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
    • 63. 发明授权
    • Ink jet printer start-up and shutdown
    • 喷墨打印机启动和关机
    • US4514735A
    • 1985-04-30
    • US522954
    • 1983-08-12
    • David E. Jones
    • David E. Jones
    • B41J2/18B41J2/075B41J2/085B41J2/09B41J2/17B41J2/185G01D15/18
    • B41J2/1707
    • An ink jet printer includes a print head for producing at least one jet drop stream from a fluid filament emerging therefrom, and charge electrode for inducing electrical charges on drops formed from the fluid filament. The charge electrode is movable into and out of an operating position in which it is adjacent and at least partially surrounds the fluid filament. A deflection field is established prior to start-up in which the field has a non-zero electrical potential in the region of the fluid filament. At start-up and shutdown of the printer, the charge electrode is retracted from its normal operating position and drops are charged by the deflection field. As a consequence, the charge electrodes are not contaminated by ink from the unstable jets. The drops in the jet drop streams are, however, charged and deflected to a catcher by the deflection field. After stable operation is obtained, the charge electrode is moved into its normal operating position. At shutdown of the printer, this sequence of steps is reversed.
    • 喷墨打印机包括用于从其中流出的流体丝产生至少一个喷射滴流的打印头和用于在由流体丝形成的液滴上引起电荷的充电电极。 充电电极能够进入和离开与其相邻的操作位置并且至少部分地围绕流体细丝。 在启动之前建立偏转场,其中场在流体细丝的区域中具有非零电位。 在打印机的启动和关闭时,充电电极从其正常工作位置缩回,并且液滴由偏转场充电。 因此,充电电极不会被来自不稳定喷射的墨水污染。 然而,喷射滴流中的液滴被偏转场充电并偏转到捕获器。 在获得稳定操作之后,充电电极移动到其正常工作位置。 在打印机关机时,这一步骤相反。
    • 64. 发明申请
    • LUMPED CROSS-COUPLED WILKINSON CIRCUIT
    • 滚动的交叉连接的威尔逊电路
    • US20110063045A1
    • 2011-03-17
    • US12433377
    • 2009-04-30
    • David E. JonesKevin M. Hoheisel
    • David E. JonesKevin M. Hoheisel
    • H03H7/38
    • H03H7/48H03H7/09
    • The present invention relates to a lumped cross-coupled Wilkinson circuit having a pair of magnetically cross-coupled inductive elements coupled to an isolation network. By magnetically cross-coupling the inductive elements, which have a mutual inductance, the inductance of each inductive element will be significantly less than the inductance of each inductive element in an equivalent lumped traditional Wilkinson combiner. Since the inductance of each inductive element is less, the size of each inductive element may be significantly smaller and the resistive loss of the each inductive element may be significantly smaller. In one embodiment of the present invention, the lumped cross-coupled Wilkinson circuit operates as a lumped cross-coupled Wilkinson combiner. In an alternate embodiment of the present invention, the lumped cross-coupled Wilkinson circuit operates as a lumped cross-coupled Wilkinson splitter.
    • 本发明涉及一种具有耦合到隔离网络的一对磁性交叉耦合电感元件的集总交叉耦合的威尔金森电路。 通过磁耦合具有互感的电感元件,每个电感元件的电感将显着小于等效的传统Wilkinson组合器中每个电感元件的电感。 由于每个电感元件的电感较小,每个电感元件的尺寸可能会明显较小,并且每个电感元件的电阻损耗可能会明显较小。 在本发明的一个实施例中,集总交叉耦合的威尔金森电路作为集总交叉耦合的威尔金森组合器工作。 在本发明的替代实施例中,集总交叉耦合的威尔金森电路作为集中的交叉耦合的威尔金森分路器工作。
    • 65. 发明授权
    • Termination circuit for network interface unit
    • 网络接口单元终端电路
    • US07609817B1
    • 2009-10-27
    • US11174924
    • 2005-07-05
    • David E. Jones
    • David E. Jones
    • H04M1/24H04M3/08H04M3/22H04M1/00
    • H04M1/24H04M3/301H04M2203/055
    • A network interface unit has an interface coupled to a first transmit line and a first receive line, and the interface is configured to receive a signal from the first receive line. The network interface unit further has circuitry operable in a test mode and a data mode that couples the received signal to the second transmit line via a first path while operating in the data mode. The circuitry further disables coupling of the signal to the second transmit line, couples the signal via an alternate path to the first transmit line, and creates a bias voltage about which a termination impedance for the second transmit line is centered while operating in test mode.
    • 网络接口单元具有耦合到第一发送线路和第一接收线路的接口,并且接口被配置为从第一接收线路接收信号。 网络接口单元还具有可操作于测试模式的电路和在数据模式下操作时经由第一路径将接收到的信号耦合到第二传输线的数据模式。 电路进一步禁止信号与第二传输线的耦合,将信号经由替代路径耦合到第一传输线,并产生偏置电压,第二传输线的终端阻抗在测试模式下工作时居中。
    • 66. 发明授权
    • Electronically tuned power amplifier
    • 电子调谐功率放大器
    • US07183843B1
    • 2007-02-27
    • US11167639
    • 2005-06-27
    • David E. JonesJoseph A. Kolosick
    • David E. JonesJoseph A. Kolosick
    • H03F3/68
    • H03F3/68H03F3/602
    • A power amplifier apparatus that includes a main power amplifier circuit and an injection power amplifier circuit is provided. The main amplifier includes a pair of quadrature coupled amplifiers. Similarly, the injection power amplifier also includes pair of quadrature coupled amplifiers. The output signal from the injection amplifier is connected to the isolation port of the quadrature coupler of the main amplifier. The input signal is split and applied to the inputs of both the main and injection amplifiers. The gain and phase through the injection amplifier is adjusted in order to vary the magnitude and phase of the signal injected into the isolation port of the quadrature combiner of the main amplifier. By varying the magnitude and phase of the injected signal, the impedance seen by the individual amplifiers within main amplifier can be controlled. Controlling these impedances allows the properties of the main amplifier to be dynamically varied.
    • 提供了包括主功率放大器电路和注入功率放大器电路的功率放大器装置。 主放大器包括一对正交耦合放大器。 类似地,注入功率放大器还包括一对正交耦合放大器。 来自注入放大器的输出信号连接到主放大器的正交耦合器的隔离端口。 输入信号被分离并施加到主放大器和注​​入放大器的输入端。 调整通过注入放大器的增益和相位,以便改变注入到主放大器的正交组合器的隔离端口的信号的幅度和相位。 通过改变注入信号的幅度和相位,可以控制主放大器内各个放大器所看到的阻抗。 控制这些阻抗允许主放大器的特性动态变化。