NL187376C - Telefoonspraaknetwerk. - Google Patents

Telefoonspraaknetwerk.

Info

Publication number
NL187376C
NL187376C NLAANVRAGE7713652,A NL7713652A NL187376C NL 187376 C NL187376 C NL 187376C NL 7713652 A NL7713652 A NL 7713652A NL 187376 C NL187376 C NL 187376C
Authority
NL
Netherlands
Prior art keywords
voice network
telephone voice
telephone
network
voice
Prior art date
Application number
NLAANVRAGE7713652,A
Other languages
English (en)
Dutch (nl)
Other versions
NL7713652A (nl
Original Assignee
Northern Telecom 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 Northern Telecom Ltd filed Critical Northern Telecom Ltd
Publication of NL7713652A publication Critical patent/NL7713652A/xx
Application granted granted Critical
Publication of NL187376C publication Critical patent/NL187376C/xx

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)
  • Telephone Function (AREA)
  • Devices For Supply Of Signal Current (AREA)
NLAANVRAGE7713652,A 1976-12-27 1977-12-09 Telefoonspraaknetwerk. NL187376C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/754,430 US4071713A (en) 1976-12-27 1976-12-27 Telephone speech network

Publications (2)

Publication Number Publication Date
NL7713652A NL7713652A (nl) 1978-06-29
NL187376C true NL187376C (nl) 1991-09-02

Family

ID=25034762

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7713652,A NL187376C (nl) 1976-12-27 1977-12-09 Telefoonspraaknetwerk.

Country Status (12)

Country Link
US (1) US4071713A (da)
JP (1) JPS5382203A (da)
BE (1) BE862118A (da)
DE (1) DE2757100C2 (da)
DK (1) DK577877A (da)
ES (1) ES465474A1 (da)
FI (1) FI773859A (da)
FR (1) FR2375772A1 (da)
GB (1) GB1576898A (da)
NL (1) NL187376C (da)
NO (1) NO774415L (da)
SE (1) SE414260B (da)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1546046A (en) * 1976-12-03 1979-05-16 Cselt Centro Studi Lab Telecom Transmitting and receiving circuit for subscriber telephone sets
CA1056970A (en) * 1977-01-10 1979-06-19 Northern Telecom Limited Electronic network for telephone set
DE2807304C2 (de) * 1978-02-21 1982-07-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltungsanordnung zum Verstärken eines in einer aus einer Teilnehmeranschlußleitung gespeisten Endstelle einer Fernmeldeanlage erzeugten Signals
JPS5831122B2 (ja) * 1979-01-19 1983-07-04 仁 伊藤 混合回路
US4303805A (en) * 1979-05-21 1981-12-01 United Networks, Inc. Subscriber station network
US4400589A (en) * 1979-05-21 1983-08-23 United Networks, Inc. Subscriber station network
US4354060A (en) * 1979-07-26 1982-10-12 Stromberg-Carlson Corporation Electronic telephone
JPS5660151A (en) * 1979-10-22 1981-05-23 Fujitsu Ltd Level-compensating type handset unit
DE2946306C2 (de) * 1979-11-16 1987-02-26 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Verstärkerschaltung mit vorgebbarem Wechselstrominnenwiderstand
US4332984A (en) * 1979-12-13 1982-06-01 Bell Telephone Laboratories, Incorporated Active speech network circuit for a telephone set
JPS6041909B2 (ja) * 1980-03-26 1985-09-19 日本電気株式会社 電話機通話回路網
DE3116262A1 (de) * 1981-04-24 1982-11-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "schaltungsanordnung zur erzeugung von steuergroessen aus dem schleifenstrom"
IT1218851B (it) * 1984-10-31 1990-04-24 Ates Componenti Elettron Circuito integrato per la trasmissione di segnali di tipo telefonico, con limitazione d'ampiezza dei picchi negativi delle forme d'onda dei segnali trasmessi
JPS6243944A (ja) * 1985-08-21 1987-02-25 Toshiba Corp 電話機回路
DE10051306A1 (de) * 2000-10-17 2002-04-18 Bosch Gmbh Robert Spielfreies Lenkgetriebe
US10128893B2 (en) 2008-07-09 2018-11-13 Secureall Corporation Method and system for planar, multi-function, multi-power sourced, long battery life radio communication appliance
JP2011527873A (ja) * 2008-07-09 2011-11-04 セキュアオール コーポレイション 低電力無線通信システム
US11469789B2 (en) 2008-07-09 2022-10-11 Secureall Corporation Methods and systems for comprehensive security-lockdown
US10447334B2 (en) 2008-07-09 2019-10-15 Secureall Corporation Methods and systems for comprehensive security-lockdown

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3462560A (en) * 1966-04-06 1969-08-19 Bell Telephone Labor Inc Subscriber telephone circuit with resistance hybrid sidetone balancing network
US3440367A (en) * 1966-05-06 1969-04-22 Bell Telephone Labor Inc Nonreactive antisidetone network for a telephone set
US3762867A (en) * 1967-11-17 1973-10-02 Mohasco Ind Inc Textile printing method
US3955053A (en) * 1971-09-30 1976-05-04 Siemens Aktiengesellschaft Integrated circuit arrangement for a telephone subscriber station
BE789514A (fr) * 1971-09-30 1973-03-29 Siemens Ag Circuit monolithique integrable pour branchement telephonique de postesd'abonne a alimentation centrale
BE792329A (fr) * 1971-12-09 1973-06-06 Int Standard Electric Corp Circuit de transmission electronique pour poste telephonique
CA1031882A (en) * 1976-01-12 1978-05-23 Mevhibe G. Sencer Telephone speech network for electronic sidetone suppression

Also Published As

Publication number Publication date
ES465474A1 (es) 1978-09-16
FR2375772B1 (da) 1983-01-28
DE2757100C2 (de) 1985-04-04
NL7713652A (nl) 1978-06-29
GB1576898A (en) 1980-10-15
NO774415L (no) 1978-06-28
FR2375772A1 (fr) 1978-07-21
JPS6145424B2 (da) 1986-10-08
JPS5382203A (en) 1978-07-20
FI773859A (fi) 1978-06-28
BE862118A (fr) 1978-06-21
DK577877A (da) 1978-06-28
SE7714747L (sv) 1978-06-28
SE414260B (sv) 1980-07-14
DE2757100A1 (de) 1978-07-06
US4071713A (en) 1978-01-31

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
A85 Still pending on 85-01-01
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee