DE3174549D1 - Encoder - Google Patents

Encoder

Info

Publication number
DE3174549D1
DE3174549D1 DE8181104660T DE3174549T DE3174549D1 DE 3174549 D1 DE3174549 D1 DE 3174549D1 DE 8181104660 T DE8181104660 T DE 8181104660T DE 3174549 T DE3174549 T DE 3174549T DE 3174549 D1 DE3174549 D1 DE 3174549D1
Authority
DE
Germany
Prior art keywords
encoder
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
Application number
DE8181104660T
Other languages
English (en)
Inventor
Hiroshi Tamaki
Fumio Ohtomo
Kazuaki Kimura
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.)
Topcon Corp
Original Assignee
Tokyo Kogaku Kikai KK
Tokyo Optical Co Ltd
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 Tokyo Kogaku Kikai KK, Tokyo Optical Co Ltd filed Critical Tokyo Kogaku Kikai KK
Application granted granted Critical
Publication of DE3174549D1 publication Critical patent/DE3174549D1/de
Expired 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
    • H03M1/285—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding of the unit Hamming distance type, e.g. Gray code
    • 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
    • H03M1/20—Increasing resolution using an n bit system to obtain n + m bits
    • H03M1/202—Increasing resolution using an n bit system to obtain n + m bits by interpolation
    • H03M1/203—Increasing resolution using an n bit system to obtain n + m bits by interpolation using an analogue interpolation circuit
DE8181104660T 1980-06-17 1981-06-16 Encoder Expired DE3174549D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8169780A JPS576994A (en) 1980-06-17 1980-06-17 Coding board for encoder

Publications (1)

Publication Number Publication Date
DE3174549D1 true DE3174549D1 (en) 1986-06-12

Family

ID=13753558

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181104660T Expired DE3174549D1 (en) 1980-06-17 1981-06-16 Encoder

Country Status (4)

Country Link
US (1) US4465373A (de)
EP (1) EP0042179B1 (de)
JP (1) JPS576994A (de)
DE (1) DE3174549D1 (de)

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* Cited by examiner, † Cited by third party
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JPS5829093A (ja) * 1981-08-13 1983-02-21 株式会社トプコン アブソリユ−トエンコ−ダ
JPS58150819A (ja) * 1982-03-03 1983-09-07 Mitsubishi Electric Corp 光学式エンコ−ダ
US4553035A (en) * 1983-08-30 1985-11-12 Mylex Corporation Data acquisition control method and system for a hand held reader
GB2179515B (en) * 1985-08-22 1989-08-02 Muirhead Vactric Components Interpolation method and application thereof to encoders
US4720699A (en) * 1985-10-28 1988-01-19 Smith Ronald H Optical encoder using line array detectors
DE3542514A1 (de) * 1985-12-02 1987-06-04 Zeiss Carl Fa Wegmesseinrichtung
US5214426A (en) * 1988-07-12 1993-05-25 Furuno Electric Company, Limited Rotary encoder having absolute angle patterns and relative angle patterns
US4984287A (en) * 1988-11-15 1991-01-08 Msc Technologies, Inc. Method for orienting a dual mouse optical scanner
US4942621A (en) * 1988-11-15 1990-07-17 Msc Technologies, Inc. Method for mapping scanned pixel data
US5237391A (en) * 1988-11-23 1993-08-17 The Boeing Company Multitrack multilevel sensing system
US5069547A (en) * 1988-11-23 1991-12-03 The Boeing Company Multitrack multilevel sensing system with error detecting
US5017776A (en) * 1989-03-10 1991-05-21 Hewlett-Packard Company Apparatus for and methods of optical encoding having spiral shaped light modulator
DE4014479A1 (de) * 1989-05-11 1990-11-15 Volkswagen Ag Einrichtung zur ermittlung der bewegungsstrecke zwischen zwei relativbewegungen ausfuehrenden teilen
US5105296A (en) * 1989-11-20 1992-04-14 Dainippon Screen Mfg. Co., Ltd. Method and apparatus for detecting beam spot shape
US5254919A (en) * 1991-03-22 1993-10-19 Eastman Kodak Company Encoder system using linear array sensor for high resolution
US5699058A (en) * 1994-03-17 1997-12-16 Copal Company Limited Absolute encoder generating phase-shifted triangular waveforms to produce multi-bit signals
US6327791B1 (en) 1999-06-09 2001-12-11 The Government Of The United States As Represented By The Secretary Of Commerce Chain code position detector
WO2000077472A1 (en) * 1999-06-16 2000-12-21 Snorkel International, Inc. Chain code position detector
US6922907B2 (en) 2001-04-05 2005-08-02 Anton Rodi Measuring system for recording absolute angular or position values
DE10117193B4 (de) * 2001-04-05 2013-04-04 Anton Rodi Messsystem zur Absolutwerterfassung von Winkeln oder Wegen
US6912797B2 (en) * 2001-04-05 2005-07-05 Anton Rodi Measuring system for recording absolute angular or position values
US6456244B1 (en) 2001-07-23 2002-09-24 Harris Corporation Phased array antenna using aperiodic lattice formed of aperiodic subarray lattices
US6842157B2 (en) * 2001-07-23 2005-01-11 Harris Corporation Antenna arrays formed of spiral sub-array lattices
US6897829B2 (en) * 2001-07-23 2005-05-24 Harris Corporation Phased array antenna providing gradual changes in beam steering and beam reconfiguration and related methods
US7069120B1 (en) * 2003-10-22 2006-06-27 Rockwell Collins, Inc. Position sensing system
US7568727B2 (en) * 2005-04-06 2009-08-04 Ford Global Technologies, Llc Airbag deployment monitoring system
DE102005032869A1 (de) * 2005-07-14 2007-01-25 Leopold Kostal Gmbh & Co. Kg Verfahren zum Bestimmen der absoluten Winkelstellung des Lenkrades eines Kraftfahrzeugs
US8182065B2 (en) * 2005-07-29 2012-05-22 Hewlett-Packard Development Company, L.P. Apparatus and methods for compensation of thermal and hydroscopic expansion effects in a low cost motion control system
EP1790953A1 (de) * 2005-11-04 2007-05-30 Leica Geosystems AG Optoelektrische Winkelmesseinrichtung
US7399956B2 (en) * 2005-11-28 2008-07-15 Avago Technologies Ecbuip Pte Ltd Optical encoder with sinusoidal photodetector output signal
DE102006010161B4 (de) * 2006-02-28 2010-04-08 Dr. Johannes Heidenhain Gmbh Codestruktur für eine Positionsmesseinrichtung und Positionsmesseinrichtung mit einer solchen Codestruktur
US7615737B2 (en) * 2007-05-08 2009-11-10 The Boeing Company High precision compact rotation angle absolute encoder
JP2010256081A (ja) * 2009-04-22 2010-11-11 Fujifilm Corp 光学式位置検出器及び光学装置
US10357714B2 (en) 2009-10-27 2019-07-23 Harmonix Music Systems, Inc. Gesture-based user interface for navigating a menu
JP5574899B2 (ja) * 2010-09-24 2014-08-20 キヤノン株式会社 ロータリーエンコーダ及びこれを備えた光学機器
EP3064902B1 (de) * 2015-03-06 2017-11-01 Hexagon Technology Center GmbH System zur bestimmung von positionen
EP3121565B1 (de) 2015-07-24 2018-09-12 Hexagon Technology Center GmbH Absolutpositionsbestimmung
US10989566B2 (en) 2018-04-09 2021-04-27 Infineon Technologies Ag Magnetic sensor system for measuring linear position
TWI716246B (zh) * 2019-12-31 2021-01-11 財團法人工業技術研究院 光學編碼器

