Invention Grant
- Patent Title: Power amplifier apparatus, distortion compensation coefficient updating method, and transmission apparatus
- Patent Title (中): 功率放大器装置，失真补偿系数更新方法和发送装置
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Application No.: US13277409Application Date: 2011-10-20
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Publication No.: US08933752B2Publication Date: 2015-01-13
- Inventor: Kazuo Nagatani , Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada
- Applicant: Kazuo Nagatani , Yuichi Utsunomiya , Nobukazu Fudaba , Hiroyoshi Ishikawa , Hajime Hamada
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Priority: JP2010-236432 20101021
- Main IPC: H03F1/26
- IPC: H03F1/26
Abstract:
A power amplifier apparatus that includes a processor that performs a first distortion compensation processing on an input signal using a distortion compensation coefficient to obtain a first signal and an amplifier that amplifies the first signal. The processor performs a second distortion compensation processing the amplified signal using the distortion compensation coefficient to obtain a second signal and updates the distortion compensation coefficient to enable convergence between the first signal and the second signal.
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