Embodiments described herein provide for improving quality of service in a cellular network. It extracts a reference brightness value on the basis of the plurality of brightness values. The method comprises placing the window regulators on a test fixture, operating the window regulator with a simulated glass load, and generating and processing the first and second signal quantities as described above. A second conductive layer is formed over a second surface of the first semiconductor die opposite the first surface and electrically connects to the plurality of conductive vias. If the status signal does not have the first state, the write data word is written to the memory array, along with the status signal. The remote control is low-cost, consumer-friendly, programmable, has its own graphical display so it does not interfere with a TV or other viewing screen, and is capable of interacting with the internet or other data source to provide a rich set of functionality.