This inventor holds 1 USPTO granted patent. Top assignee: Yamaha Corporation. Active years: 1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1993
Title: Tatuya Kishii: Innovator in Digital-to-Analog Conversion Technology
Introduction
Tatuya Kishii is a prominent inventor based in Hamamatsu, Japan. He is known for his contributions to digital-to-analog conversion technology, particularly through his innovative patent that enhances the performance of digital audio systems. His work has significant implications for the audio industry, particularly in improving sound quality.
Latest Patents
Tatuya Kishii holds a patent for a digital-to-analog converter with delta-sigma modulation. This digital-to-analog conversion apparatus operates in synchronization with a system clock signal that has a short period. It oversamples and delta-sigma-modulates a digital input to produce a requantized digital signal. The system clock signal is mixed with noise leaked back due to the oversampling and delta-sigma modulating operation. The system clock signal is frequency-divided by the rate of one-fourth or less to produce a divided clock signal that has a long period and is free of noise. The requantized digital signal is detected each long period and is pulse-modulated according to the detected results to generate a pulse signal with the long period. This pulse signal is low-pass-filtered to produce an analog output that has an improved signal-to-noise ratio.
Career Highlights
Tatuya Kishii is associated with Yamaha Corporation, a leading company in the audio and music industry. His work at Yamaha has allowed him to focus on developing advanced technologies that enhance audio performance. His innovative approach to digital-to-analog conversion has positioned him as a key figure in the field.
Collaborations
Tatuya Kishii has collaborated with notable colleagues, including Takayuki Kohdaka and Mituhiro Homme. These collaborations have contributed to the advancement of technology within the company and the broader audio industry.
Conclusion
Tatuya Kishii's contributions to digital-to-analog conversion technology exemplify his innovative spirit and dedication to improving audio quality. His patent and work at Yamaha Corporation highlight his significant role in the evolution of audio technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile