DE3689448D1 - Optischer Codierer. - Google Patents

Optischer Codierer.

Info

Publication number
DE3689448D1
DE3689448D1 DE86304499T DE3689448T DE3689448D1 DE 3689448 D1 DE3689448 D1 DE 3689448D1 DE 86304499 T DE86304499 T DE 86304499T DE 3689448 T DE3689448 T DE 3689448T DE 3689448 D1 DE3689448 D1 DE 3689448D1
Authority
DE
Germany
Prior art keywords
optical encoder
encoder
optical
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
DE86304499T
Other languages
English (en)
Other versions
DE3689448T2 (de
Inventor
Mark G Leonard
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.)
Avago Technologies International Sales Pte Ltd
Original Assignee
Hewlett Packard Co
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 Hewlett Packard Co filed Critical Hewlett Packard Co
Application granted granted Critical
Publication of DE3689448D1 publication Critical patent/DE3689448D1/de
Publication of DE3689448T2 publication Critical patent/DE3689448T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/22—Analogue/digital converters pattern-reading type
    • H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
    • H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
    • H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
    • H03M1/301—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Transform (AREA)
DE3689448T 1985-06-19 1986-06-12 Optischer Codierer. Expired - Lifetime DE3689448T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/747,084 US4691101A (en) 1985-06-19 1985-06-19 Optical positional encoder comprising immediately adjacent detectors

Publications (2)

Publication Number Publication Date
DE3689448D1 true DE3689448D1 (de) 1994-02-10
DE3689448T2 DE3689448T2 (de) 1994-07-14

Family

ID=25003598

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3689448T Expired - Lifetime DE3689448T2 (de) 1985-06-19 1986-06-12 Optischer Codierer.

Country Status (7)

Country Link
US (1) US4691101A (de)
EP (1) EP0206656B1 (de)
JP (1) JPH083427B2 (de)
CA (1) CA1261030A (de)
DE (1) DE3689448T2 (de)
ES (1) ES8801732A1 (de)
HK (1) HK149294A (de)

