Ray-Chi Chang

Title: Innovations by Inventor Ray-Chi Chang

Introduction

Ray-Chi Chang is an innovative inventor based in Tainan, Taiwan, known for his significant contributions to the field of imaging technology. With a portfolio of three patents, his work focuses on enhancing image sensor capabilities through novel methodologies and designs.

Latest Patents

Among his latest inventions, Ray-Chi Chang has developed a sophisticated image sensor that includes readout circuits designed to efficiently capture integrated light signals from pixels via bitlines. Each readout circuit features a correlated double sampling (CDS) circuit, complemented by an analog-to-digital converter (ADC). Notably, this design allows multiple pixels within a row to share a bitline and an associated readout circuit, with the ADC operating concurrently with the CDS circuit, optimizing the operating periods for enhanced performance.

Another notable invention by him is a method for adaptively reducing power consumption in an image sensor. This innovation employs an electronic rolling shutter to reset pixels row by row, reading out signal charges sequentially. By obtaining the integration time and frame height, the system generates a power-saving signal when the integration time exceeds the frame height, subsequently turning off unnecessary circuitry during the active period of the power-saving signal.

Career Highlights

Ray-Chi Chang is currently associated with Himax Imaging, Inc., a company that specializes in the development and manufacturing of advanced imaging solutions. His contributions there have significantly advanced the field of image sensors, driving innovation and efficiency.

Collaborations

Throughout his career, Ray-Chi has worked closely with colleagues such as Amit Mittra and Ping-Hung Yin, fostering a collaborative environment that encourages the exchange of ideas and promotes groundbreaking advancements in imaging technology.

Conclusion

Ray-Chi Chang's innovative spirit and dedication to his work have led to significant advancements in image sensor technology. His patents reflect a deep understanding of the technical challenges faced in this field and showcase his ability to devise effective solutions that have the potential to influence the industry. As technology continues to evolve, Chang's contributions will undoubtedly play a crucial role in shaping the future of imaging solutions.