| 摘要 |
A data compression apparatus is disclosed for data compressing a plurality of information signals. The data compression apparatus comprises input terminals (1,2) for receiving the information signals, prediction units (6,8) for carrying out a prediction step on the plurality of information signals so as to obtain a plurality of prediction signals, probability signal determining units (12,14) for generating in response to the plurality of information signals a corresponding plurality of probability signals, a first switching unit (4) for each time selecting a symbol in one a plurality of input signals applied to the first switching unit, a second switching unit (10) for each time selecting a probability signal corresponding to the symbol selected by the first switching unit, a control signal generator unit (24) for generating switching control signals for the first and second switching units (4,10), a lossless coding unit (18) and an output terminal (22) for supplying said data compressed output signal. |
