Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Clock or pulse waveform generating
Reexamination Certificate
2006-02-28
2006-02-28
Nguyen, Linh My (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Clock or pulse waveform generating
C327S298000
Reexamination Certificate
active
07005905
ABSTRACT:
A circuit capable of providing stable timing clock includes: a step-down clamping circuit, an oscillating circuit, and a voltage potential-conversing circuit. The step-down clamping circuit that step down the input first voltage potential, and clamp to output second voltage, the oscillating circuit is coupled to the clamping circuit and is an oscillating circuit that takes the second voltage as a operating voltage to generate a first timing clock signal, which has a lower voltage potential. The voltage potential-conversing circuit is coupled to the oscillating circuit to convert the first timing clock signal into a second timing clock signal, which has a higher voltage potential. And it is a stable timing clock signal available for other system circuit.
REFERENCES:
patent: 4428040 (1984-01-01), Yamashiro et al.
patent: 6044003 (2000-03-01), Toshinari et al.
patent: 6646426 (2003-11-01), Terashi
Chen Chi-Bing
Hsu Chi-Ho
Hsu Chia-Lu
Lin Hsan-Fong
Holtek Semiconductor Inc.
Nguyen Linh My
Troxell Law Office PLLC
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