Inventor · disambiguated record
Stephen C. Purcell
Also filed as: PURCELL STEPHEN · PURCELL STEPHEN C · PURCELL STEPHEN CLARK
92 granted patents·5 pending applications·3,220 citations·filing 1990–2025
99Inventor score
Files withATI INT SRL19C CUBE MICROSYSTEMS15PASTERNAK SOLUTIONS LLC12PURCELL STEPHEN CLARK11CHROMATIC RES INC10
Top patents by PatentIndex Score
97 records- 0198US7661107B1Method and apparatus for dynamic allocation of processing resourcesADVANCED MICRO DEVICES INC·Filed 2000·Granted Feb 9, 2010·195 cites·13 claims
- 0297US7830379B2Architectures for parallelized intersection testing and shading for ray-tracing renderingCAUSTIC GRAPHICS INC·Filed 2009·Granted Nov 9, 2010·61 cites·28 claims
- 0397US6836815B1Layered crossbar for interconnection of multiple processors and shared memoriesPASTERNAK SOLUTIONS LLC·Filed 2001·Granted Dec 28, 2004·144 cites·16 claims
- 0496US5253078ASystem for compression and decompression of video data using discrete cosine transform and coding techniquesC CUBE MICROSYSTEMS·Filed 1990·Granted Oct 12, 1993·317 cites·13 claims
- 0595US5815646ADecompression processor for video applicationsC CUBE MICROSYSTEMS·Filed 1994·Granted Sep 29, 1998·173 cites·8 claims
- 0694US8121828B2Detecting conditions for transfer of execution from one computer instruction stream to another and executing transfer on satisfaction of the conditionsYATES JR JOHN S·Filed 2004·Granted Feb 21, 2012·86 cites·28 claims
- 0794US7234018B1Layered crossbar for interconnection of multiple processors and shared memoriesPASTERNAK SOLUTIONS LLC·Filed 2004·Granted Jun 19, 2007·74 cites·18 claims
- 0892US8203559B2Architectures for parallelized intersection testing and shading for ray-tracing renderingPETERSON LUKE TILMAN·Filed 2010·Granted Jun 19, 2012·10 cites·18 claims
- 0992US7013456B1Profiling execution of computer programsATI INT SRL·Filed 1999·Granted Mar 14, 2006·188 cites·45 claims
- 1092US5598514AStructure and method for a multistandard video encoder/decoderC CUBE MICROSYSTEMS·Filed 1993·Granted Jan 28, 1997·97 cites·9 claims
- 1192US5379356ADecompression processor for video applicationsC CUBE MICROSYSTEMS·Filed 1993·Granted Jan 3, 1995·126 cites·13 claims
- 1291US5568167ASystem for providing antialiased video overlaysC CUBE MICROSYSTEMS·Filed 1994·Granted Oct 22, 1996·114 cites·21 claims
- 1390US6763452B1Modifying program execution based on profilingATI INT SRL·Filed 1999·Granted Jul 13, 2004·148 cites·36 claims
- 1488US6122442AStructure and method for motion estimation of a digital image by matching derived scoresC CUBE MICROSYSTEMS·Filed 1995·Granted Sep 19, 2000·83 cites·30 claims
- 1588US5598483AMPEG video decompression processorC CUBE MICROSYSTEMS·Filed 1994·Granted Jan 28, 1997·86 cites·4 claims
- 1687US7565475B2Layered crossbar for interconnection of multiple processors and shared memoriesPASTERNAK SOLUTIONS LLC·Filed 2006·Granted Jul 21, 2009·14 cites·20 claims
- 1786US10192350B2Compacting results vectors between stages of graphics processingIMAGINATION TECH LTD·Filed 2017·Granted Jan 29, 2019·3 cites·14 claims
- 1886US5630033AAdaptic threshold filter and method thereofC CUBE MICROSYSTEMS·Filed 1995·Granted May 13, 1997·64 cites·2 claims
- 1982US9633468B2Compacting results vectors between stages of graphics processingIMAGINATION TECH LTD·Filed 2014·Granted Apr 25, 2017·3 cites·20 claims
- 2082US8204596B2Isolation connector for an intravascular implantable medical deviceRANSBURY TERRANCE·Filed 2008·Granted Jun 19, 2012·35 cites·17 claims
- 2182US5870497ADecoder for compressed video signalsC CUBE MICROSYSTEMS·Filed 1992·Granted Feb 9, 1999·75 cites·22 claims
- 2282US5740340A2-dimensional memory allowing access both as rows of data words and columns of data wordsC CUBE MICROSYSTEMS·Filed 1995·Granted Apr 14, 1998·50 cites·13 claims
- 2382US5608888AMethod and apparatus for mapping data of a 2-dimensional space from a linearly addressed memory systemC CUBE MICROSYSTEMS·Filed 1994·Granted Mar 4, 1997·52 cites·8 claims
- 2481US6449671B1Method and apparatus for busing data elementsATI INT SRL·Filed 1999·Granted Sep 10, 2002·97 cites·24 claims
