Timed chime system

Details Timed chime system Timed chime system

1978-12-04

1981-05-26

Weldon, Ulysses

Horology: time measuring systems or devices

Signalling means

Time condition responsive

368243, 368267, 368250, G04C 2116

Patent

active

042702003

ABSTRACT:
A timed chime system wherein the minute timer of a clock mechanism generates a start chime signal every half hour. The start chime signal is applied to turn on a power switch to apply power to the elements of the chime system and to set system components to begin a chime cycle. In response to the start chime signal, the hour timer of the clock mechanism operates a coder to generate a BCD count signal corresponding to the position of the hour hand of the clock. The BCD count signal is then applied to set a particular hour count in a programmable counter and a chime tone circuit is activated to generate a number of Bim-Bam audio tones. As each Bim-Bam audio tone is generated, the programmable counter is decremented by one and, when the counter is decremented to zero, the chime system is reset. After a particular time delay, the power switch is operated to turn off system power.

REFERENCES:
patent: 3775967 (1973-12-01), Spadini
patent: 4040248 (1977-08-01), Laesser

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