Company Filing History:
Years Active: 2010
Title: Dequn Sun: Innovator in Adaptive Signal Processing
Introduction
Dequn Sun is a notable inventor based in China, recognized for his contributions to the field of adaptive signal processing. His innovative work focuses on methods and systems that enhance the processing of subband signals using adaptive filters.
Latest Patents
Dequn Sun holds a patent titled "Method And System For Processing Subband Signals Using Adaptive Filters." This patent describes a system implemented on an oversampled WOLA filterbank, where input signals are oversampled. The system includes an adaptive filter for each subband, aimed at improving the convergence properties of the adaptive filter. Notably, the convergence property is enhanced by whitening the spectra of the oversampled subband signals and utilizing an affine projection algorithm. This system is particularly applicable to echo and noise cancellation, featuring adaptive step size control and adaptation process control using a Double-Talk detector. Additionally, it may implement non-adaptive processing to reduce uncorrelated noise and provide cross-talk resistant adaptive noise cancellation.
Career Highlights
Dequn Sun is currently employed at Emma Mixed Signal C.V., where he continues to develop innovative solutions in signal processing. His work has significantly contributed to advancements in the field, particularly in adaptive filtering techniques.
Collaborations
Throughout his career, Dequn Sun has collaborated with esteemed colleagues, including Hamid Reza Abutalebi and Robert L. Brennan. These collaborations have fostered a productive environment for innovation and research in adaptive signal processing.
Conclusion
Dequn Sun's work in adaptive signal processing exemplifies the impact of innovative thinking in technology. His contributions, particularly in the development of systems for processing subband signals, highlight the importance of adaptive filters in modern applications.