DIGITIZER TABLET COMPRISING COORDINATE LOCATING

Brand	Owner	Address	Description
3DRAW	Polhemus Incorporated	One Hercules Drive Post Office Box 560 Colchester VT 05446	digitizer tablet comprising coordinate locating instrument, object supporting work surface, and coordinate measuring electronics, for locating surface coordinates of an object;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

The invention, an improved device and method for the pointer system of a digitizer tablet, is to repetitiously emit signals sequentially from a specific set of inductive loop when the position pointed by the wireless pointer device is located within a range formed by this specific set of inductive loop induced most intensively during a locally scanning process. After a transient energy storage of the wireless pointer device, corresponding resonant signals are emitted out and are received sequentially by several sets of inductive loop located on the digitizer tablet in the neighborhood of this specific set of inductive loop and, by these signals, the wireless pointer device's coordinate position on the digitizer tablet is calculated out relatively. Thereby, the intensities of the resonant signals received by these several sets of inductive loop will be displayed as a linear distribution, such that the calculation formula for coordinate position and the design for relative circuit elements may be simplified greatly, and the production cost and the power consumption may further be lowered down effectively.