| 摘要 |
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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