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.

Date of Patent:
Apr. 11, 2017

Filed:

Mar. 30, 2016
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Ryosuke Kobayashi, Kawasaki, JP;

Shin Watanabe, Yokohama, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 11/12 (2006.01); H04B 1/04 (2006.01); H04L 7/04 (2006.01); H04L 7/00 (2006.01); H04B 10/27 (2013.01);
U.S. Cl.
CPC ...
H04L 7/04 (2013.01); H04B 10/27 (2013.01); H04L 7/0075 (2013.01); H04L 7/0091 (2013.01);
Abstract

A radio communication device includes a transmission unit that performs a radio transmission process on a baseband signal in which transmission data is included and that transmits a signal in which the baseband signal is superimposed on a carrier wave; a feedback unit that feeds back the signal transmitted by the transmission unit; a detecting unit that detects a carrier wave component by removing a component corresponding to the baseband signal from a feedback signal that is fed back by the feedback unit; a counting unit that counts the pulses of the carrier wave component detected by the detecting unit; and a calculating unit that calculates a frequency error of the carrier wave by using a count value obtained by the counting unit.


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