Patent attributes
A haptic feedback element controller for a mobile device and a method of controlling a haptic feedback element for a mobile device is described. The haptic feedback element includes a processor having a processor output, a first processor input, and a second processor input, a control state module having an output coupled to the second processor input and configured to determine at least one operating state parameter of at least one of a haptic feedback element and a haptic feedback element amplifier; wherein the processor is configured to alter the amplitude of one or more frequency components of an input signal received on the first processor input in dependence of the at least one operating state parameter and to output a processed signal to a haptic feedback element amplifier having an output for coupling to a haptic feedback element. The haptic feedback element controller may maximize the drive signal up to mechanical and thermal limits without lifetime reduction of the haptic feedback element.
