NL7207933A - - Google Patents

Info

Publication number
NL7207933A
NL7207933A NL7207933A NL7207933A NL7207933A NL 7207933 A NL7207933 A NL 7207933A NL 7207933 A NL7207933 A NL 7207933A NL 7207933 A NL7207933 A NL 7207933A NL 7207933 A NL7207933 A NL 7207933A
Authority
NL
Netherlands
Application number
NL7207933A
Other versions
NL160687C (nl
NL160687B (nl
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 filed Critical
Priority to NL7207933.A priority Critical patent/NL160687C/xx
Priority to US00364969A priority patent/US3832639A/en
Priority to CA173,408A priority patent/CA1001236A/en
Priority to IT50551/73A priority patent/IT986136B/it
Priority to FR7320707A priority patent/FR2188360B1/fr
Priority to DE19732328992 priority patent/DE2328992C3/de
Priority to JP48063461A priority patent/JPS5748883B2/ja
Priority to GB2717473A priority patent/GB1399200A/en
Priority to DK316273A priority patent/DK143676C/da
Priority to ES415718A priority patent/ES415718A1/es
Priority to BE132123A priority patent/BE800738A/xx
Publication of NL7207933A publication Critical patent/NL7207933A/xx
Publication of NL160687B publication Critical patent/NL160687B/xx
Application granted granted Critical
Publication of NL160687C publication Critical patent/NL160687C/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/68—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a base which is a non-integer
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K23/00—Pulse counters comprising counting chains; Frequency dividers comprising counting chains
    • H03K23/64—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two
    • H03K23/66—Pulse counters comprising counting chains; Frequency dividers comprising counting chains with a base or radix other than a power of two with a variable counting base, e.g. by presetting or by adding or suppressing pulses
    • 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)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Analogue/Digital Conversion (AREA)
NL7207933.A 1972-06-10 1972-06-10 Toongenerator voor het opwekken van gekozen frequenties. NL160687C (nl)

Priority Applications (11)

Application Number Priority Date Filing Date Title
NL7207933.A NL160687C (nl) 1972-06-10 1972-06-10 Toongenerator voor het opwekken van gekozen frequenties.
US00364969A US3832639A (en) 1972-06-10 1973-05-29 Tone generator for generating selected frequencies
CA173,408A CA1001236A (en) 1972-06-10 1973-06-06 Tone generator for generating selected frequencies
FR7320707A FR2188360B1 (enrdf_load_stackoverflow) 1972-06-10 1973-06-07
DE19732328992 DE2328992C3 (de) 1972-06-10 1973-06-07 Tongenerator zum erzeugen ausgewaehlter frequenzen
JP48063461A JPS5748883B2 (enrdf_load_stackoverflow) 1972-06-10 1973-06-07
IT50551/73A IT986136B (it) 1972-06-10 1973-06-07 Generatore di tono per la genera zione di frequenze selezionate te
GB2717473A GB1399200A (en) 1972-06-10 1973-06-07 Tone generator for generating selected frequencies
DK316273A DK143676C (da) 1972-06-10 1973-06-07 Tonegenerator til tilvejebringelse af signaler med udvalgte frekvenser
ES415718A ES415718A1 (es) 1972-06-10 1973-06-08 Un dispositivo generador de frecuencia audible para generarvarias frecuencias seleccionadas.
BE132123A BE800738A (fr) 1972-06-10 1973-06-08 Generateur de son pour engendrer des frequences desirees

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7207933.A NL160687C (nl) 1972-06-10 1972-06-10 Toongenerator voor het opwekken van gekozen frequenties.

Publications (3)

Publication Number Publication Date
NL7207933A true NL7207933A (enrdf_load_stackoverflow) 1973-12-12
NL160687B NL160687B (nl) 1979-06-15
NL160687C NL160687C (nl) 1979-11-15

Family

ID=19816248

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7207933.A NL160687C (nl) 1972-06-10 1972-06-10 Toongenerator voor het opwekken van gekozen frequenties.

