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1.发明公开公开(公告)号：US20240146270A1
公开(公告)日：2024-05-02
申请号：US18405607
申请日：2024-01-05
Applicant: Huawei Technologies Co., Ltd.
IPC: H03F3/45
CPC classification number: H03F3/45968 , H03F3/45475 , H03F2200/261 , H03F2203/45212
Abstract: Embodiments of this application disclose a direct current offset current cancellation circuit and method, and a related device. An optical detection module included in the cancellation circuit in this application is configured to output a current signal. A first amplification module is configured to convert and amplify the current signal into a voltage signal. A first filtering module is configured to filter the voltage signal to obtain a direct current offset voltage. An acceleration module is configured to provide a target voltage for a charging module. The charging module is configured to output a cancellation voltage based on the target voltage and the direct current offset voltage. A direct current cancellation module is configured to cancel a direct current offset current in the current signal based on the cancellation voltage.
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公开(公告)号：US11906318B2
公开(公告)日：2024-02-20
申请号：US17486335
申请日：2021-09-27
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chengcheng Jia , Lei Yang , Hai Yu , Wei Huang
CPC classification number: G01C21/3617 , B60Q9/008 , B60W40/04 , B60W40/08 , B60W50/14 , G01C21/3484 , G06N20/00 , B60W2040/0818 , B60W2050/146 , B60W2540/22 , B60W2554/4046 , B60W2556/10 , B60W2556/40
Abstract: The disclosure relates to technology for a navigation system that enhances the safety of drivers using fatigue detection mapping. The navigation system accesses data sources storing map data a route for drivers of one or more first vehicles. Based on the map data, a personalized fatigue map for a driver of a second vehicle is generated based on the map data. The personalized fatigue map displays predicted driver fatigue of the driver of the second vehicle on the route. Drivers in the first and second vehicles are monitored to detect driver fatigue and a level of the driver fatigue is measured according to a calculated fatigue score. When driver fatigue is detected, a recommendation is output to the driver of the second vehicle that is based on the level of the driver fatigue. The personalized fatigue map is updated to reflect the recommendation.
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公开(公告)号：US20240015687A1
公开(公告)日：2024-01-11
申请号：US18042778
申请日：2021-07-28
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
CPC classification number: H04W64/00 , H04L5/0051
Abstract: A method includes: a first terminal sends first information to a second terminal. The first information includes a source terminal identifier and a target terminal identifier, and the second terminal determines relative location information between the second terminal and the first terminal in response to the first information. The second terminal sends second information to a third terminal. The second information includes the relative location information between the second terminal and the first terminal, the source terminal identifier, and the target terminal identifier, and the third terminal determines relative location information between the third terminal and the second terminal in response to the second information. There is a line of sight path between the first terminal and the second terminal, and there is a line of sight path between the second terminal and the third terminal.
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公开(公告)号：US20230388886A1
公开(公告)日：2023-11-30
申请号：US18027616
申请日：2021-08-04
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Huang
IPC: H04W36/30 , H04W36/00 , H04W36/14 , H04W72/0453 , H04L65/1016
CPC classification number: H04W36/30 , H04W36/0058 , H04W36/144 , H04W72/0453 , H04L65/1016 , H04W36/0088
Abstract: A network system and a terminal device are provided. The network system includes a 5G access network NG-RAN and a terminal device UE that camps on the NG-RAN. The UE is configured to measure a long term evolution LTE cell when initiating an IP multimedia subsystem IMS voice call request or receiving an IMS voice call request. The NG-RAN is configured to determine, according to configuration of the NG-RAN, whether to enable IMS voice to fall back to a 4G network from a 5G network, and to send a measurement request message to the UE when determining fallback of the IMS voice to the 4G network. The UE is further configured to: in response to the measurement request message, report to the NG-RAN a measurement report based on a measurement result of the LTE cell measurement.
