US 12,236,653 B2
Vision sensors, image processing devices including the vision sensors, and operating methods of the vision sensors
Jongseok Seo, Seoul (KR); Hyunku Lee, Suwon-si (KR); and Heejae Jung, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Gyeonggi-do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on May 2, 2024, as Appl. No. 18/653,271.
Application 18/059,469 is a division of application No. 16/843,231, filed on Apr. 8, 2020, granted, now 11,532,143, issued on Dec. 20, 2022.
Application 18/653,271 is a continuation of application No. 18/341,968, filed on Jun. 27, 2023, granted, now 12,002,247.
Application 18/341,968 is a continuation of application No. 18/059,469, filed on Nov. 29, 2022, granted, now 11,727,662, issued on Aug. 15, 2023.
Claims priority of application No. 10-2019-0076347 (KR), filed on Jun. 26, 2019.
Prior Publication US 2024/0282070 A1, Aug. 22, 2024
Int. Cl. G06V 10/147 (2022.01); G06F 18/243 (2023.01); G06T 5/70 (2024.01); G06T 7/20 (2017.01); G06T 7/70 (2017.01); G06V 10/22 (2022.01); G06V 10/25 (2022.01); H04N 23/667 (2023.01); H04N 23/80 (2023.01)
CPC G06V 10/147 (2022.01) [G06F 18/243 (2023.01); G06T 5/70 (2024.01); G06T 7/20 (2013.01); G06T 7/70 (2017.01); G06V 10/22 (2022.01); G06V 10/25 (2022.01); H04N 23/667 (2023.01); H04N 23/80 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A dynamic vision sensor, comprising:
a pixel array comprising a plurality of pixels arranged in a matrix, each pixel configured to generate one or more electrical signals in response to a change in intensity of incident light;
an event detection circuit configured to process electrical signals received from the pixel array, and generate event signals, each event signal of the event signals including a polarity and an address corresponding to a separate electrical signal of the electrical signals;
an event rate controller configured to count the event signals and transmit some of the event signals as output event signals in response to a count value of the event signals being equal to or greater than a reference value; and
an interface circuit configured to output the output event signals to an external device,
wherein the event detection circuit includes an address event representation to generate the address.