Patent ID: 11962926
Assignee: ALPSENTEK, GMBH.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A method for reconfiguring an image sensor comprising a plurality of pixel circuits, the method comprising:
providing a photodiode connected between ground and a floating diffusion (FD) node,
providing a reset transistor (MRST) connected between a first voltage supply and the floating diffusion (FD) node,
providing a source follower transistor (MSF), wherein a drain of the source follower transistor (MSF) is connected to a second voltage supply, a gate of the source follower transistor (MSF) is connected to the floating diffusion (FD) node and a source of the source follower transistor (MSF) is connected to a row select transistor (MSEL), and
connecting the row select transistor (MSEL) between the source of the source follower transistor (MSF) and a common column output,
outputting an output signal corresponding to a light incident on the photodiode;
providing each pixel circuit with an output selection transistor,
configuring each pixel circuit using a corresponding one of the output selection transistors to selectively output a linear integration signal or a logarithmic signal;
connecting a first additional transistor (MVB) between the second voltage supply and the drain of the source follower transistor (MSF), and
providing a second additional transistor (MS2) configured to connect a drain of the first additional transistor (MVB) to a drain of the reset transistor (MRST), and
providing a third additional transistor (MS3) configured to connect the reset transistor (MRST) to the first voltage supply, and
providing a fourth additional transistor (MS4) configured to connect the drain of the reset transistor (MRST) to a gate of the reset transistor (MRST).