WO2005116975A1 - 表示方式切替装置、表示方式切替方法、表示方式切替プログラム、及びそのプログラムを記憶したコンピュータ読み取り可能な記憶媒体 - Google Patents
表示方式切替装置、表示方式切替方法、表示方式切替プログラム、及びそのプログラムを記憶したコンピュータ読み取り可能な記憶媒体 Download PDFInfo
- Publication number
- WO2005116975A1 WO2005116975A1 PCT/JP2005/009657 JP2005009657W WO2005116975A1 WO 2005116975 A1 WO2005116975 A1 WO 2005116975A1 JP 2005009657 W JP2005009657 W JP 2005009657W WO 2005116975 A1 WO2005116975 A1 WO 2005116975A1
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- WO
- WIPO (PCT)
- Prior art keywords
- switching
- television receiver
- content
- displayed
- screen
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 95
- 230000008569 process Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006266 hibernation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G1/00—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data
- G09G1/06—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows
- G09G1/14—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible
- G09G1/16—Control arrangements or circuits, of interest only in connection with cathode-ray tube indicators; General aspects or details, e.g. selection emphasis on particular characters, dashed line or dotted line generation; Preprocessing of data using single beam tubes, e.g. three-dimensional or perspective representation, rotation or translation of display pattern, hidden lines, shadows the beam tracing a pattern independent of the information to be displayed, this latter determining the parts of the pattern rendered respectively visible and invisible the pattern of rectangular co-ordinates extending over the whole area of the screen, i.e. television type raster
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- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
- H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
- H04N3/16—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by deflecting electron beam in cathode-ray tube, e.g. scanning corrections
- H04N3/27—Circuits special to multi-standard receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
-
- 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
- G09G2320/06—Adjustment of display parameters
- G09G2320/0613—The adjustment depending on the type of the information to be displayed
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/02—Graphics controller able to handle multiple formats, e.g. input or output formats
Definitions
- Display method switching device display method switching method, display method switching program, and computer-readable storage medium storing the program
- the present invention relates to a display method switching device, a display method switching method, a display method switching program, and a computer-readable storage medium storing the program, and more particularly, to a display method for a television receiver.
- the present invention relates to a display method switching apparatus, a display method switching method, a display method switching program, and a computer-readable storage medium storing the program, which automatically switches to scan or underscan.
- Overscan is suitable for displaying a television screen, but is not suitable for displaying a computer screen. While video is mainly displayed on the television screen and important information is often displayed in the center of the screen, the still image is mainly displayed on the computer screen, and the top, bottom, left and right of the screen are displayed. Important information (icons, menus, etc.) is often displayed. Therefore, when displaying a computer screen on a television receiver, the entire computer screen is often reduced to the effective display area of the television receiver. This display method is called “underscan”.
- a normal computer screen for example, a desktop screen of an operating system (OS)
- OS operating system
- overscan is preferred when playing with the game! / ,. Even if the top, bottom, left and right of the screen are hidden by the bezel, it is easier to see the screen as if it were widened to fill the display.
- Japanese Patent Application Laid-Open No. 61-176973 discloses a screen display range switching method for switching the display method of a CRT (Cathode Ray Tube) to overscan or underscan.
- CRT Cathode Ray Tube
- this method by switching the switch, the image output from the computer is displayed in underscan, and the image output from the TV tuner is displayed in overscan.
- this method requires special hardware to switch overscan or underscan, and also plays the DVD on the computer because the image output from the computer is always displayed in underscan. In such a case, the image is displayed underscanned.
- An object of the present invention is to provide a display mode switching device, a display mode switching method, a display mode switching program, which automatically switches a display mode of a television receiver to overscan or underscan in accordance with the content of a screen. And a computer-readable storage medium storing the program.
- a display mode switching device includes a content identification unit and a switching unit.
- the content identification means identifies content to be displayed on the television receiver.
- the switching means switches the output method to the television receiver to overscan or underscan according to the identification result by the content identification means.
