HK61379A - Telephone microphone - Google Patents

Telephone microphone

Info

Publication number
HK61379A
HK61379A HK61379A HK61379A HK61379A HK 61379 A HK61379 A HK 61379A HK 61379 A HK61379 A HK 61379A HK 61379 A HK61379 A HK 61379A HK 61379 A HK61379 A HK 61379A
Authority
HK
Hong Kong
Prior art keywords
telephone microphone
microphone
telephone
Prior art date
Application number
HK61379A
Inventor
N W Tester
C M Tabalba
M St Hurley
Original Assignee
Standard Telephones Cables Ltd
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 Standard Telephones Cables Ltd filed Critical Standard Telephones Cables Ltd
Publication of HK61379A publication Critical patent/HK61379A/en

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)
  • Amplifiers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
HK61379A 1975-11-20 1979-08-30 Telephone microphone HK61379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4776875A GB1525964A (en) 1975-11-20 1975-11-20 Telephone microphone

Publications (1)

Publication Number Publication Date
HK61379A true HK61379A (en) 1979-09-07

Family

ID=10446188

Family Applications (1)

Application Number Title Priority Date Filing Date
HK61379A HK61379A (en) 1975-11-20 1979-08-30 Telephone microphone

Country Status (6)

Country Link
AU (1) AU500321B2 (en)
ES (1) ES453482A1 (en)
GB (1) GB1525964A (en)
HK (1) HK61379A (en)
IE (1) IE43640B1 (en)
NZ (1) NZ182460A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2904096C2 (en) * 1979-02-03 1981-01-15 6000 Frankfurt Circuit arrangement for telecommunications equipment equipped with an amplifier network
FR2494530B1 (en) * 1980-11-17 1987-09-25 Horlogerie Photograph Fse TELEPHONE UNIT COMPRISING A CARRIER CURRENT PREAMPLIFIER, A MIC INTERRUPT SWITCH AND A DEVICE FOR SIGNALING SUCH INTERRUPTION
DE3244240C1 (en) * 1982-11-08 1984-03-15 Sodeco-Saia AG, 1211 Genève Telephone station with low power consumption
GB8317555D0 (en) * 1983-06-28 1983-08-03 Gibson Dawson J Microphone

Also Published As

Publication number Publication date
GB1525964A (en) 1978-09-27
ES453482A1 (en) 1977-11-16
AU500321B2 (en) 1979-05-17
NZ182460A (en) 1980-08-26
AU1956776A (en) 1978-05-18
IE43640B1 (en) 1981-04-22

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