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:
Apr. 25, 1978
Filed:
Nov. 04, 1976
Applicant:
Inventor:
Michael Anthony Gerzon, Oxford, EN;
Assignee:
National Research Development Corporation, London, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R / ;
U.S. Cl.
CPC ...
179 / ; 1791 / ; 1791 / ;
Abstract
In a sound reproduction system of the type which enables the listener to distinguish sound from sources extending over 360.degree. of azimuth, compensation is provided for the asymmetry arising when four loudspeakers are located at the corners of a non-square rectangle. Compensation is also provided for the different localization mechanisms used by a human listener at high and low frequencies. The invention is also applicable to systems which enable the listener to distinguish sounds from different heights.