Interactive system including substrate and electronic pen with retractable nib
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United States of America Patent
Stats
-
Jan 10, 2012
Grant Date -
Sep 22, 2011
app pub date -
May 26, 2011
filing date -
May 25, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An interactive system including a printed substrate having coded data disposed thereon an an electronic pen for interacting with the substrate. The pen includes an infrared light source; an image sensor; a cartridge having a nib for contacting said substrate; a retraction mechanism for slidably moving the cartridge between a retracted position and an extended position; a force sensor cooperating with the retraction mechanism; and a processor configured to generate indicating data indicative of the interaction with the substrate. The image sensor is configured to sense said coded data only when said force sensor detects that said nib is in contact with said substrate.
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