Shizuo Sugiyama

Title: Inventor Spotlight: Shizuo Sugiyama

Introduction

Shizuo Sugiyama, a notable inventor located in Kodaira, Japan, has made significant contributions to the field of signal processing through his innovative patents. With a total of four patents to his name, Sugiyama has developed advanced technologies that enhance the efficiency and capability of digital signal processors.

Latest Patents

One of Sugiyama's latest patents is the "Arithmetic logic unit for floating point data and/or fixed point data." This invention features a signal processor with an extensive dynamic range that can process both fixed point and floating point data using a unified floating-point arithmetic circuit. This capability allows for high-speed processing of digital signals, such as voice data, in real time. The design includes an arithmetic logic unit that selectively operates on pairs of floating point and fixed point data, facilitating intensive arithmetic operations or conversions between the two formats efficiently.

Another significant patent is the "Adder for floating point data suitable for digital signal processing." This adder adjusts two floating point data items so that their exponent parts align, enabling the addition of their resulting adjusted mantissa parts. It generates first and second shift signals based on the addition results and the difference between the adjusted exponent part and a predetermined minimum value. This innovation optimally manages underflow situations in floating point calculations, exemplifying Sugiyama’s adeptness in tackling complex challenges in digital signal processing.

Career Highlights

Throughout his career, Shizuo Sugiyama has held significant positions at leading technology firms, including Hitachi, Ltd. and Hitachi Denshi Kabushiki Kaisha. His tenure at these companies provided him with a solid foundation to explore and develop his patented technologies further.

Collaborations

Sugiyama has closely collaborated with esteemed coworkers, including Yoshimune Hagiwara and Narimichi Maeda. These innovative partnerships have facilitated the exchange of ideas and expertise, resulting in the creation of advanced technologies and patents that push the boundaries of digital signal processing.

Conclusion

Shizuo Sugiyama's contributions to the field of signal processing are noteworthy, as evidenced by his impactful patents. Through his work, he has enhanced the capabilities of digital signal processors, enabling faster and more efficient handling of complex data types. His career at reputable companies and collaborations with fellow innovators underscore his significance as a leading inventor in the technology sector.