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:
Apr. 18, 2017
Filed:
Aug. 11, 2016
David R. Hall, Provo, UT (US);
Joe Fox, Spanish Fork, UT (US);
Jedediah Knight, Provo, UT (US);
Kevin Cheatham, Provo, UT (US);
David R. Hall, Provo, UT (US);
Joe Fox, Spanish Fork, UT (US);
Jedediah Knight, Provo, UT (US);
Kevin Cheatham, Provo, UT (US);
Other;
Abstract
A noise-cancelling wall is described that includes a height, a width, a depth, and first and second portions. The first portion has a first characteristic acoustic wavelength and a first thickness along the depth, and the second portion has a second characteristic acoustic wavelength and a second thickness along the depth. A relationship between the first and second portions is such that twice a difference between a ratio of the first characteristic acoustic wavelength to the first thickness, and a ratio of the second characteristic acoustic wavelength to the second thickness ranges from 0.25 above an odd integer to 0.25 below the odd integer. The first portion causes an acoustic phase shift of sound waves passing through the first portion relative to sound waves passing through the second portion, and the phase shift results in destructive acoustic interference between sound waves traveling through the wall.