Patent ID: 7084795

Claim:
A video signal processing system with a dynamic calibration loop of an analog to digital converter comprising: a calibration switch for transmitting signals according to a control signal; a reference switch module for transmitting reference voltages according to a plurality of control signals; a reference voltage generator coupled to the reference switch module for providing the reference voltages; a coarse tuner coupled to the calibration switch and the reference switch module for coarse-tuning received signals; an analog to digital converter coupled to the coarse tuner for converting analog signals to digital signals; a fine-tuner coupled to the analog to digital converter for fine-tuning received signals; and a calibration logic module for controlling the calibration switch, the reference switch module, the coarse tuner, the analog to digital converter, and the fine tuner according to signals outputted from the fine tuner, so as to compensate errors of the analog to digital converter.