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.
Patent No.:
Date of Patent:
Feb. 12, 2013
Filed:
Aug. 11, 2009
Applicants:
Hidekazu Maezawa, Nagano, JP;
Kiyotaka Muraki, Nagano, JP;
Inventors:
Hidekazu Maezawa, Nagano, JP;
Kiyotaka Muraki, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/42 (2010.01); G01S 19/06 (2010.01);
U.S. Cl.
CPC ...
Abstract
A method of determining an initial position in executing a positioning calculation based on satellite signals from positioning satellites, includes: (a) executing position converging calculation based on the satellite signals using each of a plurality of first candidate positions as a provisional initial position; (b) selecting at least one second candidate position from the first candidate positions based on a calculation result of the position converging calculation; and (c) selecting the initial position from one of the second candidate positions using the satellite signals.