System reset device having level controller for opportunely sett

Details System reset device having level controller for opportunely sett System reset device having level controller for opportunely sett

1997-06-25

1998-07-28

Wells, Kenneth B.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Synchronizing

327198, H03K 1722

Patent

active

057867178

ABSTRACT:
The present invention is related to a system reset device setting the reset status of a system in response to a reset signal. The system reset device according to the present invention includes a power-stability detecting circuit for detecting the stability of a power signal generated by a power source and provided for the system, an oscillation-stability detecting circuit for detecting the stability of an oscillation signal generated by an oscillator and provided for the system, and a level-control circuit electrically connected to the power-stability detecting circuit and the oscillation-stability detecting circuit for controlling a level state of the rest signal in response to the stability of the power signal and the oscillation signal. The level-control circuit includes an OR gate, an AND gate, and an S-R latch for performing the level state control of the reset signal.

REFERENCES:
patent: 4716322 (1987-12-01), D'Arrigo et al.
patent: 5629642 (1997-05-01), Yoshimura

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