WO2002017222A3 - Digital pen - Google Patents

Digital pen Download PDF

Info

Publication number
WO2002017222A3
WO2002017222A3 PCT/GB2001/003333 GB0103333W WO0217222A3 WO 2002017222 A3 WO2002017222 A3 WO 2002017222A3 GB 0103333 W GB0103333 W GB 0103333W WO 0217222 A3 WO0217222 A3 WO 0217222A3
Authority
WO
WIPO (PCT)
Prior art keywords
signals
pen
paper
detectors
writing tip
Prior art date
Application number
PCT/GB2001/003333
Other languages
French (fr)
Other versions
WO2002017222A2 (en
Inventor
Barton Allen Smith
Thomas Guthrie Zimmerman
Original Assignee
Ibm
Ibm Uk
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 Ibm, Ibm Uk filed Critical Ibm
Priority to JP2002521216A priority Critical patent/JP2004506994A/en
Priority to AU2001272672A priority patent/AU2001272672A1/en
Priority to EP01951823A priority patent/EP1312042A2/en
Priority to KR1020037002314A priority patent/KR100590375B1/en
Publication of WO2002017222A2 publication Critical patent/WO2002017222A2/en
Publication of WO2002017222A3 publication Critical patent/WO2002017222A3/en

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354Pointing 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354Pointing 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
    • G06F3/03545Pens or stylus
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/0304Detection arrangements using opto-electronic means
    • G06F3/0317Detection 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
    • G06F3/0321Detection 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 by optically sensing the absolute position with respect to a regularly patterned surface forming a passive digitiser, e.g. pen optically detecting position indicative tags printed on a paper sheet
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/01Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/042Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means

Abstract

A digital pen that has an ink writing tip includes a laser on a pen body that directs light toward paper across which the writing tip is stroked. A diffraction grating reflects a reference beam and passes a scattered beam from the substrate toward translation detectors, which consequently receive interference patterns of light. A processor receives the signals from the detectors, generates position signals, and stores the signals. Also, a bar code detector receives a bar code beam from the substrate, and a three dimensional force sensor outputs a signal representative of multidimensional forces applied to the pen. Subsequently, the signals are uploaded to a host processor which combines them to produce rotation-corrected relative positions (if no bar coded paper is used) or rotation- corrected absolute positions (if bar coded paper is used) that can be used to render alpha-numeric characters or graphical representations.
PCT/GB2001/003333 2000-08-23 2001-07-23 Digital pen WO2002017222A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002521216A JP2004506994A (en) 2000-08-23 2001-07-23 Digital pen
AU2001272672A AU2001272672A1 (en) 2000-08-23 2001-07-23 Digital pen
EP01951823A EP1312042A2 (en) 2000-08-23 2001-07-23 Digital pen
KR1020037002314A KR100590375B1 (en) 2000-08-23 2001-07-23 Digital pen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/644,809 2000-08-23
US09/644,809 US6592039B1 (en) 2000-08-23 2000-08-23 Digital pen using interferometry for relative and absolute pen position

Publications (2)

Publication Number Publication Date
WO2002017222A2 WO2002017222A2 (en) 2002-02-28
WO2002017222A3 true WO2002017222A3 (en) 2002-12-27

Family

ID=24586422

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/003333 WO2002017222A2 (en) 2000-08-23 2001-07-23 Digital pen

Country Status (9)

Country Link
US (1) US6592039B1 (en)
EP (1) EP1312042A2 (en)
JP (1) JP2004506994A (en)
KR (1) KR100590375B1 (en)
CN (1) CN1636227A (en)
AU (1) AU2001272672A1 (en)
MY (1) MY125950A (en)
TW (1) TWI222027B (en)
WO (1) WO2002017222A2 (en)

