Ha-Young Yoo

Title: Ha-Young Yoo: Innovator in Speech Signal Processing

Introduction

Ha-Young Yoo is a notable inventor based in Daejeon, South Korea. He has made significant contributions to the field of speech signal processing, particularly through his innovative methods that enhance the efficiency of vocoders.

Latest Patents

Ha-Young Yoo holds a patent for a "Method for reducing pitch search time for vocoder." This invention relates to a method for receiving a speech signal, performing a recognition weighting process, synthesizing a synthetic speech signal, and calculating autocorrelation values. The process involves dividing the square of the autocorrelation with a predetermined delay by the autocorrelation with a delay of zero. By focusing on the positive peaks and skipping the negative ones, the method allows for the calculation of pitch lag and pitch filter coefficients. This innovation enables real-time implementation of CELP vocoders, significantly improving their performance.

Career Highlights

Ha-Young Yoo is affiliated with the Electronics and Telecommunications Research Institute, where he continues to advance research in telecommunications and signal processing. His work has been instrumental in developing technologies that enhance communication systems.

Collaborations

Ha-Young Yoo has collaborated with notable colleagues, including Jong-Jae Kim and Kyung-Jin Byun. Their combined expertise has contributed to the success of various projects within their research institution.

Conclusion

Ha-Young Yoo's contributions to speech signal processing exemplify the impact of innovative thinking in technology. His patent for reducing pitch search time in vocoders showcases his commitment to enhancing communication technologies.