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    DIGITAL ARCHITECTURE FOR RADIO-FREQUENCY APPARATUS AND ASSOCIATED METHODS
    5.
    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

    申请人： Richard T. Behrens ,  Tod Paulus ,  Mark S. Spurbeck ,  Vishnu S. Srinivasan ,  Donald A. Kerth ,  Jeffrey W. Scott ,  G. Tyson Tuttle ,  G. Diwakar Vishakhadatta

    发明人： Richard T. Behrens ,  Tod Paulus ,  Mark S. Spurbeck ,  Vishnu S. Srinivasan ,  Donald A. Kerth ,  Jeffrey W. Scott ,  G. Tyson Tuttle ,  G. Diwakar Vishakhadatta

    IPC分类号： H04L27/00 ,  H04B1/10

    CPC分类号： H04B1/28 ,  H04B1/0003 ,  H04B1/38 ,  H04B1/406 ,  H04B15/02 ,  H04B15/04 ,  H04B2215/064

    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。

    Peak detector
    6.
    发明授权
    Peak detector 有权
    峰值检测器

    公开(公告)号：US07548738B2

    公开(公告)日：2009-06-16

    申请号：US11172477

    申请日：2005-06-30

    申请人： Vishnu S. Srinivasan ,  G. Tyson Tuttle

    发明人： Vishnu S. Srinivasan ,  G. Tyson Tuttle

    IPC分类号： H04B7/00 ,  H04B17/00

    CPC分类号： H03G3/3068

    摘要： A receiver includes a gain stage, a peak detector and a processor. The gain stage provides an output signal, and the peak detector provides a binary indication of whether the output signal has reached a predetermined threshold. The processor controls the gain stage in response to the binary indication.

    摘要翻译： 接收机包括增益级，峰值检测器和处理器。 增益级提供输出信号，峰值检测器提供输出信号是否达到预定阈值的二进制指示。 处理器响应于二进制指示来控制增益级。

    Calibrated low-noise current and voltage references and associated methods
    7.
    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

    申请人： Jeffrey W. Scott ,  G. Diwakar Vishakhadatta ,  Donald A. Kerth ,  Richard T. Behrens ,  G. Tyson Tuttle ,  Vishnu S. Srinivasan

    发明人： Jeffrey W. Scott ,  G. Diwakar Vishakhadatta ,  Donald A. Kerth ,  Richard T. Behrens ,  G. Tyson Tuttle ,  Vishnu S. Srinivasan

    IPC分类号： H04B1/06 ,  H04B7/00

    CPC分类号： H04B1/0003 ,  H04B1/28 ,  H04B1/406 ,  H04B15/02 ,  H04B15/04 ,  H04B2215/064

    摘要： 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.

    摘要翻译： 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。

    Radio-frequency apparatus and associated methods
    8.
    发明授权
    Radio-frequency apparatus and associated methods 有权
    射频设备及相关方法

    公开(公告)号：US08467483B2

    公开(公告)日：2013-06-18

    申请号：US10388206

    申请日：2003-03-13

    申请人： G. Diwakar Vishakhadatta ,  Donald A. Kerth ,  Jeffrey W. Scott ,  Richard T. Behrens ,  G. Tyson Tuttle ,  Vishnu S. Srinivasan

    发明人： G. Diwakar Vishakhadatta ,  Donald A. Kerth ,  Jeffrey W. Scott ,  Richard T. Behrens ,  G. Tyson Tuttle ,  Vishnu S. Srinivasan

    IPC分类号： H03D1/04 ,  H04L25/00

    CPC分类号： H04B1/0007 ,  H04B1/0003 ,  H04B1/0039 ,  H04B1/28 ,  H04B1/406

    摘要： A radio-frequency apparatus includes an integrated circuit. The integrated circuit includes receiver analog circuitry, receiver digital circuitry, a digital-to-analog converter, and a signal selector. The receiver analog circuitry receives radio-frequency signals, and provides a first digital signal. The receiver digital circuitry receives the first digital signal, and provides a second digital signal. The digital-to-analog converter converts the second digital signal into a first analog signal. The signal selector receives the second digital signal and the first analog signal, and selectively provides one of the second digital signal and the first analog signal as an output signal of the integrated circuit.

