Title:
INDICATION CIRCUIT FOR SUM OF MONEY PUT INTO A PAY PHONE
Document Type and Number:
Japanese Patent JPS51150905
Kind Code:
A
Abstract:
PURPOSE: To indicate the sum of money applied to a pay phone and the balance of the money received by the phone by employing an electronic circuit of which up-down counter performs count operation properly even when input signals are generated simultaneously by the application and reception of money.
Inventors:
OGAWA TOSHIYUKI
HOSHI KEIKOU
HOSHI KEIKOU
Application Number:
JP7433475A
Publication Date:
December 24, 1976
Filing Date:
June 20, 1975
Export Citation:
Assignee:
TAMURA ELECTRIC WORKS LTD
International Classes:
H04M17/02; H04M17/00; (IPC1-7): H04M17/00