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:
Sep. 04, 2007
Filed:
Oct. 04, 2004
Atsushi Ogino, Tokyo, JP;
Ryota Yamasaki, Tokyo, JP;
Katsuhiko Tsunehara, Tokyo, JP;
Naoto Matsuzawa, Kawaguchi, JP;
Hideya Suzuki, Ichikawa, JP;
Takashi Yano, Tokorozawa, JP;
Atsushi Ogino, Tokyo, JP;
Ryota Yamasaki, Tokyo, JP;
Katsuhiko Tsunehara, Tokyo, JP;
Naoto Matsuzawa, Kawaguchi, JP;
Hideya Suzuki, Ichikawa, JP;
Takashi Yano, Tokorozawa, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A method and system for detecting the position of a mobile unit efficiently and with high precision in a multipath environment. A wireless position detection system made up of a mobile station containing a wireless communication means to allow sending and receiving multiple to and from mutually different antenna positions and, a base station for performing wireless communication with mobile stations containing a wireless communication means and, multiple wireless receivers for receiving each of the multiple signals sent by the wireless communication means between the base stations and, a server for detecting the position of the mobile station from each wireless receiver and from the position of the base station, and the time relating to received signals measured by the multiple wireless receivers.