Optical scanning apparatus which includes an A/D converter control circuit for matching the conversion range of an A/D converter to the range of an analog signal produced by a photo-sensitive detector in response to radiation originating from a radiation source such as a laser. The converter produces...http://www.google.es/patents/US5046158?utm_source=gb-gplus-sharePatente US5046158 - Optical scanning apparatus with control circuit for optimizing the operating range of an A/D converter
Optical scanning apparatus with control circuit for optimizing the operating ...