Patent ID: 7139143
Filing Date: 2006-11-21
Classification: G11B

Abstract:
1. A disk device, comprising: a recording medium having a recording surface including a data block and servo block thereon, said servo block having servo data recorded therein for controlling the position of a head, on said recording surface, which records and reproduces data in said data block; a signal processing device for detecting data in said data block from a read signal read from said recording medium and for outputting said detected data via a NRZ bus; a data processing device for transferring write data outputted from a host computer to said signal processing device via said NRZ bus, and reading read out data transferred from said signal processing device via said NRZ bus to transfer to the host computer; and a processor for controlling said signal processing device and data processing device; said signal processing device including an analog-to-digital converter for analog-to-digitally converting servo burst data in said read signal, read out from said servo block and selecting means for receiving said servo burst data converted by said analog-to-digital converter and said data read from said data blocks, and for selecting and outputting, to said NRZ bus, either said servo burst data converted by said analog-to-digital converter or said data read from said data block.