GB2485755B - Digital frequency synthesiser - Google Patents

Digital frequency synthesiser

Info

Publication number
GB2485755B
GB2485755B GB8800260.5A GB8800260A GB2485755B GB 2485755 B GB2485755 B GB 2485755B GB 8800260 A GB8800260 A GB 8800260A GB 2485755 B GB2485755 B GB 2485755B
Authority
GB
United Kingdom
Prior art keywords
digital frequency
frequency synthesiser
synthesiser
digital
frequency
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 - Lifetime
Application number
GB8800260.5A
Other versions
GB8800260D0 (en
GB2485755A (en
Inventor
Daniel Bois
Michel Dupendant
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.)
Thales SA
Original Assignee
Dassault Electronique SA
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 Dassault Electronique SA filed Critical Dassault Electronique SA
Anticipated expiration legal-status Critical
Publication of GB8800260D0 publication Critical patent/GB8800260D0/en
Publication of GB2485755A publication Critical patent/GB2485755A/en
Application granted granted Critical
Publication of GB2485755B publication Critical patent/GB2485755B/en
Expired - Lifetime 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
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G06F1/0328—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers in which the phase increment is adjustable, e.g. by using an adder-accumulator
    • 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
    • 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
    • G06F1/03—Digital function generators working, at least partly, by table look-up
    • G06F1/0321—Waveform generators, i.e. devices for generating periodical functions of time, e.g. direct digital synthesizers
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2211/00—Indexing scheme relating to details of data-processing equipment not covered by groups G06F3/00 - G06F13/00
    • G06F2211/902—Spectral purity improvement for digital function generators by adding a dither signal, e.g. noise

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)
GB8800260.5A 1987-01-13 1988-01-07 Digital frequency synthesiser Expired - Lifetime GB2485755B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8700286 1987-01-13

Publications (3)

Publication Number Publication Date
GB8800260D0 GB8800260D0 (en) 2011-02-02
GB2485755A GB2485755A (en) 2012-05-30
GB2485755B true GB2485755B (en) 2012-11-14

Family

ID=43049524

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8800260.5A Expired - Lifetime GB2485755B (en) 1987-01-13 1988-01-07 Digital frequency synthesiser

Country Status (2)

Country Link
DE (1) DE3800505B3 (en)
GB (1) GB2485755B (en)

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
DE3800505B3 (en) 2010-12-09
GB8800260D0 (en) 2011-02-02
GB2485755A (en) 2012-05-30

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20080106