JPS4960607A - - Google Patents
Info
- Publication number
- JPS4960607A JPS4960607A JP48093406A JP9340673A JPS4960607A JP S4960607 A JPS4960607 A JP S4960607A JP 48093406 A JP48093406 A JP 48093406A JP 9340673 A JP9340673 A JP 9340673A JP S4960607 A JPS4960607 A JP S4960607A
- Authority
- JP
- Japan
- 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
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
- H04M1/6025—Substation equipment, e.g. for use by subscribers including speech amplifiers implemented as integrated speech networks
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Interconnected Communication Systems, Intercoms, And Interphones (AREA)
- Interface Circuits In Exchanges (AREA)
- Control Of Amplification And Gain Control (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3908372A GB1406663A (en) | 1972-08-22 | 1972-08-22 | Telphone subset circuits |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4960607A true JPS4960607A (https=) | 1974-06-12 |
| JPS5524299B2 JPS5524299B2 (https=) | 1980-06-27 |
Family
ID=10407538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9340673A Expired JPS5524299B2 (https=) | 1972-08-22 | 1973-08-22 |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US3899643A (https=) |
| JP (1) | JPS5524299B2 (https=) |
| AR (1) | AR198002A1 (https=) |
| BE (1) | BE803863A (https=) |
| BR (1) | BR7306478D0 (https=) |
| CA (1) | CA982715A (https=) |
| CH (1) | CH566095A5 (https=) |
| DE (1) | DE2340371A1 (https=) |
| ES (1) | ES418060A1 (https=) |
| FR (1) | FR2197286B1 (https=) |
| GB (1) | GB1406663A (https=) |
| HK (1) | HK38876A (https=) |
| IT (1) | IT992796B (https=) |
| PL (1) | PL86991B1 (https=) |
| SU (1) | SU592380A3 (https=) |
| ZA (1) | ZA734369B (https=) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59500345A (ja) * | 1982-03-04 | 1984-03-01 | エステイーシー・ピーエルシー | 波形クリッピング回路 |
| JPS59500344A (ja) * | 1982-03-04 | 1984-03-01 | エステイーシー・ピーエルシー | 利得調整回路 |
| JPS60142655A (ja) * | 1983-12-15 | 1985-07-27 | エヌ・ベー・フイリツプス・フルーイランペンフアブリケン | 音声伝送回路 |
| JPS6157736U (https=) * | 1984-09-21 | 1986-04-18 |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4002852A (en) * | 1975-07-08 | 1977-01-11 | International Telephone And Telegraph Corporation | Electronic telephone network |
| US3963876A (en) * | 1975-06-30 | 1976-06-15 | Bell Telephone Laboratories, Incorporated | Amplifier circuit for increasing transmit and receive levels in a telephone hybrid network |
| CA1056970A (en) * | 1977-01-10 | 1979-06-19 | Northern Telecom Limited | Electronic network for telephone set |
| US4178484A (en) * | 1977-06-27 | 1979-12-11 | Vincent Ogden W | Long line telephone system with an amplifying substation |
| US4326109A (en) * | 1980-04-11 | 1982-04-20 | Northern Telecom Limited | Apparatus for coupling a two-way transmission path to a one-way transmitting path and a one-way receiving path |
| CA1186826A (en) * | 1981-03-18 | 1985-05-07 | Jin H. Yun | Loudspeaker telephone system |
| US4414432A (en) * | 1981-09-21 | 1983-11-08 | Zenith Radio Corporation | Pseudo-full duplex television/telephone loudspeaker system |
| JPS58109749U (ja) * | 1982-01-20 | 1983-07-26 | 株式会社リコー | 容器 |
| FR2538661A1 (fr) * | 1982-12-28 | 1984-06-29 | Thomson Csf | Circuit electrique assurant les fonctions de base d'un poste telephonique d'abonne |
