Mikio Shimazu

Title: Inventor Mikio Shimazu: Innovations in Packet Transmission and Digital Information Embedding

Introduction

Mikio Shimazu, an accomplished inventor from Iizuka, Japan, has made significant contributions to the fields of telecommunications and digital information processing. With a total of four patents to his name, he has developed innovative solutions that enhance the efficiency of packet transmission and the embedding of digital information.

Latest Patents

One of Shimazu's latest inventions is an apparatus and method for packet transmission. This apparatus is designed to transfer arriving packets directly to the highest-priority queue under non-congestion conditions. It classifies the priority of a packet only when congestion exists. In this system, non-congestion is determined when all queues are empty, while congestion is assessed using upper and lower thresholds based on the total number of packets in all queues. This invention significantly improves processing speed by eliminating the need for classifying incoming packets during non-congestion periods, thus avoiding re-queuing or packet-replacing operations.

Another notable patent by Shimazu is an apparatus for embedding and extracting digital information, which includes a method for processing signals. This innovative apparatus features a band dividing device that segments a signal into transform coefficients across multiple frequency bands. It incorporates a block divider, quantization portion, signal replacement portion, mean difference addition portion, mean calculation portion, and a band synthesis portion to embed information efficiently. The quantization portion calculates a mean value of transform coefficients and subjects it to linear quantization using a predetermined step-size. This allows for the precise replacement of quantization values based on the information to be embedded, ultimately reconstructing a signal with the embedded data.

Career Highlights

Mikio Shimazu has worked with renowned companies, including Matsushita Electric Industrial Co., Ltd. and Matsushita Electric Industries, Ltd. His experience in these organizations has undoubtedly enriched his understanding of technology and innovation.

Collaborations

Throughout his career, Shimazu has collaborated with talented individuals such as Akinori Tatsumi and Mitsuhiro Suzuki. These partnerships have likely fostered creativity and innovation in his work, contributing to the successful development of his patents.

Conclusion

Mikio Shimazu's innovative work in packet transmission and digital information embedding demonstrates his mastery in the field of technology. His patents reflect a deep understanding of telecommunications and information processing, contributing valuable solutions that enhance efficiency and functionality. As an inventor, Shimazu continues to make a lasting impact in his area of expertise.