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1.发明公开公开(公告)号：US20240355343A1
公开(公告)日：2024-10-24
申请号：US18625538
申请日：2024-04-03
发明人： Bin Wang , Zexin Liu , Haiting Li
CPC分类号： G10L19/0204 , G10L19/06 , G10L25/51 , H04L65/70 , H04L65/75 , H04S1/007 , H04S2400/03
摘要： A stereo signal encoding method includes: obtaining a residual signal encoding parameter of a current frame of a stereo signal based on downmixed signal energy and residual signal energy of each of M sub-bands of the current frame, where the residual signal encoding parameter indicates whether to encode residual signals of the M sub-bands; determining whether to encode the residual signals based on the residual signal encoding parameter; and encoding the residual signals when it is determined that the residual signals need to be encoded.
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公开(公告)号：US12120731B2
公开(公告)日：2024-10-15
申请号：US17735601
申请日：2022-05-03
发明人： Xiaolu Wang , Hejia Luo , Rong Li , Bin Wang , Jun Wang
IPC分类号： H04W74/00 , H04B7/19 , H04W74/0833
CPC分类号： H04W74/004 , H04W74/008 , H04W74/0833 , H04B7/19
摘要： Example random access methods and apparatus are described. In one example, the network device obtains a first random access preamble length of a first terminal device and a second random access preamble length of a second terminal device. The network device determines a first random access parameter of the first terminal device and a second random access parameter of the second terminal device based on the first random access preamble length and the second random access preamble length. The network device sends the first random access parameter and the second random access parameter to the first terminal device and the second terminal device respectively.
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公开(公告)号：US11978463B2
公开(公告)日：2024-05-07
申请号：US17886087
申请日：2022-08-11
发明人： Bin Wang , Zexin Liu , Haiting Li
CPC分类号： G10L19/0204 , G10L19/06 , G10L25/51 , H04L65/70 , H04L65/75 , H04S1/007 , H04S2400/03
摘要： A stereo signal encoding method includes: obtaining a residual signal encoding parameter of a current frame of a stereo signal based on downmixed signal energy and residual signal energy of each of M sub-bands of the current frame, where the residual signal encoding parameter indicates whether to encode residual signals of the M sub-bands; determining whether to encode the residual signals based on the residual signal encoding parameter; and encoding the residual signals when it is determined that the residual signals need to be encoded.
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公开(公告)号：US11961526B2
公开(公告)日：2024-04-16
申请号：US17104425
申请日：2020-11-25
发明人： Haiting Li , Bin Wang , Zexin Liu
IPC分类号： G10L19/008 , G10L19/02 , G10L19/08 , G10L19/00
CPC分类号： G10L19/008 , G10L19/0208 , G10L19/08 , G10L2019/0001
摘要： A method and an apparatus for calculating a downmixed signal and a residual signal are provided. According to the method, if a first target frame (a current frame or a previous frame of the current frame) is a switching frame, a to-be-encoded downmixed signal and a to-be-encoded residual signal of the subband corresponding to the preset frequency band in the current frame is calculated based on a switch fade-in/fade-out factor of a second target frame, an initial downmixed signal and an initial residual signal of the preset frequency band.
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公开(公告)号：US11935547B2
公开(公告)日：2024-03-19
申请号：US17400289
申请日：2021-08-12
发明人： Bin Wang , Haiting Li , Lei Miao
IPC分类号： G10L19/008 , G10L19/22
CPC分类号： G10L19/008 , G10L19/22
摘要： A non-transitory computer-readable medium is provided. The non-transitory computer-readable medium having computer instructions stored therein, which when executed by one or more processors, cause the one or more processors to perform operations. The operations comprise: determining a channel combination scheme for a current frame, where the determined channel combination scheme for the current frame is one of a plurality of channel combination schemes; and determining a coding mode of the current frame based on a channel combination scheme for a previous frame and the channel combination scheme for the current frame, where the coding mode of the current frame is one of a plurality of coding modes.
