会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Module for powerline communication transmission
    • 电力线通信传输模块
    • US09035484B2
    • 2015-05-19
    • US13324212
    • 2011-12-13
    • Jonathan Ephraim David HurwitzSeyed A A DaneshIain Barnett
    • Jonathan Ephraim David HurwitzSeyed A A DaneshIain Barnett
    • H04B3/54H04B3/56
    • H04B3/54H04B3/56H04B2203/5483Y10S307/01
    • A powerline communication (PLC) transmission module transmits a signal over a three-line electrical mains supply. The PLC transmission module includes at least two coupling transformers, each transformer coupling the signal to first and second line-pairs of a three-line electrical mains supply, the first and second line-pairs different from one another. Driving circuitry drives a first version of the signal over the first line-pair and a second version of the signal over the second line-pair. Inversion circuitry selectively inverts one version of the signal relative to the other version of the signal, dependent upon an enacted transmission mode. The inversion circuitry may invert neither/both of the versions of the signal so that the signal is transmitted as a differential-mode signal on the line-pairs or invert one of the first and second versions of the signal relative to the other so that the signal is a common-mode signal.
    • 电力线通信(PLC)传输模块通过三线电源发送信号。 PLC传输模块包括至少两个耦合变压器,每个变压器将信号耦合到三线电源的第一和第二线对,第一和第二线对彼此不同。 驱动电路通过第一对线驱动信号的第一版本,并通过第二对线驱动第二版本的信号。 取决于所制定的传输模式,反相电路相对于信号的其它版本选择性地反转信号的一个版本。 反相电路可以不使信号的两个版本都反转,使得信号作为差分模式信号被发送到线对上,或者相对于另一个信号反转信号的第一和第二版本中的一个。 信号是共模信号。
    • 5. 发明授权
    • Power line communication system
    • 电力线通信系统
    • US08670479B2
    • 2014-03-11
    • US12996208
    • 2009-06-12
    • Jose Abad MolinaJonathan Ephraim David Hurwitz
    • Jose Abad MolinaJonathan Ephraim David Hurwitz
    • H04B3/46H04B17/00
    • H04B3/542H04L5/0046
    • The present invention relates to a communication system comprising a transmitter and receiver in communication for transmitting signals through one or more communications channels, wherein at least one of the transmitter and the receiver each comprise a quality measure, which contributes to an overall quality measure for the system and wherein the or each communications channel comprises a plurality of sub-bands between at least two nodes, wherein the plurality of sub-bands each having a specific maximum power spectral densities (PSDs) and wherein one or more sub-bands between the transmitter and the receiver are identified as having a higher maximum PSD than other sub-bands and wherein the PSD of the one or more identified sub-bands is reduced in a predetermined manner to thereby increase the overall quality measure for the system.
    • 本发明涉及一种通信系统,包括通信中的发射机和接收机,用于通过一个或多个通信信道发送信号,其中发射机和接收机中的至少一个包括质量测量,其有助于为 系统,并且其中所述或每个通信信道包括在至少两个节点之间的多个子带,其中所述多个子带每个具有特定的最大功率谱密度(PSD),并且其中发射机之间的一个或多个子带 并且接收器被识别为具有比其他子带更高的最大PSD,并且其中一个或多个所识别的子带的PSD以预定的方式被减少,从而增加了系统的总体质量度量。
    • 6. 发明授权
    • Power line communications device transmitting at differing power levels in same communication
    • 电力线通信设备在相同通信中以不同的功率电平进行发射
    • US08605743B2
    • 2013-12-10
    • US13167565
    • 2011-06-23
    • Jose Abad MolinaJonathan Ephraim David Hurwitz
    • Jose Abad MolinaJonathan Ephraim David Hurwitz
    • H04L12/413
    • H04B3/542H04B2203/5408H04B2203/5445H04B2203/5495
    • A power-line communications (PLC) device communicates with a second PLC device via a PLC medium and includes a transmitter and a receiver. The transmitter transmits a Request to Send (RTS) communication to the second PLC device at a first power level. The receiver receives a Clear to Send (CTS) communication from the second PLC device. The transmitter transmits data to the second PLC device at a second power level that is less than the first power level. The transmitter transmits a TDM frame to the second PLC device that includes a preamble and header transmitted at a first power level and at least one special data symbol and a payload transmitted at a second power level that is less than the first power level. The special data symbol resides between the preamble or header and the payload and is usable by the second PLC device for processing of the payload.
