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    • 1. 发明授权
    • Voltage-time converters and time-domain voltage comparators including the same
    • 电压时间转换器和时域电压比较器包括相同的
    • US08487806B2
    • 2013-07-16
    • US13284822
    • 2011-10-28
    • Seong Hoon ChoiJang Hyun ParkChang Sun KimJihun EoYoung-Chan Jang
    • Seong Hoon ChoiJang Hyun ParkChang Sun KimJihun EoYoung-Chan Jang
    • H03M1/50
    • H03M1/50H03M1/46
    • Provided is a time-domain voltage comparator including a voltage-time converter. The voltage-time converter includes a conversion unit and an output unit. The conversion unit includes a first MOS transistor which shifts a voltage level of the first detection node according to an external first voltage signal, and a second MOS transistor which shifts a voltage level of the second detection node according to an external second voltage signal. The output unit generates first and second output signals in response to voltages of the first and second detection nodes. The output unit determines a shifted time of the first output signal according to a voltage level of the first detection node and determines a shifted time of the second output signal according to a voltage level of the second detection node.
    • 提供了包括电压 - 时间转换器的时域电压比较器。 电压 - 时间转换器包括转换单元和输出单元。 转换单元包括:第一MOS晶体管,其根据外部第一电压信号偏移第一检测节点的电压电平;以及第二MOS晶体管,其根据外部第二电压信号偏移第二检测节点的电压电平。 输出单元响应于第一和第二检测节点的电压产生第一和第二输出信号。 输出单元根据第一检测节点的电压电平确定第一输出信号的移位时间,并根据第二检测节点的电压电平确定第二输出信号的移位时间。
    • 3. 发明申请
    • MEMORY CONTROLLER FOR DETECTING READ LATENCY, MEMORY SYSTEM AND TEST SYSTEM HAVING THE SAME
    • 用于检测读取期望的存储器控​​制器,具有该读取期望的存储器系统和测试系统
    • US20100296352A1
    • 2010-11-25
    • US12781846
    • 2010-05-18
    • Hun-Dae ChoiYoung-Chan Jang
    • Hun-Dae ChoiYoung-Chan Jang
    • G11C7/00G11C8/18G11C29/00
    • G11C29/50G11C29/50012G11C29/56012G11C2207/2272
    • A memory controller includes an I/O circuit, a read latency detector and a clock domain synchronizer. The I/O circuit transmits a first signal to a semiconductor memory device, receives a reflected signal returned from the semiconductor memory device, and delays the reflected signal in response to a delay selection signal to generate a second signal. The reflected signal is provided by reflection of the first signal from the semiconductor memory device. The read latency detector generates the first signal in response to a system clock signal, and generates a read latency signal in response to the system clock signal, a hold signal, and the second signal. The clock domain synchronizer generates the delay selection signal and the hold signal in response to the system clock signal and the second signal.
    • 存储器控制器包括I / O电路,读延迟检测器和时钟域同步器。 I / O电路将第一信号发送到半导体存储器件,接收从半导体存储器件返回的反射信号,并响应于延迟选择信号延迟反射信号以产生第二信号。 反射信号由来自半导体存储器件的第一信号的反射提供。 读延迟检测器响应于系统时钟信号产生第一信号,并且响应于系统时钟信号,保持信号和第二信号而产生读等待时间信号。 时钟域同步器响应于系统时钟信号和第二信号产生延迟选择信号和保持信号。
    • 5. 发明授权
    • Process for controlling the molecular weight distribution of high
1,4-cis polybutadiene
    • 控制高1,4-顺式聚丁二烯分子量分布的方法
    • US6013746A
    • 2000-01-11
    • US93646
    • 1998-06-09
    • Young-Chan JangGwang-Hoon KwagDong-Il YoonA-Ju KimKyung-Nam Lim
    • Young-Chan JangGwang-Hoon KwagDong-Il YoonA-Ju KimKyung-Nam Lim
    • C08F36/06C08F4/609C08F136/06C08F236/06C08F4/80
    • C08F136/06
    • This invention relates to a process for controlling the molecular weight distribution of high 1,4-cis polybutadiene and more particularly, to a process of easily controlling the molecular weight distribution of polybutadiene which is concerned directly with the physical properties such as processability, in such a manner that preparation of high 1,4-cis polybutadiene is made available via polymerization of 1,3-butadiene in the presence of Ziegler-Natta catalyst, adding carboxylic acid represented by following formula I for the controlling of the molecular weight distribution of polybutadiene based on the contents of carboxylic acid, may be easily controlled, without any alternation in the 1,4-cis contents. ##STR1## Wherein R is selected from the group consisting of alkyl, cycloalkyl and arylalkyl groups substituted or unsubstituted with at least one or more halogen atoms, or alkyl, cycloalkyl and arylalkyl groups with at least one or more double bonds containing from 5 to 20 carbon atoms.
