Hisashi Amagasaki

Title: Hisashi Amagasaki: Innovator in Packet Transmission Technology

Introduction

Hisashi Amagasaki is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of packet transmission technology, holding a total of 2 patents. His work focuses on improving data transmission rates and enhancing communication systems.

Latest Patents

Amagasaki's latest patents include a "Packet transmission device and control method thereof." This invention aims to improve the transmission rate of packets without the need for high-speed user data-conversion cards. The device utilizes a predetermined number of low-speed user data-conversion cards, which are extracted based on a ratio between the output transmission rate and the input transmission rate of packet data. The packet data is then distributed to these cards, which convert the user data into a frame of the HSDPA system for output.

Another notable patent is the "Testing system of voice-band data transmission interface on an exchange." This invention allows maintenance operators to test the normality of frequency shift keying (FSK) signal calling circuits. It includes a loop circuit that imitates a subscriber's telephone set and firmware that judges the normality of the FSK signal, controlling the loop circuit based on testing protocols.

Career Highlights

Amagasaki is currently employed at Fujitsu Corporation, where he continues to innovate and develop advanced communication technologies. His work has been instrumental in enhancing the efficiency and reliability of data transmission systems.

Collaborations

Hisashi Amagasaki collaborates with Yuichiro Oishi, contributing to the development of cutting-edge technologies in their field.

Conclusion

Hisashi Amagasaki's contributions to packet transmission technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of communication systems and a drive to improve data transmission methods.