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公开(公告)号：US20240079017A1
公开(公告)日：2024-03-07
申请号：US18509653
申请日：2023-11-15
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G10L19/008 , G10L19/16 , H04S7/00
CPC classification number: G10L19/008 , G10L19/167 , H04S7/302 , H04S2400/11 , H04S2420/11
Abstract: A three-dimensional audio signal encoding method and apparatus, and an encoder are provided, and relate to the multimedia field. The method includes: The encoder obtains a first quantity of current-frame initial vote values for a current frame of a three-dimensional audio signal. Then, the encoder obtains, based on the first quantity of current-frame initial vote values and a sixth quantity of previous-frame final vote values, a seventh quantity of current-frame final vote values that are of a seventh quantity of virtual loudspeakers and that correspond to the current frame. Further, the encoder selects a second quantity of current-frame representative virtual loudspeakers from the seventh quantity of virtual loudspeakers based on the seventh quantity of current-frame final vote values. The encoder encodes the current frame based on the second quantity of current-frame representative virtual loudspeakers, to obtain a bitstream.
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公开(公告)号：US20230412981A1
公开(公告)日：2023-12-21
申请号：US18241698
申请日：2023-09-01
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: H04R5/02
CPC classification number: H04R5/02 , H04S2420/11 , H04R2205/024
Abstract: This application provides a method and an apparatus for determining a virtual speaker set. The method for determining a virtual speaker set includes: determining a target virtual speaker from F preset virtual speakers based on a to-be-processed audio signal, where each of the F virtual speakers corresponds to S virtual speakers, F is a positive integer, and S is a positive integer greater than 1; and obtaining, from a preset virtual speaker distribution table, respective position information of S virtual speakers corresponding to the target virtual speaker, where the virtual speaker distribution table includes position information of K virtual speakers, the position information includes an elevation angle index and an azimuth angle index, K is a positive integer greater than 1, F≤K, and F×S≥K. This application can improve audio signal playback effect.
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公开(公告)号：US20230352033A1
公开(公告)日：2023-11-02
申请号：US18339062
申请日：2023-06-21
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haiting LI , Bin WANG , Lei MIAO
IPC: G10L19/008 , G10L19/22
CPC classification number: G10L19/008 , G10L19/22
Abstract: A time-domain stereo parameter encoding method and a related product are provided. The time-domain stereo parameter encoding method includes: determining a channel combination scheme for a current frame; determining a time-domain stereo parameter of the current frame based on the channel combination scheme for the current frame; and encoding the determined time-domain stereo parameter of the current frame, where the time-domain stereo parameter includes at least one of a channel combination ratio factor or an inter-channel time difference.
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公开(公告)号：US20230306972A1
公开(公告)日：2023-09-28
申请号：US18193922
申请日：2023-03-31
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haiting LI , Bin WANG , Lei MIAO
IPC: G10L19/008 , G10L19/20 , G10L19/22
CPC classification number: G10L19/008 , G10L19/20 , G10L19/22 , H04S1/007
Abstract: An audio encoding and decoding method and related apparatus are provided. The audio encoding method may include determining a coding mode of a current frame. When determining that the coding mode of the current frame is an anticorrelated signal coding mode, the method further includes performing time-domain downmix processing on left and right channel signals in the current frame by using a time-domain downmix processing manner corresponding to the anticorrelated signal coding mode, to obtain a primary channel signal and a secondary channel signal, where the time-domain downmix processing manner corresponds to the anticorrelated signal coding mode is a time-domain downmix processing manner corresponding to an anticorrelated signal channel combination scheme, and the anticorrelated signal channel combination scheme is a channel combination scheme corresponding to a near out of phase signal. The method may also include encoding the obtained primary channel signal and secondary channel signal in the current frame.
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公开(公告)号：US20230162539A1
公开(公告)日：2023-05-25
申请号：US18145557
申请日：2022-12-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Dong LI , Bin WANG , Wulong LIU , Yuzheng ZHUANG
CPC classification number: G07C5/02 , B60W50/06 , G06N7/01 , B60W2050/0018
Abstract: The present disclosure relates to driving decision-making methods, apparatuses, and chips. One example method includes building a Monte Carlo tree based on a current driving environment state, where the Monte Carlo tree includes a root node and N-1 non-root nodes, each node represents one driving environment state, and a driving environment state represented by any non-root node is predicted by a stochastic model of driving environments. Based on at least one of an access count or a value function of each node in the Monte Carlo tree, a node sequence that starts from the root node and ends at a leaf node is determined, and a driving action sequence is determined based on a driving action corresponding to each node in the node sequence.
