Patent ID: 8059178
Filing Date: 2011-11-15
Classification: H04N

Abstract:
1. In a complementary metal oxide semiconductor (CMOS) imager, the CMOS imager comprising: a photodiode (PD) having a cathode to supply a detected voltage, and an anode connected to a first reference voltage; a transistor set having an interface connected to the PD cathode, a reset signal interface, a select signal interface, a read signal interface, and a power interface, the transistor set supplying an output signal representative of the PD detected voltage; a flush reset circuit having no more than two reference voltage interfaces including a second interface to receive a second reference voltage, with a higher potential than the first reference voltage and a first interface connected to the first reference voltage, the flush reset circuit further including a flush signal interface and a third interface connected to the power interface of the transistor set to supply a Vflush wherein the transistor set supplies the Vflush