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公开(公告)号：EP3018823B1
公开(公告)日：2020-05-06
申请号：EP13891744.8
申请日：2013-08-21
发明人： WANG, Kun , SU, Yongge , WANG, Laiqing
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公开(公告)号：EP3462803A1
公开(公告)日：2019-04-03
申请号：EP16906691.7
申请日：2016-06-30
IPC分类号： H04W76/10
摘要： The present invention provides a Bluetooth connection management method, a master Bluetooth device, and an apparatus. The method is applied to a scenario in which a master Bluetooth device has established a Bluetooth connection to a slave Bluetooth device. The method includes: determining, by the master Bluetooth device, whether data is being transmitted with the slave Bluetooth device by using the Bluetooth connection; and breaking, by the master Bluetooth device, the Bluetooth connection to the slave Bluetooth device when the master Bluetooth device determines that no data is being transmitted with the slave Bluetooth device by using the Bluetooth connection. A user does not need to manually break the Bluetooth connection. So that another master Bluetooth device may establish a Bluetooth connection to the slave Bluetooth device. This avoids a waste of resources.
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13.发明公开
公开(公告)号：EP3018823A1
公开(公告)日：2016-05-11
申请号：EP13891744.8
申请日：2013-08-21
发明人： WANG, Kun , SU, Yongge , WANG, Laiqing
IPC分类号： H03F1/07
CPC分类号： H03F1/0288 , H03F1/07 , H03F1/56 , H03F3/19 , H03F3/211 , H03F3/602 , H03F3/68 , H03F2200/321 , H03F2200/387 , H03F2200/451 , H03F2203/21106 , H04B1/0475 , H04B2001/0416
摘要： The present invention discloses a balanced Doherty power amplifier circuit and a radio transmitter, and relates to the field of wireless communication technologies, increasing efficiency of a power amplifier circuit. The balanced Doherty power amplifier circuit includes: a first peak amplifier, where an input end of the first peak amplifier is connected to a first input end of the circuit; a first mean amplifier, where an input end of the first mean amplifier is connected to a second input end of the circuit, and an output end of the first mean amplifier is connected to an input end of a first matching unit by using a one-fourth wavelength line; a second peak amplifier, where an input end of the second peak amplifier is connected to the first input end of the circuit; and a second mean amplifier, where an input end of the second mean amplifier is connected to the second input end of the circuit, and an output end of the second mean amplifier is connected to an input end of the second matching unit by using a one-fourth wavelength line.
摘要翻译： 本发明公开了一种平衡Doherty功放电路和无线发射机，涉及无线通信技术领域，提高功放电路的效率。 平衡Doherty功放电路包括：第一峰值放大器，第一峰值放大器的输入端连接电路的第一输入端; 第一平均放大器，所述第一平均放大器的输入端与所述电路的第二输入端连接，所述第一平均放大器的输出端通过一次谐波放大器与第一匹配单元的输入端连接， 第四波长线; 第二峰值放大器，其中第二峰值放大器的输入端连接到电路的第一输入端; 以及第二平均放大器，其中第二平均放大器的输入端连接到电路的第二输入端，并且第二平均放大器的输出端通过使用第二平均放大器的输入端连接到第二匹配单元的输入端 - 第四波长线。
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公开(公告)号：EP3002873A1
公开(公告)日：2016-04-06
申请号：EP13887733.7
申请日：2013-06-27
CPC分类号： H03F1/0288 , H03F1/3247 , H03F1/3252 , H03F3/189 , H03F3/19 , H03F3/245 , H03F2200/111 , H03F2200/165 , H03F2200/451
摘要： The present invention provides a multiband power amplification apparatus, so as to consider both efficiency improvement and a linearity requirement. The apparatus further includes a first input terminal, a second input terminal, a first adjustment module, a second adjustment module, a first adder, and a second adder, where the first input terminal receives a signal in a frequency band f 1 and then outputs the signal in the frequency band f 1 to a first digital predistortion module; the second input terminal receives a signal in a frequency band f 2 and then outputs the signal in the frequency band f 2 to a second digital predistortion module; the first adjustment module adjusts a first channel of signal and then outputs an adjusted first channel of signal to the first adder; the second adjustment module adjusts a third channel of signal and then outputs an adjusted third channel of signal to the first adder; the first adder converges the signal adjusted by the second adjustment module and the signal output by the first adjustment module and then outputs a converged signal to a first digital-to-analog converter; and the second adder converges a second channel of signal and a fourth channel of signal and then outputs a converged signal to a second digital-to-analog converter. According to the apparatus, design performance of an inter-band power amplifier can be improved, types of power amplifiers can be reduced, and costs can be reduced.
