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1. 发明申请

US20070218851A1 Multiple band RF transmitters and receivers having independently variable RF and IF local oscillators and independent high-side and low-side RF local oscillators 审中-公开
公开(公告)号：US20070218851A1
公开(公告)日：2007-09-20
申请号：US11804516
申请日：2007-05-16
申请人： Zaw Soe , Tony Yang , Jackie Cheng , Sining Zhou , Kuangyu Li , Fei-Ran Yang , Shoufang Chen , Tom Baker
发明人： Zaw Soe , Tony Yang , Jackie Cheng , Sining Zhou , Kuangyu Li , Fei-Ran Yang , Shoufang Chen , Tom Baker
IPC分类号： H04B1/16
CPC分类号： H04B1/403
摘要： Multistage RF transmitter and receiver circuits may use independently variable RF and IF local oscillators, allowing the RF and IF local oscillator frequencies for a given RF channel to be selected to have a large common factor with respect to the reference oscillator used by the local oscillator circuits, thus allowing the use of small divisor numbers in the local oscillator circuits and reducing phase noise. Independent high-side and low-side RF local oscillators may be provided and selectively used depending on the RF channel to be transmitted or received.

2. 发明申请

US20050266806A1 Multiple band RF transmitters and receivers having independently variable RF and IF local oscillators and independent high-side and low-side RF local oscillators 有权
标题翻译：具有独立可变RF和IF本地振荡器以及独立的高侧和低侧RF本地振荡器的多频带RF发射器和接收器
公开(公告)号：US20050266806A1
公开(公告)日：2005-12-01
申请号：US10856125
申请日：2004-05-28
申请人： Zaw Min Soe , Tony Yang , Jackie Cheng , Sining Zhou , Kuangyu Li , Fei-Ran Yang , Shoufang Chen , Tom Baker
发明人： Zaw Min Soe , Tony Yang , Jackie Cheng , Sining Zhou , Kuangyu Li , Fei-Ran Yang , Shoufang Chen , Tom Baker
IPC分类号： H04B1/06 , H04B1/40 , H04B7/00
CPC分类号： H04B1/403
摘要： Multistage RF transmitter and receiver circuits may use independently variable RF and IF local oscillators, allowing the RF and IF local oscillator frequencies for a given RF channel to be selected to have a large common factor with respect to the reference oscillator used by the local oscillator circuits, thus allowing the use of small divisor numbers in the local oscillator circuits and reducing phase noise. Independent high-side and low-side RF local oscillators may be provided and selectively used depending on the RF channel to be transmitted or received.
摘要翻译：多级RF发射器和接收器电路可以使用独立可变的RF和IF本地振荡器，允许将给定RF通道的RF和IF本地振荡器频率选择为相对于本地振荡器电路使用的参考振荡器具有大的共同因子，从而允许在本地振荡器电路中使用小的除数，并减少相位噪声。独立的高侧和低端RF本地振荡器可以根据要发送或接收的RF信道来提供和选择性地使用。

3. 发明授权

US07266352B2 Multiple band RF transmitters and receivers having independently variable RF and IF local oscillators and independent high-side and low-side RF local oscillators 有权
标题翻译：具有独立可变RF和IF本地振荡器以及独立的高侧和低侧RF本地振荡器的多频带RF发射器和接收器
公开(公告)号：US07266352B2
公开(公告)日：2007-09-04
申请号：US10856125
申请日：2004-05-28
申请人： Zaw Min Soe , Tony Yang , Jackie Cheng , Sining Zhou , Kuangyu Li , Fei-Ran Yang , Shoufang Chen , Tom Baker
发明人： Zaw Min Soe , Tony Yang , Jackie Cheng , Sining Zhou , Kuangyu Li , Fei-Ran Yang , Shoufang Chen , Tom Baker
IPC分类号： H04B1/16
CPC分类号： H04B1/403
摘要： Multistage RF transmitter and receiver circuits may use independently variable RF and IF local oscillators, allowing the RF and IF local oscillator frequencies for a given RF channel to be selected to have a large common factor with respect to the reference oscillator used by the local oscillator circuits, thus allowing the use of small divisor numbers in the local oscillator circuits and reducing phase noise. Independent high-side and low-side RF local oscillators may be provided and selectively used depending on the RF channel to be transmitted or received.
摘要翻译：多级RF发射器和接收器电路可以使用独立可变的RF和IF本地振荡器，允许将给定RF通道的RF和IF本地振荡器频率选择为相对于本地振荡器电路使用的参考振荡器具有大的共同因子，从而允许在本地振荡器电路中使用小的除数，并减少相位噪声。独立的高侧和低端RF本地振荡器可以根据要发送或接收的RF信道来提供和选择性地使用。

