Agile frequency synthesizer scheme for fast hopping, low phase noise applications
    1.
    发明授权
    Agile frequency synthesizer scheme for fast hopping, low phase noise applications 有权
    用于快速跳频,低相位噪声应用的敏捷频率合成器方案

    公开(公告)号:US08503503B1

    公开(公告)日:2013-08-06

    申请号:US11771944

    申请日:2007-06-29

    CPC classification number: H04B1/7136 H04B2001/71365

    Abstract: A system and method for frequency hopping precalibrates a subset of a plurality of channels, storing the channels' associated curves in a computer readable medium. Before hopping to a new channel, decision making circuitry can access the precalibrated curves. If the destination channel has an associated curve, then the system can use the values from that curve when hopping to a new channel. If the destination channel does not have an associated precalibrated curve, then the system can identify a closely situated channel with a precalibrated curve and use an offset value to settle at the destination channel. According to another aspect of the present invention, the offsets can be updated. According to a further aspect of the invention, the updated can be done dynamically.

    Abstract translation: 用于跳频的系统和方法预先校准多个信道的子集,将信道的相关曲线存储在计算机可读介质中。 在跳到新频道之前,决策电路可以访问预校准的曲线。 如果目标通道具有相关联的曲线,则当跳到新通道时,系统可以使用该曲线中的值。 如果目的地信道没有相关联的预校准曲线,则系统可以使用预校准曲线识别具有相似位置的信道,并使用偏移值来定位在目的地信道。 根据本发明的另一方面,可以更新偏移。 根据本发明的另一方面,可以动态地进行更新。

    Interference detection using a moving window
    3.
    发明授权
    Interference detection using a moving window 有权
    使用移动窗口进行干扰检测

    公开(公告)号:US07388529B1

    公开(公告)日:2008-06-17

    申请号:US11501338

    申请日:2006-08-09

    CPC classification number: H03M1/181 H03M1/186

    Abstract: A system for detecting interference includes an automatic gain control (AGC) module, a digital signal processing (DSP) module, and a control module. The AGC module selectively generates a gain-locked signal when an input signal is received. The DSP module communicates with the AGC module and selectively generates a sync-detect signal when the input signal is received. The control module communicates with the AGC module and the DSP module, and generates a control signal when the DSP module does not generate the sync-detect signal within a predetermined time after the AGC module generates the gain-locked signal.

    Abstract translation: 用于检测干扰的系统包括自动增益控制(AGC)模块,数字信号处理(DSP)模块和控制模块。 当接收到输入信号时,AGC模块选择性地产生增益锁定信号。 DSP模块与AGC模块进行通信,并且在接收到输入信号时选择性地产生同步检测信号。 控制模块与AGC模块和DSP模块进行通信,并且在AGC模块生成增益锁定信号之后的预定时间内DSP模块不产生同步检测信号时,产生控制信号。

    Bluetooth scan modes
    4.
    发明授权
    Bluetooth scan modes 有权
    蓝牙扫描模式

    公开(公告)号:US08649734B1

    公开(公告)日:2014-02-11

    申请号:US13604563

    申请日:2012-09-05

    CPC classification number: H04B7/2612 H03J1/0091

    Abstract: Different scan modes are provided for Bluetooth devices. In at least some embodiments, a narrowband scanning mode looks for signal energy on individual transmission frequencies at a time. By looking for signal energy rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A midband scanning mode looks for signal energy across multiple different frequencies at a time. Again, by looking for signal energy across multiple different frequencies rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A wideband scanning mode looks for signal energies across all relevant frequencies at a time. At least some embodiments enable a Bluetooth device to switch between scanning modes.

    Abstract translation: 为蓝牙设备提供了不同的扫描模式。 在至少一些实施例中,窄带扫描模式一次在单个传输频率上寻找信号能量。 通过寻找信号能量而不是解码发送的分组,蓝牙设备中的至少一些组件可以保持在空闲或休眠状态。 中频扫描模式一次查找多个不同频率的信号能量。 再次,通过在多个不同的频率上寻找信号能量而不是解码传输的分组,蓝牙设备中的至少一些组件可以保持在空闲或静止状态。 宽带扫描模式一次查找所有相关频率的信号能量。 至少一些实施例使得蓝牙设备能够在扫描模式之间切换。

    Interference detection using a moving window
    5.
    发明授权
    Interference detection using a moving window 有权
    使用移动窗口进行干扰检测

    公开(公告)号:US07978106B1

    公开(公告)日:2011-07-12

    申请号:US12983794

    申请日:2011-01-03

    CPC classification number: H03M1/181 H03M1/186

    Abstract: A receiver including an automatic gain control module, a digital signal processor module, and a control module. The automatic gain control module has a gain that varies from a nominal value in response to the receiver receiving an input signal. The automatic gain control module is configured to generate a first signal in response to the gain settling at a value different from the nominal value. In response to the input signal not being an interference signal, the digital signal processor module is configured to process the input signal and generate a second signal. Subsequent to the first signal being generated and prior to the second signal being generated, the control module is configured to determine whether the input signal is an interference signal based on whether the second signal is generated within a predetermined time period subsequent to the first signal being generated.

