Location History:
- Chiyoda-ku, JP (2015 - 2016)
- Yokohama, JP (2014 - 2019)
Company Filing History:
Years Active: 2014-2019
Title: The Innovations of Kosuke Tsujino
Introduction
Kosuke Tsujino, an accomplished inventor based in Yokohama, Japan, has made significant contributions to the field of technology with a total of 10 patents to his name. His work focuses on advancements in speech processing, demonstrating a commitment to enhancing audio quality and user experience in communication technologies.
Latest Patents
One of Tsujino's latest patents is a speech decoder featuring high-band generation and temporal envelope shaping. This innovative technology involves obtaining a linear prediction coefficient of a signal represented in the frequency domain through linear prediction analysis using covariance or autocorrelation methods. By adjusting the filter strength of the obtained linear prediction coefficient, filtering can be performed in the frequency direction, enabling the shaping of the temporal envelope of the signal. This process effectively reduces pre-echo and post-echo occurrences, greatly improving the subjective quality of the decoded signal. Notably, this enhancement does not significantly increase the bit rate, showcasing a practical bandwidth extension technique represented by Spectral Band Replication (SBR).
Career Highlights
Tsujino's career is marked by his role at NTT Docomo, Inc., where he has collaborated on numerous projects that push the boundaries of speech technology. His dedication to research and innovation has contributed significantly to the company's advancements in telecommunications.
Collaborations
Throughout his career, Kosuke Tsujino has worked alongside talented colleagues, including Kei Kikuiri and Nobuhiko Naka. These collaborations have led to the development of cutting-edge technologies that continue to impact the industry positively.
Conclusion
Kosuke Tsujino represents a notable figure in the realm of technological innovation. His patents and ongoing contributions illustrate a relentless pursuit of improvements in speech decoding and communication efficiency. As industries continue to evolve, inventors like Tsujino play a crucial role in shaping the future of technology.