DE2952353C2 - - Google Patents

Info

Publication number
DE2952353C2
DE2952353C2 DE2952353A DE2952353A DE2952353C2 DE 2952353 C2 DE2952353 C2 DE 2952353C2 DE 2952353 A DE2952353 A DE 2952353A DE 2952353 A DE2952353 A DE 2952353A DE 2952353 C2 DE2952353 C2 DE 2952353C2
Authority
DE
Germany
Prior art keywords
line
circuit
wire
impedance
current supply
Prior art date
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
DE2952353A
Other languages
German (de)
English (en)
Other versions
DE2952353A1 (de
Inventor
John Spencer Nether Heyford Northampton Gb Arnold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Plessey Overseas Ltd
Original Assignee
Plessey Overseas 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 Plessey Overseas Ltd filed Critical Plessey Overseas Ltd
Publication of DE2952353A1 publication Critical patent/DE2952353A1/de
Application granted granted Critical
Publication of DE2952353C2 publication Critical patent/DE2952353C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/58—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa
    • H04B1/581—Hybrid arrangements, i.e. arrangements for transition from single-path two-direction transmission to single-direction transmission on each of two paths or vice versa using a transformer

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Telephonic Communication Services (AREA)
DE19792952353 1978-12-30 1979-12-24 Zweidraht-vierdraht-fernmeldeleitungsschaltung Granted DE2952353A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7850385A GB2041700B (en) 1978-12-30 1978-12-30 Balance on 2-4 wire hybrid circuits

Publications (2)

Publication Number Publication Date
DE2952353A1 DE2952353A1 (de) 1980-07-10
DE2952353C2 true DE2952353C2 (https=) 1988-01-21

Family

ID=10502017

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19792952353 Granted DE2952353A1 (de) 1978-12-30 1979-12-24 Zweidraht-vierdraht-fernmeldeleitungsschaltung

Country Status (12)

Country Link
US (1) US4289939A (https=)
JP (1) JPS5593331A (https=)
BR (1) BR7907893A (https=)
CA (1) CA1131821A (https=)
DE (1) DE2952353A1 (https=)
FR (1) FR2445673A1 (https=)
GB (1) GB2041700B (https=)
IE (1) IE48923B1 (https=)
NL (1) NL7909147A (https=)
NZ (1) NZ192463A (https=)
SE (1) SE437099B (https=)
ZA (1) ZA796286B (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4577255A (en) * 1984-06-20 1986-03-18 Itt Corporation Lightning protection circuit for digital subscriber loop interface
US4757528A (en) * 1986-09-05 1988-07-12 Harris Corporation Thermally coupled information transmission across electrical isolation boundaries
USD776637S1 (en) * 2014-09-22 2017-01-17 Ching-Wen Chen Earhook microphone
USD843347S1 (en) 2016-10-18 2019-03-19 Samson Technologies Corp. Head-worn microphone
WO2020016960A1 (ja) 2018-07-18 2020-01-23 三菱電機株式会社 高調波電流補償装置および空気調和システム

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1126941B (de) * 1960-09-30 1962-04-05 Siemens Ag Schaltungsanordnung zum Ausregeln des Daempfungsunterschiedes verschieden langer Fernmeldeleitungen
NL269763A (https=) * 1960-09-30
US4132863A (en) * 1977-12-20 1979-01-02 Bell Telephone Laboratories, Incorporated Automatic gain and return loss compensating line circuit

Also Published As

Publication number Publication date
BR7907893A (pt) 1980-07-29
GB2041700B (en) 1982-12-08
SE7910671L (sv) 1980-07-01
NL7909147A (nl) 1980-07-02
US4289939A (en) 1981-09-15
NZ192463A (en) 1982-05-25
ZA796286B (en) 1980-11-26
CA1131821A (en) 1982-09-14
IE792529L (en) 1980-06-30
FR2445673A1 (fr) 1980-07-25
DE2952353A1 (de) 1980-07-10
SE437099B (sv) 1985-02-04
JPS6237852B2 (https=) 1987-08-14
JPS5593331A (en) 1980-07-15
IE48923B1 (en) 1985-06-12
GB2041700A (en) 1980-09-10

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: PLESSEY OVERSEAS LTD., ILFORD, ESSEX, GB

8128 New person/name/address of the agent

Representative=s name: PRINZ, E., DIPL.-ING. HAUSER, G., DIPL.-CHEM. DR.R

8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: PRINZ, E., DIPL.-ING. LEISER, G., DIPL.-ING., PAT.

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee