Title:
【発明の名称】コイン作動電話器用低電力制御装置
Document Type and Number:
Japanese Patent JP2911933
Kind Code:
B2
Abstract:
A low power control apparatus for a coin operated telephone controls a full range of phonefunctions as well as an electronic coin acceptor. The control utilizes phone line power. Power for all the normal operations of the coin operated telephone and its coin acceptor (30) is also supplied from the phone line. The control is preferably microcontroller based and designed utilizing low power components. In the control, an interface circuit (55) serves to connect the phone tip and ring lines to either a power supply circuit (230) or to a totalizer (350) and escrow control circuit. The power supply also provides power to an audio network (380) including a variety of fraud prevention circuits, a modem (400), and several time generator circuits. A monitor system (510) monitors the status of several security switches to monitor the phone's condition. Hardware and software design features control the application of power to circuits only when needed.
Inventors:
REGAA FUIRITSUPU REEN
MAKUGARII PATORITSUKU JEE
RUISU KURETSUGU ASHUREI
MAKUGARII PATORITSUKU JEE
RUISU KURETSUGU ASHUREI
Application Number:
JP50649189A
Publication Date:
June 28, 1999
Filing Date:
May 24, 1989
Export Citation:
Assignee:
MAAZU INC
International Classes:
H04M17/00; H04M17/02; H04M19/08; (IPC1-7): H04M17/00; H04M19/08
Attorney, Agent or Firm:
Masao Okabe (5 others)