US 12,229,348 B2
Flexible optical finger tracking sensor system
Jun Amano, Hillsborough, CA (US)
Assigned to Konica Minolta Business Solutions U.S.A., Inc., San Mateo, CA (US)
Filed by Konica Minolta Business Solutions U.S.A., Inc., San Mateo, CA (US)
Filed on Dec. 30, 2022, as Appl. No. 18/091,463.
Prior Publication US 2024/0220032 A1, Jul. 4, 2024
Int. Cl. G06F 3/03 (2006.01); G06F 3/01 (2006.01); G06N 3/091 (2023.01)
CPC G06F 3/0304 (2013.01) [G06F 3/014 (2013.01); G06N 3/091 (2023.01)] 20 Claims
OG exemplary drawing
 
1. A system for tracking fingers of a hand, the system comprising:
a sensor patch comprising:
a flexible substrate layer;
a light emitting layer attached to the flexible substrate layer, wherein
the light emitting layer is configured to conform to a skin surface of a backside of the hand and to emit a first wavelength of light; and
a photodiode disposed between the light emitting layer and a surface of the sensor patch that contacts the hand; and
a processor configured to:
control emission of the first wavelength of light by the light emitting layer;
analyze backscattered light intensities from the skin surface of the backside of the hand that are detected by the photodiode;
determine finger pose information based on the backscattered light intensities; and
transmit the finger pose information.