Nobutaka Ono

Title: Nobutaka Ono: Innovator in Sound Source Separation Technologies

Introduction

Nobutaka Ono, a prominent inventor based in Tokyo, Japan, has made significant contributions to the field of sound source separation. With a total of four patents to his name, Ono's work focuses on advanced methodologies for isolating audio signals, which has applications across various industries, including music production and telecommunications.

Latest Patents

Ono's latest patents include innovative solutions such as a sound source separation program, sound source separation method, and sound source separation device. The sound source separation program is designed to enable a computer to acquire an acoustic signal, convert it from a time domain to a frequency domain, and perform sound source separation on the processed acoustic signals. This is achieved through an updating process based on elementary row operations on a demixing matrix, aimed at minimizing an objective function that incorporates both a quadratic form of a separation vector and the determinant of the demixing matrix. Furthermore, his sound source separation apparatus comprises a separation-matrix processor that transforms multiple observation signals from various sound sources into a frequency-domain signal group, while also updating the separation matrix and generating time-series filter coefficients for output. This system facilitates the production of several separation signals from the initial observation signals.

Career Highlights

Throughout his career, Nobutaka Ono has worked with notable organizations, including the Inter-university Research Institute Corporation Research Organization of Information and Systems and Toyota Chuo Kenkyusho. His involvement with these institutions has allowed him to explore and advance his research in sound technologies, leading to patented innovations that enhance audio processing capabilities.

Collaborations

Ono has collaborated with esteemed professionals such as Keiichi Shimaoka and Hirofumi Funabashi, whose expertise and insights have contributed to the success of his projects. These collaborations reflect a synergy in research and development, driving forward the frontiers of sound source separation technology.

Conclusion

Nobutaka Ono stands out as a pioneering inventor in sound source separation, as evidenced by his four patents and collaborative efforts with prominent institutions and fellow researchers. His thorough understanding of audio processing continues to shape the landscape of innovations in this field, benefiting various sectors that rely on clear and distinct sound separation mechanisms.