Location History:
- Hsin-Chu, TW (2008)
- Sanchong, TW (2008 - 2010)
Company Filing History:
Years Active: 2008-2010
Title: Innovations of Jyh-Kai Chang
Introduction
Jyh-Kai Chang is a notable inventor based in Sanchong, Taiwan. He has made significant contributions to the field of image processing and coding technologies. With a total of three patents to his name, his work has had a considerable impact on the industry.
Latest Patents
One of his latest patents is a block decoding method and apparatus capable of decoding and outputting data in a longitudinal direction. This invention scans a compressed datastream to obtain a start address for each MCUR of a decompressed image. The apparatus can perform Huffman decoding, de-zigzag arrangement, inverse quantization, IDCT, and rotation, which reduces the required memory size by temporarily storing only the desired column of data for output.
Another significant patent is the JBIG coding apparatus and method with a low-cost, high-performance ping-pong buffer arrangement. This invention utilizes a line buffer and an auxiliary buffer to achieve a real-time coding process. It includes a typical prediction unit, a ping-pong buffer unit, an encoding unit, and a control unit, all working together to enhance the efficiency of JBIG encoding.
Career Highlights
Jyh-Kai Chang is currently employed at Sunplus Technology Co., Ltd., where he continues to innovate in the field of image processing. His work has been instrumental in developing advanced coding techniques that improve performance and reduce costs.
Collaborations
He has collaborated with notable coworkers such as Wen-Cheng Ho and Kuo-Kuang Keng, contributing to various projects that enhance the capabilities of image coding technologies.
Conclusion
Jyh-Kai Chang's contributions to the field of image processing through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry positively.