Clock generator

Details Clock generator Clock generator

2011-07-19

2011-07-19

Chang, Joseph (Department: 2817)

Oscillators

With particular source of power or bias voltage

Regulated

C331S017000, C331S109000, C331S182000, C331S183000, C331S185000

Reexamination Certificate

active

07982553

ABSTRACT:
This invention discloses a clock generator capable of automatically adjusting output clock when process, voltage, or temperature variation occurred. The clock generator comprises a current generator, for generating a first current and a second current according to a control voltage; a oscillator, coupled to the current generator, for generating a clock signal according to the first current; and a voltage adjuster, coupled to the current generator and the oscillator, for adjusting the control voltage according to the clock signal and the second current; wherein, when the signal frequency of the clock signal changed, the voltage adjuster correspondingly adjusts the control voltage so as to adjust the first current.

REFERENCES:
patent: 5180995 (1993-01-01), Hayashi et al.
patent: 5994971 (1999-11-01), Edwards
patent: 6882231 (2005-04-01), Rolandi
patent: 7154352 (2006-12-01), Smith et al.
patent: 2003/0090330 (2003-05-01), Sakurai et al.
patent: 2006/0114731 (2006-06-01), Park et al.
patent: 2008/0024198 (2008-01-01), Bitonti et al.
patent: 2008/0074170 (2008-03-01), Hsu
patent: 2009/0115496 (2009-05-01), Lee

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