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. 02, 2021
Filed:
Aug. 21, 2019
Applicants:
Acer Incorporated, New Taipei, TW;
Starvr Corporation, New Taipei, TW;
Inventors:
Assignees:
ACER INCORPORATED, New Taipei, TW;
STARVR CORPORATION, New Taipei, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 1/34 (2006.01); H04R 1/02 (2006.01); H04R 1/28 (2006.01); H04R 7/16 (2006.01);
U.S. Cl.
CPC ...
H04R 1/345 (2013.01); H04R 1/025 (2013.01); H04R 1/2811 (2013.01); H04R 7/16 (2013.01); H04R 2201/02 (2013.01); H04R 2499/15 (2013.01);
Abstract
A head-mounted display apparatus and an acoustic device disposed in the head-mounted display apparatus are provided. The acoustic device includes a speaker, a resonance box, and a waveguide. The resonance box is connected to the speaker. The waveguide is connected to the resonance box. The volume of the waveguide is greater than twice the volume of the speaker, and the length of the waveguide is greater than 5 times the thickness of the speaker.