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公开(公告)号：EP4395306A1
公开(公告)日：2024-07-03
申请号：EP23778020.0
申请日：2023-03-23
发明人： XU, Changyue , FENG, Junhui , ZHANG, Chunhe , ZHUANG, Naifeng , WANG, Kun
IPC分类号： H04N7/14
CPC分类号： H04N7/14
摘要： A communication method, an apparatus, and a system are provided and relate to the field of communication technologies, to perform whiteboard interaction during a call. A call terminal transmits a call video stream between the call terminal and a peer call terminal through an established video call media transmission channel; detects a first touch operation of a first user on a first whiteboard picture presented on a call interface, and generates first touch trace data used to describe a first touch trace generated by the first touch operation; sends the first touch trace data to a media server; receives second whiteboard media data from the media server through the video call media transmission channel, and presents, on the call interface based on the second whiteboard media data, a second whiteboard picture including the first touch trace and a second touch trace, where the second touch trace is a touch trace generated by performing, by a second user, a second touch operation on a whiteboard picture presented on a call interface of the peer call terminal.
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公开(公告)号：EP4283893A1
公开(公告)日：2023-11-29
申请号：EP21929476.6
申请日：2021-03-08
IPC分类号： H04L1/00
摘要： This application provides a data processing method, a device, and a data transmission system, and relates to the field of communication technologies. The method includes: A first device determines a first mode from a plurality of error detection and correction modes based on an obtained first status parameter of a data link. Then, the first device may indicate a second device to use the first mode for encoding, and the first device may use the first mode for decoding, thereby implementing error detection and correction of transmitted data. In the method provided in this embodiment of this application, the first device and the second device may support a plurality of error detection and correction modes, and the first device may determine a used error detection and correction mode based on a status parameter of the data link, so that application of an error detection and correction technology is more flexible. This application is used for data processing and transmission.
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公开(公告)号：EP4207694A1
公开(公告)日：2023-07-05
申请号：EP21871321.2
申请日：2021-09-14
发明人： TANG, Xin , WANG, Kun , LI, Pengpeng , WANG, Zhenyu , WU, Tong
IPC分类号： H04L25/02
摘要： This application provides a communication method and a communication apparatus. The method is applied to a software baseband architecture receiver, and the method includes: receiving a first signal; allocating a processing resource to the first signal based on parameter information of the first signal, where the processing resource includes a processing algorithm, and the processing algorithm includes an algorithm for channel estimation CE and/or multiple-input multiple-output MIMO detection; and performing CE and MIMO detection on the first signal based on the processing resource. The corresponding processing resource is allocated to the first signal based on the parameter information of the first signal, so that a receiver functional module in a chip may fully utilize flexibility of a software baseband architecture, and different requirements of various signals can be targetedly met.
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公开(公告)号：EP4270205A1
公开(公告)日：2023-11-01
申请号：EP22742257.3
申请日：2022-01-21
IPC分类号： G06F13/40
摘要： This application relates to a link width adjustment method and apparatus. The method includes: sending, to a second-end apparatus through a first channel, a first packet indicating to perform link width switching; receiving a second packet that is returned by the second-end apparatus and that indicates that the link width switching is agreed on; sending, to the second-end apparatus through a second channel, a first bit stream used to train the second channel for data communication; and sending a data stream to the second-end apparatus through the first channel and the second channel. According to the link width adjustment method and apparatus provided in embodiments of this application, a link width can be adjusted when data stream transmission is ensured.
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公开(公告)号：EP3145078B1
公开(公告)日：2018-09-19
申请号：EP14893487.0
申请日：2014-05-28
发明人： SU, Yongge , YANG, Lei , WANG, Kun
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).
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公开(公告)号：EP3002873B1
公开(公告)日：2017-12-27
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.
