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    • 3. 发明授权
    • Jitter compensated numerically controlled oscillator
    • 抖动补偿数控振荡器
    • US09182779B1
    • 2015-11-10
    • US14216395
    • 2014-03-17
    • Marvell International Ltd.
    • Robert MackTimothy Chen
    • G06F1/02H03B28/00H03L1/00G06F1/03H03L7/099
    • G06F1/022G06F1/0328G06F1/08H03B28/00H03B2200/0088H03L1/00H03L7/0994
    • A method for compensating NCO jitter by changing a step value used to increment an accumulator in the NCO to make up for inaccuracies, or jitters. In one approach, a remainder in the accumulator may be monitored and a compensated clock close to the current edge of an ideal clock may be generated. In another approach, a compensated clock close to the next edge of the ideal clock may be generated after the current edge of the ideal clock is missed. The step value may be stored in a memory, which may be a register. A jitter compensator may include a comparator for monitoring the remainder in the accumulator or a detector for detecting whether an ideal clock has been missed. The jitter compensator may also change the step value to a step value for a faster clock to compensate jitter.
    • 一种用于通过改变用于增加NCO中的累加器的步长值来补偿NCO抖动以补偿不准确或不稳定的方法。 在一种方法中,可以监视累加器中的余数,并且可以产生接近理想时钟的当前边缘的补偿时钟。 在另一种方法中,在理想时钟的当前边缘被错过之后,可以产生靠近理想时钟的下一个边缘的补偿时钟。 步数值可以存储在可以是寄存器的存储器中。 抖动补偿器可以包括用于监视累加器中的余数的比较器或用于检测是否错过理想时钟的检测器。 抖动补偿器还可以将步长值改变为更快时钟的步进值以补偿抖动。
    • 4. 发明授权
    • Reducing interference between wireless networks
    • 减少无线网络之间的干扰
    • US08498575B1
    • 2013-07-30
    • US13726682
    • 2012-12-26
    • Marvell International Ltd.
    • Robert Mack
    • H04B15/00
    • H04W52/0206H04W4/00H04W16/14Y02D70/142Y02D70/144
    • Devices, systems, methods, and other embodiments associated with reducing interference between wireless networks are described. In one embodiment, an apparatus includes negotiation logic implemented in at least hardware configured for determining a quiet interval between a first device and a second device, where the first device and the second device communicate wirelessly via a first network according to a first wireless protocol and are within a wireless area of a second network that communicates with a second wireless protocol. Control logic implemented in at least hardware is configured for controlling wireless transmission of data from at least the first device on the first network by prohibiting transmissions from the first device during the quiet interval.
    • 描述了与减少无线网络之间的干扰相关联的设备,系统,方法和其他实施例。 在一个实施例中,一种装置包括在被配置用于确定第一设备和第二设备之间的静默间隔的至少硬件中实现的协商逻辑,其中第一设备和第二设备根据第一无线协议经由第一网络以无线方式进行通信, 在与第二无线协议通信的第二网络的无线区域内。 至少硬件实现的控制逻辑被配置为通过在静默间隔期间禁止来自第一设备的传输来控制来自第一网络上的至少第一设备的数据的无线传输。
    • 7. 发明授权
    • Bluetooth wideband scan mode
    • 蓝牙宽带扫描模式
    • US08897706B1
    • 2014-11-25
    • US13757276
    • 2013-02-01
    • Marvell International Ltd.
    • Yui LinLawrence TsePoh Boon LeongMinko TsaiRobert MackYungping Hsu
    • H04B7/00H04B1/18H04W4/00H04B7/26
    • H04B7/2612H03J1/0091
    • 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.
    • 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。