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:
Jul. 11, 2017
Filed:
Apr. 08, 2014
Dirac Research Ab, Uppsala, SE;
Lars-Johan Brannmark, Uppsala, SE;
Viktor Gunnarsson, Uppsala, SE;
DIRAC RESEARCH AB, Uppsala, SE;
Abstract
The proposed technology provides an audio decoder () configured to receive input signals representative of at least two audio input channels. The audio decoder is configured to provide direct signal paths and cross-feed signal paths () for the input signals. The audio decoder is configured to apply head shadowing filters () in the direct signal paths and cross-feed signal paths for simulating head shadowing of loudspeakers placed at different angles to an intended listener. The audio decoder is also configured to apply phase shift filters () in the direct signal paths and cross-feed signal paths for introducing a phase difference between the direct signal paths and the cross-feed signal paths representing a phase difference occurring between the ears of the intended listener. The audio decoder is further configured to sum () the direct and cross-feed signal paths to provide output signals.