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    • 1. 发明授权
    • Switching power supply operation with reduced harmonic interference
    • 开关电源运行,减少谐波干扰
    • US08514595B1
    • 2013-08-20
    • US12534996
    • 2009-08-04
    • Paul J. HustedRichard T. Chang
    • Paul J. HustedRichard T. Chang
    • H02J1/02
    • H02M1/44
    • Methods of calibrating and operating a switching power supply in an electronic system are disclosed. A switching power supply is calibrated to determine a switching frequency. Harmonic frequencies that are multiples of the switching frequency are determined. A further determination is made as to whether any of the harmonic frequencies falls within one of one or more frequency bands of interest. A second switching frequency is determined such that none of its corresponding harmonic frequencies falls within a frequency band of interest. During operation of the system, the switching power supply is configured to operate at the second switching frequency if operation occurs within one of the frequency bands of interest.
    • 公开了一种在电子系统中校准和操作开关电源的方法。 开关电源被校准以确定开关频率。 确定开关频率倍数的谐波频率。 进一步确定任何谐波频率是否落入一个或多个感兴趣频带中的一个。 确定第二切换频率,使得其相应的谐波频率中没有一个落入感兴趣的频带内。 在系统运行期间,如果在感兴趣的频带之一内发生操作,则开关电源被配置为以第二开关频率工作。
    • 3. 发明授权
    • Wireless communication using beam forming and diversity
    • 使用波束形成和分集的无线通信
    • US09054766B2
    • 2015-06-09
    • US13416877
    • 2012-03-09
    • James ChoPaul J. Husted
    • James ChoPaul J. Husted
    • H04B7/216H04B7/212H04B7/08H04B7/06H04W24/00
    • H04B7/086H04B7/0617H04B7/0814H04W24/00
    • A method and apparatus for wirelessly transmitting real-time data streams is described. To ensure continuous data flow, fast diversity and slow diversity can be used. Fast diversity chooses a receive antenna based on received signal parameters, such as signal strength, during the transmission header and prior to information transfer. Slow diversity stores received signal parameters from previous packets, associates the parameters with a selected antenna, and uses the parameter history to denote a “default” antenna. Additionally, receive and/or transmit beam forming can be used to maintain continuous communication between stations. Beam forming, which combines antenna signals to maximize performance, is possible when at least two transmit/receive signal processing chains are available.
    • 描述了一种无线传输实时数据流的方法和装置。 为了确保连续的数据流,可以使用快速的分集和缓慢的分集。 快速分集基于接收到的信号参数(例如信号强度)在传输报头期间以及信息传输之前选择接收天线。 慢分集存储来自先前分组的接收信号参数,将参数与选定天线相关联,并使用参数历史来表示“默认”天线。 此外,可以使用接收和/或发射波束形成来维持站点之间的连续通信。 当至少两个发送/接收信号处理链可用时,可以组合天线信号以最大化性能的波束形成。
    • 6. 发明授权
    • Calibration of synthesizer phase using reference harmonic
    • 使用参考谐波校准合成器相位
    • US08358728B2
    • 2013-01-22
    • US12987059
    • 2011-01-07
    • Paul J. Husted
    • Paul J. Husted
    • H03D3/24
    • H04L27/0014G01S19/235G01S19/36H04B1/3805H04L2027/0016H04L2027/0051H04L2027/0067
    • Arbitrary phase variations of a shared frequency synthesizer can be calibrated using a reference harmonic each time the shared frequency synthesizer is allocated to a network device to enable one frequency synthesizer to be shared between multiple network devices. On determining that the shared frequency synthesizer has been allocated to the network device, an output frequency of the shared frequency synthesizer can be aligned with a predetermined reference frequency that is associated with an operating frequency band of the network device. A phase correction factor associated with the shared frequency synthesizer can be calculated from a signal calculated based, at least in part, on the output frequency of the shared frequency synthesizer and the predetermined reference frequency. The phase correction factor is applied to a signal received at the network device to correct a phase error associated with the shared frequency synthesizer.
