Integrated circuit and method for generating a clock signal

Details Integrated circuit and method for generating a clock signal Integrated circuit and method for generating a clock signal

2007-02-27

2007-02-27

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

C323S282000

Reexamination Certificate

active

11168659

ABSTRACT:
An integrated circuit for generating a clock signal includes a voltage conversion unit, a maximum power determination unit, a clock control unit and a clock generator. The voltage conversion unit converts an external power supply voltage into an internal power supply voltage and detects a variance in current consumption of a functional block to generate a detected voltage, wherein the functional block consumes a predetermined current using the internal power supply voltage. The maximum power determination unit determines a maximum current consumption of the functional block and converts the maximum current consumption to a corresponding maximum allowed voltage. The clock control unit generates at least one frequency control signal based on a comparison between the detected voltage and the maximum allowed voltage. The clock generator generates the clock signal whose frequency is adjusted according to the frequency control signal.

REFERENCES:
patent: 6064275 (2000-05-01), Yamauchi
patent: 6917188 (2005-07-01), Kernahan
patent: 2002/0097144 (2002-07-01), Collins et al.
patent: 2843813 (2004-02-01), None
patent: 09-285109 (1997-10-01), None
patent: 100264206 (2000-05-01), None
patent: 2003-0097376 (2003-12-01), None
patent: 1020040017039 (2004-02-01), None

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