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公开(公告)号：US20230359022A1
公开(公告)日：2023-11-09
申请号：US18196686
申请日：2023-05-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD. , FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventor： Frank Senger , Ulrich Hofmann , Stephan Marauska , Christian Janicke , Thomas Von Wantoch , Joerg Albers , Gunnar Wille , Yong Cao
CPC classification number: G02B26/101 , G02B26/0841 , G02B26/0858 , G02B26/085
Abstract: The present disclosure provides a deflection device (100, 200, 300, 400) for use in a scanner. The deflection device (100, 200, 300, 400) includes a substrate (102, 202), a mirror (106, 206, 304, 404) and actuator means (110). The mirror (106, 206, 304, 404) arranged in a recess (104, 204, 306, 406) in the substrate (102, 202) by connector means (108) in such a way that it can rotate about at least two axes in an oscillatory manner. The actuator means (110) causes the mirror (106, 206, 304, 404) to oscillate. The actuator means (110) are arranged in one or more trenches (112A-D) in the substrate (102, 202) surrounding the recess (104, 204, 306, 406), in such a way that a change of shape of the actuator means (110) will cause a movement in the substrate (102, 202), thereby inducing oscillatory movement of the mirror (106, 206, 304, 404).
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公开(公告)号：US20210091599A1
公开(公告)日：2021-03-25
申请号：US17113328
申请日：2020-12-07
Applicant: Huawei Technologies Co., Ltd.
Inventor： Qitang Liu , Ce Liu , Weiliang Shu , Yanding Liu , Pinghua Wang , Yong Cao
Abstract: A wireless charging apparatus includes a receive end coil, a switch selection circuit, a plurality of charging circuits, and a receive end controller. An input end of the switch selection circuit is connected to an output end of the receive end coil, and an output end of the switch selection circuit is connected to an input end of each of the charging circuits.
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公开(公告)号：US20230359019A1
公开(公告)日：2023-11-09
申请号：US18196678
申请日：2023-05-12
Applicant: HUAWEI TECHNOLOGIES CO., LTD. , FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
Inventor： Thomas Knieling , Ulrich Hofmann , Stephan Marauska , Berkan Zorlubas , Fabian Schwarz , Frank Senger , Yong Cao
CPC classification number: G02B26/0858 , H03H3/0073 , H03H9/1057
Abstract: A micromechanical resonator wafer assembly includes an actuator wafer supporting an outer actuator layer. The outer actuator layer includes an oscillating part configured to be driven by an electrical drive signal. The micromechanical resonator wafer assembly further includes a device wafer mounted on top of the actuator wafer. The device wafer includes a plurality of inner actuators. Each of the inner actuators include an oscillation body configured to oscillate about one or more axes. The device wafer is physically connected to the actuator wafer such that each of the inner actuators forms with the outer actuator layer a coupled oscillation system for excitation of the oscillation body of the respective inner actuator. The micromechanical resonator wafer assembly provides external actuation of the oscillation body of each of the inner actuators by use of the outer actuator layer and hence, provides improved scan angles with fast start-up time.
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公开(公告)号：US11598956B2
公开(公告)日：2023-03-07
申请号：US17350367
申请日：2021-06-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhenlin Xie , Yong Cao , Patricia Leichliter
Abstract: An eyeball tracking system is provided, which includes: an illumination light source, configured to transmit an illumination light ray to a beam scanner; the beam scanner, configured to project the illumination light ray onto an entrance pupil optical apparatus; the entrance pupil optical apparatus, configured to reflect, reproduce, or refract the illumination light ray, so that the reflected, reproduced, or refracted illumination light ray illuminates an eyeball; a photoelectric detector, configured to: collect a receive optical power value of an eyeball reflection light ray, and send the receive optical power value to a controller; and the controller, configured to: receive the receive optical power value sent by the photoelectric detector, determine, based on the receive optical power value, an optical power reference value, and determine a current gaze direction of the eyeball based on the optical power reference value.
