Company Filing History:
9 out of 607 
1 out of 125 
Years Active: 2013-2021
Title: **Innovative Contributions of Guancong Ma in Acoustic Engineering**
Introduction
Guancong Ma is a notable inventor based in Hong Kong, known for his significant contributions to the field of acoustic engineering. With a total of nine patents to his name, he has focused on innovations that enhance sound absorption and reduce noise pollution. His work stands out for integrating both passive and active sound control technologies.
Latest Patents
Guancong Ma's latest patents include two groundbreaking inventions:
1. **Low Frequency Acoustic Absorption and Soft Boundary Effect with Frequency-Discretized Active Panels** - This invention features an active sound barrier that incorporates at least one passive sound absorber at or near a boundary location. It utilizes a microphone to process sound outputs, which are filtered through a frequency division module. This enables the activation of speakers or output transducers at specific frequencies, working in concert with passive sound absorbers to mitigate noise across a broad frequency range. The system offers an electrically switchable soft boundary effect.
2. **Vibration Damped Sound Shield** - This patent describes a sound absorption panel constructed from an acoustically thin sheet, which forms an acoustic/vibrational energy absorption metamaterial structure. A series of dampers are affixed to this thin sheet, where some dampers include a support and a flexible membrane, attached with masses or platelets. This configuration aids in absorbing energy from sound transmission and vibrations across the sheet, thereby enhancing sound reduction capabilities.
Career Highlights
Guancong Ma has had an outstanding academic and professional career. He has worked with prestigious research institutions, including the Hong Kong University of Science and Technology and Hong Kong Baptist University. His dedication to research and innovation has led to the development of important technologies aimed at improving acoustic environments.
Collaborations
Throughout his career, Guancong Ma has collaborated with notable colleagues, including Ping Sheng and Zhiyu Yang. These partnerships have facilitated the advancement of research initiatives and innovations in acoustic engineering, boosting the impact of their collective expertise in the field.
Conclusion
In summary, Guancong Ma's contributions to acoustic engineering through his patents and collaborative efforts have significantly advanced the understanding and implementation of sound absorption technologies. His work not only addresses the challenges of noise pollution but also paves the way for future innovations in the field.