    Abstract translation: 一种接收机,包括自动增益控制模块,数字信号处理器模块和控制模块。 自动增益控制模块具有响应于接收器接收输入信号而从标称值变化的增益。 自动增益控制模块被配置为响应于增益以不同于标称值的值生成第一信号。 响应于输入信号不是干扰信号,数字信号处理器模块被配置为处理输入信号并产生第二信号。 在产生第一信号之后并且在产生第二信号之前,控制模块被配置为基于在第一信号是在第一信号之后的预定时间段内是否产生第二信号来确定输入信号是否是干扰信号 生成。

    Strong short-pulse interference detection method
    6.
    发明授权
    Strong short-pulse interference detection method 有权
    强短脉冲干扰检测方法

    公开(公告)号:US07623052B1

    公开(公告)日:2009-11-24

    申请号:US11501341

    申请日:2006-08-09

    CPC classification number: H03G3/3078

    Abstract: A system for detecting interference includes an automatic gain control (AGC) module, a peak detection module, and a control module. The AGC module selectively generates a gain-locked signal when an input signal is received. The peak detector module communicates with the AGC module and selectively generates a peak-detect signal. The control module communicates with the AGC module and the peak detector module and generates a control signal when the control module does not receive the gain-locked signal within a predetermined time after receiving the peak-detect signal.

    Abstract translation: 用于检测干扰的系统包括自动增益控制(AGC)模块,峰值检测模块和控制模块。 当接收到输入信号时,AGC模块选择性地产生增益锁定信号。 峰值检测器模块与AGC模块通信,并选择性地产生峰值检测信号。 当控制模块在接收到峰值检测信号之后的预定时间内没有接收到增益锁定信号时,控制模块与AGC模块和峰值检测器模块通信并产生控制信号。

    Transmitter I/Q mismatch calibration for low IF design systems
    7.
    发明授权
    Transmitter I/Q mismatch calibration for low IF design systems 有权
    低IF设计系统的发射机I / Q不匹配校准

    公开(公告)号:US07382297B1

    公开(公告)日:2008-06-03

    申请号:US11503044

    申请日:2006-08-11

    CPC classification number: H04L27/3863 H03C5/00 H04L27/364

    Abstract: A calibration module includes a first input that receives a reference signal, a second input that receives a crosstalk signal, and first and second absolute value modules that generate first and second magnitude signals based on the reference signal and the crosstalk signal, respectively. A first module generates an amplitude correction signal for a quadrature-amplitude modulated (QAM) signal based on the first and second magnitude signals. A second module generates a phase correction signal for the QAM signal based on the reference signal and the crosstalk signal.

    Abstract translation: 校准模块包括接收参考信号的第一输入端,接收串扰信号的第二输入端以及分别基于参考信号和串扰信号产生第一和第二幅度信号的第一和第二绝对值模块。 第一模块基于第一和第二幅度信号产生用于正交幅度调制(QAM)信号的振幅校正信号。 第二模块基于参考信号和串扰信号产生用于QAM信号的相位校正信号。

    Interference detection using a moving window
    8.
    发明授权
    Interference detection using a moving window 有权
    使用移动窗口进行干扰检测

    公开(公告)号:US07864091B1

    公开(公告)日:2011-01-04

    申请号:US12157255

    申请日:2008-06-09

    CPC classification number: H03M1/181 H03M1/186

    Abstract: A system comprises a gain control module that selectively generates a gain locked signal based on a wireless input signal. A sync detect module that selectively generates a sync detect signal based on the wireless input signal. An interference detection module that selectively generates a wireless interference detection signal based on the gain locked signal and the sync detect signal.

    Abstract translation: 一种系统包括:增益控制模块,其根据无线输入信号选择性地产生增益锁定信号。 同步检测模块,其基于无线输入信号选择性地产生同步检测信号。 干扰检测模块,其基于增益锁定信号和同步检测信号有选择地生成无线干扰检测信号。

    Bluetooth wideband scan mode
    9.
    发明授权
    Bluetooth wideband scan mode 有权
    蓝牙宽带扫描模式

    公开(公告)号:US08369782B1

    公开(公告)日:2013-02-05

    申请号:US12190251

    申请日:2008-08-12

    CPC classification number: H04B7/2612 H03J1/0091

    Abstract: Different scan modes are provided for Bluetooth devices. In at least some embodiments, a narrowband scanning mode looks for signal energy on individual transmission frequencies at a time. By looking for signal energy rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A midband scanning mode looks for signal energy across multiple different frequencies at a time. Again, by looking for signal energy across multiple different frequencies rather than decoding transmitted packets, at least some of the components in a Bluetooth device can remain in an idle or rest state. A wideband scanning mode looks for signal energies across all relevant frequencies at a time. At least some embodiments enable a Bluetooth device to switch between scanning modes.

    Abstract translation: 为蓝牙设备提供了不同的扫描模式。 在至少一些实施例中,窄带扫描模式一次在单个传输频率上寻找信号能量。 通过寻找信号能量而不是解码发送的分组,蓝牙设备中的至少一些组件可以保持在空闲或休眠状态。 中频扫描模式一次查找多个不同频率的信号能量。 再次,通过在多个不同的频率上寻找信号能量而不是解码传输的分组,蓝牙设备中的至少一些组件可以保持在空闲或静止状态。 宽带扫描模式一次查找所有相关频率的信号能量。 至少一些实施例使得蓝牙设备能够在扫描模式之间切换。

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