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公开(公告)号：US20230103074A1
公开(公告)日：2023-03-30
申请号：US17987300
申请日：2022-11-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Kang Wang , Wei Huang , Guangli Dong
Abstract: A positioning method is applied to a terminal device that includes a positioning chip and a system on chip (SoC). The method includes receiving, by the positioning chip, a satellite signal transmitted by at least one satellite, obtaining, by the positioning chip using the SoC, a differential correction value sent by a reference station, and performing, by the positioning chip based on a carrier phase differential technology, positioning calculation using the satellite signal and the differential correction value.
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Patent Agency Ranking
公开(公告)号：US11407426B2
公开(公告)日：2022-08-09
申请号：US16874172
申请日：2020-05-14
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Fei Hua , Haishan Sun , Wei Huang
IPC: B60W50/14 , B60W10/18 , B60W30/095 , B60W40/09 , B60W40/08
Abstract: A collision warning method and a collision warning apparatus are disclosed. The method includes: obtaining a target deceleration and a target distance headway of a first vehicle by training based on historical travel data of the first vehicle, obtaining a TTC of the first vehicle and a leading vehicle, and determining, based on a comparison between the TTC and a first threshold, whether to send warning information. Because the target deceleration and the target distance headway of the first vehicle can reflect personal driving habit characteristics of a driver of the first vehicle, the TTC obtained based on the historical travel data is highly adaptable, thereby effectively resolving a problem of low warning effectiveness that is caused by a unified deceleration and a unified distance headway in the prior art.
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公开(公告)号：US20220029298A1
公开(公告)日：2022-01-27
申请号：US17311484
申请日：2019-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Huang , Ping Shi , Xiaoyin He
Abstract: Embodiments of the present disclosure provide an apparatus for antenna placement and antenna arrangement to improve space saving in an antenna system that includes a plurality of antennas. In an embodiment, a common transmission line medium provides a feeding network for one antenna of the antenna system and a signal return path for a second antenna of the antenna system.
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公开(公告)号：US10483915B2
公开(公告)日：2019-11-19
申请号：US15970400
申请日：2018-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liangfang Wang , Shengbo Wu , Chenglin Wu , Wei Huang , Xiang Feng
Abstract: The application provides a radio frequency circuit, including: a first circuit and a second circuit. The first circuit is configured to receive a first signal and a second signal; split the first signal into a third signal and a fourth signal, and split the second signal into a fifth signal and a sixth signal; adjust a phase of the fifth signal to obtain a seventh signal; and combine the seventh signal and the third signal into an eighth signal. The second circuit includes a primary power amplifier branch and a secondary power amplifier branch, and the primary power amplifier branch is configured to process the fourth signal and the sixth signal, and the secondary power amplifier branch is configured to process the eighth signal.
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公开(公告)号：US10141896B2
公开(公告)日：2018-11-27
申请号：US15581823
申请日：2017-04-28
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Huang
Abstract: A curve fitting circuit, an analog predistorter, and a radio frequency signal transmitter are disclosed. Each segmentation processing circuit in the curve fitting circuit generates a to-be-processed signal according to a intercepted part of a received signal, and generates q output signals according to the to-be-processed signal. Parts intercepted by different segmentation processing circuits are not exactly the same. Each first adder circuit in the curve fitting circuit receives one signal in the q output signals of each segmentation processing circuit, and obtains one output signal of the curve fitting circuit according to a sum of received n signals.
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公开(公告)号：US20180254744A1
公开(公告)日：2018-09-06
申请号：US15970400
申请日：2018-05-03
Applicant: Huawei Technologies Co., Ltd.
Inventor： Liangfang Wang , Shengbo Wu , Chenglin Wu , Wei Huang , Xiang Feng
Abstract: The application provides a radio frequency circuit, including: a first circuit and a second circuit. The first circuit is configured to receive a first signal and a second signal; split the first signal into a third signal and a fourth signal, and split the second signal into a fifth signal and a sixth signal; adjust a phase of the fifth signal to obtain a seventh signal; and combine the seventh signal and the third signal into an eighth signal. The second circuit includes a primary power amplifier branch and a secondary power amplifier branch, and the primary power amplifier branch is configured to process the fourth signal and the sixth signal, and the secondary power amplifier branch is configured to process the eighth signal.
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