JPS5337307A - Transmission system for charging signal - Google Patents

Transmission system for charging signal

Info

Publication number
JPS5337307A
JPS5337307A JP11184776A JP11184776A JPS5337307A JP S5337307 A JPS5337307 A JP S5337307A JP 11184776 A JP11184776 A JP 11184776A JP 11184776 A JP11184776 A JP 11184776A JP S5337307 A JPS5337307 A JP S5337307A
Authority
JP
Japan
Prior art keywords
charging signal
transmission system
communicating
current
inversion
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
JP11184776A
Other languages
Japanese (ja)
Inventor
Shige Miyoshi
Takuji Mukaemachi
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 JP11184776A priority Critical patent/JPS5337307A/en
Publication of JPS5337307A publication Critical patent/JPS5337307A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M17/00—Prepayment of wireline communication systems, wireless communication systems or telephone systems
    • H04M17/02—Coin-freed or check-freed systems, e.g. mobile- or card-operated phones, public telephones or booths
    • H04M17/023—Circuit arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Meter Arrangements (AREA)
  • Interface Circuits In Exchanges (AREA)

Abstract

PURPOSE:To send the charging signal thru the interrupt of communicating current and the inversion of direction, by providing a bidirectional AC high impedance DC current feed circuit between the communicating line and cell and ground.
JP11184776A 1976-09-20 1976-09-20 Transmission system for charging signal Pending JPS5337307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11184776A JPS5337307A (en) 1976-09-20 1976-09-20 Transmission system for charging signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11184776A JPS5337307A (en) 1976-09-20 1976-09-20 Transmission system for charging signal

Publications (1)

Publication Number Publication Date
JPS5337307A true JPS5337307A (en) 1978-04-06

Family

ID=14571649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11184776A Pending JPS5337307A (en) 1976-09-20 1976-09-20 Transmission system for charging signal

Country Status (1)

Country Link
JP (1) JPS5337307A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875363A (en) * 1981-10-29 1983-05-07 Oki Electric Ind Co Ltd Transmitting circuit of public charging pulse
JPS5972288A (en) * 1982-10-08 1984-04-24 Fujitsu Ltd Reverse control circuit
JPS63146553A (en) * 1986-12-09 1988-06-18 Nec Corp Polarity inverting circuit
US5031208A (en) * 1987-12-18 1991-07-09 Canon Kabushiki Kaisha Data communication system and apparatus for transmitting data on a line and interrupting data transmission when an accounting pulse is detected on the line

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5084117A (en) * 1973-11-26 1975-07-07
JPS5132112A (en) * 1974-09-12 1976-03-18 Oki Electric Ind Co Ltd KANYUSHAKAIRO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5084117A (en) * 1973-11-26 1975-07-07
JPS5132112A (en) * 1974-09-12 1976-03-18 Oki Electric Ind Co Ltd KANYUSHAKAIRO

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5875363A (en) * 1981-10-29 1983-05-07 Oki Electric Ind Co Ltd Transmitting circuit of public charging pulse
JPH0218631B2 (en) * 1981-10-29 1990-04-26 Oki Denki Kogyo Kk
JPS5972288A (en) * 1982-10-08 1984-04-24 Fujitsu Ltd Reverse control circuit
JPS63146553A (en) * 1986-12-09 1988-06-18 Nec Corp Polarity inverting circuit
US5031208A (en) * 1987-12-18 1991-07-09 Canon Kabushiki Kaisha Data communication system and apparatus for transmitting data on a line and interrupting data transmission when an accounting pulse is detected on the line

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