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:
Sep. 03, 2013

Filed:

Jun. 29, 2009
Applicants:

Hyuk Lim, Gwangju, KR;

Jae-hyung Jang, Gwangju, KR;

Yung-kwan Kim, Gwangju, KR;

Inventors:

Hyuk Lim, Gwangju, KR;

Jae-Hyung Jang, Gwangju, KR;

Yung-Kwan Kim, Gwangju, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04Q 5/22 (2006.01); G05B 23/02 (2006.01); G08B 13/14 (2006.01); H04B 7/212 (2006.01); H04L 12/413 (2006.01); H04W 4/00 (2009.01); G06F 17/00 (2006.01); G06F 19/00 (2011.01); H04W 40/00 (2009.01);
U.S. Cl.
CPC ...
Abstract

A method of recognizing a tag in an RFID reader includes: obtaining a predetermined frame size in the case where throughput obtained by reflecting a slot length based on the remaining number of tags except for recognized tags within a frame progressing current tag recognition that substantially has a maximum value; and when the current frame size is different from the predetermined frame size, stopping the current progress of frame and changing the current frame size into the expected frame size. The method of recognizing a tag may further include when the current frame size is equal to the expected frame size, changing the current frame size into the frame size that does not cause a throughput inversion phenomenon for the remaining number of tags to be recognized within the frame progressing the current tag recognition. By the throughput inversion phenomenon, the occurrence of throughput loss can be prevented and the tag recognition time is reduced to recognize the tags at high speed.


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