Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yongnan Xuan0
Suili Feng0
Date of Patent
March 3, 2009
0Patent Application Number
108360970
Date Filed
April 29, 2004
0Patent Primary Examiner
Patent abstract
A system for transmitting graphic information from a writing area to a display device. The method can include the operation of transmitting a signal from a writing device. The signal can be received by a plurality of transceivers, each of the transceivers being placed a sufficient distance from the remaining plurality of transceivers that there is a calculable time difference of the wireless signal received between the plurality of transceivers to enable a determination of the writing device's location and movement. A further operation is displaying the writing device's location and movement on a display device such that the electronic medium shows substantially similar graphic information as compared to the writing area.
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