Patent ID: 6466733
Filing Date: 2002-10-15
Classification: H04N

Abstract:
A digital recording/playback apparatus for recording normal play data and trick play data separately on a recording medium in a predetermined data format, and reproducing the data recorded on the recording medium, the apparatus comprising:an adding unit for adding extra information indicative of a decoding timing to a received transport stream and outputting the normal play data in units of a predetermined number of sync blocks; an extracting unit for extracting the trick play data from the received transport stream and outputting the trick play data in units of a predetermined number of sync blocks; an arranging unit for arranging the normal play data in a normal play data region, the trick play data in a trick play data region, and a predetermined pattern data in a stuffing region of the normal play data region according to a difference between a predetermined recording rate and a bit rate of the transport stream; an error correction coder for performing outer error correction on the normal play data, regardless of the trick play data and stuffing data among the arranged data, and outputting error-correction-coded data; and a modulator for modulating the error-correction-coded data and transmitting modulated data to the recording medium, wherein the error correction coder comprises: an outer error correction coder for arranging the predetermined pattern data in the stuffing region and the trick play data region simultaneously, adding an outer parity to the normal play data, and outputting outer-error-correction-coded data of normal play data; and an inner error correction coder for adding an inner parity to the outer-error-correction-coded data output from the outer error correction coder, and outputting inner-error-correction-coded data.