a method and apparatus for generating a further scanning frequency from an input scanning frequency and an output scanning frequency which is located very close to an input scanning frequency or output scanning frequency . a further scanning frequency is derived from the input scanning frequency and the output scanning frequency . scanning values of an input scanning sequence are converted by a first conversion into scanning values of a further scanning sequence with a further scanning frequency . the scanning values of the further scanning sequence are converted into scanning values of an output scanning sequence . an adaptation on one of the two conversions of the scanning frequencies is then performed and a scanning rate conversion with a predetermined ratio is performed on the other of the two conversions . phase errors and deviations of the scanning frequency , which may be contained in the further scanning sequence , are compensated for by delaying the scanning values and by performing a periodically occurring change - over process .