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:
Jun. 09, 1992
Filed:
Jun. 15, 1990
Applicant:
Inventors:
Gary S Kendall, Evanston, IL (US);
Martin D Wilde, Chicago, IL (US);
William L Martens, Evanston, IL (US);
Assignee:
Auris Corp., Evanston, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04S / ;
U.S. Cl.
CPC ...
381-1 ; 351 17 ; 351 97 ;
Abstract
An apparatus and method for providing a sound field to an auditorium or the like is disclosed. The preferred embodiment of the apparatus utilizes random phase shifts to counter the effects of interference between sound patterns generated by different loudspeakers in a multi-loudspeaker sound reproduction system.