DE3785440D1 - Optische abtastvorrichtung mit ortungsfuehlern. - Google Patents

Optische abtastvorrichtung mit ortungsfuehlern.

Info

Publication number
DE3785440D1
DE3785440D1 DE8787904768T DE3785440T DE3785440D1 DE 3785440 D1 DE3785440 D1 DE 3785440D1 DE 8787904768 T DE8787904768 T DE 8787904768T DE 3785440 T DE3785440 T DE 3785440T DE 3785440 D1 DE3785440 D1 DE 3785440D1
Authority
DE
Germany
Prior art keywords
optical scanner
location probe
probe
location
scanner
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
DE8787904768T
Other languages
English (en)
Other versions
DE3785440T2 (de
Inventor
A Figueroa
George White
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3785440D1 publication Critical patent/DE3785440D1/de
Publication of DE3785440T2 publication Critical patent/DE3785440T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304—Detection arrangements using opto-electronic means
    • G06F3/0317—Detection arrangements using opto-electronic means in co-operation with a patterned surface, e.g. absolute position or relative movement detection for an optical mouse or pen positioned with respect to a coded surface
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • 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
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03543—Mice or pucks
    • G06F3/03544—Mice or pucks having dual sensing arrangement, e.g. two balls or two coils used to track rotation of the pointing device
    • 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
    • H04N1/107—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 manual scanning
    • 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
    • H04N1/107—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 manual scanning
    • H04N1/1072—Means for guiding the scanning, e.g. rules
    • 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
    • H04N2201/04715—Detection of scanning velocity or position by detecting marks or the like, e.g. slits
    • H04N2201/04717—Detection of scanning velocity or position by detecting marks or the like, e.g. slits on the scanned sheet, e.g. a reference sheet
    • 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
    • H04N2201/04715—Detection of scanning velocity or position by detecting marks or the like, e.g. slits
    • H04N2201/04727—Detection of scanning velocity or position by detecting marks or the like, e.g. slits on a linear encoder
    • 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
DE8787904768T 1986-07-23 1987-07-02 Optische abtastvorrichtung mit ortungsfuehlern. Expired - Lifetime DE3785440T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/889,130 US4797544A (en) 1986-07-23 1986-07-23 Optical scanner including position sensors
PCT/US1987/001582 WO1988000712A1 (en) 1986-07-23 1987-07-02 Optical scanner including position sensors

Publications (2)

Publication Number Publication Date
DE3785440D1 true DE3785440D1 (de) 1993-05-19
DE3785440T2 DE3785440T2 (de) 1993-07-29

Family

ID=25394552

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787904768T Expired - Lifetime DE3785440T2 (de) 1986-07-23 1987-07-02 Optische abtastvorrichtung mit ortungsfuehlern.

Country Status (6)

Country Link
US (1) US4797544A (de)
EP (1) EP0277964B1 (de)
JP (1) JPH01500553A (de)
AU (1) AU593934B2 (de)
DE (1) DE3785440T2 (de)
WO (1) WO1988000712A1 (de)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0626411B2 (ja) * 1988-05-19 1994-04-06 ニスカ株式会社 画像読取装置のインターフェース回路
US4984287A (en) * 1988-11-15 1991-01-08 Msc Technologies, Inc. Method for orienting a dual mouse optical scanner
US5015070A (en) * 1989-03-14 1991-05-14 Mouse Systems Corporation Reference grid for optical scanner
US5239759A (en) * 1989-04-28 1993-08-31 Dudek Raymond A Image scanner guide
GB8917091D0 (en) * 1989-07-26 1989-09-13 Martin Moffatt Ltd Image reader and cursor
EP0451220A4 (en) * 1989-10-02 1993-01-07 Automated Decisions, Inc. Orientational mouse computer input system
US6115543A (en) * 1989-11-01 2000-09-05 Canon Kabushiki Kaisha Data communication apparatus having a handy scanner
US4996775A (en) * 1989-11-06 1991-03-05 William Sass Image reader guide
US5355146A (en) * 1990-03-05 1994-10-11 Bmc Micro-Industries Ltd. Multi-directional hand scanner and mouse
US5132673A (en) * 1990-03-06 1992-07-21 Digi-Rule Inc. Hand held digitizer
GB9024951D0 (en) * 1990-11-16 1991-01-02 Isis Innovation Apparatus and method for digitising coordinates
US5295003A (en) * 1991-03-13 1994-03-15 Lee Aldric K Color conversion system for monochromatic optical scanner
US5589951A (en) * 1991-07-04 1996-12-31 Woydich; Horst Pad for use in scanning data stored on a flat surface
US5402251A (en) * 1991-07-26 1995-03-28 Kabushiki Kaisha Toshiba Image reading apparatus with separated scanner
US5182450A (en) * 1991-11-06 1993-01-26 Primax Electronics Ltd. Handheld image scanner with automatic movement control
US5420943A (en) * 1992-04-13 1995-05-30 Mak; Stephen M. Universal computer input device
CA2097360A1 (en) * 1992-06-03 1993-12-04 Paul Dvorkis Optical readers
IL106401A (en) * 1992-08-07 1997-02-18 Donnelley & Sons Co Method and system for converting bitmap data into page definition language commands
US5446559A (en) * 1992-10-05 1995-08-29 Hewlett-Packard Company Method and apparatus for scanning and printing
JPH06338987A (ja) * 1993-05-31 1994-12-06 Sony Corp スキャナ装置
US5539532A (en) * 1993-08-12 1996-07-23 Nec Corporation Image reading apparatus with varied subscanning speed
US5818610A (en) * 1994-09-21 1998-10-06 B.C. Labs, Inc. Scanner frame
US5729283A (en) * 1994-12-12 1998-03-17 Vision Technology, Inc. Holder for reading device for the visually impaired
US5578813A (en) * 1995-03-02 1996-11-26 Allen; Ross R. Freehand image scanning device which compensates for non-linear movement
IL114367A (en) * 1995-06-27 1999-11-30 Wizcom Technologies Ltd Hand-holdable optical scanner particularly useful as electronic translator
US5786804A (en) 1995-10-06 1998-07-28 Hewlett-Packard Company Method and system for tracking attitude
US6950094B2 (en) 1998-03-30 2005-09-27 Agilent Technologies, Inc Seeing eye mouse for a computer system
US5595445A (en) * 1995-12-27 1997-01-21 Bobry; Howard H. Hand-held optical scanner
CA2189700C (en) * 1995-12-27 2000-06-20 Alexander George Dickinson Combination mouse and area imager
US5769384A (en) * 1996-01-25 1998-06-23 Hewlett-Packard Company Low differential light level photoreceptors
EP0873003B1 (de) 1997-04-14 2007-03-21 Hewlett-Packard Company, A Delaware Corporation Verfahren und Vorrichtung zur Bildabtastung
DE69816185T2 (de) 1997-06-12 2004-04-15 Hewlett-Packard Co. (N.D.Ges.D.Staates Delaware), Palo Alto Bildverarbeitungsverfahren und -vorrichtung
US5999666A (en) * 1997-09-09 1999-12-07 Gobeli; Garth W. Device and method for optical scanning of text
AU758036B2 (en) * 1998-04-30 2003-03-13 C Technologies Ab Input unit, method for using the same and input system
US6906699B1 (en) 1998-04-30 2005-06-14 C Technologies Ab Input unit, method for using the same and input system
US5994710A (en) * 1998-04-30 1999-11-30 Hewlett-Packard Company Scanning mouse for a computer system
US6330082B1 (en) 1998-08-28 2001-12-11 Hewlett-Packard Company Converter for optical scanner
US6403941B1 (en) * 1998-10-29 2002-06-11 Hewlett-Packard Company Image scanner with real time pixel resampling
US6303924B1 (en) 1998-12-21 2001-10-16 Microsoft Corporation Image sensing operator input device
US6300645B1 (en) * 1999-08-25 2001-10-09 Hewlett-Packard Company Position sensing device having a single photosensing element
SE0000939L (sv) * 2000-02-18 2001-08-19 Anoto Ab Inenhetsarrangemang
US6844871B1 (en) * 1999-11-05 2005-01-18 Microsoft Corporation Method and apparatus for computer input using six degrees of freedom
US6414293B1 (en) * 1999-11-12 2002-07-02 Hewlett-Packard Company Optical position sensing device and method using a contoured transparent sheet
