Abstract
SUMMARY An improved method and apparatus for digitally encoding a wideband signal, particularly, but not limited to, a speech signal for transmission or storage and synthesis of the wideband acoustic signal. This new method and apparatus for efficient modeling of the harmonic structure of the speech spectrum uses some form of low-pass filter applied to the pitch code vector, and uses higher predictive gain (ie, minimum pitch). The low pass filter that obtains the prediction error) is selected and the pitch codebook parameters associated with it are sent out.
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 |
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.
Family member:related patents or applications that share a common priority or original filing.