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
    • 2. 发明授权
    • Adjustable filter
    • 可调式过滤器
    • US06681102B1
    • 2004-01-20
    • US09618637
    • 2000-07-18
    • James Digby Yarlet CollierIan Michael Sabberton
    • James Digby Yarlet CollierIan Michael Sabberton
    • H04B110
    • H03J3/08H03B5/1265H03B2201/0266H03J2200/10
    • A radio transmitter and/or receiver comprising: an oscillator tuning circuit comprising an adjustable capacitor whose capacitance is adjustable by means of a first tuning signal; a filter tuning circuit comprising an adjustable capacitor whose capacitance is adjustable by means of a second tuning signal; an oscillator whose operational frequency is dependant on the reactance of the oscillator tuning circuit; a filter for filtering signals in the course of transmission and/or reception, and whose response is dependant on the reactance of the filter tuning circuit; and a tuning unit for generating the first and second tuning signals; wherein at least a part of the filter tuning circuit is a replica of at least a part of the oscillator tuning circuit and the tuning circuit is capable of generating one of the first and second tuning signals in dependence on the other of the tuning signals.
    • 一种无线电发射机和/或接收机,包括:振荡器调谐电路,包括可调电容器,其电容可通过第一调谐信号调节; 滤波器调谐电路,其包括可调电容器,其电容通过第二调谐信号可调; 振荡器的工作频率取决于振荡器调谐电路的电抗; 用于在发送和/或接收过程中对信号进行滤波,并且其响应取决于滤波器调谐电路的电抗的滤波器; 以及调谐单元,用于产生第一和第二调谐信号; 其中所述滤波器调谐电路的至少一部分是所述振荡器调谐电路的至少一部分的复制品,并且所述调谐电路能够根据所述调谐信号中的另一个产生所述第一和第二调谐信号中的一个。
    • 5. 发明申请
    • Receiver for multiple signal spectra
    • 接收器用于多个信号光谱
    • US20100009648A1
    • 2010-01-14
    • US12380289
    • 2009-02-25
    • James Digby Yarlet Collier
    • James Digby Yarlet Collier
    • H04B1/26
    • G01S19/36G01S19/33
    • A radio receiver for receiving first signals of a first frequency spectrum having principal energy in a first frequency band and second signals of a second frequency spectrum having principal energy in second and third frequency bands, located on either side of the first frequency band, includes (i) an input for receiving an incoming signal; (ii) frequency shifting means for frequency shifting the incoming signal to form an intermediate frequency signal; and (iii) a filter for filtering the intermediate frequency signal. The filter has a frequency response that has a first passband and a second passband separated by a central stopband. A control unit for controlling the frequency shifting means has first and second modes for reception of the first and second signals. In the first mode, the control unit controls the frequency shifting means so as to frequency shift the incoming signal so that (a) the first frequency band of the incoming signal is shifted onto one of the first and second passbands and (b) one of the second and third frequency bands of the incoming signal is shifted onto the central stopband. In the second mode, the control unit controls the frequency shifting means so as to frequency shift the incoming signal so that (a) the second and third frequency bands of the incoming signal are shifted onto, respectively, the first and second passbands and (b) the first frequency band of the incoming signal is shifted onto the central stopband.
    • 一种无线电接收机,用于接收在第一频带中具有主能的第一频谱的第一信号和在第二频带和第三频带中具有主能的第二频谱的第二信号的第一信号,所述第二频谱位于第一频带的任一侧,包括 i)用于接收输入信号的输入; (ii)用于对输入信号进行频移以形成中频信号的频移装置; 和(iii)用于对中频信号进行滤波的滤波器。 滤波器具有频率响应,该频率响应具有由中央阻带分开的第一通带和第二通带。 用于控制频移装置的控制单元具有用于接收第一和第二信号的第一和第二模式。 在第一模式中,控制单元控制频移装置,以便使输入信号频移,使得(a)输入信号的第一频带被转移到第一和第二通带中的一个上,并且(b) 输入信号的第二和第三频带被转移到中央阻带上。 在第二模式中,控制单元控制频移装置,以使输入信号频移,使得(a)输入信号的第二和第三频带分别转移到第一和第二通带上,并且(b )输入信号的第一频带被转移到中央阻带上。
    • 6. 发明授权
    • Fluid flow meter
    • 流体流量计
    • US5777237A
    • 1998-07-07
    • US492058
    • 1995-08-28
    • James Digby Yarlet CollierChristopher DaviesChristopher James Newton FryerAlain Henri Waha
    • James Digby Yarlet CollierChristopher DaviesChristopher James Newton FryerAlain Henri Waha
    • G01F1/66G01P5/24G01F1/00
    • G01P5/245G01F1/662G01F1/667G01F1/668G01P5/248
    • A fluid flow meter comprises a pair of transducers spaced apart in the direction of fluid flow. A transmitter causes acoustic signals to be transmitted in both directions through the fluid by the transducers. A processor determines information relating to the fluid flow by monitoring the time of flight of acoustic signals received by the transducers. Part of the space between the transducers defines a flow path consisting of a flow structure having a plurality of parallel fluid flow passages which extend axially in the direction of flow, wherein the cross-sectional diameters of the passages are chosen such that substantially plane acoustic waves only are transmitted through the passages by the fluid, and wherein under working conditions the fluid flows through each passage such that the ratio of the volume flow rate through the passage to the total volume flow rate remains substantially constant with respect to the total volume flow rate.
