Assignee
TRANSWITCH CORP
US·79 granted patents·7 pending applications·2,604 citations·filing 1988–2013
Top patents by PatentIndex Score
86 records- 0198US4967405ASystem for cross-connecting high speed digital SONET signalsTRANSWITCH CORP·Filed 1988·Granted Oct 30, 1990·206 cites·38 claims
- 0296US6631130B1Method and apparatus for switching ATM, TDM, and packet data through a single communications switch while maintaining TDM timingTRANSWITCH CORP·Filed 2000·Granted Oct 7, 2003·84 cites·34 claims
- 0394US5040170ASystem for cross-connecting high speed digital signalsTRANSWITCH CORP·Filed 1988·Granted Aug 13, 1991·180 cites·81 claims
- 0490US5893162AMethod and apparatus for allocation and management of shared memory with data in memory stored as multiple linked listsTRANSWITCH CORP·Filed 1997·Granted Apr 6, 1999·252 cites·33 claims
- 0590US4998242AVirtual tributary cross connect switch and switch network utilizing the sameTRANSWITCH CORP·Filed 1988·Granted Mar 5, 1991·103 cites·35 claims
- 0688US7401333B2Array of parallel programmable processing engines and deterministic method of operating the sameTRANSWITCH CORP·Filed 2001·Granted Jul 15, 2008·102 cites·15 claims
- 0788US7031256B2Methods and apparatus for implementing LCAS ( link capacity adjustment scheme) sinking with rate based flow controlTRANSWITCH CORP·Filed 2004·Granted Apr 18, 2006·28 cites·10 claims
- 0888US6646983B1Network switch which supports TDM, ATM, and variable length packet traffic and includes automatic fault/congestion correctionTRANSWITCH CORP·Filed 2000·Granted Nov 11, 2003·64 cites·10 claims
- 0988US5615237ATelecommunications framer utilizing state machineTRANSWITCH CORP·Filed 1994·Granted Mar 25, 1997·91 cites·22 claims
- 1087US6754805B1Method and apparatus for configurable multi-cell digital signal processing employing global parallel configurationTRANSWITCH CORP·Filed 2000·Granted Jun 22, 2004·87 cites·16 claims
- 1185US7061935B1Method and apparatus for arbitrating bandwidth in a communications switchTRANSWITCH CORP·Filed 2000·Granted Jun 13, 2006·53 cites·24 claims
- 1284US5265096ASonet alarm indication signal transmission method and apparatusTRANSWITCH CORP·Filed 1991·Granted Nov 23, 1993·68 cites·46 claims
- 1382US6636515B1Method for switching ATM, TDM, and packet data through a single communications switchTRANSWITCH CORP·Filed 2000·Granted Oct 21, 2003·39 cites·30 claims
- 1481US6246682B1Method and apparatus for managing multiple ATM cell queuesTRANSWITCH CORP·Filed 1999·Granted Jun 12, 2001·152 cites·26 claims
- 1581US5257261AMethods and apparatus for concatenating a plurality of lower level SONET signals into higher level sonet signalsTRANSWITCH CORP·Filed 1992·Granted Oct 26, 1993·60 cites·9 claims
- 1678US5142529AMethod and means for transferring a data payload from a first SONET signal to a SONET signal of different frequencyTRANSWITCH CORP·Filed 1990·Granted Aug 25, 1992·53 cites·49 claims
- 1777US6965612B2Methods and apparatus for the hardware implementation of virtual concatenation and link capacity adjustment over SONET/SDH framesTRANSWITCH CORP·Filed 2002·Granted Nov 15, 2005·20 cites·30 claims
- 1877US4914429ASwitch components and multiple data rate non-blocking switch network utilizing the sameTRANSWITCH CORP·Filed 1988·Granted Apr 3, 1990·43 cites·19 claims
- 1976US6636511B1Method of multicasting data through a communications switchTRANSWITCH CORP·Filed 2000·Granted Oct 21, 2003·26 cites·36 claims
- 2075US7020158B2Methods and apparatus for the hardware implementation of virtual concatenation and link capacity adjustment over SONET/SDH framesTRANSWITCH CORP·Filed 2004·Granted Mar 28, 2006·15 cites·20 claims
- 2175US6356561B1Method and apparatus for the fair and efficient transfer of variable length packets using fixed length segmentsTRANSWITCH CORP·Filed 2000·Granted Mar 12, 2002·15 cites·13 claims
- 2272US5191582AMethod and apparatus for the high speed modification of a packet address field of a transmitted packet in a frame relay systemTRANSWITCH CORP·Filed 1991·Granted Mar 2, 1993·66 cites·23 claims
- 2371US7177328B2Cross-connect switch for synchronous networkTRANSWITCH CORP·Filed 2002·Granted Feb 13, 2007·11 cites·18 claims
- 2471US6775237B2Methods and apparatus for burst tolerant excessive bit error rate alarm detection and clearingTRANSWITCH CORP·Filed 2001·Granted Aug 10, 2004·14 cites·9 claims
- 2570US7649843B2Methods and apparatus for controlling the flow of multiple signal sources over a single full duplex ethernet linkTRANSWITCH CORP·Filed 2004·Granted Jan 19, 2010·16 cites·55 claims
