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:
Nov. 23, 2010
Filed:
May. 17, 2007
Kevin Kwong-tai Chung, Princeton, NJ (US);
Cynthia Ting-wah Chu, Princeton, NJ (US);
Jing Jian LI, Plainsboro, NJ (US);
Xiaoming Shi, Highland Park, NJ (US);
Ming Zou, Hillsborough, NJ (US);
Kevin Kwong-Tai Chung, Princeton, NJ (US);
Cynthia Ting-Wah Chu, Princeton, NJ (US);
Jing Jian Li, Plainsboro, NJ (US);
Xiaoming Shi, Highland Park, NJ (US);
Ming Zou, Hillsborough, NJ (US);
Avante International Technology, Inc., Princeton Junction, NJ (US);
Abstract
An RFID system and method utilizes the power level of messages received from an RFID device for monitoring and/or locating and/or tracking the RFID device, e.g., and typically an object associated with the RFID device. The power level of received messages may be indicated by power level information contained in the message, or by the strength of the received signal carrying the message, or by both. The RFID system and method may be employed to monitor a condition of an object, e.g., a closable container, as to whether it is and/or has been closed or not, including being tampered with. Messages received from the RFID device, as well as an indication of a condition, may be relayed to a remote location.