Abstract: An audio/video separator provides a high-performance and cost-effective solution to analog TV reception with only one A/D converter and a minimum of analog IF components. The apparatus may operate on a digitized TV signal and, when integrated with a digital video processor, process video signals while separating audio signals. The resultant audio and video signals may be considered to have excellent signal quality due to highly optimized demodulation architecture and digital signal processing techniques on both audio and video data paths.

Abstract: An audio/video separator provides a high-performance and cost-effective solution to analog TV reception with only one A/D converter and a minimum of analog IF components. The apparatus may operate on a digitized TV signal and, when integrated with a digital video processor, process video signals while separating audio signals. The resultant audio and video signals may be considered to have excellent signal quality due to highly optimized demodulation architecture and digital signal processing techniques on both audio and video data paths.

Abstract: An audio/video separator provides a high-performance and cost-effective solution to analog TV reception with only one A/D converter and a minimum of analog IF components. The apparatus may operate on a digitized TV signal and, when integrated with a digital video processor, process video signals while separating audio signals. The resultant audio and video signals may be considered to have excellent signal quality due to highly optimized demodulation architecture and digital signal processing techniques on both audio and video data paths.

Abstract: A TV signal reception system is configured to include adjustable components and a controller to provide instructions to adjust the adjustable components. By pre-arranging configurations corresponding to multiple variants of world wide TV standards, the TV signal reception system may avoid the hardware costs of accomplishing the reception of multiple standards of with parallel hardware for each standard and/or variant.

Abstract: A digital signal processing (DSP) method to process rendered text in order to achieve up to 300% of the horizontal resolution on any suitable digital display devices such as LCD, PDP and DLP. When the text is rendered, a single picture element (a “pixel”) of a matrix display screen is actually composed of three “sub-pixels”: one red, one green, and one blue (RGB or BGR). Taken together this sub-pixel triplet makes up what has been traditionally thought of as a single pixel. By staggering and processing the sub-pixel elements horizontally, font resolution is effectively increased to the maximum of 300%. There are three processing steps involved. First, the color image is expanded to a gray scale image having triple the number of horizontal pixels as the original image by interleaving the sub-pixels. Next, a black and white text/graphics (TG) detector is deployed to identify the TG of interest in the gray scale image.

Abstract: A block matching system matches a motion block in one video image frame to a matching block another video image frame. The system includes a plurality of Hadamard transform processors which transform the motion block and a plurality of trial matching blocks from the other video image frame. The transformed matching blocks are then compared to the transformed motion block, and the transformed matching block which has the smallest difference relative to the transformed motion block is determined. The matching block which corresponds to the determined transformed matching block is selected as the matching block for the motion block. The block matching system may transform motion blocks having different numbers of rows and columns. In one application, the system matches a relatively large motion block in the one frame to a corresponding large matching block in the other frame and determines a displacement between the matching block and the motion block.