4. 发明授权

US08258925B2 Frequency synthesizer and frequency synthesizing method 有权
标题翻译：频率合成器和频率合成方法
公开(公告)号：US08258925B2
公开(公告)日：2012-09-04
申请号：US12057644
申请日：2008-03-28
申请人： Christopher Tin Sing Lam , Shoufang Chen
发明人： Christopher Tin Sing Lam , Shoufang Chen
IPC分类号： H04Q5/22
CPC分类号： H03L7/16 , H03B19/00
摘要： A frequency synthesizer for providing clock signals with different frequencies for corresponding band transceivers and associated frequency synthesizing method are provided. The frequency synthesizer includes a phase-locked loop module having a single voltage controlled oscillator, a first frequency divider and a second frequency divider. At first, the single voltage controlled oscillator is activated to generate a primary clock signal. The first frequency divider frequency-divides the primary clock signal to generate a first clock signal for a first band transceiver. The first clock signal is further frequency-divided into a second clock signal for a second band transceiver. Therefore, the frequency synthesizer with the single voltage controlled oscillator can generate clock signals covering more than one frequency band.
摘要翻译：提供了一种频率合成器，用于为相应的频带收发机提供不同频率的时钟信号和相关的频率合成方法。频率合成器包括具有单个压控振荡器的锁相环模块，第一分频器和第二分频器。首先，单个压控振荡器被激活以产生主时钟信号。第一分频器对主时钟信号进行分频，以产生用于第一频带收发器的第一时钟信号。第一时钟信号被进一步分频为第二频带收发器的第二时钟信号。因此，具有单个压控振荡器的频率合成器可以产生覆盖多于一个频带的时钟信号。

5. 发明授权

US08120531B2 Signal processing apparatus for multi-mode satellite positioning system and method thereof 有权
标题翻译：多模式卫星定位系统的信号处理装置及其方法
公开(公告)号：US08120531B2
公开(公告)日：2012-02-21
申请号：US12719294
申请日：2010-03-08
申请人： Chao-Tung Yang , Fu-Cheng Wang , Shoufang Chen , Shuo-Yuan Hsiao
发明人： Chao-Tung Yang , Fu-Cheng Wang , Shoufang Chen , Shuo-Yuan Hsiao
IPC分类号： G01S19/36
CPC分类号： G01S19/36 , G01S19/33
摘要： A signal processing apparatus for a multi-mode satellite positioning system includes a band-pass filter, a local oscillator circuit, a first mixing circuit, a second mixing circuit, an analog-to-digital converter and a baseband circuit. By properly allocating a local frequency, radio frequency (RF) signals of a Global Positioning System (GPS), a Galileo positioning system and a Global Navigation System (GLONASS) are processed via a single signal path to save hardware cost.
摘要翻译：一种用于多模式卫星定位系统的信号处理装置，包括带通滤波器，本地振荡器电路，第一混频电路，第二混频电路，模数转换器和基带电路。通过适当地分配本地频率，通过单个信号路径处理全球定位系统（GPS），伽利略定位系统和全球导航系统（GLONASS）的射频（RF）信号以节省硬件成本。

6. 发明申请

US20090303123A1 Hybrid GPS Receiving Method and Associated Apparatus 有权
标题翻译：混合GPS接收方法及相关设备
公开(公告)号：US20090303123A1
公开(公告)日：2009-12-10
申请号：US12344808
申请日：2008-12-29
申请人： Shoufang Chen , Ying-Lin Lai , Jia-Yi Chen , Chao-Tung Yang , Chiung Hung Chang
发明人： Shoufang Chen , Ying-Lin Lai , Jia-Yi Chen , Chao-Tung Yang , Chiung Hung Chang
IPC分类号： G01S5/02
CPC分类号： G01S19/37
摘要： A hybrid Global Positioning System (GPS) receiving method, and associated GPS receiving apparatus is provided. The GPS receiving apparatus includes an RF front-end circuit, a correlation circuit, an acquisition engine and a bidirectional interface control unit. The RF front-end receiving circuit receives a satellite signal and converts the same into a baseband signal. The acquisition engine, coupled to the correlation circuit, determines reception power of the GPS satellite signal. The interface control unit, coupled to the acquisition engine, provides a low-speed interface for transmitting GPS intermediate data that includes a code bin, a frequency bin, navigation data, a local system time and a GPS time. The interface control unit includes a memory interface unit for coupling to a memory.
摘要翻译：提供了一种混合的全球定位系统（GPS）接收方法和相关的GPS接收装置。 GPS接收装置包括RF前端电路，相关电路，采集引擎和双向接口控制单元。 RF前端接收电路接收卫星信号并将其转换为基带信号。耦合到相关电路的采集引擎确定GPS卫星信号的接收功率。耦合到采集引擎的接口控制单元提供用于发送包括码仓，频率仓，导航数据，本地系统时间和GPS时间的GPS中间数据的低速接口。接口控制单元包括用于耦合到存储器的存储器接口单元。

7. 发明申请

US20100302100A1 Signal Processing Apparatus for Multi-mode Satellite Positioning System and Method Thereof 有权
标题翻译：多模卫星定位系统信号处理装置及方法
公开(公告)号：US20100302100A1
公开(公告)日：2010-12-02
申请号：US12719294
申请日：2010-03-08
申请人： CHAO-TUNG YANG , Fu-Cheng Wang , Shoufang Chen , Shuo-Yuan Hsiao
发明人： CHAO-TUNG YANG , Fu-Cheng Wang , Shoufang Chen , Shuo-Yuan Hsiao
IPC分类号： G01S19/33 , G01S19/36
CPC分类号： G01S19/36 , G01S19/33
摘要： A signal processing apparatus for a multi-mode satellite positioning system includes a band-pass filter, a local oscillator circuit, a first mixing circuit, a second mixing circuit, an analog-to-digital converter and a baseband circuit. By properly allocating a local frequency, radio frequency (RF) signals of a Global Positioning System (GPS), a Galileo positioning system and a Global Navigation System (GLONASS) are processed via a single signal path to save hardware cost.
摘要翻译：一种用于多模式卫星定位系统的信号处理装置，包括带通滤波器，本地振荡器电路，第一混频电路，第二混频电路，模数转换器和基带电路。通过适当地分配本地频率，通过单个信号路径处理全球定位系统（GPS），伽利略定位系统和全球导航系统（GLONASS）的射频（RF）信号以节省硬件成本。

8. 发明授权

US07821455B2 Hybrid GPS receiving method and associated apparatus 有权
标题翻译：混合GPS接收方法及相关设备
公开(公告)号：US07821455B2
公开(公告)日：2010-10-26
申请号：US12344808
申请日：2008-12-29
申请人： Shoufang Chen , Ying-Lin Lai , Jia-Yi Chen , Chao-Tung Yang , Chiung Hung Chang
发明人： Shoufang Chen , Ying-Lin Lai , Jia-Yi Chen , Chao-Tung Yang , Chiung Hung Chang
IPC分类号： G01S19/31 , G01S19/42
CPC分类号： G01S19/37
摘要： A hybrid Global Positioning System (GPS) receiving method, and associated GPS receiving apparatus is provided. The GPS receiving apparatus includes an RF front-end circuit, a correlation circuit, an acquisition engine and a bidirectional interface control unit. The RF front-end receiving circuit receives a satellite signal and converts the same into a baseband signal. The acquisition engine, coupled to the correlation circuit, determines reception power of the GPS satellite signal. The interface control unit, coupled to the acquisition engine, provides a low-speed interface for transmitting GPS intermediate data that includes a code bin, a frequency bin, navigation data, a local system time and a GPS time. The interface control unit includes a memory interface unit for coupling to a memory.
摘要翻译：提供了一种混合的全球定位系统（GPS）接收方法和相关的GPS接收装置。 GPS接收装置包括RF前端电路，相关电路，采集引擎和双向接口控制单元。 RF前端接收电路接收卫星信号并将其转换为基带信号。耦合到相关电路的采集引擎确定GPS卫星信号的接收功率。耦合到采集引擎的接口控制单元提供用于发送包括码仓，频率仓，导航数据，本地系统时间和GPS时间的GPS中间数据的低速接口。接口控制单元包括用于耦合到存储器的存储器接口单元。

9. 发明申请

US20080238498A1 CLOCK GENERATOR, METHOD FOR GENERATING CLOCK SIGNAL AND FRACTIONAL PHASE LOCK LOOP THEREOF 有权
标题翻译：时钟发生器，用于产生时钟信号的方法及其相位锁相环
公开(公告)号：US20080238498A1
公开(公告)日：2008-10-02
申请号：US12046527
申请日：2008-03-12
申请人： Christopher Tin Sing Lam , Fucheng Wang , Shoufang Chen
发明人： Christopher Tin Sing Lam , Fucheng Wang , Shoufang Chen
IPC分类号： H03B19/00 , H03L7/06
CPC分类号： H03L7/22 , H03L7/16
摘要： A clock generator includes a delta sigma modulator, a counter and a first phase lock loop. The delta sigma modulator sequentially generates a plurality of variable parameters according to a predetermined value and a first input clock signal. The counter, which is connected to the delta sigma modulator, is used to generate an output clock signal in accordance with a counting value and a second input clock signal. The counting value is relevant to the variable parameters. The first phase lock loop, which is connected to the output of the counter, is used to generate an objective clock signal in accordance with the output clock signal.
摘要翻译：时钟发生器包括ΔΣ调制器，计数器和第一锁相环。 ΔΣ调制器根据预定值和第一输入时钟信号顺序产生多个可变参数。连接到Δ-Σ调制器的计数器用于根据计数值和第二输入时钟信号产生输出时钟信号。计数值与变量参数相关。连接到计数器的输出的第一锁相环用于根据输出时钟信号产生目标时钟信号。

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