Princeton Technology Corporation

Ying-Yuan Tang

Hui-Fen Chia

Wei-Chih Huang

Meng-Fu Lin

Hwa-Hsiang Chang

A video-processing chip capable of saving power is disclosed. The video-processing chip includes a microprocessor, a scalar, a first memory, and a second memory. The microprocessor is used for executing program codes. The scalar is used for adjusting a size of a received image. The first memory is coupled to the microprocessor and to the scalar for providing memory space to the scalar for image processing. The second memory is coupled to the microprocessor for storing the program codes of the microprocessor for controlling a power switch. Wherein a size of the first memory is greater than a size of the second memory.

Video-processing chip, audio-video system and related method capable of saving power

The invention discloses a Gamma transform unit. The Gamma transform unit has a lookup table. The lookup table stores a plurality of difference values corresponding to a plurality of predetermined input values. Each of the difference values substantially equals a difference between an ideal output value and a Gamma function output value, both of which correspond to one of the predetermined input values. After the Gamma transform unit has received an input value, it generates a required Gamma function output value corresponding to the received input value through referring to the lookup table.

Adaptive gamma transform unit and related method

An image processing method for scaling an image from an original resolution to a target resolution is provided. A pixel value Pof a target pixel point Nin the target resolution is theoretically composed of original pixel values P-Pof original pixel points N-Nin the original resolution, wherein K is a positive integer larger than 1. First, theoretical combination ratios R-Rcorresponding to the original pixel points N-Nare found. Then, the theoretical combination ratios R-Rare converted to corresponding weights W-W, wherein each of the corresponding weights W-Wis an integer between 1 and 2, n is an integer, and the sum of the corresponding weights W-Wis 2. The original pixel values P-Pare calculated with the corresponding weights W-Wusing a scaler, to generate the pixel value Pof the target pixel point Nand complete the image processing.

Growing community of inventors

Taipei County, Taiwan

Ying-Yuan Tang