US 12,437,707 B2
Pseudo-exponential encoding for light-emitting devices and related methods
Christopher P. Hussell, Raleigh, NC (US)
Assigned to CreeLED, Inc., Durham, NC (US)
Filed by CreeLED, Inc., Durham, NC (US)
Filed on Sep. 27, 2023, as Appl. No. 18/475,620.
Prior Publication US 2025/0104604 A1, Mar. 27, 2025
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/0286 (2013.01); G09G 2370/08 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A method of light output control for a light-emitting diode (LED) device, the method comprising:
receiving compressed data comprising a first set of data bits and a second set of data bits, wherein the first set of data bits is a mantissa and the second set of data bits is an exponent;
conveying the mantissa to an internal register in a first position determined by the exponent;
introducing a predetermined bit value to the internal register in a second position determined by the exponent, wherein the predetermined bit value is placed in a next more significant position immediately adjacent to the mantissa; and
driving at least one LED chip according to contents of the internal register, the contents being based on the mantissa and the exponent.