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. 02, 2008

Filed:

Mar. 26, 2004
Applicants:

Yong-jae Kim, Seoul, KR;

Ki-cheol Park, Kyungki-do, KR;

Won-jun Koh, Kyungki-do, KR;

Yeon-taek OH, Kyungki-do, KR;

Inventors:

Yong-jae Kim, Seoul, KR;

Ki-cheol Park, Kyungki-do, KR;

Won-jun Koh, Kyungki-do, KR;

Yeon-taek Oh, Kyungki-do, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 21/00 (2006.01); G05B 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A robot system including a beacon provided with a transmitting part to transmit a light for location determination, and a mobile robot provided with a receiving part to receive the light. The robot system further includes a rotation driving part to rotate the transmitting part about a predetermined axis; an encoder to add phase information regarding how much the transmitting part is rotated by the rotation driving part with respect to a reference direction to the light; and a location determiner to determine a location of the mobile robot based on the phase information of the light received by the receiving part. Accordingly, a robot system is provided, which can precisely determine a location of a mobile robot regardless of external environmental conditions, distance, and reduction of cost by using a few transmitters.


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