Inventor · disambiguated record
David L. Hecht
Also filed as: HECHT DAVID · HECHT DAVID L
60 granted patents·3 pending applications·5,545 citations·filing 1976–2009
99Inventor score
Top patents by PatentIndex Score
63 records- 0198US5949055AAutomatic geometric image transformations using embedded signalsXEROX CORP·Filed 1997·Granted Sep 7, 1999·377 cites·18 claims
- 0298US5486686AHardcopy lossless data storage and communications for electronic document processing systemsXEROX CORP·Filed 1992·Granted Jan 23, 1996·621 cites·19 claims
- 0398US5385803AAuthentication processXEROX CORP·Filed 1993·Granted Jan 31, 1995·110 cites·24 claims
- 0498US5221833AMethods and means for reducing bit error rates in reading self-clocking glyph codesXEROX CORP·Filed 1991·Granted Jun 22, 1993·331 cites·6 claims
- 0597US6970259B1Systems and methods for forgery detection and deterrence of printed documentsXEROX CORP·Filed 2000·Granted Nov 29, 2005·164 cites·26 claims
- 0697US5449895AExplicit synchronization for self-clocking glyph codesXEROX CORP·Filed 1993·Granted Sep 12, 1995·309 cites·7 claims
- 0797US5128525AConvolution filtering for decoding self-clocking glyph shape codesXEROX CORP·Filed 1990·Granted Jul 7, 1992·311 cites·4 claims
- 0896US6208771B1Methods and apparatus for robust decoding of glyph address carpetsXEROX PARC·Filed 1998·Granted Mar 27, 2001·231 cites·48 claims
- 0995US7647555B1System and method for video access from notes or summariesFUJI XEROX CO LTD·Filed 2000·Granted Jan 12, 2010·96 cites·20 claims
- 1095US6182901B1Orientational disambiguation for self-clocking glyph codesXEROX CORP·Filed 1995·Granted Feb 6, 2001·248 cites·5 claims
- 1194US5901224AQuasi-reprographics with variable embedded data with applications to copyright management, and distribution controlXEROX CORP·Filed 1996·Granted May 4, 1999·194 cites·18 claims
- 1294US5631686AMethod to provide optimum optical contrast for registration mark detectionXEROX CORP·Filed 1993·Granted May 20, 1997·55 cites·4 claims
- 1393US6783069B1Method and apparatus for implementing a camera mouseXEROX CORP·Filed 2000·Granted Aug 31, 2004·91 cites·28 claims
- 1493US5937110AParallel propagating embedded binary sequences for characterizing objects in N-dimensional address spaceXEROX CORP·Filed 1996·Granted Aug 10, 1999·147 cites·9 claims
- 1593US5521372AFraming codes for robust synchronization and addressing of self-clocking glyph codesXEROX CORP·Filed 1995·Granted May 28, 1996·192 cites·6 claims
- 1693US5449896ARandom access techniques for use with self-clocking glyph codesXEROX CORP·Filed 1993·Granted Sep 12, 1995·191 cites·3 claims
- 1792US6310988B1Methods and apparatus for camera penXEROX PARC·Filed 1998·Granted Oct 30, 2001·155 cites·21 claims
- 1892US5453605AGlobal addressability for self-clocking glyph codesXEROX CORP·Filed 1993·Granted Sep 26, 1995·156 cites·10 claims
- 1991US6641053B1Foreground/background document processing with dataglyphsXEROX CORP·Filed 2002·Granted Nov 4, 2003·87 cites·30 claims
- 2091US5576532AInterleaved and interlaced sync codes and address codes for self-clocking glyph codesXEROX CORP·Filed 1995·Granted Nov 19, 1996·145 cites·5 claims
- 2189US7164789B2Three-dimensional active vision with glyph address carpetPALO ALTO RES CT INC·Filed 2003·Granted Jan 16, 2007·45 cites·27 claims
- 2289US6076738ASelf-clocking glyph shape codesXEROX CORP·Filed 1994·Granted Jun 20, 2000·167 cites·8 claims
- 2388US6594406B1Multi-level selection methods and apparatus using context identification for embedded data graphical user interfacesXEROX CORP·Filed 1998·Granted Jul 15, 2003·107 cites·54 claims
- 2488US6000621ATilings of mono-code and dual-code embedded data pattern strips for robust asynchronous captureXEROX CORP·Filed 1995·Granted Dec 14, 1999·118 cites·46 claims
- 2587US6327395B1Glyph address carpet methods and apparatus for providing location information in a multidimensional address spaceXEROX PARC·Filed 1998·Granted Dec 4, 2001·107 cites·20 claims
