Akira Sasama

Title: **Inventor Akira Sasama - A Pioneer in Speech Coding Technology**

Introduction

Akira Sasama is a notable inventor based in Fuji, Japan, recognized for his significant contributions to the field of speech signal processing. With a total of three patents, Sasama has developed innovative solutions that enhance the quality and efficiency of speech coding systems. His work has been influential in various applications, particularly in telecommunications and audio technology.

Latest Patents

Akira Sasama's latest patents reflect his cutting-edge approach to speech coding. One of his significant inventions is a **code excited linear prediction speech coding system**. This system improves the encoding of speech signals by utilizing a code vector derived from a linear prediction of a white noise residual signal, stored in a code book. Additionally, a pitch prediction vector enhances the coding system by integrating a delay corresponding to pitch frequency, which contributes to a more accurate reproduction of the original speech.

Another notable patent by Sasama is the **pitch period searching method and circuit for speech codec**. This innovative method enables efficient searching of pitch periods vital for long-term predictors used within a speech codec. The process is divided into two stages, allowing for a targeted search of probable pitch periods, thereby streamlining the encoding of speech.

Career Highlights

Akira Sasama is currently employed at Fujitsu Corporation, where he continues to push the boundaries of technological advancement in speech processing. His extensive research and development efforts have earned him recognition within the industry for his commitment to improving speech quality through innovative techniques.

Collaborations

Throughout his career, Sasama has collaborated with esteemed colleagues, including Tomohiko Taniguchi and Yoshinori Tanaka. These partnerships reflect a synergy of expertise that has likely contributed to the successful development of his patented technologies, affirming the importance of collaboration in the innovation process.

Conclusion

In conclusion, Akira Sasama's work embodies the spirit of innovation in speech coding technology. His contributions through various patents have paved the way for advancements in how speech signals are processed, enhancing communication experiences across diverse platforms. As technology continues to evolve, the impact of inventors like Sasama will undoubtedly resonate in future developments within the field.