JP4498243B2 - 画像読取装置及び電力制御方法 - Google Patents
画像読取装置及び電力制御方法 Download PDFInfo
- Publication number
- JP4498243B2 JP4498243B2 JP2005230087A JP2005230087A JP4498243B2 JP 4498243 B2 JP4498243 B2 JP 4498243B2 JP 2005230087 A JP2005230087 A JP 2005230087A JP 2005230087 A JP2005230087 A JP 2005230087A JP 4498243 B2 JP4498243 B2 JP 4498243B2
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- JP
- Japan
- Prior art keywords
- turned
- backlight
- image reading
- light source
- led
- 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.)
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- 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
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
- H04N1/00236—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer
-
- 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
- H04N1/00127—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture
- H04N1/00204—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server
- H04N1/00236—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer
- H04N1/00241—Connection or combination of a still picture apparatus with another apparatus, e.g. for storage, processing or transmission of still picture signals or of information associated with a still picture with a digital computer or a digital computer system, e.g. an internet server using an image reading or reproducing device, e.g. a facsimile reader or printer, as a local input to or local output from a computer using an image reading device as a local input to a computer
-
- 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
- H04N1/00885—Power supply means, e.g. arrangements for the control of power supply to the apparatus or components thereof
- H04N1/00888—Control thereof
-
- 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
- H04N1/00885—Power supply means, e.g. arrangements for the control of power supply to the apparatus or components thereof
- H04N1/00901—Using different supplies or connection to an external supply
-
- 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
- H04N1/00885—Power supply means, e.g. arrangements for the control of power supply to the apparatus or components thereof
- H04N1/00904—Arrangements for supplying power to different circuits or for supplying power at different levels
-
- 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
- H04N1/00885—Power supply means, e.g. arrangements for the control of power supply to the apparatus or components thereof
-
- 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
- H04N2201/0008—Connection or combination of a still picture apparatus with another apparatus
- H04N2201/001—Sharing resources, e.g. processing power or memory, with a connected apparatus or enhancing the capability of the still picture apparatus
-
- 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
- H04N2201/0008—Connection or combination of a still picture apparatus with another apparatus
- H04N2201/0034—Details of the connection, e.g. connector, interface
- H04N2201/0037—Topological details of the connection
- H04N2201/0041—Point to point
-
- 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
- H04N2201/0008—Connection or combination of a still picture apparatus with another apparatus
- H04N2201/0034—Details of the connection, e.g. connector, interface
- H04N2201/0048—Type of connection
- H04N2201/0049—By wire, cable or the like
-
- 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
- H04N2201/0077—Types of the still picture apparatus
- H04N2201/0081—Image reader
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Computing Systems (AREA)
- Facsimile Scanning Arrangements (AREA)
- Light Sources And Details Of Projection-Printing Devices (AREA)
- Facsimiles In General (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Description
110 LCD
202 赤色LED
203 緑色LED
204 青色LED
410 LCDバックライト光源LED
413 タイミング信号発生回路
414 CPU
Claims (11)
- 外部装置から電力供給を受けて駆動し原稿に記録された画像を読み取る画像読取装置であって、
前記原稿に光源の光を間歇的に照射して前記原稿に記録された画像を光学的に読み取る読取手段と、
前記読取に関連した情報をバックライトを点灯させることにより画面に表示する表示手段と、
