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1. 发明授权

US06611170B2 Angular rate amplifier with noise shield technology 有权
公开(公告)号：US06611170B2
公开(公告)日：2003-08-26
申请号：US09783240
申请日：2001-02-13
申请人： Hiram McCall , Ching-Fang Lin
发明人： Hiram McCall , Ching-Fang Lin
IPC分类号： H03F100
CPC分类号： G01C21/16
摘要： An angular rate amplifier, which is adapted to amplify useful signals, which are proportional to rotation motion of a carrier, and to suppress noise, which is not proportional to rotation motion of a carrier, in output signals from an angular rate producer, including a MEMS (MicroElectronicMechanicalSystem) angular rate sensor. Compared with a conventional amplifiers, a noise shield and a co-resident trans impedance amplifier are utilized to achieve high signal/noise ratio. Furthermore, the angular rate producer and the noise shield and a co-resident trans impedance amplifier are used in a micro inertial measurement unit (IMU) to improve performance of the micro inertial measurement unit to form highly accurate, digital angular increments, velocity increments, position, velocity, attitude, and heading measurements of a carrier under dynamic environments.

2. 发明授权

US06556080B1 Feedforward notch filter 有权
标题翻译：前馈陷波滤波器
公开(公告)号：US06556080B1
公开(公告)日：2003-04-29
申请号：US10017985
申请日：2001-12-13
申请人： Robert E. Stengel , Scott A. Olson
发明人： Robert E. Stengel , Scott A. Olson
IPC分类号： H03F100
CPC分类号： H03F1/3223
摘要： A feedforward amplifier and notch filter (150) according to the present invention uses a direct coupling of an amplifier stage (158) with the amplifier's load (RL). The main amplifier (202) is coupled through a transmission line (210) to the load. This direct coupled amplifier stage (158) is driven by an signal that induces a very low impedance in parallel with the load at the receive frequency, but appears as an open circuit at the desired frequencies so that the desired signal from the main amplifier is virtually unaffected while output components at the receive frequency are cancelled.
摘要翻译：根据本发明的前馈放大器和陷波滤波器（150）使用放大器级（158）与放大器负载（RL）的直接耦合。主放大器（202）通过传输线（210）耦合到负载。该直接耦合放大器级158由一个信号驱动，该信号在接收频率处引起与负载并联的非常低的阻抗，但是以期望的频率显现为开路，使得来自主放大器的期望信号实际上不受影响，而接收频率的输出组件被取消。

3. 发明授权

US06496065B1 Linear amplifier using frequency 2nd order intermodulation feed-forwarding method 失效
标题翻译：线性放大器采用频率二阶互调馈送方式
公开(公告)号：US06496065B1
公开(公告)日：2002-12-17
申请号：US09699344
申请日：2000-10-31
申请人： Bum-man Kim , Youn-goo Yang , Sang-hoon Kang
发明人： Bum-man Kim , Youn-goo Yang , Sang-hoon Kang
IPC分类号： H03F100
CPC分类号： H03F3/193 , H03F1/3205
摘要： A linear amplifier using a low frequency 2nd intermodulation feed-forwarding method to offset the 3rd intermodulation component of a fundamental signal is provided. This linear amplifier includes a transistor for amplifying the power of the fundamental signal, a first filter unit, one end of which is connected to the gate of the transistor, for filtering a 2nd order intermodulation signal from the fundamental signal, a low frequency amplifier connected to the other end of the first filter unit, for amplifying the 2nd order intermodulation signal with a predetermined voltage gain, and a second filter unit connected in series between the output port of the low frequency amplifier and the drain output port of the transistor, for filtering the amplified 2nd intermodulation signal and feeding the same to the output port of the transistor. This linear amplifier feeds the low frequency 2nd order intermodulation component of a fundamental signal forward to the output port of a power amplification transistor, thereby maintaining the stable characteristics of a circuit adopting a feed-forwarding method and favorably offsetting a 3rd intermodulation component that is adjacent to the frequency of the fundamental signal.
摘要翻译：提供了使用低频第二互调馈送转发方法来偏移基频信号的第三互调分量的线性放大器。该线性放大器包括用于放大基本信号的功率的晶体管，第一滤波器单元，其一端连接到晶体管的栅极，用于从基本信号滤波二阶互调信号，连接的低频放大器到第一滤波器单元的另一端，用于放大具有预定电压增益的二阶互调信号，以及串联连接在低频放大器的输出端口和晶体管的漏极输出端口之间的第二滤波器单元，用于对放大的第二互调信号进行滤波并将其馈送到晶体管的输出端口。该线性放大器将基本信号的低频二阶互调分量向前馈送到功率放大晶体管的输出端口，从而保持电路的稳定特性采用馈送方法，并有利地抵消相邻的第三互调分量到基频信号的频率。

