CH549318A - ELECTRONIC CIRCUIT ARRANGEMENT FOR DISCONNECTING THE VOICE CIRCUIT OF A TELEPHONE SET DURING THE TRANSMISSION OF THE NUMBERS. - Google Patents

ELECTRONIC CIRCUIT ARRANGEMENT FOR DISCONNECTING THE VOICE CIRCUIT OF A TELEPHONE SET DURING THE TRANSMISSION OF THE NUMBERS.

Info

Publication number
CH549318A
CH549318A CH1467372A CH1467372A CH549318A CH 549318 A CH549318 A CH 549318A CH 1467372 A CH1467372 A CH 1467372A CH 1467372 A CH1467372 A CH 1467372A CH 549318 A CH549318 A CH 549318A
Authority
CH
Switzerland
Prior art keywords
disconnecting
numbers
transmission
telephone set
set during
Prior art date
Application number
CH1467372A
Other languages
German (de)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of CH549318A publication Critical patent/CH549318A/en

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
CH1467372A 1971-10-07 1972-10-06 ELECTRONIC CIRCUIT ARRANGEMENT FOR DISCONNECTING THE VOICE CIRCUIT OF A TELEPHONE SET DURING THE TRANSMISSION OF THE NUMBERS. CH549318A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1266571 1971-10-07

Publications (1)

Publication Number Publication Date
CH549318A true CH549318A (en) 1974-05-15

Family

ID=20296106

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1467372A CH549318A (en) 1971-10-07 1972-10-06 ELECTRONIC CIRCUIT ARRANGEMENT FOR DISCONNECTING THE VOICE CIRCUIT OF A TELEPHONE SET DURING THE TRANSMISSION OF THE NUMBERS.

Country Status (3)

Country Link
CH (1) CH549318A (en)
FR (1) FR2155666A5 (en)
IT (1) IT968706B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2906579B1 (en) * 1979-02-21 1980-07-17 Licentia Gmbh Circuit arrangement for switching from sound-frequency signal delivery to speech mode and vice versa in telecommunications devices

Also Published As

Publication number Publication date
IT968706B (en) 1974-03-20
FR2155666A5 (en) 1973-05-18

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Legal Events

Date Code Title Description
PL Patent ceased