JPS556936A - Coin supervisory system - Google Patents

Coin supervisory system

Info

Publication number
JPS556936A
JPS556936A JP7929678A JP7929678A JPS556936A JP S556936 A JPS556936 A JP S556936A JP 7929678 A JP7929678 A JP 7929678A JP 7929678 A JP7929678 A JP 7929678A JP S556936 A JPS556936 A JP S556936A
Authority
JP
Japan
Prior art keywords
dial
switched
turned
coins
scr
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
JP7929678A
Other languages
Japanese (ja)
Other versions
JPS5746708B2 (en
Inventor
Takashi Oyamada
Shuji Kunii
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 JP7929678A priority Critical patent/JPS556936A/en
Publication of JPS556936A publication Critical patent/JPS556936A/en
Publication of JPS5746708B2 publication Critical patent/JPS5746708B2/ja
Granted 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)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Prepayment Telephone Systems (AREA)

Abstract

PURPOSE:To detect the presence or absence of the coins at both the dial turning time and the dial releasing time via the dial turn detection circuit and the dial transmission detection circuit. CONSTITUTION:When the dial is turned, short contact DS is switched on to give flashing to luminous element EL1. Thus photo detector PT2 is switched off, and voltage Vpt2 turns to the H level. This change is differentiated by capacitor C6 and resistance R13, and the light emission is given to EL1 via transistor Tr6. If the coin exists at the side of element EL1, FF2 is not set. Accordingly, SCR is off to enable the dial transmission. Impulse contact Di is switched off while the dial is being turned, and capacitor C5 is switched on via Zener diode ZD2 and inventer IN1. Thus, EL1 is made to emit the light to detect the presence of the coins. If no coin exists there, SCR is turned on to block the dial transmission.
JP7929678A 1978-06-30 1978-06-30 Coin supervisory system Granted JPS556936A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7929678A JPS556936A (en) 1978-06-30 1978-06-30 Coin supervisory system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7929678A JPS556936A (en) 1978-06-30 1978-06-30 Coin supervisory system

Publications (2)

Publication Number Publication Date
JPS556936A true JPS556936A (en) 1980-01-18
JPS5746708B2 JPS5746708B2 (en) 1982-10-05

Family

ID=13685877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7929678A Granted JPS556936A (en) 1978-06-30 1978-06-30 Coin supervisory system

Country Status (1)

Country Link
JP (1) JPS556936A (en)

Also Published As

Publication number Publication date
JPS5746708B2 (en) 1982-10-05

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