|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||250/221 ; 341/31|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 5 인용 특허 : 3|
An optical coordinate-input system. A plurality of pairs of light-emitting and light-receiving elements are mutually opposed on a two-dimensional input surface and arranged along the X and Y coordinate axes. A driver causes the light-emitting elements to sequentially emit light so as to scan the surface with light beams. A circuit sequentially binarizes signals from the light-receiving elements. When the interruption of the light beams occurs at a portion of the surface, signals from those light-receiving elements corresponding to this portion are also b...
An optical coordinate-input system comprising: a two-dimensional scanning means having a plurality of light-emitting elements and a plurality of light-receiving elements disposed on a two-dimensional plane forming an XY coordinate system, said plane having first and second pairs of mutually opposing sides, said light-emitting elements being disposed on one of said first pair of sides and on one of said second pair of sides and being arranged along each of the X and Y coordinate axes of the XY coordinate system, and said light-receiving elements being dis...