Low power, cost effective, temperature compensated, real time cl

Details Low power, cost effective, temperature compensated, real time cl Low power, cost effective, temperature compensated, real time cl

1997-03-20

2000-07-11

Roskoski, Bernard

Horology: time measuring systems or devices

Regulating means

For compensation

368117, G04C 1902

Patent

active

060862440

ABSTRACT:
A temperature compensated clock and method of clocking systems are provided. The clock preferably has an oscillator for generating an oscillating waveform signal at a preselected frequency and a frequency divider responsive to the oscillator for dividing the frequency of the oscillating waveform signal. A temperature monitoring circuit is positioned responsive to a voltage input signal independent of temperature and a voltage input signal proportional to temperature for monitoring temperature variations. A temperature compensating circuit, preferably including a programmable scaling circuit, is responsive to the frequency divider and the temperature monitoring circuit for scaling the divided frequency of the generated waveform and thereby advantageously produces a temperature compensated output timing signal.

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