Successive approximation analog-to-digital converter
    1.
    发明授权
    Successive approximation analog-to-digital converter 有权
    逐次近似模数转换器

    公开(公告)号:US09432046B1

    公开(公告)日:2016-08-30

    申请号:US14855778

    申请日:2015-09-16

    CPC classification number: H03M1/468 H03M1/1245 H03M1/38 H03M1/403

    Abstract: A successive approximation analog-to-digital converter includes a first capacitance bank, a second capacitance bank, a bridge capacitor, a switch set, a comparator and a successive approximation register logic circuit. The first capacitance bank is connected with a first node. The second capacitance bank is connected with a second node. The bridge capacitor is connected between the first node and the second node. Two first input terminals of the comparator are connected with the first node and the intermediate level, respectively. An output terminal of the comparator generates a comparing signal. The successive approximation register logic circuit receives the comparing signal, and generates the switching signal and a digital data signal. The switch set selectively provides one of a low reference level, a high reference level, an input level and an intermediate level to the first capacitance bank and the second capacitance bank.

    Abstract translation: 逐次逼近模数转换器包括第一电容组,第二电容组,桥式电容器,开关组,比较器和逐次逼近寄存器逻辑电路。 第一电容组与第一节点连接。 第二电容组与第二节点连接。 桥式电容器连接在第一节点和第二节点之间。 比较器的两个第一输入端分别与第一节点和中间电平连接。 比较器的输出端产生比较信号。 逐次逼近寄存器逻辑电路接收比较信号,并产生切换信号和数字数据信号。 开关组选择性地将第一电容组和第二电容组提供低参考电平,高参考电平,输入电平和中间电平中的一个。

    Analog to digital converting apparatus and initial method thereof
    2.
    发明授权
    Analog to digital converting apparatus and initial method thereof 有权
    模数转换装置及其初始方法

    公开(公告)号:US09276596B1

    公开(公告)日:2016-03-01

    申请号:US14726625

    申请日:2015-06-01

    CPC classification number: H03M1/002 H03M1/1295 H03M1/468

    Abstract: An analog to digital converting apparatus and an initial method thereof are provided. The analog to digital converting apparatus includes a first and a second switching capacitor units, a circuit unit, a first and a second initialization switches, a third and a fourth capacitors and a logic buffer. The first and the second switching capacitor units respectively couple first capacitors and second capacitors to a first logic voltage, a second logic voltage or a first or a second input voltage according to a first control signal, and respectively generate a first and a second voltage. The circuit unit compares the first voltage and the second voltage to generate the first control signal. The first and the second initialization switches are respectively connected in series between the first and the second voltage and a common-mode endpoint. The logic buffer outputs the first or the second logic voltage to the common-mode endpoint.

    Abstract translation: 提供了一种模数转换装置及其初始方法。 模数转换装置包括第一和第二开关电容器单元,电路单元,第一和第二初始化开关,第三和第四电容器和逻辑缓冲器。 第一和第二开关电容器单元根据第一控制信号分别将第一电容器和第二电容器耦合到第一逻辑电压,第二逻辑电压或第一或第二输入电压,并分别产生第一和第二电压。 电路单元比较第一电压和第二电压以产生第一控制信号。 第一和第二初始化开关分别串联连接在第一和第二电压和共模端点之间。 逻辑缓冲器将第一或第二逻辑电压输出到共模端点。

    VIDEO OUTPUT SYSTEM AND LOAD DETECTING METHOD THEREFOR
    3.
    发明申请
    VIDEO OUTPUT SYSTEM AND LOAD DETECTING METHOD THEREFOR 审中-公开
    视频输出系统及其负载检测方法

    公开(公告)号:US20150009197A1

    公开(公告)日:2015-01-08

    申请号:US14150214

    申请日:2014-01-08

    CPC classification number: G09G5/006 G09G5/36 G09G2330/021

    Abstract: A video output system at least includes a first video output terminal, a control circuit, a first digital-to-analog converter, and a first bias voltage generator. The first video output terminal is selectively connected with a first video input terminal of a display device through a signal cable. According to a constant detecting current generated by the first digital-to-analog converter, or the first bias voltage generator, the first video output terminal has a detecting voltage for indicating whether the video output system is connected with the display device. When the video output system is connected with the display device, the control circuit enables the first digital-to-analog converter but disables the first bias voltage generator. When the video output system is not connected with the display device, the control circuit disables the first digital-to-analog converter but enables the first bias voltage generator.

    Abstract translation: 视频输出系统至少包括第一视频输出端子,控制电路,第一数模转换器和第一偏置电压发生器。 第一视频输出端子通过信号电缆与显示装置的第一视频输入端选择性地连接。 根据由第一数模转换器或第一偏置电压发生器产生的恒定检测电流,第一视频输出端子具有用于指示视频输出系统是否与显示装置连接的检测电压。 当视频输出系统与显示装置连接时,控制电路使第一个数模转换器能够使第一偏置电压发生器失效。 当视频输出系统未与显示设备连接时,控制电路禁用第一个数模转换器,但使能第一偏置电压发生器。

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