A device for detection of sectors defective and allocation of sectors of a replacement in a memory disk

摘要

P the device according to the invention comprises first means enabling the recording or the retrieval of said information on the sectors are free of defects (multiplexer 1, the shift register 6, control logic of the transducers 6), the second means for detecting in the order in which they are detected by the sectors rise to defects (counter of the number of sectors to save 9, a memory of the pointer of the sector 8, the buffer registers 2) as well as the third means for assigning at the end of the track addressed by the addressing means of the sectors of the replacement of a number equal to the number of sectors subject of the detected defects. / p & & p & application: unit of the magnetic disks. / p