The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 28, 2017
Filed:
Mar. 24, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yasuhiro Okawa, Sendai, JP;
Takumi Takayashiki, Sendai, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A wireless communication device includes an antenna, a DPDC, an amplifier, a coupler, and a bias output unit. The DPDC performs distortion compensation on a transmission signal based on a feedback signal. The amplifier amplifies the transmission signal subjected to the distortion compensation by the DPDC. The coupler splits the transmission signal amplified by the amplifier into a transmission signal output to the antenna and the feedback signal input to the DPDC. The DPDC measures an index based on a reflected wave obtained by reflection of the transmission signal split by the coupler from the antenna. The bias output unit applies a bias voltage for controlling an efficiency of an amplifier to the amplifier in accordance with the index measured by the DPDC.