Passing a signal identifying the idle or busy state of a channel (e.g., token passing) > On bus > On ring or loop > Idle or busy signal erasure or frame erasure
Description: Subject matter involving the suppression or elimination of an idle or busy signal to ensure that a proper idle or busy signal is on the loop or ring.

Patents under this class:

Patent Number Title Of Patent Date Issued
8432932 Providing blended synchronous/asynchronous messaging Apr. 30, 2013
8199667 Voice and data exchange over a packet based network Jun. 12, 2012
8046667 Synchronization loss resilient digital communication system using forward erasure correction Oct. 25, 2011
7664035 Apparatus and method for controlling reverse-link data transmission rate during handoff Feb. 16, 2010
7117264 Method and system for peer to peer communication in a network environment Oct. 3, 2006
6947978 Method for geolocating logical network addresses Sep. 20, 2005
6920508 WDM ring network Jul. 19, 2005
6684258 Stackable ring network including burst transmission of data packet Jan. 27, 2004
6512777 Communication method and system involving distributed management of channel allocation Jan. 28, 2003
6400760 Apparatus and method for an error signal compression technique in a fast adaptive equalizer circuit Jun. 4, 2002
6167059 Apparatus and method for transmitting data Dec. 26, 2000
6091740 Bandwidth management method and circuit, communication apparatus, communication system, and dual-queue network unit Jul. 18, 2000
5991831 High speed serial communications link for desktop computer peripherals Nov. 23, 1999
5894470 Floating cell removing device using generic flow control and a method thereof Apr. 13, 1999
5838687 Slot reuse method and arrangement Nov. 17, 1998
5638515 Method for stripping dataframes from the communicating medium in an FDDI communications network Jun. 10, 1997
5537413 Frame removal mechanism for token ring networks Jul. 16, 1996
5504748 Method of erasing slots Apr. 2, 1996
5481538 Frame removal mechanism for token ring networks using one or more start strip delimiter frames or circulation time interval Jan. 2, 1996
5477540 Frame removal mechanism using end delimiter frames for token ring networks Dec. 19, 1995
5461625 Frame stripping method and circuit in FDDI (fiber distributed data interface) bridge system Oct. 24, 1995
5400323 Method for controlling the insertion of stations into FDDI network Mar. 21, 1995
5396493 Local area network bridge apparatus with dedicated packet filtering mechanism Mar. 7, 1995
5377190 Frame removal mechanism using frame count for token ring networks Dec. 27, 1994
5349582 Scheme for source assisted partial destination release of slots in slotted networks Sep. 20, 1994
5280582 No-owner frame and multiple token removal mechanism for token ring networks Jan. 18, 1994
5228034 Ring communication network station Jul. 13, 1993
5163047 Time division multiplex system and method having a time slot reuse capability Nov. 10, 1992
5142530 Multi-frame stripping protocol for token ring networks Aug. 25, 1992
5121388 Time division multiplex system and method having a time slot reuse capability Jun. 9, 1992
4941142 Frame erasing method for token ring networks without last frame indication within the frame format Jul. 10, 1990
4932023 Frame stripping protocol for early token release in a ring communication network Jun. 5, 1990
4575846 Data communication system Mar. 11, 1986
4494233 Method and apparatus for the detection and regeneration of a lost token in a token based data communications network Jan. 15, 1985
4300231 Digital system error correction arrangement Nov. 10, 1981
4288871 Digital loop conferencing signal correction arrangement Sep. 8, 1981

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