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. 29, 2018
Filed:
Jan. 06, 2015
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Warren Mansfield, Petaluma, CA (US);
Eugene Edward Radzik, San Leandro, CA (US);
Alan J. Seefeldt, Alameda, CA (US);
Jared Smith, San Francisco, CA (US);
C. Phillip Brown, Castro Valley, CA (US);
Michael Smithers, Kareela, AU;
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Abstract
Embodiments are directed to speakers and circuits that reflect sound off a wall surface () to a listening location at a distance from a speaker. The reflected sound () provides direct audio cues to reproduce audio objects that have direct audio components without the need for direct firing speakers. The speaker comprises sideward firing drivers () to reflect sound off of the wall surface () and represents a virtual direct speaker (). A virtual direct filter is applied to the sideward-firing driver signal to improve the perception of direct audio transmitted by the sideward firing speaker () to provide optimum reproduction of the reflected sound. The virtual direct filter may be incorporated as part of a crossover circuit that separates the full band and sends high frequency sound to the sideward-firing driver ().