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    • 1. 发明授权
    • Linear power amplifier with automatic gate/base bias control for optimum
efficiency
    • 线性功率放大器,具有自动门/基极偏置控制,实现最佳效率
    • US5724005A
    • 1998-03-03
    • US637999
    • 1996-04-25
    • Young-Kai ChenJenshan Lin
    • Young-Kai ChenJenshan Lin
    • H03G3/20H03F1/02H04B1/40H04B7/26H03G3/30
    • H03F1/0261H03F2200/372
    • A dynamic power amplifier advantageously employed in a wireless terminal for transferring and receiving signals from a base terminal includes an input amplifier adapted to receive an input signal having a given power signal level corresponding to the distance of said wireless terminal to the terminal and adapted to provide an amplifier output signal having a given power output signal level. The dynamic amplifier further includes a power sensor configured to receive the power output signal and to generate a power indication signal corresponding to the power output signal, and a converter adapted to receive the power indication signal in order to generate a biasing signal corresponding to the power indication signal. The biasing signal is applied to the input amplifier so that the operating bias point of the power amplifier varies as a function of the power indication signal.
    • 在无线终端中有利地用于从基站发送和接收信号的动态功率放大器包括输入放大器,其适于接收具有与所述无线终端到终端的距离相对应的给定功率信号电平的输入信号,并适于提供 具有给定功率输出信号电平的放大器输出信号。 动态放大器还包括功率传感器,其被配置为接收功率输出信号并产生对应于功率输出信号的功率指示信号,以及转换器,其适于接收功率指示信号,以产生对应于功率的偏置信号 指示信号。 偏置信号被施加到输入放大器,使得功率放大器的工作偏置点根据功率指示信号而变化。
    • 4. 发明授权
    • Low-complexity adaptive controller
    • 低复杂度自适应控制器
    • US5940291A
    • 1999-08-17
    • US853083
    • 1997-05-08
    • Joel L. DawsonJenshan LinYoung-Kai Chen
    • Joel L. DawsonJenshan LinYoung-Kai Chen
    • G05B13/02
    • G05B13/021
    • In accordance with one embodiment of the present intention, an adaptive feedback controller is configured to substantially reduce an error control signal defined by the difference between a command signal and the output signal of a controlled device. The adaptive controller comprises a step generator circuit configured to provide a control signal which is employed to vary the input signal received by the controlled device, The control signal is substantially in the shape of a ramp signal having a given slew rate. An adaptive slew rate computation circuit is coupled to the step generator so as to provide a slew rate compensation signal to the step generator to increase the slew rate of the control signal, when the controlled device is responding to a substantially fast varying input signal. The slew rate compensation circuit decreases the slew rate of the control signal, when the controlled device is responding to a slow varying input signal.
    • 根据本意图的一个实施例,自适应反馈控制器被配置为基本上减少由控制设备的命令信号和输出信号之间的差定义的误差控制信号。 自适应控制器包括步进发生器电路,其被配置为提供用于改变由受控设备接收的输入信号的控制信号。控制信号基本上是具有给定转换速率的斜坡信号的形状。 自适应转换速率计算电路耦合到步进发生器,以便当受控装置响应于基本上快速变化的输入信号时,向步进发生器提供转换速率补偿信号以增加控制信号的转换速率。 当控制装置响应慢变化的输入信号时,转换速率补偿电路降低控制信号的转换速率。
    • 5. 发明授权
    • Random body movement cancellation for non-contact vital sign detection
    • 随机身体动作取消非接触式生命体征检测
    • US08721554B2
    • 2014-05-13
    • US12668700
    • 2008-07-11
    • Jenshan LinChangzhi LiYa-Chi Liu
    • Jenshan LinChangzhi LiYa-Chi Liu
    • G01S13/56G01S13/62G01S13/60A61B5/055
    • A61B5/7214A61B5/0205A61B5/024A61B5/05A61B5/0507A61B5/0816A61B5/6823A61B5/7278A61B5/742G01S7/032G01S7/354G01S7/40G01S13/34G01S13/536G01S13/87G01S13/88G06F17/14G06F19/00G06F19/3418G16H80/00
    • A method and system for cancelling body movement effect for non-contact vital sign detection is described. The method begins with sending on a first electromagnetic wave transceiver a first electromagnetic signal with a first frequency to a first side of a body, such as a person or animal. Simultaneously using a second electromagnetic wave transceiver a second electromagnetic signal is sent with a second frequency to a second side of a body, wherein the first frequency and the second frequency are different frequencies. A first reflected electromagnetic signal reflected back in response to the first electromagnetic wave on the first transceiver is received and a first baseband complex signal is extracted. Likewise a second reflected electromagnetic signal reflected back in response to the second electromagnetic wave on the second transceiver is received and a second baseband complex signal is extracted. The first baseband complex signal is mathematically combined with the second baseband complex signal to cancel out a Doppler frequency drift therebetween to yield a periodic Doppler phase effect.
