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21. 发明申请

US20090253390A1 WCDMA TRANSMIT ARCHITECTURE 有权
标题翻译： WCDMA发射架构
公开(公告)号：US20090253390A1
公开(公告)日：2009-10-08
申请号：US12119066
申请日：2008-05-12
申请人： Theodoros Georgantas , Konstantinos D. Vavelidis , Sofoklis Plevridis , Babis(Charalampos) Kapnistis , Spyridon Kavadias
发明人： Theodoros Georgantas , Konstantinos D. Vavelidis , Sofoklis Plevridis , Babis(Charalampos) Kapnistis , Spyridon Kavadias
IPC分类号： H04B1/02
CPC分类号： H03G3/3042
摘要： Wideband-Code Division Multiple Access (W-CDMA) transmit architecture. A baseband digital processing module operates cooperatively with an analog signal processing module to effectuate highly adjustable and highly accurate gain adjustment in accordance with transmitter processing within a communication device. The gain adjustment and/or gain control is partitioned between the digital and analog domains by employing two cooperatively operating digital and analog modules, respectively. Gain adjustment in the analog domain is performed in a relatively more coarse fashion that in the digital domain. If desired, gain adjustment in each of the analog and digital domains is performed across a range of discrete steps. The discrete steps in the analog domain are larger than the discrete steps in the digital domain. Also, the discrete steps in the digital domain may be interposed between two successive discrete steps in the analog domain.
摘要翻译：宽带码分多址（W-CDMA）传输架构。基带数字处理模块与模拟信号处理模块协同工作，以根据通信设备内的发射机处理实现高度可调节和高度准确的增益调整。增益调节和/或增益控制通过分别使用两个协同操作的数字和模拟模块在数字和模拟域之间进行分区。模拟域中的增益调整以数字域中相对较粗略的方式执行。如果需要，在每个模拟和数字域中的增益调整在一系列离散步骤中执行。模拟域中的离散步长大于数字域中的离散步长。此外，数字域中的离散步骤可以插入在模拟域中的两个连续离散步骤之间。

22. 发明申请

US20090191825A1 CONFIGURABLE RF TRANSMITTER 失效
标题翻译：可配置射频发射器
公开(公告)号：US20090191825A1
公开(公告)日：2009-07-30
申请号：US12022264
申请日：2008-01-30
申请人： Theodoros Georgantas , Konstantinos D. Vavelidis , Sofoklis Plevridis , Ilias Bouras
发明人： Theodoros Georgantas , Konstantinos D. Vavelidis , Sofoklis Plevridis , Ilias Bouras
IPC分类号： H04B1/02
CPC分类号： H04B1/0483
摘要： An RF transmitter includes a Cartesian to polar conversion section, a PLL, a DAC module, a mixing module, and a PA module. The Cartesian to polar conversion section converts a Cartesian based symbol stream into a polar based symbol stream. The PLL generates an oscillation when the RF transmitter is in a Cartesian mode or a phase modulated oscillation based on phase modulation information of the polar based symbol stream when the RF transmitter is in a polar mode. The mixing module mixes an analog Cartesian based signal with a local oscillation to produce a Cartesian based up converted signal when the RF transmitter is in the Cartesian mode and mixes an analog amplitude signal with a phase modulated local oscillation to produce a polar based up converted signal when the RF transmitter is in the polar mode. The PA module amplifies the Cartesian based up converted signal to produce an outbound RF signal when the RF transmitter is in the Cartesian mode and amplifies the polar based up converted signal to produce the outbound RF signal when the RF transmitter is in the polar mode.
摘要翻译： RF发射机包括笛卡尔到极化转换部分，PLL，DAC模块，混合模块和PA模块。笛卡尔到极化转换部分将基于笛卡尔的符号流转换为极坐标符号流。当RF发射机处于极坐标模式时，当RF发射机处于笛卡尔方式或基于极坐标号码流的相位调制信息的相位调制振荡时，PLL产生振荡。当RF发射器处于笛卡尔模式并且将模拟幅度信号与相位调制的本地振荡混合以产生基于极坐标的上变频信号时，混合模块将基于模拟笛卡尔的信号与本地振荡混合以产生基于笛卡尔的上变频信号当RF发射器处于极坐标模式时。当RF发射器处于极坐标模式时，当RF发射器处于笛卡尔方式时，PA模块放大基于笛卡尔加速转换信号以产生出站RF信号，并放大基于极坐标的上变频信号以产生出站RF信号。

23. 发明授权

US07890069B2 Selectable low noise amplifier for wireless communication 有权
标题翻译：用于无线通信的可选低噪声放大器
公开(公告)号：US07890069B2
公开(公告)日：2011-02-15
申请号：US11937990
申请日：2007-11-09
申请人： Aristeidis I. Kyranas , Georgios S. Kamoulakos , Iason F. Vassilou , Konstantinos D. Vavelidis
发明人： Aristeidis I. Kyranas , Georgios S. Kamoulakos , Iason F. Vassilou , Konstantinos D. Vavelidis
IPC分类号： H03D9/06
CPC分类号： H03D3/007 , H03C5/00
摘要： A low-noise amplifier in a receiver has a differential mode of operation and at least one single-ended mode of operation. A control signal is used to select between or among the modes and the switching between differential and single-ended operations may be performed on the fly.
摘要翻译：接收机中的低噪声放大器具有差分操作模式和至少一个单端操作模式。控制信号用于在模式之间或之间选择，并且差分和单端操作之间的切换可以在飞行中执行。

24. 发明授权

US07680227B2 Method and system for filter calibration using fractional-N frequency synthesized signals 失效
$Method and system for filter calibration using fractional-N frequency synthesized signals$
标题翻译：使用分数N频率合成信号进行滤波校准的方法和系统
公开(公告)号：US07680227B2
公开(公告)日：2010-03-16
申请号：US11431960
申请日：2006-05-11
申请人： Spyridon C. Kavadias , Konstantinos D. Vavelidis , Nikolaos C. Haralabidis
发明人： Spyridon C. Kavadias , Konstantinos D. Vavelidis , Nikolaos C. Haralabidis
IPC分类号： H04L7/00
CPC分类号： H04B1/30 , H04B1/405 , H04H60/91
摘要： A method and system for filter calibration using fractional-N frequency synthesized signals are presented. The method may include generating an Local Oscillator (LO) signal by a Phase Locked Loop (PLL) circuit within a chip. A reference signal may be generated based on the generated LO signal and a synthesizer control signal. A frequency response for a filter circuit integrated within the chip may be calibrated by adjusting parameters associated with the filter circuit based on the generated LO signal. The system may include a single-chip multi-band RF receiver that enables generation of a LO signal by a PLL circuit within the single-chip, and enables calibration of a frequency response for a filter circuit integrated within the chip. A reference signal may be generated based on the generated LO signal and a synthesizer control signal. The frequency response may be calibrated by adjusting the filter based on the generated reference signal.
摘要翻译：提出了使用分数N频率合成信号进行滤波校准的方法和系统。该方法可以包括通过芯片内的锁相环（PLL）电路产生本地振荡器（LO）信号。可以基于所生成的LO信号和合成器控制信号来生成参考信号。集成在芯片内的滤波器电路的频率响应可以通过基于产生的LO信号调整与滤波器电路相关联的参数来校准。该系统可以包括单芯片多频带RF接收器，其能够通过单芯片内的PLL电路产生LO信号，并且能够校准集成在芯片内的滤波器电路的频率响应。可以基于所生成的LO信号和合成器控制信号来生成参考信号。可以通过基于产生的参考信号调整滤波器来校准频率响应。

25. 发明申请

US20090124223A1 SELECTABLE LOW NOISE AMPLIFIER FOR WIRELESS COMMUNICATION 有权
标题翻译：可选低噪声放大器，用于无线通信
公开(公告)号：US20090124223A1
公开(公告)日：2009-05-14
申请号：US11937990
申请日：2007-11-09
申请人： Aristeidis I. Kyranas , Georgios S. Kamoulakos , Iason F. Vassilou , Konstantinos D. Vavelidis
发明人： Aristeidis I. Kyranas , Georgios S. Kamoulakos , Iason F. Vassilou , Konstantinos D. Vavelidis
IPC分类号： H03D9/06
CPC分类号： H03D3/007 , H03C5/00
摘要： A low-noise amplifier in a receiver has a differential mode of operation and at least one single-ended mode of operation. A control signal is used to select between or among the modes and the switching between differential and single-ended operations may be performed on the fly.
摘要翻译：接收机中的低噪声放大器具有差分操作模式和至少一个单端操作模式。控制信号用于在模式之间或之间选择，并且差分和单端操作之间的切换可以在飞行中执行。

