Masahiro Umehira

Title: The Innovations of Masahiro Umehira

Introduction

Masahiro Umehira is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of wireless communication, holding a total of nine patents. His work focuses on enhancing the efficiency and reliability of wireless transmission systems.

Latest Patents

Umehira's latest patents include a range of advanced technologies such as wireless transmitting apparatus, wireless receiving apparatus, wireless transmission method, wireless reception method, wireless communication system, and wireless communication method. His wireless transmitting apparatus is designed to insert a training signal into a transmission burst at fixed symbol intervals, serving as a pilot signal. The wireless receiving apparatus performs various functions including AD conversion of a received burst signal, symbol timing recovery, frame position detection, and pilot signal extraction. Additionally, it conducts frame synchronization and carrier frequency estimation using the pilot signal. Umehira's work also includes an OFDM signal communication system that operates effectively under severe frequency selective fading environments, ensuring high-quality communication.

Career Highlights

Throughout his career, Umehira has worked with notable organizations such as Nippon Telegraph and Telephone Corporation and Her Majesty the Queen in Right of Canada, as represented by the Minister. His expertise in wireless communication has positioned him as a key figure in the development of innovative technologies.

Collaborations

Umehira has collaborated with esteemed colleagues, including Takatoshi Sugiyama and Atsushi Ohta, contributing to the advancement of wireless communication technologies.

Conclusion

Masahiro Umehira's contributions to wireless communication through his patents and collaborations highlight his role as an influential inventor in the field. His innovative solutions continue to shape the future of wireless technology.