| 摘要 |
PURPOSE:To prevent the interruption of a decoding process due to the output processing of data by providing a control circuit which outputs an interruption signal to a data output circuit, and turning the output processing of the data into a private block. CONSTITUTION:In a data output circuit, a memory pointer 17 indicates the output address of a memory 12, and increments the value each time the data are read from the memory 12. A control circuit 18 reads data 51 of the memory pointer 17 each time an (ack) signal 25 is inputted from a shift circuit 26, and outputs an interruption signal 19 when the value of the memory pointer 17 reaches the number of data in one frame. A program which executes the algorithm of the decoding transfers voice data for one frame decoded in the last frame to the memory 12 synchronously with the interruption signal 19, and operates the only decoding processing of codes for the next frame until the next interruption signal 19 is inputted. |
