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:
Jun. 26, 2012

Filed:

Sep. 08, 2008
Applicants:

Yoshitsugu Sawa, Tokyo, JP;

Hiroshi Araki, Tokyo, JP;

Yukio Goto, Tokyo, JP;

Masanobu Hiramine, Tokyo, JP;

Inventors:

Yoshitsugu Sawa, Tokyo, JP;

Hiroshi Araki, Tokyo, JP;

Yukio Goto, Tokyo, JP;

Masanobu Hiramine, Tokyo, JP;

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

An on-vehicle communication device according to the present invention includes initial signal estimating unitfor estimating initial data based on a part of the transmission command signal from the mobile device. Thus, it also includes PN signal generating unitfor generating a PN signal based on the initial data estimated by the initial signal estimating unit, and partial correlating unitfor calculating a correlation value between the transmission command signal from the mobile device and the PN signal. Thus, it also includes a data demodulating unitfor demodulating the transmission command signal from the mobile device, the starting of the data demodulating unit being controlled based on the correlation value calculated by the partial correlating unit


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