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:
Mar. 21, 2017
Filed:
Jun. 23, 2015
Applicant:
Cj Cgv Co., Ltd., Seoul, KR;
Inventors:
Hwan Chul Kim, Seoul, KR;
Su Ryeon Kang, Goyang-si, KR;
Assignee:
CJ CGV CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03B 21/26 (2006.01); H04N 9/31 (2006.01); G03B 21/14 (2006.01); G03B 21/16 (2006.01); E04H 3/22 (2006.01); G03B 21/20 (2006.01); G03B 21/56 (2006.01); G03B 37/04 (2006.01);
U.S. Cl.
CPC ...
H04N 9/3155 (2013.01); E04H 3/22 (2013.01); G03B 21/14 (2013.01); G03B 21/16 (2013.01); G03B 21/206 (2013.01); H04N 9/3144 (2013.01); H04N 9/3147 (2013.01); H04N 9/3182 (2013.01); H04N 9/3188 (2013.01); H04N 9/3194 (2013.01); G03B 21/26 (2013.01); G03B 21/56 (2013.01); G03B 37/04 (2013.01);
Abstract
A projection device management system includes two or more projection devices which project images on a projection surface; and a management device which corrects the image projected by each projection device based on information on each projection device and manages information for maintenance of each projection device, the two or more projection devices being installed in the same theater.