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    Ratiometric clock systems for integrated receivers and associated methods
    2.
    发明授权
    Ratiometric clock systems for integrated receivers and associated methods 有权
    用于集成接收机和相关方法的比例时钟系统

    公开(公告)号：US07471940B2

    公开(公告)日：2008-12-30

    申请号：US11900957

    申请日：2007-09-14

    Applicant: G. Tyson Tuttle ,  David R. Welland ,  Scott D. Willingham

    Inventor： G. Tyson Tuttle ,  David R. Welland ,  Scott D. Willingham

    IPC: H04B1/28

    CPC classification number: H04B1/30

    Abstract: A ratiometric clock system for an integrated receiver and associated method are disclosed that provide an advantageous solution for combining digital signal processing (DSP) circuitry on the same integrated circuit as mixer and local oscillator (LO) generation circuitry. The generation circuitry generates an oscillation signal that is passed through a first divider to generate mixing signals for the mixer that is passed through a second divider to generate a digital clock signal that is utilized by the DSP circuitry. This digital clock signal can be utilized by integrated analog-to-digital conversion circuitry, as well.

    Abstract translation: 公开了一种用于集成接收机和相关方法的比例时钟系统，其提供用于将数字信号处理（DSP）电路组合在与混频器和本地振荡器（LO）生成电路相同的集成电路上的有利解决方案。 发生电路产生振荡信号，该信号通过第一分频器以产生用于混频器的混频信号，该混频器通过第二分频器以产生由DSP电路利用的数字时钟信号。 该数字时钟信号也可以由集成的模数转换电路使用。

    Ratiometric clock systems for integrated receivers and associated methods
    3.
    发明授权
    Ratiometric clock systems for integrated receivers and associated methods 有权
    用于集成接收机和相关方法的比例时钟系统

    公开(公告)号：US07272373B2

    公开(公告)日：2007-09-18

    申请号：US10880483

    申请日：2004-06-30

    Applicant: G. Tyson Tuttle ,  David R. Welland ,  Scott D. Willingham

    Inventor： G. Tyson Tuttle ,  David R. Welland ,  Scott D. Willingham

    IPC: H04B1/28

    CPC classification number: H04B1/30

    Abstract: A ratiometric clock system for an integrated receiver and associated method are disclosed that provide an advantageous solution for combining digital signal processing (DSP) circuitry on the same integrated circuit as mixer and local oscillator (LO) generation circuitry. The generation circuitry generates an oscillation signal that is passed through a first divider to generate mixing signals for the mixer and that is passed through a second divider to generate a digital clock signal that is utilized by the DSP circuitry. This digital clock signal can be utilized by integrated analog-to-digital conversion circuitry, as well.

    Abstract translation: 公开了一种用于集成接收机和相关方法的比例时钟系统，其提供用于将数字信号处理（DSP）电路组合在与混频器和本地振荡器（LO）生成电路相同的集成电路上的有利解决方案。 产生电路产生振荡信号，该信号通过第一分频器以产生用于混频器的混频信号，并通过第二分频器产生由DSP电路利用的数字时钟信号。 该数字时钟信号也可以由集成的模数转换电路使用。

    Mechanism for controlling amplifier gain in a radio receiver
    4.
    发明授权
    Mechanism for controlling amplifier gain in a radio receiver 失效
    控制无线电接收机放大器增益的机制

    公开(公告)号：US07890075B2

    公开(公告)日：2011-02-15

    申请号：US11648413

    申请日：2006-12-29

    Applicant: Chunyu Xin ,  G. Tyson Tuttle ,  Scott D. Willingham ,  Peter J. Vancorenland

    Inventor： Chunyu Xin ,  G. Tyson Tuttle ,  Scott D. Willingham ,  Peter J. Vancorenland

    IPC: H04B1/06

    CPC classification number: H03G3/3068

    Abstract: A radio receiver such as a frequency modulation (FM) receiver, for example, includes a radio frequency (RF) amplifier having an adjustable gain output. The RF amplifier may be configured to receive and amplify an incoming RF signal. The receiver also includes an intermediate frequency (IF) amplifier having an adjustable gain output. The IF amplifier may be configured to receive and amplify an IF signal that corresponds to the RF signal. The receiver also includes a gain control unit that is coupled to the RF amplifier and the IF amplifier. The gain control unit may be configured to independently adjust the gain of each of the RF amplifier and the IF amplifier, dependent upon a peak output level of both the RF amplifier and the IF amplifier.

