Shigehito Shimada

Title: Shigehito Shimada: Innovator in Visible Light Communication

Introduction

Shigehito Shimada is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of visible light communication, holding a total of 4 patents. His innovative work focuses on enhancing communication systems through the use of visible light.

Latest Patents

One of his latest patents is a "System for visible light communication using a single light source." This system enables bidirectional visible-light communication between a visible-light communications device and a mobile terminal. The device utilizes one light source, while the mobile terminal is equipped with a retroflection unit and two optical filters. The first filter extracts a visible light beam modulated with data, while the second filter extracts a non-modulated retroflection light beam.

Another notable patent is the "Method and apparatus for visible light communication with image processing." This invention includes an image input unit, a calculation unit, a preamble detection unit, a bit train detection unit, and a reception unit. The image input unit captures image data from a visible light source carrying data. The calculation unit generates luminance data, while the preamble detection unit identifies the data's preamble based on this luminance data. The bit train detection unit then extracts the data bit train, allowing the reception unit to reproduce the transmitted data.

Career Highlights

Shimada has worked with notable companies such as Toshiba Corporation and Toshiba Solutions Corporation. His experience in these organizations has contributed to his expertise in the field of communication technologies.

Collaborations

Throughout his career, Shigehito Shimada has collaborated with esteemed colleagues, including Katsuyoshi Suzuki and Hideki Ueno. These partnerships have fostered innovation and advancement in visible light communication technologies.

Conclusion

Shigehito Shimada's contributions to visible light communication demonstrate his commitment to innovation and technology. His patents reflect a deep understanding of communication systems, paving the way for future advancements in the field.