- St. Paul MN, US Stephen J. Craft - Haverhill MA, US
International Classification:
G06F 3/042 G06F 3/0354 G06F 3/03
Abstract:
A digitizer system includes a substrate with indicia having photoluminescent features that uniquely define local areas of the substrate. A sensor device, such as a stylus, may sense radiation emitted from the features, and a controller may determine therefrom the location of the stylus relative to the substrate.
Optical Digitizer System With Position-Unique Photoluminescent Indicia
- St. Paul MN, US Stephen J. Craft - Haverhill MA, US
Assignee:
3M INNOVATIVE PROPERTIES COMPANY - ST. PAUL MN
International Classification:
G01C 21/20
US Classification:
2504581, 2502061
Abstract:
A digitizer system includes a substrate with indicia having photoluminescent features that uniquely define local areas of the substrate. A sensor device, such as a stylus, may sense radiation emitted from the features, and a controller may determine therefrom the location of the stylus relative to the substrate.
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