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:
Jul. 14, 2009

Filed:

Jan. 30, 2006
Applicants:

Takumi Ikeuchi, Nishinomiya, JP;

Akira Ninomiya, Nishinomiya, JP;

Inventors:

Takumi Ikeuchi, Nishinomiya, JP;

Akira Ninomiya, Nishinomiya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

Upon receiving a NAVTEX broadcast signal, a NAVTEX receiver reconstructs text data, detects a special character string including numerals followed by 'N' or 'S' and numerals followed by “E” or “W” in this order contained in latitude/longitude information, and extracts the latitude/longitude information from a textual sentence containing this special character string. Using the extracted latitude/longitude information and information on latitude/longitude of the receiver, the NAVTEX receiver calculates the distance and direction from own ship to a geographical site expressed by the extracted latitude/longitude information, and outputs information on at least the calculated distance and the extracted latitude/longitude information.


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