DE3563160D1 - Variable resolution scanning in line scan optical imaging systems - Google Patents

Variable resolution scanning in line scan optical imaging systems

Info

Publication number
DE3563160D1
DE3563160D1 DE8585302686T DE3563160T DE3563160D1 DE 3563160 D1 DE3563160 D1 DE 3563160D1 DE 8585302686 T DE8585302686 T DE 8585302686T DE 3563160 T DE3563160 T DE 3563160T DE 3563160 D1 DE3563160 D1 DE 3563160D1
Authority
DE
Germany
Prior art keywords
optical imaging
imaging systems
line scan
resolution scanning
variable resolution
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.)
Expired
Application number
DE8585302686T
Other languages
English (en)
Inventor
Douglas Roger Arnoldi
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.)
Unisys Corp
Original Assignee
Unisys 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 Unisys Corp filed Critical Unisys Corp
Application granted granted Critical
Publication of DE3563160D1 publication Critical patent/DE3563160D1/de
Expired 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
    • H04N1/0408—Different densities of dots per unit length
    • H04N1/0414—Different densities of dots per unit length in the sub scanning direction
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/0402—Scanning different formats; Scanning with different densities of dots per unit length, e.g. different numbers of dots per inch (dpi); Conversion of scanning standards
    • H04N1/042—Details of the method used
    • H04N1/0443—Varying the scanning velocity or position
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/12—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using the sheet-feed movement or the medium-advance or the drum-rotation movement as the slow scanning component, e.g. arrangements for the main-scanning
    • 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
    • H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
    • H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
    • H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
    • H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
    • H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
    • H04N2201/04—Scanning arrangements
    • H04N2201/047—Detection, control or error compensation of scanning velocity or position
    • H04N2201/04753—Control or error compensation of scanning position or velocity
    • H04N2201/04756—Control or error compensation of scanning position or velocity by controlling the position or movement of the sheet, the sheet support or the photoconductive surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Scanning Arrangements (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
DE8585302686T 1984-04-20 1985-04-17 Variable resolution scanning in line scan optical imaging systems Expired DE3563160D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/602,360 US4575769A (en) 1984-04-20 1984-04-20 Variable resolution scanning in line scan optical imaging systems

Publications (1)

Publication Number Publication Date
DE3563160D1 true DE3563160D1 (en) 1988-07-07

Family

ID=24411047

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585302686T Expired DE3563160D1 (en) 1984-04-20 1985-04-17 Variable resolution scanning in line scan optical imaging systems

Country Status (5)

Country Link
US (1) US4575769A (de)
EP (1) EP0159192B1 (de)
JP (1) JPS60237760A (de)
CA (1) CA1235479A (de)
DE (1) DE3563160D1 (de)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644409A (en) * 1985-02-26 1987-02-17 Advanced Micro Devices, Inc. Document resolution-adaption method and apparatus
JPS62159A (ja) * 1985-06-26 1987-01-06 Brother Ind Ltd フアクシミリ装置
JP2889235B2 (ja) * 1986-06-26 1999-05-10 ソニー株式会社 プリンタ装置
US4788558A (en) * 1987-02-06 1988-11-29 Intermec Corporation Method and apparatus for controlling tension in tape progressed along a feed path
US5099698A (en) * 1989-04-14 1992-03-31 Merck & Co. Electronic readout for a rotameter flow gauge
US5341225A (en) * 1991-05-14 1994-08-23 Hewlett-Packard Company Image scanning system and method with improved repositioning
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
US10361802B1 (en) 1999-02-01 2019-07-23 Blanding Hovenweep, Llc Adaptive pattern recognition based control system and method
US5640465A (en) * 1992-02-14 1997-06-17 Smitt; Asbjorn Method and apparatus for on-line tiled thresholding in scanners based on prescan
US5293432A (en) * 1992-06-30 1994-03-08 Terminal Data Corporation Document image scanner with variable resolution windows
US5373372A (en) * 1993-03-25 1994-12-13 Hewlett-Packard Company Method and an apparatus for limited variable speed scanning
US5642207A (en) * 1994-09-16 1997-06-24 Contex A/S Color scanner with variable line resolution
US5943449A (en) * 1995-03-03 1999-08-24 Canon Kabushiki Kaisha Image communicating method and apparatus employing communication of the size and direction of the image prior to transmission of the image
JP2891187B2 (ja) * 1995-06-22 1999-05-17 信越半導体株式会社 ワイヤーソー装置及び切断方法
FR2743241B1 (fr) * 1995-12-28 1998-02-13 Sagem Procede de modification de la resolution d'une image numerisee
KR100253847B1 (ko) * 1997-11-13 2000-04-15 윤종용 팩시밀리의 단위계별 라인길이오차 보정방법
US6226107B1 (en) * 1998-07-15 2001-05-01 Mustek System Inc. Multi-resolution scanners
US7966078B2 (en) 1999-02-01 2011-06-21 Steven Hoffberg Network media appliance system and method
US6429953B1 (en) * 1999-05-10 2002-08-06 Sharp Laboratories Of America, Inc. Super resolution scanning using color multiplexing of image capture devices
US6624901B1 (en) * 2000-04-18 2003-09-23 Kba (Advanced Imaging Technology) Limited Digital skew correction method and apparatus for multi color printing machine
TW580823B (en) * 2001-04-26 2004-03-21 Avision Inc Image scanning method for increasing resolution of a document image
JP4268026B2 (ja) * 2002-12-03 2009-05-27 株式会社リコー 画像形成装置
US9712697B1 (en) 2016-01-20 2017-07-18 Xerox Corporation Detecting sizes of documents scanned using handheld devices

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53146522A (en) * 1977-05-16 1978-12-20 Ricoh Co Ltd Telautogram information extracting system
US4220978A (en) * 1977-07-08 1980-09-02 Burroughs Corporation Electro-optical document reader
US4388652A (en) * 1979-04-30 1983-06-14 Harris Corporation Synchronized, variable speed capstan motor drive system for facsimile recorder
JPS5635756A (en) * 1979-08-30 1981-04-08 Kobe Steel Ltd Precipitation hardening type hot working tool steel
JPS57193170A (en) * 1981-05-22 1982-11-27 Fuji Photo Film Co Ltd Subscanning method

Also Published As

Publication number Publication date
CA1235479A (en) 1988-04-19
EP0159192B1 (de) 1988-06-01
JPH0344710B2 (de) 1991-07-08
JPS60237760A (ja) 1985-11-26
EP0159192A1 (de) 1985-10-23
US4575769A (en) 1986-03-11

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee