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    • 1. 发明申请
    • PILLOW BOOK
    • 枕头书
    • US20070174969A1
    • 2007-08-02
    • US11345577
    • 2006-02-01
    • Michael Nakamura
    • Michael Nakamura
    • A47G9/10
    • A47G9/1045B42D1/007B42D1/008B42D3/10
    • A pillow book with flexible fabric sheets disposed between to pillow covers. A first pillow includes a first pillow interior edge portion and a second pillow includes a second pillow interior edge portion. The second pillow interior edge portion is connected to the first pillow interior edge portion. The pillow book includes a plurality of leaves connected to the first and second pillows and disposed between the first and second pillows when the pillow book is in a closed position. Each of the plurality of leaves has a leaf interior edge portion disposed between and connected to the first pillow interior edge portion and the second pillow interior edge portion. The leaves are formed from a single folded fabric sheet. Each of the plurality of leaves defines a pocket containing a nonwoven support sheet.
    • 一个枕头书,配有柔软的织物片布置在枕套之间。 第一枕头包括第一枕头内部边缘部分,第二枕头包括第二枕头内部边缘部分。 第二枕头内边缘部分连接到第一枕头内边缘部分。 枕头书包括连接到第一和第二枕头的多个叶片,并且当枕头书处于关闭位置时,其设置在第一和第二枕头之间。 多个叶片中的每一个具有设置在第一枕头内部边缘部分和第二枕头内部边缘部分之间并连接到第一枕头内部边缘部分和第二枕头内部边缘部分之间的叶片内部边缘 叶子由单个折叠的织物片形成。 多个叶片中的每一个限定了包含非织造支撑片材的口袋。
    • 5. 发明申请
    • Flexible timebase for EYE diagram
    • EYE图灵活时基
    • US20070121714A1
    • 2007-05-31
    • US11274687
    • 2005-11-14
    • Daniel BakerBarry McKibbenMichael NakamuraEvan AlbrightScott ZinkMichael Overton
    • Daniel BakerBarry McKibbenMichael NakamuraEvan AlbrightScott ZinkMichael Overton
    • H04B17/00H04B3/46H04Q1/20
    • H04L1/205G01R13/0254G01R31/31711G01R31/31725G01R31/31727
    • A flexible timebase for eye diagrams uses a stable free running oscillator as a sample clock for equivalent time sampling of an input serial digital signal and of a reference signal, such as a sine wave, derived from a subdivided recovered clock of the input serial digital signal. The reference signal samples are provided to a digital phase-locked loop that provides the flexible timebase to an eye pattern generator. The eye pattern generator accumulates the input serial digital signal samples at times corresponding to the reference signal samples to produce the eye diagram. A linear phase detector in the digital phase locked loop converts the reference signal samples to a complex signal using a Hilbert transform and then to a linear ramp of phase values using a CORDIC algorithm with arctangent lookup table. A subtractor is then used to subtract the digital phase-locked loop feedback from the linear ramp to provide the input to the loop filter.
    • 用于眼图的灵活时基使用稳定的自由运行振荡器作为采样时钟,用于等效时间采样输入串行数字信号和参考信号,例如从输入串行数字信号的细分恢复时钟导出的正弦波 。 将参考信号样本提供给数字锁相环,其向眼图发生器提供灵活的时基。 眼图发生器在对应于参考信号样本的时间累积输入的串行数字信号样本以产生眼图。 数字锁相环中的线性相位检测器使用希尔伯特变换将参考信号样本转换为复信号,然后使用具有反正切查找表的CORDIC算法将其转换为相位值的线性斜坡。 然后使用减法器从线性斜坡减去数字锁相环反馈,以向环路滤波器提供输入。