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1.发明授权Systems and methods for reducing broadband image noise through a programmable bandwidth RF variable gain attenuator 有权通过可编程带宽RF可变增益衰减器降低宽带图像噪声的系统和方法公开(公告)号：US07778618B2
公开(公告)日：2010-08-17
申请号：US11617054
申请日：2006-12-28
申请人： Jianhua Lu , Mark Santini , Weinan Gao , Mats Lindstrom , Damian Costa
发明人： Jianhua Lu , Mark Santini , Weinan Gao , Mats Lindstrom , Damian Costa
IPC分类号： H04B1/06
摘要： Systems for suppressing image noise are provided. In this regard, one embodiment includes a system for suppressing image noise comprising a low noise amplifier (LNA) configured to amplify a received RF signal, an RF variable gain attenuator with an image rejection filter with programmable bandwidth configured to suppress image noise and image interference, and an RF mixer configured to perform frequency translation.
摘要翻译： 提供用于抑制图像噪声的系统。 在这方面，一个实施例包括用于抑制图像噪声的系统，包括被配置为放大接收的RF信号的低噪声放大器（LNA），具有被配置为抑制图像噪声和图像干扰的具有可编程带宽的镜像抑制滤波器的RF可变增益衰减器 以及被配置为执行频率转换的RF混合器。
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2.发明申请Systems and Methods for Reducing Broadband Image Noise Through a Programmable Bandwidth RF Variable Gain Attenuator 有权通过可编程带宽RF可变增益衰减器降低宽带图像噪声的系统和方法公开(公告)号：US20080160946A1
公开(公告)日：2008-07-03
申请号：US11617054
申请日：2006-12-28
申请人： Jianhua Lu , Mark Santini , Weinan Gao , Mats Lindstrom , Damian Costa
发明人： Jianhua Lu , Mark Santini , Weinan Gao , Mats Lindstrom , Damian Costa
摘要： Systems for suppressing image noise are provided. In this regard, one embodiment includes a system for suppressing image noise comprising a low noise amplifier (LNA) configured to amplify a received RF signal, an RF variable gain attenuator with an image rejection filter with programmable bandwidth configured to suppress image noise and image interference, and an RF mixer configured to perform frequency translation.
摘要翻译： 提供用于抑制图像噪声的系统。 在这方面，一个实施例包括用于抑制图像噪声的系统，包括被配置为放大接收的RF信号的低噪声放大器（LNA），具有被配置为抑制图像噪声和图像干扰的具有可编程带宽的镜像抑制滤波器的RF可变增益衰减器 以及被配置为执行频率转换的RF混合器。
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3.发明授权Systems and methods with reduced reference spurs using a crystal oscillator for broadband communications 有权使用晶体振荡器进行宽带通信的减少参考杂散的系统和方法公开(公告)号：US07548128B2
公开(公告)日：2009-06-16
申请号：US11612666
申请日：2006-12-19
申请人： Ray Rosik , Weinan Gao , Mats Lindstrom
发明人： Ray Rosik , Weinan Gao , Mats Lindstrom
IPC分类号： H03B5/32
摘要： Systems and methods are provided. In this regard, a representative system incorporates a crystal oscillator circuit and a digital automatic level control circuit. The digital automatic level control circuit is operative to: convert an oscillation amplitude of the crystal oscillator circuit to a proportional DC voltage; convert the DC voltage to a corresponding digital code representation; and adjust bias current and oscillator loop gain such that a desired oscillation amplitude is set.
摘要翻译： 提供了系统和方法。 在这方面，代表性系统包括晶体振荡器电路和数字自动电平控制电路。 数字自动电平控制电路用于：将晶体振荡器电路的振荡幅度转换为比例直流电压; 将DC电压转换为相应的数字代码表示; 并调整偏置电流和振荡器环路增益，使得设置期望的振荡幅度。
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4.发明申请Systems and Methods with Reduced Reference Spurs Using a Crystal Oscillator For Broadband Communications 有权使用晶体振荡器进行宽带通信的参考马刺减少的系统和方法公开(公告)号：US20080143452A1
公开(公告)日：2008-06-19
申请号：US11612666
申请日：2006-12-19
申请人： Ray Rosik , Weinan Gao , Mats Lindstrom
发明人： Ray Rosik , Weinan Gao , Mats Lindstrom
IPC分类号： H03B5/32
摘要： Systems and methods are provided. In this regard, a representative system incorporates a crystal oscillator circuit and a digital automatic level control circuit. The digital automatic level control circuit is operative to: convert an oscillation amplitude of the crystal oscillator circuit to a proportional DC voltage; convert the DC voltage to a corresponding digital code representation; and adjust bias current and oscillator loop gain such that a desired oscillation amplitude is set.
摘要翻译： 提供了系统和方法。 在这方面，代表性系统包括晶体振荡器电路和数字自动电平控制电路。 数字自动电平控制电路用于：将晶体振荡器电路的振荡幅度转换为比例直流电压; 将DC电压转换为相应的数字代码表示; 并调整偏置电流和振荡器环路增益，使得设置期望的振荡幅度。
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5.发明授权Systems and methods with reduced reference spurs using a crystal oscillator for broadband communications 有权使用晶体振荡器进行宽带通信的减少参考杂散的系统和方法公开(公告)号：US07940137B2
公开(公告)日：2011-05-10
申请号：US12463212
申请日：2009-05-08
申请人： Ray Rosik , Weinan Gao , Mats Lindstrom
发明人： Ray Rosik , Weinan Gao , Mats Lindstrom
IPC分类号： H03B5/32
摘要： Systems and methods are provided. In this regard, a representative system incorporates a crystal oscillator circuit and a digital automatic level control circuit. The digital automatic level control circuit is operative to: convert an oscillation amplitude of the crystal oscillator circuit to a proportional DC voltage; convert the DC voltage to a corresponding digital code representation; and adjust bias current and oscillator loop gain such that a desired oscillation amplitude is set.
摘要翻译： 提供了系统和方法。 在这方面，代表性系统包括晶体振荡器电路和数字自动电平控制电路。 数字自动电平控制电路用于：将晶体振荡器电路的振荡幅度转换为比例直流电压; 将DC电压转换为相应的数字代码表示; 并调整偏置电流和振荡器环路增益，使得设置期望的振荡幅度。
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6.发明申请SYSTEMS AND METHODS WITH REDUCED REFERENCE SPURS USING A CRYSTAL OSCILLATOR FOR BROADBAND COMMUNICATIONS 有权使用晶体振荡器进行宽带通信的减少参考模式的系统和方法公开(公告)号：US20100117747A1
公开(公告)日：2010-05-13
申请号：US12463212
申请日：2009-05-08
申请人： Ray Rosik , Weinan Gao , Mats Lindstrom
发明人： Ray Rosik , Weinan Gao , Mats Lindstrom
IPC分类号： H03L7/099
摘要： Systems and methods are provided. In this regard, a representative system incorporates a crystal oscillator circuit and a digital automatic level control circuit. The digital automatic level control circuit is operative to: convert an oscillation amplitude of the crystal oscillator circuit to a proportional DC voltage; convert the DC voltage to a corresponding digital code representation; and adjust bias current and oscillator loop gain such that a desired oscillation amplitude is set.
摘要翻译： 提供了系统和方法。 在这方面，代表性系统包括晶体振荡器电路和数字自动电平控制电路。 数字自动电平控制电路用于：将晶体振荡器电路的振荡幅度转换为比例直流电压; 将DC电压转换为相应的数字代码表示; 并调整偏置电流和振荡器环路增益，使得设置期望的振荡幅度。
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公开(公告)号：US20100151806A1
公开(公告)日：2010-06-17
申请号：US12335905
申请日：2008-12-16
CPC分类号： H04B1/30
摘要： Radio-frequency (RF) circuits, methods and systems are implemented according to a variety of embodiments. According to one such embodiment, a radio-frequency (RF) receiver circuit is implemented with an adjustable RF filter circuit in a receive path of the RF receiver circuit. A local oscillator (LO) generates a LO signal and an RX_LO signal from the LO signal. A mixing circuit mixes a signal received from the adjustable RF filter circuit and the RX_LO signal. An intermediate-frequency (IF) circuit generates an IF_cal signal at the receiver circuit. A calibration circuit implements both a calibration mode and a receive mode. In the calibration mode, a calibration signal is injected into the receive path. A setting of the adjustable RF filter circuit is determined. In the receive mode, the calibration circuit disables the injection of the calibration signal into the receive path of the RF receiver circuit.
