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公开(公告)号：US10268443B2
公开(公告)日：2019-04-23
申请号：US15561819
申请日：2016-03-21
发明人： Haitao Zhen , Wentao Yang , Yongxiang Yang
摘要： A method used by a terminal to detect an earphone status and a terminal are disclosed. The method includes: disabling, by a processor, a path for outputting an audio signal to a second earphone; detecting electrical signals of a first audio output end and a third audio output end of a first earphone; and determining a frequency value of a low-frequency resonant point of the first earphone according to the electrical signals of the first audio output end and the third audio output end, and determining, according to the frequency value of the low-frequency resonant point, whether the first earphone is in an in-position state. In this way, only the electrical signals of the first audio output end and the third audio output end need to be detected, and it may be determined, according to changes of the electrical signals.
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公开(公告)号：US20230238426A1
公开(公告)日：2023-07-27
申请号：US18192070
申请日：2023-03-29
发明人： Wentao Yang , Boning Huang , Qian Zhao
CPC分类号： H01L29/0623 , H01L29/404 , H01L29/1095
摘要： A terminal structure of a power device includes a substrate and a plurality of field limiting rings disposed on a first surface of the substrate. The substrate includes a drift layer and a doped layer. The doped layer is formed through diffusion inward from the first surface of the substrate. The doped layer and the drift layer are a first conductivity type, and an impurity concentration of the doped layer is greater than an impurity concentration of the drift layer. The field limiting rings are a second conductivity type. In the terminal structure, lateral diffusion of impurities in the field limiting rings is limited through a design of the doped layer.
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公开(公告)号：US12101596B2
公开(公告)日：2024-09-24
申请号：US17778556
申请日：2020-11-11
发明人： Wentao Yang , Qiong Ruan , Shitao Chen , Yanbiao Luo , Jie Liu
CPC分类号： H04R1/227 , H04R1/025 , H04R1/028 , H04R3/00 , H04R7/12 , H04R9/025 , H04R9/06 , H04R2499/11 , H04R2499/15
摘要： Embodiments of this application provide a speaker module and a portable electronic device. The speaker module includes a first speaker module and a second speaker module. The first speaker module includes a first housing and a first speaker monomer accommodated in the first housing, and the first speaker monomer has a first diaphragm. The second speaker module includes a second housing and a second speaker monomer accommodated in the second housing, and the second speaker monomer has a second diaphragm. The first speaker module and the second speaker module are sequentially disposed in a vertical direction, and a vibration direction of the first diaphragm is opposite to a vibration direction of the second diaphragm, so that momentum variations (mv) Δ of the speaker module are offset against each other, thereby resolving a problem that a vibration feeling is strong when the speaker module works.
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公开(公告)号：US20230087724A1
公开(公告)日：2023-03-23
申请号：US17994053
申请日：2022-11-25
发明人： Boning Huang , Wentao Yang , Junhe Wang
IPC分类号： H01L23/34 , H01L29/739 , H01L27/06 , H01L23/552 , H01L29/417 , H01L29/423 , H01L23/522 , H01L23/528 , H01L29/06
摘要： The technology of this disclosure relates to an IGBT chip integrating a temperature sensor, and relates to the field of power device technologies, to improve accuracy of temperature monitoring of the IGBT chip. The IGBT chip integrating the temperature sensor includes a cell region, an emitter pad, a gate pad, a gate finger structure, a temperature sensing module, and a conductive shielding structure. The emitter pad is electrically connected to emitters of a plurality of IGBT cells. The gate finger structure is connected between the gate pad and gates of the plurality of IGBT cells. The temperature sensing module includes a temperature sensor, an anode pad, a cathode pad, and a metal lead. The temperature sensor and at least a part of the metal lead are located in the gate finger structure and are insulated from the gate finger structure.
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