| 摘要 |
PURPOSE:To decide the erasion of a word and at the same time to write the new information to the word being erased, by giving the priority to the working of an associative memory to each word based on the carrer value relating to the number of times of working for each word. CONSTITUTION:In case the data useful to an word is stored, i.e., an up-down counter 2 is not reset, the retrieving result 1 given from each word is supplied to the 2nd selector 13 via an AND gate 7 since the output of the 1st OR gate 6 is set at logic 1. The output of the gate 7 is selected and supplied to an up-count control terminal 3 by a changeover switch 14. Then 1 is added to the counter 2, and the selecting frequency of the relevant word is counted. When the stored information is erased, the word is excluded from the retrieving subjects by subtracting 1 from the contents of the word counter. Then the stored information is erased to be ready for the rewriting. |
