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公开(公告)号：US20100240328A1
公开(公告)日：2010-09-23
申请号：US12789470
申请日：2010-05-28
IPC分类号： H04B1/02
CPC分类号： H04B1/0483
摘要： A radio frequency (RF) transmitter front-end includes a digital to analog conversion module and a power amplifier module. The digital to analog conversion module is coupled to convert amplitude information into analog amplitude adjust signals when a first mode is active and is coupled to convert power level information into analog power level signals when a second mode is active. The power amplifier module is coupled to amplify first phase modulated RF signals in accordance with the analog amplitude adjust signals to produce first outbound RF signals when the first mode is active and is coupled to amplify second phase modulated RF signals in accordance with the analog power level signals to produce second outbound RF signals when the second mode is active.
摘要翻译： 射频（RF）发射机前端包括数模转换模块和功率放大器模块。 当第一模式有效时，数模转换模块被耦合以将幅度信息转换为模拟幅度调整信号，并且当第二模式被激活时被耦合以将功率电平信息转换为模拟功率电平信号。 功率放大器模块被耦合以根据模拟幅度调整信号放大第一相位调制RF信号，以在第一模式有效时产生第一出站RF信号，并且被耦合以根据模拟功率电平放大第二相位调制RF信号 当第二模式有效时产生第二出站RF信号的信号。
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公开(公告)号：US20070268049A1
公开(公告)日：2007-11-22
申请号：US11835183
申请日：2007-08-07
申请人： Alireza ZOLFAGHARI
发明人： Alireza ZOLFAGHARI
IPC分类号： H03K3/02
CPC分类号： H03K17/22 , H03K2005/00247
摘要： Provided are a method and system for providing a power-on reset pulse. The system includes a level detector configured to receive an input signal and produce, at least indirectly, a reset signal when the input signal reaches a predetermined level. The system also includes a counter having counting characteristics and configured to receive the reset signal and a clock signal. The counter produces a delayed signal in accordance with the counting characteristics, the clock signal, and the received reset signal.
摘要翻译： 提供一种用于提供上电复位脉冲的方法和系统。 该系统包括电平检测器，其被配置为当输入信号达到预定电平时接收输入信号并产生至少间接的复位信号。 该系统还包括具有计数特性并被配置为接收复位信号和时钟信号的计数器。 计数器根据计数特性，时钟信号和接收到的复位信号产生延迟信号。
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