4. 发明授权

US06414559B1 Single package temperature compensated electronic device 有权
标题翻译：单包温度补偿电子设备
公开(公告)号：US06414559B1
公开(公告)日：2002-07-02
申请号：US09706069
申请日：2000-11-03
申请人： Douglas Gene Cole , Ranganath Bagade , Titkwan Hui
发明人： Douglas Gene Cole , Ranganath Bagade , Titkwan Hui
IPC分类号： H03F100
CPC分类号： H03L1/026 , H03J2200/10 , H03L1/028
摘要： A temperature compensated crystal oscillation circuit adapted to be contained within a small device package and providing an output frequency accuracy of approximately +/−2 ppm over a temperature range or less than 2 minutes per year over the temperature range. The device includes crystal and a single integrated circuit wherein the integrated circuit has a temperature sensing circuit with a digital output, control circuitry, a memory circuit and a switched capacitor array for compensating the oscillation of the crystal oscillator over temperature.
摘要翻译：温度补偿晶体振荡电路适于包含在小型器件封装中，并且在温度范围内每年提供大约+/- 2ppm的输出频率精度，或者在温度范围内每年少于2分钟。该器件包括晶体和单个集成电路，其中集成电路具有带有数字输出的温度感测电路，控制电路，存储器电路和用于在温度下补偿晶体振荡器的振荡的开关电容器阵列。

5. 发明授权

US06232838B1 Feed-forward amplifier and method of compensating non-linear distortion in the same 有权
标题翻译：前馈放大器和补偿非线性失真的方法相同
公开(公告)号：US06232838B1
公开(公告)日：2001-05-15
申请号：US09634167
申请日：2000-08-09
申请人： Katsuyoshi Sugimoto
发明人： Katsuyoshi Sugimoto
IPC分类号： H03F100
CPC分类号： H03F1/3229
摘要： A first vector modulator is inserted in the input route of an amplifier to vary the input signal of the amplifier. A second vector amplifier is inserted in the second signal route to vary the input signal of the second signal route. A controller controls the first vector modulator to minimize the distortion of the amplifier and controls the second modulator to equalize a change in input signal of the amplifier due to the control operation to a change in input signal of the second signal route.
摘要翻译：在放大器的输入路径中插入第一矢量调制器以改变放大器的输入信号。在第二信号路径中插入第二矢量放大器以改变第二信号路由的输入信号。控制器控制第一矢量调制器以最小化放大器的失真，并且控制第二调制器以使得由于控制操作使放大器的输入信号的变化与第二信号路由的输入信号的变化相等。

6. 发明授权

US06819176B1 High power, wide bandwidth operational amplifier 有权
标题翻译：大功率，宽带宽运算放大器
公开(公告)号：US06819176B1
公开(公告)日：2004-11-16
申请号：US10617463
申请日：2003-07-11
申请人： Jerold Lee
发明人： Jerold Lee
IPC分类号： H03F100
CPC分类号： H03F1/34
摘要： A high bandwidth operational amplifier architecture has three control loops, which are combined via a voltage-follower-configured field effect transistor. The first control loop is an instantaneous main amplification path and employs positive feedback-based Vgs correction of the output transistor. The second control loop has a bandwidth considerably lower than the first loop and employs negative feedback to correct for long term drift errors. The third control loop, utilizing negative feedback, is a fast path having a bandwidth that overlaps the bandwidth of the first control loop, and corrects for overshoot and undershoot in the main amplification path.
摘要翻译：高带宽运算放大器架构具有三个控制回路，通过电压跟随器配置的场效应晶体管组合。第一个控制环路是一个瞬时的主放大路径，采用正反馈的输出晶体管的Vgs校正。第二个控制回路的带宽明显低于第一个回路，采用负反馈来纠正长期漂移误差。使用负反馈的第三控制回路是具有与第一控制回路的带宽重叠的带宽的快速路径，并且校正主放大路径中的过冲和下冲。

