A coordinate input apparatus includes a light-receiving unit arranged in a coordinate input region, a reflection unit arranged at the peripheral portion of the coordinate input region to reflect incident light, and a light-emitting unit which illuminates the coordinate input region with light. Angle...http://www.google.fr/patents/US20050030287?utm_source=gb-gplus-shareBrevet US20050030287 - Coordinate input apparatus and control method and program thereof
Coordinate input apparatus and control method and program thereof
Numéro de demande: 10/901,148 Numéro de publication: US 2005/0030287 A1 Date de dépôt: 29 juil. 2004 Brevet délivré: US7283128 ( Date de délivrance 16 oct. 2007)
