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:
Jan. 26, 2016

Filed:

Mar. 05, 2013
Applicants:

Ken Gudan, Sunnyvale, CA (US);

Sergey Chemishkian, Cupertino, CA (US);

Jonathan J. Hull, San Carlos, CA (US);

Matthew S. Reynolds, Durham, NC (US);

Inventors:

Ken Gudan, Sunnyvale, CA (US);

Sergey Chemishkian, Cupertino, CA (US);

Jonathan J. Hull, San Carlos, CA (US);

Matthew S. Reynolds, Durham, NC (US);

Assignees:

RICOH CO., LTD., Tokyo, JP;

DUKE UNIVERSITY, Durham, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01); G06K 7/10 (2006.01); H04W 52/02 (2009.01); G06K 19/07 (2006.01);
U.S. Cl.
CPC ...
G06K 7/10158 (2013.01); G06K 7/10207 (2013.01); G06K 19/071 (2013.01); G06K 19/0723 (2013.01); H04W 52/0229 (2013.01); H04W 52/0245 (2013.01); H04W 52/0274 (2013.01);
Abstract

A method, system and tag for low power radio frequency communication is described. In one embodiment, the RF tag comprises: an access point comprising: a first antenna; a first radio coupled to the first antenna; a central processing unit coupled to the first radio; a backscatter adapter coupled to the access point via a wired communication interface, the backscatter adapter comprising a backscatter radio and a second antenna coupled to the backscatter radio for use in communicating with an RF tag in the network via backscatter.


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