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    • 1. 发明授权
    • Semiconductor device and method for operating the same
    • 半导体装置及其操作方法
    • US08258843B2
    • 2012-09-04
    • US12645970
    • 2009-12-23
    • Hoon ChoiKwang-Jin Na
    • Hoon ChoiKwang-Jin Na
    • H03K3/16H03K3/30
    • G11C11/4076G11C7/1072G11C7/222
    • A semiconductor device includes a clock delay section configured to receive an external clock signal, reflect different delay amounts on the external clock signal, and generate a plurality of synchronization clock signals, a clock synchronization section configured to synchronize a clock enable signal with each of the plurality of synchronization clock signals in an order beginning with a synchronization clock signal, on which a largest delay amount is reflected, to a synchronization clock signal, on which a smallest delay amount is reflected, and to generate a synchronized clock enable signal, and an internal clock generation section configured to generate an internal clock signal corresponding to the external clock signal, and to be on/off controlled in its operation in response to the synchronized clock enable signal.
    • 半导体器件包括:时钟延迟部,被配置为接收外部时钟信号,反映外部时钟信号的不同延迟量,并产生多个同步时钟信号;时钟同步部,被配置为使时钟使能信号与 多个同步时钟信号以从反射最大延迟量的同步时钟信号开始,反射到最小延迟量的同步时钟信号,并产生同步时钟使能信号,并且 内部时钟生成部,被配置为生成与外部时钟信号对应的内部时钟信号,并且响应于同步的时钟使能信号而在其操作中进行开/关控制。
    • 6. 发明授权
    • Output timing control circuit and semiconductor apparatus using the same
    • 输出定时控制电路及使用其的半导体装置
    • US08959378B2
    • 2015-02-17
    • US13219657
    • 2011-08-27
    • Hoon Choi
    • Hoon Choi
    • G06F1/00H03K5/13
    • H03K5/131
    • An output timing control circuit of a semiconductor apparatus includes a delay amount counter block configured to count a delay amount of an output reset pulse signal based on an external clock signal and output a first counting code, wherein the delay amount counter block is configured to control the delay amount of the output reset pulse signal depending upon a frequency of the external clock signal; an operation block configured to subtract a code value of the first counting code from a code value of a data output delay code, and output a delay control code; and a phase control block configured to control a phase of a read command signal by the number of clocks of a DLL clock signal corresponding to a code value of the delay control code, and output an output enable flag signal.
    • 半导体装置的输出定时控制电路包括:延迟量计数器块,被配置为基于外部时钟信号对输出复位脉冲信号的延迟量进行计数,并输出第一计数代码,其中延迟量计数器块被配置为控制 输出复位脉冲信号的延迟量取决于外部时钟信号的频率; 操作块,被配置为从数据输出延迟码的代码值中减去第一计数代码的代码值,并输出延迟控制代码; 以及相位控制块,被配置为通过与延迟控制代码的代码值相对应的DLL时钟信号的时钟数来控制读取命令信号的相位,并输出输出使能标志信号。
    • 9. 发明授权
    • Adjustment of clock signals regenerated from a data stream
    • 调整从数据流重新生成的时钟信号
    • US08611486B2
    • 2013-12-17
    • US13083399
    • 2011-04-08
    • Hoon ChoiDaekyeung KimJu Hwan YiYoung Don Bae
    • Hoon ChoiDaekyeung KimJu Hwan YiYoung Don Bae
    • H04L7/00
    • H04L7/0008G09G5/008G09G2370/10
    • Embodiments of the invention are generally directed to adjustment of clock signals regenerated from a data stream. An embodiment of a method includes receiving a data stream from a transmitting device via a communication link, the data stream including stream data, a link clock signal, and timestamps to indicate a relationship between the link clock signal and a stream clock signal. The method further includes adjusting the stream clock based at least in part on one or more measurements related to the data stream, the one or more measurements including a count of a number of pulses of the stream clock during a period of time, or a measurement of a number of data elements from the data stream stored in a buffer at a certain point in time.
    • 本发明的实施例一般涉及从数据流再生的时钟信号的调整。 方法的实施例包括经由通信链路从发送设备接收数据流,数据流包括流数据,链路时钟信号和时间戳,以指示链路时钟信号和流时钟信号之间的关系。 该方法还包括至少部分地基于与数据流相关的一个或多个测量来调整流时钟,所述一个或多个测量包括在一段时间内的流时钟的脉冲数的计数,或测量 从存储在缓冲器中的某个时间点的数据流中的多个数据元素。
    • 10. 发明授权
    • Fibrous composite for tissue engineering
    • 组织工程纤维复合材料
    • US08580291B2
    • 2013-11-12
    • US10507059
    • 2003-03-14
    • Hoon ChoiI. Wei Chen
    • Hoon ChoiI. Wei Chen
    • A61K9/70A61F2/00
    • A61L27/56A61L27/025A61L27/18A61L27/446A61L27/58C08L67/04
    • Provided are fibrous composites prepared by methods of the present invention, comprising oxides and biodegradable polymers, in which the fibers are made of aerogel-like oxide materials having nanometer-sized pores. The fibrous composition advantageously has, at least, the following characteristics: (i) a very high nanoporous surface area, which also permits nucleation of crystallites; (ii) mesoporous/macroporous interspacial networks between the fibers, providing high bioactivity and a high transport rate; (iii) macropores for natural bone-like tissue growth; (iv) good mechanical properties for handling and for implant support; and (v) biodegradability for implant dissolution and time-variable mechanical properties. Further provided are methods for using the bioactive biodegradable fibrous composites as osteogenic composite materials for tissue engineering, tissue re-growth, bone implants, and bone repair, and/or for the delivery of drugs or therapeutic compounds.
    • 提供了通过本发明的方法制备的纤维复合材料,其包括氧化物和可生物降解的聚合物,其中纤维由具有纳米尺寸孔的气凝胶状氧化物材料制成。 纤维组合物有利地至少具有以下特征:(i)非常高的纳米孔表面积,其也允许微晶成核; (ii)纤维间的介孔/大孔间隙网络,提供高生物活性和高传输速率; (iii)天然骨样组织生长的大孔; (iv)用于处理和植入支持的良好的机械性能; 和(v)植入物溶解和时变机械性能的生物降解性。 还提供了使用生物活性生物可降解纤维复合材料作为用于组织工程,组织再生长,骨植入物和骨修复,和/或递送药物或治疗化合物的成骨复合材料的方法。