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.

Date of Patent:
Mar. 04, 2014

Filed:

Nov. 09, 2005
Applicants:

Ravindra U. Rajapakse, San Francisco, CA (US);

Liping Julia Zhu, San Jose, CA (US);

David L. Shannon, State College, PA (US);

Steven J. Farrell, Sunnyvale, CA (US);

Inventors:

Ravindra U. Rajapakse, San Francisco, CA (US);

Liping Julia Zhu, San Jose, CA (US);

David L. Shannon, State College, PA (US);

Steven J. Farrell, Sunnyvale, CA (US);

Assignee:

Savi Technology, Inc., Alexandria, VA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G08B 1/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A tag has a transmitter for transmitting first wireless signals, and a receiver for receiving second wireless signals from which the tag can determine its current physical location. A different embodiment includes a tag having a transmitter for transmitting wireless signals, and a reader having a receiver for receiving the wireless signals, the receiver in the reader being an ultra-sensitive receiver.


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