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公开(公告)号：EP4395304A1
公开(公告)日：2024-07-03
申请号：EP23778017.6
申请日：2023-03-23
发明人： HUANG, Shunyan , FENG, Junhui , ZHANG, Chunhe , ZHUANG, Naifeng , WANG, Kun , XU, Changyue
IPC分类号： H04N7/14
CPC分类号： H04N7/14
摘要： A communication method, an apparatus, and a system are provided, and relate to the field of communication technologies, so that a user can present, to a peer party in a call process, a mark made by the user on a target object in a video picture. The method includes: establishing a video call media transmission channel, and transmitting a call video stream between a call terminal and a peer call terminal through the video call media transmission channel, to implement a video call service between the call terminal and the peer call terminal; presenting a first video picture on a call screen of the call terminal based on target media data; detecting a mark operation performed by a user on a target object in the first video picture, and generating marking trace data for describing a marking trace generated by the mark operation; and transmitting marking media data to the peer call terminal through the video call media transmission channel, so that the peer call terminal presents a second video picture on a call screen of the peer call terminal based on the marking media data, where the second video picture includes the marking trace.
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公开(公告)号：EP4228214A1
公开(公告)日：2023-08-16
申请号：EP21890983.6
申请日：2021-10-29
发明人： WANG, Kun , XIONG, Xia , TANG, Xin , WEN, Jini
IPC分类号： H04L25/02
摘要： This application provides a signal transmission method and apparatus. The method includes: A collaboration device receives a synchronization trigger frame delivered by a central device; the collaboration device obtains information about a time domain offset and/or information about a frequency domain offset; and the collaboration device sends a signal based on the synchronization trigger frame and the information about the time domain offset and/or the information about the frequency domain offset by using a corresponding time domain resource and a corresponding frequency domain resource. In this way, a plurality of collaboration devices send different time domain resources and/or frequency domain resources to a same terminal, and an interfering signal in channel estimation can be removed. This improves precision of the channel estimation and noise estimation at a receiving end, and improves demodulation performance at the receiving end and entire-network throughput.
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9.发明公开
公开(公告)号：EP4068256A1
公开(公告)日：2022-10-05
申请号：EP20913810.6
申请日：2020-12-18
发明人： WAI, Dustin Yuk Lun , WANG, Kun , WANG, Anli , WANG, Liang , CHU, Chiaching , SUN, Jialiang
IPC分类号： G09G3/20
摘要： Embodiments of this application provide a display driver, a control method, a display control circuit system, and an electronic device, and relate to the field of electronics and communications technologies, to reduce, in a command mode, a probability that a screen stalling phenomenon occurs during display of a dynamic image and reduce power consumption of a display. A timing control unit in the display driver sends one first pulse of a tearing effect signal every a first preset time T1. The timing control unit sends S second pulses of the tearing effect signal when a transceiver unit does not receive an N th frame of display data within a preset time, where the S second pulses of the tearing effect signal are used to prolong duration of the N th frame by a second preset time T2, and indicate a host to output the generated N th frame of display data in an (N+1) th frame based on an S th second pulse of the tearing effect signal. The processing unit receives the N th frame of display data in the (N+1) th frame, and controls, based on the N th frame of display data, the display to display an N th frame of image.
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10.发明公开
公开(公告)号：EP3886368A1
公开(公告)日：2021-09-29
申请号：EP21165035.3
申请日：2021-03-25
发明人： FAN, Duoliang , LEI, Haoran , HU, Yinliang , SHEN, Li , WANG, Kun
摘要： A control device, an execution device, a device management method, and a device management system are provided, and are applied to the field of network technologies. The control device includes: a network communications interface, configured to connect to an execution device through a network, where the execution device is a network communications device; and a processor, configured to send a device management protocol packet through the network communications interface, where the device management protocol packet indicates an operation performed on a register in a first chip in the execution device and/or the device management protocol packet indicates that a pin of a second chip in the execution device is set to a status indicated by the device management protocol packet. In this application, the control device is responsible for controlling a part such as a bus or a chip of the execution device or a pin of the chip. Therefore, when the execution device is updated, only the control device needs to be upgraded, thereby reducing maintenance costs.
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