Assignee
HAL COMPUTER SYSTEMS INC
US·37 granted patents·1,630 citations·filing 1990–1996
Top patents by PatentIndex Score
37 records- 0191US5649136AProcessor structure and method for maintaining and restoring precise state at any instruction boundaryHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jul 15, 1997·120 cites·18 claims
- 0290US5644742AProcessor structure and method for a time-out checkpointHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jul 1, 1997·103 cites·16 claims
- 0389US5319590AApparatus for storing "Don't Care" in a content addressable memory cellHAL COMPUTER SYSTEMS INC·Filed 1992·Granted Jun 7, 1994·76 cites·12 claims
- 0488US5266849ATri state buffer circuit for dual power systemHAL COMPUTER SYSTEMS INC·Filed 1992·Granted Nov 30, 1993·53 cites·11 claims
- 0587US5751985AProcessor structure and method for tracking instruction status to maintain precise stateHAL COMPUTER SYSTEMS INC·Filed 1995·Granted May 12, 1998·84 cites·36 claims
- 0687US5469443AMethod and apparatus for testing random access memoryHAL COMPUTER SYSTEMS INC·Filed 1993·Granted Nov 21, 1995·52 cites·15 claims
- 0784US5659721AProcessor structure and method for checkpointing instructions to maintain precise stateHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Aug 19, 1997·68 cites·50 claims
- 0883US5455834AFault tolerant address translation method and systemHAL COMPUTER SYSTEMS INC·Filed 1993·Granted Oct 3, 1995·95 cites·26 claims
- 0982US5673408AProcessor structure and method for renamable trap-stackHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Sep 30, 1997·72 cites·18 claims
- 1081US5651124AProcessor structure and method for aggressively scheduling long latency instructions including load/store instructions while maintaining precise stateHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jul 22, 1997·65 cites·24 claims
- 1181US5528553AMethod and apparatus for testing random access memoryHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jun 18, 1996·43 cites·9 claims
- 1279US5615161AClocked sense amplifier with positive source feedbackHAL COMPUTER SYSTEMS INC·Filed 1996·Granted Mar 25, 1997·48 cites·3 claims
- 1377US5673426AProcessor structure and method for tracking floating-point exceptionsHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Sep 30, 1997·49 cites·8 claims
- 1475US5509038AMulti-path data synchronizer system and methodHAL COMPUTER SYSTEMS INC·Filed 1994·Granted Apr 16, 1996·73 cites·7 claims
- 1575US5121003AZero overhead self-timed iterative logicHAL COMPUTER SYSTEMS INC·Filed 1990·Granted Jun 9, 1992·54 cites·1 claims
- 1674USD344932SComputer workstationHAL COMPUTER SYSTEMS INC·Filed 1992·Granted Mar 8, 1994·18 cites·1 claims
- 1773US5533035AError detection and correction method and apparatusHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jul 2, 1996·36 cites·8 claims
- 1872US5347481AMethod and apparatus for multiplying denormalized binary floating point numbers without additional delayHAL COMPUTER SYSTEMS INC·Filed 1993·Granted Sep 13, 1994·70 cites·12 claims
- 1970US5655115AProcessor structure and method for watchpoint of plural simultaneous unresolved branch evaluationHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Aug 5, 1997·37 cites·73 claims
- 2069US5454094AMethod and apparatus for detecting multiple matches in a content addressable memoryHAL COMPUTER SYSTEMS INC·Filed 1993·Granted Sep 26, 1995·49 cites·12 claims
- 2168US5632028AHardware support for fast software emulation of unimplemented instructionsHAL COMPUTER SYSTEMS INC·Filed 1995·Granted May 20, 1997·55 cites·6 claims
- 2268US5347482AMultiplier tree using nine-to-three addersHAL COMPUTER SYSTEMS INC·Filed 1992·Granted Sep 13, 1994·58 cites·10 claims
- 2364US5644604ADigital phase selector system and methodHAL COMPUTER SYSTEMS INC·Filed 1994·Granted Jul 1, 1997·44 cites·7 claims
- 2461US5740414AMethod and apparatus for coordinating the use of physical registers in a microprocessorHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Apr 14, 1998·42 cites·8 claims
- 2561USD350339SClient server unit for use with a computer networkHAL COMPUTER SYSTEMS INC·Filed 1993·Granted Sep 6, 1994·11 cites·1 claims
- 2660US5513132AZero latency overhead self-timed iterative logic structure and methodHAL COMPUTER SYSTEMS INC·Filed 1993·Granted Apr 30, 1996·26 cites·52 claims
- 2757US5671151ASelf-timed logic circuit having zero-latency overhead and method for designing sameHAL COMPUTER SYSTEMS INC·Filed 1994·Granted Sep 23, 1997·23 cites·19 claims
- 2856US5680566ALookaside buffer for inputting multiple address translations in a computer systemHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Oct 21, 1997·29 cites·7 claims
- 2944US5687353AMerging data using a merge code from a look-up table and performing ECC generation on the merged dataHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Nov 11, 1997·27 cites·2 claims
- 3043US5541528ACMOS buffer circuit having increased speedHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jul 30, 1996·8 cites·27 claims
- 3142US5652580AMethod and apparatus for detecting duplicate entries in a look-up tableHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jul 29, 1997·14 cites·20 claims
- 3241US5638312AMethod and apparatus for generating a zero bit status flag in a microprocessorHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Jun 10, 1997·18 cites·6 claims
- 3335US5570036ACMOS buffer circuit having power-down featureHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Oct 29, 1996·3 cites·5 claims
- 3432US5689673AApparatus and method for controlling instruction flow by using a matrix of transmission gates in super-scaler microprocessor and selectively delaying microprocessor instruction execution based on resource availabilityHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Nov 18, 1997·4 cites·9 claims
- 3528USD361321SWorkstation housingHAL COMPUTER SYSTEMS INC·Filed 1993·Granted Aug 15, 1995·0 cites·1 claims
- 3626US5619153AFast swing-limited pullup circuitHAL COMPUTER SYSTEMS INC·Filed 1995·Granted Apr 8, 1997·2 cites·7 claims
- 3726US5329476AMethod and apparatus for early quotient completion in arithmetic divisionHAL COMPUTER SYSTEMS INC·Filed 1992·Granted Jul 12, 1994·1 cites·20 claims
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