    • 可以在共享频率合成器被分配给网络设备时使用参考谐波来校准共享频率合成器的任意相位变化,以使得能够在多个网络设备之间共享一个频率合成器。 在确定共享频率合成器已经被分配给网络设备时,共享频率合成器的输出频率可以与与网络设备的工作频带相关联的预定参考频率对齐。 可以从至少部分地基于共享频率合成器的输出频率和预定参考频率计算的信号计算与共享频率合成器相关联的相位校正因子。 相位校正因子被应用于在网络设备处接收的信号,以校正与共享频率合成器相关联的相位误差。
    • 7. 发明申请
    • PAGING CHANNEL PREDICTION FOR BLUETOOTH PAGING PROCEDURE
    • 用于蓝牙寻呼程序的通道预测
    • US20120300812A1
    • 2012-11-29
    • US13116942
    • 2011-05-26
    • Yann Ly-GagnonPaul J. Husted
    • Yann Ly-GagnonPaul J. Husted
    • H04B1/713
    • H04W8/005H04W84/18
    • A Bluetooth paging procedure can implement a mechanism for predicting a Bluetooth paging channel in a paging channel hopping sequence. One or more Bluetooth paging channels, on which one or more page requests intended for a Bluetooth device were received, are determined from a plurality of Bluetooth communication channels. One of a plurality of paging channel hopping sequences associated with the Bluetooth device that comprises each of the one or more determined Bluetooth paging channels is identified. A time delay associated with determining a target Bluetooth paging channel from the plurality of Bluetooth communication channels on which to transmit a page response is determined. The target Bluetooth paging channel is determined based, at least in part, on the identified one of the plurality of the paging channel hopping sequences and the time delay.
    • 蓝牙寻呼过程可以实现用于在寻呼信道跳频序列中预测蓝牙寻呼信道的机制。 从多个蓝牙通信信道确定一个或多个蓝牙寻呼信道,其上接收到用于蓝牙设备的一个或多个寻呼请求。 识别与包括一个或多个确定的蓝牙寻呼信道中的每一个的蓝牙设备相关联的多个寻呼信道跳频序列之一。 确定与从其发送寻呼响应的多个蓝牙通信信道确定目标蓝牙寻呼信道相关联的时间延迟。 至少部分地基于所述多个寻呼信道跳频序列中的已识别的一个和所述时间延迟来确定所述目标蓝牙寻呼信道。
    • 8. 发明申请
    • CALIBRATION OF SYNTHESIZER PHASE USING REFERENCE HARMONIC
    • 使用参考谐波校正合成相
    • US20120177161A1
    • 2012-07-12
    • US12987059
    • 2011-01-07
    • Paul J. Husted
    • Paul J. Husted
    • H04L7/00
    • H04L27/0014G01S19/235G01S19/36H04B1/3805H04L2027/0016H04L2027/0051H04L2027/0067
    • Arbitrary phase variations of a shared frequency synthesizer can be calibrated using a reference harmonic each time the shared frequency synthesizer is allocated to a network device to enable one frequency synthesizer to be shared between multiple network devices. On determining that the shared frequency synthesizer has been allocated to the network device, an output frequency of the shared frequency synthesizer can be aligned with a predetermined reference frequency that is associated with an operating frequency band of the network device. A phase correction factor associated with the shared frequency synthesizer can be calculated from a signal calculated based, at least in part, on the output frequency of the shared frequency synthesizer and the predetermined reference frequency. The phase correction factor is applied to a signal received at the network device to correct a phase error associated with the shared frequency synthesizer.
    • 可以在共享频率合成器被分配给网络设备时使用参考谐波来校准共享频率合成器的任意相位变化,以使得能够在多个网络设备之间共享一个频率合成器。 在确定共享频率合成器已经被分配给网络设备时,共享频率合成器的输出频率可以与与网络设备的工作频带相关联的预定参考频率对齐。 可以从至少部分地基于共享频率合成器的输出频率和预定参考频率计算的信号计算与共享频率合成器相关联的相位校正因子。 相位校正因子被应用于在网络设备处接收的信号,以校正与共享频率合成器相关联的相位误差。