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:
Mar. 17, 2009
Filed:
Oct. 25, 2005
Akifumi Hayashi, Misato-mura, JP;
Akifumi Hayashi, Misato-mura, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
A positioning system capable of reducing the volume of data communication in a server positioning system is provided. A terminal device has the information for a positioning transmitting section and can transmit information for positioning containing the actually measured current positioning basic information and/or the estimated basic information to the positioning device. The amount of the estimated basic information is smaller than the amount of the current positioning basic information, thus, the amount of information that the terminal device transmits to the positioning device becomes smaller in the case where the terminal device transmits the estimated basic information with respect to the position information satellite having the difference within the allowable range compared to the case where it transmits only the actually measured current positioning basic information with respect to all of the position information satellites.