Voltage-glitch detection device and method for securing...

Details Voltage-glitch detection device and method for securing... Voltage-glitch detection device and method for securing...

2006-08-01

2006-08-01

Ton, David (Department: 2138)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital logic testing

C714S733000

Reexamination Certificate

active

07085979

ABSTRACT:
A voltage-glitch detection circuit includes a voltage comparator having two input terminals with different capacitance resistance charge/discharge time. Voltage dividers are coupled to the two input terminals of the voltage comparator respectively, and commonly receive a supply voltage. One of the voltage dividers is supplied to the voltage comparator as a reference voltage of the voltage comparator, and the other is supplied as a glitch detection voltage to the voltage comparator.

REFERENCES:
patent: 4285051 (1981-08-01), Henneuse
patent: 4968901 (1990-11-01), Shacter
patent: 5136186 (1992-08-01), Trinh et al.
patent: 5666078 (1997-09-01), Lamphier et al.
patent: 6025981 (2000-02-01), Wu
patent: 6085342 (2000-07-01), Marholev et al.
patent: 6751079 (2004-06-01), Bretschneider
patent: WO 00/72252 (2000-11-01), None

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