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    Resonant circuit with automated trimming capabilities
    1.
    发明授权
    Resonant circuit with automated trimming capabilities 有权
    具有自动调整功能的谐振电路

    公开(公告)号：US08890633B2

    公开(公告)日：2014-11-18

    申请号：US13719011

    申请日：2012-12-18

    申请人： NXP B.V.

    发明人： Sven Simons

    IPC分类号： H03B5/08 ,  H03L5/00 ,  H03J1/00 ,  H03J3/20 ,  H03J3/08 ,  H03J3/24 ,  H03B5/10 ,  H03B1/00

    CPC分类号： H03L5/00 ,  H03B1/00 ,  H03B5/10 ,  H03J1/0008 ,  H03J3/08 ,  H03J3/20 ,  H03J3/24 ,  H03J2200/28

    摘要： According to an example embodiment, a device includes a resonant circuit configured and arranged to provide a peak current flow at a resonance frequency. A trimming circuit provides variable impedances to the resonant circuit and thereby changes the resonance frequency for the resonant circuit. A driver circuit is configured to generate a trimming signal that oscillates at a desired frequency. A switch circuit couples and decouples the driver circuit to the resonant circuit for driving the resonant circuit with the trimming signal. An amplitude detection circuit detects amplitudes for signals generated in response to the trimming signal being connected to the resonant circuit. A processing circuit correlates detected amplitudes from the amplitude detection circuit with different impedance values of the variable trimming circuit.

    摘要翻译： 根据示例性实施例，一种器件包括谐振电路，其被配置和布置成以谐振频率提供峰值电流。 修整电路为谐振电路提供可变阻抗，从而改变谐振电路的谐振频率。 驱动器电路被配置为产生以所需频率振荡的微调信号。 开关电路将驱动电路耦合到谐振电路并将其去耦，以用修整信号来驱动谐振电路。 振幅检测电路检测响应于连接到谐振电路的修整信号而产生的信号的幅度。 处理电路使来自振幅检测电路的检测振幅与可变微调电路的不同阻抗值相关。

    SIX PORT LINEAR NETWORK SINGLE WIRE MULTI SWITCH TRANSCEIVER
    2.
    发明申请
    SIX PORT LINEAR NETWORK SINGLE WIRE MULTI SWITCH TRANSCEIVER 有权
    六线式线性网络单线多开关收发器

    公开(公告)号：US20100071009A1

    公开(公告)日：2010-03-18

    申请号：US12450418

    申请日：2008-03-26

    申请人： Lincheng Xiu ,  John James Fitzpatrick

    发明人： Lincheng Xiu ,  John James Fitzpatrick

    IPC分类号： H04N7/20

    CPC分类号： H03H2/008 ,  H01Q1/247 ,  H01Q1/50 ,  H03F1/52 ,  H03F3/189 ,  H03H3/06 ,  H03H7/0138 ,  H03J3/06 ,  H03J3/24 ,  H04H40/90 ,  H04N7/20

    摘要： A fluid sensor comprises a sensor housing (12), a sensor package (14), an actuator (16) and a switch (18). The sensor package (14) is disposed within the sensor housing (12) and includes first and second screens and at least one sensing membrane. The sensing membrane is disposed between the first and second screens (36) and is adapted to expand when exposed to a predetermined quantity of a first predetermined fluid. The actuator (16) is disposed proximate the sensor package (14) within the sensor housing (12) and moveable between a first position and a second position through an intermediate position. The switch (18) is disposed proximate the actuator (16) and is operable between closed and open positions. When the actuator (16) is in the second position at least a portion of the actuator (16) depresses the switch (18) to control an-electrical, circuit connected therewith.

    摘要翻译： 流体传感器包括传感器壳体（12），传感器封装（14），致动器（16）和开关（18）。 传感器封装（14）设置在传感器外壳（12）内并且包括第一和第二屏幕以及至少一个传感膜。 感测膜设置在第一和第二筛网（36）之间，并且适于当暴露于预定量的第一预定流体时膨胀。 致动器（16）设置在传感器外壳（12）内靠近传感器封装（14）处，并通过中间位置在第一位置和第二位置之间移动。 开关（18）设置在致动器（16）附近并且可在闭合位置和打开位置之间操作。 当致动器（16）处于第二位置时，致动器（16）的至少一部分按压开关（18）以控制与其连接的电气电路。

    Receiver and its tracking adusting method
    5.
    发明申请
    Receiver and its tracking adusting method 失效
    接收机及其跟踪调理方法

