公开(公告)号：US20240155266A1

公开(公告)日：2024-05-09

申请号：US18411402

申请日：2024-01-12

Applicant: OLYMPUS MEDICAL SYSTEMS CORP.

Inventor： Yoshio Hagihara

IPC: H04N25/77 ,  H04N23/50 ,  H04N23/65

CPC classification number: H04N25/77 ,  H04N23/555 ,  H04N23/65

Abstract: An imaging device includes a pixel and a voltage generation circuit. The pixel is configured to operate based on a power source voltage and a reference voltage that is lower than the power source voltage and is higher than or equal to a ground voltage. The voltage generation circuit is configured to generate a predetermined positive voltage that is higher than the reference voltage and is lower than the power source voltage. A transfer transistor of the pixel is formed on a well. The predetermined positive voltage is applied to the well. The transfer transistor is configured to operate based on the power source voltage and the reference voltage.

公开(公告)号：US20230353141A1

公开(公告)日：2023-11-02

申请号：US18140308

申请日：2023-04-27

Applicant: OLYMPUS MEDICAL SYSTEMS CORP.

Inventor： Yoshio Hagihara

IPC: H03K17/687 ,  H03K17/06 ,  H03K17/16

CPC classification number: H03K17/6872 ,  H03K17/063 ,  H03K17/162

Abstract: A voltage generation circuit includes a booster circuit, a control buffer circuit, and a driving buffer circuit. The booster circuit includes a capacitance element and a transistor. The booster circuit generates a higher first voltage than the power source voltage, and the control buffer circuit controls the transistor by using a third voltage that is lower than the first voltage and is higher than a ground voltage. Alternatively, the booster circuit generates a lower second voltage than the ground voltage, and the control buffer circuit controls the transistor by using a fourth voltage that is higher than the second voltage and is lower than or equal to the ground voltage.