    • 描述了用于消除非接触式生命体检测的身体运动效应的方法和系统。 该方法开始于在第一电磁波收发器上发送具有第一频率的第一电磁信号到诸如人或动物的身体的第一侧。 同时使用第二电磁波收发器,第二电磁信号以第二频率发送到身体的第二侧,其中第一频率和第二频率是不同的频率。 接收响应于第一收发器上的第一电磁波反射回的第一反射电磁信号,并且提取第一基带复信号。 类似地,接收响应于第二收发器上的第二电磁波反射回的第二反射电磁信号,并且提取第二基带复信号。 第一基带复信号与第二基带复信号数学地组合以抵消其间的多普勒频移,产生周期性多普勒相位效应。
    • 7. 发明申请
    • Random Body Movement Cancellation for Non-Contact Vital Sign Detection
    • 随机身体移动取消非接触式生命体征检测
    • US20100198083A1
    • 2010-08-05
    • US12668700
    • 2008-07-11
    • Jenshan LinChangzhi LiYa-Chi Liu
    • Jenshan LinChangzhi LiYa-Chi Liu
    • A61B5/0205
    • A61B5/7214A61B5/0205A61B5/024A61B5/05A61B5/0507A61B5/0816A61B5/6823A61B5/7278A61B5/742G01S7/032G01S7/354G01S7/40G01S13/34G01S13/536G01S13/87G01S13/88G06F17/14G06F19/00G06F19/3418G16H80/00
    • A method and system for cancelling body movement effect for non-contact vital sign detection is described. The method begins with sending on a first electromagnetic wave transceiver a first electromagnetic signal with a first frequency to a first side of a body, such as a person or animal. Simultaneously using a second electromagnetic wave transceiver a second electromagnetic signal is sent with a second frequency to a second side of a body, wherein the first frequency and the second frequency are different frequencies. A first reflected electromagnetic signal reflected back in response to the first electromagnetic wave on the first transceiver is received and a first baseband complex signal is extracted. Likewise a second reflected electromagnetic signal reflected back in response to the second electromagnetic wave on the second transceiver is received and a second baseband complex signal is extracted. The first baseband complex signal is mathematically combined with the second baseband complex signal to cancel out a Doppler frequency drift therebetween to yield a periodic Doppler phase effect.
    • 描述了用于消除非接触式生命体检测的身体运动效应的方法和系统。 该方法开始于在第一电磁波收发器上发送具有第一频率的第一电磁信号到诸如人或动物的身体的第一侧。 同时使用第二电磁波收发器,第二电磁信号以第二频率发送到身体的第二侧,其中第一频率和第二频率是不同的频率。 接收响应于第一收发器上的第一电磁波反射回的第一反射电磁信号,并且提取第一基带复信号。 类似地,接收响应于第二收发器上的第二电磁波反射回的第二反射电磁信号,并且提取第二基带复信号。 第一基带复信号与第二基带复信号数学地组合以抵消其间的多普勒频移,产生周期性多普勒相位效应。
    • 9. 发明申请
    • WIRELESS DEVICE HAVING A DUAL-FUNCTION BATTERY ANTENNA
    • 具有双功能电池天线的无线设备
    • US20090303138A1
    • 2009-12-10
    • US12375438
    • 2007-07-27
    • Jenshan LinHuikai Xie
    • Jenshan LinHuikai Xie
    • H01Q1/24H01Q1/40
    • H01Q1/44H01Q1/24
    • A wireless electronic device is provided that includes an encapsulation and a substrate enclosed within the encapsulation. The substrate has first and second opposing regions and electronic circuitry formed on or embedded in the substrate. The wireless electronic device further includes a signal chip for generating a signal under the control of the electronic circuit, the signal chip being connected to the first region of the substrate. Additionally, the wireless electronic device includes a dual-function battery antenna mounted to the second region of the substrate. The dual-function battery antenna supplies electrical power to the electronic circuitry and/or the signal chip. The dual-function battery antenna operates as an antenna for transmitting and/or receiving wireless signals conveyed from and/or received by the wireless electronic device.
    • 提供了一种无线电子设备,其包括封装和封装在封装内的衬底。 衬底具有形成在衬底上或嵌入衬底中的第一和第二相对区域和电子电路。 无线电子设备还包括用于在电子电路的控制下产生信号的信号芯片,信号芯片连接到基板的第一区域。 另外,无线电子设备包括安装到基板的第二区域的双功能电池天线。 双功能电池天线为电子电路和/或信号芯片提供电力。 双功能电池天线作为用于发送和/或接收从无线电子设备传送和/或接收的无线信号的天线。