JPS576996A - Absolute encoder - Google Patents
Absolute encoderInfo
- Publication number
- JPS576996A JPS576996A JP8169980A JP8169980A JPS576996A JP S576996 A JPS576996 A JP S576996A JP 8169980 A JP8169980 A JP 8169980A JP 8169980 A JP8169980 A JP 8169980A JP S576996 A JPS576996 A JP S576996A
- Authority
- JP
- Japan
- Prior art keywords
- absolute encoder
- encoder
- absolute
- 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.)
- Pending
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
- H03M1/308—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental with additional pattern means for determining the absolute position, e.g. reference marks
-
- 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
- H03M1/287—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding using gradually changing slit width or pitch within one track; using plural tracks having slightly different pitches, e.g. of the Vernier or nonius type
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Optical Transform (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8169980A JPS576996A (en) | 1980-06-17 | 1980-06-17 | Absolute encoder |
US06/272,265 US4384204A (en) | 1980-06-17 | 1981-06-10 | Absolute encoder |
DE8181104659T DE3174617D1 (en) | 1980-06-17 | 1981-06-16 | Absolute encoder |
EP81104659A EP0042178B1 (en) | 1980-06-17 | 1981-06-16 | Absolute encoder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8169980A JPS576996A (en) | 1980-06-17 | 1980-06-17 | Absolute encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS576996A true JPS576996A (en) | 1982-01-13 |
Family
ID=13753618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8169980A Pending JPS576996A (en) | 1980-06-17 | 1980-06-17 | Absolute encoder |
Country Status (4)
Country | Link |
---|---|
US (1) | US4384204A (ja) |
EP (1) | EP0042178B1 (ja) |
JP (1) | JPS576996A (ja) |
DE (1) | DE3174617D1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6441819A (en) * | 1987-08-07 | 1989-02-14 | Matsushita Electric Ind Co Ltd | Position detecting apparatus |
WO1990000720A1 (en) * | 1988-07-12 | 1990-01-25 | Furuno Electric Company, Limited | Rotary encoder |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4546347A (en) * | 1981-05-18 | 1985-10-08 | Mouse Systems Corporation | Detector for electro-optical mouse |
CH658514A5 (de) * | 1982-02-09 | 1986-11-14 | Wild Heerbrugg Ag | Verfahren und vorrichtung zur erfassung einer messgroesse. |
US4526471A (en) * | 1982-06-17 | 1985-07-02 | Bykov Anatoly P | Method for sensing spatial coordinate of article point and apparatus therefor |
DE3308813C2 (de) * | 1983-03-12 | 1985-02-07 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Meßeinrichtung |
US4555625A (en) * | 1983-03-21 | 1985-11-26 | Rockwell International Corporation | Precision drum encoder |
CH676043A5 (ja) * | 1983-12-30 | 1990-11-30 | Wild Leitz Ag | |
US4680466A (en) * | 1984-04-20 | 1987-07-14 | Yokogawa Hokushin Electric Corporation | Displacement transducer which simultaneously extracts signals via sequential switching |
US4633224A (en) * | 1985-05-06 | 1986-12-30 | Caterpillar Inc. | Absolute and incremental optical encoder |
EP0237470B1 (de) * | 1986-02-07 | 1990-03-28 | Saphirwerk Industrieprodukte AG | Vorrichtung zur inkrementalen Längenmessung |
SE460928B (sv) * | 1986-10-13 | 1989-12-04 | Johansson Ab C E | Absolutmaetande skalsystem |
GB2197146B (en) * | 1986-11-04 | 1991-05-29 | Canon Kk | An encoder for detecting the displacement of an object to be measured |
US4899048A (en) * | 1987-04-27 | 1990-02-06 | Printware, Inc. | Focused optical beam encoder of position |
JP2600235B2 (ja) * | 1987-12-28 | 1997-04-16 | 松下電器産業株式会社 | 位置検出装置 |
JPH01255014A (ja) * | 1988-04-04 | 1989-10-11 | Mitsubishi Electric Corp | 位置検出回路 |
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 |
US5294793A (en) * | 1991-08-23 | 1994-03-15 | Rsf-Elektronik Gesellschaft M.B.H. | System for measuring lengths or angles with a high-velocity movable scanning unit |
US5665974A (en) * | 1995-11-16 | 1997-09-09 | The Boeing Company | Self-monitoring optical encoder for wavelength division multiplexing optical sensors |
GB9909654D0 (en) * | 1999-04-28 | 1999-06-23 | Smiths Industries Plc | Syringe pump |
US7135673B2 (en) * | 2004-10-29 | 2006-11-14 | The Boeing Company | Imaging rotation angle absolute encoder |
CN101586968B (zh) * | 2008-05-19 | 2011-03-09 | 台达电子工业股份有限公司 | 高解析绝对型编码装置及其操作方法 |
US7547875B1 (en) * | 2008-05-29 | 2009-06-16 | Delta Electronics, Inc. | Absolute type encoder apparatus and method for operating the same |
EP2163859A1 (de) * | 2008-09-12 | 2010-03-17 | Leica Geosystems AG | Verfahren und Vorrichtung zum Bestimmen von Positionen |
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 |
JP6000759B2 (ja) * | 2012-08-31 | 2016-10-05 | キヤノン株式会社 | スケール、エンコーダ、レンズ装置、および、撮像システム |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5526469A (en) * | 1978-08-15 | 1980-02-25 | Matsushita Electric Ind Co Ltd | Encoder unit |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3270567A (en) * | 1961-09-11 | 1966-09-06 | Honeywell Inc | Control apparatus |
US3410976A (en) * | 1965-06-09 | 1968-11-12 | Itek Corp | Shaft angle encoder with phase detection |
FR1513177A (fr) * | 1967-03-07 | 1968-02-09 | Exaprecis | Galvanomètre numérique |
FR2214389A5 (ja) * | 1973-01-17 | 1974-08-09 | Sodern |
-
1980
- 1980-06-17 JP JP8169980A patent/JPS576996A/ja active Pending
-
1981
- 1981-06-10 US US06/272,265 patent/US4384204A/en not_active Expired - Lifetime
- 1981-06-16 DE DE8181104659T patent/DE3174617D1/de not_active Expired
- 1981-06-16 EP EP81104659A patent/EP0042178B1/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5526469A (en) * | 1978-08-15 | 1980-02-25 | Matsushita Electric Ind Co Ltd | Encoder unit |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6441819A (en) * | 1987-08-07 | 1989-02-14 | Matsushita Electric Ind Co Ltd | Position detecting apparatus |
WO1990000720A1 (en) * | 1988-07-12 | 1990-01-25 | Furuno Electric Company, Limited | Rotary encoder |
GB2247581A (en) * | 1988-07-12 | 1992-03-04 | Furuno Electric Co | Rotary encoder |
GB2247581B (en) * | 1988-07-12 | 1993-02-17 | Furuno Electric Co | Rotary encoder |
Also Published As
Publication number | Publication date |
---|---|
EP0042178A3 (en) | 1983-06-29 |
DE3174617D1 (en) | 1986-06-19 |
EP0042178B1 (en) | 1986-05-14 |
US4384204A (en) | 1983-05-17 |
EP0042178A2 (en) | 1981-12-23 |
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