    • 本发明涉及一种控制高1,4-顺式聚丁二烯的分子量分布的方法,更具体地说,涉及容易控制聚丁二烯的分子量分布的方法,其直接关系到诸如加工性的物理性质 通过在齐格勒 - 纳塔催化剂存在下,通过1,3-丁二烯的聚合可得到制备高1,4-顺式聚丁二烯的方式,加入由下式I表示的羧酸以控制聚丁二烯的分子量分布 基于羧酸的含量,可以容易地控制,而在1,4-顺式含量中没有任何变化。 其中R选自被至少一个或多个卤素原子取代或未取代的烷基,环烷基和芳基烷基,或具有至少一个或多个含有5至20个碳原子的双键的烷基,环烷基和芳烷基。
    • 6. 发明申请
    • Transceiver for Controlling Swing Width of Output Voltage
    • 用于控制输出电压摆幅宽度的收发器
    • US20110001463A1
    • 2011-01-06
    • US12683322
    • 2010-01-06
    • Young-Chan JangKyoung-su LeeHun-dae Choi
    • Young-Chan JangKyoung-su LeeHun-dae Choi
    • G05F3/08
    • H04L25/0264
    • A transceiver for controlling a swing width of an output voltage includes a transmitter and a receiver for receiving an output voltage of a transmitter. The transmitter includes a first signal converter that outputs changed data generated by changing a voltage level of data in response to a mode control signal for selecting a test mode or a normal mode, an output voltage control circuit for controlling a voltage level of an output node of the transmitter in response to the changed data, and a first termination circuit for supplying a changed power supply voltage generated by changing a voltage level of a power supply voltage of the output node of the transmitter, or is turned off, in response to a test mode enable signal or the changed data. The receiver includes a second termination circuit that operates as a resistor having a resistance value that varies in response to the test mode enable signal or a test mode disable signal.
    • 用于控制输出电压的摆幅的收发器包括用于接收发射器的输出电压的发射器和接收器。 发射机包括:第一信号转换器,其响应于用于选择测试模式或正常模式的模式控制信号,输出通过改变数据的电压电平而产生的改变的数据;输出电压控制电路,用于控制输出节点的电压电平 以及第一终端电路,用于响应于所述发射机的输出节点的电源电压改变或者关闭发送器的输出节点的电源电压而产生的改变的电源电压 测试模式使能信号或更改的数据。 接收机包括第二终端电路,其作为具有响应于测试模式使能信号或测试模式禁止信号而变化的电阻值的电阻器工作。
    • 8. 发明申请
    • Data transceiver system and associated methods
    • 数据收发系统及相关方法
    • US20090207895A1
    • 2009-08-20
    • US12379080
    • 2009-02-12
    • Hwan-Wook ParkYoung-Chan Jang
    • Hwan-Wook ParkYoung-Chan Jang
    • H04B1/38
    • G11C8/18G11C7/1003G11C7/1066G11C7/1093G11C29/022G11C29/023G11C29/028G11C29/1201G11C2207/2254H04L1/004
    • A data transceiver system may include an error corrector. The error corrector may include a plurality of delay units, each delay unit being configured to delay a corresponding data signal among a plurality of data signals by a time in response to a corresponding delay code among a plurality of delay codes and outputting the delayed data signal, an error detector configured to receive the plurality of delay codes, determine whether an error has occurred, and output an error signal according to the determination in a data frame lock operation, and a delay controller configured to set initial values of the plurality of delay codes to a predetermined value, vary and output each of the plurality of delay codes in response to a lock signal, and reset initial values the plurality of delay codes in response to the error signal in the data frame lock operation.
    • 数据收发器系统可以包括错误校正器。 错误校正器可以包括多个延迟单元,每个延迟单元被配置为响应于多个延迟代码之间的对应的延迟代码延迟多个数据信号之间的相应数据信号,并输出延迟的数据信号 ,配置为接收所述多个延迟码的错误检测器,确定是否发生错误,并且根据数据帧锁定操作中的确定输出错误信号;以及延迟控制器,被配置为设置所述多个延迟的初始值 编码到预定值,响应于锁定信号改变并输出多个延迟码中的每一个,并且响应于数据帧锁定操作中的错误信号来复位初始值多个延迟码。