Patent ID: 7265695

Claim:
A video signal processing apparatus comprising: an A/D converting unit configured to digitize an inputted analog video signal; an integration unit configured to integrate the video signal digitized by the A/D converting unit within a predetermined integration range; a picture display unit configured to display a picture based on an output signal of the integration unit; a detecting unit configured to, when an analog video signal to be inputted to the A/D converting unit is an adjustment signal of the A/D converting unit, detect a difference between an integration value obtained by the integration unit and a preliminarily set specified value; a correcting unit configured to, when the difference is detected by the detecting unit, correct an adjusted value of the A/D converting unit such that the integration value is equal to the specified value; a determining unit configured to determine whether or not the adjustment is completed based on the number of times when the adjusted value corrected by the correcting unit is within a range defined by adding a predetermined error to the specified value; and a cursor generating unit configured to generate a cursor displayed on the picture display unit based on an output signal within a predetermined integration range of the integration unit, wherein an integration range under adjustment is displayed with the cursor.