Patent ID: 8208761

Claim:
An image format conversion system, comprising: a horizontal filter, for receiving an image input signal with a first clock signal to perform a filtering operation on the image input signal so as to produce a horizontal filtering image signal; a first first-in-first-out (FIFO), connected to the horizontal filter, for temporarily storing the horizontal filtering image signal; a 2D image interpolator, connected to the first FIFO, for performing a deinterlacing, a vertical interpolation and a horizontal interpolation operations on the horizontal filtering image signal so as to produce a scaled progressive image signal; a second FIFO, connected to the 2D image interpolator, for temporarily storing the scaled progressive image signal; and an interpolation clock controller, connected to the horizontal filter, the first FIFO, the 2D image interpolator and the second FIFO, for receiving a second clock signal and producing multiple enable signals to thereby enable the horizontal filter and the 2D image interpolator, wherein the second clock signal and the first clock signal are mutually independent.