    • 电力线通信(PLC)设备通过PLC介质与第二PLC设备通信,并且包括发射机和接收机。 发射机以第一功率电平向第二PLC设备发送请求发送(RTS)通信。 接收机从第二个PLC设备接收到清除发送(CTS)通信。 发射机以小于第一功率电平的第二功率电平向第二PLC设备发送数据。 所述发射机向所述第二PLC设备发送TDM帧,所述第二PLC设备包括以第一功率电平发送的前导码和报头,以及在小于所述第一功率电平的第二功率电平下发送的至少一个特殊数据符号和有效载荷。 特殊数据符号位于前导码或报头和有效载荷之间,并且可由第二PLC设备用于处理有效载荷。
    • 8. 发明授权
    • AC voltage measurement circuit
    • 交流电压测量电路
    • US08493056B2
    • 2013-07-23
    • US13106720
    • 2011-05-12
    • Iain BarnettWilliam Michael James HollandJonathan Ephraim David Hurwitz
    • Iain BarnettWilliam Michael James HollandJonathan Ephraim David Hurwitz
    • G01R19/00
    • H05K1/162G01R15/06G01R15/16G01R19/12G01R19/175H03H7/004H05K1/0239H05K1/0256H05K2201/09309H05K2201/09972
    • A voltage measurement circuit is operative to measure a high voltage AC signal and includes a capacitive divider circuit and a compensator circuit. The capacitive divider circuit includes first and second inputs, across which, in use, is received a high voltage AC signal and also includes second and third capacitors. First and second plates of each of the first, second and third capacitors are defined by conductive layers of a printed circuit board and the dielectric of each of the first, second and third capacitors being defined by a non-conducting part of the printed circuit board. A compensator circuit has a configurable transfer function and includes an input connected across the first and second plates of the third capacitor and an output. The compensator circuit is operative to change a voltage received at its input in accordance with the transfer function and to provide the changed voltage at its output.
    • 电压测量电路用于测量高压AC信号,并包括电容分压器电路和补偿电路。 电容分压器电路包括第一和第二输入,在使用中,它们被接收高压AC信号,并且还包括第二和第三电容器。 第一,第二和第三电容器中的每一个的第一和第二板由印刷电路板的导电层限定,并且第一,第二和第三电容器中的每一个的电介质由印刷电路板的非导电部分限定 。 补偿电路具有可配置的传递函数,并且包括连接在第三电容器的第一和第二板上的输入端和输出端。 补偿电路可操作以根据传递函数改变其输入处接收的电压,并在其输出端提供改变的电压。
    • 9. 发明申请
    • Transformer Driver Circuit
    • 变压器驱动电路
    • US20120306472A1
    • 2012-12-06
    • US13515464
    • 2010-12-17
    • Jonathan Ephraim David HurwitzSeyed DaneshSteven Maughan
    • Jonathan Ephraim David HurwitzSeyed DaneshSteven Maughan
    • H01F38/00
    • H01F38/00G01R19/0092H03F3/217H03F2200/273H03F2200/541H03K17/691
    • Disclosed is a transformer driver circuit, which in one aspect comprises a transformer comprising a primary winding and a secondary winding and a transformer tap, the latter electrically connected to a first voltage source. The primary winding is electrically connected at both ends to respective unipolar controllable current sinks that form part of an integrated circuit. The circuit operates by each current sink selectively sinking current from the end of the primary winding to which it is connected so as to cause current to flow in the secondary winding in a push-pull fashion. The circuit further comprises a load electrically connected to the secondary winding; and protection circuitry operative to protect the integrated circuit from input levels greater than it can handle. In another aspect there is a similar transformer drive circuitry which may or may not be partly on an integrated circuit and have protection circuitry. This aspect comprises control circuitry that provides analogue control signals to the current sinks so as to cause them to sink current in a substantially linear dependence on the signal amplitude of said analogue control signals.
    • 公开了一种变压器驱动器电路,其一方面包括变压器,其包括初级绕组和次级绕组以及变压器抽头,后者电连接到第一电压源。 初级绕组的两端电连接到形成集成电路的一部分的相应的单极可控电流吸收器。 该电路通过每个电流吸收器从与其连接的初级绕组的端部选择性地吸收电流,从而使电流以推挽方式在次级绕组中流动。 电路还包括电连接到次级绕组的负载; 并且保护电路可操作以保护集成电路免受大于其可处理的输入电平。 在另一方面,存在类似的变压器驱动电路,其可以部分地在集成电路上并且具有保护电路。 该方面包括控制电路,其向电流吸收器提供模拟控制信号,以便使它们基本上线性地依赖于所述模拟控制信号的信号幅度而吸收电流。