This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 1999.
Company Filing History:
1 out of 834,307 Years Active: 1999
Title: Innovations of Phillippe Wu in Echo Cancellation Technology
Introduction
Phillippe Wu is a notable inventor based in Nepean, Canada. He has made significant contributions to the field of signal processing, particularly in echo cancellation technology. His innovative approach has led to the development of a unique patent that addresses challenges in this area.
Latest Patents
Wu holds a patent for a "Sub-band echo canceller using optimum wavelet packets and cross-band." This invention comprises a first wavelet decomposition block that decomposes a reference signal into multiple reference wavelet packets. Additionally, it includes a second wavelet decomposition block for decomposing an echo signal into various echo signal packets. The system features an adaptive filter bank that receives and filters the reference wavelet packets, generating filtered output packets that replicate the echo signal packets. A series of subtracters then receive and subtract the filtered output packets from the echo signal packets, producing error signals that modify the adaptive filter bank's transfer function. Finally, a wavelet reconstruction block reconstructs the error signals to form a residual signal from which the echo signal has been cancelled. This innovative design incorporates optimum wavelet filters for enhanced echo cancellation.
Career Highlights
Throughout his career, Phillippe Wu has demonstrated a commitment to advancing technology in signal processing. His work has been recognized for its practical applications and effectiveness in improving communication systems. Wu's patent reflects his expertise and innovative thinking in the field.
Collaborations
Phillippe Wu has collaborated with talented individuals such as Qu Jin and Qiang Wu. These partnerships have contributed to the development and refinement of his innovative technologies.
Conclusion
In summary, Phillippe Wu is a distinguished inventor whose work in echo cancellation technology has made a significant impact. His patent showcases his innovative approach and dedication to improving signal processing systems.