BR8207787A - Gerador de sinal multitonalidade - Google Patents

Gerador de sinal multitonalidade

Info

Publication number
BR8207787A
BR8207787A BR8207787A BR8207787A BR8207787A BR 8207787 A BR8207787 A BR 8207787A BR 8207787 A BR8207787 A BR 8207787A BR 8207787 A BR8207787 A BR 8207787A BR 8207787 A BR8207787 A BR 8207787A
Authority
BR
Brazil
Prior art keywords
multitonal
signal generator
generator
signal
multitonal signal
Prior art date
Application number
BR8207787A
Other languages
English (en)
Inventor
Gerald Paul Labedz
Original Assignee
Motorola Inc
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 Motorola Inc filed Critical Motorola Inc
Publication of BR8207787A publication Critical patent/BR8207787A/pt

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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • H04M1/505—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies signals generated in digital form

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Analogue/Digital Conversion (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Luminescent Compositions (AREA)
  • Details Of Television Scanning (AREA)
  • Electrophonic Musical Instruments (AREA)
BR8207787A 1981-08-03 1982-07-28 Gerador de sinal multitonalidade BR8207787A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28962481A 1981-08-03 1981-08-03
PCT/US1982/001025 WO1983000588A1 (en) 1981-08-03 1982-07-28 Multi-tone signal generator

Publications (1)

Publication Number Publication Date
BR8207787A true BR8207787A (pt) 1983-06-21

Family

ID=23112335

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8207787A BR8207787A (pt) 1981-08-03 1982-07-28 Gerador de sinal multitonalidade

Country Status (9)

Country Link
EP (1) EP0084562B1 (pt)
JP (1) JPS58501254A (pt)
AU (1) AU551531B2 (pt)
BR (1) BR8207787A (pt)
CA (1) CA1194245A (pt)
DE (1) DE3275797D1 (pt)
DK (1) DK142483A (pt)
NO (1) NO830584L (pt)
WO (1) WO1983000588A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4644476A (en) * 1984-06-29 1987-02-17 Wang Laboratories, Inc. Dialing tone generation
FR2570899B1 (fr) * 1984-09-26 1986-12-05 Jeumont Schneider Generateur d'une pluralite de signaux de frequences differentes et emetteur incluant un tel generateur
US5034977A (en) * 1989-04-04 1991-07-23 Industrial Technology Research Institute Phase accumulation dual tone multiple frequency generator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1496141A (fr) * 1966-06-03 1967-09-29 Cit Alcatel Générateur d'ondes modulées en fréquence
US3657657A (en) * 1970-08-03 1972-04-18 William T Jefferson Digital sine wave generator
US4053839A (en) * 1973-05-29 1977-10-11 Knoedl Jr George Method and apparatus for the frequency multiplication of composite waves
US4058805A (en) * 1975-06-16 1977-11-15 Comdial Corporation Digital multitone generator for telephone dialing
US4056692A (en) * 1976-08-02 1977-11-01 International Telephone And Telegraph Corporation Digital tone generator
US4070709A (en) * 1976-10-13 1978-01-24 The United States Of America As Represented By The Secretary Of The Air Force Piecewise linear predictive coding system
US4132871A (en) * 1977-06-22 1979-01-02 Fairchild Camera And Instrument Corporation Digitally synthesized multi-frequency signal generator
US4134072A (en) * 1977-09-06 1979-01-09 Rca Corporation Direct digital frequency synthesizer
US4192007A (en) * 1978-05-30 1980-03-04 Lorain Products Corporation Programmable ringing generator
GB2036483B (en) * 1978-11-23 1982-12-15 Gen Electric Sinusoidal waveform generator
US4349704A (en) * 1979-12-31 1982-09-14 Bell Telephone Laboratories, Incorporated Digital multifrequency signal generator
US4320522A (en) * 1980-05-09 1982-03-16 Harris Corporation Programmable frequency and signalling format tone frequency encoder/decoder circuit

Also Published As

Publication number Publication date
EP0084562B1 (en) 1987-03-18
JPS58501254A (ja) 1983-07-28
DK142483D0 (da) 1983-03-29
CA1194245A (en) 1985-09-24
EP0084562A1 (en) 1983-08-03
AU8821882A (en) 1983-02-22
EP0084562A4 (en) 1984-03-26
AU551531B2 (en) 1986-05-01
DE3275797D1 (en) 1987-04-23
DK142483A (da) 1983-03-29
NO830584L (no) 1983-02-21
WO1983000588A1 (en) 1983-02-17

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