Country Status (11)

Country Link
US (1) US3832639A (enrdf_load_stackoverflow)
JP (1) JPS5748883B2 (enrdf_load_stackoverflow)
BE (1) BE800738A (enrdf_load_stackoverflow)
CA (1) CA1001236A (enrdf_load_stackoverflow)
DE (1) DE2328992C3 (enrdf_load_stackoverflow)
DK (1) DK143676C (enrdf_load_stackoverflow)
ES (1) ES415718A1 (enrdf_load_stackoverflow)
FR (1) FR2188360B1 (enrdf_load_stackoverflow)
GB (1) GB1399200A (enrdf_load_stackoverflow)
IT (1) IT986136B (enrdf_load_stackoverflow)
NL (1) NL160687C (enrdf_load_stackoverflow)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2286564A1 (fr) * 1974-09-30 1976-04-23 Roche Bernard Dispositif synthetiseur de signaux a multifrequences
GB1529851A (en) * 1975-01-10 1978-10-25 Gen Instr Microelect Frequency-signalling circuit for a telephone
US3992612A (en) * 1975-10-14 1976-11-16 The United States Of America As Represented By The Secretary Of The Army Rate multiplier
US4025865A (en) * 1976-01-08 1977-05-24 General Instrument Corporation Frequency-signalling circuit for a telephone
US4160173A (en) * 1976-12-14 1979-07-03 Tokyo Shibaura Electric Co., Ltd. Logic circuit with two pairs of cross-coupled nand/nor gates
JPS546845U (enrdf_load_stackoverflow) * 1977-06-17 1979-01-17
FR2452823A1 (fr) * 1979-03-30 1980-10-24 Texas Instruments France Generateur de signaux a basse frequence, notamment de signaux de tonalite pour communications telephoniques
DE2924752C2 (de) * 1979-06-20 1984-02-02 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Tongenerator zur Erzeugung von Signalisierungsfrequenzen in einem MFV-Fernsprechapparat
US4421952A (en) * 1981-10-16 1983-12-20 Motorola, Inc. Multi-frequency busy signal synthesizing circuitry
NL8301366A (nl) * 1983-04-19 1984-11-16 Philips Nv Transmissieschakeling voor een dtmf-telefoontoestel.
US4698619A (en) * 1984-05-07 1987-10-06 Honeywell Inc. Variable frequency fire tone generator
HU191730B (en) * 1984-12-19 1987-04-28 Telefongyar Circuit arrangement for generating channel carrier, pilot, system carrier and carrier-receiver frequencies of the multichannel carrier-current telephone equipments of premodulation system
HU191731B (en) * 1984-12-19 1987-04-28 Telefongyar Circuit arrangement for generating system carrier, line pilot and channel carrier-control frequencies of multichannel open cable telephon equipments
JPH0413868Y2 (enrdf_load_stackoverflow) * 1988-11-29 1992-03-30
US5907597A (en) * 1994-08-05 1999-05-25 Smart Tone Authentication, Inc. Method and system for the secure communication of data

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215860A (en) * 1962-11-23 1965-11-02 Epsco Inc Clock pulse controlled sine wave synthesizer
FR1496141A (fr) * 1966-06-03 1967-09-29 Cit Alcatel Générateur d'ondes modulées en fréquence
US3551826A (en) * 1968-05-16 1970-12-29 Raytheon Co Frequency multiplier and frequency waveform generator
US3623160A (en) * 1969-09-17 1971-11-23 Sanders Associates Inc Data modulator employing sinusoidal synthesis
US3657657A (en) * 1970-08-03 1972-04-18 William T Jefferson Digital sine wave generator
NL7107040A (enrdf_load_stackoverflow) * 1971-05-22 1972-11-24
US3752973A (en) * 1971-06-30 1973-08-14 Leybold Heraeus Verwaltung Apparatus for producing voltage functions

Also Published As

Publication number Publication date
DK143676B (da) 1981-09-21
NL160687C (nl) 1979-11-15
JPS5748883B2 (enrdf_load_stackoverflow) 1982-10-19
ES415718A1 (es) 1976-02-01
US3832639A (en) 1974-08-27
CA1001236A (en) 1976-12-07
DE2328992C3 (de) 1977-11-24
DE2328992B2 (de) 1977-04-14
FR2188360A1 (enrdf_load_stackoverflow) 1974-01-18
DE2328992A1 (de) 1973-12-20
IT986136B (it) 1975-01-20
BE800738A (fr) 1973-12-10
DK143676C (da) 1982-03-01
NL160687B (nl) 1979-06-15
JPS4951854A (enrdf_load_stackoverflow) 1974-05-20
FR2188360B1 (enrdf_load_stackoverflow) 1983-05-06
GB1399200A (en) 1975-06-25

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Legal Events

Date Code Title Description
V1 Lapsed because of non-payment of the annual fee
NL80 Information provided on patent owner name for an already discontinued patent

Owner name: PHILIPS