Here are the two patents:<p><a href="https://patents.google.com/patent/US10912502B2/en?oq=us10%2c912%2c502" rel="nofollow noreferrer">https://patents.google.com/patent/US10912502B2/en?oq=us10%2c...</a><p><a href="https://patents.google.com/patent/US10945648B2/en?oq=us10%2c945%2c648" rel="nofollow noreferrer">https://patents.google.com/patent/US10945648B2/en?oq=us10%2c...</a><p>these don't seem to be typical patent troll stuff. Here's Claim 1 of the '648 patent:<p>1. A user-worn device configured to non-invasively measure a physiological parameter of a user, the user-worn device comprising:<p>a first set of light emitting diodes (LEDs), the first set of LEDs comprising at least an LED configured to emit light at a first wavelength and an LED configured to emit light at a second wavelength;<p>a second set of LEDs spaced apart from the first set of LEDs, the second set of LEDs comprising at least an LED configured to emit light at the first wavelength and an LED configured to emit light at the second wavelength;<p>four photodiodes arranged on an interior surface of the user-worn device and configured to receive light after attenuation by tissue of the user;<p>a protrusion comprising:<p>a convex surface extending over the interior surface,<p>a plurality of openings in the convex surface extending through the protrusion and aligned with the four photodiodes, each opening defined by an opaque surface, and<p>a plurality of windows, each of the windows extending across a different one of the openings; and<p>one or more processors configured to receive one or more signals from at least one of the photodiodes and calculate a measurement of the physiological parameter of the user.