SE439087B - Telefonapparat innefattande en forsterkaranordning med fjerreffektmatning - Google Patents

Telefonapparat innefattande en forsterkaranordning med fjerreffektmatning

Info

Publication number
SE439087B
SE439087B SE7214884A SE1488472A SE439087B SE 439087 B SE439087 B SE 439087B SE 7214884 A SE7214884 A SE 7214884A SE 1488472 A SE1488472 A SE 1488472A SE 439087 B SE439087 B SE 439087B
Authority
SE
Sweden
Prior art keywords
amplifier
power supply
device including
telephone device
remote power
Prior art date
Application number
SE7214884A
Other languages
English (en)
Swedish (sv)
Inventor
Der Plaats P J Van
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of SE439087B publication Critical patent/SE439087B/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
    • H04B3/04—Control of transmission; Equalising
    • 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)
  • Computer Networks & Wireless Communication (AREA)
  • Amplifiers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Interface Circuits In Exchanges (AREA)
SE7214884A 1971-11-19 1972-11-16 Telefonapparat innefattande en forsterkaranordning med fjerreffektmatning SE439087B (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7115947A NL7115947A (xx) 1971-11-19 1971-11-19

Publications (1)

Publication Number Publication Date
SE439087B true SE439087B (sv) 1985-05-28

Family

ID=19814515

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7214884A SE439087B (sv) 1971-11-19 1972-11-16 Telefonapparat innefattande en forsterkaranordning med fjerreffektmatning

Country Status (8)

Country Link
US (1) US3810032A (xx)
JP (1) JPS5212042B2 (xx)
BE (1) BE791588A (xx)
CA (1) CA973939A (xx)
FR (1) FR2161662A5 (xx)
GB (1) GB1395204A (xx)
NL (1) NL7115947A (xx)
SE (1) SE439087B (xx)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406663A (en) * 1972-08-22 1975-09-17 Standard Telephones Cables Ltd Telphone subset circuits
GB1546046A (en) * 1976-12-03 1979-05-16 Cselt Centro Studi Lab Telecom Transmitting and receiving circuit for subscriber telephone sets
FR2478412A1 (fr) * 1980-03-14 1981-09-18 Radiotechnique Compelec Procede pour adapter automatiquement des circuits electroniques de postes telephoniques a la resistance de la ligne, et poste comportant des circuits auto-adaptes
DE3116262A1 (de) * 1981-04-24 1982-11-11 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt "schaltungsanordnung zur erzeugung von steuergroessen aus dem schleifenstrom"
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
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
FR2538648A1 (fr) * 1982-12-28 1984-06-29 Thomson Csf Circuit de suppression de signal de microphone pour poste telephonique
FR2634605B1 (fr) * 1988-07-22 1990-10-05 Radiotechnique Compelec Circuit de compensation de courant
JP4057212B2 (ja) * 2000-02-15 2008-03-05 三菱電機株式会社 マイクロフォン装置
FR2946213B1 (fr) * 2009-05-29 2012-05-11 Sagem Comm Procede de correction de la degradation du signal telephonique entrainee par la longueur de ligne analogique par le combine
CA2785246C (en) 2009-12-22 2014-10-21 Cook Medical Technologies Llc Medical devices with detachable pivotable jaws
CN103228223B (zh) 2010-10-11 2016-07-06 库克医学技术有限责任公司 具有可脱离可枢转钳口的医疗设备
CN103260531B (zh) 2010-10-11 2016-04-27 库克医学技术有限责任公司 具有可拆卸可枢转夹爪的医疗装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491307A (en) * 1967-06-22 1970-01-20 Motorola Inc Differential amplifier featuring pole splitting compensation and common mode feedback
US3731215A (en) * 1971-08-06 1973-05-01 Gen Electric Amplifier of controllable gain

Also Published As

Publication number Publication date
DE2254148B2 (de) 1976-07-29
AU4894572A (en) 1974-05-16
DE2254148A1 (de) 1973-05-24
NL7115947A (xx) 1973-05-22
CA973939A (en) 1975-09-02
JPS5212042B2 (xx) 1977-04-04
BE791588A (fr) 1973-05-17
FR2161662A5 (xx) 1973-07-06
JPS4863604A (xx) 1973-09-04
GB1395204A (en) 1975-05-21
US3810032A (en) 1974-05-07

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