DE3263139D1 - Device for digital frequency generation - Google Patents

Device for digital frequency generation

Info

Publication number
DE3263139D1
DE3263139D1 DE8282401587T DE3263139T DE3263139D1 DE 3263139 D1 DE3263139 D1 DE 3263139D1 DE 8282401587 T DE8282401587 T DE 8282401587T DE 3263139 T DE3263139 T DE 3263139T DE 3263139 D1 DE3263139 D1 DE 3263139D1
Authority
DE
Germany
Prior art keywords
frequency generation
digital frequency
digital
generation
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
Application number
DE8282401587T
Other languages
English (en)
Inventor
Guy Pierre Kerdoncuff
Jacques Henri Provendier
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.)
Societe Anonyme de Telecommunications SAT
Original Assignee
Societe Anonyme de Telecommunications SAT
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 Societe Anonyme de Telecommunications SAT filed Critical Societe Anonyme de Telecommunications SAT
Application granted granted Critical
Publication of DE3263139D1 publication Critical patent/DE3263139D1/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/30—Signalling arrangements; Manipulation of signalling currents
    • H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
    • H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
    • H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
    • H04Q1/457—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals
    • H04Q1/4575—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling with conversion of multifrequency signals into digital signals which are transmitted in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Complex Calculations (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
DE8282401587T 1981-08-28 1982-08-26 Device for digital frequency generation Expired DE3263139D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8116441A FR2512293B1 (fr) 1981-08-28 1981-08-28 Procede de codage d'une frequence et dispositif generateur de tonalites obtenu par le procede

Publications (1)

Publication Number Publication Date
DE3263139D1 true DE3263139D1 (en) 1985-05-23

Family

ID=9261740

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8282401587T Expired DE3263139D1 (en) 1981-08-28 1982-08-26 Device for digital frequency generation

Country Status (4)

Country Link
US (1) US4599700A (de)
EP (1) EP0073720B1 (de)
DE (1) DE3263139D1 (de)
FR (1) FR2512293B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4719592A (en) * 1982-11-20 1988-01-12 International Computers Limited Sequence generator
KR100387042B1 (ko) * 1995-12-30 2003-08-14 삼성전자주식회사 톤신호발생장치

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3772681A (en) * 1970-10-14 1973-11-13 Post Office Frequency synthesiser
US3735269A (en) * 1971-10-29 1973-05-22 Rockland Systems Corp Digital frequency synthesizer
US3898446A (en) * 1974-09-06 1975-08-05 Us Army Quadratic phase memory
US3985966A (en) * 1975-07-23 1976-10-12 Rolm Corporation Method and apparatus for generating digital dual frequency signals
US4114189A (en) * 1975-12-09 1978-09-12 The United States Of America As Represented By The Secretary Of The Navy Digital signal synthesis system
US4482974A (en) * 1982-08-13 1984-11-13 Hewlett-Packard Company Apparatus and method of phase-to-amplitude conversion in a sine function generator

Also Published As

Publication number Publication date
US4599700A (en) 1986-07-08
EP0073720B1 (de) 1985-04-17
FR2512293B1 (fr) 1985-12-27
EP0073720A1 (de) 1983-03-09
FR2512293A1 (fr) 1983-03-04

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Legal Events

Date Code Title Description
8339 Ceased/non-payment of the annual fee