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公开(公告)号：US11765040B2
公开(公告)日：2023-09-19
申请号：US17521968
申请日：2021-11-09
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Ramanuja Vedantham , Kumaran Vijayasankar , Xiaolin Lu
Abstract: An algorithm for the promotion of terminal nodes to switch nodes in a PLC network reduces overall network overhead and collisions, while ensuring the appropriate selection of a switch node and minimizing the number of levels in a PLC network. It also ensures that the terminal nodes with appropriate signal-to-noise ratios (SNRs) are promoted. It is desirable to have a network with fewer levels. The disclosed approach favors the nodes that are closer to the DC to promote them as switch nodes. This is achieved by waiting for a smaller number of PNPDUs for a node that is closer to the DC in comparison to a node that is farther away from the DC.
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公开(公告)号：US20190222021A1
公开(公告)日：2019-07-18
申请号：US16360343
申请日：2019-03-21
Applicant: Huawei Technologies Co., Ltd.
Inventor： Chao Zan , Qiming Tang , Guangrong Zhou , Jun Yan
Abstract: An interface protection circuit and a device interface are disclosed. The interface protection circuit includes a capacitor and a transient voltage suppressor (TVS) transistor. A first end of the capacitor is connected to a connection port, a second end of the capacitor is connected to a first end of the TVS transistor and an interface chip, and a second end of the TVS transistor is grounded.
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3.发明申请公开(公告)号：US20190140938A1
公开(公告)日：2019-05-09
申请号：US16240138
申请日：2019-01-04
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Farhad Barzegar , Paul Shala Henry , Robert Bennett , Irwin Gerszberg , Thomas M. Willis, III , Donald J. Barnickel , Shikik Johnson
IPC: H04L12/707 , H04B3/58 , H04B3/54 , H04B3/00 , H04B3/36 , H01Q1/22 , H01Q21/00 , H01Q13/24 , H01Q3/30 , H01Q21/06
CPC classification number: H04L45/24 , H01Q1/2291 , H01Q3/30 , H01Q13/24 , H01Q21/00 , H01Q21/06 , H04B3/00 , H04B3/36 , H04B3/54 , H04B3/58 , H04B7/0617 , H04L12/6418
Abstract: Aspects of the subject disclosure may include, a system that can transmit first wireless signals associated with communication signals, where the first wireless signals are directed via beam steering by an antenna array towards a wireless receiver. The system can transmit second wireless signals associated with the communication signals, where the second wireless signals are directed via the beam steering by the antenna array towards a transmission medium. The second wireless signals can induce electromagnetic waves at a physical interface of the transmission medium where the electromagnetic waves are associated with the communication signals. Other embodiments are disclosed.
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公开(公告)号：US20180278046A1
公开(公告)日：2018-09-27
申请号：US15542334
申请日：2015-02-13
Applicant: MITSUBISHI ELECTRIC CORPORATION
Inventor： Takuo ARAMAKI
IPC: H02H7/125
CPC classification number: H02H7/1255 , H02H7/12 , H02M7/12 , H02M7/48 , H02M7/72 , H02M7/797 , H04B3/00
Abstract: A protection device for a power converter provided between an AC system and a DC power transmission system is configured to: receive an input of an AC current value obtained between a transformer connected to the AC system and the power converter capable of converting AC power into DC power; receive an input of a change rate of a direct current detected by a Rogowski coil provided between a DC line and the power converter, the DC line receiving DC power from the power converter; determine based on the AC current value and the change rate whether a fault occurs or not in one of the power converter and the DC line; and output information for protecting the power converter based on a determination result.
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公开(公告)号：US09992089B2
公开(公告)日：2018-06-05
申请号：US15355203
申请日：2016-11-18
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Jie Lv , Xiaolong Zhang
IPC: H04B3/00 , H04B3/46 , H04B17/391 , H04L12/26 , H04B10/079 , H04L1/00 , H04L1/20 , H04Q11/00
CPC classification number: H04L43/0847 , H04B3/00 , H04B3/46 , H04B10/0793 , H04B17/391 , H04L1/0036 , H04L1/203 , H04L1/206 , H04Q11/0066 , H04Q2011/0083
Abstract: The present invention discloses a parameter obtaining method and apparatus. In this method, multiple signals are received over a communications link on a network, where each of the received signals is corresponding to a point on a complex plane; decision is performed on each of the received signals; for each of the received signals, an error signal between the received signal and a corresponding decision signal is determined; and a complex-plane distribution feature parameter used to indicate a distribution feature, on the complex plane, of the signals received over the communications link is determined according to all the determined error signals. In this method, an inaccurate maintenance result in manual analysis of a constellation diagram is avoided.
