Low noise amplifier for a radio receiver
    11.
    发明申请
    Low noise amplifier for a radio receiver 有权
    用于无线电接收机的低噪声放大器

    公开(公告)号:US20070052482A1

    公开(公告)日:2007-03-08

    申请号:US11171817

    申请日:2005-06-30

    CPC classification number: H03F3/45183 H03F2203/45362

    Abstract: In one embodiment, the present invention includes an amplifier having a transistor stage coupled between a supply voltage and a bias current. The transistor stage has an input to receive a radio frequency (RF) input signal obtained from an antenna. The amplifier has an input impedance that is unmatched to a source impedance of the antenna. In some embodiments, this unmatched input impedance may be substantially greater than the source impedance, and may further be controlled based on a strength of the RF input signal.

    Abstract translation: 在一个实施例中,本发明包括具有耦合在电源电压和偏置电流之间的晶体管级的放大器。 晶体管级具有用于接收从天线获得的射频(RF)输入信号的输入。 放大器具有与天线的源阻抗无法匹配的输入阻抗。 在一些实施例中,这种不匹配的输入阻抗可以基本上大于源阻抗,并且还可以基于RF输入信号的强度进行控制。

    Supply regulator
    12.
    发明申请
    Supply regulator 失效
    供应调节器

    公开(公告)号:US20070001657A1

    公开(公告)日:2007-01-04

    申请号:US11273695

    申请日:2005-11-14

    CPC classification number: G05F1/575 Y10S323/901

    Abstract: A technique includes using a first stored energy source to generate a reference signal to circuitry of a supply regulator in response to the regulator being in a startup state. The technique includes using an output signal that is provided by the regulator to generate the reference signal in response to the regulator not being in the startup state.

    Abstract translation: 一种技术包括使用第一存储能量源来响应于调节器处于启动状态而向电源调节器的电路产生参考信号。 该技术包括使用由调节器提供的输出信号以响应于调节器不处于启动状态而产生参考信号。

    Dynamic selection of local oscillator signal injection for image rejection in integrated receivers
    14.
    发明申请
    Dynamic selection of local oscillator signal injection for image rejection in integrated receivers 有权
    动态选择本地振荡器信号注入用于集成接收机中的图像抑制

    公开(公告)号:US20060003722A1

    公开(公告)日:2006-01-05

    申请号:US10881579

    申请日:2004-06-30

    CPC classification number: H04B1/10 H03J1/0041 H04B1/28

    Abstract: A system and method are disclosed for dynamically selecting high-side injection or low-side injection of local oscillator mixing signals based upon an assessment of signal power within the input signal spectrum that could cause unwanted images in the processed signal. This image rejection assessment provides an advantageous basis upon which to make dynamic high-side versus low-side injection determinations.

    Abstract translation: 公开了一种系统和方法,用于基于对输入信号频谱内的信号功率的评估来动态地选择本地振荡器混合信号的高侧注入或低侧注入,这可能导致处理信号中的不需要的图像。 这种镜像抑制评估提供了进行动态高侧对低侧注射测定的有利基础。

    On-chip calibration signal generation for tunable filters for RF communications and associated methods
    15.
    发明申请
    On-chip calibration signal generation for tunable filters for RF communications and associated methods 有权
    用于RF通信和相关方法的可调谐滤波器的片上校准信号生成

    公开(公告)号:US20060001559A1

    公开(公告)日:2006-01-05

    申请号:US11081959

    申请日:2005-03-16

    Inventor: G. Tuttle Dan Kasha

    CPC classification number: H04B1/18 H04B1/30

    Abstract: On-chip calibration signal generation circuitry is disclosed for filter tuning for radio-frequency communications and associated methods. On-chip circuitry generates a calibration signal that is used to help set a tuning control signal that is received by a tunable front-end filter. In one embodiment, local oscillator (LO) generation circuitry is used to generate the calibration signal. In operation of this embodiment, the LO generation circuitry is tuned to the desired receive channel, or to a frequency at some offset value from the desired receive channel, and the output of the LO generation circuitry is then used as a calibration input signal for a tunable front-end filter. This calibration signal is passed through the receive path circuitry, and the resulting signal is then analyzed to help set a tuning control signal for the tunable front-end filter.

