Patent ID: 8249420
Filing Date: 2012-08-21
Classification: H04N

Abstract:
1. A reproducing device for playing back data from a recording medium, comprising: a plurality of play back circuits for reading first stream data and second stream data from a recording medium, each of the first stream data and the second stream data having a plurality of fixed-length packets, and each fixed-length packet having a timestamp which indicates a transmit timing in units of the fixed-length packet, where the first stream data includes first audio data, first subtitle data, and first graphics data, and where the second stream data includes second audio data, second subtitle data and second graphics data; a first timing adjustment circuit for adjusting a transmit timing of the first stream data according to the timestamp; a second timing adjustment circuit for adjusting a transmit timing of the second stream data according to the timestamp; a plurality of selection circuits for conducting plural selections, including: a plurality of output circuits for outputting the audio data, the subtitle data and the graphics data selected by the selection circuits; wherein the first stream data and the second stream data are reproduced synchronously; and wherein the subtitle data and the graphics data from the selection circuits are superimposed together with each other and outputted.