7. 发明授权

US06762645B1 Low power audio device 有权
标题翻译：低功率音频设备
公开(公告)号：US06762645B1
公开(公告)日：2004-07-13
申请号：US09202596
申请日：1998-12-17
申请人： Duncan Andrew Grant
发明人： Duncan Andrew Grant
IPC分类号： H03F100
CPC分类号： H03F3/19 , H03F3/2171 , H03F3/2173
摘要： An electrical device has an audio output, and the electrical device includes a radio receiver circuit, a class D amplifier, and an audio output element. The radio receiver circuit operates at a lower supply voltage than the amplifier. Moreover, the voltage supply for the radio receiver circuit is generated by a converter operating in a switched manner.
摘要翻译：电气设备具有音频输出，并且电气设备包括无线电接收器电路，D类放大器和音频输出元件。无线电接收器电路在比放大器低的电源电压下工作。此外，无线电接收器电路的电压源由以切换方式操作的转换器产生。

8. 发明授权

US06573792B1 Feedforward amplifier 有权
标题翻译：前馈放大器
公开(公告)号：US06573792B1
公开(公告)日：2003-06-03
申请号：US10017984
申请日：2001-12-13
申请人： Scott A. Olson , Robert E. Stengel
发明人： Scott A. Olson , Robert E. Stengel
IPC分类号： H03F100
CPC分类号： H03F1/3229
摘要： A feedforward amplifier (150) according to the present invention uses a direct coupling of an amplifier stage (158) with the amplifier's load (RL). The main amplifier (202) is coupled through a transmission line (210) to the load. This direct coupled amplifier stage (158) is driven by a signal that induces a very low impedance in parallel with the load to the error signal, but appears as an open circuit to the desired signal so that the desired signal from the main amplifier is substantially unaffected.
摘要翻译：根据本发明的前馈放大器（150）使用放大器级（158）与放大器的负载（RL）的直接耦合。主放大器（202）通过传输线（210）耦合到负载。该直接耦合放大器级158由一个信号驱动，该信号引起与该误差信号的负载并联的非常低的阻抗，但是作为对所需信号的开路呈现，使得来自主放大器的所需信号基本上不受影响

9. 发明授权

US06424215B1 High efficiency closed loop feed forward amplifier 失效
标题翻译：高效闭环前馈放大器
公开(公告)号：US06424215B1
公开(公告)日：2002-07-23
申请号：US09834088
申请日：2001-04-12
申请人： Christopher W Rice
发明人： Christopher W Rice
IPC分类号： H03F100
CPC分类号： H03F1/3235
摘要： High efficiency and high power output are attained in a multi-tone FF RF amplifier by eliminating fundamentals in a first loop and then operating on the IMD products only in a second loop. Since lower power tones are adjusted in the IMD product reduction, less complex, lower power processing circuitry is required and higher efficiency is realized since both amplifiers add in-phase and approximately equally at the RF output.
摘要翻译：通过在第一个循环中消除基本原理，然后仅在第二个循环中对IMD产品进行操作，可以在多色FF RF放大器中实现高效率和高功率输出。由于在IMD产品减少中调整了较低功耗的音调，因此需要较低复杂度的较低功耗处理电路，并且由于两个放大器在RF输出端同时增加大致相等的效率，因此实现更高的效率。

10. 发明授权

US06424214B1 Strain error compensation amplifier 有权
公开(公告)号：US06424214B1
公开(公告)日：2002-07-23
申请号：US09727780
申请日：2000-12-04
申请人： Yasuo Sera , Takashi Uchida , Terufumi Nagano , Masahiro Himono
发明人： Yasuo Sera , Takashi Uchida , Terufumi Nagano , Masahiro Himono
IPC分类号： H03F100
摘要： According to the present invention, there is provided a strain (error) compensation amplifier which realizes miniaturization, loss reduction, and cost reduction. In the strain (error) compensation amplifier, by unifying at least two or more of a power distributor, a first delay unit, a first power synthesizer, a second delay unit, a second power synthesizer, a directional coupler, an isolator and a terminating resistor, the miniaturization, loss reduction, and cost reduction are realized.

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