Invention Grant
- Patent Title: Distortion compensation amplifier device and distortion compensation method
- Patent Title (中): 失真补偿放大器和失真补偿方法
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Application No.: US13198888Application Date: 2011-08-05
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Publication No.: US08798197B2Publication Date: 2014-08-05
- Inventor: Satoshi Matsubara , Shuya Hirata , Takeshi Ohba , Hideharu Shako , Jun Sugiyama
- Applicant: Satoshi Matsubara , Shuya Hirata , Takeshi Ohba , Hideharu Shako , Jun Sugiyama
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Fujitsu Patent Center
- Priority: JP2010-181190 20100813
- Main IPC: H04K1/02
- IPC: H04K1/02 ; H04L27/36 ; H04L27/20
Abstract:
A distortion compensation amplifier device for compensating for distortion of a transmission signal generated by amplifying the transmission signal and for outputting the compensated transmission signal. The distortion compensation amplifier includes a storage unit that stores therein distortion compensation coefficients; a processor that performs distortion compensation processing on the transmission signal by using one of the distortion compensation coefficients; and an amplifier that amplifies the transmission signal that has been subjected to the distortion compensation processing; wherein the processor calculates an average value of the distortion compensation coefficients stored in the storage unit, and calculates the distortion compensation coefficient on the basis of the transmission signal, and the average value.
Public/Granted literature
- US20120039415A1 DISTORTION COMPENSATION AMPLIFIER DEVICE AND DISTORTION COMPENSATION METHOD Public/Granted day:2012-02-16
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