Sheng Wu

Title: Innovations of Sheng Wu: Pioneering Echo Cancellation and Noise Reduction

Introduction

Sheng Wu, an inventive mind based in Shanghai, China, has made significant contributions to the fields of audio technology and signal processing. With a portfolio of seven patents, he has developed advanced methods and apparatuses that enhance audio communication systems, particularly in reducing echo and optimizing noise reduction.

Latest Patents

Sheng Wu's latest innovations include a method and apparatus for reducing distortion echo, which employs K-path amplification and pre-distortion techniques. This invention meticulously processes downlink reference signals to produce K-path pre-distorted signals followed by filtering via self-adaptive filters. The apparatus calculates error signals from the target and filtering signals, enabling a minimum-value fusion process that results in a residual signal with significantly reduced echo loss, even in cases where speaker distortion is severe.

Another notable patent from Wu focuses on detecting and switching between noise reduction modes in multi-microphone mobile devices. This method analyzes audio input from two separate receivers to determine the power values of the respective signals. Depending on the comparison of these power values, the device can seamlessly transition between single and dual-microphone noise reduction modes, enhancing user experience and audio clarity.

Career Highlights

Sheng Wu has gained valuable experience working with prominent companies, notably Spreadtrum Communications and China Petroleum & Chemical Corporation. His roles in these organizations have allowed him to apply his innovative concepts in practical applications, significantly impacting the telecommunication and audio technology industries.

Collaborations

Throughout his career, Wu has collaborated with talented professionals such as Bin Jiang and Fuhuei Lin. These collaborations have contributed to the development of his groundbreaking technologies, fostering innovation through shared expertise and teamwork.

Conclusion

Sheng Wu is a distinguished inventor whose work in echo cancellation and noise reduction illustrates the significant impact of his innovations in enhancing audio technologies. His patents not only demonstrate technical proficiency but also pave the way for advancements in related fields, ensuring clearer communication in various audio environments.