Amplifying solid-state imaging device, method for driving the same and physical quantity distribution sensing semiconductor device

• Main Authors: KURODA TAKAO, MASUYAMA MASAYUKI
• Format: Patent
• Language: English
• Published: 28.09.2004
• Edition: 7
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The output voltage of a pixel is held as a reference signal output voltage in a reference signal holding capacitor connected to a positive input terminal of a second subtractor by lowering the potential of a reset voltage to that of a calibration voltage and by activating a reset pulse and a reference-signal-calibrating pulse. Then, the reference signal output voltage is output from the second subtractor. And a corrected reference signal output voltage, obtained by subtracting the reference signal output voltage from a no signal output voltage, is held in a corrected reference signal holding capacitor. Moreover, a divider divides a corrected original signal output voltage, which is held in a corrected original signal holding capacitor, by the corrected reference signal output voltage, which is held in the corrected reference signal holding capacitor.