US 11,699,361 B2
Data security apparatus and method using constant optical signal input to analog component
Joshua Norman Smith, Mobile, AL (US); Robert Chad McCollum, Mobile, AL (US); and Andrey Bogdanov, Copenhagen (DK)
Assigned to OPe, LLC, Theodore, AL (US)
Filed by OPe, LLC, Theodore, AL (US)
Filed on Apr. 2, 2021, as Appl. No. 17/221,228.
Application 17/221,228 is a continuation of application No. 16/004,682, filed on Jun. 11, 2018, granted, now 11,004,360.
Claims priority of provisional application 62/517,533, filed on Jun. 9, 2017.
Prior Publication US 2021/0256878 A1, Aug. 19, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G09C 1/00 (2006.01); G02F 1/1343 (2006.01); H04L 9/06 (2006.01); H04L 9/08 (2006.01); G02F 1/13 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01)
CPC G09C 1/00 (2013.01) [G02F 1/1313 (2013.01); G02F 1/13439 (2013.01); G02F 1/133524 (2013.01); G02F 1/134309 (2013.01); H04L 9/0618 (2013.01); H04L 9/0631 (2013.01); H04L 9/0637 (2013.01); H04L 9/0866 (2013.01); G02F 1/133723 (2013.01); H04L 2209/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An apparatus, comprising:
an optical source configured to output a constant optical signal;
a liquid crystal cell, configured to receive the constant optical signal, having first electrodes, and one or more second electrodes opposite the first electrodes; and
a sensor configured to provide a sensor output based on sensing an optical output of the liquid crystal cell.