公开(公告)号：US11818484B2

公开(公告)日：2023-11-14

申请号：US17381777

申请日：2021-07-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Bumsik Chung ,  Minsun Keel ,  Myoungoh Ki ,  Daeyun Kim

IPC: H04N25/75 ,  G01S17/89 ,  G01S17/26 ,  G01S7/48 ,  H04N23/80 ,  H04N25/40 ,  H04N25/71

CPC classification number: H04N25/75 ,  G01S7/4808 ,  G01S17/26 ,  G01S17/89 ,  H04N23/80 ,  H04N25/40 ,  H04N25/745

Abstract: An imaging device includes a light source operated by an optical control signal generated using a first reference signal having a first frequency and a second reference signal, having a second frequency different from the first frequency, a plurality of pixels, each of the plurality of pixels including a pixel circuit outputting a pixel signal corresponding to the electrical charge of a photodiode, and a logic circuit configured to generate raw data to generate a depth image, using the pixel signal. The plurality of pixels include first pixels and second pixels, and the logic circuit inputs a first photo control signal, having the first frequency, to the pixel circuit connected to a photodiode in each of the first pixels, and inputs a second photo control signal, having the second frequency, to the pixel circuit connected to a photodiode in each of the second pixels.

公开(公告)号：US11818482B2

公开(公告)日：2023-11-14

申请号：US17945688

申请日：2022-09-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Daeyun Kim ,  Myoungoh Ki ,  Seungchul Shin

IPC: H04N25/705 ,  H04N25/71

CPC classification number: H04N25/705 ,  H04N25/745

Abstract: An image sensor and a camera are provided. The image sensor includes: a demodulation clock generation circuit configured to generate first to fourth demodulation clock signals respectively having first to fourth phases; a demodulation phase selection circuit configured to generate first to fourth pre-demodulation signals based on the first to fourth demodulation clock signals and a random number that changes for each of a plurality of packets; a delay circuit configured to generate a first delay signals, second delay signals, third delay signals and fourth delay signals by delaying the first to fourth pre-demodulation signals by a plurality of delay phases; and a phase mixer configured to generate first to fourth demodulation signals of which phases are changed based on an address that changes for each of the plurality of packets. The first to fourth phases have a phase difference of 90° from each other.

公开(公告)号：US11644552B2

公开(公告)日：2023-05-09

申请号：US16921060

申请日：2020-07-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Younggu Jin ,  Min-Sun Keel ,  Daeyun Kim ,  Youngchan Kim

IPC: G01S7/48 ,  G01S7/486 ,  G01S17/894 ,  G01S7/481 ,  G01S7/4863 ,  G01S17/18

CPC classification number: G01S7/4868 ,  G01S7/4815 ,  G01S7/4863 ,  G01S17/18 ,  G01S17/894

Abstract: An electronic device includes a time of flight (ToF) sensor including a pixel array, a light source that emits light signals, and an optical device that projects the light signals to areas of an object which respectively correspond to a plurality of pixel blocks including pixels of the pixel array. Each of the pixels includes a plurality of taps each including a photo transistor, a first transfer transistor connected with the photo transistor, a storage element connected with the first transfer transistor, a second transfer transistor connected with the storage element, a floating diffusion area connected with the second transfer transistor, and a readout circuit connected with the floating diffusion area. An overflow transistor is disposed adjacent to the photo transistor and connected with a power supply voltage.