Input stage for an amplifier
    21.
    发明授权
    Input stage for an amplifier 有权
    放大器的输入级

    公开(公告)号:US07667542B2

    公开(公告)日:2010-02-23

    申请号:US12069604

    申请日:2008-02-12

    IPC分类号: H03G3/10 H03F3/00

    CPC分类号: H04B1/18 H03F3/45183

    摘要: In one embodiment, the present invention includes an amplifier having an input to receive a radio frequency (RF) signal from an output node of a source. An input stage coupled to the amplifier input may include one or more components to aid in processing of incoming signals. One such component coupled between the source and the input of the amplifier is a coupling capacitor used to maintain a bias voltage of the amplifier at a different potential than a DC voltage of the output node. In certain applications, the amplifier and the coupling capacitor may be integrated on a single substrate.

    摘要翻译: 在一个实施例中,本发明包括具有用于从源的输出节点接收射频(RF)信号的输入的放大器。 耦合到放大器输入的输入级可以包括一个或多个组件以帮助处理输入信号。 耦合在放大器的源极和输入之间的一个这样的部件是用于将放大器的偏置电压保持在与输出节点的直流电压不同的电位的耦合电容器。 在某些应用中,放大器和耦合电容器可以集成在单个衬底上。

    Correcting for phase noise of an oscillator
    22.
    发明申请
    Correcting for phase noise of an oscillator 有权
    校正振荡器的相位噪声

    公开(公告)号:US20090170463A1

    公开(公告)日:2009-07-02

    申请号:US12005513

    申请日:2007-12-27

    IPC分类号: H04B1/10

    CPC分类号: H04B1/10 H04B1/28

    摘要: In one embodiment, the present invention includes a method for digitizing a phase noise value indicative of a level of phase noise present in a LO signal and downconverting an RF signal to a second frequency signal using the LO signal. This downconversion can cause the phase noise to be transferred to the second frequency signal. The method may thus further include removing the phase noise from the second frequency signal using the digitized phase noise value.

    摘要翻译: 在一个实施例中,本发明包括一种数字化表示LO信号中存在的相位噪声电平的相位噪声值并使用LO信号将RF信号下变频为第二频率信号的方法。 该下变频可导致相位噪声被传送到第二频率信号。 因此,该方法可以进一步包括使用数字化相位噪声值从第二频率信号中去除相位噪声。

    Input stage for an amplifier
    23.
    发明授权

    公开(公告)号:US07355476B2

    公开(公告)日:2008-04-08

    申请号:US11171042

    申请日:2005-06-30

    IPC分类号: H03G3/10

    CPC分类号: H04B1/18 H03F3/45183

    摘要: In one embodiment, the present invention includes an amplifier having an input to receive a radio frequency (RF) signal from an output node of a source. An input stage coupled to the amplifier input may include one or more components to aid in processing of incoming signals. One such component coupled between the source and the input of the amplifier is a coupling capacitor used to maintain a bias voltage of the amplifier at a different potential than a DC voltage of the output node. In certain applications, the amplifier and the coupling capacitor may be integrated on a single substrate.

    Broadcast AM receiver, FM receiver and/or FM transmitter with integrated stereo audio codec, headphone drivers and/or speaker drivers
    26.
    发明授权
    Broadcast AM receiver, FM receiver and/or FM transmitter with integrated stereo audio codec, headphone drivers and/or speaker drivers 有权
    具有集成立体声音频编解码器,耳机驱动器和/或扬声器驱动器的广播AM接收器,FM接收器和/或FM发射器

    公开(公告)号:US08174415B2

    公开(公告)日:2012-05-08

    申请号:US11824596

    申请日:2007-06-29

    IPC分类号: H03M1/00

    CPC分类号: H04B1/1646 H04B1/034

    摘要: An apparatus includes processor and a control interface. The processor is adapted to in a first mode of operation, operate as part of one of a wireless receiver and a wireless transmitter and in a second mode of operation. The processor also processes a first audio band signal to generate a second audio band signal. The control interface selects one of the first and second modes of operation.

