CMOS APPARATUS AND METHOD OF MULTI LEVEL RECEPTION FROM PULSE-WIDTH MODULATION BY USING CMOS IMAGE SENSOR

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for receiving a pulse width modulation (PWM) signal at a transmitter in the form of a pulse amplitude modulation (PAM) at a receiver, The receiving terminal includes a bit detector for detecting at least one or more digital bits that maintain a high state during a duty cycle of a transmission signal, and a calculator for calculating a level corresponding to the detected width of the at least one digital bit do.;