Timer circuit with programmable decode circuitry

Details Timer circuit with programmable decode circuitry Timer circuit with programmable decode circuitry

1997-12-11

1999-05-04

Wambach, Margaret R.

Electrical pulse counters, pulse dividers, or shift registers: c

Applications

Measuring or testing

36518519, 36518503, 327172, 327173, 327174, 327175, 327294, G11C 1134

Patent

active

059011947

ABSTRACT:
A timer circuit for providing output pulses of an adjustable duration based upon stored decode parameters. The circuit has a timer element which generates a periodic timing signal. Preferably the frequency of the periodic timing signal is also adjustable. A frequency divider is clocked by the timing signal and provides a plurality of frequency divided outputs. A decode circuit combines selected ones of the frequency divided outputs based upon decode parameters and generates a timer circuit output pulse having a duration determined by the frequency divided outputs selected by the decode parameters. The decode parameters are stored in a non-volatile data storage unit so that the timer output pulse will remain the same after power interruption.

REFERENCES:
patent: 5003194 (1991-03-01), Englehard
patent: 5477179 (1995-12-01), Takada et al.
patent: 5600593 (1997-02-01), Fong

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