- 2580US8217935B2Apparatus and method for ray tracing with block floating point dataPURCELL STEPHEN·Filed 2008·Granted Jul 10, 2012·12 cites·20 claims
- 2679US6071004ANon-linear digital filters for interlaced video signals and method thereofC CUBE MICROSYSTEMS·Filed 1995·Granted Jun 6, 2000·41 cites·6 claims
- 2778US2025157127A1Immersive virtual reality system using ray tracingIMAGINATION TECH LTD·Filed 2025·Application pending·0 cites
- 2877US7107386B1Memory bus arbitration using memory bank readinessPASTERNAK SOLUTIONS LLC·Filed 2004·Granted Sep 12, 2006·20 cites·21 claims
- 2977US6978462B1Profiling execution of a sequence of events occuring during a profiled execution interval that matches time-independent selection criteria of events to be profiledATI INT SRL·Filed 1999·Granted Dec 20, 2005·77 cites·38 claims
- 3076US6775414B1Variable-length code decoderATI INT SRL·Filed 1999·Granted Aug 10, 2004·37 cites·41 claims
- 3176US5608656AMotion vector encoding circuit and method thereofC CUBE MICROSYSTEMS·Filed 1995·Granted Mar 4, 1997·37 cites·10 claims
- 3275US7552165B2Method and system to implement an improved floating point adder with integrated adding and roundingPURCELL STEPHEN C·Filed 2005·Granted Jun 23, 2009·8 cites·14 claims
- 3375US7426603B2Memory bus arbitration using memory bank readinessPASTERNAK SOLUTIONS LLC·Filed 2006·Granted Sep 16, 2008·6 cites·25 claims
- 3475US6970454B1Sliced crossbar architecture with inter-slice communicationPASTERNAK SOLUTIONS LLC·Filed 2001·Granted Nov 29, 2005·18 cites·32 claims
- 3574US12229868B2Ray tracing in computer graphics using intersection testing at selective resolutionIMAGINATION TECH LTD·Filed 2020·Granted Feb 18, 2025·0 cites·18 claims
- 3671US8086055B2Variable-length code decoderFOGG CHAD E·Filed 2009·Granted Dec 27, 2011·2 cites·17 claims
- 3771US7249214B2Sliced crossbar architecture with no inter-slice communicationPURCELL STEPHEN CLARK·Filed 2005·Granted Jul 24, 2007·3 cites·30 claims
- 3871US5864704AMultimedia processor using variable length instructions with opcode specification of source operand as result of prior instructionCHROMATIC RES INC·Filed 1995·Granted Jan 26, 1999·61 cites·10 claims
- 3970US8381223B2Method and apparatus for dynamic allocation of processing resourcesVAN DYKE KORBIN·Filed 2011·Granted Feb 19, 2013·3 cites·18 claims
- 4070US7275126B2Sliced crossbar architecture with no inter-slice communicationPASTERNAK SOLUTIONS LLC·Filed 2006·Granted Sep 25, 2007·3 cites·22 claims
- 4170US5586070AStructure and method for embedding two small multipliers in a larger multiplierCHROMATIC RES INC·Filed 1994·Granted Dec 17, 1996·53 cites·11 claims
- 4268US7212959B1Method and apparatus for accumulating floating point valuesPURCELL STEPHEN CLARK·Filed 2001·Granted May 1, 2007·16 cites·30 claims
- 4368US6286023B1Partitioned adder tree supported by a multiplexer configurationATI INT SRL·Filed 1998·Granted Sep 4, 2001·52 cites·7 claims
- 4467US6961803B1Sliced crossbar architecture with no inter-slice communicationPASTERNAK SOLUTIONS LLC·Filed 2001·Granted Nov 1, 2005·9 cites·20 claims
- 4566US10789758B2Ray tracing in computer graphics using intersection testing at selective resolutionIMAGINATION TECH LTD·Filed 2018·Granted Sep 29, 2020·0 cites·14 claims
- 4666US8421801B2Ray tracing using ray-specific clippingSALSBURY RYAN R·Filed 2009·Granted Apr 16, 2013·4 cites·23 claims
- 4766US5477543AStructure and method for shifting and reordering a plurality of data bytesCHROMATIC RES INC·Filed 1994·Granted Dec 19, 1995·43 cites·14 claims
- 4865US7574065B2Variable-length code decoderATI INT SRL·Filed 2004·Granted Aug 11, 2009·5 cites·44 claims
- 4965US7072924B1Method and apparatus for generating random numbers for use in a field programmable gate arrayPURCELL STEPHEN CLARK·Filed 2004·Granted Jul 4, 2006·8 cites·18 claims
- 5064US8010618B1One-way transaction tagging in a switch crossbarPURCELL STEPHEN CLARK·Filed 2006·Granted Aug 30, 2011·2 cites·18 claims
Showing the top 50 of 97 patent records by PatentIndex Score.
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