Osamu Itoku

Title: Osamu Itoku: Innovator in Digital Technology

Introduction

Osamu Itoku is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of digital technology, particularly in the development of digital-to-analog converters and interruption control apparatuses. With a total of 2 patents to his name, Itoku continues to push the boundaries of innovation in his field.

Latest Patents

One of Itoku's latest patents is a digital-to-analog converter designed to increase the number of bits converted. This invention comprises a core digital-to-analog converter that transforms a digital signal of a first number of bits into an analog signal. It also includes a generator of an addend that corresponds to the digital signal of a second number of bits. An adder adds the addend as the least significant bit to the digital signal, supplying its output to the core converter. Additionally, a filter eliminates ripples from the input to provide a ripple-eliminated analog signal at the output terminal. This innovative design allows the converter to handle digital signals with a number of bits exceeding the first number, specifically the sum of the first and second numbers.

Another notable patent by Itoku is an interruption control apparatus. This apparatus features registers that store priority data and a circuit that produces scanning data in a priority order. The priority data is compared with the scanning data through a scanning operation. When the priority data matches the scanning data, a coincidence signal is generated. An interruption request signal from an interruption source is then transferred to an interruption processing unit only when the coincidence signal is active. This design enables priority control for multiple interruption requests using a simple hardware circuit, eliminating the need for complex software processing.

Career Highlights

Osamu Itoku is currently employed at NEC Corporation, a leading technology company known for its innovative solutions. His work at NEC has allowed him to focus on advancing digital technology and contributing to the company's research and development efforts.

Collaborations

Throughout his career, Itoku has collaborated with notable colleagues, including Yukio Maehashi and Yukihiro Nishiguchi. These collaborations have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Osamu Itoku is a distinguished inventor whose work in digital technology has led to significant advancements in the field. His patents reflect a commitment to innovation and a desire