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.:

US 8890659 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 18, 2014

Filed:

Jul. 15, 2008
Applicants:

Hongai Jiao, Shenzhen, CN;

Jian Zhang, Shenzhen, CN;

Jiang Du, Shenzhen, CN;

Inventors:

Hongai Jiao, Shenzhen, CN;

Jian Zhang, Shenzhen, CN;

Jiang Du, Shenzhen, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01); G06K 7/10 (2006.01); G06K 7/00 (2006.01);
U.S. Cl.
CPC ...
G06K 7/0008 (2013.01); G06K 7/10019 (2013.01);
Abstract

The method includes: a reader begins to count the tags, and waits for feedback of the tags; the tags are split into two subsets if the tags feedback the collision, the tags of one of the subsets feedback, the tags of the other subset begin to feedback when the tags of one of the subsets complete the count; when the collision occurs in the course of feedback, then the split continues until all the tags are completed the count; the tags of many branches are at least once split simultaneously when the tags of the subsets are split.


Find Patent Forward Citations

Jiao, Hongai. (2014). Method for preventing collision of rfid tags in an rfid system (U.S. Patent No. 8890659). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8890659

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