CA2041941A1 - Technique arithmetique appliquee a l'impression a definition variable dans un systeme de balayage ligne par ligne - Google Patents

Technique arithmetique appliquee a l'impression a definition variable dans un systeme de balayage ligne par ligne

Info

Publication number
CA2041941A1
CA2041941A1 CA2041941A CA2041941A CA2041941A1 CA 2041941 A1 CA2041941 A1 CA 2041941A1 CA 2041941 A CA2041941 A CA 2041941A CA 2041941 A CA2041941 A CA 2041941A CA 2041941 A1 CA2041941 A1 CA 2041941A1
Authority
CA
Canada
Prior art keywords
raster
point
ros
variable resolution
resolution printing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2041941A
Other languages
English (en)
Other versions
CA2041941C (fr
Inventor
Douglas N. Curry
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xerox Corp
Original Assignee
Xerox Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xerox Corp filed Critical Xerox Corp
Publication of CA2041941A1 publication Critical patent/CA2041941A1/fr
Application granted granted Critical
Publication of CA2041941C publication Critical patent/CA2041941C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Laser Beam Printer (AREA)
  • Exposure Or Original Feeding In Electrophotography (AREA)
  • Fax Reproducing Arrangements (AREA)
CA002041941A 1990-06-28 1991-05-07 Technique arithmetique appliquee a l'impression a definition variable dans un systeme de balayage ligne par ligne Expired - Fee Related CA2041941C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/545,744 US5229760A (en) 1990-06-28 1990-06-28 Arithmetic technique for variable resolution printing in a ros
US545,744 1990-06-28

Publications (2)

Publication Number Publication Date
CA2041941A1 true CA2041941A1 (fr) 1991-12-29
CA2041941C CA2041941C (fr) 1997-01-28

Family

ID=24177391

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002041941A Expired - Fee Related CA2041941C (fr) 1990-06-28 1991-05-07 Technique arithmetique appliquee a l'impression a definition variable dans un systeme de balayage ligne par ligne

Country Status (5)

Country Link
US (1) US5229760A (fr)
EP (1) EP0463879B1 (fr)
JP (1) JP3068241B2 (fr)
CA (1) CA2041941C (fr)
DE (1) DE69117591T2 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2128858A1 (fr) 1993-10-28 1995-04-29 Douglas N. Curry Interpolation lineaire bidimensionnelle de pentes pour une imprimante
US5732162A (en) * 1993-10-28 1998-03-24 Xerox Corporation Two dimensional linearity and registration error correction in a hyperacuity printer
US5485289A (en) * 1993-10-28 1996-01-16 Xerox Corporation Hyperacuity printer architecture
US5742325A (en) * 1993-10-28 1998-04-21 Xerox Corporation Micro segmentation in a hyperacuity printer
US5638107A (en) * 1993-10-28 1997-06-10 Xerox Corporation Interlace formatting in a hyperacuity printer
US5410414A (en) * 1993-10-28 1995-04-25 Xerox Corporation Halftoning in a hyperacuity printer
US5638110A (en) * 1993-10-28 1997-06-10 Xerox Corporation Two dimensional slope thresholding in a hyperacuity printer
US5537223A (en) 1994-06-02 1996-07-16 Xerox Corporation Rotating non-rotationally symmetrical halftone dots for encoding embedded data in a hyperacuity printer
US5737006A (en) * 1995-04-24 1998-04-07 Xerox Corporation Scanning method and apparatus for banding suppression
US6330074B1 (en) 1998-10-30 2001-12-11 Xerox Corporation Digital copier magnification and distortion correction
US8947734B1 (en) * 2006-07-27 2015-02-03 Marvell International Ltd. Pulse width modulator for a printing device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4485394A (en) * 1982-09-27 1984-11-27 General Electric Company Automatic convergence and gray scale correction for television _receivers and projection television systems
US4466014A (en) * 1982-09-30 1984-08-14 Allied Corporation Video test method and apparatus with incremental scan rate capability
US4766560A (en) * 1985-12-23 1988-08-23 Xerox Corporation Parallel/pipelined arithmetic variable clock frequency synthesizer
US4740841A (en) * 1987-03-24 1988-04-26 Tektronix, Inc. Correlation of video data between two display formats
US4733299A (en) * 1987-03-26 1988-03-22 New York Institute Of Technology Method and apparatus for generating progressively scanned television information
JPS63245569A (ja) * 1987-03-31 1988-10-12 Yokogawa Medical Syst Ltd 画像表示処理装置
KR910003421B1 (ko) * 1987-12-29 1991-05-30 한국과학기술원 저 블록현상의 대칭형 영상블록 스캔방법
US4837635A (en) * 1988-01-22 1989-06-06 Hewlett-Packard Company A scanning system in which a portion of a preview scan image of a picture displaced on a screen is selected and a corresponding portion of the picture is scanned in a final scan
DE68915101T2 (de) * 1988-09-20 1994-09-15 Hitachi Ltd Faksimilesystem.
US4893136A (en) * 1988-12-22 1990-01-09 Xerox Corporation Arithmetically computed motor hunt compensation for flying spot scanners
US4994912A (en) * 1989-02-23 1991-02-19 International Business Machines Corporation Audio video interactive display
JPH02250464A (ja) * 1989-03-24 1990-10-08 Sharp Corp ファクシミリ装置
JP2813196B2 (ja) * 1989-04-12 1998-10-22 株式会社リコー 画像処理装置

Also Published As

Publication number Publication date
DE69117591D1 (de) 1996-04-11
JPH04233866A (ja) 1992-08-21
EP0463879B1 (fr) 1996-03-06
CA2041941C (fr) 1997-01-28
EP0463879A2 (fr) 1992-01-02
EP0463879A3 (en) 1992-08-05
US5229760A (en) 1993-07-20
DE69117591T2 (de) 1996-09-12
JP3068241B2 (ja) 2000-07-24

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed