Patent ID: 8170400
Filing Date: 2012-05-01
Classification: G10L,G11B,H04N

Abstract:
1. A non-transitory information recording medium on which a stream, having plural access units and which includes at least one of image and audio, is recorded, wherein: each of the access units has: a first packet which includes basic data; and a second packet which includes extension data related to the basic data; the basic data is data that can be decoded in a completed state without requiring the extension data and the extension data is data for improving the quality of data generated from the basic data; wherein the first packet and the second packet in the stream are assigned with time stamps indicating relative times at which the first packet is inputted to a buffer and the second packet is inputted to a buffer, so that a buffer model of a first decoder does not fail and a buffer model of a second decoder does not fail, the first decoder decoding only the basic data, and the second decoder decoding the basic data and the extension data, the buffer model of the first decoder includes a first buffer and a second buffer in an order of processing the basic data, the buffer model of the second decoder includes a third buffer and a fourth buffer in an order of processing the basic data and the extension data, the second buffer has a size different from a size of the fourth buffer, the basic data is transferred from the first buffer to the second buffer at a first transfer Rate, the basic data and the extension data are transferred from the third buffer to the fourth buffer at a second transfer rate, and the first transfer rate is different than the second transfer rate.