| 主权项 |
1. A unit pixel timing control method of an imaging device, comprising the steps of:
causing a reset transistor (RX) to reset a floating diffusion region (FD) when an exposure time of n (where n is a natural number of 2 or greater) photo diodes (PD) of a unit pixel expires; causing a timing generator to supply a first sample and hold pulse (SHR) for outputting a signal corresponding to a reference voltage (Vref) which is a potential of the floating diffusion region; (a) causing a transfer transistor, which is disposed to correspond to one photo diode, to transfer photo-charges accumulated in the photo diode to the floating diffusion region; and (b) causing the timing generator to supply a second sample and hold pulse (SHD) for outputting a signal corresponding to a signal voltage (Vsig) which is a current potential of the floating diffusion region, wherein the steps of (a) and (b) are performed on all of the n photo diodes of the unit pixel, and wherein the floating diffusion region is not reset before the corresponding second sample and hold pulse is supplied to each of the n photo diodes. |
