GB1053964A - - Google Patents

Info

Publication number
GB1053964A
GB1053964A GB1053964DA GB1053964A GB 1053964 A GB1053964 A GB 1053964A GB 1053964D A GB1053964D A GB 1053964DA GB 1053964 A GB1053964 A GB 1053964A
Authority
GB
United Kingdom
Prior art keywords
track
produce
increment
shaft
photo
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.)
Active
Application number
Other languages
English (en)
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.)
Publication of GB1053964A publication Critical patent/GB1053964A/en
Active 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
    • H03M1/20—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
    • H03M1/204—Increasing resolution using an n bit system to obtain n + m bits by interpolation using an analogue interpolation circuit in which one or more virtual intermediate reference signals are generated between adjacent original reference signals, e.g. by connecting pre-amplifier outputs to multiple comparators
    • H03M1/205—Increasing resolution using an n bit system to obtain n + m bits by interpolation using an analogue interpolation circuit in which one or more virtual intermediate reference signals are generated between adjacent original reference signals, e.g. by connecting pre-amplifier outputs to multiple comparators using resistor strings for redistribution of the original reference signals or signals derived therefrom
    • 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
    • H03M1/14—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit
    • H03M1/143—Conversion in steps with each step involving the same or a different conversion means and delivering more than one bit in pattern-reading type converters, e.g. having both absolute and incremental tracks on one disc or strip
    • 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

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Transform (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
GB1053964D 1963-05-09 Active GB1053964A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US279071A US3312828A (en) 1963-05-09 1963-05-09 Analog to digital encoding apparatus for directly reading out information

Publications (1)

Publication Number Publication Date
GB1053964A true GB1053964A (en:Method)

Family

ID=23067521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1053964D Active GB1053964A (en:Method) 1963-05-09

Country Status (3)

Country Link
US (1) US3312828A (en:Method)
DE (1) DE1437362A1 (en:Method)
GB (1) GB1053964A (en:Method)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3447089A (en) * 1965-02-18 1969-05-27 Leeds & Northrup Co High-speed measuring systems and methods
US3576441A (en) * 1970-03-17 1971-04-27 Raymond K Adams Analytical photometer-to-digital computer interfacing system for real time data reduction
US3996772A (en) * 1970-05-30 1976-12-14 Firma Franz Morat Gmbh Method and device for the electronic control of knitting machines knitting pattern goods
US3853004A (en) * 1971-10-20 1974-12-10 Eastman Oil Well Survey Co Methods and systems for measuring, displaying and recording time-rate of penetration
US3818224A (en) * 1973-01-02 1974-06-18 Copar Corp Measurement system
US4445110A (en) * 1980-07-28 1984-04-24 Itek Corporation Absolute optical encoder system
US4443788A (en) * 1980-07-28 1984-04-17 Itek Corporation Optical encoder system
US4410798A (en) * 1981-06-10 1983-10-18 Itek Corporation Incremental optical encoder system with addressable index
JPS5826217A (ja) * 1981-08-10 1983-02-16 Kawaguchiko Seimitsu Kk 信号分割装置
US4465928A (en) * 1981-08-17 1984-08-14 Itek Corporation Optically multiplexed encoder system
JPS597210A (ja) * 1982-07-06 1984-01-14 Kawaguchiko Seimitsu Kk 信号分割装置
US7999536B2 (en) 2007-10-22 2011-08-16 The Timken Company Absolute position magnetic encoder with binary and decimal output
US8525459B2 (en) * 2010-07-15 2013-09-03 Heidenhain Corporation Code disk, optical encoder, and motor system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747797A (en) * 1951-08-20 1956-05-29 Hughes Aircraft Co Rotational analogue-to-digital converters
US2910684A (en) * 1955-04-25 1959-10-27 Baldwin Piano Co Data conversion system
US2930895A (en) * 1957-09-23 1960-03-29 Askania Werke Ag Scale interpolating device
CH374207A (de) * 1958-09-25 1963-12-31 Contraves Ag Automatische Messeinrichtung für die momentane Relativlage zweier gegeneinander beweglicher Geräteteile
US3037077A (en) * 1959-12-18 1962-05-29 Scope Inc Speech-to-digital converter
US3058001A (en) * 1960-04-21 1962-10-09 Baldwin Piano Co Photoelectric encoder
US3096441A (en) * 1960-10-14 1963-07-02 Wenczler & Heidenhain Electro-optical and electromagnetic determination of the position of scale divisions

Also Published As

Publication number Publication date
DE1437362A1 (de) 1969-10-09
US3312828A (en) 1967-04-04

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