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:
Oct. 30, 2018
Filed:
Jan. 16, 2015
Applicant:
Hand Held Products, Inc., Fort Mill, SC (US);
Inventors:
Ynjiun Paul Wang, Cupertino, CA (US);
Huyu Qu, San Jose, CA (US);
Assignee:
HAND HELD PRODUCTS, INC., Fort Mill, SC (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06K 7/08 (2006.01); G06K 19/06 (2006.01); G06K 19/077 (2006.01); H01Q 1/22 (2006.01); H01Q 15/00 (2006.01); G06K 7/10 (2006.01);
U.S. Cl.
CPC ...
G06K 19/07783 (2013.01); G06K 7/10326 (2013.01); G06K 19/07754 (2013.01); G06K 19/07788 (2013.01); H01Q 1/2216 (2013.01); H01Q 1/2225 (2013.01); H01Q 15/0086 (2013.01);
Abstract
A radio frequency identifier (RFID) tag can comprise an RFID chip, an antenna provided by a patch cell stack; and a feed line electrically coupling the RFID chip to the antenna. An equivalent circuit for the patch cell stack can comprise at least one inductance group comprising at least two series inductances, and at least one shunt capacitance. The antenna can have a composite right- and left-handed (CRLH) structure.