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. 12, 2013
Filed:
Nov. 02, 2007
Kouji Ishida, Tokyo, JP;
Kouji Ishida, Tokyo, JP;
NEC Display Solutions, Ltd., Tokyo, JP;
Abstract
A conferencing system prevents useless data processing that accompanies data communication from occurring even when a presenter's device that outputs image data is switched. A projector functions as a node in a tree structural network, and projects an image corresponding to image data and sends the image data to the direct child indicated in parent-child information when receiving the image data from the direct parent indicated in the parent-child information. A switching module, when receiving a switching request for making a request to switch a parent-child relationship from the direct child, sends the switching request to the direct parent, when receiving permission information representing permission to switch from the direct parent, sends the permission information to the direct child that sent the switching request and changes the parent-child information so that the direct parent becomes the direct child and the direct child that sent the switching request becomes the direct parent.