Sumio Katoh

Title: The Innovative Mind of Sumio Katoh

Introduction

Sumio Katoh, based in Nagaokakyo, Japan, is a remarkable inventor with a focus on enhancing video signal technology. With a single patent to his name, he has made significant strides in the field of feedback comb-type filters, showcasing a strong understanding of electronics and signal processing. His work continues to influence the industry, improving the quality of video signals.

Latest Patents

Sumio Katoh's notable patent concerns a feedback comb-type filter designed to improve the signal-to-noise (S/N) ratio of video signals. This innovative invention involves a unique construction where the output of a coefficient multiplier is delayed. Unlike traditional designs that use the filter output as feedback, Katoh's approach enhances the S/N ratio by allowing modifications to the coefficient of the coefficient multiplier. Additionally, his design can suppress the generation of pseudo signals by cutting off the feedback delay signal. This invention is characterized by a simplified approach that utilizes a single low-pass filter for both delay circuit operations and limiting horizontal frequency bands, thus minimizing the number of components and enhancing accuracy and reliability.

Career Highlights

Throughout his career, Katoh has worked at Mitsubishi Electric Corporation, one of the leading electronics companies in Japan. His technical expertise and innovative thinking have contributed significantly to advancements in video signal processing technology. His dedication to improving electronics aligns with Mitsubishi's commitment to innovation and quality in the tech industry.

Collaborations

Sumio Katoh has collaborated with Shoichi Sugihara, another talented innovator in the field. Their partnership has fostered a creative environment that encourages the exchange of ideas and techniques, further propelling advancements in their respective projects. Together, they continue to make contributions that enhance the functionality and performance of video signal technologies.

Conclusion

Sumio Katoh stands as a prominent figure in the realm of electronics, particularly for his inventive approach to video signal enhancement. With his patent on the feedback comb-type filter, he has not only improved the quality of video transmissions but also simplified the underlying technology. As technology continues to advance, Katoh's innovations are likely to influence future developments in the field, solidifying his legacy as a key innovator.