    • PCT No.PCT / GB94 / 00157 Sec。 371日期:1995年8月28日 102(e)日期1995年8月28日PCT 1994年1月27日PCT PCT。 公开号WO94 / 17372 日期1994年8月4日流体流量计包括沿流体流动方向间隔开的一对换能器。 发射器使得声信号通过换能器通过流体在两个方向上传播。 处理器通过监测由换能器接收的声学信号的飞行时间来确定与流体流动有关的信息。 换能器之间的空间的一部分限定了流动路径,该流动路径由具有沿流动方向轴向延伸的多个平行流体流动通道的流动结构组成,其中通道的横截面直径选择为使得基本上平面的声波 仅通过流体通过通道传输,并且其中在工作条件下,流体流过每个通道,使得通过通道的体积流量与总体积流量之比相对于总体积流量保持基本恒定 。
    • 9. 发明授权
    • Testing response of a radio transceiver
    • 测试无线电收发器的响应
    • US06882827B1
    • 2005-04-19
    • US10031385
    • 2000-07-18
    • James Digby Yarlet Collier
    • James Digby Yarlet Collier
    • H04B1/40H04B17/00
    • H04B17/20H04B17/15
    • A radio transceiver comprising: an antenna; local oscillator for generating a local oscillator signal at a local oscillator frequency; a receiver capable of receiving a first radio frequency signal from the antenna at a receiver input and having a first mixer for mixing a signal derived from the first radio signal with the said local oscillator signal to generate an intermediate frequency signal, and a receiver output for providing an output signal dependant on the intermediate frequency signal; a transmitter capable of receiving an input signal at a transmitter input and having a second mixer for mixing a signal derived from the input signal with a local oscillator signal to generate a second radio frequency signal for transmission; a switching arrangement having a normal configuration in which the transmitter is coupled to the antenna to apply the second radio frequency signal to the antenna, and a testing configuration in which the transmitter is coupled to the receiver input to apply the second radio frequency signal to the receiver input; and a signal processor coupled to the transmitter input and the receiver output and capable of, when the switching arrangement is in the testing configuration, applying a testing signal to the transmitter input to cause the transmitter to generate a radio frequency test signal, and determining from the output signal of the receiver the response of the receive to the radio frequency test signal.
    • 一种无线电收发器,包括:天线; 用于以本地振荡器频率产生本地振荡器信号的本地振荡器; 接收机,其能够在接收机输入处从天线接收第一射频信号,并且具有用于将从第一无线电信号导出的信号与所述本地振荡器信号混合以产生中频信号的第一混频器,以及接收器输出 提供取决于中频信号的输出信号; 发射机,其能够在发射机输入处接收输入信号,并具有用于将从输入信号导出的信号与本地振荡器信号混合的第二混频器,以产生用于传输的第二射频信号; 具有正常配置的切换装置,其中发射器耦合到天线以将第二射频信号施加到天线,以及测试配置,其中发射机耦合到接收机输入端以将第二射频信号施加到 接收机输入; 以及耦合到发射机输入和接收机输出的信号处理器,并且当切换装置处于测试配置中时,将测试信号施加到发射机输入端以使发射机产生射频测试信号,并且从 接收机的输出信号接收到射频测试信号的响应。
    • 10. 发明授权
    • Fluid flow meter
    • 流体流量计
    • US5811689A
    • 1998-09-22
    • US725536
    • 1996-10-03
    • James Digby Yarlet CollierChristopher DaviesChristopher James Newton FryerAlain Henri Waha
    • James Digby Yarlet CollierChristopher DaviesChristopher James Newton FryerAlain Henri Waha
    • G01F1/66G01P5/24
    • G01P5/245G01F1/662G01F1/667G01F1/668G01P5/248
    • A fluid flow meter comprises a pair of transducers spaced apart in the direction of fluid flow. A transmitter causes acoustic signals to be transmitted in both directions through the fluid by the transducers. A processor determines information relating to the fluid flow by monitoring the time of flight of acoustic signals received by the transducers. Part of the space between the transducers defines a flow path consisting of a flow structure having a plurality of parallel fluid flow passages which extend axially in the direction of flow, wherein the cross-sectional diameters of the passages are chosen such that substantially plane acoustic waves only are transmitted through the passages by the fluid, and wherein under working conditions that fluid flows through each passage such that the ratio of the volume flow rate through the passage to the total volume flow rate remains substantially constant with respect to the total volume flow rate.
    • 流体流量计包括沿流体流动方向间隔开的一对换能器。 发射器使得声信号通过换能器通过流体在两个方向上传播。 处理器通过监测由换能器接收的声学信号的飞行时间来确定与流体流动有关的信息。 换能器之间的空间的一部分限定了流动路径,该流动路径由具有沿流动方向轴向延伸的多个平行流体流动通道的流动结构组成,其中通道的横截面直径选择为使得基本上平面的声波 仅通过流体通过通道传送,并且其中在工作条件下,流体流过每个通道,使得通过通道的体积流量与总体积流量之比相对于总体积流量保持基本恒定 。