Oscillators – Automatic frequency stabilization using a phase or frequency... – With stable heterodyne oscillator or source
Reexamination Certificate
2006-02-15
2008-03-18
Chang, Joseph (Department: 2817)
Oscillators
Automatic frequency stabilization using a phase or frequency...
With stable heterodyne oscillator or source
C455S323000
Reexamination Certificate
active
07345551
ABSTRACT:
A frequency synthesizer for mixing reference frequencies using at least one control signal has a local oscillator, frequency dividers for dividing a frequency generated from the local oscillator and generating at least one control signal, and a single side band (SSB) mixer for mixing the reference frequencies, using the frequency generated from the local oscillator and the control signal. The frequency synthesizer has a simplified structure, and can easily mix reference frequency signals without a need for additional power.
REFERENCES:
patent: 2005/0255822 (2005-11-01), Friedrich et al.
patent: 1998-065461 (1999-04-01), None
Cha Choong-yul
Kim Hoon-tae
Suh Chun-deok
Chang Joseph
Sughrue & Mion, PLLC
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