CA2021851A1 - Scanner de documents asynchrone-synchrone - Google Patents
Scanner de documents asynchrone-synchroneInfo
- Publication number
- CA2021851A1 CA2021851A1 CA2021851A CA2021851A CA2021851A1 CA 2021851 A1 CA2021851 A1 CA 2021851A1 CA 2021851 A CA2021851 A CA 2021851A CA 2021851 A CA2021851 A CA 2021851A CA 2021851 A1 CA2021851 A1 CA 2021851A1
- Authority
- CA
- Canada
- Prior art keywords
- array
- document scanner
- lines
- interpolator
- image signals
- 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.)
- Granted
Links
- 239000002131 composite material Substances 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
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
- H04N1/40056—Circuits for driving or energising particular reading heads or original illumination means
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/047—Detection, control or error compensation of scanning velocity or position
- H04N1/0473—Detection, control or error compensation of scanning velocity or position in subscanning direction, e.g. picture start or line-to-line synchronisation
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/10—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces
- H04N1/1013—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components
- H04N1/1017—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using flat picture-bearing surfaces with sub-scanning by translatory movement of at least a part of the main-scanning components the main-scanning components remaining positionally invariant with respect to one another in the sub-scanning direction
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/192—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line
- H04N1/193—Simultaneously or substantially simultaneously scanning picture elements on one main scanning line using electrically scanned linear arrays, e.g. linear CCD arrays
-
- 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
- H04N2201/024—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof deleted
- H04N2201/02406—Arrangements for positioning elements within a head
- H04N2201/02439—Positioning method
-
- 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
- H04N2201/04—Scanning arrangements
- H04N2201/0402—Arrangements not specific to a particular one of the scanning methods covered by groups H04N1/04 - H04N1/207
- H04N2201/0458—Additional arrangements for improving or optimising scanning resolution or quality
-
- 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
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/0471—Detection of scanning velocity or position using dedicated detectors
-
- 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
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04734—Detecting at frequent intervals, e.g. once per line for sub-scan control
-
- 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
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04701—Detection of scanning velocity or position
- H04N2201/04739—Detection of scanning velocity or position by detecting the scanning head or scanning carriage
-
- 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
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04758—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area
- H04N2201/04787—Control or error compensation of scanning position or velocity by controlling the position of the scanned image area by changing or controlling the addresses or values of pixels, e.g. in an array, in a memory, by interpolation
-
- 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
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04794—Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Facsimile Image Signal Circuits (AREA)
- Image Input (AREA)
- Editing Of Facsimile Originals (AREA)
- Image Processing (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/389,249 US5043827A (en) | 1989-08-03 | 1989-08-03 | Combined asynchronous-synchronous document scanner |
US389249 | 1989-08-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2021851A1 true CA2021851A1 (fr) | 1991-02-04 |
CA2021851C CA2021851C (fr) | 1995-01-03 |
Family
ID=23537466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002021851A Expired - Fee Related CA2021851C (fr) | 1989-08-03 | 1990-07-24 | Scanner de documents asynchrone-synchrone |
Country Status (5)
Country | Link |
---|---|
US (1) | US5043827A (fr) |
EP (1) | EP0411954B1 (fr) |
JP (1) | JPH0614660B2 (fr) |
CA (1) | CA2021851C (fr) |
DE (1) | DE69029690T2 (fr) |
Families Citing this family (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5264949A (en) * | 1991-05-20 | 1993-11-23 | Xerox Corporation | Scanning carriage drive and image timing |
US5640465A (en) * | 1992-02-14 | 1997-06-17 | Smitt; Asbjorn | Method and apparatus for on-line tiled thresholding in scanners based on prescan |
US5369504A (en) * | 1992-04-09 | 1994-11-29 | Xerox Corporation | Method and apparatus for reducing image distortion in an asynchronous input scanner |
JPH06121126A (ja) * | 1992-10-02 | 1994-04-28 | Canon Inc | ファクシミリ装置 |
US5732162A (en) * | 1993-10-28 | 1998-03-24 | Xerox Corporation | Two dimensional linearity and registration error correction in a hyperacuity printer |