Families Citing this family (70)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6686910B2 (en) * 1996-04-22 2004-02-03 O'donnell, Jr. Francis E. Combined writing instrument and digital documentor apparatus and method of use
US7091959B1 (en) * 1999-03-31 2006-08-15 Advanced Digital Systems, Inc. System, computer program product, computing device, and associated methods for form identification and information manipulation
US7167164B2 (en) * 2000-11-10 2007-01-23 Anoto Ab Recording and communication of handwritten information
US6798907B1 (en) * 2001-01-24 2004-09-28 Advanced Digital Systems, Inc. System, computer software product and method for transmitting and processing handwritten data
US20020107885A1 (en) * 2001-02-01 2002-08-08 Advanced Digital Systems, Inc. System, computer program product, and method for capturing and processing form data
US7203383B2 (en) * 2001-02-22 2007-04-10 Thinkpen Llc Handwritten character recording and recognition device
US7916124B1 (en) 2001-06-20 2011-03-29 Leapfrog Enterprises, Inc. Interactive apparatus using print media
US7013029B2 (en) * 2001-06-29 2006-03-14 Intel Corporation Incorporating handwritten notations into an electronic document
US6977187B2 (en) * 2002-06-19 2005-12-20 Foster-Miller, Inc. Chip package sealing method
US6915103B2 (en) * 2002-07-31 2005-07-05 Hewlett-Packard Development Company, L.P. System for enhancing books with special paper
US7133563B2 (en) 2002-10-31 2006-11-07 Microsoft Corporation Passive embedded interaction code
US7116840B2 (en) * 2002-10-31 2006-10-03 Microsoft Corporation Decoding and error correction in 2-D arrays
US7203384B2 (en) * 2003-02-24 2007-04-10 Electronic Scripting Products, Inc. Implement for optically inferring information from a planar jotting surface
US7321359B2 (en) 2003-07-30 2008-01-22 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Method and device for optical navigation
US20040227954A1 (en) * 2003-05-16 2004-11-18 Tong Xie Interferometer based navigation device
EP1517119B1 (en) * 2003-09-22 2008-04-09 Xitact S.A. Optical device for determining the longitudinal and angular position of a rotationally symmetrical apparatus
US7110100B2 (en) * 2003-11-04 2006-09-19 Electronic Scripting Products, Inc. Apparatus and method for determining an inclination of an elongate object contacting a plane surface
US7348968B2 (en) * 2003-12-02 2008-03-25 Sony Corporation Wireless force feedback input device
US7245952B2 (en) * 2004-01-13 2007-07-17 The University Of Toledo Noninvasive birefringence compensated sensing polarimeter
US20050156915A1 (en) * 2004-01-16 2005-07-21 Fisher Edward N. Handwritten character recording and recognition device
US7826641B2 (en) 2004-01-30 2010-11-02 Electronic Scripting Products, Inc. Apparatus and method for determining an absolute pose of a manipulated object in a real three-dimensional environment with invariant features
US9229540B2 (en) 2004-01-30 2016-01-05 Electronic Scripting Products, Inc. Deriving input from six degrees of freedom interfaces
US8542219B2 (en) * 2004-01-30 2013-09-24 Electronic Scripting Products, Inc. Processing pose data derived from the pose of an elongate object
US7961909B2 (en) 2006-03-08 2011-06-14 Electronic Scripting Products, Inc. Computer interface employing a manipulated object with absolute pose detection component and a display
US7023536B2 (en) * 2004-03-08 2006-04-04 Electronic Scripting Products, Inc. Apparatus and method for determining orientation parameters of an elongate object
US7453447B2 (en) * 2004-03-17 2008-11-18 Leapfrog Enterprises, Inc. Interactive apparatus with recording and playback capability usable with encoded writing medium
US20060067576A1 (en) * 2004-03-17 2006-03-30 James Marggraff Providing a user interface having interactive elements on a writable surface
US7161664B2 (en) 2004-04-13 2007-01-09 Electronic Scripting Products, Inc. Apparatus and method for optical determination of intermediate distances
US7048198B2 (en) * 2004-04-22 2006-05-23 Microsoft Corporation Coded pattern for an optical device and a prepared surface
US20050281437A1 (en) * 2004-05-17 2005-12-22 Renate Fruchter Talking paper
US8316068B2 (en) 2004-06-04 2012-11-20 Telefonaktiebolaget Lm Ericsson (Publ) Memory compression
US7404521B2 (en) * 2004-12-23 2008-07-29 Pitney Bowes Inc. Paper based mailing and shipping user interface
US7639876B2 (en) * 2005-01-14 2009-12-29 Advanced Digital Systems, Inc. System and method for associating handwritten information with one or more objects
KR100703698B1 (en) * 2005-02-16 2007-04-05 삼성전자주식회사 Apparatus and method for recognizing spatial writing and recording medium for recording the method
