JPS53911A - Speech current disconnection circuit - Google Patents

Speech current disconnection circuit

Info

Publication number
JPS53911A
JPS53911A JP7443876A JP7443876A JPS53911A JP S53911 A JPS53911 A JP S53911A JP 7443876 A JP7443876 A JP 7443876A JP 7443876 A JP7443876 A JP 7443876A JP S53911 A JPS53911 A JP S53911A
Authority
JP
Japan
Prior art keywords
disconnection circuit
speech current
current disconnection
speech
circuit
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.)
Pending
Application number
JP7443876A
Other languages
Japanese (ja)
Inventor
Kimifumi Kojima
Michio Tokunaga
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7443876A priority Critical patent/JPS53911A/en
Publication of JPS53911A publication Critical patent/JPS53911A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
    • H04Q3/52—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements
    • H04Q3/521—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker using static devices in switching stages, e.g. electronic switching arrangements using semiconductors in the switching stages

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To obtain a more economical circuit as compared with relays by disconnectiong speech current to thereby open the speech path by the use of a shorting semiconductor switching device.
JP7443876A 1976-06-25 1976-06-25 Speech current disconnection circuit Pending JPS53911A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7443876A JPS53911A (en) 1976-06-25 1976-06-25 Speech current disconnection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7443876A JPS53911A (en) 1976-06-25 1976-06-25 Speech current disconnection circuit

Publications (1)

Publication Number Publication Date
JPS53911A true JPS53911A (en) 1978-01-07

Family

ID=13547222

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7443876A Pending JPS53911A (en) 1976-06-25 1976-06-25 Speech current disconnection circuit

Country Status (1)

Country Link
JP (1) JPS53911A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03163407A (en) * 1990-07-03 1991-07-15 Minolta Camera Co Ltd Focus detector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03163407A (en) * 1990-07-03 1991-07-15 Minolta Camera Co Ltd Focus detector

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