US 12,283,078 B2
Scanning system and method for controlling aiming light source
Dongsheng Wang, Guangzhou (CN); Jiangtao Wei, Shenzhen (CN); Chen Chen, Shenzhen (CN); and Ziqian Han, Suqian (CN)
Assigned to WUXI IDATA TECHNOLOTY COMPANY LTD., Wuxi (CN)
Filed by WUXI IDATA TECHNOLOTY COMPANY LTD., Wuxi (CN)
Filed on Sep. 15, 2022, as Appl. No. 17/945,262.
Application 17/945,262 is a continuation of application No. PCT/CN2020/102998, filed on Jul. 20, 2020.
Prior Publication US 2023/0005234 A1, Jan. 5, 2023
Int. Cl. G06V 10/141 (2022.01); G06T 9/00 (2006.01); G06V 10/60 (2022.01)
CPC G06V 10/141 (2022.01) [G06T 9/00 (2013.01); G06V 10/60 (2022.01); G06T 2207/10144 (2013.01); G06T 2207/10152 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A scanning system for controlling an aiming light source, comprising:
an image sensor, which sequentially exposes a pixel array through a rolling shutter to acquire an image of a target, the pixel array includes effective pixels and non-imaging pixels, the effective pixels are pixels that are actually used for image decoding, and the non-imaging pixels are pixels that are not actually used for image decoding;
an aiming light source for projecting an aiming pattern to aim at the target;
a control unit for controlling the image sensor and the aiming light source, so that the aiming light source is turned off during an exposure time of the effective pixels, and the aiming light source is turned on during at least part of the exposure time of the non-imaging pixels;
wherein image formed by the effective pixels is used to extract characters for decoding, and image formed by the non-imaging pixels is removed during image preprocessing.