    Abstract translation: 诸如调频（FM）接收机的无线电接收机例如包括具有可调增益输出的射频（RF）放大器。 RF放大器可以被配置为接收和放大输入RF信号。 接收机还包括具有可调增益输出的中频（IF）放大器。 IF放大器可以被配置为接收和放大对应于RF信号的IF信号。 接收机还包括耦合到RF放大器和IF放大器的增益控制单元。 增益控制单元可以被配置为独立地调节每个RF放大器和IF放大器的增益，这取决于RF放大器和IF放大器的峰值输出电平。

    Mechanism for controlling amplifier gain in a radio receiver
    7.
    发明申请
    Mechanism for controlling amplifier gain in a radio receiver 失效
    控制无线电接收机放大器增益的机制

    公开(公告)号：US20080160947A1

    公开(公告)日：2008-07-03

    申请号：US11648413

    申请日：2006-12-29

    Applicant: Chunyu Xin ,  G. Tyson Tuttle ,  Scott D. Willingham ,  Peter J. Vancorenland

    Inventor： Chunyu Xin ,  G. Tyson Tuttle ,  Scott D. Willingham ,  Peter J. Vancorenland

    IPC: H04B1/06

    CPC classification number: H03G3/3068

    Abstract: A radio receiver such as a frequency modulation (FM) receiver, for example, includes a radio frequency (RF) amplifier having an adjustable gain output. The RF amplifier may be configured to receive and amplify an incoming RF signal. The receiver also includes an intermediate frequency (IF) amplifier having an adjustable gain output. The IF amplifier may be configured to receive and amplify an IF signal that corresponds to the RF signal. The receiver also includes a gain control unit that is coupled to the RF amplifier and the IF amplifier. The gain control unit may be configured to independently adjust the gain of each of the RF amplifier and the IF amplifier, dependent upon a peak output level of both the RF amplifier and the IF amplifier.

    Abstract translation: 诸如调频（FM）接收机的无线电接收机例如包括具有可调增益输出的射频（RF）放大器。 RF放大器可以被配置为接收和放大输入RF信号。 接收机还包括具有可调增益输出的中频（IF）放大器。 IF放大器可以被配置为接收和放大对应于RF信号的IF信号。 接收机还包括耦合到RF放大器和IF放大器的增益控制单元。 增益控制单元可以被配置为根据RF放大器和IF放大器的峰值输出电平独立地调节每个RF放大器和IF放大器的增益。

    Method for extending the output range of pulse-width based phase detectors
    8.
    发明授权
    Method for extending the output range of pulse-width based phase detectors 失效
    扩展基于脉冲宽度的相位检测器的输出范围的方法

    公开(公告)号：US5952853A

    公开(公告)日：1999-09-14

    申请号：US997148

    申请日：1997-12-23

    Applicant: Scott D. Willingham ,  William J. McFarland

    Inventor： Scott D. Willingham ,  William J. McFarland

    IPC: G01R25/00 ,  H03D13/00 ,  H03K5/26 ,  H03L7/081 ,  H03L7/085 ,  H03L7/089

    CPC classification number: G01R25/00 ,  H03D13/004 ,  H03L7/081 ,  H03L7/089

    Abstract: A circuit for generating a signal that is proportional to the phase difference between a reference signal and a variable frequency signal. The circuit includes a reference generating circuit for generating N phase shifted reference signals from the reference signal. Each of the phase shifted reference signals has the same frequency and a different phase. The phase of the n.sup.th one of the phase shifted reference signals is equal to 360n/N degrees, where N>1 and n runs from 0 to N-1. A phase detection circuit generates a phase output signal proportional to the phase difference between the variable frequency signal and the phase shifted reference signal currently being outputted by the reference generating circuit. The phase output signal has value of I when the output signal corresponds to a phase difference of 360/N degrees. An overflow detection circuit determines when the phase output signal has an absolute value greater than I and generates a count signal and a phase adjustment signal when this situation is detected. The phase adjustment signal is coupled to the reference generating circuit and causes the reference generating circuit to select a new phase shifted reference signal. A counter is then incremented/decremented to track the accumulated phase adjustments. A digital to analog converter converts the digital value in the counter to a signal having an amplitude equal to MI, where M is the digital value. A sum circuit adds this signal to the phase output signal.

