In an implementation in rate gyro mode, the method includes exciting the vibrating member with a combination of control signals including an amplitude control signal at a frequency twice the resonant frequency, and a quadrature control signal at DC. The map shows a geographic area and includes coded data that is indicative of the map and reference points on the map. The comb filter includes a cross-chroma detector to detect luminance information within chrominance data from a first image field responsive to chrominance data from at least one other image field and a cross-luma detector to detect chrominance information within the luminance data from the first image field responsive to the luminance data from at least one other image field. The closure is provided with a compartment to contain the product to be dispensed.