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:
Jul. 31, 2001
Filed:
Dec. 01, 1998
Applicant:
Inventor:
Yasuharu Yoshida, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G01S 1/100 ; G08G 1/017 ;
U.S. Cl.
CPC ...
G01S 1/100 ; G08G 1/017 ;
Abstract
In a mobile object position detecting system for detecting a position of a mobile object having a transmitter, an elongated antenna system is provided for receiving a radio wave signal from the transmitter and outputting first and second electrical signals from first and second ends of the antenna system, respectively. A position detector calculates the position of the mobile object in accordance with a difference in time between the first and second electrical signals.