DE69530360T2 - Fehlervarianzschaltung zur Verbesserung eines Bildsignals - Google Patents

Fehlervarianzschaltung zur Verbesserung eines Bildsignals

Info

Publication number
DE69530360T2
DE69530360T2 DE69530360T DE69530360T DE69530360T2 DE 69530360 T2 DE69530360 T2 DE 69530360T2 DE 69530360 T DE69530360 T DE 69530360T DE 69530360 T DE69530360 T DE 69530360T DE 69530360 T2 DE69530360 T2 DE 69530360T2
Authority
DE
Germany
Prior art keywords
improving
image signal
error variance
variance circuit
circuit
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 - Lifetime
Application number
DE69530360T
Other languages
English (en)
Other versions
DE69530360D1 (de
Inventor
Masayuki Kobayashi
Masamichi Nakajima
Asao Kosakai
Junichi Onodera
Hayato Denda
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.)
Canon Inc
Original Assignee
Fujitsu General Ltd
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 Fujitsu General Ltd filed Critical Fujitsu General Ltd
Application granted granted Critical
Publication of DE69530360D1 publication Critical patent/DE69530360D1/de
Publication of DE69530360T2 publication Critical patent/DE69530360T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2059—Display of intermediate tones using error diffusion
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/28—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using luminous gas-discharge panels, e.g. plasma panels
    • G09G3/2803—Display of gradations

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)
  • Liquid Crystal (AREA)
DE69530360T 1994-11-17 1995-11-15 Fehlervarianzschaltung zur Verbesserung eines Bildsignals Expired - Lifetime DE69530360T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP06307117A JP3089960B2 (ja) 1994-11-17 1994-11-17 誤差拡散回路

Publications (2)

Publication Number Publication Date
DE69530360D1 DE69530360D1 (de) 2003-05-22
DE69530360T2 true DE69530360T2 (de) 2003-12-24

Family

ID=17965239

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69530360T Expired - Lifetime DE69530360T2 (de) 1994-11-17 1995-11-15 Fehlervarianzschaltung zur Verbesserung eines Bildsignals

Country Status (7)

Country Link
US (1) US5760756A (de)
EP (1) EP0717391B1 (de)
JP (1) JP3089960B2 (de)
KR (1) KR100514614B1 (de)
AU (1) AU701010B2 (de)
CA (1) CA2162795C (de)
DE (1) DE69530360T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0755043B1 (de) * 1995-07-21 2009-09-02 Canon Kabushiki Kaisha Grauskalasteuerschaltung mit Luminanzkompensation
US6310588B1 (en) * 1997-07-24 2001-10-30 Matsushita Electric Industrial Co., Ltd. Image display apparatus and image evaluation apparatus
JP2994633B2 (ja) * 1997-12-10 1999-12-27 松下電器産業株式会社 疑似輪郭ノイズ検出装置およびそれを用いた表示装置
KR100517367B1 (ko) * 1998-12-01 2005-11-25 엘지전자 주식회사 플라즈마 표시 패널의 오차 확산 처리 회로
WO2002019304A1 (en) * 2000-08-30 2002-03-07 Koninklijke Philips Electronics N.V. Matrix display device with multiple line addressing
KR101245664B1 (ko) * 2007-10-25 2013-03-20 엘지디스플레이 주식회사 액정표시장치의 구동방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4890167A (en) * 1986-10-17 1989-12-26 Matsushita Electric Industrial Co., Ltd. Apparatus for processing image signal
US5089812A (en) * 1988-02-26 1992-02-18 Casio Computer Co., Ltd. Liquid-crystal display
EP0378780B1 (de) * 1989-01-13 1994-05-04 International Business Machines Corporation Halbtonbilder mit Fehlerübertragsfortpflanzung mit einer mit Zeit veränderlichen Phasenverschiebung
US5122792A (en) * 1990-06-21 1992-06-16 David Sarnoff Research Center, Inc. Electronic time vernier circuit
GB9024978D0 (en) * 1990-11-16 1991-01-02 Rank Cintel Ltd Digital mirror spatial light modulator
JP2904364B2 (ja) * 1991-03-28 1999-06-14 富士ゼロックス株式会社 階調画像の二値化方法
JP3171993B2 (ja) * 1993-05-24 2001-06-04 キヤノン株式会社 画像処理方法及び装置

Also Published As

Publication number Publication date
EP0717391B1 (de) 2003-04-16
JP3089960B2 (ja) 2000-09-18
KR960019420A (ko) 1996-06-17
KR100514614B1 (ko) 2005-11-25
CA2162795A1 (en) 1996-05-18
AU3785895A (en) 1996-05-23
EP0717391A1 (de) 1996-06-19
AU701010B2 (en) 1999-01-21
US5760756A (en) 1998-06-02
CA2162795C (en) 2006-01-10
JPH08146907A (ja) 1996-06-07
DE69530360D1 (de) 2003-05-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: CANON KABUSHIKI KAISHA, TOKIO/TOKYO, JP

8328 Change in the person/name/address of the agent

Representative=s name: WESER & KOLLEGEN, 81245 MUENCHEN