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1. 发明授权

US08693959B1 System and apparatus for a direct conversion receiver and transmitter 有权
标题翻译：用于直接转换接收机和发射机的系统和设备
公开(公告)号：US08693959B1
公开(公告)日：2014-04-08
申请号：US09621407
申请日：2000-07-21
申请人： William J. Domino , Scott A. Griffith , Dmitriy Rozenblit
发明人： William J. Domino , Scott A. Griffith , Dmitriy Rozenblit
IPC分类号： H04B1/40
CPC分类号： H03C3/0966 , H03C3/0941 , H03C3/0958 , H03D3/007 , H04B1/30 , H04B1/408 , H04L27/20
摘要： A system for transmitting and receiving data is provided. The system includes a direct-conversion receiver that receives a signal modulated on a carrier frequency signal. The direct-conversion receiver includes one or more subharmonic local oscillator mixers. A local oscillator is connected to the direct conversion receiver, and generates a signal having a frequency equal to a subharmonic of the carrier frequency signal. A transmitter is connected to the local oscillator, which uses the local oscillator signal to transmit outgoing data.
摘要翻译：提供了一种用于发送和接收数据的系统。该系统包括接收在载波频率信号上调制的信号的直接转换接收机。直接转换接收器包括一个或多个次谐波本地振荡器混频器。本地振荡器连接到直接转换接收器，并且产生具有等于载波频率信号的次谐波的频率的信号。发送器连接到本地振荡器，其使用本地振荡器信号来发送输出数据。

2. 发明授权

US06466770B1 BALUN circuit for combining differential power amplifier outputs 有权
标题翻译：用于组合差分功率放大器输出的BALUN电路
公开(公告)号：US06466770B1
公开(公告)日：2002-10-15
申请号：US09386863
申请日：1999-08-31
申请人： Scott A. Griffith , Trang N. Trinh
发明人： Scott A. Griffith , Trang N. Trinh
IPC分类号： H04B102
CPC分类号： H03H7/42 , H04B1/0458
摘要： A BALUN circuit comprising a lead network coupled to the positive phase output of a differential power amplifier, a negative phase output coupled to the negative phase output of the differential amplifier, and a delay element coupled in series with the lag network. The output of the lead network and the delay element are combined to form a single-ended output. The lag and lead networks may adjust the output impedances of the positive and negative phase outputs so that the output impedance of the single-ended output is set to a desired value. In one implementation, selected components of the lag and lead networks, and the delay element, comprise printed elements.
摘要翻译：一种BALUN电路，包括耦合到差分功率放大器的正相输出的引线网络，耦合到差分放大器的负相输出的负相输出以及与滞后网络串联耦合的延迟元件。引线网络和延迟元件的输出组合形成单端输出。滞后和引线网络可以调节正和负相输出的输出阻抗，使得单端输出的输出阻抗被设置为期望值。在一个实现中，滞后和引导网络的所选择的组件以及延迟元件包括打印元件。

3. 发明授权

US5966051A Low voltage medium power class C power amplifier with precise gain control 失效
标题翻译：具有精确增益控制的低电压中功率C类功率放大器
公开(公告)号：US5966051A
公开(公告)日：1999-10-12
申请号：US64114
申请日：1998-04-21
申请人： Scott A. Griffith , San Chin
发明人： Scott A. Griffith , San Chin
IPC分类号： H03F3/191 , H03G1/00 , H03G3/10
CPC分类号： H03G1/0023 , H03F3/191
摘要： A non-linear power amplifier for amplifying a constant envelope phase modulation component of a modulation signal and combining an amplitude envelope component of the modulation signal into the amplified constant envelope phase modulation component and method for performing the same. The power amplifier receives a constant envelope phase modulation signal and transmits the signal through a pair of amplifier stages which are impedance matched together. The first amplifier stage has a fixed gain which drives an impedance load and, in turn, the second amplifier stage. A variable resistance device is connected between a base of an amplifying transistor in the second amplifier stage and electrical ground for variably controlling the gain of the second amplifier stage by variably controlling the base-to-ground resistance of the amplifying transistor in the second amplifier stage. By varying the base-to-ground resistance of the amplifying transistor, the pulse width, gain, and power output of the constant envelope phase modulation signal can be controlled. The amplitude envelope component of the modulation signal is then reintroduced into the amplified constant envelope phase modulation component at a low current point between the base of the amplifying transistor and the variable resistance device, which enables the power amplifier to be operated with a low current consumption.
摘要翻译：一种非线性功率放大器，用于放大调制信号的恒定包络相位调制分量，并将调制信号的幅度包络分量组合成放大的恒定包络相位调制分量及其执行方法。功率放大器接收恒定包络相位调制信号，并通过阻抗匹配在一起的一对放大器级发送信号。第一放大器级具有固定增益，其驱动阻抗负载，反之又驱动第二放大级。可变电阻器件连接在第二放大器级中的放大晶体管的基极和电接地之间，用于通过可变地控制第二放大器级中的放大晶体管的基极对地电阻来可变地控制第二放大器级的增益。通过改变放大晶体管的基极 - 接地电阻，可以控制恒定包络相位调制信号的脉冲宽度，增益和功率输出。然后，调制信号的幅度包络分量在放大晶体管的基极与可变电阻器件之间的低电流点被重新引入放大的恒定包络相位调制分量，这使得功率放大器能够以低电流消耗。

