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公开(公告)号：US11316341B2
公开(公告)日：2022-04-26
申请号：US17138571
申请日：2020-12-30
申请人： Sheng Lin
发明人： Sheng Lin
摘要： Disclosed are a surge protection power supply clamping circuit, a chip and a communication terminal. The power supply clamping circuit comprises at least one driving unit and discharging unit; the discharging units are connected to the corresponding driving units respectively, and the driving units are connected to the same time delay unit respectively; the time delay units and the discharging units are connected to a power supply voltage and a ground line respectively. The driving units or the discharging units are sequentially controlled in the power supply voltage wiring direction, so that the sum values of an equivalent conduction resistance and an equivalent metal wiring resistance of respective discharging units are the same, and therefore, the uneven conduction of an NMOS transistor caused by different metal wiring resistances due to different metal wiring lengths of the NMOS transistor of each discharging unit can be counteracted.
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2.发明授权公开(公告)号：US11258495B2
公开(公告)日：2022-02-22
申请号：US16091984
申请日：2017-04-10
申请人： Ping Liang
发明人： Dengkui Zhu , Boyu Li , Ping Liang
摘要： This invention presents a method and systems for beamforming in wireless communication comprising a base station with a plural of antennas and radio frequency transmitting and receiving chains, a plural of base band transmitting paths and base band receiving paths, and a processor that constructs a subspace for each user equipment using the principal angle information contained in partial channel state information obtained on channels associated with a part of the BS antennas, derives an analog beamforming matrix and/or an analog combining matrix from the subspaces of all the user equipment selected for communication with the base station to achieve analog beamforming, and further performs beamforming at the base band.
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3.发明授权公开(公告)号：US11115071B2
公开(公告)日：2021-09-07
申请号：US17027709
申请日：2020-09-22
申请人： Hao Li , Yunfang Bai
发明人： Hao Li , Yunfang Bai
摘要： Disclosed in the present invention are a multimode and multi-frequency radio frequency front end module, a chip, and a communication terminal. The radio frequency front end module comprises an input matching unit, an amplification unit, a first output matching module, a first switch module, a second matching module, and a control unit. The control unit is connected to the first switch module and is used for controlling a switch state of the first switch module, so as to input a radio frequency signal to one or more radio frequency transmission paths. According to the present invention, radio frequency transmission paths matching the radio frequency front end module can be selected according to different frequency bands under different modes and the control unit controls corresponding switches to be in switch-off and switch-on states, thereby implementing output of radio frequency signals at the different frequency bands under the different modes
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公开(公告)号：US11074226B2
公开(公告)日：2021-07-27
申请号：US15987883
申请日：2018-05-23
申请人： Xiaopeng He
发明人： Xiaopeng He
摘要： The present invention provides a hierarchical computing network with multiple tiers of computing nodes. Also disclosed is a method of organizing, ranking and grading a large number of computing nodes that are owned, maintained and used by a large number of different participants in geographically dispersed areas in an effort to provide computation, control, measurement and data services to a large number of users. One of the embodiments of the present disclosure provides a decentralized, distributed, cost-effective, environmental friendly, secure, reliable and scalable online file management system for a large amount of data from a large number of users and organizations.
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公开(公告)号：US10826583B2
公开(公告)日：2020-11-03
申请号：US15715122
申请日：2017-09-25
申请人： Dengkui Zhu , Ping Liang
发明人： Dengkui Zhu , Ping Liang
IPC分类号： H04B7/0456 , H04L25/03 , H04B7/0452 , H04L1/00 , H04B7/0417 , H04L25/02
摘要： This invention presents methods for estimating MU-MIMO channel information using SU-MIMO channel information to choose a modulation and channel coding appropriate for the quality of the MU-MIMO channels, for adaptively selecting MU-MIMO precoding methods based on estimations of a plural of UEs and for compensating hardware impairments in MU-MIMO precoding.
