GB1301115A - Sine function generator - Google Patents

Sine function generator

Info

Publication number
GB1301115A
GB1301115A GB63348/69A GB6334869A GB1301115A GB 1301115 A GB1301115 A GB 1301115A GB 63348/69 A GB63348/69 A GB 63348/69A GB 6334869 A GB6334869 A GB 6334869A GB 1301115 A GB1301115 A GB 1301115A
Authority
GB
United Kingdom
Prior art keywords
encoder
sine function
degrees
range
quadrant
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
GB63348/69A
Inventor
David John Mathews
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.)
Thorn Automation Ltd
Original Assignee
Thorn Automation 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 Thorn Automation Ltd filed Critical Thorn Automation Ltd
Priority to GB63348/69A priority Critical patent/GB1301115A/en
Publication of GB1301115A publication Critical patent/GB1301115A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/02—Digital function generators
    • G06F1/022—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/04—Trigonometric functions
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

1301115 Selective signalling THORN AUTOMATION Ltd 30 Dec 1969 63348/69 Heading G4H The range of operation of a single-quadrant sine function encoder is extended to 360 degrees by applying the least significant N-2 bits of a binary coded N-bit digital signal representing an angle in the range 0 to 360 degrees to the encoder either in true or inverted form, in accordance with the quadrant in which the angle lies as determined from the second most significant bit, and by giving its output a sign determined by the most significant bit. As described the encoder, of which no details are given, produces a digital output which is converted to analogue form in a conventional manner (Fig. 2, not shown) by switching the rungs of a ladder.
GB63348/69A 1969-12-30 1969-12-30 Sine function generator Expired GB1301115A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB63348/69A GB1301115A (en) 1969-12-30 1969-12-30 Sine function generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB63348/69A GB1301115A (en) 1969-12-30 1969-12-30 Sine function generator

Publications (1)

Publication Number Publication Date
GB1301115A true GB1301115A (en) 1972-12-29

Family

ID=10488951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB63348/69A Expired GB1301115A (en) 1969-12-30 1969-12-30 Sine function generator

Country Status (1)

Country Link
GB (1) GB1301115A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409777A (en) * 2004-01-03 2005-07-06 Sharp Kk Digital/analog converter for a display driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2409777A (en) * 2004-01-03 2005-07-06 Sharp Kk Digital/analog converter for a display driver

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees