Kazuhiro Machida

Title: Kazuhiro Machida: Innovator in Broadcasting Technology

Introduction

Kazuhiro Machida is a notable inventor based in Inzai, Japan. He has made significant contributions to the field of broadcasting technology, holding a total of 5 patents. His work focuses on enhancing security and functionality in pay broadcasting systems.

Latest Patents

One of Machida's latest patents is a pay broadcasting system with enhanced security against illegal access to a downloaded program in a subscriber terminal. This innovative system scrambles broadcast program data with a scramble key that is frequently updated. The scramble key is encrypted with a first key assigned to the subscriber terminal, which is further encrypted with a first master key. This multi-layered encryption enhances the security of stored broadcast programs.

Another significant patent is a video clip identification system that prevents tagged scenes from being used for commercial cutting. In this system, a tagged scene of a video stream is collected while ensuring that the tags cannot be exploited for indiscriminate cutting. The first station generates a tag for each scene, which includes a category, a location, and a length. The second station can then clip parts of the video stream based on user-defined categories while maintaining the integrity of the original content.

Career Highlights

Kazuhiro Machida has worked with Matsushita Electric Industrial Co., Ltd., where he honed his skills in broadcasting technology. His experience in this esteemed company has contributed to his innovative approach to solving complex problems in the industry.

Collaborations

Machida has collaborated with notable coworkers such as Takenosuke Harada and Mitsuteru Kataoka. Their combined expertise has likely fostered a creative environment that encourages innovation and the development of groundbreaking technologies.

Conclusion

Kazuhiro Machida's contributions to broadcasting technology through his patents demonstrate his commitment to innovation and security in the industry. His work continues to influence the way broadcasting systems operate, ensuring a secure and efficient experience for users.