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1282988B (de) * 1965-05-28 1968-11-14 Zeiss Carl Fa Einrichtung zum Messen von Lageaenderungen zweier zueinander beweglicher Teile unterVerwendung einer inkohaerenten Strahlung
GB1169698A (en) * 1965-12-02 1969-11-05 Nat Res Dev Improvements in or relating to Positional Displacement Transducer Arrangements
SE324463B (de) * 1968-03-27 1970-06-01 Aga Ab
GB1192513A (en) * 1968-05-02 1970-05-20 Feinmass Dresden Veb Improvements in and relating to Linear Measurement Scales
US3648276A (en) * 1969-12-11 1972-03-07 Warner Swasey Co Segmented scale
US3708681A (en) * 1971-04-01 1973-01-02 Dynamics Res Corp Position and velocity sensor
US3748043A (en) * 1972-03-20 1973-07-24 Bendix Corp Photoelectric interpolating arrangement for reading displacements of divided scales
FR2271540A2 (en) * 1974-02-05 1975-12-12 Boudier Pierre Electronic vernier device with slotted disc - has non-radial slots and two phototransistors on radius to give incremental signals
JPS5166856A (en) * 1974-12-06 1976-06-09 Hitachi Ltd Fukusukono pataannosotaitekiheniryosokuteihoho oyobi sonosochi
DE2758854C2 (de) * 1977-12-30 1979-09-27 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Vorrichtung zum Messen der Verschiebung und/oder der Geschwindigkeit eines mit einem optischen Streifenmuster verbundenen Körpers
US4180703A (en) * 1978-06-28 1979-12-25 International Business Machines Corporation Bi-directional, self imaging grating detection apparatus
EP0013799B1 (de) * 1978-12-19 1985-10-02 Kabushiki Kaisha Toshiba Kodierer für Längen- oder Winkelmessvorrichtungen mit hoher Genauigkeit

Also Published As

Publication number Publication date
EP0042179A3 (en) 1983-06-22
JPS576994A (en) 1982-01-13
JPS6331722B2 (de) 1988-06-27
EP0042179A2 (de) 1981-12-23
EP0042179B1 (de) 1986-05-07
US4465373A (en) 1984-08-14

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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: KABUSHIKI KAISHA TOPCON, TOKIO/TOKYO, JP