26. 发明申请

US20100167673A1 METHOD AND SYSTEM FOR RF FRONT-END CALIBRATION SCHEME USING FRACTIONAL-N FREQUENCY SYNTHESIZED SIGNALS AND RSSI 有权
标题翻译：使用分数N频率合成信号和RSSI的RF前端校准方案的方法和系统
公开(公告)号：US20100167673A1
公开(公告)日：2010-07-01
申请号：US12709974
申请日：2010-02-22
申请人： Konstantinos D. Vavelidis , Charalampos P. Kapnistis , Iason F. Vassiliou
发明人： Konstantinos D. Vavelidis , Charalampos P. Kapnistis , Iason F. Vassiliou
IPC分类号： H04B1/16
CPC分类号： H04B17/21 , H04B7/08 , H04H60/91
摘要： Aspects of a method and system for an RF front-end calibration scheme using signals from a fractional-N frequency synthesized and received signal strength indicator (RSSI) are provided. A frequency synthesizer within a wireless receiver may generate a signal for dynamically modifying a gain in an integrated low-noise amplifier (LNA) for each selected receiver channel. The frequency-synthesized signals may be applied to at least one tunable load communicatively coupled to the LNA. The tunable load may be an input load or an output load. The signal generated by the frequency synthesizer may be sequentially applied to the input load and the output load. A logarithmic amplifier may generate an RSSI signal from the LNA output during the calibration process. The RSSI signal may be utilized for controlling a tunable load coupled to the LNA and optimize the tuning of the LNA in a desired channel by adjusting the tunable load.
摘要翻译：提供了使用来自分数N频率合成和接收信号强度指示符（RSSI）的信号的RF前端校准方案的方法和系统的方面。无线接收机内的频率合成器可以生成用于动态地修改用于每个选定的接收机信道的集成低噪声放大器（LNA）中的增益的信号。频率合成信号可以被施加到通信地耦合到LNA的至少一个可调谐负载。可调负载可能是输入负载或输出负载。由频率合成器产生的信号可以顺序地施加到输入负载和输出负载。对数放大器可以在校准过程中从LNA输出产生RSSI信号。 RSSI信号可以用于控制耦合到LNA的可调负载，并且通过调节可调负载来优化所需信道中LNA的调谐。

27. 发明授权

US07924944B2 Method and system for multi-band direct conversion complimentary metal-oxide-semiconductor (CMOS) mobile television tuner 有权
标题翻译：多频带直接转换辅助金属氧化物半导体（CMOS）移动电视调谐器的方法和系统
公开(公告)号：US07924944B2
公开(公告)日：2011-04-12
申请号：US11385390
申请日：2006-03-21
申请人： Iason F. Vassiliou , Konstantinos D. Vavelidis , Stamatios A. Bouras , Spyridon C. Kavadias , Ioannis G. Kokolakis , Georgios S. Kamoulakos , Aristeidis I. Kyranas , Charalampos P. Kapnistis , Nikolaos C. Haralabidis
发明人： Iason F. Vassiliou , Konstantinos D. Vavelidis , Stamatios A. Bouras , Spyridon C. Kavadias , Ioannis G. Kokolakis , Georgios S. Kamoulakos , Aristeidis I. Kyranas , Charalampos P. Kapnistis , Nikolaos C. Haralabidis
IPC分类号： H03K9/00
CPC分类号： H04B1/0064
摘要： Aspects of a method and system for a multi-band direct conversion complementary metal-oxide-semiconductor (CMOS) mobile television tuner are provided. A single-chip multi-band radio frequency (RF) receiver in a mobile terminal comprising UHF and L-band front-ends receives and amplifies an RF signal utilizing a low noise amplifier (LNA) an LNA integrated into the front-end that corresponds to the type of signal received. A received signal strength indicator (RSSI) value may be determined for the amplified signal within the receiver and may be utilized to adjust a gain of the LNA. The adjustment may be made via on-chip or off-chip processing of the RSSI value. The receiver may directly convert the amplified signal to a baseband frequency signal and generate in-phase and quadrature components. The components of the baseband frequency signal may be filtered and/or amplified via programmable devices within the receiver. Circuitry within the receiver may be controller via an on-chip digital interface.
摘要翻译：提供了一种用于多频带直接转换互补金属氧化物半导体（CMOS）移动电视调谐器的方法和系统的方面。在包括UHF和L波段前端的移动终端中的单芯片多频带射频（RF）接收机使用低噪声放大器（LNA）接收和放大RF信号，LNA集成到对应的前端到接收到的信号类型。可以为接收机内的放大信号确定接收信号强度指示符（RSSI）值，并可用于调整LNA的增益。可以通过RSSI值的片上或片外处理来进行调整。接收机可以将放大的信号直接转换成基带频率信号并产生同相和正交分量。基带频率信号的分量可以经由接收机内的可编程设备进行滤波和/或放大。接收机内的电路可以通过片上数字接口进行控制。

