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1. 发明授权

US08024386B2 Apparatus and method for generating random number and data interaction system thereof 有权
标题翻译：用于生成随机数和数据交互系统的装置和方法
公开(公告)号：US08024386B2
公开(公告)日：2011-09-20
申请号：US11856459
申请日：2007-09-17
申请人： Anfei Song , Bo Li
发明人： Anfei Song , Bo Li
IPC分类号： G06F1/02 , G06F7/58
CPC分类号： G06F7/588
摘要： Embodiments of the present invention provide a random number generating apparatus, including a first level sampling module and a second level sampling module. The first level sampling module includes a first oscillator, a second oscillator and a first sampler capable of sampling the first oscillating signal with the second oscillating signal to generate a first output signal. The second level sampling module includes a voltage-controlled oscillator capable of generating a voltage-controlled oscillating signal by using the first output signal as a control voltage, a third oscillator capable of generating a third oscillating signal, and a second sampler, capable of sampling the third oscillating signal with the voltage-controlled oscillating signal and generating random numbers. The first level oscillator sampling provides a random control voltage for the second level oscillator sampling, therefore improving the randomicity of the second level oscillator sampling as well as the random number generating rate.
摘要翻译：本发明的实施例提供一种随机数生成装置，包括第一级采样模块和第二级采样模块。第一级采样模块包括第一振荡器，第二振荡器和第一采样器，其能够利用第二振荡信号对第一振荡信号进行采样以产生第一输出信号。第二级采样模块包括能够通过使用第一输出信号作为控制电压产生压控振荡信号的压控振荡器，能产生第三振荡信号的第三振荡器和能采样的第二采样器具有电压控制振荡信号的第三振荡信号并产生随机数。第一级振荡器采样为第二级振荡器采样提供随机控制电压，因此提高了第二级振荡器采样的随机性以及随机数生成速率。

2. 发明授权

US07928779B2 Methods and apparatuses for incremental bandwidth changes responsive to frequency changes of a phase-locked loop 有权
标题翻译：响应于锁相环的频率变化的增量带宽改变的方法和装置
公开(公告)号：US07928779B2
公开(公告)日：2011-04-19
申请号：US12486583
申请日：2009-06-17
申请人： Anfei Song
发明人： Anfei Song
IPC分类号： H03L7/06
CPC分类号： H03L7/1072
摘要： In a phase-locked loop, a desired change in frequency is indicated. The phase-locked loop locks to the new frequency and a loop bandwidth of the phase-locked loop is changed. In changing the loop bandwidth, a frequency adjustment signal to a voltage-controlled oscillator may include a voltage spike. The voltage spike is reduced by detecting a lock when the reference clock and a feedback clock reach a same frequency, then waiting for a time delay after the detecting the lock, and adjusting a current level of a charge pump pulse by an incremental amount to achieve a fractional portion of a new loop bandwidth. The charge pump pulse is filtered to generate the frequency adjustment signal and the frequency spike reduction process is repeated until the new loop bandwidth is achieved.
摘要翻译：在锁相环中，表示期望的频率变化。锁相环锁定到新频率，锁相环的环路带宽改变。在改变环路带宽时，到压控振荡器的频率调节信号可以包括电压尖峰。当参考时钟和反馈时钟达到相同的频率时，通过检测锁定来减小电压尖峰，然后在检测到锁定之后等待时间延迟，并且将电荷泵脉冲的电流水平调整为增加量以实现新的循环带宽的一小部分。对电荷泵脉冲进行滤波以产生频率调整信号，并重复频率峰值降低过程，直到实现新的环路带宽。

3. 发明申请

US20100321074A1 METHODS AND APPARATUSES FOR INCREMENTAL BANDWIDTH CHANGES RESPONSIVE TO FREQUENCY CHANGES OF A PHASE-LOCKED LOOP 有权
标题翻译：对相位锁定环的频率变化的增加带宽变化的方法和装置
公开(公告)号：US20100321074A1
公开(公告)日：2010-12-23
申请号：US12486583
申请日：2009-06-17
申请人： Anfei Song
发明人： Anfei Song
IPC分类号： H03L7/06
CPC分类号： H03L7/1072
摘要： In a phase-locked loop, a desired change in frequency is indicated. The phase-locked loop locks to the new frequency and a loop bandwidth of the phase-locked loop is changed. In changing the loop bandwidth, a frequency adjustment signal to a voltage-controlled oscillator may include a voltage spike. The voltage spike is reduced by detecting a lock when the reference clock and a feedback clock reach a same frequency, then waiting for a time delay after the detecting the lock, and adjusting a current level of a charge pump pulse by an incremental amount to achieve a fractional portion of a new loop bandwidth. The charge pump pulse is filtered to generate the frequency adjustment signal and the frequency spike reduction process is repeated until the new loop bandwidth is achieved.
摘要翻译：在锁相环中，表示期望的频率变化。锁相环锁定到新频率，锁相环的环路带宽改变。在改变环路带宽时，到压控振荡器的频率调节信号可以包括电压尖峰。当参考时钟和反馈时钟达到相同的频率时，通过检测锁定来减小电压尖峰，然后在检测到锁定之后等待时间延迟，并且将电荷泵脉冲的电流水平调整为增加量以实现新的循环带宽的一小部分。对电荷泵脉冲进行滤波以产生频率调整信号，并重复频率峰值降低过程，直到实现新的环路带宽。

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