DE69022719D1 - Kopierer und verfahren zum kopieren. - Google Patents

Kopierer und verfahren zum kopieren.

Info

Publication number
DE69022719D1
DE69022719D1 DE69022719T DE69022719T DE69022719D1 DE 69022719 D1 DE69022719 D1 DE 69022719D1 DE 69022719 T DE69022719 T DE 69022719T DE 69022719 T DE69022719 T DE 69022719T DE 69022719 D1 DE69022719 D1 DE 69022719D1
Authority
DE
Germany
Prior art keywords
copier
copying
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 - Fee Related
Application number
DE69022719T
Other languages
English (en)
Other versions
DE69022719T2 (de
Inventor
Lawrence Telle
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.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
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 Eastman Kodak Co filed Critical Eastman Kodak Co
Application granted granted Critical
Publication of DE69022719D1 publication Critical patent/DE69022719D1/de
Publication of DE69022719T2 publication Critical patent/DE69022719T2/de
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
    • H04N1/403—Discrimination between the two tones in the picture signal of a two-tone original

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Control Or Security For Electrophotography (AREA)
DE69022719T 1989-11-30 1990-11-26 Kopierer und verfahren zum kopieren. Expired - Fee Related DE69022719T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/443,543 US5150223A (en) 1989-11-30 1989-11-30 Copier with single pass auto exposure
PCT/US1990/006785 WO1991008640A1 (en) 1989-11-30 1990-11-26 Copier and process for copying

Publications (2)

Publication Number Publication Date
DE69022719D1 true DE69022719D1 (de) 1995-11-02
DE69022719T2 DE69022719T2 (de) 1996-05-15

Family

ID=23761214

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69022719T Expired - Fee Related DE69022719T2 (de) 1989-11-30 1990-11-26 Kopierer und verfahren zum kopieren.

Country Status (5)

Country Link
US (1) US5150223A (de)
EP (1) EP0455775B1 (de)
JP (1) JPH04503293A (de)
DE (1) DE69022719T2 (de)
WO (1) WO1991008640A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04270565A (ja) * 1991-02-20 1992-09-25 Fuji Xerox Co Ltd 画像圧縮装置
US5583659A (en) * 1994-11-10 1996-12-10 Eastman Kodak Company Multi-windowing technique for thresholding an image using local image properties
US5901243A (en) * 1996-09-30 1999-05-04 Hewlett-Packard Company Dynamic exposure control in single-scan digital input devices
JP3717357B2 (ja) * 2000-01-07 2005-11-16 理想科学工業株式会社 ２値化閾値算出方法および装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587971A (ja) * 1981-07-07 1983-01-17 Canon Inc 両面画像形成装置
US4524388A (en) * 1981-08-11 1985-06-18 Konishiroku Photo Industry Co., Ltd. Shading correction device
US4672186A (en) * 1981-10-01 1987-06-09 Banctec Inc. Digital document scanning system
JPS5954376A (ja) * 1982-09-21 1984-03-29 Konishiroku Photo Ind Co Ltd 画像処理方法
JPS59125176A (ja) * 1982-12-30 1984-07-19 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン ビデオイメ−ジのシエ−ジング効果の補正装置
JPS60124173A (ja) * 1983-12-09 1985-07-03 Canon Inc 画像処理装置
JPS63103570A (ja) * 1986-10-20 1988-05-09 Sharp Corp カラ−記録方式
US4779106A (en) * 1986-12-12 1988-10-18 Eastman Kodak Company Process control for electrostatographic machine
US4922350A (en) * 1988-03-30 1990-05-01 Eastman Kodak Company Document recognition with forward direction scan for detecting the boundaries of an original document and reverse direction scan for producing recorded image on the original document

Also Published As

Publication number Publication date
EP0455775A1 (de) 1991-11-13
JPH04503293A (ja) 1992-06-11
US5150223A (en) 1992-09-22
DE69022719T2 (de) 1996-05-15
EP0455775B1 (de) 1995-09-27
WO1991008640A1 (en) 1991-06-13

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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