IN170195B - - Google Patents

Info

Publication number
IN170195B
IN170195B IN675/MAS/87A IN675MA1987A IN170195B IN 170195 B IN170195 B IN 170195B IN 675MA1987 A IN675MA1987 A IN 675MA1987A IN 170195 B IN170195 B IN 170195B
Authority
IN
India
Application number
IN675/MAS/87A
Other languages
English (en)
Inventor
Peter Dean Onyon
Original Assignee
Rank Taylor Hobson 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 Rank Taylor Hobson Ltd filed Critical Rank Taylor Hobson Ltd
Priority to IN308MA1991 priority Critical patent/IN173229B/en
Publication of IN170195B publication Critical patent/IN170195B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/243—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the phase or frequency of ac
    • 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
    • H03M1/206—Increasing resolution using an n bit system to obtain n + m bits by interpolation using a logic interpolation circuit
    • 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
    • H03M1/303—Circuits or methods for processing the quadrature signals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Position Or Direction (AREA)
IN675/MAS/87A 1986-10-03 1987-09-17 IN170195B (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IN308MA1991 IN173229B (de) 1986-10-03 1991-04-18

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08623752A GB2195762A (en) 1986-10-03 1986-10-03 Interpolator

Publications (1)

Publication Number Publication Date
IN170195B true IN170195B (de) 1992-02-22

Family

ID=10605200

Family Applications (1)

Application Number Title Priority Date Filing Date
IN675/MAS/87A IN170195B (de) 1986-10-03 1987-09-17

Country Status (9)

Country Link
US (1) US4823000A (de)
EP (1) EP0262881B1 (de)
JP (1) JPS6391513A (de)
CN (1) CN87106776A (de)
DD (1) DD269269A5 (de)
DE (1) DE3788329T2 (de)
DK (1) DK482587A (de)
GB (1) GB2195762A (de)
IN (1) IN170195B (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8820742D0 (en) * 1988-09-02 1988-10-05 Alcatel Business Systems Optical encoder
GB8921338D0 (en) * 1989-09-21 1989-11-08 Smiths Industries Plc Optical encoders
GB8914417D0 (en) * 1989-06-23 1989-08-09 Rank Taylor Hobson Ltd Interpolator
US5107107A (en) * 1990-03-30 1992-04-21 The United States Of America As Represented By The Administarator Of The National Aeronautics And Space Administration Laser optical disk position encoder with active heads
WO1992006539A1 (en) * 1990-10-02 1992-04-16 Spetsialnoe Konstruktorskoe Bjuro Radioelektronnoi Apparatury Instituta Radiofiziki I Elektroniki Akademii Nauk Armyanskoi Ssr Method and device for conversion of movements of an object into code
US5949695A (en) * 1997-01-10 1999-09-07 Harris Corporation Interpolator using a plurality of polynomial equations and associated methods
US10408643B2 (en) * 2016-08-18 2019-09-10 Texas Instruments Incorporated Methods and apparatus to increase resolver-to-digital converter accuracy

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3410976A (en) * 1965-06-09 1968-11-12 Itek Corp Shaft angle encoder with phase detection
GB1161561A (en) * 1965-08-06 1969-08-13 Nat Res Dev Improvements in or relating to Positional Displacement Transducer Arrangements
US3798557A (en) * 1972-03-31 1974-03-19 Perkin Elmer Corp Interpolation of sinusoidal signals
JPS5610565A (en) * 1979-07-04 1981-02-03 Ricoh Co Ltd Purification of azo pigment
CA1142345A (en) * 1979-08-31 1983-03-08 Gerald L. Tumbush Relatively moving photodiode sensed diffraction grating-type measuring device
US4346447A (en) * 1979-12-28 1982-08-24 Nippon Kogaku K.K. Divisional reading device for sine signals
US4445110A (en) * 1980-07-28 1984-04-24 Itek Corporation Absolute optical encoder system
DE3412557A1 (de) * 1984-04-04 1985-10-24 Mauser-Werke Oberndorf Gmbh, 7238 Oberndorf Laengenmesseinrichtung
JPS6197520A (ja) * 1984-10-19 1986-05-16 Mitsutoyo Mfg Co Ltd 変位検出装置

Also Published As

Publication number Publication date
DK482587D0 (da) 1987-09-15
CN87106776A (zh) 1988-04-13
EP0262881A3 (en) 1989-12-27
DD269269A5 (de) 1989-06-21
EP0262881B1 (de) 1993-12-01
EP0262881A2 (de) 1988-04-06
JPS6391513A (ja) 1988-04-22
GB2195762A (en) 1988-04-13
DK482587A (da) 1988-04-04
DE3788329T2 (de) 1994-03-17
GB8623752D0 (en) 1986-11-05
US4823000A (en) 1989-04-18
DE3788329D1 (de) 1994-01-13

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