US 11,703,929 B2
Shelf with solar cell event trigger
Mark W. Duron, Mastic, NY (US); and Jimmy Chabra, Massapequa, NY (US)
Assigned to Symbol Technologies, LLC, Holtsville, NY (US)
Filed by SYMBOL TECHNOLOGIES, LLC, Holtsville, NY (US)
Filed on Apr. 7, 2020, as Appl. No. 16/842,508.
Application 16/842,508 is a continuation of application No. 15/856,811, filed on Dec. 28, 2017, granted, now 10,649,517.
Prior Publication US 2020/0233480 A1, Jul. 23, 2020
Int. Cl. G06F 1/32 (2019.01); G06F 1/3212 (2019.01); G06F 1/28 (2006.01); A47F 5/00 (2006.01); H01L 31/042 (2014.01); H02S 20/20 (2014.01); A47F 10/02 (2006.01); A47B 96/02 (2006.01)
CPC G06F 1/3212 (2013.01) [A47B 96/02 (2013.01); A47F 5/0018 (2013.01); A47F 5/0043 (2013.01); A47F 10/02 (2013.01); A47F 2010/025 (2013.01); G06F 1/28 (2013.01); H01L 31/042 (2013.01); H02S 20/20 (2014.12)] 10 Claims
OG exemplary drawing
 
1. A system comprising:
a plurality of shelves each having a front edge;
a solar cell circuit disposed at the front edge of each of the plurality of shelves; and
a controller operatively coupled to the solar cell circuits, the controller adapted to monitor a frequency of a saw-tooth waveform at which a power transfer of each solar cell circuit occurs, and adapted to signal a device in response to a change in the frequency of the saw-tooth waveform at which the power transfer occurs.