Patent ID: 8539300
Filing Date: 2013-09-17
Classification: G06F,G11C

Abstract:
1. An information recording and reproducing apparatus for writing user data received from an external device to a recording medium, reading the user data from the recording medium and transmitting the user data to the external device, the apparatus comprising: an external interface unit operable to transmit and receive the user data to and from the external device; a first ECC generator operable to generate parity data corresponding to the user data; an access unit operable to control recording and reading of the user data or the parity data to and from the recording medium; a recording controller operable to record the user data and the parity data to the recording medium via the access unit; an ECC correcting unit operable to correct an error of the user data read from the recording medium using the parity data read from a nonvolatile memory via the access unit; and a reproducing controller having a first reproducing mode for reading and reproducing the user data without reading the parity data from the recording medium at the time of reproducing data and a second reproducing mode for reading and reproducing at least the parity data from the recording medium, the reproducing controller operable to detect presence or non-presence of an error of the user data read from the recording medium during execution of the first reproducing mode and executing the second reproducing mode when the presence of an error is detected, wherein a plurality of recording media is provided, wherein the access unit is provided in a same number as the recording media, wherein the user data is divided to a plurality of data, wherein the recording controller records the divided user data and the parity data to the corresponding recording medium via the corresponding access unit, and wherein, when the first reproducing mode is executed, the reproducing controller controls the access unit that controls the recording medium recording the parity data to make a control signal to the recording medium inactive.