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    • 12. 发明申请
    • Method and Apparatus for Removing Narrow Pulses from a Clock Waveform
    • 从时钟波形中去除窄脉冲的方法和装置
    • US20100090739A1
    • 2010-04-15
    • US12252118
    • 2008-10-15
    • Shuo Huang
    • Shuo Huang
    • H03K3/017
    • G06F1/10
    • A method and a device for controlling and removing narrow pulses in a clock waveform using a delay function are disclosed. A circuit device includes three circuits wherein the first circuit is capable of generating an edge trigger signal in response to a waveform of an input signal and a waveform of an output signal. While the second circuit facilitates removing a narrow pulse from the waveform of the input signal, the third circuit is capable of generating a delayed output waveform having pulses greater than a predefined minimal pulse width. In one embodiment, the first, second, and third circuits are an exclusive OR gate, a delay circuit, and a D flip-flop, respectively.
    • 公开了一种使用延迟功能来控制和去除时钟波形中的窄脉冲的方法和装置。 电路装置包括三个电路,其中第一电路能够响应于输入信号的波形和输出信号的波形而产生边沿触发信号。 虽然第二电路有助于从输入信号的波形中去除窄脉冲,但是第三电路能够产生具有大于预定最小脉冲宽度的脉冲的延迟输出波形。 在一个实施例中,第一,第二和第三电路分别是异或门,延迟电路和D触发器。
    • 14. 发明申请
    • Method and Apparatus for GPON GEM Error Correction Implementation
    • 用于GPON GEM纠错实现的方法和装置
    • US20090154916A1
    • 2009-06-18
    • US11955208
    • 2007-12-12
    • Shuo HuangPaul E. O'Connor
    • Shuo HuangPaul E. O'Connor
    • H04B10/00
    • H04J3/1694H03M13/096H03M13/152H03M13/6561H04L9/3236H04L2209/34
    • A method and a device of enhancing data integrity using hash function for data transmission over an optical network are disclosed. The device includes a hash circuit, a lookup circuit, a vector circuit, and a correcting circuit. The hash circuit is capable of performing a hash function and configured to generate a hash value in response to a value of header error correction (“HEC”) encapsulated in a gigabit passive optical network (“GPON”) frame. The lookup circuit is capable of obtaining a data entry from a lookup table in a memory in accordance with the hash value. While the vector circuit generates an error vector in response to the data entry, the correcting circuit corrects an error or errors in the header portion of a data structure encapsulated in the GPON frame.
    • 公开了一种使用散列函数增强数据完整性的方法和装置,用于通过光网络进行数据传输。 该装置包括散列电路,查找电路,矢量电路和校正电路。 哈希电路能够执行散列函数并且被配置为响应于封装在千兆无源光网络(“GPON”)帧中的报头错误校正(“HEC”)的值而产生散列值。 查找电路能够根据哈希值从存储器中的查找表获得数据条目。 当向量电路响应于数据输入产生误差向量时,校正电路校正封装在GPON帧中的数据结构的报头部分中的错误或错误。