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 8286259 B1

PDF
Full Text
Expired
Date of Patent:
Oct. 09, 2012

Filed:

Oct. 26, 2007
Applicants:

Shuji Murayama, Tokyo, JP;

Masaki Kitagawa, Tokyo, JP;

Inventors:

Shuji Murayama, Tokyo, JP;

Masaki Kitagawa, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention aims to provide a network projector which has a simple security function via a network. The network projector comprises a power source unit which supplies power to the network projector and a display signal control unit which, when confirming that a connection confirmation signal which is transmitted at a fixed period from a host computer via a network is not inputted for more than a predetermined time, outputs a supply stop signal to the power source unit indicating that the supply of power should be stopped.


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Murayama, Shuji. (2012). Network projector including a display signal control unit, and projector system including the network projector (U.S. Patent No. 8286259). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8286259

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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