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:
Feb. 23, 2010
Filed:
Jun. 28, 2005
Chih-hsin Wang, San Jose, CA (US);
Chih-Hsin Wang, San Jose, CA (US);
R828 LLC, Monte Sereno, CA (US);
Abstract
A system for tracking elements employing fixed tags that are permanently attached internally or externally to elements. The tags include radio-frequency (RF) communication units that have wireless communication with RF communicators. The wireless communications between the RF tags and the RF communicators operate with a tag communication protocol that defines the operations and sequences for storing information into and retrieval of information from tags. Each communicator has a processor for controlling a security routine with the tag. Each tag has a tag memory having storage locations for storing security information, a controller for accessing the tag memory to access security information in response to the security routine and an I/O unit for electronic communication with the controller and for RF communication with the communicator.