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. 09, 2017
Filed:
Jan. 07, 2014
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Brett G. Crockett, Brisbane, CA (US);
Christophe Chabanne, Carpentras, FR;
Mark Tuffy, Sonoma, CA (US);
Alan J. Seefeldt, San Francisco, CA (US);
C. Phillip Brown, Castro Valley, CA (US);
Patrick Turnmire, Arroyo Seco, NM (US);
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
Embodiments are directed to speakers and circuits that reflect sound off a ceiling to a listening location at a distance from a speaker. The reflected sound provides height cues to reproduce audio objects that have overhead audio components. The speaker comprises upward firing drivers to reflect sound off of the upper surface and represents a virtual height speaker. A virtual height filter based on a directional hearing model is applied to the upward-firing driver signal to improve the perception of height for audio signals transmitted by the virtual height speaker to provide optimum reproduction of the overhead reflected sound. The virtual height filter may be incorporated as part of a crossover circuit that separates the full band and sends high frequency sound to the upward-firing driver.