Location History:
- Maple, CA (1999)
- Richmond Hill, CA (2004)
Company Filing History:
Years Active: 1999-2004
Title: The Innovations of Tieying Duan
Introduction
Tieying Duan is a notable inventor based in Maple, CA. He has made significant contributions to the field of audio technology, holding a total of 4 patents. His work focuses on improving the synchronization and mixing of audio streams, which has important applications in various audio processing systems.
Latest Patents
One of Tieying Duan's latest patents is for a method of synchronization and mixing of multiple streams at different sampling rates. This invention allows for the selective access of portions of received streams in a sequence that enables independent input and output frame rates. The unique sequence used for accessing the streams is irregular concerning the output frames, ensuring that the input and output frames are synchronized to a super-frame that corresponds to a least common multiple frame in traditional systems.
Another significant patent is his audio sampling rate conversion filter. This filter converts audio signals from one sampled rate to another, utilizing a multi-coefficient subfilter that receives multiple audio signal samples from buffer memory. The filter performs convolution on these samples to generate a multi-coefficient based convolution product. Additionally, it includes a single coefficient subfilter that processes a middle sample from the buffer memory, generating a single middle coefficient based convolution product. Together, these components work to effectively convert audio signal samples to match the desired sampling rate while minimizing the number of multiplications required.
Career Highlights
Tieying Duan is currently employed at Ati Technologies Inc., where he continues to innovate in the field of audio technology. His work has been instrumental in advancing audio processing techniques, making them more efficient and effective.
Collaborations
Throughout his career, Tieying has collaborated with notable colleagues such as Vladimir F Giemborek and Peter L Rosefield. These collaborations have contributed to the development of his innovative patents and have enhanced the impact of his work in the industry.
Conclusion
Tieying Duan's contributions to audio technology through his patents demonstrate his expertise and commitment to innovation. His work continues to influence the field, paving the way for advancements in audio processing systems.