The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 2017
Filed:
Sep. 19, 2014
The Hong Kong University of Science and Technology, Kowloon, Hong Kong, CN;
Zhiyu Yang, Hong Kong, CN;
Ping Sheng, Hong Kong, CN;
Min Yang, Hong Kong, CN;
Suet To Tang, Hong Kong, CN;
Guancong Ma, Hong Kong, CN;
Songwen Xiao, Hong Kong, CN;
THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Hong Kong, CN;
Abstract
Sound attenuation is performed using a sound attenuation panel using an electromagnetic or electrostatic response unit to modify resonance. The sound attenuation panel has an acoustically transparent planar, rigid frame divided into a plurality of individual cells configured for attenuating sound. In one configuration, each cell has a weight fixed to the membrane. The planar geometry of each said individual cell, the flexibility of the membrane, and the weight establish a base resonant frequency for sound attenuation. The electromagnetic or electrostatic response unit is configured to modify the resonant frequency of the cell.