Feedforward amplifier and radio communication apparatus with...

Telecommunications – Transmitter – Power control – power supply – or bias voltage supply

Reexamination Certificate

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Details

C455S127500, C455S226100, C455S343100

Reexamination Certificate

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10765871

ABSTRACT:
An amplifier comprises a first amplifier circuit which amplifies a first signal to output an amplified first signal, a circuit which outputs a second signal corresponding to a difference between the first signal and the amplified first signal, a second amplifier circuit which amplifies the second signal to output an amplified second signal, a combine circuit which outputs an amplified signal by combining the amplified second signal with the amplified first signal, and a controller which controls a supply of a power to the first amplifier circuit and the second amplifier circuit and has a first mode to supply the power to the second amplifier circuit without supplying the power to the first amplifier circuit.

REFERENCES:
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patent: 6316983 (2001-11-01), Kitamura
patent: 6614854 (2003-09-01), Chow et al.
patent: 2002/0142790 (2002-10-01), Samelis et al.
patent: 2003/0032397 (2003-02-01), Kuechler et al.
patent: 2003/0100312 (2003-05-01), Takahashi
patent: 2003/0162518 (2003-08-01), Baldwin et al.
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patent: 2001-274632 (2001-10-01), None
patent: 2001-292067 (2001-10-01), None
patent: 2002-171135 (2002-06-01), None
patent: 2002-325020 (2002-11-01), None
Notifications of Reasons for Rejection mailed Apr. 11, 2006, from the Japanese Patent Office in Japanese Patent Application No. 2003-089802.
Decision of Rejection Issued by the Japanese Patent Office, mailed Dec. 19, 2006, In Japanese Application No. 2003-089802 and English translation of Decision.

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