- 2682US6714677B1Use of correlation histograms for improved glyph decodingXEROX CORP·Filed 1999·Granted Mar 30, 2004·80 cites·15 claims
- 2780USRE38758ESelf-clocking glyph shape codesXEROX CORP·Filed 2001·Granted Jul 19, 2005·30 cites·20 claims
- 2880US4714182AMethod and apparatus for making bowsHECHT DAVID·Filed 1987·Granted Dec 22, 1987·29 cites·8 claims
- 2977US6678425B1Method and apparatus for decoding angular orientation of lattice codesXEROX CORP·Filed 1999·Granted Jan 13, 2004·109 cites·13 claims
- 3075US7246958B2Hand-propelled wand printerXEROX CORP·Filed 2004·Granted Jul 24, 2007·14 cites·28 claims
- 3175US6000613ASelf-clocking glyph code having composite glyphs for distributively encoding multi-bit digital valuesXEROX CORP·Filed 1994·Granted Dec 14, 1999·68 cites·5 claims
- 3275US5825933AParallel propagating embedded binary sequence for parameterizing two dimensional image domain code patterns in two dimensional address spaceXEROX CORP·Filed 1996·Granted Oct 20, 1998·49 cites·3 claims
- 3372US7493250B2System and method for distributing multilingual documentsXEROX CORP·Filed 2000·Granted Feb 17, 2009·18 cites·2 claims
- 3472US5939703ADistributed dimensional labeling for dimensional characterization of embedded data blocksXEROX CORP·Filed 1996·Granted Aug 17, 1999·42 cites·4 claims
- 3571US5589870ASpot profile control using fractional interlace factors in a polygon ROSXEROX CORP·Filed 1994·Granted Dec 31, 1996·29 cites·28 claims
- 3671US5138339AMicroaddressability via overscanned illumination for optical printers and the like having high gamma photosensitive recording mediaXEROX CORP·Filed 1991·Granted Aug 11, 1992·43 cites·13 claims
- 3768US6993655B1Record and related method for storing encoded information using overt code characteristics to identify covert code characteristicsXEROX CORP·Filed 1999·Granted Jan 31, 2006·38 cites·30 claims
- 3867US5810214AMethod and device for bow makingFiled 1996·Granted Sep 22, 1998·20 cites·3 claims
- 3963US4673953AInterpixel null suppression for optical image barsXEROX CORP·Filed 1985·Granted Jun 16, 1987·22 cites·13 claims
- 4062US4751659ADefect compensation for discrete image barsXEROX CORP·Filed 1987·Granted Jun 14, 1988·24 cites·17 claims
- 4158US7925495B2System and method for distributing multilingual documentsXEROX CORP·Filed 2009·Granted Apr 12, 2011·1 cites·7 claims
- 4257US6982821B2Optical beam position active sensing using satellite beamsPALO ALTO RES CT INC·Filed 2003·Granted Jan 3, 2006·5 cites·49 claims
- 4354US5694102AVector reconstruction of asynchronously captured tiled embedded data blocksXEROX CORP·Filed 1995·Granted Dec 2, 1997·33 cites·15 claims
- 4453US6296192B1Machine-readable record with a two-dimensional lattice of synchronization code interleaved with data codeXEROX CORP·Filed 1999·Granted Oct 2, 2001·17 cites·6 claims
- 4551US7116613B2Optical beam position active sensing and control using satellite beamsPALO ALTO RES CT INC·Filed 2003·Granted Oct 3, 2006·3 cites·19 claims
- 4650US4940314AVariable wavelength discrete optical image bars having passively enhanced spatial addressing capacityXEROX CORP·Filed 1988·Granted Jul 10, 1990·14 cites·18 claims
- 4749US7079667B2Method and apparatus for implementing occlusion glyph code tilingsXEROX CORP·Filed 2000·Granted Jul 18, 2006·3 cites·12 claims
- 4849US6880755B2Method and apparatus for display of spatially registered information using embedded dataXEROX CORP·Filed 1999·Granted Apr 19, 2005·31 cites·12 claims
- 4947US5189548AElectrooptic TIR light modulator image bar having multiple electrodes per pixelXEROX CORP·Filed 1991·Granted Feb 23, 1993·13 cites·4 claims
- 5046US6935562B2Operations on images having glyph carpetsXEROX CORP·Filed 1999·Granted Aug 30, 2005·16 cites·10 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →