DK114708B - Sendeindretning for et tonefrekvens-trykknapvælgeranlæg. - Google Patents

Sendeindretning for et tonefrekvens-trykknapvælgeranlæg.

Info

Publication number
DK114708B
DK114708B DK614265AA DK614265A DK114708B DK 114708 B DK114708 B DK 114708B DK 614265A A DK614265A A DK 614265AA DK 614265 A DK614265 A DK 614265A DK 114708 B DK114708 B DK 114708B
Authority
DK
Denmark
Prior art keywords
transmitting device
tone frequency
selector system
pushbutton selector
pushbutton
Prior art date
Application number
DK614265AA
Other languages
English (en)
Inventor
J Schalkwijk
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of DK114708B publication Critical patent/DK114708B/da

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Push-Button Switches (AREA)
  • Prostheses (AREA)
  • Telephonic Communication Services (AREA)
DK614265AA 1964-12-03 1965-11-30 Sendeindretning for et tonefrekvens-trykknapvælgeranlæg. DK114708B (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA792305T
NL6414016A NL6414016A (da) 1964-12-03 1964-12-03

Publications (1)

Publication Number Publication Date
DK114708B true DK114708B (da) 1969-07-28

Family

ID=76222733

Family Applications (1)

Application Number Title Priority Date Filing Date
DK614265AA DK114708B (da) 1964-12-03 1965-11-30 Sendeindretning for et tonefrekvens-trykknapvælgeranlæg.

Country Status (12)

Country Link
US (1) US3648202A (da)
JP (1) JPS4220213B1 (da)
AT (1) AT253574B (da)
BE (1) BE673152A (da)
CA (1) CA792305A (da)
DE (1) DE1265216B (da)
DK (1) DK114708B (da)
ES (1) ES320241A1 (da)
FR (1) FR1456302A (da)
GB (1) GB1083930A (da)
NL (1) NL6414016A (da)
SE (1) SE313848B (da)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470497A1 (fr) * 1979-11-23 1981-05-29 Cit Alcatel Clavier d'appel de poste telephonique automatique utilisant des techniques analogiques
FR3027143B1 (fr) 2014-10-10 2016-11-11 Parrot Appareil mobile, notamment drone a voilure tournante, muni d'une camera video delivrant des sequences d'images corrigees dynamiquement de l'effet "wobble"

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB299955A (en) * 1927-09-14 1928-11-08 Siemens Brothers & Co Ltd Improvements relating to key senders in automatic and semi-automatic telephone systems
US2294178A (en) * 1939-11-10 1942-08-25 Hammond Instr Co Electrical musical instrument
NL242923A (da) * 1958-09-08
US3060275A (en) * 1958-11-07 1962-10-23 Bell Telephone Labor Inc Telephone system signaling
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
DE1265216B (de) 1968-04-04
NL6414016A (da) 1966-06-06
BE673152A (da) 1966-06-01
JPS4220213B1 (da) 1967-10-09
GB1083930A (en) 1967-09-20
FR1456302A (fr) 1966-10-21
ES320241A1 (es) 1966-06-16
CA792305A (en) 1968-08-13
SE313848B (da) 1969-08-25
AT253574B (de) 1967-04-10
US3648202A (en) 1972-03-07

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