US 11,815,390 B2
Weigh platter assembly with off-platter detection
Edward Barkan, Miller Place, NY (US); Darran Michael Handshaw, Sound Beach, NY (US); and Mark Drzymala, Saint James, NY (US)
Assigned to Zebra Technologies Corporation, Lincolnshire, IL (US)
Filed by ZEBRA TECHNOLOGIES CORPORATION, Lincolnshire, IL (US)
Filed on May 9, 2022, as Appl. No. 17/740,084.
Application 17/740,084 is a continuation of application No. 16/724,082, filed on Dec. 20, 2019, granted, now 11,326,932.
Prior Publication US 2022/0260409 A1, Aug. 18, 2022
Int. Cl. G01G 19/40 (2006.01); G01G 19/414 (2006.01); G01V 8/12 (2006.01); G06Q 20/20 (2012.01); G01G 21/22 (2006.01); G06K 7/14 (2006.01)
CPC G01G 19/40 (2013.01) [G01G 19/4144 (2013.01); G01G 21/22 (2013.01); G01V 8/12 (2013.01); G06K 7/1413 (2013.01); G06Q 20/208 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A weigh platter assembly for use in a barcode scanner, the weigh platter assembly comprising:
a weigh platter having a surface extending in a first transverse plane, wherein the weigh platter is configured to support an object placed on the surface and the surface has a proximal edge and a lateral edge non-parallel relative to the proximal edge; and
an off-platter detection assembly comprising:
an assembly field-of-view extending from the proximal edge;
a light emission assembly having a light source, the light emission assembly configured to emit a light away from the proximal edge;
a light detection assembly having a light sensor, the light detection assembly configured to detect at least a portion of the light reflected towards the proximal edge; and
a controller in communication with the light detection assembly and configured to prevent a measured weight from being recorded by a host system operatively coupled to the controller and/or provide an alert in response to a value from the light detection assembly falling within a predetermined range,
wherein at least one of (i) the light sensor has a transverse field-of-view angle greater than a transverse field-of-view angle of the assembly field-of-view and the weigh platter assembly further comprises one or more optical elements configured to constrain the transverse field-of-view angle of the light sensor to the transverse field-of-view angle of the assembly field-of-view or (ii) the light source has a field-of-view greater than the assembly field-of-view and the light emission assembly further comprises one or more optical elements configured to constrain the field-of-view of the light source transversely to the assembly field-of-view.