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6.发明授权公开(公告)号：US10757658B2
公开(公告)日：2020-08-25
申请号：US15576709
申请日：2016-06-28
申请人： Ping Liang
发明人： Dengkui Zhu , Boyu Li , Ping Liang
摘要： This invention presents methods for power allocation for each data stream on each transmitting antennas in MU-MIMO wireless communication systems comprising the BS computing the temporary beamforming matrix, constructing special matrices and vectors with the maximum transmitting power on each antenna, the allocated power to each data stream, the channel quality of each data stream, and the amplitude of each element of the temporary beamforming matrix, calculating the power allocated to each data stream on each antenna with the calculated special matrices and vectors, and adjusting each element of the temporary beamforming matrix to obtain the final beamforming matrix.
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公开(公告)号：US10715928B2
公开(公告)日：2020-07-14
申请号：US16270574
申请日：2019-02-07
申请人： Guanghua Wu , Xingshuo Lan , Yunlong Wang
发明人： Guanghua Wu , Xingshuo Lan , Yunlong Wang
摘要： The present invention provides a capacitive microphone having a capability of acceleration noise cancelation. The microphone includes (1) a moveable functional membrane comprising a basic functional membrane with an area Ao; and (2) a moveable reference membrane comprising a basic reference membrane. The basic reference membrane has one or more holes through the membrane's thickness, and the moveable reference membrane would be identical to the moveable functional membrane if the basic reference membrane does not have said one or more holes. The total area of said one or more holes is Ah, and a hole density HD is defined as Ah/Ao (%), and HD is in the range of e.g. from 0.012% to 2.647%.
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公开(公告)号：US10461814B2
公开(公告)日：2019-10-29
申请号：US15717872
申请日：2017-09-27
申请人： Ping Liang
发明人： Ping Liang
IPC分类号： H04W72/04 , H04B7/022 , H04W16/32 , H04L5/14 , H04B7/06 , H04B7/0456 , H04B1/10 , H04B7/0452 , H04W88/08
摘要： This invention presents a method and apparatuses for wireless networking comprising one or more BS with Nbs antennas; two or more SCs in the range of a BS where a SC has Nsc antennas, uses Nsc1≤Nsc antennas for communication with a BS and uses Nsc2≤Nsc antennas for communication with one or more UEs; at the same time a BS transmitting DL signals to K SCs using multi-user transmit BF in a frequency channel, a SC simultaneously transmitting DL signals to one or more UEs in its range using the same frequency channel; and, at the same time a BS receiving UL signals from K SCs using multi-user receive BF in a frequency channel, a SC simultaneously receiving UL signals from one or more UEs in its range using the same frequency channel. Furthermore, beamforming using antennas on the SCs is performed to reduce the inter-SC interferences.
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公开(公告)号：US10341014B2
公开(公告)日：2019-07-02
申请号：US15565679
申请日：2016-04-12
申请人： Ping Liang
发明人： Dengkui Zhu , Boyu Li , Ping Liang
IPC分类号： H04B7/204 , H04B7/0426 , H04B7/0452 , H04L5/22
摘要： This invention presents methods for MU-MIMO wireless communication systems comprising a BS with plural of antennas placed as a linear array or planar array, plural of UEs, for conducting two-level signal processing at the BS to reduce the system implementation complexity, i.e., the RF precoding/combination and the baseband precoding/detection, for the BS to obtain the second-order statistical information of the channel matrix of each UE to computing the RF precoding matrix through a much smaller number of pilots than that of the transceiving antennas at the BS, where the second-order statistical information of the channel matrix can be obtained through the uplink reference signals or downlink reference signals plus uplink feedback.
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公开(公告)号：US09799213B1
公开(公告)日：2017-10-24
申请号：US15649629
申请日：2017-07-13
CPC分类号： G07C9/00007 , E04H6/02 , G01S11/06 , G08C17/02 , G08C2201/91 , H04B17/318 , H04W12/08
摘要： Provided is an intelligent garage door switch control system and method thereof. The system includes a transmitting radio frequency device, a receiving radio frequency device, and a control circuit for operating a switch. The control circuit is configured to use a predetermined pattern detected as the basis to operate the switch. The predetermined pattern includes a first acceleration from a speed of 0 to a speed greater than 0, a first deceleration from a speed greater than 0 down to a speed of 0 thereafter, and a second acceleration from a speed of 0 to a speed greater than 0 thereafter.
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