    Abstract translation: 用于产生与参考信号和可变频率信号之间的相位差成比例的信号的电路。 电路包括用于从参考信号产生N个相移参考信号的参考产生电路。 每个相移参考信号具有相同的频率和不同的相位。 第n个相移参考信号的相位等于360n / N度，其中N≥1且n从0到N-1。 相位检测电路产生与参考发生电路当前正在输出的可变频率信号和相移参考信号之间的相位差成比例的相位输出信号。 当输出信号对应于360 / N度的相位差时，相位输出信号的值为I。 溢出检测电路确定相位输出信号何时具有大于I的绝对值，并且当检测到这种情况时产生计数信号和相位调整信号。 相位调整信号耦合到参考产生电路，并使基准产生电路选择新的相移基准信号。 然后计数器递增/递减，以跟踪累积的相位调整。 数模转换器将计数器中的数字值转换为幅度等于MI的信号，其中M是数字值。 总和电路将该信号添加到相位输出信号。

    DIFFERENTIAL LOOPSTICK ANTENNA CONFIGURATION
    9.
    发明申请
    DIFFERENTIAL LOOPSTICK ANTENNA CONFIGURATION 有权
    差分LOOPSTICK天线配置

    公开(公告)号：US20130303102A1

    公开(公告)日：2013-11-14

    申请号：US13468837

    申请日：2012-05-10

    Applicant: Michael S. Johnson ,  Russell Croman ,  Scott D. Willingham

    Inventor： Michael S. Johnson ,  Russell Croman ,  Scott D. Willingham

    IPC: H04B1/18 ,  H01Q1/50 ,  H01Q3/24 ,  H01Q7/00

    CPC classification number: H01Q7/00 ,  H03F3/45475 ,  H03F2200/294 ,  H04B1/18

    Abstract: A long-wave or medium-wave receiver receives a first signal from a first terminal of a loopstick antenna on a positive antenna input terminal of the receiver and receives a second signal from a second terminal of the loopstick antenna on a negative antenna input terminal of the receiver. The first and second signals are processed differentially in the receiver. The receiver may optionally be configured to operate in either a differential mode or a single-ended mode by setting switches to selectively connect one of the antenna input terminals to ground in single-ended mode.

    Abstract translation: 长波或中波接收器从接收机的正天线输入端子上的环形天线的第一端子接收第一信号，并且在负天线输入端子上接收来自环形天线的第二端子的第二信号 收件人。 第一和第二信号在接收机中进行差分处理。 接收机可以可选地被配置为以差分模式或单端模式操作，通过设置开关以选择性地将天线输入端子中的一个连接到单端模式的接地。

    Configurable radio front end
    10.
    发明授权
    Configurable radio front end 有权
    可配置无线电前端

    公开(公告)号：US08254862B2

    公开(公告)日：2012-08-28

    申请号：US12649006

    申请日：2009-12-29

    Applicant: Dan B. Kasha ,  Jing Li ,  Russell Croman ,  Michael Johnson ,  Scott D. Willingham

    Inventor： Dan B. Kasha ,  Jing Li ,  Russell Croman ,  Michael Johnson ,  Scott D. Willingham

    IPC: H04B1/18

    CPC classification number: H04B1/28 ,  H04B1/18

    Abstract: In one embodiment, the present invention includes a single chip radio tuner, which may be adapted within an integrated circuit (IC). The tuner may be provided with a configurable front end to receive and process a radio frequency (RF) signal via a signal path. This configurable front end may be differently controlled depending on a particular radio implementation in which the tuner is adapted.

    Abstract translation: 在一个实施例中，本发明包括可以在集成电路（IC）内部适配的单芯片无线电调谐器。 调谐器可以设置有可配置的前端，以经由信号路径接收和处理射频（RF）信号。 取决于调谐器所适用的特定无线电实施方式，该可配置前端可以被不同地控制。

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