JPS5524299B2 - - Google Patents

Info

Publication number
JPS5524299B2
JPS5524299B2 JP9340673A JP9340673A JPS5524299B2 JP S5524299 B2 JPS5524299 B2 JP S5524299B2 JP 9340673 A JP9340673 A JP 9340673A JP 9340673 A JP9340673 A JP 9340673A JP S5524299 B2 JPS5524299 B2 JP S5524299B2
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.)
Expired
Application number
JP9340673A
Other versions
JPS4960607A (ja
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 filed Critical
Publication of JPS4960607A publication Critical patent/JPS4960607A/ja
Publication of JPS5524299B2 publication Critical patent/JPS5524299B2/ja
Expired 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
    • H04M1/6025—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)
  • Interface Circuits In Exchanges (AREA)
  • Control Of Amplification And Gain Control (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
JP9340673A 1972-08-22 1973-08-22 Expired JPS5524299B2 (ja)

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 JPS4960607A (ja) 1974-06-12
JPS5524299B2 true JPS5524299B2 (ja) 1980-06-27

Family

ID=10407538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9340673A Expired JPS5524299B2 (ja) 1972-08-22 1973-08-22

Country Status (16)

Country Link
US (1) US3899643A (ja)
JP (1) JPS5524299B2 (ja)
AR (1) AR198002A1 (ja)
BE (1) BE803863A (ja)
BR (1) BR7306478D0 (ja)
CA (1) CA982715A (ja)
CH (1) CH566095A5 (ja)
DE (1) DE2340371A1 (ja)
ES (1) ES418060A1 (ja)
FR (1) FR2197286B1 (ja)
GB (1) GB1406663A (ja)
HK (1) HK38876A (ja)
IT (1) IT992796B (ja)
PL (1) PL86991B1 (ja)
SU (1) SU592380A3 (ja)
ZA (1) ZA734369B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109749U (ja) * 1982-01-20 1983-07-26 株式会社リコー 容器

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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
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
US4502018A (en) * 1982-03-04 1985-02-26 International Standard Electric Corporation Gain regulation circuit for an amplifier circuit
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
NL8304312A (nl) * 1983-12-15 1985-07-01 Philips Nv Telefooncircuit met klasse-b versterker.
US4577310A (en) * 1984-05-16 1986-03-18 Tie/Communications, Inc. Station interface for digital electronic telephone switching system having centralized digital audio processor
JPH039410Y2 (ja) * 1984-09-21 1991-03-08
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)

* Cited by examiner, † Cited by third party
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 (ja) * 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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58109749U (ja) * 1982-01-20 1983-07-26 株式会社リコー 容器

Also Published As

Publication number Publication date
CH566095A5 (ja) 1975-08-29
SU592380A3 (ru) 1978-02-05
DE2340371A1 (de) 1974-02-28
PL86991B1 (ja) 1976-06-30
AU5895873A (en) 1975-02-06
US3899643A (en) 1975-08-12
FR2197286B1 (ja) 1977-02-25
AR198002A1 (es) 1974-05-24
HK38876A (en) 1976-07-02
ZA734369B (en) 1974-06-26
GB1406663A (en) 1975-09-17
FR2197286A1 (ja) 1974-03-22
JPS4960607A (ja) 1974-06-12
CA982715A (en) 1976-01-27
BR7306478D0 (pt) 1974-07-11
IT992796B (it) 1975-09-30
ES418060A1 (es) 1976-05-01
BE803863A (fr) 1974-02-22

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