Company Filing History:
Years Active: 2012
Title: Innovations of Qunli Li in Audio Technology
Introduction
Qunli Li is an accomplished inventor based in Woodinville, WA (US). He has made significant contributions to the field of audio technology, holding a total of 2 patents. His work focuses on enhancing sound rendering and bass frequency boosting techniques, which have applications in various audio systems.
Latest Patents
One of Qunli Li's latest patents is titled "Multichannel sound rendering via virtualization in a stereo loudspeaker system." This innovative speaker virtualization system provides virtual surround sound using a pair of physical loudspeakers. It processes multiple surround audio channels input through a combination of head-related transfer functions and shaped reverberation. This approach allows for widening and front/back auditory clues without requiring any interaural path cancellation. The system utilizes a 360-degree power-response head-related transfer function to achieve perceptual separation of the reverberant and direct paths. Additionally, it offers discrete reverberation for left and right rendering channels, enhancing the overall auditory experience. By eliminating interaural path cancellation, the speaker virtualization system produces a wider virtual surround sound effect, independent of head position and facing.
Another notable patent by Qunli Li involves "Bass boost filtering techniques." This patent describes various methods and tools for boosting bass frequencies in audio. The techniques can be applied separately or in combination, allowing for flexibility in audio enhancement. For instance, an integer bass boost filter can be utilized, which receives user-settable parameters and implements the filter using a coupled form structure. Furthermore, bass frequencies can be boosted through a linear combination of an input audio signal and the output of a high-pass filter.
Career Highlights
Qunli Li is currently associated with Microsoft Technology Licensing, LLC, where he continues to innovate in audio technology. His work has contributed to advancements in sound rendering and audio processing, making significant impacts in the industry.
Collaborations
Throughout his career, Qunli Li has collaborated with notable professionals in the field, including James David Johnston and Serge Smirnov. These collaborations have fostered a creative environment that encourages innovation and the development of cutting-edge audio technologies.
Conclusion
Qunli Li's contributions to audio technology through his patents and work at Microsoft Technology Licensing, LLC highlight his expertise and commitment to innovation. His advancements in sound rendering and bass boosting techniques continue to