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公开(公告)号：US11043225B2
公开(公告)日：2021-06-22
申请号：US16906792
申请日：2020-06-19
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang , Haiting Li , Lei Miao
IPC: 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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公开(公告)号：US20210082445A1
公开(公告)日：2021-03-18
申请号：US17104852
申请日：2020-11-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang , Zexin Liu , Haiting Li
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：US10741186B2
公开(公告)日：2020-08-11
申请号：US16145469
申请日：2018-09-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G10L19/00 , G10L19/005 , G10L19/02 , G10L21/0232 , G10L21/0388
Abstract: Embodiments of the present disclosure provide a decoding method and a decoding apparatus. The decoding method includes: in a case in which it is determined that a current frame is a lost frame, synthesizing a high frequency band signal; determining subframe gains of multiple subframes of the current frame; determining a global gain of the current frame; and adjusting, according to the global gain and the subframe gains of the multiple subframes, the synthesized high frequency band signal to obtain a high frequency band signal of the current frame. A subframe gain of the current frame is obtained according to a gradient between subframe gains of subframes previous to the current frame, so that transition before and after frame loss is more continuous, thereby reducing noise during signal reconstruction, and improving speech quality.
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公开(公告)号：US10529351B2
公开(公告)日：2020-01-07
申请号：US16396253
申请日：2019-04-26
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
IPC: G10L19/083 , G10L21/0388 , G10L21/038 , G10L19/005 , G10L19/02 , G10L25/93 , G10L19/24
Abstract: The present disclosure relates methods and apparatus for recovering a lost frame in a received audio signal. One example method includes obtaining an initial high-frequency band signal of a current lost frame in the received audio signal, calculating a ratio R, where the ratio R is a ratio of a high frequency excitation energy of a previous frame of the current lost frame to a high frequency excitation energy of the current lost frame, obtaining a global gain of the current lost frame according to the ratio R and a global gain of the previous frame of the current lost frame, and recovering a high-frequency band signal of the current lost frame according to the initial high-frequency band signal of the current lost frame and the global gain of the current lost frame.
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公开(公告)号：US10419991B2
公开(公告)日：2019-09-17
申请号：US15348171
申请日：2016-11-10
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Wang , Enbo Wang , Qiyong Zhao , Chenghui Peng
Abstract: Embodiments of the present application disclose a data transmission method and system, and a related apparatus. The method in the embodiments of the present application includes: when a network-side data transmission apparatus detects that a terminal is handed over from being served by a source base station to being served by a target base station, determining whether the source base station and the target base station have a wireless network transmission optimization (WNTO) technical capability; and completing transmission of uplink data or downlink data according to each determined WNTO technical capability of the source base station and the target base station, which effectively improves data transmission efficiency in a wireless network.
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Patent Agency Ranking
公开(公告)号：US10292253B2
公开(公告)日：2019-05-14
申请号：US15518970
申请日：2014-10-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiaoqing Li , Jinjing Jiang , Zhiguo Zhang , Bin Wang
IPC: H05K1/02 , C09J9/02 , H01L23/367 , H05K9/00 , H01L23/36 , H01L23/42 , H01L23/552
Abstract: A heat-dissipation and shielding structure, including a shielding case, a thermal pad, and a heat sink. The bottom of the shielding case is connected to a circuit board used to carry a heat emitting element, the heat sink is disposed on the top of the shielding case, the top of the shielding case is provided with an opening, the thermal pad runs through the opening, a bottom surface of the thermal pad is attached to the heat emitting element, and a top surface of the thermal pad is attached to the heat sink; and the heat-dissipation and shielding structure further includes a metal spring plate, where the metal spring plate is located on a periphery of the opening and encircles the opening, and the metal spring plate is elastically connected between the shielding case and the heat sink.
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公开(公告)号：US10292052B2
公开(公告)日：2019-05-14
申请号：US15582039
申请日：2017-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Bin Wang
Abstract: Embodiments provide an access method and device. The method includes: sending, by a user terminal, a carrier extension request to a base station when a current service resource demand is greater than a specified threshold, where the carrier extension request is used to request the base station to allocate an available spectrum resource; receiving the available spectrum resource sent by the base station. The method also includes obtaining through calculation, according to the current service resource demand and the available spectrum resource, a quantity of antenna channels that need to be enabled, and enabling an antenna channel corresponding to the quantity of antenna channels. The method also includes sending an access request to the base station, where the access request carries the antenna channel that is to be enabled by the user terminal.
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公开(公告)号：US10218856B2
公开(公告)日：2019-02-26
申请号：US15596260
申请日：2017-05-16
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Bin Wang , Bingyin Xia , Zexin Liu , Lei Miao
IPC: G06F3/16 , G10L19/008 , H04M11/06 , G10L19/16 , H04M7/00 , H04N7/15 , G10L21/038 , G10L19/24
Abstract: Present disclosure disclose a voice signal processing method, includes: receiving a first voice coded signal from a first terminal; performing voice decoding processing on the first voice coded signal to obtain a voice decoding parameter and a first voice decoded signal; performing, by using the voice decoding parameter, virtual bandwidth extension processing to obtain a bandwidth extension voice decoded signal corresponding to the first voice decoded signal; after combining the first voice decoded signal and the bandwidth extension voice decoded signal, performing voice coding processing to obtain a second voice coded signal; and sending the second voice coded signal to a second terminal that establishes a call connection to the first terminal, where a maximum frequency bandwidth supported by the first terminal is less than a maximum frequency bandwidth supported by the second terminal. Thus, Service quality of terminals that have asymmetric maximum frequency bandwidth support capabilities can be improved.
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公开(公告)号：US10210880B2
公开(公告)日：2019-02-19
申请号：US15677324
申请日：2017-08-15
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. 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, and 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. A technical solution according to the embodiments of the present application can improve an encoding and/or decoding effect.
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公开(公告)号：US20180330738A1
公开(公告)日：2018-11-15
申请号：US16043880
申请日：2018-07-24
Applicant: Huawei Technologies Co., Ltd.
IPC: G10L19/005 , G10L21/0232 , G10L25/93 , G10L19/02
CPC classification number: G10L19/005 , G10L19/0208 , G10L21/0232 , G10L25/93 , G10L2025/937
Abstract: A method for recovering lost frame in a media bitstream, where when a frame loss event occurs, a decoder obtains a synthesized high frequency band signal of a current lost frame, and recovery information related to the current lost frame, determines a global gain gradient of the current lost frame, and determines a global gain of the current lost frame according to the global gain gradient and a global gain of each frame in previous M frames of the current lost frame. A high frequency band signal of the current lost frame is obtained by adjusting the synthesized high frequency band signal of the current lost frame according to the global gain and a subframe gain of the current lost frame. Hence, the method enables natural and smooth transitions of the high frequency band signal between the frames, and attenuates noises in the high frequency band signal.
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