Power-on reset circuits including first and second signal...

Details Power-on reset circuits including first and second signal... Power-on reset circuits including first and second signal...

2005-07-05

2005-07-05

Callahan, Timothy P. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

C327S198000

Reexamination Certificate

active

06914461

ABSTRACT:
A power-on reset circuit which outputs a power-on reset signal through an output node includes a first signal generator that generates a first signal voltage. The first signal voltage increases from a ground voltage when a power supply voltage reaches a first threshold voltage. A second signal generator generates a second signal voltage, and the second signal voltage decreases from the power supply voltage when the power supply voltage reaches a second threshold voltage. A comparator activates the power-on reset signal responsive to a comparison of the first and second signals.

REFERENCES:
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patent: 11-031956 (1999-02-01), None
patent: 1999-0009451 (1999-02-01), None
Notice to File Response for corresponding Korean Application No. 2002-49136 dated Jul. 31, 2004 (English Translation).

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