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:
Aug. 21, 2012
Filed:
Mar. 13, 2009
Masahiro Takeshima, Tokyo, JP;
Kazuo Tamura, Sanda, JP;
Takeshi Kawahara, Kakogawa, JP;
Masayoshi Kondou, Ichikawa, JP;
Dai Kawarai, Komae, JP;
Masahiro Takeshima, Tokyo, JP;
Kazuo Tamura, Sanda, JP;
Takeshi Kawahara, Kakogawa, JP;
Masayoshi Kondou, Ichikawa, JP;
Dai Kawarai, Komae, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Engineering & Services Co., Ltd., Hitachi-shi, JP;
Matrix Inc., Osaka, JP;
Abstract
A tag detecting system for detecting a movement of a person or an object that mounts an RFID tag, a moving object detecting method, and an entrance/exit management system using the moving object detecting system are provided. The tag detecting system detects a specific person or object by restricting a detection area of the RFID tag to a narrow area. Since the moving object detecting method detects a piggyback, the entrance/exit system prevents the piggyback even if there are a number of persons passing through an entrance/exit gate almost at the same time.