US7826074B1 (en) 2005-02-25 2010-11-02 Microsoft Corporation Fast embedded interaction code printing with custom postscript commands
US7421439B2 (en) 2005-04-22 2008-09-02 Microsoft Corporation Global metadata embedding and decoding
US7720286B2 (en) * 2005-05-25 2010-05-18 Advanced Digital Systems, Inc. System and method for associating handwritten information with one or more objects via discontinuous regions of a printed pattern
US7400777B2 (en) 2005-05-25 2008-07-15 Microsoft Corporation Preprocessing for information pattern analysis
US7729539B2 (en) 2005-05-31 2010-06-01 Microsoft Corporation Fast error-correcting of embedded interaction codes
US20060274906A1 (en) * 2005-06-06 2006-12-07 Ying Jia Acoustic sensor with combined frequency ranges
US8223136B2 (en) * 2005-06-07 2012-07-17 Intel Corporation Error detection and prevention inacoustic data
US20070009184A1 (en) * 2005-07-05 2007-01-11 Bhogal Kulvir S Associating attributes to captured input within a digital pen
US7922099B1 (en) 2005-07-29 2011-04-12 Leapfrog Enterprises, Inc. System and method for associating content with an image bearing surface
US7399954B2 (en) 2005-08-16 2008-07-15 Avago Technologies Ecbu Ip Pte Ltd System and method for an optical navigation device configured to generate navigation information through an optically transparent layer and to have skating functionality
US7817816B2 (en) 2005-08-17 2010-10-19 Microsoft Corporation Embedded interaction code enabled surface type identification
JP2007114869A (en) * 2005-10-18 2007-05-10 Fuji Xerox Co Ltd Reader, information processing system and medium forgery preventing method
US7692639B2 (en) * 2006-02-10 2010-04-06 Microsoft Corporation Uniquely identifiable inking instruments
US7791597B2 (en) * 2006-02-10 2010-09-07 Microsoft Corporation Uniquely identifiable inking instruments
US7884811B2 (en) * 2006-05-22 2011-02-08 Adapx Inc. Durable digital writing and sketching instrument
US7633493B2 (en) * 2006-06-19 2009-12-15 International Business Machines Corporation Camera-equipped writing tablet apparatus for digitizing form entries
US8261967B1 (en) 2006-07-19 2012-09-11 Leapfrog Enterprises, Inc. Techniques for interactively coupling electronic content with printed media
US20080129766A1 (en) * 2006-12-05 2008-06-05 Adapx, Inc. Carrier for a digital pen
US20080192004A1 (en) * 2007-02-08 2008-08-14 Silverbrook Research Pty Ltd System for scrolling page displayed on a display device
CN101681431A (en) * 2007-03-28 2010-03-24 阿诺托股份公司 Different aspects of electronic pens
US7832641B2 (en) * 2007-05-24 2010-11-16 Metrologic Instruments, Inc. Scanner switched to active state by sensed movement in quiescent scanning mechanism
US20090078473A1 (en) * 2007-09-26 2009-03-26 Digital Pen Systems Handwriting Capture For Determining Absolute Position Within A Form Layout Using Pen Position Triangulation
KR100903293B1 (en) * 2007-12-31 2009-06-16 주식회사 에스제이테크 Stylus pen
WO2009096886A1 (en) * 2008-01-28 2009-08-06 Anoto Ab Digital pens and a method for digital recording of information
CN101546371B (en) * 2008-03-28 2013-05-08 爱国者数码科技有限公司 Encoding identification device controlled by force sense
US8210668B2 (en) * 2009-01-12 2012-07-03 Hewlett-Packard Development Company, L.P. Container
US9576230B2 (en) * 2010-07-06 2017-02-21 Marcelo Amaral Rezende Dot code pattern for absolute position and other information using an optical pen, process of printing the dot code, process of reading the dot code
SG186945A1 (en) * 2010-07-06 2013-02-28 T Data Systems S Pte Ltd Data storage device with data input function
CN103886346A (en) * 2012-12-24 2014-06-25 鸿富锦精密工业(深圳)有限公司 Bar code reader and delivery information processing system
US8982094B2 (en) 2012-12-28 2015-03-17 Shenzhen Huiding Technology Co., Ltd. Device-to-device communications based on capacitive sensing and coupling via human body or direct device-to-device coupling
US10719144B2 (en) * 2016-05-11 2020-07-21 Otm Technologies Ltd. Devices and methods for determining relative motion
US11577159B2 (en) 2016-05-26 2023-02-14 Electronic Scripting Products Inc. Realistic virtual/augmented/mixed reality viewing and interactions
US10444866B2 (en) 2016-11-14 2019-10-15 Microsoft Technology Licensing, Llc Force sensor for a stylus
DE102018107409A1 (en) 2018-03-28 2019-10-02 Gottfried Wilhelm Leibniz Universität Hannover Method for recognizing handwritten characters, preferably during writing, and writing instrument for detecting handwritten characters
IT201900022206A1 (en) 2019-11-26 2021-05-26 Pico Ideas Srls Optimized digital writing system
KR102446916B1 (en) * 2022-06-03 2022-09-23 주식회사 보나 optical digital pen by use of light scattering having fusion-spliced optical fiber

