P

Inventor

CURRY DOUGLAS N

US60 patents
⚠️ This page may combine multiple inventors who share the name “CURRY DOUGLAS N”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

XEROX CORP

43 patents
US6970259B1Nov 29, 2005

Systems and methods for forgery detection and deterrence of printed documents

XEROX CORP164 citations98
US5946103AAug 31, 1999

Halftone patterns for trusted printing

XEROX CORP92 citations98
US5710636AJan 20, 1998

Method and apparatus for generating halftone images having human readable patterns formed therein

XEROX CORP135 citations98
US5537223AJul 16, 1996

Rotating non-rotationally symmetrical halftone dots for encoding embedded data in a hyperacuity printer

XEROX CORP126 citations98
US6081345AJun 27, 2000

Line screen having extended dynamic tone range for embedding machine readable data in halftone images

XEROX CORP64 citations96
US5732162AMar 24, 1998

Two dimensional linearity and registration error correction in a hyperacuity printer

XEROX CORP65 citations96
US5706099AJan 6, 1998

Method and apparatus for generating serpentine halftone images

XEROX CORP73 citations96
US5410414AApr 25, 1995

Halftoning in a hyperacuity printer

XEROX CORP55 citations96
US6519055B1Feb 11, 2003

Two-dimensional linear interpolation and registration control for a hyperacuity printer

XEROX CORP25 citations93
US6346993B1Feb 12, 2002

Tone-variation-resistant phase-shiftable halftone screen system and method of using

XEROX CORP32 citations93
US6239829B1May 29, 2001

Systems and methods for object-optimized control of laser power

XEROX CORP37 citations93
US6092732AJul 25, 2000

Selectively accented serpentine halftone patterns for embedding human readable information in images

XEROX CORP30 citations93
US5696604ADec 9, 1997

Analytical halftone dot construction for a hyperacuity printer

XEROX CORP41 citations93
US5638107AJun 10, 1997

Interlace formatting in a hyperacuity printer

XEROX CORP26 citations93
US5602653AFeb 11, 1997

Pixel pair grid halftoning for a hyperacuity printer

XEROX CORP35 citations93
US5589870ADec 31, 1996

Spot profile control using fractional interlace factors in a polygon ROS

XEROX CORP29 citations93
US5485289AJan 16, 1996

Hyperacuity printer architecture

XEROX CORP50 citations93
US5479584ADec 26, 1995

Enhanced fidelity reproduction of images with device independent numerical sample output

XEROX CORP21 citations93
US5430472AJul 4, 1995

Method and apparatus for eliminating distortion via overscanned illumination for optical printers and the like having high gamma photosensitive recording media and high addressability

XEROX CORP45 citations93
US5233367AAug 3, 1993

Multiple beam interlaced scanning system

XEROX CORP39 citations93
US5138339AAug 11, 1992

Microaddressability via overscanned illumination for optical printers and the like having high gamma photosensitive recording media

XEROX CORP43 citations93
US4935891AJun 19, 1990

Pseudo-random phase shifted arithmetic bit clock generators for digital printers

XEROX CORP30 citations93
US4893136AJan 9, 1990

Arithmetically computed motor hunt compensation for flying spot scanners

XEROX CORP33 citations93
US4766560AAug 23, 1988

Parallel/pipelined arithmetic variable clock frequency synthesizer

XEROX CORP28 citations93
US4622593ANov 11, 1986

Polygon signature correction

XEROX CORP30 citations93
US6608701B1Aug 19, 2003

Compact high addressability rendering

XEROX CORP40 citations92
US5329599AJul 12, 1994

Enhanced fidelity reproduction of images by hierarchical template matching

XEROX CORP40 citations89
US7359091B2Apr 15, 2008

Multi-bit output sampled threshold array halftoner

XEROX CORP10 citations84
US4860237AAug 22, 1989

Scan linearity correction

XEROX CORP22 citations82
US7123771B2Oct 17, 2006

System and method for directed acuity segmentation resolution compression and decompression

XEROX CORP5 citations74
US6853754B2Feb 8, 2005

System and method for directed acuity segmentation resolution compression and decompression

XEROX CORP8 citations74
US6771827B1Aug 3, 2004

System and method for directed acuity segmentation resolution compression and decompression

XEROX CORP12 citations74
US6243100B1Jun 5, 2001

Two dimensional linear interpolation with slope output for a hyperacuity printer

XEROX CORP12 citations74
US5872868AFeb 16, 1999

Technique for generating and storing edge phase information for rendering text and lineart in hyperacuity printers

XEROX CORP8 citations74
US5742325AApr 21, 1998

Micro segmentation in a hyperacuity printer

XEROX CORP13 citations74
US5638110AJun 10, 1997

Two dimensional slope thresholding in a hyperacuity printer

XEROX CORP14 citations74
US5382967AJan 17, 1995

Continuously tunable raster resolution printing

XEROX CORP9 citations74
US5367381ANov 22, 1994

Method and apparatus for enhanced resolution and contrast via super intensity controlled overscanned illumination in a two dimensional high addressability printer

XEROX CORP15 citations74
US5357273AOct 18, 1994

Resolution conversion via intensity controlled overscanned illumination for optical printers and the like having high gamma photosensitive recording media

XEROX CORP12 citations74
US5264943ANov 23, 1993

Apparatus and method for providing accurate layer registration for multiple layer electronic printing systems

XEROX CORP7 citations74
US5229760AJul 20, 1993

Arithmetic technique for variable resolution printing in a ros

XEROX CORP14 citations74
US5216443AJun 1, 1993

Programmable intensity smart laser system capable of being fabricated on a semiconductive substrate

XEROX CORP18 citations74
US4639789AJan 27, 1987

Raster scanner variable-frequency clock circuit

XEROX CORP17 citations74

PALO ALTO RES CT INC

4 patents

CURRY DOUGLAS N

1 patent

SCRIPPS RESEARCH INST

1 patent

STOWE TIMOTHY DAVID

1 patent

Showing the top 50 of 60 patents by PatentIndex Score.