An article coated with an electrolytically deposited bio-compatible composite layer useful as an internal prosthetic device is disclosed. The first motion vector field being computed, on basis of a first image and a second image of a sequence of images, for a temporal position between the first and second images. For this transmission formats for bursts, channels, TDMA frames are defined and an adaptation layer for the three traffic types is described. The plurality of drive signals are selectively applied to the pressure-generating device, and include at least a first drive signal and a second drive signal, generated sequentially. Further, in some implementations, the blocking of the next N rising edges of the opposite clock may effectively increase the positive gain of the PFD.