28. 发明申请

US20100173598A1 METHOD AND SYSTEM FOR FILTER CALIBRATION USING FRACTIONAL-N FREQUENCY SYNTHESIZED SIGNALS 审中-公开
标题翻译：使用分数N频率合成信号进行滤波校准的方法和系统
公开(公告)号：US20100173598A1
公开(公告)日：2010-07-08
申请号：US12724166
申请日：2010-03-15
申请人： Spyridon C. Kavadias , Konstantinos D. Vavelidis , Nikolaos C. Haralabidis
发明人： Spyridon C. Kavadias , Konstantinos D. Vavelidis , Nikolaos C. Haralabidis
IPC分类号： H04B17/00
CPC分类号： H04B1/30 , H04B1/405 , H04H60/91
摘要： A method and system for filter calibration using fractional-N frequency synthesized signals are presented. Aspects of the method may include generating an LO signal by a PLL circuit within a chip. A reference signal may be generated based on the generated LO signal and a synthesizer control signal. A frequency response for a filter circuit integrated within the chip may be calibrated by adjusting parameters associated with the filter circuit based on the generated LO signal. Aspects of the system may include a single-chip multi-band RF receiver that enables generation of a LO signal by a PLL circuit within the single-chip, and enables calibration of a frequency response for a filter circuit integrated within the chip. A reference signal may be generated based on the generated LO signal and a synthesizer control signal. The frequency response may be calibrated by adjusting the filter based on the generated reference signal.
摘要翻译：提出了使用分数N频率合成信号进行滤波校准的方法和系统。该方法的方面可以包括通过芯片内的PLL电路生成LO信号。可以基于所生成的LO信号和合成器控制信号来生成参考信号。集成在芯片内的滤波器电路的频率响应可以通过基于产生的LO信号调整与滤波器电路相关联的参数来校准。系统的方面可以包括单芯片多频带RF接收机，其能够通过单芯片内的PLL电路产生LO信号，并且能够校准集成在芯片内的滤波器电路的频率响应。可以基于所生成的LO信号和合成器控制信号来生成参考信号。可以通过基于产生的参考信号调整滤波器来校准频率响应。

29. 发明授权

US07668521B2 Method and system for RF front-end calibration scheme using fractional-N frequency synthesized signals and RSSI 有权
$Method and system for RF front-end calibration scheme using fractional-N frequency synthesized signals and RSSI$
标题翻译：使用分数N频率合成信号和RSSI的RF前端校准方案的方法和系统
公开(公告)号：US07668521B2
公开(公告)日：2010-02-23
申请号：US11432450
申请日：2006-05-11
申请人： Konstantinos D. Vavelidis , Charalampos P. Kapnistis , Iason F. Vassiliou
发明人： Konstantinos D. Vavelidis , Charalampos P. Kapnistis , Iason F. Vassiliou
IPC分类号： H04B1/16
CPC分类号： H04B17/21 , H04B7/08 , H04H60/91
摘要： Aspects of a method and system for an RF front-end calibration scheme using signals from a fractional-N frequency synthesized and received signal strength indicator (RSSI) are provided. A frequency synthesizer within a wireless receiver may generate a signal for dynamically modifying a gain in an integrated low-noise amplifier (LNA) for each selected receiver channel. The frequency-synthesized signals may be applied to at least one tunable load communicatively coupled to the LNA. The tunable load may be an input load or an output load. The signal generated by the frequency synthesizer may be sequentially applied to the input load and the output load. A logarithmic amplifier may generate an RSSI signal from the LNA output during the calibration process. The RSSI signal may be utilized for controlling a tunable load coupled to the LNA and optimize the tuning of the LNA in a desired channel by adjusting the tunable load.
摘要翻译：提供了使用来自分数N频率合成和接收信号强度指示符（RSSI）的信号的RF前端校准方案的方法和系统的方面。无线接收机内的频率合成器可以生成用于动态地修改用于每个选定的接收机信道的集成低噪声放大器（LNA）中的增益的信号。频率合成信号可以被施加到通信地耦合到LNA的至少一个可调谐负载。可调负载可能是输入负载或输出负载。由频率合成器产生的信号可以顺序地施加到输入负载和输出负载。对数放大器可以在校准过程中从LNA输出产生RSSI信号。 RSSI信号可以用于控制耦合到LNA的可调负载，并且通过调节可调负载来优化所需信道中LNA的调谐。

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