| 摘要 |
PURPOSE:To correct assuredly a code error despite the generation of a drop-out by changing the pointer value of the 2nd memory means to the value corresponding to the presence of an error after the pointer is read out of the 2nd memory means and before the new continuous data are supplied. CONSTITUTION:An error correcting circuit 20 corrects an error of the data showing the presence of an error among those data read out of an RAM11 in response to a correcting action command signal (i) and then sends the corrected data to a data bus 10 to write it to the RAM11. At the same time, the data corresponding to the value corresponding to the absence of an error is sent to a data input terminal of an RAM6 so that the corresponding pointer value written to the RAM6 is changed to the value corresponding to the presence of errors. The data read successively out of the RAM11 in a prescribed cycle are latched by a latch circuit 21 and sent to a D/A converter, etc. At the same time, a pointer read out of the RAM6 is latched by a latch circuit 22 and sent to the D/A converter, etc. |
