Hitoshi Matsuzawa

Title: Hitoshi Matsuzawa: Innovator in Noise Suppression Technology

Introduction

Hitoshi Matsuzawa is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of noise suppression technology, holding a total of 5 patents. His work focuses on developing innovative solutions that enhance audio quality and reduce unwanted noise in various applications.

Latest Patents

Matsuzawa's latest patents include a noise suppressing apparatus and an echo canceler. The noise suppressing apparatus estimates the characteristics of surrounding noise when an input signal is soundless. It performs noise reduction based on the estimated results, ensuring that noise reduction occurs only when the signal noise ratio is favorable. The echo canceler is designed to adaptively control the power of speech reception voice, reducing distortion in the output from a speaker. This device includes several components, such as a power control section and filtering sections, to effectively manage echo components in speech transmission.

Career Highlights

Hitoshi Matsuzawa is currently employed at Fujitsu Corporation, where he continues to innovate and develop advanced technologies. His work has been instrumental in improving audio processing systems, making them more efficient and effective in real-world applications.

Collaborations

Matsuzawa has collaborated with notable coworkers, including Yasushi Yamazaki and Yasuji Ota. These partnerships have contributed to the advancement of technology in their respective fields.

Conclusion

Hitoshi Matsuzawa's contributions to noise suppression technology have made a significant impact in the industry. His innovative patents and ongoing work at Fujitsu Corporation highlight his dedication to improving audio quality and reducing noise.