Hisashi Sujikai

Title: Hisashi Sujikai: Innovator in Digital Data Transmission

Introduction

Hisashi Sujikai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of digital data transmission, holding 2 patents that enhance the performance of data communication systems. His work focuses on improving reception performance in the face of changing transmission channel characteristics.

Latest Patents

Sujikai's latest patents include a digital data transmitting device and a digital data receiving device. These inventions aim to provide solutions that maintain reception performance even when transmission channel characteristics change due to factors such as aged deterioration of relays. The transmitting apparatus generates a multiplexing frame composed of N slots, which include control information, data, outer parities, stuff bits, and inner parities, all synchronized with pilot and transmission control signals. The receiving apparatus rewrites a phase error table to calculate phase errors and performs synchronous detection based on pilot signals. This innovative approach allows for reception processing that adapts to the distortion of transmission channel characteristics, ultimately improving reception performance.

Career Highlights

Hisashi Sujikai is associated with Nippon Hoso Kyokai, where he continues to develop and refine his inventions. His work has been instrumental in advancing the technology behind digital data transmission, making significant strides in the industry.

Collaborations

Some of his notable coworkers include Akinori Hashimoto and Yoichi Suzuki, who have collaborated with him on various projects within the field.

Conclusion

Hisashi Sujikai's contributions to digital data transmission technology exemplify the importance of innovation in enhancing communication systems. His patents reflect a commitment to improving performance in the face of challenges, solidifying his reputation as a leading inventor in this domain.