Inventor · disambiguated record
Douglas G. Keithley
Also filed as: KEITHLEY DOUGLAS · KEITHLEY DOUGLAS G · KEITHLEY DOUGLAS GENE
157 granted patents·6 pending applications·1,210 citations·filing 1997–2015
99Inventor score
Files withMARVELL INT LTD44MARVELL INT TECHNOLOGY LTD35KEITHLEY DOUGLAS G29MONTIERTH MARK D8AVAGO TECHNOLOGIES GENERAL IP7
Top patents by PatentIndex Score
163 records- 0199US7710777B1Semi-volatile NAND flash memoryMARVELL INT LTD·Filed 2007·Granted May 4, 2010·171 cites·15 claims
- 0298US8437189B1Method and apparatus for storing data in a NAND flash memoryMONTIERTH MARK D·Filed 2012·Granted May 7, 2013·506 cites·15 claims
- 0395US8095745B1Non-sequential transfer of data from a memorySCHMIDT WILLIAM R·Filed 2007·Granted Jan 10, 2012·60 cites·32 claims
- 0494US8120969B1Semi-volatile NAND flash memoryMONTIERTH MARK D·Filed 2011·Granted Feb 21, 2012·14 cites·17 claims
- 0593US7707349B1USB isochronous data transfer for a host based laser printerMARVELL INT LTD·Filed 2007·Granted Apr 27, 2010·16 cites·50 claims
- 0692US8941884B1Method and apparatus for dynamically generating a stochastic threshold tableMARVELL INT LTD·Filed 2012·Granted Jan 27, 2015·16 cites·20 claims
- 0791US7839424B1Horizontal strip column-first two-dimensional scalingMARVELL INT LTD·Filed 2007·Granted Nov 23, 2010·9 cites·25 claims
- 0889US8760725B1Tone dependent threshold perturbation error diffusion halftoneKEITHLEY DOUGLAS G·Filed 2009·Granted Jun 24, 2014·10 cites·20 claims
- 0988US8000142B1Semi-volatile NAND flash memoryMARVELL INT LTD·Filed 2010·Granted Aug 16, 2011·8 cites·13 claims
- 1085US7904614B1Direct memory access controller with multiple transaction functionalityMARVELL INT LTD·Filed 2007·Granted Mar 8, 2011·14 cites·15 claims
- 1183US9053052B1Non-sequential transfer of data from a memorySCHMIDT WILLIAM R·Filed 2011·Granted Jun 9, 2015·7 cites·17 claims
- 1283US8690061B2User interface feedback using scanner light sourceHALL JR JAMES A·Filed 2012·Granted Apr 8, 2014·5 cites·20 claims
- 1383US8237103B1Mechanical galvanometer tilt correction controlKEITHLEY DOUGLAS G·Filed 2011·Granted Aug 7, 2012·4 cites·20 claims
- 1483US8122220B1Memory usage in imaging devicesMONTIERTH MARK D·Filed 2007·Granted Feb 21, 2012·9 cites·21 claims
- 1583US7798407B2Scanning apparatus and method for entering a user input into the apparatus using a non-electrical control deviceMARVELL INT TECHNOLOGY LTD·Filed 2006·Granted Sep 21, 2010·6 cites·46 claims
- 1683US7719558B1Apparatus and method to generate a horizontal synchronization signal for a printerMARVELL INT LTD·Filed 2008·Granted May 18, 2010·14 cites·46 claims
- 1782US8436883B1Systems and methods for laser spacing compensation in laser printing devicesKEITHLEY DOUGLAS G·Filed 2010·Granted May 7, 2013·5 cites·14 claims
- 1881US8040555B1Method and apparatus for processing image data for an irregular output scan pathMARVELL INT LTD·Filed 2008·Granted Oct 18, 2011·5 cites·16 claims
- 1980US9213512B1Storing and removing device drivers in memory in imaging devicesMARVELL INT LTD·Filed 2014·Granted Dec 15, 2015·4 cites·18 claims
- 2080US7965429B1Method and apparatus for performing color planeMARVELL INT LTD·Filed 2007·Granted Jun 21, 2011·5 cites·59 claims
- 2178US9104941B1Method and apparatus for reducing noise in a scanned image while minimizing loss of detail in the scanned imageMARVELL INT LTD·Filed 2012·Granted Aug 11, 2015·4 cites·18 claims
- 2278US8958636B1Configurable color trappingMCDOUGAL JAY·Filed 2011·Granted Feb 17, 2015·4 cites·23 claims
- 2378US8947734B1Pulse width modulator for a printing deviceMARSHALL JOHN D·Filed 2007·Granted Feb 3, 2015·4 cites·55 claims
- 2478US8630031B1Color adjustment for a scanned imageKEITHLEY DOUGLAS G·Filed 2007·Granted Jan 14, 2014·4 cites·38 claims
