Clock generator and method for generating a clock signal

Details Clock generator and method for generating a clock signal Clock generator and method for generating a clock signal

1997-02-24

1998-06-30

Dinh, Son T.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

327299, 331 74, H03K 1302

Patent

active

057740062

ABSTRACT:
In a clock generator (100), an oscillator (30) supplies an oscillator signal (38) to a first trigger (10) and to a second trigger (20). The triggers change the oscillator signal (38) to a first and a second trigger signal (18, 28). The second trigger (20) has a larger hysteresis range than the first trigger (10), so that the first trigger signal (18) starts toggling before the second trigger signal (28) starts toggling. A detector (40) determines that the second trigger signal (28) toggles at least three times, that means that the oscillator signal (38) goes over the larger hysteresis range in two directions. The detector (40) provides a result to a control circuit (50) which derives a clock signal (98) from the first trigger signal (18).

REFERENCES:
patent: 5469116 (1995-11-01), Slemmer
patent: 5491441 (1996-02-01), Goetschel et al.
patent: 5568078 (1996-10-01), Lee

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