Shigehiro Onizawa

Title: Shigehiro Onizawa: Innovator in Streaming Technology

Introduction

Shigehiro Onizawa is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of streaming technology, particularly in enhancing the efficiency of real-time streaming protocols.

Latest Patents

Onizawa holds a patent for a "Gateway device and port number assignment method." This invention addresses the challenges of streaming voice or image data using the Real-Time Streaming Protocol (RTSP). It enables high bit rate streaming even in environments utilizing Network Address Port Translation (NAPT) and Network Address Translation-Protocol Translation (NAT-PT). The patent outlines a method where, upon receiving a SETUP message from a client, a port number with the same digit count as the client’s port number is assigned from a pool and registered in an NAPT table. The SETUP message is then rewritten with this new port number.

Career Highlights

Shigehiro Onizawa is currently employed at Hitachi, Ltd., where he continues to innovate and develop technologies that enhance communication and data transfer. His work has been instrumental in improving the reliability and quality of streaming services.

Collaborations

Onizawa collaborates with fellow inventor Shinichiro Saito, contributing to advancements in their respective fields and fostering innovation within their organization.

Conclusion

Shigehiro Onizawa's contributions to streaming technology exemplify the impact of innovative thinking in enhancing communication methods. His patent reflects a deep understanding of network protocols and their application in real-world scenarios.