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    Variable-gain low noise amplifier for digital terrestrial applications
    1.
    发明授权
    Variable-gain low noise amplifier for digital terrestrial applications 有权
    用于数字地面应用的可变增益低噪声放大器

    公开(公告)号：US08437720B2

    公开(公告)日：2013-05-07

    申请号：US12591440

    申请日：2009-11-19

    申请人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    发明人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    IPC分类号： H04B1/06

    CPC分类号： H03G3/3036 ,  H04B1/109 ,  H04B1/18

    摘要： An apparatus and method is disclosed for adjusting a gain of an amplifier assembly array. The amplifier assembly array includes a first stage to provide an amplified signal based upon an input signal. The first stage has a variable gain controlled in response to one or more gain control signals. An Automatic Gain Control (AGC) module generates the one or more gain control signals according to a ramp function in response to a power level of the amplified signal. The first stage may include a first low noise amplifier (LNA) to amplify the input signal to provide a first amplified input signal and a second LNA to amplify a second input signal to provide a second amplified signal. A switch selects between the amplified signal and the second amplified signal to provide the amplified signal. The amplifier assembly array may additionally include a second stage to provide a second amplified signal based upon the amplified signal. The second stage may include a third LNA to amplify one or more used channels of the amplified signal and a fourth LNA to amplify one or more unused channels of the amplified signal.

    摘要翻译： 公开了一种用于调节放大器组件阵列的增益的装置和方法。 放大器组件阵列包括基于输入信号提供放大信号的第一级。 第一级具有响应于一个或多个增益控制信号而被控制的可变增益。 自动增益控制（AGC）模块响应于放大信号的功率电平，根据斜坡函数产生一个或多个增益控制信号。 第一级可以包括放大输入信号以提供第一放大输入信号的第一低噪声放大器（LNA）和用于放大第二输入信号以提供第二放大信号的第二LNA。 开关选择放大信号和第二放大信号之间以提供放大信号。 放大器组件阵列可以另外包括第二级，以基于放大的信号提供第二放大信号。 第二级可以包括用于放大放大信号的一个或多个使用的通道的第三LNA和用于放大放大信号的一个或多个未使用通道的第四LNA。

    Variable-gain low noise amplifier for digital terrestrial applications
    2.
    发明授权
    Variable-gain low noise amplifier for digital terrestrial applications 失效
    用于数字地面应用的可变增益低噪声放大器

    公开(公告)号：US07260377B2

    公开(公告)日：2007-08-21

    申请号：US11030882

    申请日：2005-01-10

    申请人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    发明人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    IPC分类号： H04B1/16

    CPC分类号： H03F1/26 ,  G01R31/2607 ,  G01R31/30 ,  G01R31/31723 ,  H01L22/20 ,  H01L2924/0002 ,  H03F3/189 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3036 ,  H04B1/109 ,  H04B1/18 ,  H04N5/4446 ,  H04N5/52 ,  H04N7/102 ,  H01L2924/00

    摘要： A multi-stage amplifier assembly configured to receive a terrestrial digital television (“DTV”) input signal including multiple frequency channels. The amplifier assembly optionally includes a PIN diode coupled across differential inputs to a first stage of the multi-stage amplifier assembly. The PIN diode is controlled to attenuate the input when an exceptionally large signal is present in a channel adjacent to a desired channel. The PIN diode, essentially a variable resistor, permits the multi-stage amplifier assembly to maintain dynamic range in such situations for reasonable tradeoffs. The amplifier assembly further optionally includes an out-of-band second stage LNA. The amplifier assembly further optionally includes a multi-band input filter. The multi-band filer insures that the AGC operates on the TV band of interest, thus improving the linearity of the system. The invention can be implemented in CMOS and/or SiGe.

    摘要翻译： 多级放大器组件，被配置为接收包括多个频率信道的地面数字电视（“DTV”）输入信号。 放大器组件可选地包括耦合在差分输入端到多级放大器组件的第一级的PIN二极管。 控制PIN二极管以在与所需通道相邻的通道中存在非常大的信号时衰减输入。 PIN二极管（基本上是可变电阻器）允许多级放大器组件在这种情况下保持动态范围以进行合理的折衷。 放大器组件还可选地包括带外第二级LNA。 放大器组件还可选地包括多频带输入滤波器。 多频带滤波器确保AGC在感兴趣的TV频带上运行，从而提高系统的线性度。 本发明可以在CMOS和/或SiGe中实现。

    Variable-gain low noise amplifier for digital terrestrial applications
    3.
    发明申请
    Variable-gain low noise amplifier for digital terrestrial applications 有权
    用于数字地面应用的可变增益低噪声放大器

    公开(公告)号：US20100073572A1

    公开(公告)日：2010-03-25

    申请号：US12591440

    申请日：2009-11-19

    申请人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    发明人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    IPC分类号： H04N5/14 ,  H03F3/68

    CPC分类号： H03G3/3036 ,  H04B1/109 ,  H04B1/18

    摘要： An apparatus and method is disclosed for adjusting a gain of an amplifier assembly array. The amplifier assembly array includes a first stage to provide an amplified signal based upon an input signal. The first stage has a variable gain controlled in response to one or more gain control signals. An Automatic Gain Control (AGC) module generates the one or more gain control signals according to a ramp function in response to a power level of the amplified signal. The first stage may include a first low noise amplifier (LNA) to amplify the input signal to provide a first amplified input signal and a second LNA to amplify a second input signal to provide a second amplified signal. A switch selects between the amplified signal and the second amplified signal to provide the amplified signal. The amplifier assembly array may additionally include a second stage to provide a second amplified signal based upon the amplified signal. The second stage may include a third LNA to amplify one or more used channels of the amplified signal and a fourth LNA to amplify one or more unused channels of the amplified signal.

    摘要翻译： 公开了一种用于调节放大器组件阵列的增益的装置和方法。 放大器组件阵列包括基于输入信号提供放大信号的第一级。 第一级具有响应于一个或多个增益控制信号而被控制的可变增益。 自动增益控制（AGC）模块响应于放大信号的功率电平，根据斜坡函数产生一个或多个增益控制信号。 第一级可以包括放大输入信号以提供第一放大输入信号的第一低噪声放大器（LNA）和用于放大第二输入信号以提供第二放大信号的第二LNA。 开关选择放大信号和第二放大信号之间以提供放大信号。 放大器组件阵列可以另外包括第二级，以基于放大的信号提供第二放大信号。 第二级可以包括用于放大放大信号的一个或多个使用的通道的第三LNA和用于放大放大信号的一个或多个未使用通道的第四LNA。

    Variable-gain low noise amplifier for digital terrestrial applications
    4.
    发明授权
    Variable-gain low noise amplifier for digital terrestrial applications 有权
    用于数字地面应用的可变增益低噪声放大器

    公开(公告)号：US07634244B2

    公开(公告)日：2009-12-15

    申请号：US11139619

    申请日：2005-05-31

    申请人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    发明人： Lawrence M. Burns ,  Charles Brooks ,  Leonard Dauphinee

    IPC分类号： H04B1/06

    CPC分类号： H03F1/26 ,  G01R31/2607 ,  G01R31/30 ,  G01R31/31723 ,  H01L22/20 ,  H01L2924/0002 ,  H03F3/189 ,  H03F3/211 ,  H03F2200/294 ,  H03F2200/372 ,  H03G3/3036 ,  H04B1/109 ,  H04B1/18 ,  H04N5/4446 ,  H04N5/52 ,  H04N7/102 ,  H01L2924/00

    摘要： A multi-stage amplifier assembly configured to receive a terrestrial digital television (“DTV”) input signal including multiple frequency channels. The amplifier assembly optionally includes a PIN diode coupled across differential inputs to a first stage of the multi-stage amplifier assembly. The PIN diode is controlled to attenuate the input when an exceptionally large signal is present in a channel adjacent to a desired channel. The PIN diode, essentially a variable resistor, permits the multi-stage amplifier assembly to maintain dynamic range in such situations for reasonable tradeoffs. The amplifier assembly further optionally includes an out-of-band second stage LNA. The amplifier assembly further optionally includes a multi-band input filter. The multi-band filer insures that the AGC operates on the TV band of interest, thus improving the linearity of the system. The invention can be implemented in CMOS and/or SiGe.

    摘要翻译： 多级放大器组件，被配置为接收包括多个频率信道的地面数字电视（“DTV”）输入信号。 放大器组件可选地包括耦合在差分输入端到多级放大器组件的第一级的PIN二极管。 控制PIN二极管以在与所需通道相邻的通道中存在非常大的信号时衰减输入。 PIN二极管（基本上是可变电阻器）允许多级放大器组件在这种情况下保持动态范围以进行合理的折衷。 放大器组件还可选地包括带外第二级LNA。 放大器组件还可选地包括多频带输入滤波器。 多频带滤波器确保AGC在感兴趣的TV频带上运行，从而提高系统的线性度。 本发明可以在CMOS和/或SiGe中实现。

    Multi-input multi-output tuner front ends
    6.
    发明授权
    Multi-input multi-output tuner front ends 有权
    多输入多输出调谐器前端

    公开(公告)号：US07701515B2

    公开(公告)日：2010-04-20

    申请号：US10882293

    申请日：2004-07-02

    申请人： Ramon A. Gomez ,  Charles Brooks ,  Leonard Dauphinee

    发明人： Ramon A. Gomez ,  Charles Brooks ,  Leonard Dauphinee

    IPC分类号： H04N5/44

    CPC分类号： H04N21/4263 ,  H04N5/46 ,  H04N5/50

    摘要： A front end circuit for a television receiver includes a demultiplexer for inputting a multi-band signal from a signal source and separating the multi-band signal into corresponding bands. A plurality of amplifiers adjust gain on signals corresponding to the bands. A multiplexer combines outputs of the amplifiers into a gain-adjusted signal. A plurality of switches direct selected bands to corresponding tuners. The amplifiers are low noise amplifiers. The amplifiers adjust gain between the bands so as to have similar signal strength in the bands. A cable TV input may also be used, wherein the switches also direct signals from the cable TV to the corresponding tuners. Each amplifier can output two (or more) identical signals for its corresponding band, the multiplexer can be a dual multiplexer, and an output of the multiplexer includes only bands selected for direction to the tuners. The signal source comprises any of a broadcast channel received from an antenna, a cable TV channel received from a cable line, and a combination of the two.