摘要翻译： 本发明提供一种多频带功率放大装置，以便考虑到效率提高和线性要求。 该装置还包括第一输入端，第二输入端，第一调整模块，第二调节模块，第一加法器和第二加法器，其中第一输入端接收频带f 1中的信号，然后输出 将频带f 1中的信号提供给第一数字预失真模块; 第二输入端子接收频带f 2中的信号，然后将频带f 2中的信号输出到第二数字预失真模块; 第一调整模块调整第一信号通道，然后将经调整的第一信号通道输出到第一加法器; 第二调整模块调整第三信号通道，然后将经调整的第三信号信号输出到第一加法器; 第一加法器收敛由第二调整模块调节的信号和由第一调整模块输出的信号，然后将会聚信号输出到第一数模转换器; 并且第二加法器收敛信号的第二信道和第四信号信道，然后将会聚信号输出到第二数模转换器。 根据该装置，可以提高带内功率放大器的设计性能，可以减少功率放大器的类型，并且可以降低成本。
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公开(公告)号：EP4395305A1
公开(公告)日：2024-07-03
申请号：EP23778019.2
申请日：2023-03-23
发明人： FENG, Junhui , ZHUANG, Naifeng , ZHANG, Chunhe , WANG, Kun , XU, Changyue
IPC分类号： H04N7/14
CPC分类号： H04N7/14 , G06V40/16 , H04L65/1016 , H04L65/1104
摘要： A communication method, apparatus, and system are provided, which relate to the field of communication technologies, to reduce bandwidth resources and port resources of a terminal that are occupied by performing face recognition in a call process. The method includes: establishing a video call media transmission channel used to transmit a call video stream between a call terminal and a peer call terminal in a video call service, where the call video stream includes video content photographed by the call terminal or the peer call terminal; receiving, from a media server, a SIP message including a face recognition request identifier, where the face recognition request identifier is for requesting to perform face recognition on a user corresponding to the call terminal; sending a response message of the SIP message to the media server, where the response message of the SIP message indicates that the user corresponding to the call terminal agrees to perform face recognition; next sending a face video stream to the media server through the video call media transmission channel, where the face video stream includes a face image of the user corresponding to the call terminal; and further receiving a face recognition result from the media server.
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公开(公告)号：EP4209174A1
公开(公告)日：2023-07-12
申请号：EP21881782.3
申请日：2021-09-15
发明人： LI, Jing , WANG, Kun , LI, Weinan , LIN, Zhongwei , YE, Jilong
IPC分类号： A61B5/1455 , A61B5/024 , A61B5/00 , G05B19/042
摘要： A method for periodically measuring blood oxygen saturation is disclosed, and applied to an electronic device. The electronic device includes a red light R path and an infrared light IR path, and the R path and the IR path each include a light emitting source and a photoelectric detector. The method includes: The electronic device receives a first instruction indicating to periodically measure blood oxygen saturation; performs, in response to the first instruction, dimming in a first blood oxygen measurement period if a user changes from a non-sleep state to a sleep state, where the dimming is used to determine that a light emitting power of the light emitting source of the R path and a light emitting power of the light emitting source of the IR path are respectively a first power and a second power; and during blood oxygen measurement time in the first blood oxygen measurement period or blood oxygen measurement time in a next blood oxygen measurement period, if the user is in the sleep state, controls the light emitting source of the R path to emit the red light at the first power and the light emitting source of the IR path to emit the infrared light at the second power, collects a red light PPG signal of the R path and an infrared light PPG signal of the IR path, to calculate the SpO2. In the method for periodically measuring blood oxygen saturation, dimming is performed only once when the user is in the sleep state, and not performed in a sleep process, so that power consumption of the electronic device can be reduced.
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17.发明公开
公开(公告)号：EP4116835A1
公开(公告)日：2023-01-11
申请号：EP20926440.7
申请日：2020-03-24
摘要： This application provides a spread spectrum clock negotiation method, and a peripheral component interconnect express device and system, to implement dynamic negotiation between a transmit end and a receive end on an SSC capability in the peripheral component interconnect express system. The method includes: A second PCIe device generates first indication information, where the first indication information is used to indicate whether the second PCIe device has a spread spectrum clock capability. The second PCIe device sends the first indication information to a first PCIe device. The first PCIe device determines, based on the first indication information, whether to perform spread spectrum clock on a reference clock of the first PCIe device.