- 2670US5331641AMethods and apparatus for retiming and realignment of STS-1 signals into STS-3 type signalTRANSWITCH CORP·Filed 1992·Granted Jul 19, 1994·37 cites·29 claims
- 2769US7714565B2Methods and apparatus for testing delay locked loops and clock skewTRANSWITCH CORP·Filed 2008·Granted May 11, 2010·6 cites·13 claims
- 2867US7349405B2Method and apparatus for fair queueing of data packetsTRANSWITCH CORP·Filed 2003·Granted Mar 25, 2008·17 cites·4 claims
- 2967US7260767B2Methods and apparatus for error correction of transparent GFP (Generic Framing Procedure) superblocksTRANSWITCH CORP·Filed 2004·Granted Aug 21, 2007·18 cites·8 claims
- 3066US6765867B2Method and apparatus for avoiding head of line blocking in an ATM (asynchronous transfer mode) deviceTRANSWITCH CORP·Filed 2002·Granted Jul 20, 2004·19 cites·39 claims
- 3165US7577089B2Methods and apparatus for fast ETHERNET link switchover in the event of a link failureTRANSWITCH CORP·Filed 2006·Granted Aug 18, 2009·5 cites·10 claims
- 3265US6850526B2Methods and apparatus for extending the transmission range of UTOPIA interfaces and UTOPIA packet interfacesTRANSWITCH CORP·Filed 2001·Granted Feb 1, 2005·11 cites·10 claims
- 3364US7680943B2Methods and apparatus for implementing multiple types of network tunneling in a uniform mannerTRANSWITCH CORP·Filed 2003·Granted Mar 16, 2010·19 cites·39 claims
- 3464US5033064AClock dejitter circuit for regenerating DS1 signalTRANSWITCH CORP·Filed 1989·Granted Jul 16, 1991·20 cites·24 claims
- 3563US7558287B2Combined hardware and software implementation of link capacity adjustment scheme (LCAS) in SONET (synchronous optical network) virtual concatenation (VCAT)TRANSWITCH CORP·Filed 2005·Granted Jul 7, 2009·3 cites·12 claims
- 3663US6980513B2Methods and apparatus for the fair allocation of bandwidth among MCR and best effort service connections in an ATM switchTRANSWITCH CORP·Filed 2001·Granted Dec 27, 2005·10 cites·13 claims
- 3763US6134653ARISC processor architecture with high performance context switching in which one context can be loaded by a co-processor while another context is being accessed by an arithmetic logic unitTRANSWITCH CORP·Filed 1998·Granted Oct 17, 2000·50 cites·20 claims
- 3863US5608731AClosed loop clock recovery for synchronous residual time stampTRANSWITCH CORP·Filed 1995·Granted Mar 4, 1997·50 cites·24 claims
- 3962US7355380B2Methods and apparatus for testing delay locked loops and clock skewTRANSWITCH CORP·Filed 2006·Granted Apr 8, 2008·5 cites·9 claims
- 4062US5548833AData independent automatic gain control circuit for telecommunication applicationsTRANSWITCH CORP·Filed 1994·Granted Aug 20, 1996·20 cites·21 claims
- 4161US5297180ADigital clock dejitter circuits for regenerating clock signals with minimal jitterTRANSWITCH CORP·Filed 1991·Granted Mar 22, 1994·24 cites·20 claims
- 4260US6721310B2Multiport non-blocking high capacity ATM and packet switchTRANSWITCH CORP·Filed 2001·Granted Apr 13, 2004·5 cites·16 claims
- 4360US6321331B1Real time debugger interface for embedded systemsTRANSWITCH CORP·Filed 1998·Granted Nov 20, 2001·36 cites·22 claims
- 4459US6351508B1Phase/frequency detector for dejitter applicationsTRANSWITCH CORP·Filed 1999·Granted Feb 26, 2002·26 cites·10 claims
- 4559US5774465AMethod and apparatus for providing multiple multicast communication sessions in an ATM destination switchTRANSWITCH CORP·Filed 1996·Granted Jun 30, 1998·43 cites·20 claims
- 4658US7433871B2Efficient ipv4/ipv6 best matching prefix method and apparatusTRANSWITCH CORP·Filed 2003·Granted Oct 7, 2008·11 cites·8 claims
- 4757US7873938B2Method for constructing a variable bitwidth video processorTRANSWITCH CORP·Filed 2008·Granted Jan 18, 2011·0 cites·16 claims
- 4857US5157655AApparatus for generating a ds-3 signal from the data component of an sts-1 payload signalTRANSWITCH CORP·Filed 1990·Granted Oct 20, 1992·30 cites·20 claims
- 4956US8878590B2Techniques for switching between AC-coupled connectivity and DC-coupled connectivityTRANSWITCH CORP·Filed 2013·Granted Nov 4, 2014·1 cites·20 claims
- 5055US5548534ATwo stage clock dejitter circuit for regenerating an E4 telecommunications signal from the data component of an STS-3C signalTRANSWITCH CORP·Filed 1994·Granted Aug 20, 1996·28 cites·19 claims
Showing the top 50 of 86 patent records by PatentIndex Score.
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