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:
Sep. 30, 2025
Filed:
Mar. 10, 2022
Koninklijke Philips N.v., Eindhoven, NL;
Jeroen Gerardus Henricus Koppens, Nederweert, NL;
Sam Martin Jelfs, Valkenswaard, NL;
Patrick Kechichian, Eindhoven, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
An audio apparatus for generating a flutter echo audio signal comprises a receiver () arranged to receive room metadata indicative of properties of a room. The room metadata may e.g. indicate dimensions of the room and/or acoustic reflection data for boundaries of the room. An estimator () determines a flutter echo estimate for the room in response to the room metadata where the flutter echo estimate is indicative of a level of a flutter echo in the room. A signal generator () includes a feedback delay network comprising a plurality of feedback loops. The signal generator () is arranged to generate the flutter echo audio signal from output signals of a set of feedback loops of the plurality of feedback loops being fed an audio source signal. An adapter () adapts a first parameter for a first feedback loop of the set of feedback loops in response to the flutter echo estimate.