Assignee
OPTI INC
US·37 granted patents·3 pending applications·1,614 citations·filing 1991–2006
Top patents by PatentIndex Score
40 records- 0191US5550515AMultiphase clock synthesizer having a plurality of phase shifted inputs to a plurality of phase comparators in a phase locked loopOPTI INC·Filed 1995·Granted Aug 27, 1996·101 cites·26 claims
- 0290US5287481AAutomatic cache flush with readable and writable cache tag memoryOPTI INC·Filed 1992·Granted Feb 15, 1994·136 cites·8 claims
- 0388US5371880ABus synchronization apparatus and methodOPTI INC·Filed 1992·Granted Dec 6, 1994·126 cites·82 claims
- 0487US5469555AAdaptive write-back method and apparatus wherein the cache system operates in a combination of write-back and write-through modes for a cache-based microprocessor systemOPTI INC·Filed 1992·Granted Nov 21, 1995·110 cites·14 claims
- 0586US5710906APredictive snooping of cache memory for master-initiated accessesOPTI INC·Filed 1995·Granted Jan 20, 1998·103 cites·35 claims
- 0681US5790831AVL-bus/PCI-bus bridgeOPTI INC·Filed 1996·Granted Aug 4, 1998·127 cites·33 claims
- 0780US5907857ARefresh-ahead and burst refresh preemption technique for managing DRAM in computer systemOPTI INC·Filed 1997·Granted May 25, 1999·43 cites·19 claims
- 0878US7523245B1Compact ISA-bus interfaceOPTI INC·Filed 2006·Granted Apr 21, 2009·6 cites·1 claims
- 0978US5854638AUnified memory architecture with parallel access by host and video controllerOPTI INC·Filed 1996·Granted Dec 29, 1998·62 cites·18 claims
- 1075US5423019AAutomatic cache flush with readable and writable cache tag memoryOPTI INC·Filed 1993·Granted Jun 6, 1995·58 cites·7 claims
- 1174US5805905AMethod and apparatus for arbitrating requests at two or more levels of priority using a single request lineOPTI INC·Filed 1995·Granted Sep 8, 1998·56 cites·69 claims
- 1274US5426739ALocal bus - I/O Bus Computer ArchitectureOPTI INC·Filed 1992·Granted Jun 20, 1995·79 cites·32 claims
- 1373US5933611ADynamic scheduler for time multiplexed serial busOPTI INC·Filed 1997·Granted Aug 3, 1999·67 cites·61 claims
- 1472US6567875B1USB data serializerOPTI INC·Filed 1999·Granted May 20, 2003·65 cites·22 claims
- 1571US6138177ASystem and method of pin programming and configurationOPTI INC·Filed 1997·Granted Oct 24, 2000·25 cites·7 claims
- 1667US5414827AAutomatic cache flushOPTI INC·Filed 1991·Granted May 9, 1995·41 cites·16 claims
- 1763US5918072ASystem for controlling variable length PCI burst data using a dummy final data phase and adjusting the burst length during transactionOPTI INC·Filed 1995·Granted Jun 29, 1999·41 cites·30 claims
- 1860US6405291B1Predictive snooping of cache memory for master-initiated accessesOPTI INC·Filed 2000·Granted Jun 11, 2002·5 cites·89 claims
- 1958US5813036APredictive snooping of cache memory for master-initiated accessesOPTI INC·Filed 1997·Granted Sep 22, 1998·23 cites·26 claims
- 2058US5768624AMethod and apparatus for employing ping-pong buffering with one level deep buffers for fast DRAM accessOPTI INC·Filed 1996·Granted Jun 16, 1998·34 cites·20 claims
- 2158US5463759AAdaptive write-back method and apparatus wherein the cache system operates in a combination of write-back and write-through modes for a cache-based microprocessor systemOPTI INC·Filed 1995·Granted Oct 31, 1995·29 cites·11 claims
- 2258US5309568ALocal bus designOPTI INC·Filed 1992·Granted May 3, 1994·36 cites·23 claims
- 2357US5822768ADual ported memory for a unified memory architectureOPTI INC·Filed 1996·Granted Oct 13, 1998·22 cites·25 claims
- 2456US6029251AMethod and apparatus for temperature sensingOPTI INC·Filed 1996·Granted Feb 22, 2000·25 cites·14 claims
- 2553US5448742AMethod and apparatus for local memory and system bus refreshing with single-port memory controller and rotating arbitration priorityOPTI INC·Filed 1992·Granted Sep 5, 1995·24 cites·51 claims
- 2652US5881271ASystem and method for clock managementOPTI INC·Filed 1996·Granted Mar 9, 1999·26 cites·11 claims
- 2752US5577214AProgrammable hold delayOPTI INC·Filed 1995·Granted Nov 19, 1996·26 cites·14 claims
- 2848US5900016ASystem for using a cache memory with a write-back architectureOPTI INC·Filed 1997·Granted May 4, 1999·20 cites·40 claims
- 2946US5639979AMode selection circuitry for use in audio synthesis systemsOPTI INC·Filed 1995·Granted Jun 17, 1997·15 cites·26 claims
- 3046US2004139245A1Predictive snooping of cache memory for master-initiated accessesOPTI INC·Filed 2003·Application pending·0 cites
- 3145US5890002ASystem and method for bus master emulationOPTI INC·Filed 1996·Granted Mar 30, 1999·18 cites·13 claims
- 3244US2002059493A1Compact ISA-bus interfaceOPTI INC·Filed 2001·Application pending·0 cites
- 3344US2002069333A1Predictive snooping of cache memory for master-initiated accessesOPTI INC·Filed 2001·Application pending·0 cites
- 3443US5905887AClock frequency detection for computer systemOPTI INC·Filed 1997·Granted May 18, 1999·25 cites·24 claims
- 3538US5968151ASystem and method of positively determining ISA cycle claimingOPTI INC·Filed 1996·Granted Oct 19, 1999·10 cites·21 claims
- 3638US5860113ASystem for using a dirty bit with a cache memoryOPTI INC·Filed 1996·Granted Jan 12, 1999·13 cites·19 claims
- 3737US6098141ACompact ISA-bus interfaceOPTI INC·Filed 1999·Granted Aug 1, 2000·6 cites·25 claims
- 3834US5944807ACompact ISA-bus interfaceOPTI INC·Filed 1996·Granted Aug 31, 1999·4 cites·18 claims
- 3928US5719345AFrequency modulation system and method for audio synthesisOPTI INC·Filed 1995·Granted Feb 17, 1998·4 cites·22 claims
- 4026US5974495AUsing a back-off signal to bridge a first bus to a second busOPTI INC·Filed 1998·Granted Oct 26, 1999·3 cites·15 claims
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