CH397005A - Schaltungsanordnung für eine tonfrequente Tastwahl - Google Patents

Schaltungsanordnung für eine tonfrequente Tastwahl

Info

Publication number
CH397005A
CH397005A CH1158561A CH1158561A CH397005A CH 397005 A CH397005 A CH 397005A CH 1158561 A CH1158561 A CH 1158561A CH 1158561 A CH1158561 A CH 1158561A CH 397005 A CH397005 A CH 397005A
Authority
CH
Switzerland
Prior art keywords
tone
circuit arrangement
touch selection
frequency touch
frequency
Prior art date
Application number
CH1158561A
Other languages
English (en)
Inventor
Horst Dipl Ing Schneider
Vogel Georg
Original Assignee
Standard Telephon & Radio Ag
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
Priority to NL268873D priority Critical patent/NL268873A/xx
Priority to DEST16864A priority patent/DE1121121B/de
Application filed by Standard Telephon & Radio Ag filed Critical Standard Telephon & Radio Ag
Priority to CH1158561A priority patent/CH397005A/de
Publication of CH397005A publication Critical patent/CH397005A/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
CH1158561A 1960-09-02 1961-10-06 Schaltungsanordnung für eine tonfrequente Tastwahl CH397005A (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL268873D NL268873A (de) 1961-10-06
DEST16864A DE1121121B (de) 1960-09-02 1960-09-02 Schaltungsanordnung fuer die tonfrequente Tastwahl in Fernmelde-, insbesondere Fernsprechanlagen
CH1158561A CH397005A (de) 1961-10-06 1961-10-06 Schaltungsanordnung für eine tonfrequente Tastwahl

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1158561A CH397005A (de) 1961-10-06 1961-10-06 Schaltungsanordnung für eine tonfrequente Tastwahl

Publications (1)

Publication Number Publication Date
CH397005A true CH397005A (de) 1965-08-15

Family

ID=4374899

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1158561A CH397005A (de) 1960-09-02 1961-10-06 Schaltungsanordnung für eine tonfrequente Tastwahl

Country Status (2)

Country Link
CH (1) CH397005A (de)
NL (1) NL268873A (de)

Also Published As

Publication number Publication date
NL268873A (de)

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