US 11,914,795 B1
Information handling system optical switch keyboard power management
Karthikeyan Krishnakumar, Austin, TX (US); and Peng Lip Goh, Singapore (SG)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Feb. 22, 2023, as Appl. No. 18/172,465.
Int. Cl. G06F 3/023 (2006.01); G06F 3/02 (2006.01)
CPC G06F 3/0202 (2013.01) 20 Claims
OG exemplary drawing
 
1. An information handling system comprising:
a housing;
a processor disposed in the housing and operable to execute instructions that process information;
a memory disposed in the housing and interfaced with the processor to store the instructions and information; and
an input device interfaced with the processor and having one or more optical switches mounted on an aluminum plate to detect inputs, the input device further having a magnetic field proximity sensor, a processing resource and a non-transitory memory interfaced with the processing resource and storing instructions that when executed on the processing resource cause:
power off at the one or more optical switches in response to a predetermined condition; and
power on at the one or more optical switches in response to detection by the magnetic field proximity sensor of disruption of a magnetic field radiated from the aluminum plate.