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GR68381B - - Google Patents

Info

Publication number
GR68381B
GR68381B GR62135A GR800162135A GR68381B GR 68381 B GR68381 B GR 68381B GR 62135 A GR62135 A GR 62135A GR 800162135 A GR800162135 A GR 800162135A GR 68381 B GR68381 B GR 68381B
Authority
GR
Greece
Prior art keywords
frequency divider
flop
divider
flip
output
Prior art date
Application number
GR62135A
Other languages
English (en)
Inventor
Bernhard Ahl
Original Assignee
Licentia Gmbh
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 Licentia Gmbh filed Critical Licentia Gmbh
Publication of GR68381B publication Critical patent/GR68381B/el

Links

Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G06F1/025—Digital function generators for functions having two-valued amplitude, e.g. Walsh functions
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2101/00—Indexing scheme relating to the type of digital function generated
    • G06F2101/04—Trigonometric functions

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Circuits Of Receivers In General (AREA)
GR62135A 1979-06-20 1980-06-05 GR68381B (el)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2924752A DE2924752C2 (de) 1979-06-20 1979-06-20 Tongenerator zur Erzeugung von Signalisierungsfrequenzen in einem MFV-Fernsprechapparat

Publications (1)

Publication Number Publication Date
GR68381B true GR68381B (el) 1981-12-28

Family

ID=6073598

Family Applications (1)

Application Number Title Priority Date Filing Date
GR62135A GR68381B (el) 1979-06-20 1980-06-05

Country Status (5)

Country Link
EP (1) EP0021296B1 (el)
AT (1) ATE4478T1 (el)
DE (1) DE2924752C2 (el)
ES (1) ES492567A0 (el)
GR (1) GR68381B (el)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471170A (en) * 1983-02-24 1984-09-11 Motorola, Inc. Non-integer programmable counter
NL8303701A (nl) * 1983-10-27 1985-05-17 Philips Nv Dtmf-telefoontoestel met meervoudig gebruik van de logica van de digitale toongenerator.
DE3426915C2 (de) * 1984-07-21 1987-05-14 Telefonbau Und Normalzeit Gmbh, 6000 Frankfurt Verfahren zur Erzeugung eines akustischen Rufsignals
US5481230A (en) * 1994-11-14 1996-01-02 Tektronix, Inc. Phase modulator having individually placed edges

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3657657A (en) * 1970-08-03 1972-04-18 William T Jefferson Digital sine wave generator
NL160687C (nl) * 1972-06-10 1979-11-15 Philips Nv Toongenerator voor het opwekken van gekozen frequenties.
US3941942A (en) * 1974-01-02 1976-03-02 Motorola, Inc. Two of eight tone encoder

Also Published As

Publication number Publication date
DE2924752C2 (de) 1984-02-02
EP0021296A1 (de) 1981-01-07
ES8102759A1 (es) 1981-02-16
EP0021296B1 (de) 1983-08-17
ES492567A0 (es) 1981-02-16
DE2924752A1 (de) 1981-01-08
ATE4478T1 (de) 1983-09-15

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