05557076 is referenced by 57 patents and cites 12 patents.

A cordless position detection apparatus includes a position detection area and a pointer. A plurality of conductors are arranged side-by-side in the position detection area. The position detection area has a selection circuit for selecting single conductors, and a transmitting circuit that provides a transmitting signal having at least one harmonic to a selected conductor. A pointer for use with the position detecting area includes a resonance circuit which is tuned to an harmonic of the transmitting signal. The pointer is excited by the transmitting signal to oscillate and radiates a receiving signal. A receiving circuit in the detection apparatus detects the receiving signal in a selected conductor and processing means uses this received signal to determine a position indicated by the pointer.

Title
Cordless position detection apparatus
Application Number
8/339699
Publication Number
5557076
Application Date
November 14, 1994
Publication Date
September 17, 1996
Inventor
Josef Rohrmulle
Fahrenzhausen
DE
Dietrich Hahn
Neufahrn
DE
Rudi Wieczorek
Munich
DE
Agent
Cushman Darby & Cushman
Assignee
Mikron Gesellschaft Fur
DE
IPC
G08C 21/00
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