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18.发明公开
公开(公告)号：EP3920169A1
公开(公告)日：2021-12-08
申请号：EP20759315.3
申请日：2020-02-18
发明人： WAI, Dustin Yuk Lun , WANG, Kun , WANG, Anli , WANG, Liang , CHU, Chiaching
IPC分类号： G09G3/20
摘要： An electronic device and a method for displaying an image in a multi display drive circuit system are provided. A host controller (101) splits a to-be-displayed image into at least two sub images, where each sub image and an adjacent sub image thereof include at least one column of overlapping image pixels. The host controller (101) sends the at least two sub images to at least two display drive circuits (102 and 103), so that the at least two display drive circuits (102 and 103) can jointly drive a display screen (104) to display the to-be-displayed image in an SPR manner. Alternatively, the host controller (101) outputs at least two sub images rendered in an SPR pixel format to at least two display drive circuits (102 and 103), so that the at least two display drive circuits (102 and 103) can jointly drive a display screen (104) to display the to-be-displayed image in an SPR manner. The multiple display drive circuits (102 and 103) do not need to establish a data channel to share pixel data, thereby avoiding problems such as EPC area increase, EMI, and ESD.
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公开(公告)号：EP3531722A1
公开(公告)日：2019-08-28
申请号：EP16919849.6
申请日：2016-10-31
IPC分类号： H04W4/00
摘要： An application starting method and a terminal device are provided. The method includes: detecting, by a terminal device, magnetic field strength (SI01); and starting, by the terminal device when the magnetic field strength is greater than a magnetic field strength threshold, an application corresponding to the magnetic field strength threshold (S102). Therefore, a magnetic induction sensor built in the mobile phone terminal device detects external magnetic field strength, so that a corresponding application can be quickly started. For example, the mobile phone terminal device is fastened by using an in-vehicle magnetic holder, and the magnetic field strength is detected, so that a navigation application can be quickly started, thereby implementing low-cost and simple experience.
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公开(公告)号：EP3145078A1
公开(公告)日：2017-03-22
申请号：EP14893487.0
申请日：2014-05-28
发明人： SU, Yongge , YANG, Lei , WANG, Kun
IPC分类号： H03F1/07
CPC分类号： H03F1/0288 , H03F3/189 , H03F3/211 , H03F3/245 , H03F2200/411 , H03F2203/21103 , H03F2203/21106 , H03F2203/21142
摘要： A Doherty power amplifier (100) includes: a first amplification circuit (110), including a main power amplification branch and at least one auxiliary power amplification branch, where the main power amplification branch includes a first main power amplifier (111), and each auxiliary power amplification branch of the at least one auxiliary power amplification branch includes multiple levels of auxiliary power amplifiers (112, 113); a delay device (383), connected in the main power amplification branch, and configured to compensate for a delay difference between the main power amplification branch and the at least one auxiliary power amplification branch; a combiner network (140), configured to: perform impedance inversion on the first amplification circuit (110), and couple an output end of the main power amplification branch and an output end of the at least one auxiliary power amplification branch to a load (160); and a first power divider (130), connected to an input end of the main power amplification branch and an input end of the at least one auxiliary power amplification branch, and configured to allocate an input signal of the first power divider (130) to the main power amplification branch and the at least one auxiliary power amplification branch. The technical solutions can improve efficiency of the Doherty power amplifier (100).
摘要翻译： 多赫蒂功率放大器（100）包括：第一放大电路（110），包括主功率放大分支和至少一个辅助功率放大分支，其中主功率放大分支包括第一主功率放大器（111），并且每个 所述至少一个辅助功率放大分支的辅助功率放大分支包括多级辅助功率放大器（112,113）; 延迟装置（383），连接在所述主功率放大支路中，并被配置为补偿所述主功率放大支路与所述至少一个辅助功率放大支路之间的延迟差; 组合器网络（140），被配置为：在所述第一放大电路（110）上执行阻抗反转，并且将所述主功率放大支路的输出端和所述至少一个辅助功率放大支路的输出端耦合到负载（ 160）; 以及第一功率分配器（130），连接到所述主功率放大分支的输入端和所述至少一个辅助功率放大分支的输入端，并且被配置为将所述第一功率分配器（130）的输入信号分配给 主功率放大分支和至少一个辅助功率放大分支。 技术解决方案可以提高Doherty功率放大器的效率（100）。
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