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Patent Agency Ranking
公开(公告)号：US20220330350A1
公开(公告)日：2022-10-13
申请号：US17832880
申请日：2022-06-06
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xiaolu WANG , Hejia LUO , Jianwei ZHOU , Chenlei XU , Bin WANG , Rong LI
Abstract: The present disclosure relates to random access preamble transmission methods, apparatuses, and storage mediums. In one example method, a terminal device determines, based on a target sub-coverage area to which the terminal device belongs in a preset coverage area of a network device, target random access preamble format information corresponding to the target sub-coverage area. Then, the terminal device sends, to the network device on a target time-frequency resource indicated by target random access preamble time-frequency resource information corresponding to the target random access preamble format information, a random access preamble corresponding to the target random access preamble format information.
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公开(公告)号：US20210409311A1
公开(公告)日：2021-12-30
申请号：US17357756
申请日：2021-06-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin WANG , Jianxi DENG , Yihong LI , Sheng FANG , Mingpu WANG , Gang WENG
IPC: H04L12/703 , H04L12/723 , H04L12/823 , H04L12/751 , H04L12/707
Abstract: A packet loss processing method and a network device are provided. The method includes: A first node obtains a first forwarding label of a first packet, where the first packet is a discarded packet. The first node determines, based on the first forwarding label, that the first node does not have a LSP corresponding to the first forwarding label. The first node sends a first message to a second node, where the first message includes the first forwarding label, and the first message is used to indicate that the first node does not have the LSP corresponding to the first forwarding label. The second node may be, for example, a peer node of the first node. The first node sends the message to the peer node, to indicate that the first node does not have the LSP corresponding to the forwarding label.
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公开(公告)号：US20210250723A1
公开(公告)日：2021-08-12
申请号：US17240655
申请日：2021-04-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin WANG , Zexin LIU , Risheng XIA
Abstract: This application provides an audio rendering method, including: obtaining a to-be-rendered BRIR signal, where an elevation angle corresponding to the to-be-rendered BRIR signal is 0 degrees; obtaining a direct sound signal based on the to-be-rendered BRIR signal; correcting, based on a target elevation angle, a frequency-domain signal corresponding to the direct sound signal, to obtain a frequency-domain signal corresponding to the target elevation angle; obtaining a time-domain signal based on the frequency-domain signal of the target elevation angle; and superposing the time-domain signal on a signal that is in the to-be-rendered BRIR signal and that is in a second time period after a first time period, to obtain a BRIR signal of the target elevation angle.
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公开(公告)号：US20200175999A1
公开(公告)日：2020-06-04
申请号：US16784759
申请日：2020-02-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin WANG , Haiting LI , Lei MIAO
IPC: G10L19/008 , G10L19/22
Abstract: An audio encoding and decoding method and a related apparatus are provided. The audio encoding method includes: determining a channel combination scheme for a current frame; when the channel combination scheme for the current frame is different from a channel combination scheme for a previous frame, performing segmented time-domain downmix processing on left and right channel signals in the current frame based on the channel combination scheme for the current frame and the channel combination scheme for the previous frame, to obtain a primary channel signal and a secondary channel signal in the current frame; and encoding the obtained primary channel signal and secondary channel signal in the current frame.
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公开(公告)号：US20200175998A1
公开(公告)日：2020-06-04
申请号：US16784539
申请日：2020-02-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Haiting LI , Bin WANG , Lei MIAO
IPC: G10L19/008 , G10L19/22
Abstract: The present disclosure relates to time-domain stereo parameter encoding methods and apparatus. One example time-domain stereo parameter encoding method includes determining a channel combination scheme for a current frame, determining a time-domain stereo parameter of the current frame based on the channel combination scheme for the current frame, and encoding the determined time-domain stereo parameter of the current frame, where the time-domain stereo parameter includes at least one of a channel combination ratio factor or an inter-channel time difference.
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