- the display mode switching device In this display mode switching device, the content to be displayed on the television receiver is identified, and the output mode to the television receiver is switched to overscan or underscan according to the identification result. Therefore, the display mode switching device can automatically switch the display mode of the television receiver to overscan or underscan according to the content of the screen without any operation by the user.
- the content identification means identifies the content to be displayed on the television receiver by detecting a call from a video playback application or game application to a predetermined API (Application Program Interface). Including means to do.
- the content identification means can be realized with a simple configuration.
- the content identification means detects the call to a predetermined API (Application Program Interface) from a moving image playback application or a game application to convert the content to be displayed on the television receiver into a moving image. Or means for identifying a game.
- the switching means includes means for switching the output method to the television receiver to over-scan when the content to be displayed on the television receiver is identified as a moving image or a game.
- the content identification means detects the call from a video playback application or game application to a predetermined API (Application Program Interface), and thereby, the content to be displayed on the television receiver is normally set.
- the switching means includes means for switching the output mode to the television receiver to underscan when the content to be displayed on the television receiver is identified as a normal computer screen.
- the switching unit further changes at least one of a gamma value, screen brightness, screen contrast, and screen color.
- the gamma value, the brightness of the screen, the contrast of the screen, the color of the screen, and the like are also automatically switched.
- the display method switching method according to the present invention is an operation method when a display method switching device is used. Further, a display method switching program according to the present invention provides a display method switching method. Is a program for causing a computer to execute the respective steps. Further, a storage medium according to the present invention is a computer-readable storage medium storing a display mode switching program.
- FIG. 1 is a functional block diagram showing an overall configuration of a computer system using a display mode switching device according to an embodiment of the present invention.
- FIG. 2 is a functional block diagram showing a hardware configuration of a computer in FIG. 1.
- FIG. 3 is a functional block diagram showing a configuration of a device driver in FIG. 1.
- FIG. 4 is a flowchart showing an operation when the computer system shown in FIG. 1 displays a moving image or three-dimensional graphics on a full screen.
- FIG. 5 is a flowchart showing an operation when the computer system shown in FIG. 1 displays a normal computer screen.
- a computer system 10 using a display mode switching device includes a computer 11 and a television receiver 12 connected thereto.
- a consumer television receiver 12 is used as a display device instead of a computer monitor.
- the computer 11 includes a moving image reproduction application 13, a three-dimensional game application 14, an OS 15, a device driver 16, and a graphics adapter 17.
- computer 11 generally includes a central processing unit (CPU) 111, a read-only memory (ROM) 112, a random access memory (RAM) 113, and a hard disk 11
- CPU central processing unit
- ROM read-only memory
- RAM random access memory
- hard disk 11 hard disk 11
- FD flexible disk
- CD-ROM Compact Disk-Read Only Memory
- the applications 13, 14, the OS 15, and the device driver 16 shown in FIG. 1 are software, and are initially provided in a state of being stored in the flexible disk 30 or the CD-ROM 31. Is done.
- the software is read from the flexible disk 30 or the CD-ROM 31 by the FD drive 115 or the CD-ROM drive 116 and installed on the hard disk 114.
- the OS 15 includes APIs (Application Program Interfaces) 18 and 19 having a multimedia processing function.
- APIs Application Program Interfaces
- Microsoft's Windows registered trademark
- DirectX includes various APIs such as DirectDraw (trademark) for video playback and Direct3D (trademark) for 3D graphics.
- the device driver 16 is generally a program for controlling the graphics adapter 17 in accordance with commands from the APIs 18 and 19.
- the display mode switching program (FIG. 4 and FIG. 5 includes the reference numeral 160) in FIG.
- device driver 16 includes a content identification unit 161 and a switching unit 162 that constitute a display mode switching program.
- Content identification section 161 identifies content to be displayed on television receiver 12.
- the switching unit 162 switches the output method to the television receiver 12 to overscan or underscan according to the identification result. More specifically, the content identification unit 161 detects a call from the playback application or the game application 13 or 14 to the video playback or 3D graphics API, and displays the call on the television receiver 12. Identify the content to be a video or game or a regular computer screen. When the content to be displayed on the television receiver 12 is identified as a moving image or a game, the switching unit 162 switches the output method to the television receiver 12 to overscan and displays the content on the television receiver 12.
