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公开(公告)号:US07059061B2
公开(公告)日:2006-06-13
申请号:US10683842
申请日:2003-10-10
申请人: Don Gregory French
发明人: Don Gregory French
IPC分类号: G01B3/02
CPC分类号: E04G21/1891
摘要: The Framer's Layout and Cutting Guide was designed to simplify the house framing process by creating easily recognizable icons, representing pre-measured for accuracy basic framing functions, for both layout and cutting, which, when superimposed on/integrated—with a standard tape measure, would clean up and speed up the framing process, making it easier for the professional carpenter, as well as for the do-it-yourself homeowner.
摘要翻译: Framer的布局和切割指南旨在通过创建易于识别的图标来简化房屋框架过程,这些图标表示预先测量的基本框架功能,用于布局和切割,当通过标准卷尺叠加/集成时, 将清理和加快框架过程,使专业木匠更容易,以及自己动手的房主。
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公开(公告)号:US6147555A
公开(公告)日:2000-11-14
申请号:US174715
申请日:1998-10-19
申请人: Richard D. Posner , Kwang Kim , Stefan Klein , Wayne Roberts , Gregory French
发明人: Richard D. Posner , Kwang Kim , Stefan Klein , Wayne Roberts , Gregory French
CPC分类号: H03F1/3241 , H03F1/3229
摘要: A method and apparatus reduce the out-of-band frequency components of an RF amplified signal, preferably a CDMA signal, which has a carrier frequency which is not known in advance. The apparatus and method feature locating the frequency of the incoming signal by examining an RF output signal having both in-band frequency components and out-of-band frequency components. Typically the output signal is generated using a high-power, Class A/B amplifier. Once the frequency of the carrier has been determined, the out-of-band components are used to generate control signals which, in, for example, a feedback or feedforward circuitry, reduce the energy of the out-of-band signals and thereby provide a more linear amplifier transfer function.
摘要翻译: 一种方法和装置降低了RF放大信号(优选CDMA信号)的带外频率分量,其具有预先不知道的载波频率。 该装置和方法通过检查具有带内频率分量和带外频率分量两者的RF输出信号来定位输入信号的频率。 通常,使用大功率A / B类放大器产生输出信号。 一旦已经确定了载波的频率,则使用带外分量来产生控制信号,所述控制信号在例如反馈或前馈电路中降低带外信号的能量,从而提供 更线性的放大器传递函数。
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公开(公告)号:US6140874A
公开(公告)日:2000-10-31
申请号:US174691
申请日:1998-10-19
CPC分类号: H03F1/3229 , H03F1/3241
摘要: A method and apparatus for reducing out-of-band frequency components of an RF signal having a carrier frequency which is not known in advance employ a control signal to vary adjustable bias parameters of the circuit. In particular embodiments, the RF signal is generated from a MOSFET power amplifier, which introduces distortion components into its output signal. Bias parameters of the MOSFET amplifier can be varied to reduce out-of-band frequency components, that is, out-of-band distortion. In addition, other elements of the network can be controlled by varying bias parameters, for example, a predistorter.
摘要翻译: 用于减少具有预先不知道的载波频率的RF信号的带外频率分量的方法和装置采用控制信号来改变电路的可调偏置参数。 在特定实施例中,RF信号从MOSFET功率放大器产生,MOSFET功率放大器将失真分量引入其输出信号。 可以改变MOSFET放大器的偏置参数以减少带外频率分量,即带外失真。 此外,网络的其他元件可以通过改变偏置参数来控制,例如,预失真器。
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公开(公告)号:US1637561A
公开(公告)日:1927-08-02
申请号:US6790125
申请日:1925-11-09
IPC分类号: A63B69/20
CPC分类号: A63B69/201 , A63B2208/12
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