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Patent Agency Ranking
公开(公告)号：US20180151957A1
公开(公告)日：2018-05-31
申请号：US15820721
申请日：2017-11-22
Applicant: AT&T Intellectual Property I, L.P
Inventor： Robert Bennett , Aldo Adriazola , Farhad Barzegar , Irwin Gerszberg , Brandon Pimm , Mitchell Harvey Fuchs , Paul Shala Henry , Donald J. Barnickel , Thomas M. Willis, III
CPC classification number: H01Q13/24 , H01P1/16 , H01P3/16 , H01Q1/46 , H01Q15/08 , H01Q19/062 , H04B3/00 , H04B3/52 , H04B3/54 , H04B2203/5441 , H04R3/00 , H04R2420/07
Abstract: Aspects of the subject disclosure may include, for example, antenna structure that includes a dielectric antenna having a dielectric lens and a dielectric body, and a feedline coupled to the dielectric antenna, wherein an endpoint of the feedline is configured to reduce a reflection of an electromagnetic wave transmission, wherein electromagnetic waves generated by the electromagnetic wave transmission are guided along the feedline without requiring an electrical return path, and wherein the electromagnetic waves propagate through the dielectric body to the dielectric lens to generate wireless signals. Other embodiments are disclosed.
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7.发明申请公开(公告)号：US20170288663A1
公开(公告)日：2017-10-05
申请号：US15248173
申请日：2016-08-26
Applicant: MediaTek Inc.
Inventor： Tamer Ali
IPC: H03K17/687
CPC classification number: H03K17/687 , H04B3/00 , H04L25/026
Abstract: A driver circuit for driving a transmission line, such as a cable or a metal trace on a printed circuit board is described. The driver may be configured to drive lines with voltages exceeding the maximum voltage than a transistor can withstand for a given fabrication node. The driver may be configured to receive a supply voltage larger than that indicated by manufacturers. The driver may use a fast path and a slow path. Signals provided by the slow path and the fast path may be combine to adapt the input signals to levels that do cause stress to a transistor. A plurality of drivers of the type described herein may be used to provide digital-to-analog conversion.
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8.发明申请公开(公告)号：US20170250733A1
公开(公告)日：2017-08-31
申请号：US15507398
申请日：2014-08-28
Applicant: GE Intelligent Platforms, Inc.
Inventor： Bruce HENDERSON , Alan Carroll LOVELL
CPC classification number: H04B3/54 , G05B19/05 , G05F1/46 , G08C19/02 , G08C19/38 , H04B3/00 , H04B3/50 , H04L5/1423 , H04L27/32
Abstract: A system for coupling a modulated voltage signal onto a current loop between a host device and a field device, in various embodiments, can include a circuit and an impedance bridge. The circuit is configured to flow current from the field device between two terminals of an input circuit in the host device, wherein the two terminals are included in the current loop. The impedance bridge is positioned between the two terminals and configured to modulate impedance to convert the current in a field loop produced by the field device into terminal voltage modulation, without introducing a DC voltage burden to the current.
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公开(公告)号：US20170250682A1
公开(公告)日：2017-08-31
申请号：US15226564
申请日：2016-08-02
Applicant: Analog Devices Global
Inventor： Miguel Ángel Fernández Robayna
CPC classification number: H03K5/007 , H04B1/04 , H04B3/00 , H04L25/0266 , H04L25/085
Abstract: A circuit for compensation of baseline voltage wander operating at an input of an isolator is disclosed. The circuit can compensate electronically the frequency response of an isolation circuit (e.g., a transformer) by increasing the pass band in the low frequency region in order to minimize the baseline wander caused by low inductance windings. The compensation circuit can be used to inject a current ramp proportional to the amplitude and the duration of the pulse and inversely proportional to the open circuit inductance of the isolation circuit.
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公开(公告)号：US09722318B2
公开(公告)日：2017-08-01
申请号：US14885463
申请日：2015-10-16
Applicant: AT&T INTELLECTUAL PROPERTY I, LP
Inventor： Aldo Adriazola , Mitchell Harvey Fuchs , Paul Shala Henry , Donald J Barnickel , Farhad Barzegar , Robert Bennett , Irwin Gerszberg , Thomas M. Willis, III
CPC classification number: H04B5/0018 , H01P1/16 , H01P3/10 , H01P3/16 , H01Q13/24 , H01Q19/062 , H01Q19/09 , H04B3/00 , H04B3/52 , H04B3/54 , H04B2203/5441 , H04R2420/07
Abstract: Aspects of the subject disclosure may include, for example, an antenna structure that includes a dielectric antenna comprising a dielectric feedline having a feed point, and a collar that facilitates aligning a port of a waveguide system to the feed point of the dielectric feedline for facilitating transmission or reception of electromagnetic waves exchanged between the port and the feed point of the dielectric feedline, the electromagnetic waves guided by the dielectric feedline without an electrical return path. Other embodiments are disclosed.
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