Yasumasa Sawamura

Title: Yasumasa Sawamura: Innovator in Sonar Technology

Introduction

Yasumasa Sawamura is a prominent inventor based in Tokyo, Japan. He is known for his contributions to sonar technology, particularly in enhancing target signal detection capabilities. His innovative work has led to the development of a patented sonar device that significantly improves the efficiency of signal processing.

Latest Patents

Yasumasa Sawamura holds a patent for a sonar device, signal processing method, and recording medium. This invention aims to enhance the target signal detection ability of an operator. The sonar device features a signal detection processing unit and a noise suppression processing unit. The signal detection processing unit calculates a direction vector for each frequency cell and derives a resultant vector direction by summing the direction vectors of all frequency cells. The noise suppression processing unit calculates the difference between the resultant vector orientation and the signal direction of each frequency cell. It performs a first noise suppression process to reduce stationary noises in the received signal, ensuring that the noise suppression effect is minimized for signals with a smaller difference from the resultant vector direction.

Career Highlights

Yasumasa Sawamura is currently employed at NEC Corporation, where he continues to innovate in the field of sonar technology. His work has been instrumental in advancing the capabilities of sonar devices, making them more effective in various applications.

Collaborations

Yasumasa collaborates with Ryohei Saito, a fellow innovator, to further enhance their research and development efforts in sonar technology.

Conclusion

Yasumasa Sawamura's contributions to sonar technology through his innovative patent demonstrate his commitment to improving signal detection capabilities. His work at NEC Corporation and collaboration with colleagues highlight the importance of teamwork in driving technological advancements.