Patent ID: 6222979
Filing Date: 2001-04-24
Classification: G11B,H04N

Abstract:
An apparatus for reproducing a digitally encoded signal having data including a first data type and a second data type represented therein, both of which data types are decoded when reproducing the signal in one of at least two modes, and one of said data types not being decoded when reproducing the signal in another of said at least two modes, the apparatus comprising:a source of a bitstream representative of said digitally encoded signal, wherein said first data type contains non-picture information and said second data type contains picture information;a processor coupled to said bitstream for processing said bitstream to extract at least said first data type and second data type represented therein;a memory controllably coupled to said processor for storing said first data type and said data type; and,a controller coupled to control allocation of said memory, wherein in a first reproducing mode said controller allocates said memory for storing both said first data type and said second data type in respective parts of said memory, and in a second reproducing mode said controller allocates said memory differently from said first reproducing mode for overwriting with said second data type a part of said memory used for storing said first data type in said first reproducing mode.