Abstract
An embodiment of the present invention provides a method and a decoding apparatus for predicting a bandwidth extended frequency band signal. The method includes demultiplexing a received bit stream and decoding the demultiplexed bit stream to obtain a frequency domain signal; Determining if the highest frequency bin to which the bits of the frequency domain signal are allocated is lower than a predetermined starting frequency bin of the bandwidth extension frequency band; If the highest frequency bin to which the bit is allocated is lower than a predetermined starting frequency bin of the bandwidth extension frequency band, an excitation signal within a predetermined frequency band range of the frequency domain signal and a preset Predicting an excitation signal of the bandwidth extension frequency band according to a start frequency bin; If the highest frequency bin to which the bit is allocated is higher than or equal to a predetermined starting frequency bin of the bandwidth extension frequency band, an excitation signal within a predetermined frequency band range of the frequency domain signal, And predicting an excitation signal of the bandwidth extension frequency band according to the highest frequency bin to which the bit is assigned; And predicting the bandwidth extension frequency band signal according to an excitation signal of the predicted bandwidth extension frequency band and a frequency envelope of the bandwidth extension frequency band. The technical solution of the embodiment of the present invention can effectively guarantee the continuity of the predicted excitation signal of the bandwidth extension frequency band between the previous frame and the following frame so that the voice quality of the restored bandwidth extension frequency band signal can be guaranteed have.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
| 4G,3G | 09/12/2014 | ISLD-201412-013 | HUAWEI | No | Family Member | ||||
| Not Available | 09/12/2014 | ISLD-201412-013 | HUAWEI | No | Family Member | ||||
| 4G,3G | 23/10/2016 | ISLD-201701-002 | HUAWEI | No | Family Member | ||||
| 5G | 19/03/2020 | ISLD-202003-035 | HUAWEI |
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Specification Information
Specification Information
Technologies
Family Information
| All Granted Patents In Patent Family : | ---- |
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|---|---|---|---|---|---|---|---|---|---|---|
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| WO2014117484A1 | 4G,3G | 09/12/2014 | ISLD-201412-013 | HUAWEI | Yes | Basis Patent | ||||
| WO2014117484A1 | Not Available | 09/12/2014 | ISLD-201412-013 | HUAWEI | Yes | Basis Patent | ||||
| WO2014117484A1 | 4G,3G | 23/10/2016 | ISLD-201701-002 | HUAWEI | Yes | Basis Patent | ||||
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Yes | Family Member | |||
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Yes | Basis Patent | |||
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Yes | Basis Patent | |||
| EP2940685A1 | 4G,3G | 09/12/2014 | ISLD-201412-013 | HUAWEI | No | Family Member | ||||
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S2
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Yes | Family Member | |||
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Yes | Family Member | |||
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S2
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Yes | Family Member | |||
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S2
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Yes | Family Member | |||
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S2
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Yes | Family Member | |||
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| JP2016507781A | 4G,3G | 23/10/2016 | ISLD-201701-002 | HUAWEI | No | Family Member | ||||
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S1
S2
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Yes | Family Member | |||
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S1
S2
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Yes | Family Member | |||
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| US2016247513A1 | Not Available | 09/12/2014 | ISLD-201412-013 | HUAWEI | No | Family Member | ||||
| US2016247513A1 | 4G,3G | 23/10/2016 | ISLD-201701-002 | HUAWEI | No | Family Member | ||||
| US2016247513A1 | 5G | 19/03/2020 | ISLD-202003-035 | HUAWEI |
S1
S2
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Yes | Family Member | |||
| US9875749B2 | 4G,3G | 09/12/2014 | ISLD-201412-013 | HUAWEI | No | Family Member | ||||
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| US9875749B2 | 4G,3G | 23/10/2016 | ISLD-201701-002 | HUAWEI | No | Family Member | ||||
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S1
S2
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Yes | Family Member | |||
| US2018122393A1 | 4G,3G | 09/12/2014 | ISLD-201412-013 | HUAWEI | No | Family Member | ||||
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| US2018122393A1 | 4G,3G | 23/10/2016 | ISLD-201701-002 | HUAWEI | No | Family Member | ||||
| US2018122393A1 | 5G | 19/03/2020 | ISLD-202003-035 | HUAWEI |
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Yes | Family Member | |||
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Yes | Family Member | |||
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
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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.