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. 07, 2019
Filed:
Feb. 18, 2015
Dolby International Ab, Amsterdam, NL;
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Jyri Tapani Pakarinen, Solna, SE;
Michael Smithers, Kareela, AU;
Juan Felix Torres, Milsons Point, AU;
Heiko Purnhagen, Sundbyberg, SE;
Dolby Laboratories Licensing Corporation, San Francisco, CA (US);
Dolby International AB, Amsterdam Zuidoost, NL;
Abstract
A device () and a method are proposed for tuning a frequency-dependent attenuation stage (), with the purpose of suppressing non-linear distortion occurring in an audio reproduction system () associated with the frequency-dependent attenuation stage. The device comprises a receiving section () adapted to receive data representing an output acoustic signal () from the audio reproduction system, recorded upon excitation of the audio reproduction system by a predetermined input data signal ()first distortion detection section () adapted to detect presence of non-linear distortion based on the received data and to apply psycho-acoustic compensation to the detected non-linear distortion and a control section () adapted to determine, based on the psycho-acoustically compensated non-linear distortion, control information () suitable for controlling the frequency-dependent attenuation stage.