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US5017776A (en) * 1989-03-10 1991-05-21 Hewlett-Packard Company Apparatus for and methods of optical encoding having spiral shaped light modulator
US5013910A (en) * 1989-10-16 1991-05-07 Hewlett-Packard Company Shaft angle encoder with a symmetrical code wheel
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US5148020A (en) * 1991-04-17 1992-09-15 Hewlett-Packard Company Optical encoder with photodetectors of width equal to and one-half of code wheel's window and spoke width
US5274229A (en) * 1991-06-11 1993-12-28 Hewlett-Packard Company Absolute position encoder
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DE10244234A1 (de) * 2002-09-23 2004-03-25 Dr. Johannes Heidenhain Gmbh Positionsmesseinrichtung
US6956200B2 (en) * 2003-01-31 2005-10-18 Mitsubishi Denki Kabushiki Kaisha Phase-shift photoelectric encoder
US7302181B2 (en) * 2003-02-25 2007-11-27 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Single lens multiple light source device
JP2005017116A (ja) * 2003-06-26 2005-01-20 Sharp Corp 光学式エンコーダ用受光素子
JP4520121B2 (ja) * 2003-08-08 2010-08-04 シャープ株式会社 光学式エンコーダ
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US6927704B1 (en) * 2004-03-05 2005-08-09 Delphi Technologies, Inc. Fault tolerant optoelectronic position sensor
US7145126B2 (en) 2004-03-16 2006-12-05 Wai-Hon Lee Optical position encoder device using incoherent light source
US7622707B2 (en) * 2004-03-26 2009-11-24 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Polaroid absolute encoder
US7126108B2 (en) * 2004-04-22 2006-10-24 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Photodetector array arrangement for optical encoders
KR101142564B1 (ko) 2004-06-24 2012-05-24 아이로보트 코퍼레이션 자동 로봇 장치용의 원격 제어 스케줄러 및 방법
US8972052B2 (en) 2004-07-07 2015-03-03 Irobot Corporation Celestial navigation system for an autonomous vehicle
US7706917B1 (en) 2004-07-07 2010-04-27 Irobot Corporation Celestial navigation system for an autonomous robot
US11209833B2 (en) 2004-07-07 2021-12-28 Irobot Corporation Celestial navigation system for an autonomous vehicle
US7449675B2 (en) * 2004-08-02 2008-11-11 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Photodetector array and codewheel configuration for flexible optical encoder resolution
JP4054817B2 (ja) * 2004-08-20 2008-03-05 シャープ株式会社 光学式エンコーダおよびそれを用いた電子機器
US7145127B2 (en) * 2004-08-25 2006-12-05 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Optical encoding that utilizes total internal reflection
US7187305B2 (en) * 2004-09-21 2007-03-06 Kollmorgen Corporation Encoder for a motor controller
JP2006138775A (ja) * 2004-11-12 2006-06-01 Toshiba Corp 光学式エンコーダ用受光素子及び光学式エンコーダ
TWI278604B (en) * 2004-12-27 2007-04-11 Lite On Technology Corp Optical encoder
US8930023B2 (en) 2009-11-06 2015-01-06 Irobot Corporation Localization by learning of wave-signal distributions
JP4918757B2 (ja) * 2005-06-30 2012-04-18 ミツミ電機株式会社 受光装置
US7394061B2 (en) * 2005-08-31 2008-07-01 Avago Technologies Ecbu Pte Ltd Optical encoder with integrated index channel
US7552873B2 (en) * 2005-09-14 2009-06-30 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Transmissive optical encoder
US7469839B2 (en) * 2005-09-14 2008-12-30 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Reflective optical encoder
US20070120047A1 (en) * 2005-11-25 2007-05-31 Wong Weng F Ring-configured photodiode array and optical encoders using the same
JP2007170826A (ja) * 2005-12-19 2007-07-05 Orion Denki Kk 光エンコーダ
US20070241269A1 (en) * 2006-04-14 2007-10-18 Saidan Saiful B Optical encoders having improved resolution
JP2008083019A (ja) * 2006-08-30 2008-04-10 Sharp Corp 光電式エンコーダおよびそれを用いた電子機器
US20080062497A1 (en) * 2006-09-11 2008-03-13 Bredon Alan D Optical Encoder Having Non-Collimated, Point-Source Light Emitter
US7732756B2 (en) * 2006-11-01 2010-06-08 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. User navigation device with a code wheel and an encoder
US7507950B2 (en) * 2006-11-09 2009-03-24 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Encoder with a combined position and index track
US7400269B2 (en) * 2006-11-09 2008-07-15 Avago Technologies Ecbu Ip Pte Ltd Coding element with integrated limit switch
US20080156973A1 (en) * 2006-12-29 2008-07-03 Weng Fei Wong Photosensor array for optical encoder
US20080203283A1 (en) * 2007-02-23 2008-08-28 Yee Loong Chin Optical encoder with detector lens
JP2008286631A (ja) * 2007-05-17 2008-11-27 Sharp Corp 光学式エンコーダおよびそれを備える電子機器
US7612326B2 (en) * 2007-08-27 2009-11-03 Delta Electronics Inc. Angle-calculation apparatus and angle-calculation method for three-phase optical encoder
US7557340B2 (en) 2007-10-07 2009-07-07 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Shaft-mounted detector for optical encoder having an aperture through the detector for receiving a rotary shaft of a motor
US20090152452A1 (en) * 2007-12-18 2009-06-18 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Reflective multi-turn encoder
US20090207450A1 (en) * 2008-02-19 2009-08-20 Kabushiki Kaisha Toshiba Image scanning apparatus, shading correction method, and shading correction program
US8173950B2 (en) * 2008-02-19 2012-05-08 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Single track optical encoder
US7709784B2 (en) * 2008-04-30 2010-05-04 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Optical encoder with code wheel misalignment detection and automatic gain control
FR2937129B1 (fr) * 2008-10-10 2012-11-16 Thales Sa Codeur optique
US7795576B2 (en) * 2008-12-23 2010-09-14 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Single dome lens reflective optical encoder
IT1396742B1 (it) * 2009-12-04 2012-12-14 By Dental S R L Dispositivo endodontico.
FR2954491B1 (fr) * 2009-12-23 2012-04-27 Thales Sa Codeur optique.
US8947076B2 (en) 2010-01-18 2015-02-03 Bourns, Inc. High resolution non-contacting multi-turn position sensor
US8525102B2 (en) 2011-02-15 2013-09-03 Avago Technologies General Ip (Singapore) Pte. Ltd. Optical encoding system and optical encoder having an array of incremental photodiodes and an index photodiode for use in an optical encoding system
DE102011076055A1 (de) * 2011-05-18 2012-11-22 Dr. Johannes Heidenhain Gmbh Optische Positionsmesseinrichtung
US8847144B2 (en) 2011-08-08 2014-09-30 Avago Technologies General Ip (Singapore) Pte. Ltd. Enhanced optical reflective encoder
DE102012018458A1 (de) * 2012-09-19 2014-03-20 Prema Semiconductor Gmbh Vorrichtung zur Erfassung von Winkel- oder Lageänderungen
US9354087B2 (en) 2013-01-09 2016-05-31 Avago Technologies General Ip (Singapore) Pte. Ltd. Single track three-channel encoder with differential index
US9857205B2 (en) 2013-11-06 2018-01-02 Quantum Devices, Inc. Encoder system with a desired radial alignment and axial gap
US11092465B2 (en) * 2014-04-25 2021-08-17 Sharp Kabushiki Kaisha Optical encoder
DE102015116554A1 (de) 2015-09-30 2017-03-30 Ic-Haus Gmbh Verfahren zur Detektion einer Indexmarkierung einer Positionsmessvorrichtung
RU2651637C1 (ru) * 2017-01-17 2018-04-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Тульский государственный университет" (ТулГУ) Абсолютный оптический однооборотный угловой энкодер

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US4410798A (en) * 1981-06-10 1983-10-18 Itek Corporation Incremental optical encoder system with addressable index
US4451731A (en) * 1981-08-10 1984-05-29 Hewlett-Packard Company Apparatus and method for modulating light to generate an index pulse
JPS5940258A (ja) * 1982-08-31 1984-03-05 Sharp Corp 光電式ロ−タリ−エンコ−ダ
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Also Published As

Publication number Publication date
ES8801732A1 (es) 1988-02-16
JPS61292016A (ja) 1986-12-22
CA1261030A (en) 1989-09-26
DE3689448T2 (de) 1994-07-14
EP0206656B1 (de) 1993-12-29
EP0206656A3 (en) 1988-11-30
ES556191A0 (es) 1988-02-16
JPH083427B2 (ja) 1996-01-17
US4691101A (en) 1987-09-01
HK149294A (en) 1995-01-06
EP0206656A2 (de) 1986-12-30

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: AGILENT TECHNOLOGIES, INC. (N.D.GES.D.STAATES DELA

8327 Change in the person/name/address of the patent owner

Owner name: AVAGO TECHNOLOGIES ECBU IP (SINGAPORE) PTE. LTD.,