GB8316462D0 - Compass - Google Patents

Compass

Info

Publication number
GB8316462D0
GB8316462D0 GB838316462A GB8316462A GB8316462D0 GB 8316462 D0 GB8316462 D0 GB 8316462D0 GB 838316462 A GB838316462 A GB 838316462A GB 8316462 A GB8316462 A GB 8316462A GB 8316462 D0 GB8316462 D0 GB 8316462D0
Authority
GB
United Kingdom
Prior art keywords
compass
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.)
Withdrawn
Application number
GB838316462A
Other versions
GB2123232A (en
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.)
FLETCHER I W
Original Assignee
FLETCHER I W
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 FLETCHER I W filed Critical FLETCHER I W
Publication of GB8316462D0 publication Critical patent/GB8316462D0/en
Publication of GB2123232A publication Critical patent/GB2123232A/en
Withdrawn legal-status Critical Current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
    • H03M1/245—Constructional details of parts relevant to the encoding mechanism, e.g. pattern carriers, pattern sensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes
    • G01C17/02—Magnetic compasses
    • G01C17/04—Magnetic compasses with north-seeking magnetic elements, e.g. needles
    • G01C17/20—Observing the compass card or needle
    • G01C17/26—Observing the compass card or needle using electric pick-offs for transmission to final indicator, e.g. photocell
    • 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
    • H03M1/26—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with weighted coding, i.e. the weight given to a digit depends on the position of the digit within the block or code word, e.g. there is a given radix and the weights are powers of this radix

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
GB08316462A 1982-06-21 1983-06-16 Compass Withdrawn GB2123232A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NZ20101782 1982-06-21

Publications (2)

Publication Number Publication Date
GB8316462D0 true GB8316462D0 (en) 1983-07-20
GB2123232A GB2123232A (en) 1984-01-25

Family

ID=19920012

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08316462A Withdrawn GB2123232A (en) 1982-06-21 1983-06-16 Compass

Country Status (1)

Country Link
GB (1) GB2123232A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2189663A (en) * 1986-04-24 1987-10-28 Seafarer Navigation Internatio Direction indicators
US5091021A (en) * 1990-09-28 1992-02-25 General Motors Corporation Magnetically coded device and method of manufacture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB969447A (en) * 1962-03-23 1964-09-09 Philips Electrical Ind Ltd Improvements in arrangements for indicating the position of a rotary shaft
GB998885A (en) * 1962-11-01 1965-07-21 Elliott Brothers London Ltd Improvements in weighing apparatus
US3618074A (en) * 1968-01-18 1971-11-02 Baldwin Co D H Optical encoder
US3833901A (en) * 1972-08-28 1974-09-03 Little Inc A Magnetic compass having remote digital readout
US4117602A (en) * 1977-04-04 1978-10-03 The Laitram Corporation Electromagnetic compass
GB2087674B (en) * 1980-11-13 1985-01-09 Freeman John William Herbert Interceptor member for checking vehicle axle loading

Also Published As

Publication number Publication date
GB2123232A (en) 1984-01-25

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)