Patent ID: 8693809

Claim:
A video processing circuit for enlarging and enhancing sharpness of input video data, the video processing circuit comprising: N linear buffers for respectively buffering N sets of pixel row data of the input video data, wherein N is a natural number; a video scaling circuit for generating I sets of enlarged pixel row data by means of interpolation according to the buffered N sets of pixel row data in the N linear buffers and a currently inputted (N+1)th set of pixel row data, wherein I is a natural number greater than N; a video smoothing circuit for generating I sets of smoothed and enlarged pixel row data according to the buffered N sets of pixel row data in the N linear buffers and the (N+1)th set of pixel row data; and a blending circuit for obtaining I sets of high-frequency pixel row data according to the I sets of enlarged pixel row data and the I sets of smoothed and enlarged pixel row data, and obtaining I sets of sharpness-enhanced pixel row data by means of blending according to the I sets of enlarged pixel row data and the I sets of high-frequency pixel row data.