GB810168A - Electrical identification circuit - Google Patents

Electrical identification circuit

Info

Publication number
GB810168A
GB810168A GB3565/57A GB356557A GB810168A GB 810168 A GB810168 A GB 810168A GB 3565/57 A GB3565/57 A GB 3565/57A GB 356557 A GB356557 A GB 356557A GB 810168 A GB810168 A GB 810168A
Authority
GB
United Kingdom
Prior art keywords
points
network
bun
coding
admittance
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
GB3565/57A
Other languages
English (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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 GB1849153A external-priority patent/GB763829A/en
Application filed by Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB810168A publication Critical patent/GB810168A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M15/00—Arrangements for metering, time-control or time indication ; Metering, charging or billing arrangements for voice wireline or wireless communications, e.g. VoIP
    • H04M15/08—Metering calls to called party, i.e. B-party charged for the communication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
    • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
    • H04Q3/625—Arrangements in the private branch exchange

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Devices For Supply Of Signal Current (AREA)
  • Selective Calling Equipment (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
GB3565/57A 1953-07-03 1957-02-01 Electrical identification circuit Expired GB810168A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB1849153A GB763829A (en) 1953-07-03 1953-07-03 Improvements in or relating to line identification in telecommunication systems
BE545100 1956-02-10
DEST10935A DE1041097B (de) 1953-07-03 1956-03-06 Schaltungsanordnung fuer Anrufsucher in Fernmelde-, insbesondere Fernsprechanlagen

Publications (1)

Publication Number Publication Date
GB810168A true GB810168A (en) 1959-03-11

Family

ID=27158846

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3565/57A Expired GB810168A (en) 1953-07-03 1957-02-01 Electrical identification circuit

Country Status (6)

Country Link
US (3) US2913530A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (2) BE555540A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE1041097B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (3) FR1108791A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB810168A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (2) NL102419C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1158587B (de) * 1961-07-20 1963-12-05 Telefunken Patent Schaltungsanordnung zur Anzeige und Kennzeichnung (Identifizierung) anrufender Leitungen in Fernsprechvermittlungsanlagen
US3522385A (en) * 1966-09-22 1970-07-28 Itt Calling subscriber identification circuit
CN109709150B (zh) * 2018-12-25 2020-06-02 华中科技大学 基于压电阻抗信息的叠层橡胶隔震支座损伤识别方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152889A (en) * 1935-05-31 1939-04-04 Panstwowe Zaklady Tele I Radjo Telephone system
BE477655A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1941-08-15
BE473095A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1946-05-17
US2580093A (en) * 1947-12-16 1951-12-25 Bell Telephone Labor Inc Call data recording telephone system
BE493314A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1949-01-17
BE499901A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1949-12-30
BE500623A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1950-01-16
BE512622A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1951-07-05
US2739187A (en) * 1953-01-06 1956-03-20 Bell Telephone Labor Inc Station number identifier

Also Published As

Publication number Publication date
BE555540A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL107045C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US2913530A (en) 1959-11-17
FR1108791A (fr) 1956-01-17
US2989593A (en) 1961-06-20
BE545100A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE1041097B (de) 1958-10-16
FR71813E (fr) 1960-02-01
NL102419C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR71644E (fr) 1960-01-13
US2954439A (en) 1960-09-27

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