Tatsuo Sengoku

Title: Innovations by Tatsuo Sengoku: A Look at His Contributions in A/D Converter Technology

Introduction

Tatsuo Sengoku, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of digital signal processing. With two patents to his name, he is recognized for his innovative work in improving the functionality of A/D converters. His inventive spirit reflects the dedication and creativity that drives advancements in technology.

Latest Patents

Among Tatsuo Sengoku's notable inventions is the latest patent related to a ΣΔ (Sigma-Delta) type A/D converter. This invention addresses the problem of idle tones in the channels of the converter, which are essential for converting analog input signals into digital signals. The patented ΣΔ type A/D converter consists of an L channel that transforms a left analog input signal into a digital signal and an R channel that does the same for a right analog input signal. Both channels incorporate a DC dither circuit that generates a DC addition voltage, shifting the frequency of any idle tone and effectively differentiating the DC addition voltages between the two channels. This innovative approach aims to enhance the quality and accuracy of digital signal conversion.

Career Highlights

Tatsuo Sengoku's professional journey is currently intertwined with Renesas Electronics Corporation, a leading company in semiconductor solutions. His role entails developing cutting-edge technologies that push the boundaries of digital signal processing. His expertise in A/D converter technologies has become instrumental in enhancing the performance of various electronic devices.

Collaborations

During his career, Sengoku has collaborated with notable coworkers such as Toshio Kumamoto and Takashi Okuda. Working together, they have shared ideas and innovations that paved the way for significant advancements in their field. Their collective efforts have contributed to the progress of technologies that serve both consumer and industrial applications.

Conclusion

Tatsuo Sengoku stands as a notable figure in the world of digital signal processing, particularly with his advancements in A/D converter technology. Through his patents, he continues to innovate and inspire, showcasing the importance of creativity and collaboration in the pursuit of technological excellence. His contributions are a testament to the profound impact that skilled inventors have on our modern world, paving the way for future discoveries.