公开(公告)号：US11223779B2

公开(公告)日：2022-01-11

申请号：US16899593

申请日：2020-06-12

Applicant: NOVATEK Microelectronics Corp.

Inventor： Dong-Hai Huang ,  Chi-Fan Liou ,  Jie-Jung Huang

IPC: H04N5/235

Abstract: An operating method of an image sensing device capable of detecting several light emitting diodes each having a flickering cycle time, the image sensing device includes several pixel circuits, each of the several pixel circuits includes a first sensing circuit and a second sensing circuit, the operating method including the following operations: operating the image sensing device in a first operating mode, including: sensing light by the first sensing circuit with a first exposure time longer than the flickering cycle time, thereby obtaining a first sensing result; sensing light, simultaneously by the first sensing circuit and the second sensing circuit with a second exposure time shorter than the flickering cycle time, thereby obtaining a second sensing result and a third sensing result; determining whether there is LED (light emitting diode) flickering or not according to the first sensing result, the second sensing result and the third sensing result.

公开(公告)号：US20160233265A1

公开(公告)日：2016-08-11

申请号：US14702767

申请日：2015-05-04

Applicant: NOVATEK Microelectronics Corp.

Inventor： Dong-Hai Huang

IPC: H01L27/146 ,  G01J1/42

CPC classification number: G01J1/4204 ,  H01L27/14609 ,  H01L27/14641 ,  H01L27/14643

Abstract: A light sensing unit for a light sensing circuit of an image sensor includes a first light sensing element, a first floating node and at least one coupling element. The first light sensing element is used for sensing light to obtain a light sensing result and generating a plurality of carriers accordingly. The first floating node is used for receiving and storing the plurality of carriers generated by the first light sensing element. The at least one coupling element is used for coupling the first floating node to at least one second floating node, and transmitting a part of the plurality of carriers stored in the first floating node to the at least one second floating node to be stored in the at least one second floating node.

Abstract translation: 用于图像传感器的光感测电路的光感测单元包括第一光感测元件，第一浮动节点和至少一个耦合元件。 第一感光元件用于感测光以获得光感测结果并相应地生成多个载体。 第一浮动节点用于接收和存储由第一光感测元件产生的多个载波。 所述至少一个耦合元件用于将所述第一浮动节点耦合到至少一个第二浮动节点，以及将存储在所述第一浮动节点中的所述多个载波中的一部分传输到所述至少一个第二浮动节点以被存储在所述第一浮动节点中 至少一个第二浮动节点。

公开(公告)号：US10090354B2

公开(公告)日：2018-10-02

申请号：US14702767

申请日：2015-05-04

Applicant: NOVATEK Microelectronics Corp.

Inventor： Dong-Hai Huang

IPC: H01L27/146 ,  G01J1/42

Abstract: A light sensing unit for a light sensing circuit of an image sensor includes a first light sensing element, a first floating node and at least one coupling element. The first light sensing element is used for sensing light to obtain a light sensing result and generating a plurality of carriers accordingly. The first floating node is used for receiving and storing the plurality of carriers generated by the first light sensing element. The at least one coupling element is used for coupling the first floating node to at least one second floating node, and transmitting a part of the plurality of carriers stored in the first floating node to the at least one second floating node to be stored in the at least one second floating node.

公开(公告)号：US11657643B1

公开(公告)日：2023-05-23

申请号：US17701690

申请日：2022-03-23

Applicant: Novatek Microelectronics Corp.

Inventor： Shu-Fang Wang ,  Dong-Hai Huang

IPC: G06V40/13 ,  G06F3/041 ,  G06F3/042 ,  G06F21/32

CPC classification number: G06V40/1318 ,  G06F3/042 ,  G06F3/0412 ,  G06F21/32

Abstract: A fingerprint sensing device including a plurality of pixel blocks is provided. The pixel blocks are arranged in an array. Each of the pixel blocks includes a conversion gain. At least two of the conversion gains are different, and the pixel block located in a central location of the array has a minimum conversion gain.

公开(公告)号：US10375333B2

公开(公告)日：2019-08-06

申请号：US15792770

申请日：2017-10-25

Applicant: Novatek Microelectronics Corp.

Inventor： Dong-Hai Huang

IPC: H04N5/374 ,  H01L27/146 ,  H04N9/04

Abstract: An image sensing device including a plurality of pixel circuits arranged in an array and configured to sense images and temperatures is provided. Each of the pixel circuits includes a photo sensing device, a transmission gate transistor, a reset transistor and an output stage circuit. The first end of the transmission gate transistor is coupled to the first end of the photo sensing device. The second end of the photo sensing device is coupled to a first voltage or a second voltage. The first end of the reset transistor is coupled to a first power, a first current bias or a second current bias. The second end of the reset transistor is coupled to the second end of the transmission gate transistor. The input end of the output stage circuit is coupled to the second end of the reset transistor. The output end of the output stage circuit outputs a temperature sensing signal or an image sensing signal.

公开(公告)号：US20190124286A1

公开(公告)日：2019-04-25

申请号：US15792770

申请日：2017-10-25

Applicant: Novatek Microelectronics Corp.

Inventor： Dong-Hai Huang

IPC: H04N5/374 ,  H01L27/146 ,  H04N9/04

CPC classification number: H04N5/3741 ,  H01L27/14609 ,  H01L27/1463 ,  H01L27/14643 ,  H04N5/3698 ,  H04N5/3745 ,  H04N9/045

Abstract: An image sensing device including a plurality of pixel circuits arranged in an array and configured to sense images and temperatures is provided. Each of the pixel circuits includes a photo sensing device, a transmission gate transistor, a reset transistor and an output stage circuit. The first end of the transmission gate transistor is coupled to the first end of the photo sensing device. The second end of the photo sensing device is coupled to a first voltage or a second voltage. The first end of the reset transistor is coupled to a first power, a first current bias or a second current bias. The second end of the reset transistor is coupled to the second end of the transmission gate transistor. The input end of the output stage circuit is coupled to the second end of the reset transistor. The output end of the output stage circuit outputs a temperature sensing signal or an image sensing signal.