    摘要翻译: 一种装置包括处理器和控制接口。 处理器适于处于第一操作模式,作为无线接收机和无线发射机之一的一部分操作,并且处于第二操作模式。 处理器还处理第一音频信号以产生第二音频信号。 控制界面选择第一和第二操作模式之一。

    INTEGRATED LOW-IF TERRESTRIAL AUDIO BROADCAST RECEIVER AND ASSOCIATED METHOD
    27.
    发明申请
    INTEGRATED LOW-IF TERRESTRIAL AUDIO BROADCAST RECEIVER AND ASSOCIATED METHOD 有权
    集成低频中频音频广播接收机及相关方法

    公开(公告)号:US20120051462A1

    公开(公告)日:2012-03-01

    申请号:US13293274

    申请日:2011-11-10

    IPC分类号: H03D1/00

    CPC分类号: H04B1/18 H04B1/30

    摘要: 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 OSC 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.

    摘要翻译: 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OSC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。

    Integrated low-if terrestrial audio broadcast receiver and associated method
    28.
    发明授权
    Integrated low-if terrestrial audio broadcast receiver and associated method 有权
    综合低频地面音频广播接收机及相关方法

    公开(公告)号:US08060049B2

    公开(公告)日:2011-11-15

    申请号:US11698664

    申请日:2007-01-26

    IPC分类号: H04B1/28

    CPC分类号: H04B1/18 H04B1/30

    摘要: 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.

    摘要翻译: 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。

    Integrated low-IF terrestrial audio broadcast receiver and associated method
    29.
    发明授权
    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:US07881692B2

    公开(公告)日:2011-02-01

    申请号:US11900997

    申请日:2007-09-14

    IPC分类号: H04B1/28

    CPC分类号: H04B1/18 H04B1/30

    摘要: 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.

    摘要翻译: 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。

    DIGITAL ARCHITECTURE FOR RADIO-FREQUENCY APPARATUS AND ASSOCIATED METHODS
    30.
    发明申请
    DIGITAL ARCHITECTURE FOR RADIO-FREQUENCY APPARATUS AND ASSOCIATED METHODS 有权
    无线电频率设备数码建筑及相关方法

    公开(公告)号:US20100166124A1

    公开(公告)日:2010-07-01

    申请号:US12715361

    申请日:2010-03-01

    IPC分类号: H04L27/00 H04B1/10

    摘要: A radio-frequency (RF) receiver includes a receiver analog circuitry and a receiver digital circuitry. The receiver analog circuitry resides within a first integrated circuit and the receiver digital circuitry resides within a second integrated circuit. The second integrated circuit couples to the first integrated circuit via a one-bit digital interface. The receiver analog circuitry receives an RF signal and processes the received RF signal to generate a digital signal. The receiver analog circuitry provides the digital signal to the receiver digital circuitry. The receiver digital circuitry includes a digital down-converter circuitry that mixes the digital signal with an intermediate frequency (IF) local oscillator (LO) signal to generate a digital down-converted signal. The receiver digital circuitry also includes a digital filter circuitry that filters the digital down-converted signal to generate a filtered digital signal.

    摘要翻译: 射频(RF)接收机包括接收机模拟电路和接收机数字电路。 接收器模拟电路驻留在第一集成电路内,并且接收器数字电路位于第二集成电路内。 第二集成电路通过一位数字接口耦合到第一集成电路。 接收机模拟电路接收RF信号并处理所接收的RF信号以产生数字信号。 接收机模拟电路将数字信号提供给接收机数字电路。 接收机数字电路包括数字下变频器电路,其将数字信号与中频(IF)本地振荡器(LO)信号混合以产生数字下变频信号。 接收机数字电路还包括数字滤波器电路,其对数字下变频信号进行滤波以产生经滤波的数字信号。