Optical scanner including position sensors

摘要: An optical scanning device (14) receives information from a page (11) of printed text (12) via an electrooptical transducer (16) and uses that to fill bit map in memory (102). In order track the location scanner relative page, thus facilitating entry into map, mouse (19) is included scanner. accordance with another embodiment this invention, two mice (19, 150) are provided on (148) indicate not only position but also angle held at page. The can be used conjunction character recognition device, photocopying or any number other devices. indicia (210) placed either transparent sheet mechanical constraint (200). A set sensors (208) (202) adapted sense spaced differently indicia, therefore indicating movement very fine resolution.