A multiple channel scanning device has a scanning head with multiple columns of apertures that emit light which is projected to a small spot on the surface of a recorded medium. Light returned from the medium reenters the apertures and is conducted to detectors. In a preferred embodiment, the scanning...http://www.google.es/patents/US6341118?utm_source=gb-gplus-sharePatente US6341118 - Multiple channel scanning device using oversampling and image processing to increase throughput
Multiple channel scanning device using oversampling and image processing to ...
