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. 19, 2014
Filed:
Feb. 02, 2011
Ken Takei, Kawasaki, JP;
Kazuo Tamura, Mita, JP;
Nobuaki Kitano, Hitachi, JP;
Seiichi Kashimura, Hitachi, JP;
Hiroyuki Hori, Asaka, JP;
Yasuo Ishikawa, Fukuoka, JP;
Ken Takei, Kawasaki, JP;
Kazuo Tamura, Mita, JP;
Nobuaki Kitano, Hitachi, JP;
Seiichi Kashimura, Hitachi, JP;
Hiroyuki Hori, Asaka, JP;
Yasuo Ishikawa, Fukuoka, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Metals, Ltd., Tokyo, JP;
Abstract
The present invention provides a high/low frequency dual wireless location detection and information transmission system which is high in reliability and maintainability, and can be easily installed. A leakage coaxial inner conductor and a conductor line provided in parallel are short-circuited at an end, a single leakage coaxial operation and a loop operation of the inner conductor and the conductor line are performed at the same time, the ID of a tag is communicated using magnetic fields which locally exist near the conductor line by the loop, and wireless position detection and information communications which are less affected by the influence of ambient environments due to electromagnetic waves in a closed area are realized by open-type lines.