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    • 4. 发明授权
    • Image sensor for high-speed data readout
    • 用于高速数据读出的图像传感器
    • US08159589B2
    • 2012-04-17
    • US12427214
    • 2009-04-21
    • Seung Hyun LimGun Hee HanSeog Heon Ham
    • Seung Hyun LimGun Hee HanSeog Heon Ham
    • H04N5/335
    • H04N5/37455G11C7/16
    • An image sensor for high-speed data readout is provided. The image sensor includes a line memory block temporarily storing a digital signal in unit of lines which is generated based on an analog signal output from a pixel array. The line memory block includes a plurality of line memories, a plurality of data line pairs respectively connecting the line memories to a sense amplifying unit, and a plurality of data line prechargers each including at least two precharge units separately connected with a corresponding one of the data line pairs to precharge the corresponding data line pair with a predetermined precharge voltage. Accordingly, the image sensor performs high-speed digital signal readout based on precharge operation of the data line prechargers.
    • 提供了用于高速数据读出的图像传感器。 该图像传感器包括一个行存储块,其临时存储基于从像素阵列输出的模拟信号产生的行单位的数字信号。 行存储块包括多个行存储器,分别将行存储器连接到读出放大单元的多个数据线对,以及多个数据线预充电器,每个数据线预充电器包括分别与相应的一个 数据线对以预定的预充电电压对相应的数据线对进行预充电。 因此,图像传感器基于数据线预充电器的预充电操作来执行高速数字信号读出。