Inventor · disambiguated record
David Allen Crutchfield
Also filed as: CRUTCHFIELD DAVID · CRUTCHFIELD DAVID A · CRUTCHFIELD DAVID ALLEN
19 granted patents·6 pending applications·247 citations·filing 1999–2008
95Inventor score
Top patents by PatentIndex Score
25 records- 0192US7908414B2Detecting by USB client device a connection to host USB device wherein power is not supply from host USB device to USB client deviceLEXMARK INT INC·Filed 2006·Granted Mar 15, 2011·29 cites·17 claims
- 0286US7486834B2System and method for dynamically shifting error diffusion dataLEXMARK INT INC·Filed 2005·Granted Feb 3, 2009·9 cites·21 claims
- 0382US7068387B2Quick edit and speed print capability for a stand-alone ink jet printerLEXMARK INT INC·Filed 2001·Granted Jun 27, 2006·27 cites·8 claims
- 0482US6688590B2Dual tray printer with single drive shaft and dual media picksLEXMARK INT INC·Filed 2000·Granted Feb 10, 2004·22 cites·28 claims
- 0581US6643728B1Method and apparatus for converting IEEE 1284 signals to or from IEEE 1394 signalsLEXMARK INT INC·Filed 2000·Granted Nov 4, 2003·34 cites·27 claims
- 0674US6801959B1Relaxed-timing universal serial bus with a start of frame packet generatorLEXMARK INT INC·Filed 2001·Granted Oct 5, 2004·21 cites·24 claims
- 0772US7808660B2Quick edit and speed print capability for a stand-alone ink jet printerLEXMARK INT INC·Filed 2008·Granted Oct 5, 2010·2 cites·20 claims
- 0871US7821687B2Method for dynamically compensating for a faulty pixel in a scan line generated by a scannerLEXMARK INT INC·Filed 2007·Granted Oct 26, 2010·3 cites·19 claims
- 0970US7139344B2Method and apparatus for effecting synchronous pulse generation for use in variable speed serial communicationsLEXMARK INT INC·Filed 2001·Granted Nov 21, 2006·15 cites·22 claims
- 1068US7409023B2Method and apparatus for effecting synchronous pulse generation for use in serial communicationsLEXMARK INT INC·Filed 2006·Granted Aug 5, 2008·3 cites·19 claims
- 1165US7580564B2Method of an image processor for transforming a n-bit data packet to a m-bit data packet using a lookup tableLEXMARK INT INC·Filed 2004·Granted Aug 25, 2009·7 cites·19 claims
- 1265US6865241B1Method and apparatus for sampling digital data at a virtually constant rate, and transferring that data into a non-constant sampling rate deviceLEXMARK INT INC·Filed 1999·Granted Mar 8, 2005·47 cites·44 claims
- 1364US7551323B2Systems and methods for error diffusionLEXMARK INT INC·Filed 2003·Granted Jun 23, 2009·7 cites·34 claims
- 1464US7103125B1Method and apparatus for effecting synchronous pulse generation for use in serial communicationsLEXMARK INT INC·Filed 2001·Granted Sep 5, 2006·8 cites·14 claims
- 1563US8086583B2Partitioning fact tables in an analytics systemCRUTCHFIELD DAVID·Filed 2008·Granted Dec 27, 2011·6 cites·23 claims
- 1661US8023144B2Method for generating transposed image dataLEXMARK INT INC·Filed 2006·Granted Sep 20, 2011·2 cites·16 claims
- 1758US7385715B2Quick edit and speed print capability for a stand-alone ink jet printerLEXMARK INT INC·Filed 2006·Granted Jun 10, 2008·1 cites·5 claims
- 1857US2009196519A1System and Method for Dynamically Shifting Error Diffusion DataLEXMARK INT INC·Filed 2008·Application pending·0 cites
- 1956US7333243B2Calculating error diffusion errors to minimize memory accessesLEXMARK INT INC·Filed 2003·Granted Feb 19, 2008·2 cites·29 claims
- 2048US6817697B2Systems and methods for printhead architecture hardware formattingLEXMARK INT INC·Filed 2003·Granted Nov 16, 2004·2 cites·21 claims
- 2148US2006132848A1System and method for data-driven error diffusion using pointerLEXMARK INT INC·Filed 2004·Application pending·0 cites
- 2246US2008239338A1Method For Performing Error Diffusion Halftoning of an ImageBAILEY JAMES RAY·Filed 2007·Application pending·0 cites
- 2345US2006001921A1System and method for high-performance scanner calibrationBAILEY JAMES R·Filed 2004·Application pending·0 cites
- 2443US2007106719A1Integer square root algorithm for use in digital image processingLEXMARK INT INC·Filed 2005·Application pending·0 cites
- 2541US2007091383A1Synchronization of two ASICs for dual-sided scanning of a documentLEXMARK INT INC·Filed 2005·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when David Allen Crutchfield files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →