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1.发明授权Receiver capable of concurrently collecting dual band signals, and method thereof 有权能够同时收集双频带信号的接收机及其方法公开(公告)号：US08693967B2
公开(公告)日：2014-04-08
申请号：US13073996
申请日：2011-03-28
申请人： Chi-Wei Cheng , Yueh-Hua Yu , Yi-Jan Chen
发明人： Chi-Wei Cheng , Yueh-Hua Yu , Yi-Jan Chen
IPC分类号： H04B1/18
CPC分类号： H04B1/0053 , H04B1/0007
摘要： A receiver of a GNSS system is provided. The receiver comprises two mixers and a processing circuit. The first mixer down-converts an input radio-frequency signal comprising a first GNSS signal and a second GNSS signal into a first low-frequency signal. The second mixer down-converts the input radio-frequency signal into a second low-frequency signal. The processing circuit generates at least one phase-shifted low-frequency signal according to at least the first low-frequency signal, extract signal components of the first GNSS signal by rejecting signal components of the second GNSS signal according to the second low-frequency signal and the at least one phase-shifted low-frequency signal, and extract signal components of the second GNSS signal by rejecting signal components of the first GNSS signal according to the second low-frequency signal and the at least one phase-shifted low-frequency signal. The first and second GNSS signals are situated in different frequency ranges.
摘要翻译： 提供GNSS系统的接收机。 接收机包括两个混频器和一个处理电路。 第一混频器将包括第一GNSS信号和第二GNSS信号的输入射频信号下变频为第一低频信号。 第二混频器将输入射频信号下变频为第二低频信号。 处理电路根据至少第一低频信号产生至少一个相移低频信号，通过根据第二低频信号拒绝第二GNSS信号的信号分量来提取第一GNSS信号的信号分量 和所述至少一个相移低频信号，并且通过根据所述第二低频信号和所述至少一个相移低频信号拒绝所述第一GNSS信号的信号分量来提取所述第二GNSS信号的信号分量 信号。 第一和第二GNSS信号位于不同的频率范围内。
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2.发明申请RECEIVER CAPABLE OF CONCURRENTLY COLLECTING DUAL BAND SIGNALS, AND METHOD THEREOF 有权同时收集双波段信号的接收机及其方法公开(公告)号：US20120252395A1
公开(公告)日：2012-10-04
申请号：US13073996
申请日：2011-03-28
申请人： Chi-Wei Cheng , Yueh-Hua Yu , Yi-Jan Chen
发明人： Chi-Wei Cheng , Yueh-Hua Yu , Yi-Jan Chen
IPC分类号： H04B1/26
CPC分类号： H04B1/0053 , H04B1/0007
摘要： A receiver of a GNSS system is provided. The receiver comprises two mixers and a processing circuit. The first mixer down-converts an input radio-frequency signal comprising a first GNSS signal and a second GNSS signal into a first low-frequency signal. The second mixer down-converts the input radio-frequency signal into a second low-frequency signal. The processing circuit generates at least one phase-shifted low-frequency signal according to at least the first low-frequency signal, extract signal components of the first GNSS signal by rejecting signal components of the second GNSS signal according to the second low-frequency signal and the at least one phase-shifted low-frequency signal, and extract signal components of the second GNSS signal by rejecting signal components of the first GNSS signal according to the second low-frequency signal and the at least one phase-shifted low-frequency signal. The first and second GNSS signals are situated in different frequency ranges.
摘要翻译： 提供GNSS系统的接收机。 接收机包括两个混频器和一个处理电路。 第一混频器将包括第一GNSS信号和第二GNSS信号的输入射频信号下变频为第一低频信号。 第二混频器将输入射频信号下变频为第二低频信号。 处理电路根据至少第一低频信号产生至少一个相移低频信号，通过根据第二低频信号拒绝第二GNSS信号的信号分量来提取第一GNSS信号的信号分量 和所述至少一个相移低频信号，并且通过根据所述第二低频信号和所述至少一个相移低频信号拒绝所述第一GNSS信号的信号分量来提取所述第二GNSS信号的信号分量 信号。 第一和第二GNSS信号位于不同的频率范围内。
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3.发明授权公开(公告)号：US08094024B2
公开(公告)日：2012-01-10
申请号：US12500790
申请日：2009-07-10
申请人： Yuan-Jiang Lee , Yueh-Hua Yu , Yi-Jan Chen , Yu-Hsuan Li
发明人： Yuan-Jiang Lee , Yueh-Hua Yu , Yi-Jan Chen , Yu-Hsuan Li
CPC分类号： H03D1/18
摘要： An exemplary amplitude shift keying (ASM) demodulator and a radio frequency identification (RFID) system using the same are provided. The ASM demodulator is adapted to demodulate an alternating current input signal and generate a demodulated envelope signal. The ASM demodulator includes a signal input terminal group, an input rectifier circuit, a current mirror circuit electrically coupled to the input rectifier circuit, an output stage electrically coupled to the current mirror circuit, and a low pass filter electrically coupled to the output stage. The input rectifier circuit is electrically coupled to the signal input terminal group and adapted to perform a rectifying operation applied to the alternating current input signal. The input rectifier circuit includes a plurality of electrically coupled transistors and a gate electrode of each of the transistors is unconnected with a source electrode and a drain electrode itself.
摘要翻译： 提供了示例性的幅度移位键控（ASM）解调器和使用其的射频识别（RFID）系统。 ASM解调器适于解调交流输入信号并产生解调的包络信号。 ASM解调器包括信号输入端子组，输入整流电路，电耦合到输入整流器电路的电流镜电路，电耦合到电流镜电路的输出级和电耦合到输出级的低通滤波器。 输入整流电路电耦合到信号输入端子组，并且适于执行施加到交流输入信号的整流操作。 输入整流电路包括多个电耦合晶体管，并且每个晶体管的栅电极与源极和漏电极本身不连接。
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4.发明申请公开(公告)号：US20100164724A1
公开(公告)日：2010-07-01
申请号：US12500790
申请日：2009-07-10
申请人： Yuan-Jiang Lee , Yueh-Hua Yu , Yi-Jan Chen , Yu-Hsuan Li
发明人： Yuan-Jiang Lee , Yueh-Hua Yu , Yi-Jan Chen , Yu-Hsuan Li
CPC分类号： H03D1/18
摘要： An exemplary amplitude shift keying (ASM) demodulator and a radio frequency identification (RFID) system using the same are provided. The ASM demodulator is adapted to demodulate an alternating current input signal and generate a demodulated envelope signal. The ASM demodulator includes a signal input terminal group, an input rectifier circuit, a current mirror circuit electrically coupled to the input rectifier circuit, an output stage electrically coupled to the current mirror circuit, and a low pass filter electrically coupled to the output stage. The input rectifier circuit is electrically coupled to the signal input terminal group and adapted to perform a rectifying operation applied to the alternating current input signal. The input rectifier circuit includes a plurality of electrically coupled transistors and a gate electrode of each of the transistors is unconnected with a source electrode and a drain electrode itself.
摘要翻译： 提供了示例性的幅度移位键控（ASM）解调器和使用其的射频识别（RFID）系统。 ASM解调器适于解调交流输入信号并产生解调的包络信号。 ASM解调器包括信号输入端子组，输入整流电路，电耦合到输入整流器电路的电流镜电路，电耦合到电流镜电路的输出级和电耦合到输出级的低通滤波器。 输入整流电路电耦合到信号输入端子组，并且适于执行施加到交流输入信号的整流操作。 输入整流电路包括多个电耦合晶体管，并且每个晶体管的栅电极与源极和漏电极本身不连接。
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