- the output method to the television receiver 12 is switched to underscan.
- the switching unit 162 switches a gamma value, screen brightness, screen contrast, screen color, and the like in addition to the output method.
- the "normal computer screen” here is a desktop screen that displays, for example, icons, task bars, windows, and the like. , Including the state that the game is displayed in full screen.
- the device driver 16 including the display mode switching program includes an optical disk such as a CD-ROM ⁇ DVD-ROM, a magnetic disk such as a flexible disk and a hard disk, and a semiconductor memory such as a ROM and a RAM (Random Access Memory). It is stored on computer-readable storage media or distributed by uploading to websites on the Internet.
- an optical disk such as a CD-ROM ⁇ DVD-ROM
- a magnetic disk such as a flexible disk and a hard disk
- a semiconductor memory such as a ROM and a RAM (Random Access Memory). It is stored on computer-readable storage media or distributed by uploading to websites on the Internet.
- the graphics adapter 17 is generally hardware having an image display function.
- the graphics adapter 17 particularly has a high-speed processing function for moving images and three-dimensional graphics.
- the television receiver 12 includes a display 20 and a display control circuit 21.
- the display 20 for example, a CRT, an LCD (Liquid Crystal Display), or a plasma display is used.
- the display control circuit 21 displays an image on the display 20 based on the video signal and the synchronization signal output from the graphics adapter 17.
- the display mode switching program 160 is a program for causing the computer 11 to execute steps S13 to S18 in FIG. 4 and steps S23 to S25 in FIG.
- the device driver 16 determines whether or not the screen display mode is the full screen display mode (S13). In the case of the full-screen display mode, the process proceeds to the next step S14.
- the OS 15 is provided with an API (not shown) for setting a screen display mode in response to APIs 18 and 19.
- the applications 13 and 14 call this API, and the OS 15 requests the device driver 16 to set the screen display mode. Therefore, by detecting this call, the device driver 16 determines whether the screen display mode is the full screen display mode or not. You can do it.
- the device driver 16 detects a call of the API 18, 19 (S14). Details are as follows.
- the API call comes down to the driver layer, and the device driver 16 detects the call (S14). Thereby, the device driver 16 identifies that the content of the screen to be displayed on the display 20 is a moving image.
- the API call comes down to the driver layer, and the device driver 16 detects the call ( S14). Thereby, the device driver 16 identifies that the content of the screen to be displayed on the display 20 is a three-dimensional game.
- the device driver 16 determines whether the display device is a television receiver (S15). If it is a television receiver, the process proceeds to the next step S16. If it is not a television receiver, the process skips to step S19 described later. In the present embodiment, since the display device is the television receiver 12, the process proceeds to step S16.
- the device driver 16 generally recognizes a device attached to the computer 11 at the time of startup or at the time of resuming from suspend or hibernation. Therefore, the device driver 16 can determine whether or not the television receiver is connected by checking the state of the television output port connected to the graphics adapter 17.
- the device driver 16 determines whether the currently set output mode is underscan or overscan (S16). In the case of underscan, the process proceeds to the next step SI7.
- the output system to the television receiver 12 is generally set in a register (not shown) in the graphics adapter 17. Therefore, by reading the value set in this register, the device driver 16 can determine whether the output method is the underscan force overscan.
- the device driver 16 transmits the current setting information (output method, gun Graphics adapter, screen brightness, screen brightness, screen contrast, etc.
- the data is stored in a storage medium such as a register in the computer 17 or a memory in the computer 11 (S17).
- the gamma value is set to "1" suitable for the display of an underscan for displaying a normal computer screen, and "2" suitable for the display of an overscan for displaying a moving image or a game. .2 ”is set. Therefore, if the current output method is underscan, the gamma value “1” is saved.
- the gamma value may be set to the above value by default, and set to a desired value according to a user operation.
