Ratiometric clock systems for integrated receivers and associated methods
    22.
    发明授权
    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:US07272373B2

    公开(公告)日:2007-09-18

    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。

    AM/FM tuner saw filter-less architecture using AM frequency band up-conversion
    23.
    发明申请
    AM/FM tuner saw filter-less architecture using AM frequency band up-conversion 审中-公开
    AM / FM调谐器使用AM频段上变频来实现无滤波器架构

    公开(公告)号:US20070178863A1

    公开(公告)日:2007-08-02

    申请号:US11471917

    申请日:2006-06-21

    CPC classification number: H03J1/0008 H04B1/0096

    Abstract: A receiver for AM and FM broadcast signals is disclosed. FM signals are received from an FM antenna and then processed by receive path circuitry or an FM tuner integrated circuit (IC) to produce audio output signals, such as digital audio output signals. The AM signals are received by an AM antenna and then up-converted using a fixed-clock to a frequency range nearer to the FM signal frequencies. The up-converted AM frequencies are then processed using the receive path circuitry. A multiplexer (MUX) allows for selection of the FM signals or the up-converted AM signals to be passed through for signal processing.

    Abstract translation: 公开了用于AM和FM广播信号的接收机。 FM信号从FM天线接收,然后由接收路径电路或FM调谐器集成电路(IC)处理,以产生音频输出信号,例如数字音频输出信号。 AM信号由AM天线接收,然后使用固定时钟上变频到更接近FM信号频率的频率范围。 然后使用接收路径电路处理上变频的AM频率。 多路复用器(MUX)允许选择要传送的FM信号或上变频的AM信号进行信号处理。

    Calibrated low-noise current and voltage references and associated methods
    24.
    发明授权
    Calibrated low-noise current and voltage references and associated methods 有权
    校准的低噪声电流和电压参考及相关方法

    公开(公告)号:US07177610B2

    公开(公告)日:2007-02-13

    申请号:US10081121

    申请日:2002-02-22

    Abstract: A low-noise current reference circuitry includes a voltage source, a current source, and a controller. The voltage source generates a reference voltage. The current source provides a low-noise output current in response to a control signal. The controller provides the control signal based at least in part on the relative magnitudes of the reference voltage and a voltage derived from the output current. A low-noise voltage reference circuitry includes a reference voltage source, a voltage source, and a controller. The reference voltage source generates a reference voltage. The voltage source provides a low-noise output voltage in response to a control signal. The controller provides the control signal based at least in part on the relative magnitudes of the output voltage and the reference voltage.

    Abstract translation: 低噪声电流参考电路包括电压源,电流源和控制器。 电压源产生参考电压。 电流源提供响应于控制信号的低噪声输出电流。 控制器至少部分地基于参考电压的相对幅度和从输出电流导出的电压来提供控制信号。 低噪声电压参考电路包括参考电压源,电压源和控制器。 参考电压源产生参考电压。 电压源响应于控制信号提供低噪声输出电压。 控制器至少部分地基于输出电压和参考电压的相对幅度提供控制信号。

    Integrated low-IF terrestrial audio broadcast receiver and associated method
    25.
    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:US08532601B2

    公开(公告)日:2013-09-10

    申请号:US13293274

    申请日:2011-11-10

    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。

    Digital architecture for radio-frequency apparatus and associated methods
    26.
    发明授权
    Digital architecture for radio-frequency apparatus and associated methods 有权
    射频设备数字架构及相关方法

    公开(公告)号:US08224259B2

    公开(公告)日:2012-07-17

    申请号:US12715361

    申请日:2010-03-01

    Abstract: 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.

    Abstract translation: 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。

    Input stage for an amplifier
    27.
    发明授权
    Input stage for an amplifier 有权
    放大器的输入级

    公开(公告)号:US08203385B2

    公开(公告)日:2012-06-19

    申请号:US12692730

    申请日:2010-01-25

    CPC classification number: H04B1/18 H03F3/45183

    Abstract: 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.

    Abstract translation: 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。

    Digital architecture using one-time programmable (OTP) memory
    28.
    发明授权
    Digital architecture using one-time programmable (OTP) memory 失效
    数字架构采用一次性可编程(OTP)存储器

    公开(公告)号:US07613913B2

    公开(公告)日:2009-11-03

    申请号:US11385520

    申请日:2006-03-21

    CPC classification number: G06F8/60

    Abstract: In one aspect, the present invention includes an apparatus having a digital signal processor (DSP), a controller coupled to the DSP to provide control signals to the DSP, and a one-time programmable (OTP) memory coupled to the DSP and the controller. The OTP memory may include multiple code portions including a first code block to control the DSP and a second code block to control the controller.

    Abstract translation: 一方面,本发明包括具有数字信号处理器(DSP)的装置,耦合到DSP以向DSP提供控制信号的控制器以及耦合到DSP和控制器的一次可编程(OTP)存储器 。 OTP存储器可以包括多个代码部分,包括用于控制DSP的第一代码块和用于控制控制器的第二代码块。

    Input stage for an amplifier
    29.
    发明申请
    Input stage for an amplifier 有权
    放大器的输入级

    公开(公告)号:US20080204144A1

    公开(公告)日:2008-08-28

    申请号:US12069604

    申请日:2008-02-12

    CPC classification number: H04B1/18 H03F3/45183

    Abstract: 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.

    Abstract translation: 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。

    Highly integrated radio-frequency apparatus and associated methods
    30.
    发明授权
    Highly integrated radio-frequency apparatus and associated methods 有权
    高度集成的射频设备及相关方法

    公开(公告)号:US07324496B1

    公开(公告)日:2008-01-29

    申请号:US10426042

    申请日:2003-04-29

    CPC classification number: H04B15/04

    Abstract: A method of operating a radio-frequency (RF) circuitry and a signal-processing circuitry in a mobile telephone apparatus includes operating the RF circuitry during a first time period. During the first period, the RF circuitry generates a set of data from an RF signal received by the mobile telephone apparatus. The method further includes storing the set of data in a storage device. The method also includes operating the signal-processing circuitry during a second time period to process the set of data.

    Abstract translation: 在移动电话设备中操作射频(RF)电路和信号处理电路的方法包括在第一时间段内操作RF电路。 在第一时段期间,RF电路从由移动电话设备接收的RF信号产生一组数据。 该方法还包括将该组数据存储在存储设备中。 该方法还包括在第二时间段期间操作信号处理电路以处理该组数据。

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