| GB2142509A (en) * | 1983-06-28 | 1985-01-16 | Emhart Ind | Audio amplifier |
| US4577310A (en) * | 1984-05-16 | 1986-03-18 | Tie/Communications, Inc. | Station interface for digital electronic telephone switching system having centralized digital audio processor |
| JP3022807B2 (ja) * | 1997-05-30 | 2000-03-21 | 埼玉日本電気株式会社 | 携帯電話装置 |
| US7164319B2 (en) * | 2005-04-29 | 2007-01-16 | Triquint Semiconductor, Inc. | Power amplifier with multi mode gain circuit |
| CN103661153A (zh) * | 2012-09-11 | 2014-03-26 | 上海博泰悦臻电子设备制造有限公司 | 车载设备及车载usb接口终端设备 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3592971A (en) * | 1969-12-01 | 1971-07-13 | Northern Electric Co | Equalizing and antisidetone telephone circuit |
| BE759917A (fr) * | 1969-12-08 | 1971-05-17 | Western Electric Co | Reseau a frequence acoustique |
| GB1350205A (en) * | 1970-07-24 | 1974-04-18 | Post Office | Telephone subscribers instrument circuits |
| NL7115947A (https=) * | 1971-11-19 | 1973-05-22 | ||
| BE792329A (fr) * | 1971-12-09 | 1973-06-06 | Int Standard Electric Corp | Circuit de transmission electronique pour poste telephonique |
| US3823273A (en) * | 1971-12-17 | 1974-07-09 | Gte Automatic Electric Lab Inc | Subscriber's telephone circuit |
-
1972
- 1972-08-22 GB GB3908372A patent/GB1406663A/en not_active Expired
-
1973
- 1973-06-27 ZA ZA734369A patent/ZA734369B/xx unknown
- 1973-07-30 US US383735A patent/US3899643A/en not_active Expired - Lifetime
- 1973-08-01 IT IT27382/73A patent/IT992796B/it active
- 1973-08-09 DE DE19732340371 patent/DE2340371A1/de active Pending
- 1973-08-15 CA CA178,864A patent/CA982715A/en not_active Expired
- 1973-08-21 CH CH1198773A patent/CH566095A5/xx not_active IP Right Cessation
- 1973-08-21 ES ES418060A patent/ES418060A1/es not_active Expired
- 1973-08-21 SU SU731953790A patent/SU592380A3/ru active
- 1973-08-22 AR AR249693A patent/AR198002A1/es active
- 1973-08-22 FR FR7330436A patent/FR2197286B1/fr not_active Expired
- 1973-08-22 PL PL1973164785A patent/PL86991B1/pl unknown
- 1973-08-22 BE BE2052999A patent/BE803863A/xx not_active IP Right Cessation
- 1973-08-22 BR BR6478/73A patent/BR7306478D0/pt unknown
- 1973-08-22 JP JP9340673A patent/JPS5524299B2/ja not_active Expired
-
1976
- 1976-06-24 HK HK388/76*UA patent/HK38876A/xx unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59500345A (ja) * | 1982-03-04 | 1984-03-01 | エステイーシー・ピーエルシー | 波形クリッピング回路 |
| JPS59500344A (ja) * | 1982-03-04 | 1984-03-01 | エステイーシー・ピーエルシー | 利得調整回路 |
| JPS60142655A (ja) * | 1983-12-15 | 1985-07-27 | エヌ・ベー・フイリツプス・フルーイランペンフアブリケン | 音声伝送回路 |
| JPS6157736U (https=) * | 1984-09-21 | 1986-04-18 |
Also Published As
| Publication number | Publication date |
|---|---|
| CA982715A (en) | 1976-01-27 |
| FR2197286A1 (https=) | 1974-03-22 |
| FR2197286B1 (https=) | 1977-02-25 |
| CH566095A5 (https=) | 1975-08-29 |
| DE2340371A1 (de) | 1974-02-28 |
| ZA734369B (en) | 1974-06-26 |
| AR198002A1 (es) | 1974-05-24 |
| GB1406663A (en) | 1975-09-17 |
| ES418060A1 (es) | 1976-05-01 |
| HK38876A (en) | 1976-07-02 |
| BE803863A (fr) | 1974-02-22 |
| JPS5524299B2 (https=) | 1980-06-27 |
| AU5895873A (en) | 1975-02-06 |
| SU592380A3 (ru) | 1978-02-05 |
| US3899643A (en) | 1975-08-12 |
| IT992796B (it) | 1975-09-30 |
| BR7306478D0 (pt) | 1974-07-11 |
| PL86991B1 (https=) | 1976-06-30 |