US6885878B1 (en) 2000-02-16 2005-04-26 Telefonaktiebolaget L M Ericsson (Publ) Method and system for using an electronic reading device as a general application input and navigation interface
US6832116B1 (en) 2000-02-16 2004-12-14 Telefonaktiebolaget L M Ericsson (Publ) Method and system for controlling an electronic utility device using an electronic reading device
US6952497B1 (en) 2000-02-16 2005-10-04 Telefonaktiebolaget L M Ericsson (Publ) Method and system for electronically recording transactions and performing security function
US6693623B1 (en) 2000-02-16 2004-02-17 Telefonaktiebolaget Lm Ericsson (Publ) Measuring applications for an electronic reading device
US6593908B1 (en) 2000-02-16 2003-07-15 Telefonaktiebolaget Lm Ericsson (Publ) Method and system for using an electronic reading device on non-paper devices
US6813396B1 (en) 2000-02-16 2004-11-02 Telefonatiebolaget L.M. Ericsson (Publ) Method for sharing information between electronic reading devices
US6738053B1 (en) 2000-02-16 2004-05-18 Telefonaktiebolaget Lm Ericsson (Publ) Predefined electronic pen applications in specially formatted paper
US6839623B1 (en) 2000-02-16 2005-01-04 Telefonaktiebolaget Lm Ericsson (Publ) Positioning applications for an electronic reading device
AU2001230255A1 (en) * 2000-02-16 2001-08-27 Telefonaktiebolaget Lm Ericsson (Publ) Printer pen
EP1256047A2 (de) * 2000-02-16 2002-11-13 Telefonaktiebolaget LM Ericsson (publ) Lesevorrichtung mit mehreren schichten
US6611259B1 (en) 2000-02-16 2003-08-26 Telefonaktiebolaget Lm Ericsson (Publ) System and method for operating an electronic reading device user interface
US7054487B2 (en) * 2000-02-18 2006-05-30 Anoto Ip Lic Handelsbolag Controlling and electronic device
US6854821B2 (en) * 2000-04-05 2005-02-15 Anoto Ab Systems and methods for printing by using a position-coding pattern
WO2002013126A2 (de) * 2001-08-08 2002-02-14 Anitra Medienprojekte Gmbh Träger und verfahren zur erstellung positionsgebender vorlagen mit zugehörigem lesegerät
GB0202857D0 (en) * 2002-02-07 2002-03-27 Reid Thomas N Computer mouse assembly
DE10205001A1 (de) * 2002-02-07 2003-08-28 Bosch Gmbh Robert Handgeführtes Gerät
KR100457380B1 (ko) * 2002-05-06 2004-11-16 삼성전기주식회사 광마우스용 칩 온 보드 리드 패키지 및 그에 사용되는렌즈커버
EP1410916A1 (de) * 2002-10-18 2004-04-21 Hewlett-Packard Company Hybrides Druck-/Zeigegerät
US8217896B2 (en) * 2003-07-31 2012-07-10 Kye Systems Corporation Computer input device for automatically scrolling
US7423227B2 (en) 2003-09-04 2008-09-09 Avago Technologies Ecbu Ip Pte Ltd Apparatus for optical navigation
US20050057510A1 (en) * 2003-09-16 2005-03-17 Baines Donald A. Scanning optical mouse
NO20050783L (no) * 2005-02-14 2006-08-15 Applica Attend As Hjelpemiddel for lesehemmede
US7679546B2 (en) * 2006-09-20 2010-03-16 Techtronic Power Tools Technology Limited Apparatus and method of determining location of an object
US8253619B2 (en) * 2005-02-15 2012-08-28 Techtronic Power Tools Technology Limited Electromagnetic scanning imager
KR100783504B1 (ko) * 2006-06-01 2007-12-07 김수진 투명필름을 이용한 전자도서 및 도서 인식 방법
JP4612909B2 (ja) * 2008-01-23 2011-01-12 キヤノン株式会社 制御方法及び情報処理装置及びコンピュータ読み出し可能な記録媒体
US9058067B2 (en) * 2008-04-03 2015-06-16 Livescribe Digital bookclip
US8339467B2 (en) * 2010-03-25 2012-12-25 Dacuda Ag Synchronization of navigation and image information for handheld scanner
US8441696B2 (en) * 2009-05-20 2013-05-14 Dacuda Ag Continuous scanning with a handheld scanner
US8441695B2 (en) * 2009-05-20 2013-05-14 Dacuda Ag Handheld scanner with high image quality
US20100296133A1 (en) * 2009-05-20 2010-11-25 Dacuda Ag Mode switching in a handheld scanner
US9300834B2 (en) * 2009-05-20 2016-03-29 Dacuda Ag Image processing for handheld scanner
US8582182B2 (en) * 2009-05-20 2013-11-12 Dacuda Ag Automatic sizing of images acquired by a handheld scanner
KR101396373B1 (ko) * 2009-05-28 2014-05-19 켄트 디스플레이스 인코포레이티드 쓰기용 태블릿 정보 기록 장치
US8497840B2 (en) 2010-03-25 2013-07-30 Dacuda Ag Computer peripheral for scanning
EP3703001A1 (de) 2013-08-31 2020-09-02 ML Netherlands C.V. Benutzerfeedback zur echtzeitüberwachung und verbesserung der qualität eines abgetasteten bildes
EP3540683A1 (de) 2013-12-03 2019-09-18 ML Netherlands C.V. Benutzerfeedback zur echtzeitüberwachung und verbesserung der qualität eines abgetasteten bildes
US10708491B2 (en) 2014-01-07 2020-07-07 Ml Netherlands C.V. Adaptive camera control for reducing motion blur during real-time image capture
WO2015104235A1 (en) 2014-01-07 2015-07-16 Dacuda Ag Dynamic updating of composite images
WO2015173173A1 (en) 2014-05-12 2015-11-19 Dacuda Ag Method and apparatus for scanning and printing a 3d object

