Arent Fox Kintner Plotkin & Kahn PLLC
Coordinate position detecting method and display apparatus using the same
A coordinate position detecting method uses a plurality of light emitting elements and a plurality of light receiving elements located on mutually opposite sides, all the elements being arranged at a predetermined interval in horizontal and vertical directions, with each pair of mutually opposed light emitting element and light receiving element forming a light beam path, such that the coordinate position of a light blocking object can be detected once the light beam path is blocked. The method comprises: storing N previous coordinate datas obtained when detecting a movement of the light blocking ojecte, using n (1&lE;n&lE;N) coordinate datas of the N previous coordinate datas to calculate a coordinate position of the light blocking object; and changing the number of the coordinate datas for use in calculating the coordinate position, in accordance with a speed of the movment of the light blocking object.
Pioneer Corporation
G
G06F
inventional
Masayoshi Hiroshi Tsutomu Masaaki
Murayama Kida Ohtani Saito