    公开(公告)号：US20050003780A1

    公开(公告)日：2005-01-06

    申请号：US10494654

    申请日：2001-11-16

    申请人： Hiroshi Miyagi

    发明人： Hiroshi Miyagi

    IPC分类号： H03J1/00 ,  H03J3/24 ,  H03L7/099 ,  H03L7/18 ,  H04B17/00 ,  H04B1/16 ,  H04B1/06

    CPC分类号： H03L7/0805 ,  H03J1/005 ,  H03J3/24 ,  H03L7/099 ,  H03L7/18 ,  H04B17/20

    摘要： A receiver such that the period required for tracking adjustment, temperature compensation is not needed, and tracking errors due to fluctuation of the power supply voltage are prevented from increasing, and a tracking adjusting method for the receiver. A DAC 4 generates a voltage according to the value of data (Do) inputted from an MPU 81 by using a control voltage outputted from a low-pass filter 35 in a local oscillator 3 as a reference voltage used during digital-analog conversion. A multiplier circuit 5 analog-multiplies the output voltage of the DAC 4 by a predetermined multiplier. The output voltage of the multiplier circuit 5 is applied as a tuning voltage to a high-frequency tuning circuit 20. In an EEPROM 84 stored is the value of the input data (Do) of the DAC 4 which has been measured in advance and corresponds to the tuned voltage of when the tracking error is the minimum at the central value of the local oscillation frequency, and the MPU 81 reads the data (Do) from the EEPROM 84 and inputs it to the DAC 4.

    摘要翻译： 使得不需要跟踪调整所需的周期，不需要温度补偿以及由于电源电压波动引起的跟踪误差的接收机增加，以及用于接收机的跟踪调整方法。 DAC4通过使用从本地振荡器3中的低通滤波器35输出的控制电压作为在数字 - 模拟转换期间使用的参考电压，根据从MPU81输入的数据（Do）的值产生电压。 乘法器电路5将DAC4的输出电压模拟乘以预定的乘法器。 乘法器电路5的输出电压作为调谐电压被施加到高频调谐电路20.在存储的EEPROM 84中，预先测量并对应于DAC4的输入数据（Do）的值 到跟踪误差在本地振荡频率的中心值处的最小值的调谐电压，并且MPU 81从EEPROM 84读取数据（Do）并将其输入到DAC 4。

    High frequency coil arrangement
    6.
    发明授权
    High frequency coil arrangement 失效
    高频线圈布置

    公开(公告)号：US4760325A

    公开(公告)日：1988-07-26

    申请号：US41528

    申请日：1987-04-23

    申请人： Masato Suzuki ,  Tatsushi Shinoda ,  Hiromi Murakami

    发明人： Masato Suzuki ,  Tatsushi Shinoda ,  Hiromi Murakami

    IPC分类号： H01F27/00 ,  H01F19/06 ,  H03D7/14 ,  H03J3/24 ,  H03J3/20 ,  H04B1/26

    CPC分类号： H03J3/24

    摘要： A high frequency coil arrangement, comprising an input side coil and an output side coil electromagnetically coupled with each other, the input side coil being divided into two coil elements having substantially equal inductances by provision of a tap, characterized in that two parallel tuner capacitors are provided for the two coil elements for providing two tuner circuits of equal frequencies, and that a further separate capacitor is provided and connected with both ends of the input side coil for adjustment of its tuning frequency.

    摘要翻译： 一种高频线圈装置，包括输入侧线圈和与其相互电磁耦合的输出侧线圈，输入侧线圈通过提供抽头被分成具有大致相等的电感的两个线圈元件，其特征在于两个并联的调谐器电容器 提供两个线圈元件，用于提供两个相同频率的调谐器电路，并且提供另一个分离的电容器并与输入侧线圈的两端连接，以调整其调谐频率。

    Television receiver tuning circuit tunable over a wide frequency range
    7.
    发明授权
    Television receiver tuning circuit tunable over a wide frequency range 失效
    电视接收机调谐电路在宽频率范围内可调

    公开(公告)号：US4442548A

    公开(公告)日：1984-04-10

    申请号：US378115

    申请日：1982-05-14

    申请人： William L. Lehmann

    发明人： William L. Lehmann

    IPC分类号： H03J3/24 ,  H03J5/24 ,  H04B1/16 ,  H03F3/191

    CPC分类号： H03J3/24 ,  H03J5/242

    摘要： A radio frequency (RF) amplifier including a resonant circuit having a peaked response is tunable in response to a tuning voltage to select RF carriers over a wide range of frequencies and includes an additional resonant circuit for improving its response at the low frequency end of that range. The additional resonant circuit has a peaked response tunable in response to the tuning voltage in tracking relationship to that of the first resonant circuit. The tracking relationship is desirably selected so that the additional resonant circuit does not become tuned to a frequency which is an integral sub-multiple of the frequency of a selected RF carrier.

    摘要翻译： 包括具有峰值响应的谐振电路的射频（RF）放大器响应于调谐电压而可调谐，以在宽频率范围内选择RF载波，并且包括附加谐振电路，用于改善其在该频率的低频端的响应 范围。 附加谐振电路具有响应于与第一谐振电路跟踪关系的调谐电压可调谐的峰值响应。 期望选择跟踪关系，使得附加谐振电路不会被调谐到作为所选RF载波的频率的积分子倍数的频率。