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公开(公告)号：US20250006209A1
公开(公告)日：2025-01-02
申请号：US18884337
申请日：2024-09-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhi WANG , Zhe WANG , Haiting LI
IPC: G10L19/008 , G10L19/002
Abstract: This application disclose a multi-channel signal encoding method, a multi-channel signal decoding method, and a terminal device for processing multi-channel signal. The multi-channel signal encoding method includes: obtaining silent flag information of a multi-channel signal, where the silent flag information includes a silent enable flag and/or a silent flag; and performing multi-channel encoding processing on the multi-channel signal to obtain a transmission channel signal of each transmission channel; and generating a bitstream based on the transmission channel signal of each transmission channel and the silent flag information, where the bitstream includes the silent flag information and a multi-channel encoding result of the transmission channel signal. In this application, the transmission channel signal of each transmission channel is encoded based on the silent flag information to generate the bitstream, and a silent status of the multi-channel signal is considered, so that encoding efficiency and encoding bit resource utilization are improved.
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公开(公告)号：US20240105187A1
公开(公告)日：2024-03-28
申请号：US18521944
申请日：2023-11-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G10L19/008 , G10L19/02 , H04S7/00
CPC classification number: G10L19/008 , G10L19/02 , H04S7/30 , H04S2420/11
Abstract: Embodiments of this application disclose a three-dimensional audio signal processing method and apparatus, to implement sound field classification of a three-dimensional audio signal, to accurately identify the three-dimensional audio signal. An embodiment of this application provides a three-dimensional audio signal processing method, including: performing linear decomposition on a current frame of a three-dimensional audio signal, to obtain a linear decomposition result; obtaining, based on the linear decomposition result, a sound field classification parameter corresponding to the current frame; and determining a sound field classification result of the current frame based on the sound field classification parameter.
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公开(公告)号：US20240087578A1
公开(公告)日：2024-03-14
申请号：US18511025
申请日：2023-11-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G10L19/008 , G10L19/16 , H04S7/00
CPC classification number: G10L19/008 , G10L19/167 , H04S7/00 , H04S2420/11
Abstract: A three-dimensional audio signal coding method, apparatus, and encoder are described. The method includes, after obtaining a first correlation between a current frame of a three-dimensional audio signal and a representative virtual speaker set for a previous frame, the encoder determines whether the first correlation satisfies a reuse condition, where the first correlation is used to determine whether to reuse the representative virtual speaker set for the previous frame when the current frame is encoded. The method further encodes the current frame based on the representative virtual speaker set for the previous frame when the first correlation satisfies the reuse condition, to obtain a bitstream. A virtual speaker in the representative virtual speaker set for the previous frame is a virtual speaker used for encoding the previous frame of the three-dimensional audio signal.
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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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Patent Agency Ranking
公开(公告)号：US20230046850A1
公开(公告)日：2023-02-16
申请号：US17974851
申请日：2022-10-27
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xianbo MENG , Bingyin XIA , Zhe WANG
IPC: G10L19/08 , G10L19/008 , G10L19/032
Abstract: A linear prediction coding (LPC) parameter coding method is provided. The method includes: determining a reference LPC parameter from a plurality of LPC parameters, performing direct coding on the reference LPC parameter, and performing reference coding on a non-reference LPC parameter based on the determined LPC parameter. The method includes: obtaining a direct coding result of the reference LPC parameter and determining a residual coding result of the non-reference LPC parameter.
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公开(公告)号：US20210368335A1
公开(公告)日：2021-11-25
申请号：US16479670
申请日：2018-01-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhe WANG
Abstract: Example communication methods and devices are described to reduce possibility that account information of a contact corresponding to an electronic business card is leaked. One example method includes receiving a first electronic business card sent by a second terminal. The first electronic business card is an electronic business card of a user corresponding to a client of a third terminal or a client of the second terminal. A first identifier used to identify an account of a user corresponding to the first electronic business card is displayed based on the first electronic business card. Displaying the first user account is skipped.
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公开(公告)号：US20190082444A1
公开(公告)日：2019-03-14
申请号：US16185926
申请日：2018-11-09
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guangri CHEN , Zhenshan ZHAO , Zhe WANG
Abstract: The present invention relates to a V2V communication method, apparatus, and terminal. The method includes: receiving, by a first terminal, a first scheduling assignment SA message that is sent by a second terminal, where the first SA message includes a first pilot resource and a first diversity multiplexing mode that are used by the second terminal; determining, by the first terminal based on the first pilot resource and the first diversity multiplexing mode, a second pilot resource and a second diversity multiplexing mode that are to be used by the first terminal; and sending, by the first terminal, a data stream to a third terminal based on the second pilot resource and the second diversity multiplexing mode.
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公开(公告)号：US20240112684A1
公开(公告)日：2024-04-04
申请号：US18532085
申请日：2023-12-07
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Shuai LIU , Yuan GAO , Bingyin XIA , Bin WANG , Zhe WANG
IPC: G10L19/002 , G10L19/008 , H04S7/00
CPC classification number: G10L19/002 , G10L19/008 , H04S7/00
Abstract: Embodiments of this application disclose a three-dimensional audio signal processing method and apparatus, to implement bit allocation of a signal. The method includes: performing spatial coding on a to-be-coded three-dimensional audio signal, to obtain a transmission channel signal and transmission channel attribute information, where the transmission channel signal includes at least one virtual speaker signal group and at least one residual signal group; and determining a bit allocation ratio of the virtual speaker signal group and a bit allocation ratio of the residual signal group based on the transmission channel attribute information.
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公开(公告)号：US20240087580A1
公开(公告)日：2024-03-14
申请号：US18511191
申请日：2023-11-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G10L19/008 , G10L19/02 , G10L19/16 , H04S7/00
CPC classification number: G10L19/008 , G10L19/0204 , G10L19/167 , H04S7/00 , H04S2420/11
Abstract: This application discloses a three-dimensional audio signal coding method. After obtaining a fourth quantity of coefficients for a current frame of a three-dimensional audio signal and frequency domain feature values of the fourth quantity of coefficients, an encoder selects a third quantity of representative coefficients from the fourth quantity of coefficients based on the frequency domain feature values of the fourth quantity of coefficients, and selects a second quantity of representative virtual speakers for the current frame from a candidate virtual speaker set based on the third quantity of representative coefficients, and then encodes the current frame based on the second quantity of representative virtual speakers for the current frame to obtain a bitstream. The encoder selects the representative virtual speakers from the candidate virtual speaker set by using a small quantity of representative coefficients to represent all coefficients.
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