EINRICHTUNG UND VERFAHREN ZUR DYNAMISCHEN SPURNACHFUEHRUNG

摘要

Dynamic search device using an error flag signal and its method of implementation, which can perform normal track following by correcting the position of a head. The device includes a multiplexer (70) which selects an error flag signal by a mode selection signal, a system controller (80) for delivering a control signal as a function of a reference value, and a head position excitation section (90) which delivers an excitation signal to the head to set its position. <IMAGE>