Patent ID: 9681074
Date: 2017-06-13
CPC Classifications: G01T,H04N

Claim:
1. A pixel circuit comprising a photoelectric converter unit, an amplifier unit, a reset unit, a compensation unit, a charging unit, and a readout unit, wherein the photoelectric converter unit is connected to a first voltage terminal and the amplifier unit, and is configured to convert an optical signal into an electric signal, wherein the amplifier unit is connected to the photoelectric converter unit, the charging unit, and the readout unit, and is configured to amplify an output signal from the photoelectric converter unit, wherein the reset unit is connected to a reset terminal, the first voltage terminal, and the amplifier unit, and is configured to reset the amplifier unit based on an input signal from the reset terminal and an input signal from the first voltage terminal, wherein the charging unit is connected to a first control terminal, a second voltage terminal, and the amplifier unit, and is configured to control a voltage at an end of the amplifier unit based on an input signal from the first control terminal and an input signal from the second voltage terminal, wherein the compensation unit is connected to a second control terminal, the reset unit, and the amplifier unit, and is configured to control a voltage at another end of the amplifier unit based on an input signal from the second control terminal, and wherein the readout unit is connected to a third control terminal and the amplifier unit, and is configured to control an output signal based on an input signal from the third control terminal.