DE69405634T2 - Vorrichtung und Verfahren zur Takterzeugung für eine Anzeigevorrichtung - Google Patents

Vorrichtung und Verfahren zur Takterzeugung für eine Anzeigevorrichtung

Info

Publication number
DE69405634T2
DE69405634T2 DE69405634T DE69405634T DE69405634T2 DE 69405634 T2 DE69405634 T2 DE 69405634T2 DE 69405634 T DE69405634 T DE 69405634T DE 69405634 T DE69405634 T DE 69405634T DE 69405634 T2 DE69405634 T2 DE 69405634T2
Authority
DE
Germany
Prior art keywords
reference signal
clock generating
display device
pll
generating device
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
DE69405634T
Other languages
English (en)
Other versions
DE69405634D1 (de
Inventor
Takashi Tsunoda
Hideo Kanno
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
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of DE69405634D1 publication Critical patent/DE69405634D1/de
Application granted granted Critical
Publication of DE69405634T2 publication Critical patent/DE69405634T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/003—Details of a display terminal, the details relating to the control arrangement of the display terminal and to the interfaces thereto
    • G09G5/006—Details of the interface to the display terminal
    • G09G5/008—Clock recovery
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
    • G09G5/363—Graphics controllers
    • G09G5/366—Graphics controllers with conversion of CRT control signals to flat panel control signals, e.g. adapting the palette memory
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L7/00—Automatic control of frequency or phase; Synchronisation
    • H03L7/06—Automatic control of frequency or phase; Synchronisation using a reference signal applied to a frequency- or phase-locked loop
    • H03L7/16—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop
    • H03L7/18—Indirect frequency synthesis, i.e. generating a desired one of a number of predetermined frequencies using a frequency- or phase-locked loop using a frequency divider or counter in the loop
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/04—Partial updating of the display screen
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Graphics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Electric Clocks (AREA)
  • Telephone Function (AREA)
  • Synchronizing For Television (AREA)
DE69405634T 1993-04-28 1994-04-27 Vorrichtung und Verfahren zur Takterzeugung für eine Anzeigevorrichtung Expired - Fee Related DE69405634T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP05102750A JP3109940B2 (ja) 1993-04-28 1993-04-28 表示制御装置及び情報処理装置

Publications (2)

Publication Number Publication Date
DE69405634D1 DE69405634D1 (de) 1997-10-23
DE69405634T2 true DE69405634T2 (de) 1998-02-26

Family

ID=14335901

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69405634T Expired - Fee Related DE69405634T2 (de) 1993-04-28 1994-04-27 Vorrichtung und Verfahren zur Takterzeugung für eine Anzeigevorrichtung

Country Status (5)

Country Link
US (1) US5706035A (de)
EP (1) EP0622775B1 (de)
JP (1) JP3109940B2 (de)
AT (1) ATE158436T1 (de)
DE (1) DE69405634T2 (de)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07199891A (ja) * 1993-12-28 1995-08-04 Canon Inc 表示制御装置
JP3307750B2 (ja) * 1993-12-28 2002-07-24 キヤノン株式会社 表示制御装置
JP3302202B2 (ja) * 1994-11-10 2002-07-15 キヤノン株式会社 表示制御装置
JPH0981074A (ja) * 1995-09-19 1997-03-28 Fujitsu Ltd ディスプレイ装置及びディスプレイユニット及びディスプレイ信号生成装置
JP3487119B2 (ja) * 1996-05-07 2004-01-13 松下電器産業株式会社 ドットクロック再生装置
US6067071A (en) * 1996-06-27 2000-05-23 Cirrus Logic, Inc. Method and apparatus for expanding graphics images for LCD panels
US6389177B1 (en) 1996-07-02 2002-05-14 Apple Computer, Inc. System and method using edge processing to remove blocking artifacts from decompressed images
US5914764A (en) * 1996-09-25 1999-06-22 Rockwell International Corporation Method and apparatus for using optical response time to control a liquid crystal display
US6195079B1 (en) 1996-11-18 2001-02-27 Sage, Inc. On-screen user interface for a video adapter circuit
AU5435898A (en) * 1996-11-18 1998-06-10 Sage, Inc. Adapter circuit for a flat panel display monitor
US5953074A (en) * 1996-11-18 1999-09-14 Sage, Inc. Video adapter circuit for detection of analog video scanning formats
US5907330A (en) * 1996-12-18 1999-05-25 Intel Corporation Reducing power consumption and bus bandwidth requirements in cellular phones and PDAS by using a compressed display cache
WO1999005666A1 (en) 1997-07-25 1999-02-04 Apple Computer, Inc. System and method for generating high-luminance windows on a computer display device
US6175361B1 (en) * 1997-10-27 2001-01-16 Sony Corporation Frequency generation during switch-over for multi-frequency video monitor
US6313823B1 (en) 1998-01-20 2001-11-06 Apple Computer, Inc. System and method for measuring the color output of a computer monitor
US6538648B1 (en) 1998-04-28 2003-03-25 Sanyo Electric Co., Ltd. Display device
US7412654B1 (en) 1998-09-24 2008-08-12 Apple, Inc. Apparatus and method for handling special windows in a display
US6310618B1 (en) * 1998-11-13 2001-10-30 Smartasic, Inc. Clock generation for sampling analong video
JP2005208992A (ja) * 2004-01-23 2005-08-04 Canon Inc 位置情報出力装置及び信号処理方法
JP2008276132A (ja) * 2007-05-07 2008-11-13 Nec Electronics Corp ドットクロック発生回路、半導体装置及びドットクロック発生方法
US20090189842A1 (en) * 2008-01-24 2009-07-30 Industrial Technology Research Institute Backlight control apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4626837A (en) * 1983-11-17 1986-12-02 Wyse Technology Display interface apparatus
US4686567A (en) * 1984-09-28 1987-08-11 Sundstrand Data Control, Inc. Timing circuit for varying the horizontal format of raster scanned display
US5068731A (en) * 1988-07-14 1991-11-26 Seiko Epson Corporation Video image enlargement and reduction system and method
JP2531426B2 (ja) * 1993-02-01 1996-09-04 日本電気株式会社 マルチスキャン型液晶ディスプレイ装置
JP2537013B2 (ja) * 1993-09-30 1996-09-25 インターナショナル・ビジネス・マシーンズ・コーポレイション 液晶表示装置用のドット・クロック生成装置

Also Published As

Publication number Publication date
EP0622775B1 (de) 1997-09-17
DE69405634D1 (de) 1997-10-23
EP0622775A1 (de) 1994-11-02
JP3109940B2 (ja) 2000-11-20
US5706035A (en) 1998-01-06
ATE158436T1 (de) 1997-10-15
JPH06314088A (ja) 1994-11-08

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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