CLOCK GENERATING DEVICE AND METHOD THEREOF
    31.
    发明申请
    CLOCK GENERATING DEVICE AND METHOD THEREOF 有权
    时钟产生装置及其方法

    公开(公告)号:US20100034330A1

    公开(公告)日:2010-02-11

    申请号:US12189204

    申请日:2008-08-11

    Abstract: A clock generating device includes: a frequency divider having an input node coupled to a transmission interface for generating a reference clock signal according to an input data received from the transmission interface; and a clock/data recovery circuit having a data input node coupled to the transmission interface and a reference clock input node coupled to an output node of the frequency divider, for generating an output clock signal according to one of the input data received at the data input node and the reference clock signal received at the reference clock input node.

    Abstract translation: 时钟产生装置包括:分频器,具有耦合到传输接口的输入节点,用于根据从传输接口接收的输入数据产生参考时钟信号; 以及具有耦合到所述传输接口的数据输入节点和耦合到所述分频器的输出节点的参考时钟输入节点的时钟/数据恢复电路,用于根据在所述数据处接收到的所述输入数据之一产生输出时钟信号 输入节点和参考时钟输入节点接收的参考时钟信号。

    DEVICE FOR JITTER MEASUREMENT AND METHOD THEREOF
    32.
    发明申请
    DEVICE FOR JITTER MEASUREMENT AND METHOD THEREOF 有权
    用于抖动测量的设备及其方法

    公开(公告)号:US20090112499A1

    公开(公告)日:2009-04-30

    申请号:US12117176

    申请日:2008-05-08

    CPC classification number: G01R31/31709

    Abstract: The device for jitter measurement and a method thereof are provided. The device for jitter measure includes a signal retrieving module, a signal amplifying module, an edge detecting module, and a time-to-digital converting module. The signal retrieving module receives a signal-under-test, and retrieves a first pulse signal having a pulse width equal to a period of the signal-under-test. The signal amplifying module amplifies the pulse width of the first pulse signal and thereby generates a second pulse signal. The edge detecting module detects a rising edge and a falling edge of the second pulse signal, and generates a first indication signal and a second indication signal according to the respective detected results. The time-to-digital converting module converts the pulse width of the second pulse signal existed in time domain to a digital signal according to the first indication signal and the second indication signal.

    Abstract translation: 提供抖动测量装置及其方法。 用于抖动测量的装置包括信号检索模块,信号放大模块,边缘检测模块和时间 - 数字转换模块。 信号检索模块接收待测信号,并检索具有等于被测信号的周期的脉冲宽度的第一脉冲信号。 信号放大模块放大第一脉冲信号的脉冲宽度,从而产生第二脉冲信号。 边缘检测模块检测第二脉冲信号的上升沿和下降沿,并根据各个检测结果生成第一指示信号和第二指示信号。 时间 - 数字转换模块根据第一指示信号和第二指示信号将时域中存在的第二脉冲信号的脉冲宽度转换为数字信号。

    Mixed-voltage I/O buffer
    34.
    发明授权
    Mixed-voltage I/O buffer 有权
    混合电压I / O缓冲器

    公开(公告)号:US07986171B2

    公开(公告)日:2011-07-26

    申请号:US12289132

    申请日:2008-10-21

    CPC classification number: H03K19/0013 H03K3/356113 H03K19/018521

    Abstract: A mixed-voltage input/output (I/O) buffer includes an output buffer circuit. The output buffer circuit includes an output stage circuit, a gate-tracking circuit and a floating N-well circuit. The output stage circuit includes stacked pull-up P-type transistors and stacked pull-down N-type transistors, in which a first P-type transistor of the stacked pull-up P-type transistors and a first N-type transistor of the stacked pull-down N-type transistors are coupled to an I/O pad. The gate-tracking circuit controls gate voltage of the first P-type transistor in accordance with a voltage of the I/O pad to prevent leakage current. The floating N-well circuit provides N-well voltages for an N-well of the first P-type transistor and an N-well of a second P-type transistor, controlling gate voltage of the first P-type transistor, of the gate-tracking circuit to prevent leakage current.

