CIRCUIT ARRANGEMENT FOR SLOWLY CONSTANT FORWARD AND / OR BACKWARD MOVEMENT OF THE WRITE / READ HEADS IN A DISK MEMORY

摘要

A circuit arrangement provides a slow, constant forward or reverse movement of the write/read heads in a cylinder memory and includes a regulating circuit which comprises a track difference register, a digital/analog converter connected to the track difference register, an arrangement for providing a sign for the analog signal, and a function generator for receiving the analog signal. In the digital portion of the regulating circuit one or more of the low-value bits is activated in order to produce a slow, constant speed of the write/read heads.