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    • 8. 发明授权
    • Synchronized clock generating apparatus
    • 同步时钟发生装置
    • US5491438A
    • 1996-02-13
    • US289837
    • 1994-08-12
    • Yukio MiyazakiTakenori OkitakaMakoto HatakenakaJunji Mano
    • Yukio MiyazakiTakenori OkitakaMakoto HatakenakaJunji Mano
    • G06F1/10H03K5/00H03K5/13H04L7/033H03L7/00
    • H04L7/0338G06F1/10H03K5/133H03K2005/00234
    • A synchronized clock generating apparatus includes a delayed clock generating circuit including a plurality of serially connected delaying elements for generating delayed clock signals delayed successively relative to an incoming basic clock signal. Storage means includes a plurality of storage elements storing therein a predetermined level in response to transitions occurring in associated ones of said basic and delayed clock signals after a trigger signal which is asynchronous with the basic clock signal is applied thereto. A clock selection logic circuit is controlled by the output signal of the storage means for detecting the clock signal transition occurring closest in time to the application of the asynchronous trigger signal, and for selecting a desired one of said clock signals, based on the result of the detection, as a synchronized clock signal output.
    • 同步时钟发生装置包括延迟时钟产生电路,其包括多个串行连接的延迟元件,用于产生相对于输入的基本时钟信号连续延迟的延迟时钟信号。 存储装置包括多个存储元件,其中,在施加与基本时钟信号异步的触发信号之后,响应于在相关联的所述基本和延迟的时钟信号中发生的转换,存储其中的预定电平。 时钟选择逻辑电路由存储装置的输出信号控制,用于检测在施加异步触发信号时在时间上最近发生的时钟信号转换,并且基于所述时钟信号的结果来选择期望的一个时钟信号 检测,作为同步时钟信号输出。