US5572335A (en) * | 1994-04-01 | 1996-11-05 | Xerox Corporation | Method and system for transferring image data between two devices having different bandwidths |
US5642207A (en) * | 1994-09-16 | 1997-06-24 | Contex A/S | Color scanner with variable line resolution |
JPH08274956A (ja) * | 1995-03-30 | 1996-10-18 | Nec Corp | イメージスキャナ |
US5687009A (en) * | 1995-09-28 | 1997-11-11 | Xerox Corporation | Device and method for maintaining image scanner data output rate without regard to scanline length while maintaining a constant integration time |
US5604608A (en) * | 1995-09-28 | 1997-02-18 | Xerox Corporation | Device and method for controlling the scan speed of an image input terminal to match the throughput constraints of an image processing module |
US5760919A (en) * | 1995-12-01 | 1998-06-02 | Xerox Corporation | Duplex documents scanner with alternating scan lines from dual imaging stations |
US5991055A (en) * | 1996-09-23 | 1999-11-23 | Hewlett-Packard Company | Underpulsed scanner with variable scan speed, P. W. M. color balance, scan modes and column reversal |
JPH11127316A (ja) | 1997-10-22 | 1999-05-11 | Konica Corp | 画像形成方法及び画像形成装置 |
US6170751B1 (en) * | 1998-05-06 | 2001-01-09 | Microtek International Inc. | Scanning module with variable optical paths for generating different scanning resolution |
US6211975B1 (en) | 1998-08-14 | 2001-04-03 | Eastman Kodak Company | Method and apparatus for controlling image data transfer in a photographic film scanner |
US6462842B1 (en) | 1998-10-06 | 2002-10-08 | National Semiconductor Corporation | Apparatus, method, and computer program for increasing scanner data throughput |
JP4501167B2 (ja) * | 1998-11-09 | 2010-07-14 | コニカミノルタビジネステクノロジーズ株式会社 | 画像処理システム |
US6369918B1 (en) | 1999-02-08 | 2002-04-09 | National Semiconductor Corporation | Apparatus, method, and computer program to reduce distortion of scanner restarts |
US6278101B1 (en) * | 1999-08-05 | 2001-08-21 | Hewlett Packard Company | Method for increasing the native resolution of an image sensor |
US20030007089A1 (en) * | 2001-01-12 | 2003-01-09 | Anteon Corporation | Opto-electronic video compression system |
US7561076B2 (en) * | 2005-04-29 | 2009-07-14 | Freescale Semiconductor, Inc. | Front-end method for NICAM encoding |
US7109906B1 (en) * | 2005-04-29 | 2006-09-19 | Freescale Semiconductor, Inc. | NICAM encoder featuring synchronization of a NICAM processor with front-end input and output sections |
US7653448B2 (en) * | 2005-09-30 | 2010-01-26 | Freescale Semiconductor, Inc. | NICAM processing method |
JP5194885B2 (ja) * | 2008-02-29 | 2013-05-08 | 株式会社リコー | 画像読み取り装置及び画像形成装置 |
KR101590881B1 (ko) * | 2008-12-24 | 2016-02-02 | 삼성전자 주식회사 | 화상처리장치 및 그 제어방법 |
JP5347536B2 (ja) * | 2009-01-28 | 2013-11-20 | セイコーエプソン株式会社 | 情報処理装置 |
CN102414621B (zh) * | 2009-03-06 | 2014-12-10 | 麦克罗尼克迈达塔有限责任公司 | 扫掠期间剂量可变的转子光学部件成像方法及系统 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1157143A (fr) * | 1978-06-21 | 1983-11-15 | James C. Stoffel | Systeme d'interpolation d'images |
JPS57208765A (en) * | 1981-06-18 | 1982-12-21 | Dainippon Screen Mfg Co Ltd | Signal interpolating method for memory device |
JPS58108885A (ja) * | 1981-12-23 | 1983-06-29 | Nippon Kogaku Kk <Nikon> | 静止画像信号変換装置 |
US4680720A (en) * | 1983-10-17 | 1987-07-14 | Kabushiki Kaisha Toshiba | Dot interpolation control system |
JPS6093878A (ja) * | 1983-10-28 | 1985-05-25 | Canon Inc | 画像読取装置 |
US4591727A (en) * | 1983-11-14 | 1986-05-27 | International Business Machines Corporation | Solid state scanner for a variable speed transport |
JPS60208164A (ja) * | 1984-03-30 | 1985-10-19 | Canon Inc | 記録装置 |
JPH0799868B2 (ja) * | 1984-12-26 | 1995-10-25 | 日本放送協会 | 固体撮像装置 |
US4644409A (en) * | 1985-02-26 | 1987-02-17 | Advanced Micro Devices, Inc. | Document resolution-adaption method and apparatus |
US4712141A (en) * | 1985-03-30 | 1987-12-08 | Dainippon Screen Mfg. Co., Ltd. | Method and apparatus for interpolating image signals |
DE3869200D1 (de) * | 1987-05-22 | 1992-04-23 | Oki Electric Ind Co Ltd | Bildabtaster vom kontakt-typ. |
US4771333A (en) * | 1987-06-15 | 1988-09-13 | Xerox Corporation | System for minimizing residual charge carryover in an asynchronous raster input scanner |
US4878119A (en) * | 1988-02-29 | 1989-10-31 | Xerox Corporation | System for synchronizing integration pulses with integration signal in an asynchronous raster input scanner |
-
1989
- 1989-08-03 US US07/389,249 patent/US5043827A/en not_active Expired - Lifetime
-
1990
- 1990-07-24 CA CA002021851A patent/CA2021851C/fr not_active Expired - Fee Related
- 1990-08-03 DE DE69029690T patent/DE69029690T2/de not_active Expired - Lifetime
- 1990-08-03 JP JP2206635A patent/JPH0614660B2/ja not_active Expired - Fee Related
- 1990-08-03 EP EP90308554A patent/EP0411954B1/fr not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5043827A (en) | 1991-08-27 |
DE69029690T2 (de) | 1997-07-10 |
EP0411954B1 (fr) | 1997-01-15 |
EP0411954A2 (fr) | 1991-02-06 |
JPH03143070A (ja) | 1991-06-18 |
JPH0614660B2 (ja) | 1994-02-23 |
EP0411954A3 (en) | 1992-09-09 |
CA2021851C (fr) | 1995-01-03 |
DE69029690D1 (de) | 1997-02-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |