Masaaki Okita

Title: Masaaki Okita: Innovator in Digital Signal Processing and Optical Disk Technology

Introduction

Masaaki Okita is a prominent inventor based in Ehime, Japan. He has made significant contributions to the fields of digital signal processing and optical disk technology. With a total of 2 patents to his name, Okita's work has had a lasting impact on the industry.

Latest Patents

One of Okita's latest patents is a digital signal processor that features an arithmetic device with a reservation processing register. This innovative design allows for the storage of an address and an execution mode as a task list. Additionally, it includes a clear circuit that resets the execution mode when the address in the reservation processing register is copied to a program counter. This advancement enables the digital signal processor, which comprises two arithmetic devices, to eliminate processing waiting time and adjust the processing order at each arithmetic device.

Another notable patent is a pickup control device for optical disk drives. This device adjusts loop gain or determines sample rate based on the control of the optical disk's rotation. When the optical disk operates under Constant Linear Velocity (CLV) control, the loop gains for the focus servo system and tracking servo system are adjusted according to the angular velocity detected by an angular velocity detector. Conversely, when the disk operates under Constant Angular Velocity (CAV) control, the loop gains are adjusted based on linear velocity detected by a linear velocity detector. This structure effectively saves electricity and reduces costs in optical disk drives.

Career Highlights

Masaaki Okita is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in advancing the capabilities of digital signal processing and optical disk systems.

Collaborations

Okita has collaborated with notable coworkers such as Yasushi Imamura and Takahiro Watanabe. Their combined expertise has contributed to the successful development of various technologies in their field.

Conclusion

Masaaki Okita's contributions to digital signal processing and optical disk technology highlight his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving efficiency and functionality in electronic devices.