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公开(公告)号：US12217764B2
公开(公告)日：2025-02-04
申请号：US18524654
申请日：2023-11-30
Applicant: Huawei Technologies Co., Ltd.
Abstract: An encoding method includes dividing a to-be-encoded time-domain signal into a low band signal and a high band signal, performing encoding on the low band signal to obtain a low frequency encoding parameter, performing encoding on the high band signal to obtain a high frequency encoding parameter, obtaining a synthesized high band signal, performing short-time post-filtering processing on the synthesized high band signal to obtain a short-time filtering signal, and calculating a high frequency gain based on the high band signal and the short-time filtering signal.
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2.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
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang , Zexin Liu , Haiting Li
CPC classification number: G10L19/0204 , G10L19/06 , G10L25/51 , H04L65/70 , H04L65/75 , H04S1/007 , H04S2400/03
Abstract: 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
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu Wang , Hejia Luo , Rong Li , Bin Wang , Jun Wang
IPC: H04W74/00 , H04B7/19 , H04W74/0833
CPC classification number: H04W74/004 , H04W74/008 , H04W74/0833 , H04B7/19
Abstract: 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
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang , Zexin Liu , Haiting Li
CPC classification number: G10L19/0204 , G10L19/06 , G10L25/51 , H04L65/70 , H04L65/75 , H04S1/007 , H04S2400/03
Abstract: 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
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haiting Li , Bin Wang , Zexin Liu
IPC: G10L19/008 , G10L19/02 , G10L19/08 , G10L19/00
CPC classification number: G10L19/008 , G10L19/0208 , G10L19/08 , G10L2019/0001
Abstract: 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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Patent Agency Ranking
公开(公告)号：US11935547B2
公开(公告)日：2024-03-19
申请号：US17400289
申请日：2021-08-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang , Haiting Li , Lei Miao
IPC: G10L19/008 , G10L19/22
CPC classification number: G10L19/008 , G10L19/22
Abstract: 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
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yuan Gao , Jiance Ding , Bin Wang
IPC: G10L19/008 , G10L19/002 , G10L19/16 , G10L19/02
CPC classification number: G10L19/002 , G10L19/008 , G10L19/0212 , G10L19/167
Abstract: 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
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Eyal Shlomot , Yuan Gao , Bin Wang
IPC: G10L19/008
CPC classification number: G10L19/008
Abstract: 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
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haiting Li , Zexin Liu , Bin Wang
IPC: G10L19/008 , G10L25/18 , G10L25/21 , H04S1/00
CPC classification number: G10L19/008 , G10L25/18 , G10L25/21 , H04S1/007 , H04S2420/03
Abstract: 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
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang , Haiting Li , Lei Miao
IPC: G10L19/008 , G10L19/032
CPC classification number: G10L19/008 , G10L19/032
Abstract: 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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