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ES534300A0 - A CIRCUIT OF ADAPTATION OF IMPEDANCES OF A TELEPHONE SUBSCRIBER DEVICE - Google Patents

A CIRCUIT OF ADAPTATION OF IMPEDANCES OF A TELEPHONE SUBSCRIBER DEVICE

Info

Publication number
ES534300A0
ES534300A0 ES534300A ES534300A ES534300A0 ES 534300 A0 ES534300 A0 ES 534300A0 ES 534300 A ES534300 A ES 534300A ES 534300 A ES534300 A ES 534300A ES 534300 A0 ES534300 A0 ES 534300A0
Authority
ES
Spain
Prior art keywords
impedances
adaptation
circuit
subscriber device
telephone subscriber
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.)
Granted
Application number
ES534300A
Other languages
Spanish (es)
Other versions
ES8601608A1 (en
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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
Priority claimed from GB08319222A external-priority patent/GB2154831B/en
Application filed by International Standard Electric Corp filed Critical International Standard Electric Corp
Publication of ES8601608A1 publication Critical patent/ES8601608A1/en
Publication of ES534300A0 publication Critical patent/ES534300A0/en
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H11/00—Networks using active elements
    • H03H11/02—Multiple-port networks
    • H03H11/28—Impedance matching 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)
  • Networks Using Active Elements (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Amplifiers (AREA)
  • Telephone Function (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
ES534300A 1983-07-15 1984-07-13 A CIRCUIT OF ADAPTATION OF IMPEDANCES OF A TELEPHONE SUBSCRIBER DEVICE Granted ES534300A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08319222A GB2154831B (en) 1983-06-29 1983-07-15 Impedance matching circuit

Publications (2)

Publication Number Publication Date
ES8601608A1 ES8601608A1 (en) 1985-10-16
ES534300A0 true ES534300A0 (en) 1985-10-16

Family

ID=10545801

Family Applications (1)

Application Number Title Priority Date Filing Date
ES534300A Granted ES534300A0 (en) 1983-07-15 1984-07-13 A CIRCUIT OF ADAPTATION OF IMPEDANCES OF A TELEPHONE SUBSCRIBER DEVICE

Country Status (7)

Country Link
JP (1) JPS6074732A (en)
KR (1) KR850005046A (en)
AU (1) AU3044284A (en)
ES (1) ES534300A0 (en)
FR (1) FR2549325A1 (en)
GB (1) GB2146505B (en)
IT (1) IT1174568B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6243944A (en) * 1985-08-21 1987-02-25 Toshiba Corp Telephone set circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1233955A (en) * 1967-10-23 1971-06-03
JPS5679551A (en) * 1979-12-04 1981-06-30 Hitachi Ltd Bus line termination system

Also Published As

Publication number Publication date
FR2549325A1 (en) 1985-01-18
IT8421777A0 (en) 1984-07-06
JPS6074732A (en) 1985-04-27
AU3044284A (en) 1985-01-17
GB2146505B (en) 1987-04-15
GB8417828D0 (en) 1984-08-15
IT1174568B (en) 1987-07-01
IT8421777A1 (en) 1986-01-06
ES8601608A1 (en) 1985-10-16
GB2146505A (en) 1985-04-17
KR850005046A (en) 1985-08-19

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