Hidenobu Harasaki

Title: Hidenobu Harasaki: Innovator in Audio and Picture Signal Processing

Introduction

Hidenobu Harasaki is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of audio and picture signal processing, holding a total of 4 patents. His innovative work focuses on improving the quality of audio and picture signals through advanced coding techniques.

Latest Patents

Hidenobu Harasaki's latest patents include a coding apparatus for audio and picture signals. This invention aims to enhance the qualities of audio and picture signals by adaptively distributing the code quantities of audio and picture codes while adopting variable rate audio coding. The audio/picture processing apparatus he developed manages various types of information, including audio presence, audio characteristics, audio quality, picture quality, code quantity distribution, and line capacity. A code quantity control mechanism determines the distribution of audio and picture codes, the audio coding format, and the coding rate. The outputs from the picture encoder and audio encoder are then multiplexed to transmit a combined bit stream over the network.

Another notable patent is a transmission error correction code appending device. This device receives a variable bit rate signal and transmits information bytes to a correction code appending circuit. When a timer circuit produces a time-out signal, it transmits zero bytes to the correction code appending circuit, ensuring that the information bytes and zero bytes form data groups for error correction. This innovative approach enhances the reliability of data transmission.

Career Highlights

Hidenobu Harasaki is currently employed at NEC Corporation, where he continues to push the boundaries of technology in audio and picture processing. His work has garnered attention for its practical applications in improving communication systems and multimedia technologies.

Collaborations

Hidenobu has collaborated with notable coworkers, including Yukio Endo and Ichiro Tamitani. Their combined expertise has contributed to the success of various projects within NEC Corporation.

Conclusion

Hidenobu Harasaki's contributions to audio and picture signal processing demonstrate his innovative spirit and commitment to advancing technology. His patents reflect a deep understanding of the complexities involved in multimedia communication, making him a valuable asset in the field.