Koji Yoshitomi

Title: Koji Yoshitomi: Inventor in Data Processing and Communication

Introduction

Koji Yoshitomi is an inventor based in Kawasaki, Japan. His patent work includes technologies for moving-picture decoding and data-bus communication. He is associated with Fujitsu Corporation and holds 2 patents.

Latest Patents

Yoshitomi’s listed patents address memory management for video decoding and protocol control for data transmission.

- **Method and Device for Decoding Moving Picture.** This invention uses a memory control part to cyclically assign time slots to buffer memory parts and manage access to synchronous RAM. The timing is designed around demanding access conditions, with time-slot groups generated within an imaginary horizontal scanning period. For buffers whose data volume varies with compression, the time-slot endpoint can be adjusted, or an exception can be handled through an interrupt.

- **Protocol Control Circuit for Data Bus System.** This invention manages data and acknowledgement signals communicated over a data bus. Its buffer register unit includes a transmitting buffer register, an acknowledgement buffer register, and a selector. The selector switches between their outputs according to the detected timing for delivering an acknowledgement signal.

Career Highlights

Yoshitomi’s listed inventions focus on practical control mechanisms in digital systems. One addresses memory access scheduling for moving-picture decoding, while the other coordinates transmission and acknowledgement signals in a data-bus system. Both are associated with his work at Fujitsu Corporation.

Collaborations

Yoshitomi’s listed coworkers include Hideaki Shirai and Hidenaga Takahashi.

Conclusion

Koji Yoshitomi’s patent portfolio reflects contributions to video-decoding memory control and reliable data-bus communication, developed in connection with Fujitsu Corporation.