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:
Feb. 01, 2022
Filed:
Mar. 27, 2020
Dell Products L. P., Round Rock, TX (US);
Chien Yu Huang, New Taipei, TW;
Cola Hung Shih, Taipei, TW;
Dell Products L.P., Round Rock, TX (US);
Abstract
In some examples, a computing device may include one or more planar speakers. Individual planar speakers may include damping material adhered to either a top surface of a front pole or a bottom surface of a cone. The damping material may reduce a noise caused by the cone hitting the front pole (e.g., when reproducing loud passages in media content) to an inaudible (e.g., 30 db or less) level. The noise may be reduced by up to 35 decibels between about 250 Hertz to about 450 Hertz. The damping material may comprise a polyurethane foam and may have a height of between about 0.1 millimeters to about 1.0 millimeters and preferably about 0.2 millimeters.