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READOUT CIRCUIT WITH SHARED ANALOG-TO-DIGITAL CONVERTERS AND RAM MEMORIES, FOR IMAGE SENSOR
READOUT CIRCUIT WITH SHARED ANALOG-TO-DIGITAL CONVERTERS AND RAM MEMORIES, FOR IMAGE SENSOR
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机译:带有共享模拟至数字转换器和RAM存储器的读出电路,用于图像传感器
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摘要
A readout circuit of an imager that enables analog-to-digital converters (ADCs) to be shared between columns of the imager is provided. Groups of ADCs share a single block of memory for storing signals processed by the ADCs. The ADCs process signals received from one group of columns of pixels and, at a different time, the ADCs process signals from another group of columns of pixels. While one of the signals processed from a column is being stored in a first memory bank, signals previously processed and stored in a second memory bank are being readout of the storage locations and provided downstream for further processing.
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