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5484416A (en) * 1977-12-19 1979-07-05 Ricoh Co Ltd Meothod and device for transmission and reception of telautogram information
JPS56153212A (en) * 1980-04-30 1981-11-27 Toshiba Corp Encoder
DE3220016A1 (de) * 1982-05-27 1983-12-01 Dorner, Jörg, Dr.-Ing., 8000 München Einrichtung zur herstellung einer optisch bzw. elektronisch oder magnetisch gespeicherten bildinformation einer im wesentlichen flaechigen vorlage
JPS5927663U (ja) * 1982-08-12 1984-02-21 キヤノン株式会社 画像読取り装置
JPS59114966A (ja) * 1982-12-20 1984-07-03 Konishiroku Photo Ind Co Ltd 原稿画像読込み方法
US4684998A (en) * 1983-06-15 1987-08-04 Canon Kabushiki Kaisha Image reader suitable for manual scanning
SE446801B (sv) * 1983-09-20 1986-10-06 Hasselblad Ab Victor Anordning for framstellning av elektronisk, digital bildinformation
KR920002254B1 (ko) * 1983-12-05 1992-03-20 닛신 고오기 가부시끼가이샤 광학식 마우스
JPS60146321A (ja) * 1984-01-09 1985-08-02 Matsushita Electric Ind Co Ltd 画像読取装置
US4799055A (en) * 1984-04-26 1989-01-17 Symbolics Inc. Optical Mouse
JPS60246429A (ja) * 1984-05-22 1985-12-06 Nec Corp 相対的磁場安定化磁歪板
US4555733A (en) * 1984-05-25 1985-11-26 The Perkin-Elmer Corporation Image acquisition system
JPS6113860A (ja) * 1984-06-29 1986-01-22 Toshiba Corp 情報読取り装置
JPS6143328A (ja) * 1984-08-07 1986-03-01 Nippon Denki Kaigai Shijiyou Kaihatsu Kk 光デイジタイザ
JPS61102866A (ja) * 1984-10-26 1986-05-21 Ricoh Co Ltd 画像読取装置
JPS61105954A (ja) * 1984-10-30 1986-05-24 Toshiba Corp ハンドスキヤナ入力方式
US4686329A (en) * 1985-06-21 1987-08-11 Advanced Robotic Technology, Inc. Absolute position mouse

Also Published As

Publication number Publication date
JPH01500553A (ja) 1989-02-23
WO1988000712A1 (en) 1988-01-28
JPH046150B2 (de) 1992-02-04
EP0277964B1 (de) 1993-04-14
DE3785440T2 (de) 1993-07-29
EP0277964A4 (de) 1990-01-29
AU7753387A (en) 1988-02-10
AU593934B2 (en) 1990-02-22
US4797544A (en) 1989-01-10
EP0277964A1 (de) 1988-08-17

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