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:
Jun. 05, 2012
Filed:
Dec. 14, 2007
Guohua Liu, Guangdong, CN;
Guohua Liu, Guangdong, CN;
Julong Educational Technology Co., Ltd., Shenzhen, CN;
Abstract
A large screen information interactive system and method are disclosed, including a computer, a projector, a pointer equipment, and an interactive whiteboardincluding at least one display panelon the same plane and at least one electronic writing boardused for sensing and receiving an operational signal of the pointer equipment. The at least one electronic writing boardis connected with the computerthrough a serial port, a USB port, a wireless communication module, or a bluetooth module. The signal of the pointer equipmentcollected from the electronic writing boardis processed by the computer. A processed displayed image is projected onto the interactive whiteboardby the projector. When one point on the electronic writing boardis written, position and state information signals of the written point are transferred to the computer for converting, and the data is processed according to display attributes and operational commands. A whiteboard coordinate is converted into a screen coordinate corresponding to a display. A state of the pointer equipmentis converted into a mouse state, so as to updating the screen data. Screen signals are projected onto the interactive whiteboardby the projector. Therefore, display and writing problems with an ultra-large screen are resolved, extending the application scope of the interactive whiteboard.