METHODS AND SYSTEMS FOR CALIBRATING A PIPELINED ANALOG-TO-DIGITAL CONVERTER
    1.
    发明申请
    METHODS AND SYSTEMS FOR CALIBRATING A PIPELINED ANALOG-TO-DIGITAL CONVERTER 审中-公开
    用于校准管道模拟数字转换器的方法和系统

    公开(公告)号:WO2008119007A1

    公开(公告)日:2008-10-02

    申请号:PCT/US2008/058391

    申请日:2008-03-27

    CPC classification number: H03M1/1038 H03M1/1061 H03M1/168

    Abstract: A pipelined analog-to-digital converter (100) includes a plurality of stages (101), each stage (101) comprising an analog-to-digital converter (ADC) (104, 405, 504, 502) and a digital-to-analog converter (DAC) (105, 123, 402, 505). A method for increasing the accuracy of the pipelined ADC (100) includes calibrating the ADC (104, 405, 504, 502) in each stage of the analog-to-digital converter (100) by adjusting trip points of that ADC (104, 405, 504, 502). Another method for increasing the accuracy of a pipelined ADC (100) includes measuring error in an output of each the DAC (105, 123, 402, 505); and correcting an output of the pipelined analog-to-digital converter (100) for the measured error. These methods can be used together to further increase the accuracy of the pipelined ADC (100). Consequently, a pipelined analog-to-digital converter (100) may include a look-up table (506) containing data for correcting errors in output of each of the DACs (105, 123, 402, 505), where trip points of the ADCs (104, 405, 504, 502) the ADCs (104, 405, 504, 502) in the stages (101) of the pipelined converter (100) have been calibrated to expected values.

    Abstract translation: 流水线模数转换器(100)包括多个级(101),每级(101)包括模数转换器(ADC)(104,405,504,502)和数字到数字转换器 - 数据转换器(DAC)(105,123,402,505)。 一种用于提高流水线ADC(100)的精度的方法包括通过调整该ADC的跳变点来校准模数转换器(100)的每个级中的ADC(104,405,504,502) 405,504,502)。 提高流水线ADC(100)的精度的另一种方法包括测量每个DAC(105,123,402,505)的输出中的误差。 以及校正所测量的误差的流水线模数转换器(100)的输出。 这些方法可以一起使用以进一步提高流水线ADC(100)的精度。 因此,流水线模数转换器(100)可以包括查找表(506),其包含用于校正每个DAC(105,123,402,505)的输出中的错误的数据,其中, 流水线转换器(100)的级(101)中的ADC(104,405,504,502)的ADC(104,405,504,502)已被校准为期望值。

    SENSING LIGHT AND SENSING THE STATE OF A MEMORY CELL
    2.
    发明申请
    SENSING LIGHT AND SENSING THE STATE OF A MEMORY CELL 审中-公开
    感知光和感知记忆细胞的状态

    公开(公告)号:WO2007134062A2

    公开(公告)日:2007-11-22

    申请号:PCT/US2007/068484

    申请日:2007-05-08

    Abstract: A light-to-frequency converter includes a switch (130) connected in series with a reverse-biased photodiode (120). A node (150) in the current path through the switch and the photodiode is connected to the input of a Schmidt trigger (160), whose output controls the switch. New techniques are provided for motion compensation, partial readouts, dark current elimination, non-destructive testing, and sensing the state of a memory cell.

    Abstract translation: 光频变换器包括与反向偏置光电二极管(120)串联连接的开关(130)。 通过开关和光电二极管的电流路径中的节点(150)连接到施密特触发器(160)的输入端,其输出控制开关。 提供了新的技术用于运动补偿,部分读数,暗电流消除,非破坏性测试以及感测存储单元的状态。

    SENSING LIGHT AND SENSING THE STATE OF A MEMORY CELL
    3.
    发明申请
    SENSING LIGHT AND SENSING THE STATE OF A MEMORY CELL 审中-公开
    感知光和感知记忆细胞的状态

    公开(公告)号:WO2007134062A3

    公开(公告)日:2008-07-17

    申请号:PCT/US2007068484

    申请日:2007-05-08

    Abstract: A light-to-frequency converter includes a switch (130) connected in series with a reverse-biased photodiode (120). A node (150) in the current path through the switch and the photodiode is connected to the input of a Schmidt trigger (160), whose output controls the switch. New techniques are provided for motion compensation, partial readouts, dark current elimination, non-destructive testing, and sensing the state of a memory cell.

    Abstract translation: 光频变换器包括与反向偏置光电二极管(120)串联连接的开关(130)。 通过开关和光电二极管的电流路径中的节点(150)连接到施密特触发器(160)的输入端,其输出控制开关。 提供了新的技术用于运动补偿,部分读数,暗电流消除,非破坏性测试以及感测存储单元的状态。

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