US 12,483,786 B2
Apparatus and method for controlling optical image stabilization (OIS) using low-power processor
Intae Jun, Suwon-si (KR); Daeho Kim, Suwon-si (KR); Daehwan Lee, Suwon-si (KR); Kyungwan Han, Suwon-si (KR); Byoungjun Kim, Suwon-si (KR); Yeonhak Kim, Suwon-si (KR); and Gunhee Park, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Mar. 21, 2023, as Appl. No. 18/187,315.
Application 18/187,315 is a continuation of application No. PCT/KR2023/002205, filed on Feb. 15, 2023.
Claims priority of application No. 10-2022-0062188 (KR), filed on May 20, 2022; and application No. 10-2022-0088518 (KR), filed on Jul. 18, 2022.
Prior Publication US 2023/0379580 A1, Nov. 23, 2023
Int. Cl. H04N 23/68 (2023.01)
CPC H04N 23/683 (2023.01) [H04N 23/6812 (2023.01); H04N 23/687 (2023.01)] 21 Claims
OG exemplary drawing
 
1. An optical image stabilization (OIS) method, comprising:
storing an image stabilization (IS) control instruction group in a memory using a general-purpose processor in case that an anti-shake start event occurs;
driving a polling timer to perform IS at a preset interval by executing a polling timer instruction included in the IS control instruction group using a low-power processor;
correcting a shake of a camera based on the IS control instruction group, using the low-power processor;
verifying whether the preset interval of the polling timer expires using the low-power processor in case that an anti-shake end event does not occur after the correcting of the shake of the camera;
repeating the correcting of the shake of the camera using the low-power processor in case that the preset interval of the polling timer expires; and
waiting for a preset time until the preset interval of the polling timer expires using the low-power processor, in case that the preset interval of the polling timer does not expire.