Data recording device capable of reducing direct-current component and method thereof

摘要

In a data recording device (200) a format circuit (118) formats data to be recorded in a user data area and a pattern generation circuit (119) generates a data pattern to be recorded in a preformatted area that is provided to reduce a direct-current (DC) component. A selector circuit (120) selects the data pattern via a terminal (121) at a timing of recording data in the preformatted area and selects the formatted data via a terminal (122) at a timing of recording data in the user data area. Then the selector circuit (120) outputs selected data to a magnetic head drive circuit (123). Thus, when data is reproduced from the user data area it can be reproduced free of a significant effect of the DC component and hence reliably. <IMAGE>