JPS556933A - Dial turning detection system - Google Patents

Dial turning detection system

Info

Publication number
JPS556933A
JPS556933A JP7929378A JP7929378A JPS556933A JP S556933 A JPS556933 A JP S556933A JP 7929378 A JP7929378 A JP 7929378A JP 7929378 A JP7929378 A JP 7929378A JP S556933 A JPS556933 A JP S556933A
Authority
JP
Japan
Prior art keywords
dial
luminous element
photo detector
short contact
turning
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
JP7929378A
Other languages
Japanese (ja)
Other versions
JPS5816829B2 (en
Inventor
Akio Hikone
Kunihiko Kaneda
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.)
Tamura Electric Works Ltd
Original Assignee
Tamura Electric Works 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 Tamura Electric Works Ltd filed Critical Tamura Electric Works Ltd
Priority to JP7929378A priority Critical patent/JPS5816829B2/en
Publication of JPS556933A publication Critical patent/JPS556933A/en
Publication of JPS5816829B2 publication Critical patent/JPS5816829B2/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Signal Processing (AREA)
  • Prepayment Telephone Systems (AREA)

Abstract

PURPOSE:To detect the dial turning by the output of the photo detector by inserting the luminous element of the coin detector comprising the luminous element and the photo detector in parallel to the dial short contact. CONSTITUTION:Luminous element EL2 inserted in parallel to dial short contact DS has light emission with ON of hook switch HS and then detected by photo detector PT2. When DS is turned on by the dial turning, the light emission of EL2 is put out. And voltage Vpt2 features the high potential (H) to secure detection of the dial turning. In case the coins stop due to the wrong throw-in of the coins or other factors, NAND1 and FF1 are operated by the H of the pulse output of initial reset circuit IRS as well as the H of Vpt2 to short contact Di. Thus, the dial transmission is made impossible.
JP7929378A 1978-06-30 1978-06-30 Dial rotation detection method Expired JPS5816829B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7929378A JPS5816829B2 (en) 1978-06-30 1978-06-30 Dial rotation detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7929378A JPS5816829B2 (en) 1978-06-30 1978-06-30 Dial rotation detection method

Publications (2)

Publication Number Publication Date
JPS556933A true JPS556933A (en) 1980-01-18
JPS5816829B2 JPS5816829B2 (en) 1983-04-02

Family

ID=13685794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7929378A Expired JPS5816829B2 (en) 1978-06-30 1978-06-30 Dial rotation detection method

Country Status (1)

Country Link
JP (1) JPS5816829B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055859A (en) * 1983-09-02 1985-04-01 Canon Inc High voltage transformer
JPS6363095U (en) * 1986-10-07 1988-04-26

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6055859A (en) * 1983-09-02 1985-04-01 Canon Inc High voltage transformer
JPH078139B2 (en) * 1983-09-02 1995-01-30 キヤノン株式会社 High voltage power supply
JPS6363095U (en) * 1986-10-07 1988-04-26

Also Published As

Publication number Publication date
JPS5816829B2 (en) 1983-04-02

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