05737401 is referenced by 1 patents and cites 8 patents.

A coin box monitoring circuit for use in pay telephones, providing coin detection, coin volume totalization, and full coin box signaling to the telephone central office. An included coin chute assembly has three channels that cause nickels, dimes, and quarters to pass through specific locations within each channel. Light sources and light detectors detect the passage of coins. A microprocessor is utilized to control the light sources, monitor the detectors, and volumetrically count the coins passing through the coin chute. On reaching a full condition, a microprocessor then controls a relay to signal that the predetermined coin box level has been reached.

Title
Full coin box signalling device for use with coin telephones
Application Number
8/662242
Publication Number
5737401
Application Date
June 14, 1996
Publication Date
April 7, 1998
Inventor
Gregory L Distler
Huntsville
AL, US
Gary Grantland
Hartselle
AL, US
Agent
Robert J Black
Assignee
Quadrum Telecommunications
AL, US
IPC
G07D 5/08
G07F 9/08
G06M 1/27
H04M 17/00
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