Hua Gao

Title: Hua Gao’s Patented Innovations in Audio Processing and Polymer Synthesis.

Introduction

Hua Gao is an inventor associated with Beijing, China. Her patent work spans two distinct areas: environmental noise cancellation for audio systems and high-gravity processing for butyl rubber synthesis. The supplied information lists 2 patents.

Latest Patents

System, Method and Apparatus with Environmental Noise Cancellation. This invention describes an audio receiver with at least two inputs: one receives the main audio, while the other captures audio containing more environmental noise. The system calibrates the signals to reduce input differences, then uses adaptive beamforming and speech extraction to separate the desired audio from noise. It applies nonlinear noise suppression and transforms the processed signal back into an audio sequence.

Method for Synthesis of Butyl Rubber. This invention uses a high-gravity reactor for cationic polymerization of isomonoolefin and conjugated diolefin monomers. The process is designed to intensify mixing and heat and mass transfer, while reducing reactor volume and residence time compared with conventional stirred polymerization. The resulting butyl rubber is described as having a number-average molecular weight of 80,000 to 300,000 and a molecular weight distribution index of 1.9 to 3.6.

Career Highlights

The supplied information associates Gao with Beijing University of Chemical Technology and C-Media Electronics Inc. Her listed patent subjects reflect work in both audio technology and chemical engineering.

Collaborations

Yuepeng Li and Fenghai Qiu are identified as Gao’s coworkers.

Conclusion

Hua Gao’s two listed patents address practical challenges in noise reduction and efficient butyl rubber production, illustrating the breadth of her reported inventive work.