4. 发明授权

US06680653B2 VCO tuning curve compensated charge pump current synthesizer 有权
标题翻译： VCO调谐曲线补偿电荷泵电流合成器
公开(公告)号：US06680653B2
公开(公告)日：2004-01-20
申请号：US09742256
申请日：2000-12-20
申请人： Scott A. Griffith , Trang N. Trinh , Pete Good
发明人： Scott A. Griffith , Trang N. Trinh , Pete Good
IPC分类号： H03L700
CPC分类号： H03L7/18 , H03L7/0898
摘要： A system provided for controlling an output frequency of a voltage controlled oscillator relative to a reference frequency. A method includes the steps of detecting a phase error between a divided output of the voltage controlled oscillator and the reference frequency, pumping a frequency control input of the voltage controlled oscillator with the phase error and adjusting a pumping gain based upon a magnitude of the frequency control input to the voltage controlled oscillator. This apparatus includes a phase detector adapted to detect the phase error between the divided output of the voltage controlled oscilator and the reference frequency and a charge pump adapted to pump the frequency control input of the voltage controlled oscillator with the phase error. The apparatus also includes a gain controller adapted to adjust the pumping gain based upon the magnitude of the frequency control input to the voltage controlled oscillator.
摘要翻译：一种用于控制压控振荡器相对于参考频率的输出频率的系统。一种方法包括以下步骤：检测压控振荡器的分压输出与参考频率之间的相位误差，以相位误差泵送压控振荡器的频率控制输入，并根据频率的幅度调节泵浦增益控制输入到压控振荡器。该装置包括相位检测器，用于检测压控振荡器的分频输出与参考频率之间的相位误差，以及电荷泵，其适于泵送压控振荡器的频率控制输入，相位误差。该装置还包括增益控制器，其适于基于对压控振荡器的频率控制输入的幅度来调节泵浦增益。

5. 发明授权

US06552617B1 Dual-tune input integrated VCO on a chip 有权
标题翻译：双路输入集成VCO在芯片上
公开(公告)号：US06552617B1
公开(公告)日：2003-04-22
申请号：US09706921
申请日：2000-11-06
申请人： Scott A. Griffith , Pete Good , John S. Walley
发明人： Scott A. Griffith , Pete Good , John S. Walley
IPC分类号： H03L712
CPC分类号： H03L7/189 , H03L2207/06
摘要： A system for controlling an output frequency of a dual-input voltage controlled oscillator relative to a reference frequency is provided. The method includes the step of coupling a first tune control signal to a first input of the dual-input voltage controlled oscillator. The method further includes the steps of dividing the output frequency of the dual-input voltage controlled oscillator by a value substantially equal to a second tune control signal, comparing a phase of the divided output frequency with a phase of the reference frequency and coupling a phase difference of the compared phases to a second input of the dual-input voltage controlled oscillator.
摘要翻译：提供了一种用于控制双输入压控振荡器相对于参考频率的输出频率的系统。该方法包括将第一调谐控制信号耦合到双输入压控振荡器的第一输入端的步骤。该方法还包括以下步骤：将双输入压控振荡器的输出频率除以基本上等于第二调谐控制信号的值，将分频输出频率的相位与参考频率的相位进行比较，并将相位比较相位与双输入压控振荡器的第二输入的差。

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