Abstract
In a method and device for recovering the high frequency content of a wideband signal previously down-sampled during encoding and for injecting during decoding this high frequency content in an oversampled synthesized version of the wideband signal to produce a full-spectrum synthesized wideband signal a white noise generator produces a white noise sequence. Serially interconnected gain adjustment unit spectral shaper and band-pass filter spectrally shapes the white noise sequence in relation to a set of shaping parameters representative of the down-sampled wideband signal such as a voicing factor an energy scaling factor a tilt scaling factor and linear prediction filter coefficients. A signal injection circuit finally injects the spectrally-shaped white noise sequence in the over-sampled synthesized signal version to thereby produce the full-spectrum synthesized wideband signal.
Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
5G,4G,3G,2G | 06/01/2010 | ISLD-201001-018 | VOICEAGE CORPORATION | No | Family Member | ||||
5G,4G,3G,2G | 06/01/2010 | ISLD-201001-018 | VOICEAGE CORPORATION | Yes | Family Member |
Specification Information
Specification Information
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
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