ES507791A0 - Perfeccionamientos en la fabricacion de aparatos telefonicos . - Google Patents

Perfeccionamientos en la fabricacion de aparatos telefonicos .

Info

Publication number
ES507791A0
ES507791A0 ES507791A ES507791A ES507791A0 ES 507791 A0 ES507791 A0 ES 507791A0 ES 507791 A ES507791 A ES 507791A ES 507791 A ES507791 A ES 507791A ES 507791 A0 ES507791 A0 ES 507791A0
Authority
ES
Spain
Prior art keywords
hand set
pre amplifier
switch
transmission
disposed
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
ES507791A
Other languages
English (en)
Spanish (es)
Other versions
ES8301085A1 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HORLOGERIE PHOTOGRAPH FSE
Horlogerie Photographique Francaise SA
Original Assignee
HORLOGERIE PHOTOGRAPH FSE
Horlogerie Photographique Francaise SA
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 HORLOGERIE PHOTOGRAPH FSE, Horlogerie Photographique Francaise SA filed Critical HORLOGERIE PHOTOGRAPH FSE
Publication of ES8301085A1 publication Critical patent/ES8301085A1/es
Publication of ES507791A0 publication Critical patent/ES507791A0/es
Granted legal-status Critical Current

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)
ES507791A 1980-11-17 1981-11-17 Perfeccionamientos en la fabricacion de aparatos telefonicos . Granted ES507791A0 (es)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
ES8301085A1 ES8301085A1 (es) 1982-11-01
ES507791A0 true ES507791A0 (es) 1982-11-01

Family

ID=9248148

Family Applications (1)

Application Number Title Priority Date Filing Date
ES507791A Granted ES507791A0 (es) 1980-11-17 1981-11-17 Perfeccionamientos en la fabricacion de aparatos telefonicos .

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
ATE9253T1 (de) 1984-09-15
GR76934B (enExample) 1984-09-04

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