    Abstract translation: 公开了用于射频通信和相关方法的滤波器调谐的片上校准信号产生电路。 片上电路产生校准信号,用于帮助设置由可调谐前端滤波器接收的调谐控制信号。 在一个实施例中,使用本地振荡器(LO)产生电路来产生校准信号。 在本实施例的操作中,LO产生电路被调谐到期望的接收信道,或者被调谐到来自期望的接收信道的某个偏移值的频率,然后将LO产生电路的输出用作校准输入信号 可调谐前端滤波器 该校准信号通过接收路径电路,然后对结果信号进行分析,以帮助设置可调谐前端滤波器的调谐控制信号。

    Edge sealing devices for building structures
    16.
    发明授权
    Edge sealing devices for building structures 失效
    用于建筑结构的边缘密封装置

    公开(公告)号:US5189853A

    公开(公告)日:1993-03-02

    申请号:US789823

    申请日:1991-11-08

    CPC classification number: E04D13/155 E04D13/15 E04D2003/285

    Abstract: An assembly is provided for sealing and capping an edge construction on a building structure wherein a facing, composed of masonry or other materials, is placed along a back wall, generally in a face-to-face relationship. The edge sealing or coping assembly seals and caps the interface and joint or space between the facing and the back wall and accommodates variances in the facing depth and/or the spacing between the facing and the back wall along the perimeter of the building.

    Abstract translation: 提供了用于密封和封盖建筑结构上的边缘结构的组件,其中通常以面对面的关系沿着后壁放置由砖石或其它材料组成的面。 边缘密封或应对组件密封和盖住面向和后壁之间的界面和接头或空间,并且容纳沿着建筑物的周边的面对深度和/或面向和后壁之间的间隔的差异。

    Integrated low-IF terrestrial audio broadcast receiver and associated method
    17.
    发明申请
    Integrated low-IF terrestrial audio broadcast receiver and associated method 有权
    综合低频IF地面音频广播接收机及相关方法

    公开(公告)号:US20080009261A1

    公开(公告)日:2008-01-10

    申请号:US11900997

    申请日:2007-09-14

    Inventor: G. Tuttle Dan Kasha

    CPC classification number: H04B1/18 H04B1/30

    Abstract: An integrated low-IF (low intermediate frequency) terrestrial broadcast receiver and associated method are disclosed that provide an advantageous and cost-efficient solution. The integrated receiver includes a mixer, local oscillator generation circuitry, low-IF conversion circuitry, and DSP circuitry. And the integrated receiver is particularly suited for small, portable devices and the reception of terrestrial audio broadcasts, such as FM and AM terrestrial audio broadcast, in such portable devices.

    Abstract translation: 公开了一种集成的低中频(低中频)地面广播接收机和相关方法,其提供了有利且具有成本效益的解决方案。 集成接收器包括混频器,本地振荡器产生电路,低IF转换电路和DSP电路。 并且集成接收机特别适用于小型便携式设备以及在这种便携式设备中接收地面音频广播,诸如FM和AM地面音频广播。

    PARTITIONING OF RADIO-FREQUENCY APPARATUS
    18.
    发明申请
    PARTITIONING OF RADIO-FREQUENCY APPARATUS 有权
    无线电频率设备的分配

    公开(公告)号:US20070054629A1

    公开(公告)日:2007-03-08

    申请号:US10730404

    申请日:2003-12-08

    CPC classification number: H04B1/30 H03J2200/10 H04L27/0002

    Abstract: Components of a radio-frequency (RF) apparatus including transceiver circuitry and frequency modification circuitry of a crystal oscillator circuit that generates a reference signal with adjustable frequency may be partitioned in a variety of ways, for example, as one or more separate integrated circuits. The frequency modification circuitry may be implemented as part of a crystal oscillator circuit that includes digitally controlled crystal oscillator (“DCXO”) circuitry and a crystal. The frequency modification circuitry may include at least one variable capacitance device and may be employed to generate a reference signal with adjustable frequency. The adjustable reference signal may be provided to other components of the RF apparatus and/or the RF apparatus may be configured to provide the adjustable reference signal to baseband processor circuitry. Automatic frequency control (AFC) circuitry may be integrated with other components of RF circuitry and may generate frequency control signals for the frequency modification circuitry based on, for example, a signal received from a temperature sensor. Digital-to-analog converter (DAC) circuitry may be integrated with other components of RF circuitry to enable all-digital frequency control communications from baseband processor circuitry to RF circuitry.

