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Patent Searching and Data


Title:
DISTORTION COMPENSATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/003617
Kind Code:
A1
Abstract:
The distortion compensation device (100) is provided with: a first divider (102) for outputting an input signal divided into a first system signal and a second system signal; a distortion generation circuit (105) for generating a distortion component in the first system signal input thereto and outputting the resulting signal; a second divider (109) for outputting a third system signal and a fourth system signal by dividing the distortion-containing first system signal input thereto; a first combiner (110) for extracting and outputting the distortion component contained in the third system signal upon receiving input of the second system signal and the third system signal; a frequency characteristic adjustment circuit (111) for unbalancing the distortion component output from the first combiner; and a second combiner (116) for combining the unbalanced distortion component from the frequency characteristic adjustment circuit with the fourth system signal and outputting the resulting signal. The distortion generation circuit (105) has non-linear input/output characteristics opposite to those of a device to be compensated.

Inventors:
NISHIHARA, Jun (7-3 Marunouchi 2-chome, Chiyoda-k, Tokyo 10, 〒1008310, JP)
FUJIMOTO, Yuichi (1-15-9 Osaki, Shinagawa-k, Tokyo 32, 〒1410032, JP)
Application Number:
JP2018/016941
Publication Date:
January 03, 2019
Filing Date:
April 26, 2018
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORPORATION (7-3 Marunouchi 2-chome, Chiyoda-ku Tokyo, 10, 〒1008310, JP)
International Classes:
H03F1/32; H04B1/04; H03F3/24
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (Nakanoshima Festival Tower West, 2-4 Nakanoshima 3-chome, Kita-ku, Osaka-sh, Osaka 05, 〒5300005, JP)
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