    Abstract translation: 混合电压输入/输出(I / O)缓冲器包括输出缓冲电路。 输出缓冲电路包括输出级电路,栅极跟踪电路和浮动N阱电路。 输出级电路包括堆叠上拉P型晶体管和堆叠式下拉式N型晶体管,其中堆叠上拉P型晶体管的第一P型晶体管和第一N型晶体管 堆叠的下拉式N型晶体管耦合到I / O焊盘。 栅极跟踪电路根据I / O焊盘的电压来控制第一P型晶体管的栅极电压,以防止漏电流。 浮动N阱电路为第一P型晶体管的N阱和第二P型晶体管的N阱提供N阱电压,控制栅极的第一P型晶体管的栅极电压 跟踪电路,以防止漏电流。

    I/O BUFFER CIRCUIT
    35.
    发明申请
    I/O BUFFER CIRCUIT 有权
    I / O缓冲电路

    公开(公告)号:US20090108870A1

    公开(公告)日:2009-04-30

    申请号:US12193299

    申请日:2008-08-18

    CPC classification number: H03K19/018521 H03K19/018528

    Abstract: An output buffer circuit is provided. The output buffer circuit receives a control signal (OE) and a data signal (Dout) from a first core circuit (10) and operates in a transmitting mode according to the control signal. The output buffer circuit converts the data signal into an output signal at a first voltage level or a ground voltage level according to the data signal logic level and a supply voltage (VDDIO). The supply voltage is adjusted to pull up or pull down the first voltage level of the output signal.

    Abstract translation: 提供输出缓冲电路。 输出缓冲电路从第一核心电路(10)接收控制信号(OE)和数据信号(Dout),并根据控制信号在发送模式下工作。 输出缓冲电路根据数据信号逻辑电平和电源电压(VDDIO)将数据信号转换成第一电压电平或接地电压电平的输出信号。 电源电压被调整为上拉或下拉输出信号的第一电压电平。

    Comparator with low offset voltage
    36.
    发明授权
    Comparator with low offset voltage 有权
    具有低失调电压的比较器

    公开(公告)号:US07501862B2

    公开(公告)日:2009-03-10

    申请号:US11767283

    申请日:2007-06-22

    CPC classification number: H03K3/356113 H03K3/356121

    Abstract: A differential comparator is provided. The comparator receiving two differential signals and generating a comparison result represented by an output signal on one of two output terminals respectively on two current paths. The comparator comprises two pairs of latch transistors respectively disposed on the two current paths and two pairs of input transistors respectively disposed on the two current paths, wherein gates of the latch transistors on one of the current paths are commonly coupled to the output terminal between the latch transistors on the other current path, gates of the input transistors on one of the current paths respectively receives an input signal of one of the differential signals and a reference signal of the other differential signal and each of the input transistors is disposed between the output terminal and one of the latch transistors on the current path thereof.

    Abstract translation: 提供差分比较器。 比较器接收两个差分信号,并且分别在两个电流路径上的两个输出端子之一上产生由输出信号表示的比较结果。 比较器包括分别设置在两个电流路径上的两对锁存晶体管和分别设置在两个电流路径上的两对输入晶体管,其中一条电​​流路径上的锁存晶体管的栅极共同耦合到输出端之间 在另一电流路径上的锁存晶体管,其中一条电​​流路径上的输入晶体管的栅极分别接收差分信号之一的输入信号和另一个差分信号的参考信号,并且每个输入晶体管设置在输出 端子和其电流路径上的锁存晶体管中的一个。

    Common voltage adjustment apparatus
    37.
    发明申请
    Common voltage adjustment apparatus 审中-公开
    普通电压调节装置

    公开(公告)号:US20080151135A1

    公开(公告)日:2008-06-26

    申请号:US11905564

    申请日:2007-10-02

    CPC classification number: G11C17/18 G09G3/3655 G09G2320/0693

    Abstract: A common voltage adjustment apparatus for adjusting a common voltage of a liquid crystal display (LCD) panel includes a data-read-write circuit and an output circuit. The data-read-write circuit includes a one-time-programmable (OTP) memory module and a control interface unit. The OTP memory module includes several OTP memories. The control interface unit outputs common-voltage-setting data according to a control signal and selectively stores the common-voltage-setting data into an unwritten OTP memory in the OTP memory module. The output circuit includes a reference-voltage generator and a digital-to-analog converter (DAC). The reference-voltage generator generates a reference voltage. The DAC converts the common-voltage-setting data into an output voltage according to the reference voltage.

    Abstract translation: 用于调节液晶显示​​器(LCD)面板的公共电压的公共电压调节装置包括数据读写电路和输出电路。 数据读写电路包括一次可编程(OTP)存储器模块和控制接口单元。 OTP存储器模块包括几个OTP存储器。 控制接口单元根据控制信号输出公共电压设定数据,并选择性地将公共电压设定数据存储在OTP存储器模块中的未写入的OTP存储器中。 输出电路包括参考电压发生器和数模转换器(DAC)。 参考电压发生器产生参考电压。 DAC根据参考电压将公共电压设置数据转换为输出电压。

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