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公开(公告)号：US11727943B2
公开(公告)日：2023-08-15
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
CPC classification number: 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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公开(公告)号：US11704771B2
公开(公告)日：2023-07-18
申请号：US16759870
申请日：2017-12-01
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunchao Zhang , Shuai Chen , Zhiping Jia , Lei Miao
CPC classification number: G06T3/4053 , G06T3/4046 , H04N23/69
Abstract: An image processing method and a device, where the image processing method is performed by a terminal having a digital zoom function, and the method includes determining a target zoom magnification based on a selection input of a user, collecting a to-be-processed image, and processing the to-be-processed image using a target super-resolution convolutional neural network model to obtain a processed image corresponding to the target zoom magnification, where the target super-resolution convolutional neural network model is obtained by training a super-resolution convolutional neural network model using a high-definition training image, a low-definition training image, and a mask image.
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公开(公告)号：US20230216311A1
公开(公告)日：2023-07-06
申请号：US18008258
申请日：2021-06-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Zhaohui Tang , Xinxian Lu , Lei Miao , Wenli Wang
IPC: H02J7/00 , H04M1/72454
CPC classification number: H02J7/00034 , H02J7/007188 , H02J7/0071 , H04M1/72454
Abstract: A charging management method includes, in a charging process, determining, by an electronic device, charging behavior information; determining, by the electronic device, a charging control policy based on the charging behavior information; and performing, by the electronic device, charging according to the charging control policy to avoid the electronic device from being in a float-charging state for a long time.
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公开(公告)号：US20230014616A1
公开(公告)日：2023-01-19
申请号：US17947986
申请日：2022-09-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kenan Liu , Xinxian Lu , Lei Miao , Junjie Wang , Hongma Liu , Zhaohui Tang , Duming Wu
IPC: H02J7/00
Abstract: This application discloses a charging management and control method and an electronic device. The method includes: When connecting to an external power supply, the electronic device starts to obtain data such as a time at which the external power supply is connected, a battery level, and a charger type; the electronic device obtains first duration and second duration based on the data; in the first duration, the electronic device performs fast charging on the battery; and in the second duration, the electronic device performs slow charging on the battery, or suspends charging the battery. In this way, the electronic device performs management and control on a charging process of the battery when charging the battery, to reduce a time of continuing charging the battery in a fully charged state by the electronic device.
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245.发明申请公开(公告)号：US20220310104A1
公开(公告)日：2022-09-29
申请号：US17837558
申请日：2022-06-10
Applicant: Huawei Technologies Co., Ltd.
IPC: G10L19/008 , G10L19/02 , G10L19/032
Abstract: A multi-channel signal encoding method includes determining a downmixed signal of a first channel signal and a second channel signal, determining an initial reverberation gain parameter of the first channel signal and the second channel signal, determining a target reverberation gain parameter of the first channel signal and the second channel signal based on a correlation between the first channel signal and the downmixed signal, a correlation between the second channel signal and the downmixed signal, and the initial reverberation gain parameter, quantizing the first channel signal and the second channel signal based on the downmixed signal and the target reverberation gain parameter, and writing a quantized first channel signal and a quantized second channel signal into a bitstream.
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Patent Agency Ranking
公开(公告)号：US11430456B2
公开(公告)日：2022-08-30
申请号：US16999448
申请日：2020-08-21
Applicant: Huawei Technologies Co., Ltd.
Abstract: An encoding method, a decoding method, an encoding apparatus, a decoding apparatus, a transmitter, a receiver, and a communications system, where the 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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247.发明授权公开(公告)号：US11386907B2
公开(公告)日：2022-07-12
申请号：US16586128
申请日：2019-09-27
Applicant: Huawei Technologies Co., Ltd.
IPC: G10L19/008 , G10L19/02 , G10L19/032
Abstract: A multi-channel signal encoding method includes determining a downmixed signal of a first channel signal and a second channel signal, an initial reverberation gain parameter of the first channel signal and the second channel signal, determining a target reverberation gain parameter of the first channel signal and the second channel signal based on a correlation between the first channel signal and the downmixed signal, a correlation between the second channel signal and the downmixed signal, and the initial reverberation gain parameter, and quantizing the first channel signal and the second channel signal based on the downmixed signal and the target reverberation gain parameter, and writing a quantized first channel signal and a quantized second channel signal into a bitstream.
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公开(公告)号：US11217257B2
公开(公告)日：2022-01-04
申请号：US16818612
申请日：2020-03-13
Applicant: Huawei Technologies Co., Ltd.
Inventor： Haiting Li , Zexin Liu , Xingtao Zhang , Lei Miao
IPC: G10L19/008 , H04S3/00
Abstract: A method for encoding a multi-channel signal and an encoder, where the encoding method includes obtaining a multi-channel signal of a current frame, determining an initial inter-channel time difference (ITD) value of the current frame, controlling, based on characteristic information of the multi-channel signal, a quantity of target frames that are allowed to appear continuously, where the characteristic information includes at least one of a signal-to-noise ratio of the multi-channel signal or a peak feature of cross correlation coefficients of the multi-channel signal, and an ITD value of a previous frame of the target frame is reused as an ITD value of the target frame, determining an ITD value of the current frame based on the initial ITD value and the quantity of target frames allowed to appear continuously, and encoding the multi-channel signal based on the ITD value of the current frame.
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公开(公告)号：US20210390968A1
公开(公告)日：2021-12-16
申请号：US17458879
申请日：2021-08-27
Applicant: Huawei Technologies Co., Ltd.
IPC: G10L19/12 , G10L19/06 , G10L19/025
Abstract: A method comprises determining a first modification weight according to linear spectral frequency (LSF) differences of the current frame and LSF differences of a previous frame of the current frame when a signal characteristic of the current frame meets a preset modification condition, modifying the linear predictive parameter of the current frame according to the determined first modification weight, and coding the current frame according to the modified linear predictive parameter.
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250.发明授权公开(公告)号：US11178505B2
公开(公告)日：2021-11-16
申请号：US17033026
申请日：2020-09-25
Applicant: Huawei Technologies Co., Ltd.
IPC: H04S7/00 , G10K15/08 , G10L19/008 , G10L19/16 , G10L19/22
Abstract: A multi-channel signal decoding method includes obtaining a downmixed signal of a first channel signal and a second channel signal in a multi-channel signal, obtaining parameter indication information, obtaining a reverberation gain parameter corresponding to each of the part of subbands according to the parameter indication information; and obtaining a reconstructed first channel signal and a reconstructed second channel signal according to the downmixed signal and the reverberation gain parameter.
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