公开(公告)号：US20250097607A1

公开(公告)日：2025-03-20

申请号：US18970894

申请日：2024-12-05

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tomas Geurts ,  Amit Mittra ,  Kevin Johnson

IPC: H04N25/78

Abstract: Multiple read image sensors, and associated methods for the same, are disclosed herein. In one embodiment, a method comprises reading out a reset level from a pixel to a corresponding sample and hold circuit; storing the reset level to a first storage device and to a second storage device of the sample and hold circuit; reading out a signal level from the pixel to the sample and hold circuit; and storing the signal level to a third storage device and to a fourth storage device of the sample and hold circuit. The reset level and the signal level can correspond to a same correlated double sampling of an image data signal captured by the pixel. The method can further include reading out the reset level from the first storage device; reading out the signal level from the third storage device; and recovering a first copy of the image data signal.

公开(公告)号：US12200390B2

公开(公告)日：2025-01-14

申请号：US18364416

申请日：2023-08-02

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tomas Geurts ,  Amit Mittra ,  Kevin Johnson

IPC: H04N25/78 ,  H04N25/59 ,  H04N25/616 ,  H04N25/771 ,  H04N25/79

Abstract: Multiple read image sensors, and associated methods for the same, are disclosed herein. In one embodiment, a method comprises reading out a reset level from a pixel to a corresponding sample and hold circuit; storing the reset level to a first storage device and to a second storage device of the sample and hold circuit; reading out a signal level from the pixel to the sample and hold circuit; and storing the signal level to a third storage device and to a fourth storage device of the sample and hold circuit. The reset level and the signal level can correspond to a same correlated double sampling of an image data signal captured by the pixel. The method can further include reading out the reset level from the first storage device; reading out the signal level from the third storage device; and recovering a first copy of the image data signal.

公开(公告)号：US20240292131A1

公开(公告)日：2024-08-29

申请号：US18364416

申请日：2023-08-02

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Tomas Geurts ,  Amit Mittra ,  Kevin Johnson

IPC: H04N25/78

CPC classification number: H04N25/78

Abstract: Multiple read image sensors, and associated methods for the same, are disclosed herein. In one embodiment, a method comprises reading out a reset level from a pixel to a corresponding sample and hold circuit; storing the reset level to a first storage device and to a second storage device of the sample and hold circuit; reading out a signal level from the pixel to the sample and hold circuit; and storing the signal level to a third storage device and to a fourth storage device of the sample and hold circuit. The reset level and the signal level can correspond to a same correlated double sampling of an image data signal captured by the pixel. The method can further include reading out the reset level from the first storage device; reading out the signal level from the third storage device; and recovering a first copy of the image data signal.

公开(公告)号：US20240314460A1

公开(公告)日：2024-09-19

申请号：US18393135

申请日：2023-12-21

Applicant: OMNIVISION TECHNOLOGIES, INC.

Inventor： Amit Mittra ,  Kevin Johnson ,  Hiroaki Ebihara ,  Kenny Geng

IPC: H04N25/46 ,  H04N25/77 ,  H04N25/78

CPC classification number: H04N25/46 ,  H04N25/77 ,  H04N25/78

Abstract: A pixel includes a photosensor configured to photogenerate charge in response to incident light. A floating diffusion is configured to receive the charge photogenerated by the photosensor. A transfer transistor is coupled between the floating diffusion and the photosensor. A dual floating diffusion (DFD) transistor is coupled to the floating diffusion. A binning node is coupled to the DFD transistor. A floating diffusion interconnect grid is coupled to the binning node of the pixel and a binning node of a second pixel. The pixel and the second pixel are included in a pixel array. The DFD transistor is configured to couple the binning node to the floating diffusion when activated during a readout operation of the pixel array to provide a binned readout, and the DFD transistor is configured not to couple the binning node to the floating diffusion when deactivated to provide a full resolution readout.