Yoshiyuki Iwamura

Title: Yoshiyuki Iwamura: Innovator in Optical Disk Technology

Introduction

Yoshiyuki Iwamura is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of optical disk technology, holding a total of 6 patents. His work has been instrumental in advancing the efficiency and functionality of optical disk controllers.

Latest Patents

Iwamura's latest patents include an innovative optical disk controller that sets the sampling interval according to the rotational speed of the optical disk. This invention reduces the frequency of output of status reports, thereby relieving the burden on the system controller. The optical disk controller features a status generator that produces status reports representing the operation state of the controller for each sector of a disk. Additionally, it includes a status sampling section that samples these reports at a predetermined interval. If a generated status report matches a 'sampling abort' status stored in a sampling category, the status sampling is aborted.

Another notable invention is a program modification device designed to modify programs fixedly recorded in a ROM. This device allows for modifications at desired positions in the program with minimal hardware. It comprises a modifying address register that stores the addresses of program data to be modified before execution. Furthermore, it includes a modifying address storage table that pairs the addresses of modification source programs with those of the modification target programs. The modification target program contains embedded instructions to load necessary information from the modifying address storage table to the modifying address register prior to executing the program to be modified.

Career Highlights

Yoshiyuki Iwamura is currently employed at Matsushita Electric Industrial Co., Ltd., a leading company in the electronics industry. His work at Matsushita has allowed him to focus on developing cutting-edge technologies that enhance optical disk performance and reliability.

Collaborations

Iwamura has collaborated with notable coworkers, including Fumio Sumi and Motohide Nishibata. Their combined expertise has contributed to the successful development of innovative technologies in the field.

Conclusion

Yoshiyuki Iwamura's contributions to optical disk technology through his patents and work at Matsushita Electric Industrial Co., Ltd. highlight his role as a key innovator in the industry. His inventions continue to influence the efficiency and functionality of optical disk systems.