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:
Dec. 01, 2015
Filed:
Dec. 21, 2010
Frédéric Amadu, Paris, FR;
Thomas Esnault, Paris, FR;
Frédéric Amadu, Paris, FR;
Thomas Esnault, Paris, FR;
ARKAMYS, Paris, FR;
Abstract
A method of generating left (Ls) and right (Rs) sound signals known as 'surround' signals from a stereo sound signal composed of a left sound signal and of a right sound signal. One of the stereo signals is subtracted from the other signal with the aid of a subtraction module to obtain a single subtraction signal (LR) in which the correlated and in-phase components of the stereo signals (L, R) have been removed. A right sound signal (Rs) and a left sound signal (Ls) are generated from the subtraction signal (L−R), these signals being decorrelated with respect to one another and corresponding respectively to the right and left sound 'surround' signals. These “surround” signals (Ls, Rs) intend for broadcast on the rear channels of an acoustic system.