| 摘要 |
PURPOSE:To reduce memories and to attain the effective utility by writing non-call patterns which are compressed and continuously transmitting the non call patterns for a necessary number in reproduction. CONSTITUTION:When the non-call patterns are detected from digital sound data written into a memory 307, a non-call pattern detection output is transmitted to a D flip flop circuit 313 in a non-call pattern detection circuit 311. The D flip flop circuit 313 holds the non-call pattern detection output, accordingly closes an AND gate 303, and stops the count input of a counter 305. Consequently, a write address will not be updated. On the other hand, the D flip flop circuit 313 starts the addition-counting of an up counter 315 in correspondence with the non-call pattern output, gives a count input to a counter 317 and the register number '0' of a register 319 is designated by the count value 6. |