    Abstract translation: 包括生成具有可变频率的参考信号的晶体振荡器电路的收发器电路和频率修改电路的射频(RF)设备的组件可以以各种方式被划分,例如作为一个或多个单独的集成电路。 频率修改电路可以被实现为包括数字控制的晶体振荡器(“DCXO”)电路和晶体的晶体振荡器电路的一部分。 频率修改电路可以包括至少一个可变电容器件,并且可以用于产生具有可调频率的参考信号。 可调参考信号可以被提供给RF装置的其他部件,和/或RF装置可以被配置为向基带处理器电路提供可调参考信号。 自动频率控制(AFC)电路可以与RF电路的其它组件集成,并且可以基于例如从温度传感器接收的信号来生成用于频率修改电路的频率控制信号。 数模转换器(DAC)电路可以与RF电路的其他部件集成,以实现从基带处理器电路到RF电路的全数字频率控制通信。

    Ratiometric clock systems for integrated receivers and associated methods
    19.
    发明申请
    Ratiometric clock systems for integrated receivers and associated methods 有权
    用于集成接收机和相关方法的比例时钟系统

    公开(公告)号:US20060003728A1

    公开(公告)日:2006-01-05

    申请号:US10880483

    申请日:2004-06-30

    CPC classification number: H04B1/30

    Abstract: A ratiometric clock system for an integrated receiver and associated method are disclosed that provide an advantageous solution for combining digital signal processing (DSP) circuitry on the same integrated circuit as mixer and local oscillator (LO) generation circuitry. The generation circuitry generates an oscillation signal that is passed through a first divider to generate mixing signals for the mixer and that is passed through a second divider to generate a digital clock signal that is utilized by the DSP circuitry. This digital clock signal can be utilized by integrated analog-to-digital conversion circuitry, as well.

    Abstract translation: 公开了一种用于集成接收机和相关方法的比例时钟系统,其提供用于将数字信号处理(DSP)电路组合在与混频器和本地振荡器(LO)生成电路相同的集成电路上的有利解决方案。 产生电路产生振荡信号,该信号通过第一分频器以产生用于混频器的混频信号,并通过第二分频器产生由DSP电路利用的数字时钟信号。 该数字时钟信号也可以由集成的模数转换电路使用。

    Reglet assembly with snap-on flashing
    20.
    发明授权
    Reglet assembly with snap-on flashing 失效
    REGLET组装与SNAP-ON闪光

    公开(公告)号:US5123208A

    公开(公告)日:1992-06-23

    申请号:US612663

    申请日:1990-11-13

    CPC classification number: E04D13/1415

    Abstract: A reglet or flashing assembly includes a termination bar member with a snap-on resilient flashing and accommodates longitudinal expansion without leakage at longitudinally-adjacent joints, as well as providing for such a snap-on flashing or skirt component that only requires installation forces that are directed toward the wall, thus avoiding adverse effects on sealants, water-proof membranes, or other wall surface panels or structures. In at least one version, the reglet assembly also accommodates irregularities along the surface of the wall, such as high or low points or recesses resulting from masonry mortar joints.

    Abstract translation: 抛光或闪光组件包括具有卡扣弹性闪光的端接杆构件,并且适应纵向膨胀而在纵向相邻接头处没有泄漏,以及提供这样的卡扣式闪光或裙部部件,其仅需要安装力 指向墙壁,从而避免对密封剂,防水膜或其它壁表面板或结构的不利影响。 在至少一个版本中,注射器组件还容纳沿壁表面的不规则性,例如由砖石砂浆接头产生的高点或低点。

Patent Agency Ranking