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:
Feb. 08, 2011
Filed:
Apr. 09, 2008
Tessho Ishida, Kanagawa, JP;
Tessho Ishida, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
In a movie projection system, a switch circuit is disposed on a door of a case in which a video server is disposed. A tamper detector detects a state of the door as to whether the door is open or not and a state of the switch circuit as to whether the switch circuit has been tampered with or not, on the basis of an output signal provided by the switch circuit. A projecting operation controller controls the operation of the movie projection system such that when the door is detected to be in the open state or the switch circuit is detected to have been tampered with, the projecting operation controller stops inputting and outputting video data to or from the video server.