Patent ID: 9498124
Filing Date: 2016-11-22
CPC Classification: A61B,A61F,F04C,G02C,G06K

Claim Text:
1. An ophthalmic lens assembly, comprising: a photodetector; a signal path associated with an output of the photodetector, the signal path including an amplifier having a gain and configured to receive a signal from the photodetector; and a system controller in communication with the amplifier, the system controller including a processor configured to receive the amplified signal, the processor sampling at a predetermined rate, and at least temporarily saving collected samples, determining when an eyelid is open or closed in order to characterize blinking by divining the number, time period and pulse width of the blinks from the collected samples, calculating a number of blinks and the duration of the blinks in a given time period, comparing the number of blinks, the durations of the blinks in the given time period, and the time between blinks in the given time period to a stored set of samples to determine patterns in blinking, determining if the blinks correspond to one or more intentional blink sequences, the step of determining including allowance for deviations in the durations of the blinks from the durations of the blinks in the one or more predetermined intentional blink sequences and utilizing the one or more intentional blink sequences as feedback signals for the system controller.