- the brightness is set brighter in the case of underscan and darker in the case of overscan. Contrast is set low for underscan and strong for overscan. The tint is set lighter for underscan and darker for overscan.
- Table 2 below shows setting examples of brightness, contrast, and hue.
- the brightness is expressed in arbitrary units, and a force that can take a value of 0 to 255 Set to “100” for underscan and “65” for overscan. Contrast is also expressed in arbitrary units and is a force that can take a value between 0 and 255. Here, it is set to “240” for underscan and “255” for overscan. Hue is represented by color temperature and is set to "6500K” for underscan and "9300 ⁇ ” for overscan. Therefore, if the current output method is underscan, brightness “100”, contrast “240” and hue “9300 °” are saved. The above is an example of the default value, and the user can set a desired value.
- the device driver 16 switches the output mode to overscan, and changes the gamma value, screen brightness, screen contrast, screen color, and the like to predetermined values (S18). Specifically, the device driver 16 sets a gamma value of "2.2", a brightness of "65”, a contrast of "255 J, a color tone of" 9300K "as a value indicating overscan in a register in the graphics adapter 17. Set.
- the device driver 16 passes control to the applications 13, 14 and the OS 16 (S19).
- the display system of the television receiver 12 is automatically switched to overscan.
- the video playback application 13 ends, and when the user finishes the game, the three-dimensional game application 14 ends (S2D0, whereby the computer 11 runs the normal OS).
- the screen display mode is switched from the full-screen display mode to the desktop display mode during the operation of the applications 13 and 14 (S21)
- the computer 11 returns to the normal OS mode. Return (S22).
- the device driver 16 detects a call to the API 18, 19 or a request to change the display mode (S23). Details are as follows.
- the moving image playing API 18 When the moving image playing application 13 ends, the moving image playing API 18 is called to release the resources used so far. Also, 3D game applications When Yeon 14 ends, it calls the 3D Dallas Fix API 19 to release the resources it was using. Since these calls also come down to the driver layer, the device driver 16 detects the calls (S23). Thus, the device driver 16 detects the end of the applications 13 and 14 and identifies that the content of the screen to be displayed on the display 20 is a normal computer screen.
- the OS 15 issues a request to change the display mode to the device driver 16, and the device driver 16 detects this. (S23).
- the device driver 16 detects the switch to the desktop display mode, and identifies that the content of the screen to be displayed on the display 20 is a normal computer screen.
- the device driver 16 determines whether or not the display device is a television receiver (S24). If it is a television receiver, the process proceeds to the next step S25, and if it is not a television receiver, it skips to step S26 described later. In this embodiment, since the display device is the television receiver 12, the process proceeds to step S25.
- the device driver 16 is a register in the graphics adapter 17 ⁇ a storage medium such as a memory in the computer 11 Setting information (output method, gamma value, screen brightness, screen contrast, screen color, etc.) ) And restore them. If the output method is switched to underscan force overscan in step S18, the output method is returned to overscan force underscan. Specifically, the device driver 16 sets a value indicating underscan in a register in the graphics adapter 17. At the same time, the gamma value, screen brightness, screen contrast, screen color, etc. are returned to their original values. For example, the device driver 16 returns the gamma value to the original “1.0”, the brightness to the original “100”, the contrast to “240”, and the hue to “6500K”.
- the device driver 16 passes control to the applications 13, 14 and the OS 16 (S26).
- the display method of the television receiver 12 is automatically set. Can be switched to underscan.
- the device driver 16 detects the content of the screen to be displayed, and changes the output method to the television receiver 12 according to the detected content.
- the display method of the television receiver 12 can be automatically switched according to the use state of the computer 11 without the user's operation.
- the device driver 16 detects an API call and switches the output method to overscan or underscan, applications 13, 14, OS15, graphics, and the like that require only improvement in existing device drivers
- Existing adapters and television receivers 12 can be used as they are.
- the display method switching device can be used for a computer system using a television receiver as a display device.