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Patent Agency Ranking
公开(公告)号：US11527883B2
公开(公告)日：2022-12-13
申请号：US16825061
申请日：2020-03-20
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Xinyu Liu , Yanding Liu , Ce Liu , Pinghua Wang , Yong Cao
Abstract: A battery protection apparatus power protection apparatus is configured to protect an electrochemical cell connected to a load, and includes a protection IC, a switching transistor group, and a sampling resistor. The protection IC includes two power input terminals respectively connected to positive and negative electrodes of the electrochemical cell, and an operational amplifier, where the operational amplifier includes a positive input pin, a negative input pin, and an output pin. The switching transistor group is connected between the negative electrode of the electrochemical cell and the load, and is configured to control turn-on and turn-off of a charge and discharge circuit of the electrochemical cell. The sampling detection resistor Rs is serially connected between the sampling circuit detection terminal and the output pin, where the main circuit detection terminal is connected to the positive input pin, and the sampling circuit detection terminal is connected to the negative input pin.
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公开(公告)号：US12166218B2
公开(公告)日：2024-12-10
申请号：US16717111
申请日：2019-12-17
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liang Fan , Wei Zhou , Yangxing Li , Pinghua Wang , Yong Cao
IPC: H01M50/136 , H01M50/105 , H01M50/117 , H01M50/119 , H01M50/121 , H01M50/129 , H01M50/14 , H01M50/178 , H01M50/184 , H01M50/557
Abstract: One example of a flexible battery includes an electrochemical cell layer and a wrapping layer that wraps the electrochemical cell layer. The flexible battery further includes an energy absorbing layer. The energy absorbing layer is located between the wrapping layer and upper and lower surfaces, which are opposite to each other, of the electrochemical cell layer. The energy absorbing layer includes a plurality of supporting parts that protrude outward from the upper or lower surface of the electrochemical cell layer. The plurality of supporting parts are mainly made of a foam material or rubber. For the energy absorbing layer, a lower-modulus buffering layer or an empty part may be further disposed between the electrochemical cell layer and the wrapping layer, to complement a wavy surface of the supporting part to form a flat surface, so as to meet diversified requirements of a wearable device.
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公开(公告)号：US20210328449A1
公开(公告)日：2021-10-21
申请号：US17357077
申请日：2021-06-24
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Liangyu Li , Juan Li , Pinghua Wang , Yong Cao , Yangxing Li
Abstract: In a method of charging a battery, a charging control device obtains a battery parameter that includes an electrode parameter of the battery and one or more of a structure parameter, a manufacturing process parameter, an electrical parameter, an electrolyte parameter, a diaphragm parameter, and a thermophysical parameter of the battery. The charging control device inputs the battery parameter input into a battery model represented by an ordinary differential equation to obtain a safe charging boundary value of the battery in n cycles, where n is greater than or equal to 2 and less than or equal to N, N is a cycle life of the battery, and the n cycles refer to n cycles selected from 0 to N cycles. The safe charging boundary value is a maximum charging current in which no lithium plating occurs on the battery in different states of charge SOCs and at different temperatures.
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公开(公告)号：US11067795B2
公开(公告)日：2021-07-20
申请号：US16790137
申请日：2020-02-13
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Zhenlin Xie , Yong Cao , Patricia Leichliter
Abstract: An eyeball tracking system is provided, which includes: an illumination light source, configured to transmit an illumination light ray to a beam scanner; the beam scanner, configured to project the illumination light ray onto an entrance pupil optical apparatus; the entrance pupil optical apparatus, configured to reflect, reproduce, or refract the illumination light ray, so that the reflected, reproduced, or refracted illumination light ray illuminates an eyeball; a photoelectric detector, configured to: collect a receive optical power value of an eyeball reflection light ray, and send the receive optical power value to a controller; and the controller, configured to: receive the receive optical power value sent by the photoelectric detector, determine, based on the receive optical power value, an optical power reference value, and determine a current gaze direction of the eyeball based on the optical power reference value.
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公开(公告)号：US10169290B2
公开(公告)日：2019-01-01
申请号：US15013698
申请日：2016-02-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yijun Liu , Guangjian Tian , Yong Cao
Abstract: The present invention provides a data processing method, including: acquiring historical data, where the historical data belongs to a first level and a second level, and data corresponding to the first level comprises data corresponding to the second level; generating, from the historical data, a first-granularity data set according to a first granularity, and generating, from the historical data, a second-granularity data set according to a second granularity, where the first granularity and the second granularity respectively correspond to the first level and the second level; performing modeling for a second-granularity forecasting model according to the first-granularity data set and the second-granularity data set; and performing forecasting by using the second-granularity forecasting model to obtain second-granularity forecast data. The present invention enables obtained forecast data of different granularities to be consistent.
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