Takefumi Hiraguri

Title: The Innovations of Takefumi Hiraguri

Introduction

Takefumi Hiraguri is a prominent inventor based in Yokosuka, Japan. He has made significant contributions to the field of radio communication, holding a total of 5 patents. His work focuses on enhancing communication methods and systems, particularly in complex environments.

Latest Patents

Hiraguri's latest patents include a radio communication method, a radio communication system, a radio base station, and a radio terminal station. The radio communication method he developed is designed to perform spatial multiplexing communication between cells in overlapping cell environments. In a multi-user multiple input multiple output (MU-MIMO) overlap cell environment, his method allows for the formation of a null between a radio base station and a radio terminal station belonging to different cells. This is achieved using a first set of a 'call signal' and a 'response signal' to perform mutual detection, ensuring that interference of radio waves is minimized. Additionally, the addresses of the radio base station and the radio terminal station are utilized to determine whether they belong to the same or different cells.

Another notable patent involves a station control method and a station control program. This innovation allows for the selection of an application to be booted and controls the operation of the application based on the status of the link between an access point and a station. The station (STA) connected to an access point (AP) includes a procedure for obtaining link information, which encompasses the identifier of the AP. This information is then used to select an application to be booted according to the link information, referencing an action profile that correlates identifiers with applications.

Career Highlights

Hiraguri is currently employed at Nippon Telegraph and Telephone Corporation, where he continues to innovate in the field of telecommunications. His work has been instrumental in advancing radio communication technologies, making significant impacts in both commercial and research applications.

Collaborations

Some of his notable coworkers include Makoto Umeuchi and Tomohiro Tokuyasu. Their collaborative efforts contribute to the ongoing development of cutting-edge communication technologies.

Conclusion

Takefumi Hiraguri's contributions to radio communication are noteworthy, with multiple patents that enhance the efficiency and effectiveness of communication systems. His work continues to influence the field, showcasing the importance of innovation in technology.