    摘要翻译： 射频装置包括集成电路。 集成电路包括接收机模拟电路，接收机数字电路，数模转换器和信号选择器。 接收机模拟电路接收射频信号，并提供第一数字信号。 接收机数字电路接收第一数字信号，并提供第二数字信号。 数模转换器将第二数字信号转换为第一模拟信号。 信号选择器接收第二数字信号和第一模拟信号，并且选择性地提供第二数字信号和第一模拟信号中的一个作为集成电路的输出信号。

    Digital architecture for radio-frequency apparatus and associated methods
    9.
    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：US07702362B2

    公开(公告)日：2010-04-20

    申请号：US11287995

    申请日：2005-11-28

    申请人： Richard T. Behrens ,  Tod Paulus ,  Mark S. Spurbeck ,  Vishnu S. Srinivasan ,  Donald A. Kerth ,  Jeffrey W. Scott ,  G. Tyson Tuttle ,  G. Diwakar Vishakhadatta

    发明人： Richard T. Behrens ,  Tod Paulus ,  Mark S. Spurbeck ,  Vishnu S. Srinivasan ,  Donald A. Kerth ,  Jeffrey W. Scott ,  G. Tyson Tuttle ,  G. Diwakar Vishakhadatta

    IPC分类号： H04B1/38 ,  H04M1/00

    CPC分类号： H04B1/28 ,  H04B1/0003 ,  H04B1/38 ,  H04B1/406 ,  H04B15/02 ,  H04B15/04 ,  H04B2215/064

    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。

    Interchangeable receive inputs for band and system swappability in communication systems and related methods
    10.
    发明授权
    Interchangeable receive inputs for band and system swappability in communication systems and related methods 有权
    通信系统中的频带和系统可交换的可互换接收输入及相关方法

    公开(公告)号：US07333831B2

    公开(公告)日：2008-02-19

    申请号：US11231182

    申请日：2005-09-20

    申请人： Vishnu S. Srinivasan ,  Gary B. Levy ,  Brett O. Mitchelson ,  Donald A. Kerth ,  Eric R. Garlepp ,  G. Tyson Tuttle

    发明人： Vishnu S. Srinivasan ,  Gary B. Levy ,  Brett O. Mitchelson ,  Donald A. Kerth ,  Eric R. Garlepp ,  G. Tyson Tuttle

    IPC分类号： H04B1/18

    CPC分类号： H04B1/006

    摘要： Interchangeable high band low-noise-amplifiers (LNAs) and low band low-noise-amplifiers (LNAs) and related methods are disclosed that greatly enhance the efficiency of designing handsets for different combinations of frequency bands. The input signals to particular pins on a receiver or transceiver integrated circuit (IC) are swappable such that multiple frequency bands can be input to the same input pins thereby allowing for simplified system design. Efficient programmable techniques are also disclosed for controlling a swap mode within communication ICs. These interchangeable or band swappable input paths, for example, can be utilized to allow interchangeability between high band (PCS, DCS) and low band (GSM, E-GSM) inputs for cellular communications. In this way, for example, handset manufacturers can build a single printed circuit board (PCB) that can be utilized for cellular communications in the United States of America, where 850 MHz (GSM) and 1900 MHz (PCS) bands are utilized, and in Europe, wherein 900 MHz (E-GSM) and 1800 MHz (DCS) bands are utilized.

    摘要翻译： 公开了可互换的高频带低噪声放大器（LNA）和低频带低噪声放大器（LNA）及相关方法，这大大提高了针对不同频带组合设计手机的效率。 接收器或收发器集成电路（IC）上的特定引脚的输入信号是可交换的，使得可以将多个频带输入到相同的输入引脚，从而允许简化的系统设计。 还公开了用于控制通信IC内的交换模式的高效可编程技术。 例如，这些可互换或频带可交换的输入路径可用于允许用于蜂窝通信的高频带（PCS，DCS）和低频（GSM，E-GSM）输入之间的互换性。 以这种方式，例如，手机制造商可以构建可用于在美国使用850MHz（GSM）和1900MHz（PCS）频带的美国的蜂窝通信的单个印刷电路板（PCB），以及 在欧洲，其中使用900MHz（E-GSM）和1800MHz（DCS）频带。