Hideaki Ohsawa

Title: The Innovations of Hideaki Ohsawa

Introduction

Hideaki Ohsawa is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of signal processing and optical disk technology. With a total of 10 patents to his name, Ohsawa's work has had a lasting impact on the industry.

Latest Patents

Ohsawa's latest patents include a signal processing system and an information storage medium. In one embodiment of the signal processing system, a first encoder encodes main information while a second encoder encodes sub-information. A first modulator modulates a carrier based on the output of the first encoder. A duplicating module generates encoded sub-information units by duplicating the output of the second encoder. The second modulator amplitude-modulates the output of the first modulator based on these encoded sub-information units. The modulation is designed to maintain a noise power of a transmission path or storage medium at a specific level. Additionally, his patent for an optical disk medium and optical disk apparatus specifies that the length of a format modulation area in an address segment is limited to 25% of the address-segment length or less, with selectable positions for the format modulation area.

Career Highlights

Throughout his career, Ohsawa has worked with notable companies such as Toshiba Corporation and NEC Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas.

Collaborations

Ohsawa has collaborated with esteemed colleagues, including Chosaku Noda and Yutaka Yamanaka. Their joint efforts have contributed to advancements in technology and innovation.

Conclusion

Hideaki Ohsawa's contributions to signal processing and optical disk technology highlight his role as a leading inventor in Japan. His patents reflect a commitment to innovation and excellence in his field.