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CH302743A - Telephone subscriber station with circuit for back hearing attenuation and adaptation of microphone and receiver. - Google Patents

Telephone subscriber station with circuit for back hearing attenuation and adaptation of microphone and receiver.

Info

Publication number
CH302743A
CH302743A CH302743DA CH302743A CH 302743 A CH302743 A CH 302743A CH 302743D A CH302743D A CH 302743DA CH 302743 A CH302743 A CH 302743A
Authority
CH
Switzerland
Prior art keywords
adaptation
microphone
receiver
circuit
subscriber station
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft Autophon
Original Assignee
Autophon 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
Application filed by Autophon Ag filed Critical Autophon Ag
Publication of CH302743A publication Critical patent/CH302743A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
CH302743D 1952-01-28 1952-01-28 Telephone subscriber station with circuit for back hearing attenuation and adaptation of microphone and receiver. CH302743A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1069320X 1952-01-28

Publications (1)

Publication Number Publication Date
CH302743A true CH302743A (en) 1954-10-31

Family

ID=4555817

Family Applications (1)

Application Number Title Priority Date Filing Date
CH302743D CH302743A (en) 1952-01-28 1952-01-28 Telephone subscriber station with circuit for back hearing attenuation and adaptation of microphone and receiver.

Country Status (3)

Country Link
BE (1) BE516736A (en)
CH (1) CH302743A (en)
FR (1) FR1069320A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1042668B (en) * 1955-02-17 1958-11-06 Ericsson Telefon Ab L M Circuit arrangement for telephone sets provided with number current pusher
DE1060441B (en) * 1957-01-03 1959-07-02 Siemens Ag Albis Circuit arrangement for telephone subscriber stations with Rückhoerdaempfung for automatic operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1042668B (en) * 1955-02-17 1958-11-06 Ericsson Telefon Ab L M Circuit arrangement for telephone sets provided with number current pusher
DE1060441B (en) * 1957-01-03 1959-07-02 Siemens Ag Albis Circuit arrangement for telephone subscriber stations with Rückhoerdaempfung for automatic operation

Also Published As

Publication number Publication date
BE516736A (en)
FR1069320A (en) 1954-07-06

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