Inventor · disambiguated record
Ahmad Zandi
Also filed as: ZANDI AHMAD
34 granted patents·2 pending applications·2,747 citations·filing 1992–2008
98Inventor score
Top patents by PatentIndex Score
36 records- 0198US7634145B2Compression and decompression with wavelet style and binary style including quantization by device-dependent parserRICOH KK·Filed 2006·Granted Dec 15, 2009·52 cites·65 claims
- 0298US5748786AApparatus for compression using reversible embedded waveletsRICOH KK·Filed 1994·Granted May 5, 1998·257 cites·29 claims
- 0397US5710562AMethod and apparatus for compressing arbitrary dataRICOH KK·Filed 1995·Granted Jan 20, 1998·157 cites·81 claims
- 0496US5867602AReversible wavelet transform and embedded codestream manipulationRICOH CORP·Filed 1995·Granted Feb 2, 1999·284 cites·72 claims
- 0596US5561421AAccess method data compression with system-built generic dictionariesIBM·Filed 1994·Granted Oct 1, 1996·183 cites·89 claims
- 0695US6757437B1Compression/decompression using reversible embedded waveletsRICOH KK·Filed 2001·Granted Jun 29, 2004·89 cites·19 claims
- 0795US6195465B1Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamRICOH KK·Filed 1995·Granted Feb 27, 2001·217 cites·61 claims
- 0895US5966465ACompression/decompression using reversible embedded waveletsRICOH CORP·Filed 1996·Granted Oct 12, 1999·226 cites·43 claims
- 0995US5881176ACompression and decompression with wavelet style and binary style including quantization by device-dependent parserRICOH CORP·Filed 1996·Granted Mar 9, 1999·174 cites·16 claims
- 1094US7492955B2Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamRICOH KK·Filed 2006·Granted Feb 17, 2009·15 cites·6 claims
- 1193US5471207ACompression of palettized images and binarization for bitwise coding of M-ary alphabets thereforRICOH KK·Filed 1994·Granted Nov 28, 1995·159 cites·24 claims
- 1292US6873734B1Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamRICOH KK·Filed 2000·Granted Mar 29, 2005·38 cites·23 claims
- 1390US6058215AReversible DCT for lossless-lossy compressionRICOH KK·Filed 1997·Granted May 2, 2000·80 cites·38 claims
- 1488US7068849B2Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamRICOH CORP·Filed 2002·Granted Jun 27, 2006·24 cites·18 claims
- 1586US5546080AOrder-preserving, fast-decoding arithmetic coding arithmetic coding and compression method and apparatusIBM·Filed 1994·Granted Aug 13, 1996·83 cites·9 claims
- 1686US5270712ASort order preserving method for data storage compressionIBM·Filed 1992·Granted Dec 14, 1993·59 cites·7 claims
- 1785US7016545B1Reversible embedded wavelet system implementationRICOH KK·Filed 2000·Granted Mar 21, 2006·24 cites·25 claims
- 1884US5815097AMethod and apparatus for spatially embedded codingRICOH KK·Filed 1996·Granted Sep 29, 1998·83 cites·53 claims
- 1983US7313286B2Reversible DCT for lossless-lossy compressionRICOH KK·Filed 2004·Granted Dec 25, 2007·22 cites·5 claims
- 2083US7215820B2Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamRICOH KK·Filed 2003·Granted May 8, 2007·16 cites·42 claims
- 2182US7076104B1Compression and decompression with wavelet style and binary style including quantization by device-dependent parserRICOH CORP·Filed 1999·Granted Jul 11, 2006·55 cites·17 claims
- 2281US6222941B1Apparatus for compression using reversible embedded waveletsRICOH KK·Filed 1996·Granted Apr 24, 2001·52 cites·61 claims
- 2380US8473907B1Computer programming adaptive analysisZANDI AHMAD·Filed 2008·Granted Jun 25, 2013·25 cites·8 claims
- 2480US6006226AMethod and system for document image feature extractionRICOH KK·Filed 1997·Granted Dec 21, 1999·77 cites·27 claims
- 2580US5999656AOverlapped reversible transforms for unified lossless/lossy compressionRICOH KK·Filed 1997·Granted Dec 7, 1999·46 cites·57 claims
- 2677US6008745AVariable length decoding using lookup tablesSUN MICROSYSTEMS INC·Filed 1998·Granted Dec 28, 1999·64 cites·46 claims
- 2776US6466699B2Reversible DCT for lossless—lossy compressionRICOH KK·Filed 1999·Granted Oct 15, 2002·38 cites·16 claims
- 2873US7167592B2Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamRICOH KK·Filed 2002·Granted Jan 23, 2007·7 cites·34 claims
- 2973US6219458B1Overlapped reversible transforms for unified lossless/lossy compressionRICOH KK·Filed 1999·Granted Apr 17, 2001·33 cites·20 claims
- 3071US5731988AMethod and apparatus for reversible color conversionRICOH KK·Filed 1995·Granted Mar 24, 1998·38 cites·46 claims
- 3164US6216145B1Overlapped reversible transforms for unified lossless/lossy compressionRICOH KK·Filed 1999·Granted Apr 10, 2001·20 cites·19 claims
- 3263US6792155B2Reversible DCT for lossless—lossy compressionRICOH KK·Filed 2001·Granted Sep 14, 2004·6 cites·4 claims
- 3356US7418142B2Method for compression using reversible embedded waveletsRICOH KK·Filed 1997·Granted Aug 26, 2008·29 cites·46 claims
- 3455US6195466B1Reversible DCT for lossless-lossy compressionRICOH KK·Filed 1999·Granted Feb 27, 2001·15 cites·2 claims
- 3551US2006222254A1Method and apparatus for compression using reversible wavelet transforms and an embedded codestreamZANDI AHMAD·Filed 2006·Application pending·0 cites
- 3640US2007006160A1Software digital fingerprintKUNZ SUE·Filed 2006·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →