BE893498A - Reseau vocal electronique pour un poste d'abonne au telephone - Google Patents

Reseau vocal electronique pour un poste d'abonne au telephone

Info

Publication number
BE893498A
BE893498A BE2/59739A BE2059739A BE893498A BE 893498 A BE893498 A BE 893498A BE 2/59739 A BE2/59739 A BE 2/59739A BE 2059739 A BE2059739 A BE 2059739A BE 893498 A BE893498 A BE 893498A
Authority
BE
Belgium
Prior art keywords
voice network
electronic voice
telephone subscription
subscription
telephone
Prior art date
Application number
BE2/59739A
Other languages
English (en)
Inventor
W Stobbs
C Hines
R W Light
Original Assignee
Gte Automatic Electric Lab Inc
Gte Laboratoriesinc
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 Gte Automatic Electric Lab Inc, Gte Laboratoriesinc filed Critical Gte Automatic Electric Lab Inc
Publication of BE893498A publication Critical patent/BE893498A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/76—Compensating for differences in line impedance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/58—Anti-side-tone circuits
    • H04M1/585—Anti-side-tone circuits implemented without inductive element

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)
BE2/59739A 1981-06-15 1982-06-14 Reseau vocal electronique pour un poste d'abonne au telephone BE893498A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/273,700 US4400588A (en) 1981-06-15 1981-06-15 Electronic voice network for a telephone subscriber's substation

Publications (1)

Publication Number Publication Date
BE893498A true BE893498A (fr) 1982-10-01

Family

ID=23045045

Family Applications (1)

Application Number Title Priority Date Filing Date
BE2/59739A BE893498A (fr) 1981-06-15 1982-06-14 Reseau vocal electronique pour un poste d'abonne au telephone

Country Status (6)

Country Link
US (1) US4400588A (fr)
JP (1) JPS57212853A (fr)
AU (1) AU547301B2 (fr)
BE (1) BE893498A (fr)
CA (1) CA1186084A (fr)
IT (1) IT1153526B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8200666A (nl) * 1982-02-19 1983-09-16 Philips Nv Transmissieschakeling voor een elektronisch telefoontoestel.
US4495382A (en) * 1982-04-23 1985-01-22 Fairchild Camera And Instrument Corporation Telephone regulator circuitry
DE3237681C2 (de) * 1982-10-12 1986-03-27 Standard Elektrik Lorenz Ag, 7000 Stuttgart Speiseschaltung für einen veränderlichen Verbraucherwiderstand und mit unterschiedlich wirkendem Ausgangswiderstand
US4550226A (en) * 1983-05-02 1985-10-29 Gte Communication Systems Corporation Subscriber's telephone circuit arranged to present constant impedance to a telephone line
US4633217A (en) * 1984-06-04 1986-12-30 Yamatake Honeywell Communication apparatus
KR0143313B1 (ko) * 1995-07-08 1998-08-01 김광호 키폰시스템에서의 밸런스 네트워크
US6529450B1 (en) * 1998-08-03 2003-03-04 Dictaphone Corporation Hand microphone interfaced to game controller port of personal computer
US6763107B1 (en) * 1999-11-02 2004-07-13 Agere Systems Inc. Method and apparatus for reducing distortion in a line powered modulator circuit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1350205A (en) * 1970-07-24 1974-04-18 Post Office Telephone subscribers instrument circuits
JPS5356903A (en) * 1976-11-02 1978-05-23 Nippon Telegr & Teleph Corp <Ntt> Automatic level control circuit for telephone set
US4332984A (en) * 1979-12-13 1982-06-01 Bell Telephone Laboratories, Incorporated Active speech network circuit for a telephone set

Also Published As

Publication number Publication date
CA1186084A (fr) 1985-04-23
IT1153526B (it) 1987-01-14
US4400588A (en) 1983-08-23
IT8221844A0 (it) 1982-06-14
AU8315882A (en) 1982-12-23
JPS57212853A (en) 1982-12-27
AU547301B2 (en) 1985-10-17

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GTE LABORATORIESINC.

Effective date: 19890630

Owner name: GTE AUTOMATIC ELECTRIC LABORATORIES INC.

Effective date: 19890630