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:
Dec. 28, 1999
Filed:
Sep. 10, 1998
Roy Want, Los Altos, CA (US);
Kenneth P Fishkin, Redwood City, CA (US);
Anuj Uday Gujar, Palo Alto, CA (US);
Beverly L Harrison, Palo Alto, CA (US);
Wesley R Irish, Redwood City, CA (US);
Xerox Corporation, Stamford, CT (US);
Abstract
An electronic tag has a processor, a readable memory for holding an identification number connected to the processor, and an antenna connected to the processor for radiofrequency broadcasting of the identification number. A power supply powers the antenna to broadcast the identification number. A user selectively controls operation or non-operation of the electronic tag by switching an interconnect switch on or off. The interconnect switch permits interconnects the processor, readable memory, antenna, and power supply to selectively allow radiofrequency broadcasting of the identification number. Bitwise communication to a tag reader using only a passive electronic tag is possible.