Patent ID: 6400658
Filing Date: 2002-06-04
Classification: G11B

Abstract:
A DVD-RAM disk reproduction apparatus for reducing errors during detection of ID data, the apparatus comprising:a DVD-RAM disk having a plurality of data sectors each having a header region, which stores the ID data and includes an upper header region and a lower header region which are disposed adjacent to each other, and a recording region which stores user data; an optical pickup to pick up a plurality of signals from the DVD-RAM disk; a playback signal amplifier which obtains a data signal for reproducing the user data which is recorded in the recording region of the DVD-RAM disk from the plurality of signals picked up from the disk via the optical pickup, obtains an ID signal for reproducing the ID data which is recorded in the header region using a control signal, divides the plurality of signals and separately provides groups of sum signals in correspondence to disposition of the upper header region and the lower header region in the header region to generate the control signal, and outputs the data and ID signals in correspondence to the recording region and the header region; and means for processing the data and ID signals output from the playback signal amplifier.