Techniques for measuring voltages in a circuit

Details Techniques for measuring voltages in a circuit Techniques for measuring voltages in a circuit

2011-05-17

2011-05-17

Nguyen, Long (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific signal discriminating without subsequent control

By amplitude

C327S072000, C327S077000, C327S087000

Reexamination Certificate

active

07944248

ABSTRACT:
A circuit can include a comparator, a resistor divider, a control circuit, and a multiplexer. The comparator compares an internal supply voltage of the circuit to a selected reference voltage. The resistor divider generates reference voltages. The control circuit receives an output signal of the comparator and generates a select signal. The multiplexer transmits one of the reference voltages from the resistor divider to the comparator as the selected reference voltage in response to the select signal.

REFERENCES:
patent: 6377083 (2002-04-01), Takabayashi et al.
patent: 7133751 (2006-11-01), Kurd et al.
patent: 7199645 (2007-04-01), Chang et al.
patent: 7276925 (2007-10-01), Dobberpuhl et al.
patent: 2004/0222827 (2004-11-01), Degoirat et al.
patent: 2006/0190746 (2006-08-01), Boerstler et al.
“Written Opinion of the International Searching Authority,” Korean Intellectual Property Office, Nov. 30, 2009, pp. 1-11.
U.S. Appl. No. 11/383,937, filed May 17, 2006, Santurkar et al.

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