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公开(公告)号：US11900950B2
公开(公告)日：2024-02-13
申请号：US17976474
申请日：2022-10-28
发明人： Yuan Gao , Jiance Ding , Bin Wang
IPC分类号： G10L19/008 , G10L19/002 , G10L19/16 , G10L19/02
CPC分类号： G10L19/002 , G10L19/008 , G10L19/0212 , G10L19/167
摘要： The present disclosure provides a bit allocation method and apparatus for an audio signal. The bit allocation method for an audio signal includes: obtaining T audio signals in a current frame, where T is a positive integer; determining a first audio signal set based on the T audio signals, where the first audio signal set includes M audio signals, M is a positive integer, T≥M; determining M priorities of the M audio signals in the first audio signal set; and performing bit allocation on the M audio signals based on the M priorities of the M audio signals.
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公开(公告)号：US11887607B2
公开(公告)日：2024-01-30
申请号：US17551451
申请日：2021-12-15
发明人： Eyal Shlomot , Yuan Gao , Bin Wang
IPC分类号： G10L19/008
CPC分类号： G10L19/008
摘要： A stereo encoding method and apparatus, and a stereo decoding method and apparatus are disclosed. The stereo encoding method includes: performing downmix processing on a left channel signal of a current frame and a right channel signal of the current frame, to obtain a primary channel signal of the current frame and a secondary channel signal of the current frame; and when determining that a frame structure similarity value falls within a frame structure similarity interval, performing differential encoding on a pitch period of the secondary channel signal by using an estimated pitch period value of the primary channel signal, to obtain a pitch period index value of the secondary channel signal, where the pitch period index value of the secondary channel signal is used to generate a to-be-sent stereo encoded bitstream.
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公开(公告)号：US11869517B2
公开(公告)日：2024-01-09
申请号：US17102190
申请日：2020-11-23
发明人： Haiting Li , Zexin Liu , Bin Wang
IPC分类号： G10L19/008 , G10L25/18 , G10L25/21 , H04S1/00
CPC分类号： G10L19/008 , G10L25/18 , G10L25/21 , H04S1/007 , H04S2420/03
摘要： This application discloses a downmixed signal calculation method and apparatus. The method includes: when a current frame or a previous frame of the current frame of a stereo signal is not a switching frame and a residual signal in the current frame or the previous frame does not need to be encoded, obtaining a second downmixed signal in the current frame and a downmix compensation factor of the current frame, correcting the second downmixed signal in the current frame based on the downmix compensation factor of the current frame, to obtain the first downmixed signal in the current frame and determining the first downmixed signal in the current frame as a downmixed signal in the current frame in a preset frequency band.
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公开(公告)号：US20230419974A1
公开(公告)日：2023-12-28
申请号：US18461641
申请日：2023-09-06
发明人： Bin Wang , Haiting Li , Lei Miao
IPC分类号： G10L19/008 , G10L19/032
CPC分类号： G10L19/008 , G10L19/032
摘要： In a stereo encoding method, a channel combination encoding solution of a current frame is first obtained, and then a quantized channel combination ratio factor of the current frame and an encoding index of the quantized channel combination ratio factor are obtained based on the obtained channel combination encoding solution, so that an obtained primary channel signal and secondary channel signal of the current frame meet a characteristic of the current frame.
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公开(公告)号：US20230238010A1
公开(公告)日：2023-07-27
申请号：US18157518
申请日：2023-01-20
IPC分类号： G10L19/02 , G10L19/002
CPC分类号： G10L19/0204 , G10L19/002 , G10L19/02
摘要： A signal processing method and device includes obtaining spectral coefficients of a current frame of an audio signal, in which N sub-bands of the current frame comprises at least one of the spectral coefficients. A total energy of M successive sub-bands of the N sub-bands, a total energy of K successive sub-bands of the N sub-bands, and an energy of a first sub-band are obtained to determine whether to modify original envelope values of the M sub-bands. When the original envelope values of the M sub-bands are modified, encoding bits are allocated to each of the N sub-bands according to the modified envelope values of the M sub-bands.
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