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:
Dec. 27, 2011

Filed:

May. 21, 2010
Applicants:

Hisao Koga, Fukuoka, JP;

Nobutaka Kodama, Fukuoka, JP;

Taisuke Konishi, Fukuoka, JP;

Inventors:

Hisao Koga, Fukuoka, JP;

Nobutaka Kodama, Fukuoka, JP;

Taisuke Konishi, Fukuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/06 (2006.01); H04B 7/00 (2006.01); H04M 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A communication apparatus has an A/D converter which converts an analog signal which was received, into a digital signal, a converter which converts a reception signal so as to enable handling of phase information, a carrier detector which detects presence or absence of the reception signal, a synchronous circuit which extract synchronization timing from the reception signal, an equalizer which corrects the reception signal so as to cancel influence of a transmission path, a channel estimator which estimates a state of a power line channel, and a decision unit which decides the reception signal, which was amended by the equalizer, by use of a threshold value.


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