前記読取手段による画像読取動作中において、前記光源が消灯している期間に前記バックライトを点灯させ、前記光源が点灯している期間に前記バックライトを消灯させ、前記光源と前記バックライトとが同時に発光することがないように制御する点灯制御手段とを有することを特徴とする画像読取装置。 - 前記読取手段の光源として、赤色LEDと緑色LEDと青色LEDとを用いることを特徴とする請求項1に記載の画像読取装置。
- 前記画像読取の読取一周期毎に、前記赤色LEDと緑色LEDと青色LEDを時分割に順次点灯するよう制御する読取制御手段をさらに有することを特徴とする請求項2に記載の画像読取装置。
- 前記読取手段は、
前記赤色LEDと緑色LEDと青色LEDとからなる光源と、前記光源からの光を前記原稿に対して均一に照射する導光対と、前記原稿からの反射光を各画素毎に集光するセルフォックレンズとを含むコンタクトイメージセンサと、
前記コンタクトイメージセンサを所定の方向に走査する走査手段とを有することを特徴とする請求項2又は3に記載の画像読取装置。 - 前記セルフォックレンズの各セルは前記走査手段による走査方向とは直角の方向に配列していることを特徴とする請求項4に記載の画像読取装置。
- 前記表示手段はLCDを含み、
前記バックライトは前記LCDのバックライト光源となるLEDであることを特徴とする請求項1乃至5のいずれかに記載の画像読取装置。 - 前記点灯制御手段は、前記読取一周期毎に、前記赤色LEDと緑色LEDと青色LEDの全ての点灯が終了後に、前記バックライトを点灯させるように制御することを特徴とする請求項3に記載の画像読取装置。
- 前記点灯制御手段は、前記読取一周期毎に、前記赤色LEDと前記緑色LEDの点灯期間の間と、前記緑色LEDと前記青色LEDの点灯期間の間と、前記青色LEDの点灯が終了後に、前記バックライトを点灯させるように制御することを特徴とする請求項3に記載の画像読取装置。
- 前記点灯制御手段は、
前記バックライトによる光量を指示する指示手段と、
前記指示手段による指示に従って、前記光源が消灯している期間に前記バックライトの点灯時間を調整する調整手段とを有することを特徴とする請求項1乃至8のいずれかに記載の画像読取装置。 - 前記外部装置からの電力供給は、USBバスを介してなされることを特徴とする請求項1乃至9のいずれかに記載の画像読取装置。
- 外部装置から電力供給を受けて駆動し、原稿に光源の光を間歇的に照射して前記原稿に記録された画像を光学的に読み取る読取手段と前記読取に関連した情報をバックライトを点灯させることにより画面に表示する表示手段とを備えた画像読取装置における電力制御方法であって、
前記読取手段による画像読取動作中において、前記光源が消灯している期間に前記バックライトを点灯させ、前記光源が点灯している期間に前記バックライトを消灯させ、前記光源と前記バックライトとが同時に発光することがないように制御することを特徴とする電力制御方法。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005230087A JP4498243B2 (ja) | 2005-08-08 | 2005-08-08 | 画像読取装置及び電力制御方法 |
US11/461,881 US8238002B2 (en) | 2005-08-08 | 2006-08-02 | Image reading apparatus and power control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2005230087A JP4498243B2 (ja) | 2005-08-08 | 2005-08-08 | 画像読取装置及び電力制御方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007049316A JP2007049316A (ja) | 2007-02-22 |
JP4498243B2 true JP4498243B2 (ja) | 2010-07-07 |
Family
ID=37717365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2005230087A Expired - Fee Related JP4498243B2 (ja) | 2005-08-08 | 2005-08-08 | 画像読取装置及び電力制御方法 |
Country Status (2)
Country | Link |
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US (1) | US8238002B2 (ja) |
JP (1) | JP4498243B2 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101281198B1 (ko) * | 2006-09-12 | 2013-07-03 | 삼성전자주식회사 | 스캐닝 장치 및 이를 구비한 화상형성장치 |
US9241082B2 (en) * | 2011-08-20 | 2016-01-19 | Darwin Hu | Method and apparatus for scanning through a display screen |
JP2013066132A (ja) * | 2011-09-20 | 2013-04-11 | Fuji Xerox Co Ltd | 画像読取装置、画像形成装置、及びプログラム |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS611164A (ja) * | 1984-06-14 | 1986-01-07 | Toshiba Corp | 画像形成装置 |
JPH05346570A (ja) | 1992-06-15 | 1993-12-27 | Seiko Instr Inc | 液晶表示装置 |
US5652663A (en) * | 1994-07-29 | 1997-07-29 | Polaroid Corporation | Preview buffer for electronic scanner |
US5736973A (en) * | 1995-11-01 | 1998-04-07 | Digital Ocean, Inc. | Integrated backlight display system for a personal digital assistant |
JP3507284B2 (ja) * | 1997-06-24 | 2004-03-15 | キヤノン株式会社 | ロッドレンズアレイ及び密着型イメージセンサ及び画像読取装置 |
US6157027A (en) * | 1998-12-01 | 2000-12-05 | Nec Usa, Inc. | Modular optical fiber color image scanner with all-optical scanner head having side-coupled light guide for providing illumination light to the scanner head |
JP2002016744A (ja) | 2000-06-30 | 2002-01-18 | Asahi Optical Co Ltd | 画像入力装置 |
TWI221385B (en) * | 2001-05-31 | 2004-09-21 | Mustek Systems Inc | CCD type scanner powered by a serial bus |
JP2004007241A (ja) * | 2002-05-31 | 2004-01-08 | Fujitsu Ltd | 画像読取装置 |
US7796310B2 (en) * | 2007-10-31 | 2010-09-14 | Canon Denshi Kabushiki Kaisha | Image reading apparatus and control method therefor, as well as storage medium |
-
2005
- 2005-08-08 JP JP2005230087A patent/JP4498243B2/ja not_active Expired - Fee Related
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2006
- 2006-08-02 US US11/461,881 patent/US8238002B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20070030530A1 (en) | 2007-02-08 |
US8238002B2 (en) | 2012-08-07 |
JP2007049316A (ja) | 2007-02-22 |
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