An optical or symbol reader including CMOS circuitry preferably integrated on a single chip. A CMOS optical reader chip comprises a CMOS imaging array having a plurality of pixels each with a dedicated pixel-site circuit. Charge is accumulated at each pixel location transferred upon demand to a common...http://www.google.es/patents/US6230975?utm_source=gb-gplus-sharePatente US6230975 - Optical reader with adaptive exposure control
