AU500321B2 - Telephone microphone - Google Patents
Telephone microphoneInfo
- Publication number
- AU500321B2 AU500321B2 AU19567/76A AU1956776A AU500321B2 AU 500321 B2 AU500321 B2 AU 500321B2 AU 19567/76 A AU19567/76 A AU 19567/76A AU 1956776 A AU1956776 A AU 1956776A AU 500321 B2 AU500321 B2 AU 500321B2
- Authority
- AU
- Australia
- Prior art keywords
- telephone microphone
- microphone
- telephone
- 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.)
- Expired
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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4776875A GB1525964A (en) | 1975-11-20 | 1975-11-20 | Telephone microphone |
GBGB47768/75 | 1975-11-20 |
Publications (2)
Publication Number | Publication Date |
---|---|
AU1956776A AU1956776A (en) | 1978-05-18 |
AU500321B2 true AU500321B2 (en) | 1979-05-17 |
Family
ID=10446188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU19567/76A Expired AU500321B2 (en) | 1975-11-20 | 1976-11-12 | 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)
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 |
-
1975
- 1975-11-20 GB GB4776875A patent/GB1525964A/en not_active Expired
-
1976
- 1976-10-26 IE IE236276A patent/IE43640B1/en unknown
- 1976-10-29 NZ NZ18246076A patent/NZ182460A/en unknown
- 1976-11-12 AU AU19567/76A patent/AU500321B2/en not_active Expired
- 1976-11-19 ES ES453482A patent/ES453482A1/en not_active Expired
-
1979
- 1979-08-30 HK HK61379A patent/HK61379A/en unknown
Also Published As
Publication number | Publication date |
---|---|
AU1956776A (en) | 1978-05-18 |
HK61379A (en) | 1979-09-07 |
GB1525964A (en) | 1978-09-27 |
IE43640B1 (en) | 1981-04-22 |
NZ182460A (en) | 1980-08-26 |
ES453482A1 (en) | 1977-11-16 |
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