ATE9253T1 - Vorverstaerker mit traegerstrom, schalter zum unterbrechen des mikrophons und eine vorrichtung zum signalisieren dieser unterbrechung enthaltender fernsprechapparat. - Google Patents

Vorverstaerker mit traegerstrom, schalter zum unterbrechen des mikrophons und eine vorrichtung zum signalisieren dieser unterbrechung enthaltender fernsprechapparat.

Info

Publication number
ATE9253T1
ATE9253T1 AT81109647T AT81109647T ATE9253T1 AT E9253 T1 ATE9253 T1 AT E9253T1 AT 81109647 T AT81109647 T AT 81109647T AT 81109647 T AT81109647 T AT 81109647T AT E9253 T1 ATE9253 T1 AT E9253T1
Authority
AT
Austria
Prior art keywords
switch
interrupting
preamplifier
interruption
microphone
Prior art date
Application number
AT81109647T
Other languages
German (de)
English (en)
Inventor
Jean Montenont
Original Assignee
Francaise Horlogerie Photo
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 Francaise Horlogerie Photo filed Critical Francaise Horlogerie Photo
Application granted granted Critical
Publication of ATE9253T1 publication Critical patent/ATE9253T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/6008—Substation equipment, e.g. for use by subscribers including speech amplifiers in the transmitter circuit

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Telephone Function (AREA)
  • Optical Communication System (AREA)
  • Transceivers (AREA)
AT81109647T 1980-11-17 1981-11-12 Vorverstaerker mit traegerstrom, schalter zum unterbrechen des mikrophons und eine vorrichtung zum signalisieren dieser unterbrechung enthaltender fernsprechapparat. ATE9253T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8024599A FR2494530B1 (fr) 1980-11-17 1980-11-17 Poste telephonique comportant un preamplificateur a courant porteur, un interrupteur de coupure de micro et un dispositif de signalisation de cette coupure
EP81109647A EP0052347B1 (fr) 1980-11-17 1981-11-12 Poste téléphonique comportant un préamplificateur à courant porteur, un interrupteur de coupure de micro et un dispositif de signalisation de cette coupure

Publications (1)

Publication Number Publication Date
ATE9253T1 true ATE9253T1 (de) 1984-09-15

Family

ID=9248148

Family Applications (1)

Application Number Title Priority Date Filing Date
AT81109647T ATE9253T1 (de) 1980-11-17 1981-11-12 Vorverstaerker mit traegerstrom, schalter zum unterbrechen des mikrophons und eine vorrichtung zum signalisieren dieser unterbrechung enthaltender fernsprechapparat.

Country Status (7)

Country Link
EP (1) EP0052347B1 (enExample)
JP (1) JPS57112161A (enExample)
AT (1) ATE9253T1 (enExample)
DE (1) DE3165869D1 (enExample)
ES (1) ES507791A0 (enExample)
FR (1) FR2494530B1 (enExample)
GR (1) GR76934B (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63151119A (ja) * 1986-12-15 1988-06-23 Nec Corp プレス検出回路
US11928385B2 (en) 2019-07-30 2024-03-12 Hewlett-Packard Development Company, L.P. Sound processing logic connections

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH341195A (de) * 1956-11-09 1959-09-30 Zellweger Uster Ag Verfahren zum Einbau eines Transistorverstärkers in einen Telephonteilnehmerapparat und Mikrophonkapsel zur Durchführung des Verfahrens
GB1525964A (en) * 1975-11-20 1978-09-27 Standard Telephones Cables Ltd Telephone microphone

Also Published As

Publication number Publication date
DE3165869D1 (en) 1984-10-11
FR2494530B1 (fr) 1987-09-25
EP0052347A1 (fr) 1982-05-26
FR2494530A1 (fr) 1982-05-21
JPS57112161A (en) 1982-07-13
EP0052347B1 (fr) 1984-09-05
ES8301085A1 (es) 1982-11-01
ES507791A0 (es) 1982-11-01
GR76934B (enExample) 1984-09-04

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties