	US 11,997,394 B2
	Systems and methods for calibrating and operating imaging systems with illumination external to a host
Paul D. Haist, Toronto (CA); Matthew Lawrence Horner, Sound Beach, NY (US); Christopher P. Klicpera, Westbury, NY (US); and Thomas J. Stevenson, Wixom, MI (US)
Assigned to Zebra Technologies Corporation, Lincolnshire, IL (US)
Filed by ZEBRA TECHNOLOGIES CORPORATION, Lincolnshire, IL (US)
Filed on Sep. 29, 2022, as Appl. No. 17/956,298.
Prior Publication US 2024/0114237 A1, Apr. 4, 2024
Int. Cl. H04N 23/56 (2023.01); G01N 21/88 (2006.01); H04N 23/661 (2023.01); H04N 23/72 (2023.01); H04N 23/74 (2023.01)

CPC H04N 23/72 (2023.01) [G01N 21/8806 (2013.01); H04N 23/56 (2023.01); H04N 23/661 (2023.01); H04N 23/74 (2023.01); G01N 2021/8838 (2013.01)]

21 Claims

13. A method for calibrating and/or operating an imaging assembly having an illumination assembly associated therewith, comprising:

transmitting, from a host that is communicatively coupled to the imaging assembly and the illumination assembly, a first exposure control signal to the imaging assembly and a first illumination control signal to the illumination assembly, there being a first time-differential between the transmitting the first exposure control signal and the transmitting the first illumination control signal;

responsive to receiving the first exposure control signal, capturing, by the imaging assembly, a first image data;

transmitting, from the host, a second exposure control signal to the imaging assembly and a second illumination control signal to the illumination assembly, there being a second time-differential between the transmitting the second exposure control signal and the transmitting the second illumination control signal;

responsive to receiving the second exposure control signal, capturing, by the imaging assembly, a second image data;

transmitting, from the host, a third exposure control signal to the imaging assembly and a third illumination control signal to the illumination assembly, there being a third time-differential between the transmitting the third exposure control signal and the transmitting the third illumination control signal, each of the first time-differential, the second time-differential, and the third time-differential being different from each other of the first time-differential, the second time-differential, and the third time-differential;

responsive to receiving the third exposure control signal, capturing, by the imaging assembly, a third image data;

determining which of a first image data, a second image data, and a third image data has a peak-brightness;

responsive to the first image data having the peak-brightness, associating the first time-differential with a set time-differential;

responsive to the first image data having the peak-brightness, associating the first time-differential with the set time-differential;

responsive to the first image data having the peak-brightness, associating the first time-differential with the set time-differential; and

transmitting, from the host, a fourth exposure control signal to the imaging assembly and a fourth illumination control signal to the illumination assembly, there being the set time-differential between the transmitting the fourth exposure control signal and the transmitting the fourth illumination control signal.