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Controls And Circuits For Display Device (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0623633A GB2438270B (en) | 2004-05-31 | 2005-05-26 | Display mode switching device |
DE112005001224T DE112005001224T5 (de) | 2004-05-31 | 2005-05-26 | Anzeigemodusumschaltvorrichtung, Anzeigemodusumschaltverfahren, Anzeigemodusumschaltprogramm und computerlesbares Aufzeichnungsmedium mit darauf gespeichertem Anzeigemodusumschaltprogramm |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004161776A JP4153462B2 (ja) | 2004-05-31 | 2004-05-31 | 表示方式切替装置、表示方式切替方法、表示方式切替プログラム、及びそのプログラムを記憶したコンピュータ読み取り可能な記憶媒体 |
JP2004-161776 | 2004-05-31 |
Publications (1)
Publication Number | Publication Date |
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WO2005116975A1 true WO2005116975A1 (ja) | 2005-12-08 |
Family
ID=35426077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2005/009657 WO2005116975A1 (ja) | 2004-05-31 | 2005-05-26 | 表示方式切替装置、表示方式切替方法、表示方式切替プログラム、及びそのプログラムを記憶したコンピュータ読み取り可能な記憶媒体 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7675574B2 (ja) |
JP (1) | JP4153462B2 (ja) |
CN (1) | CN100518266C (ja) |
DE (1) | DE112005001224T5 (ja) |
GB (1) | GB2438270B (ja) |
TW (1) | TWI344104B (ja) |
WO (1) | WO2005116975A1 (ja) |
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JP2013174665A (ja) * | 2012-02-23 | 2013-09-05 | Toshiba Corp | 情報処理装置、画質補正の制御方法およびプログラム |
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JP2002341843A (ja) * | 2001-05-11 | 2002-11-29 | Nanao Corp | ディスプレイ装置及び画像表示システム |
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US6314479B1 (en) | 1997-08-04 | 2001-11-06 | Compaq Computer Corporation | Universal multi-pin plug and display connector for standardizing signals transmitted between a computer and a display for a PC theatre interconnectivity system |
US6437828B1 (en) | 1997-09-30 | 2002-08-20 | Koninklijke Philips Electronics N.V. | Line-quadrupler in home theater uses line-doubler of AV-part and scaler in graphics controller of PC-part |
US6337717B1 (en) * | 1997-11-21 | 2002-01-08 | Xsides Corporation | Alternate display content controller |
JP2000250834A (ja) * | 1999-02-26 | 2000-09-14 | Nec Corp | 通信網管理システムの管理部品管理装置、通信システム及びコンピュータ可読記録媒体 |
US6326935B1 (en) * | 1999-09-28 | 2001-12-04 | Gateway, Inc. | Method and apparatus for changing the mode of a display apparatus |
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2004
- 2004-05-31 JP JP2004161776A patent/JP4153462B2/ja not_active Expired - Fee Related
-
2005
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- 2005-05-18 US US10/908,600 patent/US7675574B2/en active Active
- 2005-05-26 WO PCT/JP2005/009657 patent/WO2005116975A1/ja active Application Filing
- 2005-05-26 DE DE112005001224T patent/DE112005001224T5/de not_active Ceased
- 2005-05-26 GB GB0623633A patent/GB2438270B/en active Active
- 2005-05-26 CN CNB2005800145917A patent/CN100518266C/zh active Active
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JP2013174665A (ja) * | 2012-02-23 | 2013-09-05 | Toshiba Corp | 情報処理装置、画質補正の制御方法およびプログラム |
Also Published As
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CN101027714A (zh) | 2007-08-29 |
US20050266923A1 (en) | 2005-12-01 |
US7675574B2 (en) | 2010-03-09 |
GB2438270A (en) | 2007-11-21 |
TWI344104B (en) | 2011-06-21 |
DE112005001224T5 (de) | 2007-05-31 |
TW200608279A (en) | 2006-03-01 |
JP2005345523A (ja) | 2005-12-15 |
GB0623633D0 (en) | 2007-01-03 |
CN100518266C (zh) | 2009-07-22 |
GB2438270B (en) | 2010-05-26 |
JP4153462B2 (ja) | 2008-09-24 |
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