Communication system power loss notification via detection...

Details Communication system power loss notification via detection... Communication system power loss notification via detection...

2005-05-17

2005-05-17

Perveen, Rehana (Department: 2116)

Electrical computers and digital processing systems: support

Computer power control

Having power source monitoring

C713S300000

Reexamination Certificate

active

06895521

ABSTRACT:
In one aspect of the invention, a method for power loss notification includes receiving at least a threshold voltage from a power supply. The method also includes charging at least one capacitor when the power supply is supplying at least the threshold voltage. The method further includes failing to receive at least the threshold voltage from the power supply, and reverse biasing at least one diode coupled between the power supply and the at least one capacitor. In addition, the method includes detecting the reverse bias state of the diode.

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patent: 6476651 (2002-11-01), Watanabe
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