Tomohiko Endo

Title: Tomohiko Endo: Innovator in Sound Wave Technology

Introduction

Tomohiko Endo is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of sound wave technology, holding a total of 2 patents. His innovative work focuses on methods and devices that enhance sound measurement and analysis.

Latest Patents

One of Tomohiko Endo's latest patents is a "Dip filter frequency characteristic decision method." This method involves determining resonant frequencies as center frequencies of a dip, based on measurement values at a speaker and a microphone in a resonant space. The process identifies a basic amplitude frequency characteristic and a target amplitude frequency characteristic, ensuring that the target characteristic exhibits a larger smoothness degree on the frequency axis. Additionally, a damping level and quality factor of the dip are determined based on the differences between these characteristics.

Another significant patent is the "Method and device for measuring sound wave propagation time between loudspeaker and microphone." This device measures the propagation time of a sound wave using a sound source means that outputs a time-stretched pulse. The calculation means then calculates a cross-correlation function of this pulse and the sound signal received by a microphone, allowing for accurate determination of the sound wave's propagation time.

Career Highlights

Throughout his career, Tomohiko Endo has worked with prominent companies such as Toa Corporation and Etani Electronics Co., Ltd. His experience in these organizations has contributed to his expertise in sound technology and innovation.

Collaborations

Tomohiko has collaborated with notable individuals in his field, including Daisuke Higashihara and Shokichiro Hino. These partnerships have likely enriched his work and led to further advancements in sound wave technology.

Conclusion

Tomohiko Endo's contributions to sound wave technology through his patents and collaborations highlight his role as an influential inventor. His innovative methods and devices continue to impact the field, showcasing the importance of research and development in sound measurement.