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:
Apr. 24, 2012
Filed:
Oct. 09, 2009
Applicants:
Shinichi Mitsunaga, Kanagawa, JP;
Mikio Nagahara, Nagano, JP;
Inventors:
Shinichi Mitsunaga, Kanagawa, JP;
Mikio Nagahara, Nagano, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 19/42 (2010.01); G01S 19/46 (2010.01); G01S 19/09 (2010.01);
U.S. Cl.
CPC ...
Abstract
An evaluation point E of a present position candidate corresponding to each satellite set is calculated based on an a priori residual (APR) (APR value), a PDOP value, and the number of satellites of the target satellite set according to E=k·f(APR)+k·f(PDOP)+k·f(number of satellites). Evaluation coefficients kto kfor respectively weighting evaluation functions fto fare determined based on an APR average value.