CH437438A - Tonfrequentes Tastwahlverfahren mit erneuter Anschaltung eines Registers bei bestehender Verbindung - Google Patents

Tonfrequentes Tastwahlverfahren mit erneuter Anschaltung eines Registers bei bestehender Verbindung

Info

Publication number
CH437438A
CH437438A CH1673965A CH1673965A CH437438A CH 437438 A CH437438 A CH 437438A CH 1673965 A CH1673965 A CH 1673965A CH 1673965 A CH1673965 A CH 1673965A CH 437438 A CH437438 A CH 437438A
Authority
CH
Switzerland
Prior art keywords
connection
tone
register
selection procedure
button selection
Prior art date
Application number
CH1673965A
Other languages
English (en)
Inventor
Gasser Lorenz
Baade Otto
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Publication of CH437438A publication Critical patent/CH437438A/de

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04QSELECTING
    • H04Q3/00Selecting arrangements
    • H04Q3/42Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/26Devices for calling a subscriber
    • H04M1/30Devices which can set up and transmit only one digit at a time
    • H04M1/50Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M11/00Telephonic communication systems specially adapted for combination with other electrical systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephonic Communication Services (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Telephone Function (AREA)
CH1673965A 1964-07-10 1965-12-03 Tonfrequentes Tastwahlverfahren mit erneuter Anschaltung eines Registers bei bestehender Verbindung CH437438A (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEST22384A DE1201417B (de) 1964-07-10 1964-07-10 Tonfrequentes Tastwahlverfahren ohne Gleichstrom-Wahlbegleitzeichen in Fernmelde-, insbesondere Fernsprechanlagen und Schaltungsanordnung zur Durchfuehrung des Verfahrens
DE1236598 1964-12-08
DEST23048A DE1236598B (de) 1964-07-10 1964-12-08 Tonfrequentes Tastwahlverfahren mit erneuter Anschaltung eines Registers bei bestehender Verbindung

Publications (1)

Publication Number Publication Date
CH437438A true CH437438A (de) 1967-06-15

Family

ID=27180474

Family Applications (2)

Application Number Title Priority Date Filing Date
CH961265A CH427923A (de) 1964-07-10 1965-07-08 Tonfrequentes Tastwahlverfahren ohne Gleichstrom-Wahlbegleitzeichen in Fernmelde-, insbesondere Fernsprechanlagen
CH1673965A CH437438A (de) 1964-07-10 1965-12-03 Tonfrequentes Tastwahlverfahren mit erneuter Anschaltung eines Registers bei bestehender Verbindung

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CH961265A CH427923A (de) 1964-07-10 1965-07-08 Tonfrequentes Tastwahlverfahren ohne Gleichstrom-Wahlbegleitzeichen in Fernmelde-, insbesondere Fernsprechanlagen

Country Status (10)

Country Link
US (2) US3454726A (de)
BE (2) BE666711A (de)
CH (2) CH427923A (de)
DE (2) DE1201417B (de)
DK (1) DK119930B (de)
FI (1) FI42107B (de)
FR (2) FR1439664A (de)
GB (2) GB1091576A (de)
NL (2) NL6508853A (de)
SE (1) SE312155B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1537837B1 (de) * 1967-09-28 1970-11-12 Siemens Ag Schaltungsanordnung fuer frequenzselektive Waehlkennzeichenempfaenger in Fernmelde-,insbesondere Fernsprechanlagen
US3665489A (en) * 1969-06-06 1972-05-23 Ericsson Telefon Ab L M Telephone instrument for voice frequency choice of number
US3911223A (en) * 1971-12-02 1975-10-07 Siemens Ag Circuit arrangement for subscriber stations in telecommunications installations, especially telephone installations with auxiliary data traffic
GB1395577A (en) * 1972-05-11 1975-05-29 Standard Telephones Cables Ltd Telephones
JPS5012913A (de) * 1973-06-04 1975-02-10
NL7402574A (nl) * 1974-02-26 1975-08-28 Philips Nv Schakeling voor een toondruktoetskeuzetelefoon- toestel.
AT379478B (de) * 1978-04-15 1986-01-10 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer teilnehmerapparate in fernsprechnebenstellenanlagen mit tonfrequenter tastwahl
US4516781A (en) * 1982-11-17 1985-05-14 Industrial Design Electronic Associates, Inc. Dart game with two microcomputers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1221166A (en) * 1916-04-26 1917-04-03 Western Electric Co Telephone-exchange system.
US2332290A (en) * 1942-08-04 1943-10-19 Bell Telephone Labor Inc Communication system
BE559221A (de) * 1956-07-26
BE565637A (de) * 1957-03-14
BE565636A (de) * 1957-03-14
CH392630A (de) * 1962-02-20 1965-05-31 Autophon Ag Schaltungsanordnung für Telephonteilnehmerstationen zur Erzeugung von je mindestens eine Tonfrequenz enthaltenden Wahlkriterien

Also Published As

Publication number Publication date
NL6508853A (de) 1966-01-11
DK119930B (da) 1971-03-15
DE1201417B (de) 1965-09-23
CH427923A (de) 1967-01-15
GB1085938A (en) 1967-10-04
FI42107B (de) 1970-02-02
US3454726A (en) 1969-07-08
FR89093E (fr) 1967-05-05
NL6515649A (de) 1966-06-09
US3496302A (en) 1970-02-17
SE312155B (de) 1969-07-07
GB1091576A (en) 1967-11-22
DE1236598B (de) 1967-03-16
BE666711A (de) 1966-01-12
BE673410A (de) 1966-06-08
FR1439664A (fr) 1966-05-20

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