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:
Dec. 16, 2014
Filed:
Apr. 26, 2010
Seiichiro Hirata, Nagaokakyo, JP;
Nobuo Nakajima, Tokyo, JP;
Shogo Ida, Rittoh, JP;
Harumasa Hojo, Tokyo, JP;
Seiichiro Hirata, Nagaokakyo, JP;
Nobuo Nakajima, Tokyo, JP;
Shogo Ida, Rittoh, JP;
Harumasa Hojo, Tokyo, JP;
The University of Electro-Communications, Tokyo, JP;
Git Japan Incorporated, Rittoh-shi, JP;
Sensorcomm Co., Ltd., Tokyo, JP;
Other;
Abstract
It is an object of the present invention to provide a system with which 3-dimensional position can be accurately measured. Plural UWB transmitter-receivers (), periodically transmitting PN codes of M system and preliminarily disposed on known positions are provided, a server () to synchronize the plural UWB transmitter-receivers () is provided, an RF tag (T), attached to a moving object () as to receive signals (I) synchronously and periodically transmitted from the UWB transmitter-receivers () and reflect the signals (I) adding inherent tag recognition signal, is provided, and the UWB transmitter-receiver () is composed as to obtain the distance to the moving object () attached with the RF tag (T) by synchronous summation and correlative calculation of the PN codes of M system reflected by the RF tag (T).