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5661506A (en) * 1994-11-10 1997-08-26 Sia Technology Corporation Pen and paper information recording system using an imaging pen
EP0838776A2 (en) * 1996-10-23 1998-04-29 International Business Machines Corporation Apparatus for sensing user input
US5852434A (en) * 1992-04-03 1998-12-22 Sekendur; Oral F. Absolute optical position determination
EP0942285A1 (en) * 1998-03-09 1999-09-15 OTM Technologies, Ltd. Optical translation measurement
US6081261A (en) * 1995-11-01 2000-06-27 Ricoh Corporation Manual entry interactive paper and electronic document handling and processing system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4111052A (en) 1977-08-29 1978-09-05 Burroughs Corporation Pressure-sensitive writing stylus
US4513437A (en) 1982-06-30 1985-04-23 International Business Machines Corporation Data input pen for Signature Verification
US5162640A (en) * 1990-02-14 1992-11-10 Alps Electric Co., Ltd. Pen type optical reading device having plural lens arrangement
US5018208A (en) 1990-04-02 1991-05-21 Gladstone Karen S Input device for dynamic signature verification systems
EP0498678B1 (en) 1991-02-08 2000-05-10 Fujitsu Limited High speed scan bar code reader which can read more than one type of bar code
JPH0644005A (en) * 1992-01-24 1994-02-18 Seiko Instr Inc Coordinate input device
US5981883A (en) 1992-07-08 1999-11-09 Lci Technology Group, N.V. Systems for imaging written information
US5652412A (en) * 1994-07-11 1997-07-29 Sia Technology Corp. Pen and paper information recording system
JPH0887368A (en) * 1994-09-19 1996-04-02 Japan Aviation Electron Ind Ltd Sensor for pen input device, and pen input device
IL113311A (en) 1995-04-10 1997-07-13 Yeda Res & Dev Method and apparatus for coherence observation by interference noise
US5929420A (en) 1995-10-02 1999-07-27 Symbol Technologies, Inc. Method for reading distorted bar codes
JP3837800B2 (en) 1996-10-31 2006-10-25 株式会社ワコム Position indicator
US6188392B1 (en) * 1997-06-30 2001-02-13 Intel Corporation Electronic pen device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5852434A (en) * 1992-04-03 1998-12-22 Sekendur; Oral F. Absolute optical position determination
US5661506A (en) * 1994-11-10 1997-08-26 Sia Technology Corporation Pen and paper information recording system using an imaging pen
US6081261A (en) * 1995-11-01 2000-06-27 Ricoh Corporation Manual entry interactive paper and electronic document handling and processing system
EP0838776A2 (en) * 1996-10-23 1998-04-29 International Business Machines Corporation Apparatus for sensing user input
EP0942285A1 (en) * 1998-03-09 1999-09-15 OTM Technologies, Ltd. Optical translation measurement

Also Published As

Publication number Publication date
US6592039B1 (en) 2003-07-15
MY125950A (en) 2006-09-29
AU2001272672A1 (en) 2002-03-04
TWI222027B (en) 2004-10-11
JP2004506994A (en) 2004-03-04
WO2002017222A2 (en) 2002-02-28
KR100590375B1 (en) 2006-06-15
KR20030022414A (en) 2003-03-15
CN1636227A (en) 2005-07-06
EP1312042A2 (en) 2003-05-21

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