An apparatus and a method for managing instant connection based on a wireless local area network are provided. The control unit is arranged for generating a color depth control signal. Also disclosed are methods of making and using compounds of formula, as well as pharmaceutical compositions containing compounds of formula. At the client device, property information on parallel data units transferred via different logical connections is compared. The external programming interface allows for the configuration of the PCIe switch to be modified to meet system demands. The spectral data is analyzed according to the level of power in specified Doppler frequency ranges.