Invention Grant
- Patent Title: Distortion correction control apparatus and distortion correction control method
- Patent Title (中): 失真校正控制装置和失真校正控制方法
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Application No.: US12567510Application Date: 2009-09-25
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Publication No.: US07881404B2Publication Date: 2011-02-01
- Inventor: Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Yasuyuki Oishi
- Applicant: Hiroyoshi Ishikawa , Kazuo Nagatani , Hajime Hamada , Nobukazu Fudaba , Yuichi Utsunomiya , Yasuyuki Oishi
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Main IPC: H04L25/49
- IPC: H04L25/49 ; H03C3/08

Abstract:
A distortion correction control apparatus is for compensating for a burst distortion of a transmission amplifier caused by a burst of an input signal of a transmission target. The apparatus includes a generation unit that generates a distortion correction coefficient having reverse characteristics to the foregoing burst distortion; a unit that multiplies the distortion correction coefficient output from the generation unit by the input signal or adds the distortion correction coefficient output from the generation unit to the input signal, upon reception of burst information notifying of switching between presence and absence of the input signal; and an update unit that updates, based on the input signal and a branch signal fed back as an output signal of the transmission amplifier, parameters of functions used for adaptively generating the distortion correction coefficient, and that inputs the updated parameters to the generation unit.
Public/Granted literature
- US20100062733A1 DISTORTION CORRECTION CONTROL APPARATUS AND DISTORTION CORRECTION CONTROL METHOD Public/Granted day:2010-03-11
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