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. 08, 2015
Filed:
Aug. 24, 2012
Yamato Kamaya, Tokyo, JP;
Satoru Nishi, Tokyo, JP;
Makoto Tanibayashi, Shinjyuku, JP;
Takashi Yonezawa, Kanagawa-ken, JP;
Yamato Kamaya, Tokyo, JP;
Satoru Nishi, Tokyo, JP;
Makoto Tanibayashi, Shinjyuku, JP;
Takashi Yonezawa, Kanagawa-ken, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and associated system for estimating a position of an object. A radio wave is received from each radio frequency identification (RFID) tag of N RFID tags affixed to the object at different positions at the object (N≧2). A position of each RFID tag is detected from the received radio waves. A position of each RFID tag is estimated from analysis of the detected positions. The estimating includes utilizing, for n=1, 2, . . . , N, a specified probability function P('p|p) denoting a probability that the estimated position of RFID tag n is ′pif the detected position of RFID tag n is p, wherein ′pand pare vectors from an origin of a coordinate system to the detected position and the estimated position, respectively, of the RFID tag n. The position of the object is ascertained from analysis of the estimated positions.