US 11,809,948 B2
Detection of an optical code
Romain Müller, Waldkirch (DE); and Martin Hoegy, Waldkirch (DE)
Assigned to SICK AG, Waldkirch (DE)
Filed by SICK AG, Waldkirch (DE)
Filed on Feb. 17, 2022, as Appl. No. 17/674,359.
Claims priority of application No. 21157810 (EP), filed on Feb. 18, 2021.
Prior Publication US 2022/0261566 A1, Aug. 18, 2022
Int. Cl. G06K 7/10 (2006.01); G01S 17/894 (2020.01); G01S 17/08 (2006.01); H04N 23/56 (2023.01)
CPC G06K 7/10861 (2013.01) [G01S 17/08 (2013.01); G01S 17/894 (2020.01); G06K 7/10584 (2013.01); G06K 7/10831 (2013.01); H04N 23/56 (2023.01)] 18 Claims
OG exemplary drawing
 
1. A code scanning device for detecting an optical code on an object in a reading area, comprising:
a light transmitter for transmitting a reading beam;
a deflection unit for periodically deflecting the reading beam over the reading area with a scanning frequency fscan;
a light receiver for generating a received signal from a returning reading beam;
a distance sensor for detecting a distance d from the object; and
a control and evaluation unit configured to read a code content of the optical code on the basis of the received signal and further configured to set the scanning frequency fscan as a function of the distance d.