摘要翻译： 根据各种实施例实现射频（RF）电路，方法和系统。 根据一个这样的实施例，射频（RF）接收机电路在RF接收器电路的接收路径中用可调节RF滤波器电路实现。 本地振荡器（LO）从LO信号产生LO信号和RX_LO信号。 混合电路混合从可调RF滤波电路接收的信号和RX_LO信号。 中频（IF）电路在接收器电路处产生IF_cal信号。 校准电路同时实现校准模式和接收模式。 在校准模式下，将校准信号注入接收路径。 确定可调节RF滤波器电路的设置。 在接收模式下，校准电路禁止将校准信号注入RF接收器电路的接收路径。
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公开(公告)号：US08107914B2
公开(公告)日：2012-01-31
申请号：US12335905
申请日：2008-12-16
CPC分类号： H04B1/30
摘要： Radio-frequency (RF) circuits, methods and systems are implemented according to a variety of embodiments. According to one such embodiment, a radio-frequency (RF) receiver circuit is implemented with an adjustable RF filter circuit in a receive path of the RF receiver circuit. A local oscillator (LO) generates a LO signal and an RX_LO signal from the LO signal. A mixing circuit mixes a signal received from the adjustable RF filter circuit and the RX_LO signal. An intermediate-frequency (IF) circuit generates an IF_cal signal at the receiver circuit. A calibration circuit implements both a calibration mode and a receive mode. In the calibration mode, a calibration signal is injected into the receive path. A setting of the adjustable RF filter circuit is determined. In the receive mode, the calibration circuit disables the injection of the calibration signal into the receive path of the RF receiver circuit.
摘要翻译： 根据各种实施例实现射频（RF）电路，方法和系统。 根据一个这样的实施例，射频（RF）接收机电路在RF接收器电路的接收路径中用可调节RF滤波器电路实现。 本地振荡器（LO）从LO信号产生LO信号和RX_LO信号。 混合电路混合从可调RF滤波电路接收的信号和RX_LO信号。 中频（IF）电路在接收器电路处产生IF_cal信号。 校准电路同时实现校准模式和接收模式。 在校准模式下，将校准信号注入接收路径。 确定可调节RF滤波器电路的设置。 在接收模式下，校准电路禁止将校准信号注入RF接收器电路的接收路径。
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公开(公告)号：US08078129B2
公开(公告)日：2011-12-13
申请号：US12391020
申请日：2009-02-23
申请人： Mats Lindstrom , Abbolreza Shafie
发明人： Mats Lindstrom , Abbolreza Shafie
IPC分类号： H04B1/16
CPC分类号： H03G3/3068 , H04B17/327
摘要： A method and apparatus for a tuner for adjusting the receiver bandwidth based on adjacent channel interference and group delay distortion.
摘要翻译： 一种用于调谐器的方法和装置，用于基于相邻信道干扰和组延迟失真来调整接收机带宽。
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公开(公告)号：US20090232077A1
公开(公告)日：2009-09-17
申请号：US12405006
申请日：2009-03-16
申请人： Abraham Krieger , Laurence Alan Strong , Mats Lindstrom , Sadashiv Vinayak Phadnis , Yoav P. Goldenberg
发明人： Abraham Krieger , Laurence Alan Strong , Mats Lindstrom , Sadashiv Vinayak Phadnis , Yoav P. Goldenberg
IPC分类号： H04W72/00
CPC分类号： H04N21/6143 , H04H20/63 , H04H40/90 , H04H60/87 , H04N7/20 , H04N21/238 , H04N21/43615 , H04N21/43637 , H04N21/438 , H04N21/440218 , H04N21/440263 , H04N21/4433
摘要： A media receiver hub receives wireless signals from multiple sources (e.g., satellite signals from multiple satellites) and provides the signals to end devices over a local network. According to an example embodiment, a satellite hub is responsive to channel input selections received from end devices by selecting channels from within received satellite signals, and by converting each channel into a format amenable for delivery to and use at an end device requesting the channel. The converted channels are communicated to the end devices over a network that also facilitates communications between the devices, by restricting the communications to using a portion of the available bandwidth of the network, reserving bandwidth for communications with and/or between the end devices (or other network devices).
摘要翻译： 媒体接收器集线器从多个源（例如，来自多个卫星的卫星信号）接收无线信号，并通过本地网络将信号提供给终端设备。 根据示例实施例，卫星集线器响应于从终端设备接收的信道输入选择，通过从接收到的卫星信号中选择信道，并且通过将每个信道转换成适合于在请求信道的终端设备上传送和使用的格式。 转换的信道通过网络传送到终端设备，网络还通过将通信限制为使用网络的可用带宽的一部分，保留用于与终端设备之间的通信和/或终端设备之间的带宽（或 其他网络设备）。
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