Mitsuo Fujimoto

Title: Mitsuo Fujimoto: Innovator in Speech Coding Technology

Introduction

Mitsuo Fujimoto is a notable inventor based in Nara, Japan. He has made significant contributions to the field of speech coding technology, holding a total of 3 patents. His work focuses on improving the quality of reproduced speech through innovative coding systems.

Latest Patents

Fujimoto's latest patents include a groundbreaking speech coder that utilizes pitch-synchronous speech coding. This system applies multiple analyses to select a speech coding method known as pitch synchronous innovation code excited linear prediction (PSI-CELP). The speech coder is designed to enhance the representation of portions of input speech that are not adequately captured by an adaptive codebook. By reproducing speech from simple impulse trains, the system improves the quality of the output speech, aligning with the pitch cycle of the input. Additionally, his speech codec incorporates a drive sound source generating circuit that effectively generates voiced and unvoiced sound sources by combining stored signals and noise.

Career Highlights

Mitsuo Fujimoto is currently employed at Sanyo Electric Co., Ltd., where he continues to develop innovative technologies in speech processing. His expertise in this area has led to advancements that benefit various applications in communication and audio technology.

Collaborations

Fujimoto has collaborated with Toru Kitamura, contributing to the development of advanced speech coding systems. Their partnership has fostered innovation and enhanced the capabilities of speech processing technologies.

Conclusion

Mitsuo Fujimoto's contributions to speech coding technology exemplify his dedication to innovation in the field. His patents reflect a commitment to improving communication through advanced coding systems.