EP3103116
SEPIMPROVED FREQUENCY BAND EXTENSION IN AN AUDIO SIGNAL DECODER
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- Koninklijke Philips N.V.seit 8. Sept. 2017; EPA-Eintragungen enden 11. März 2022
- Orange11. Nov. 2016 – 8. Sept. 2017
The invention relates to a method for extending the frequency band of an audio signal during a decoding or improvement process, comprising a step of obtaining the decoded signal in a first frequency band, referred to as a low band. The method is such that it comprises the steps of: extracting (E402) tonal components and a surround signal from a signal from the low-band signal, combining (E403) tonal components and the surround signal by adaptive mixing using energy-level control factors to obtain an audio signal, referred to as a combined signal, extending (E401a) the low-band decoded signal before the extraction step or the combined signal after the combination step over at least one second frequency band which is higher than the first frequency band. The invention also relates to a frequency-band extension device which implements the described method and to a decoder comprising a device of this type.
Aus der internationalen Anmeldung WO2015118260
| Datum | Verfahren | Kammer | Art | Ergebnis | Parteien |
|---|---|---|---|---|---|
| 24. Sept. 2026 | UPC CFI 2244/2025 | The Hague LD | Verletzung | Gesperrt | Koninklijke Philips N.V. +9 |
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