Patent ID: 11935461
Assignee: LUMILEDS, LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A method performed by a light emitting diode (LED) matrix controller, the method comprising:
sampling an anode voltage of each LED of a plurality of pixels resulting in sampled voltages;
determining an average voltage based on the sample voltages; and
determining a total voltage to provide to the pixels based on the average voltage and voltage data from a memory coupled to the controller, the voltage data including one or more of a 3-sigma value that is three times a standard deviation of forward voltages of the pixels, a driver headroom value that indicates how much higher than a forward voltage a driver voltage needs to be for the driver to operate the LED, a resistance value that is an estimate of an equivalent resistance used to determine I*R losses from a control system, or a k-factor value that indicates how much to increase VLED if there is a change in content to be provided by the LED.