IMAGE CAPTURE DEVICE HAVING IMAGE SIGNAL PROCESSOR

摘要

Provided is a method for controlling a video lens in an image capture device which uses a complementary metal oxide semiconductor (CMOS) image sensor. A vertical sync (Vsync) signal and a horizontal sync (Hsync) signal are separately generated and then synthesized. Thereafter, the resulting signal is synthesized with a DC level mode luminance signal to generate a lens control signal for controlling the video lens.

主权项

1. An image capture device comprising:
a receiver configured to receive a digital signal from a complementary metal oxide semiconductor (CMOS) image sensor; a sync signal generator configured to generate a vertical sync (Vsync) signal and a horizontal sync (Hsync) signal by using the digital signal and generate a composite sync (Csync) signal by synthesizing the Vsync signal and the Hsync signal; a luminance signal generator configured to generate a luminance signal included in the digital signal in a pulse width modulation (PWM) mode and convert the PWM mode luminance signal into a direct current (DC) level mode luminance signal; and a lens control signal generator configured to generate a lens control signal by synthesizing the DC level mode luminance signal and the Csync signal.