High frequency power device for protecting an amplifying...

Electricity: power supply or regulation systems – Output level responsive – Using a three or more terminal semiconductive device as the...

Reexamination Certificate

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C323S283000, C323S284000

Reexamination Certificate

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07615983

ABSTRACT:
A high frequency power device includes a first oscillator outputting a first oscillating signal oscillated by a first predetermined frequency and a second oscillator outputting a second oscillating signal oscillated by a second predetermined frequency. A phase adjuster adjusts the phase of the second oscillating signal and a modulation index adjuster adjusts a modulation index of the second oscillating signal. A modulator outputs a modulated signal obtained by modulating, in frequency, the first oscillating signal by the phase adjusted and modulated second oscillating signal, and a high frequency output unit amplifies and outputs the modulated signal outputted from the modulator.

REFERENCES:
patent: 2002/0158622 (2002-10-01), Rayne et al.
patent: 2002/0175722 (2002-11-01), Mano et al.
patent: 2005/0240101 (2005-10-01), Kato et al.
patent: 2006/0220573 (2006-10-01), Kotani et al.
patent: 2007/0089525 (2007-04-01), Momose et al.
patent: 2007/0121267 (2007-05-01), Kotani et al.
patent: 2003-143861 (2003-05-01), None
English Language Abstract of JP 2003-143861.
U.S. Appl. No. 11/467,228 to Kotani et al., filed Aug. 25, 2006.

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