Abstract: An embodiment generally relates to a method of operating a sensor array. The method includes adjusting the reverse bias voltage for the photodiode of at least one pixel in the sensor array based on previous output values of one or more pixels in the array, algorithms, and/or user inputs.

Abstract: A sensor includes a light detector for dividing light in an environment into optical zones and detecting light from the optical zones. The sensor also includes a processor coupled to the light detector; and a memory coupled to the processor for storing the detected light as historic light readings.

Abstract: A method of extending color depth in a display includes determining pixel sub-intervals for pixel intervals in a video signal, modulating a transmissivity of a display panel of the display from one sub-interval to another sub-interval, and modulating backlight intensity of a backlight from the one sub-interval to the another sub-interval.

Abstract: Embodiments of the present invention provide a closed loop control system that is capable of handling a wide variety of loads. In some embodiments, the control system uses a pulse width modulated (PWM) signal to drive a plant. The PWM signal has a switching frequency. A feedback signal is measured from the plant and provided back to controller. The feedback signal may be converted into a digital feedback signal based on oversampling the feedback signal at a multiple, such as twice, of the switching frequency of the PWM signal. The digital feedback signal may then be filtered to reduce or remove any unwanted components. For example, the digital feedback signal may be passed through a notch filter that suppresses a range of frequencies centered around the switching frequency of the PWM signal. In addition, the digital feedback signal may be passed through a digital low pass filter. Based on the filtered digital feedback signal, the controller may then adjust the PWM signal delivered to the plant.