Oscillators – Automatic frequency stabilization using a phase or frequency... – Plural oscillators controlled
Reexamination Certificate
2008-09-05
2010-11-16
Lee, Benny (Department: 2817)
Oscillators
Automatic frequency stabilization using a phase or frequency...
Plural oscillators controlled
C331S016000, C331S179000, C331S049000
Reexamination Certificate
active
07834705
ABSTRACT:
There is provided a frequency synthesizer including a multi-band voltage controlled oscillator having a plurality of voltage controlled oscillating cores outputting oscillation frequencies having different bands according to an input control voltage. Each of the voltage controlled oscillating cores outputs a frequency band divided into a plurality of bands, and the voltage controlled oscillating core operates by each of the divided bands, and one of the voltage controlled oscillating cores operates in one of the bands according to the control voltage. The frequency synthesizer further includes a comparator unit and an oscillation band-determining unit. The comparator unit compares the control voltage with a pre-set reference voltage range. The oscillation band-determining unit changes the band where the voltage controlled oscillating core operates into another one of the bands when the control voltage is out of the pre-set reference voltage range.
REFERENCES:
patent: 5703540 (1997-12-01), Gazda et al.
patent: 6005443 (1999-12-01), Damgaard et al.
patent: 6933789 (2005-08-01), Molnar et al.
patent: 7180375 (2007-02-01), Maeda et al.
patent: 7382199 (2008-06-01), Talwalkar
patent: 2001/0006356 (2001-07-01), Norskov et al.
German Office Action for application No. 102008039717.2., issued Mar. 4, 2010.
Jo Byeong Hak
Oh Seung Min
Seo Seung Won
Johnson Ryan
Lee Benny
Lowe Hauptman & Ham & Berner, LLP
Samsung Electro-Mechanics Co. Ltd.
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