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    Media Receiver Hub
    2.
    发明申请
    Media Receiver Hub 有权
    媒体接收器中心

    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）。

    Systems and method for a highly integrated, multi-mode tuner
    3.
    发明授权
    Systems and method for a highly integrated, multi-mode tuner 有权
    高度集成，多模式调谐器的系统和方法

    公开(公告)号：US07515888B2

    公开(公告)日：2009-04-07

    申请号：US11244568

    申请日：2005-10-06

    申请人： Mats Lindstrom ,  Abdolreza Shafie

    发明人： Mats Lindstrom ,  Abdolreza Shafie

    IPC分类号： H04B1/06

    CPC分类号： H03G3/3068 ,  H04B17/327

    摘要： A method for adjusting the signal to noise ratio of a receiver comprises measuring the peak power for an RF signal and determining, based on the measured peak power, whether the RF signal power is within a desired operating range. The method further includes adjusting an RF attenuation for the receiver, when it is determined that the RF signal power is not within the desired operating rang. The method further comprises measuring a peak power foe an IF signal, determining based on the measured peak power, whether the IF signal power is within a desired operating range, and adjusting an IF attenuation for the receiver, when it is determined that the IF signal peak power is not within the desired operating range.

    摘要翻译： 用于调整接收机的信噪比的方法包括测量RF信号的峰值功率，并且基于所测量的峰值功率来确定RF信号功率是否在期望的操作范围内。 当确定RF信号功率不在期望的操作范围内时，该方法还包括调整接收机的RF衰减。 该方法还包括：当确定IF信号时，测量IF信号的峰值功率，基于测量的峰值功率确定IF信号功率是否在期望的工作范围内，以及调整接收机的IF衰减 峰值功率不在所需的工作范围内。

    Systems and methods with reduced reference spurs using a crystal oscillator for broadband communications
    6.
    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

    CPC分类号： H03B5/06 ,  H03B5/364 ,  H03L3/00

    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。

    Systems and Methods with Reduced Reference Spurs Using a Crystal Oscillator For Broadband Communications
    7.
    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

    CPC分类号： H03B5/06 ,  H03B5/364 ,  H03L3/00

    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。

    Power amplifier operated as an envelope digital to analog converter with digital pre-distortion
    8.
    发明授权
    Power amplifier operated as an envelope digital to analog converter with digital pre-distortion 有权
    功率放大器作为数字预失真的封装数模转换器

    公开(公告)号：US06255906B1

    公开(公告)日：2001-07-03

    申请号：US09410216

    申请日：1999-09-30

    申请人： Donald Brian Eidson ,  Mats Lindstrom ,  Robert Edmund Grange

    发明人： Donald Brian Eidson ,  Mats Lindstrom ,  Robert Edmund Grange

    IPC分类号： H03F368

    CPC分类号： H03M1/74 ,  H03F1/0277 ,  H03F1/3241 ,  H03F3/602 ,  H03F2201/3233

    摘要： A power amplifier that amplifies an electrical signal that is passed through a power amplification array. The power amplifier is employed in various applications including cellular telephones, radio frequency signal transmission, and other electrical signal applications requiring power amplification. The power amplifier contains a number of power amplifiers arranged in a power amplifier array. To reproduce a particular envelope profile, a selected number of the power amplifiers of the power amplifier array is switched ON, whereas another selected number of the power amplifiers of the power amplifier array are switched OFF. All elements are fed with an RF signal containing phase information as well. The amplified, output signal provided after the power amplifier array is fed to an antenna for signal transmission. Impedance matching circuitry is employed between the power amplifier array and the antenna to provide efficiency for those applications having low power budgets or seeking to operate with extremely high efficiency. The present invention provides a solution that is extremely energy efficient, making it ideally suited for applications having low available power budgets such as battery operated devices such as cellular telephones. From one perspective, the power amplifier array is operated as if it were a digital device. For example, each of the individual power amplifiers of the power amplifier array is either switched ON or switched OFF, as described above, and a selected number of the power amplifiers provides the desired level for the specific application.

    摘要翻译： 放大通过功率放大阵列的电信号的功率放大器。 功率放大器用于各种应用，包括蜂窝电话，射频信号传输以及需要功率放大的其他电信号应用。 功率放大器包含多个布置在功率放大器阵列中的功率放大器。 为了再现特定的包络轮廓，所选数量的功率放大器阵列的功率放大器被接通，而功率放大器阵列的另一选定数量的功率放大器被切换为OFF。 所有元件也被馈送包含相位信息的RF信号。 在功率放大器阵列之后提供的放大的输出信号被馈送到天线进行信号传输。 在功率放大器阵列和天线之间采用阻抗匹配电路，以为具有低功率预算或寻求以非常高的效率运行的那些应用提供效率。 本发明提供了一种非常节能的解决方案，使其非常适用于具有低可用功率预算的应用，例如诸如蜂窝电话的电池供电装置。 从一个角度来看，功率放大器阵列就像数字设备一样被操作。 例如，如上所述，功率放大器阵列的各个功率放大器的每个都被切换为接通或关断，并且选定数量的功率放大器为特定应用提供期望的电平。

    RF Filter with Low-IF Mixing, Tuning and Calibration
    9.
    发明申请
    RF Filter with Low-IF Mixing, Tuning and Calibration 有权
    低中频混频，调谐和校准的射频滤波器

    公开(公告)号：US20100151806A1

    公开(公告)日：2010-06-17

    申请号：US12335905

    申请日：2008-12-16

    申请人： Daniel Firoiu ,  Damian Costa ,  Mats Lindstrom ,  Kendal McNaught-Davis Hess ,  Weinen Gao

    发明人： Daniel Firoiu ,  Damian Costa ,  Mats Lindstrom ,  Kendal McNaught-Davis Hess ,  Weinen Gao

    IPC分类号： H04B1/18 ,  H04B1/16

    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。