    摘要翻译： 电视接收机的前端电路包括用于从信号源输入多频带信号并将多频带信号分离成相应频带的解复用器。 多个放大器调整对应于该频带的信号的增益。 多路复用器将放大器的输出组合成增益调整信号。 多个开关将选择的频带直接引导到相应的调谐器。 放大器是低噪声放大器。 放大器调节频带之间的增益，以便在频带中具有相似的信号强度。 还可以使用有线电视输入，其中开关还将信号从有线电视引导到相应的调谐器。 每个放大器可以为其相应的频带输出两个（或更多）相同的信号，多路复用器可以是双重复用器，并且多路复用器的输出仅包括为调谐器的方向选择的频带。 信号源包括从天线接收的广播频道，从电缆线路接收的有线电视频道以及两者的组合中的任何一个。

    Single integrated high definition television (HDTV) chip for analog and digital reception
    8.
    发明授权
    Single integrated high definition television (HDTV) chip for analog and digital reception 有权
    用于模拟和数字接收的单一集成高分辨率电视（HDTV）芯片

    公开(公告)号：US07525600B2

    公开(公告)日：2009-04-28

    申请号：US11137528

    申请日：2005-05-25

    申请人： Tarek Kaylani ,  Charles Brooks

    发明人： Tarek Kaylani ,  Charles Brooks

    IPC分类号： H04N3/27

    CPC分类号： H04N21/42638 ,  H04N5/4401 ,  H04N5/46 ,  H04N19/42 ,  H04N21/4316

    摘要： Methods and systems for processing television signals are disclosed herein, and may comprise decoding a first analog video signal via an integrated circuit comprising circuitry for decoding and processing digital video signals. A second analog video signal may be simultaneously decoded via the integrated circuit. A first video output corresponding to the decoded first analog video signal and a second video output corresponding to the decoded second analog video signal may be simultaneously generating via the integrated circuit. An out-of-band signal corresponding to the decoded first or second analog video signal may be received via the integrated circuit. The received out-of-band signal may be processed via the integrated circuit. The first analog video signal and the second analog video signal may comprise an NTSC signal, a composite signal, an S-video signal, and/or a component signal. The digital video signals may be decoded via the integrated circuit.

    摘要翻译： 本文公开了用于处理电视信号的方法和系统，并且可以包括经由包括用于解码和处理数字视频信号的电路的集成电路对第一模拟视频信号进行解码。 可以经由集成电路同时解码第二模拟视频信号。 可以经由集成电路同时产生对应于解码的第一模拟视频信号的第一视频输出和对应于解码的第二模拟视频信号的第二视频输出。 可以经由集成电路接收与解码的第一或第二模拟视频信号相对应的带外信号。 可以经由集成电路来处理所接收的带外信号。 第一模拟视频信号和第二模拟视频信号可以包括NTSC信号，复合信号，S视频信号和/或分量信号。 数字视频信号可以经由集成电路解码。

    High strength aluminum alloys and process for making the same
    9.
    发明申请
    High strength aluminum alloys and process for making the same 审中-公开
    高强度铝合金及其制造方法

    公开(公告)号：US20060213591A1

    公开(公告)日：2006-09-28

    申请号：US11087733

    申请日：2005-03-24

    申请人： Charles Brooks ,  Ralph Dorward ,  Ray Parkinson ,  Rob Matuska ,  Mory Shaarbaf

    发明人： Charles Brooks ,  Ralph Dorward ,  Ray Parkinson ,  Rob Matuska ,  Mory Shaarbaf

    IPC分类号： C22C21/10

    CPC分类号： C22C21/10 ,  C22F1/053

    摘要： High strength aluminum alloys based on the Al—Zn—Mg—Cu alloy system preferably include high levels of zinc and copper, but modest levels of magnesium, to provide increased tensile strength without sacrificing toughness. Preferred ranges of the elements include by weight, 8.5-10.5% Zn, 1.4-1.85 % Mg, 2.25-3.0% Cu and at least one element from the group Zr, V, or Hf not exceeding about 0.5%, the balance substantially aluminum and incidental impurities. In addition, small amounts of scandium (0.05-0.30%) are also preferably employed to prevent recrystalization. During formation of the alloys, homogenization, solution heat treating and artificial aging processes are preferably employed.

    摘要翻译： 基于Al-Zn-Mg-Cu合金系统的高强度铝合金优选包括高水平的锌和铜，但适度的镁，以提供增加的拉伸强度而不牺牲韧性。 元素的优选范围包括8.5-10.5％的Zn，1.4-1.85％的Mg，2.25-3.0％的Cu和至少一种来自Zr，V或Hf的元素不超过约0.5％，余量基本上为铝 和杂质。 此外，还优选使用少量的钪（0.05-0.30％）以防止重结晶。 在合金形成期间，优选使用均化，固溶热处理和人造时效处理。