- 2577US8549342B1Method and apparatus for fine edge control on integrated circuit outputsMOSS ROY G·Filed 2011·Granted Oct 1, 2013·5 cites·20 claims
- 2677US7706635B2Methods and systems for image scalingMARVELL INT TECHNOLOGY LTD·Filed 2005·Granted Apr 27, 2010·7 cites·17 claims
- 2775US8681381B1Pixel stacking avoidance error diffusion halftoneKEITHLEY DOUGLAS G·Filed 2009·Granted Mar 25, 2014·3 cites·18 claims
- 2874US8836960B1Storing device drivers in imaging devicesMONTIERTH MARK D·Filed 2007·Granted Sep 16, 2014·5 cites·15 claims
- 2974US8587625B2Laser printer with reduced banding artifactsKEITHLEY DOUGLAS G·Filed 2011·Granted Nov 19, 2013·2 cites·20 claims
- 3074USRE43511EDevice and method for digitizing a serialized scanner output signalKEITHLEY DOUGLAS GENE·Filed 2007·Granted Jul 17, 2012·3 cites·38 claims
- 3174US8144358B1Providing demonstration page information in an imaging deviceMONTIERTH MARK D·Filed 2007·Granted Mar 27, 2012·4 cites·6 claims
- 3274US8098405B2Laser print apparatus with dual halftonesKEITHLEY DOUGLAS GENE·Filed 2010·Granted Jan 17, 2012·2 cites·20 claims
- 3374US6819452B1Method and system for modifying portions of an image bit stream representing printing horizontal lines and edges to improve print qualityHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Nov 16, 2004·21 cites·15 claims
- 3473US9704228B1System and method for fractional pixel dilation and erosionMARVELL INT LTD·Filed 2015·Granted Jul 11, 2017·2 cites·21 claims
- 3573US9678334B1Oscillating mirror line based image transformationKEITHLEY DOUGLAS G·Filed 2012·Granted Jun 13, 2017·2 cites·20 claims
- 3673US8760714B1Color space conversionKEITHLEY DOUGLAS G·Filed 2010·Granted Jun 24, 2014·2 cites·20 claims
- 3773US8599455B1Method and apparatus for performing color plane adjustmentBRIGGS RANDALL D·Filed 2011·Granted Dec 3, 2013·2 cites·20 claims
- 3872US8885223B1On-the-fly halftone image generationMARVELL INT LTD·Filed 2013·Granted Nov 11, 2014·2 cites·20 claims
- 3972US8649061B2Laser print apparatus with dual halftonesMARVELL INT TECHNOLOGY LTD·Filed 2013·Granted Feb 11, 2014·1 cites·20 claims
- 4072US8565533B1Image processing using stability criteria for window of pixelsMARVELL INT LTD·Filed 2013·Granted Oct 22, 2013·2 cites·20 claims
- 4172US8085287B2Laser printer with reduced banding artifactsKEITHLEY DOUGLAS G·Filed 2007·Granted Dec 27, 2011·3 cites·35 claims
- 4271US7609409B2Laser print apparatus that generates pulse width value and justification value based on pixels in a multi-bit imageMARVELL INT TECHNOLOGY LTD·Filed 2007·Granted Oct 27, 2009·2 cites·23 claims
- 4370US8054320B1Horizontal strip column-first two-dimensional scalingMARVELL INT LTD·Filed 2010·Granted Nov 8, 2011·1 cites·20 claims
- 4470US7943896B1Mechanical galvanometer tilt correction controlMARVELL INT LTD·Filed 2007·Granted May 17, 2011·3 cites·23 claims
- 4570US7333121B2System and method for scaling data to compensate for slanted scanning in a bidirectional scanning laser printerMARVELL INT TECHNOLOGY LTD·Filed 2005·Granted Feb 19, 2008·2 cites·37 claims
- 4670US6693723B2Image forming device fast draft print modeHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Feb 17, 2004·13 cites·16 claims
- 4769US8405877B2Laser print apparatus with dual half tonesKEITHLEY DOUGLAS GENE·Filed 2012·Granted Mar 26, 2013·1 cites·20 claims
- 4869US8120632B1Allignment of color planes in multi-beam multi-pass printersKEITHLEY DOUGLAS G·Filed 2008·Granted Feb 21, 2012·2 cites·58 claims
- 4968US8625145B1Method and apparatus for estimating usage of print substance in a printerMOSS ROY G·Filed 2011·Granted Jan 7, 2014·2 cites·12 claims
- 5068US8582187B1Method and apparatus for reducing a color fringeKEITHLEY DOUGLAS G·Filed 2011·Granted Nov 12, 2013·1 cites·20 claims
Showing the top 50 of 163 patent records by PatentIndex Score.
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