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. 20, 2014
Filed:
Oct. 01, 2008
Christian Uhle, Nuremberg, DE;
Oliver Hellmuth, Erlangen, DE;
Juergen Herre, Buckenhof, DE;
Harald Popp, Tuchenbach, DE;
Thorsten Kastner, Stockeim/Reitsch, DE;
Christian Uhle, Nuremberg, DE;
Oliver Hellmuth, Erlangen, DE;
Juergen Herre, Buckenhof, DE;
Harald Popp, Tuchenbach, DE;
Thorsten Kastner, Stockeim/Reitsch, DE;
Abstract
In order to generate a multi-channel signal having a number of output channels greater than a number of input channels, a mixer is used for upmixing the input signal to form at least a direct channel signal and at least an ambience channel signal. A speech detector is provided for detecting a section of the input signal, the direct channel signal or the ambience channel signal in which speech portions occur. Based on this detection, a signal modifier modifies the input signal or the ambience channel signal in order to attenuate speech portions in the ambience channel signal, whereas such speech portions in the direct channel signal are attenuated to a lesser extent or not at all. A loudspeaker signal outputter then maps the direct channel signals and the ambience channel signals to loudspeaker signals which are associated to a defined reproduction scheme, such as, for example, a 5.1 scheme.