Patent ID: 8334492
Filing Date: 2012-12-18
Classification: H04N

Abstract:
1. A solid-state imaging device comprising: a pixel array unit in which unit pixels are arranged in a matrix form; a vertical scan unit that reads out analog pixel signals from the respective unit pixels of the pixel array unit; an AD conversion unit provided with respect to each column for converting the analog pixel signals read out from the respective unit pixels of the pixel array unit into digital data; a data memory unit having a data holding circuit that holds the digital data converted by the AD conversion unit at a downstream of the AD conversion unit of each column; a transfer driving unit that drives a signal line for data transfer based on data of the data holding circuit; a signal amplification unit that receives the data of the data holding circuit transmitted via the signal line and performs signal amplification; a potential fixing unit that fixes an input terminal and/or internal wiring of the signal amplification unit connected to the signal line to a predetermined potential; a drive power supply unit that on/off-controls power supply to the signal amplification unit; a scan unit that controls the transfer driving unit to transfer the data via the signal line to the signal amplification unit; and a drive control unit that controls entire operation, wherein the drive control unit controls the drive power supply unit to turn off the power supply to the signal amplification unit, and controls the potential fixing unit to fix the input terminal and/or the internal wiring of the signal amplification unit to the predetermined potential in a period of standby state in which the data is not transferred via the signal line to the signal amplification unit.