The device of forgetting to invalidate the information contained in a memory for a certain time and radar comprising such a device

摘要

This device 30 is made of forgetting to invalidate the information from a certain time in a memory 1 called the main direction in which are piecings of the addressing circuits for reading 15, the write addressing circuits 13 and a control circuit for reading -: 9. This device is formed by a list of the rate of forgetting 35, providing the signal whose period corresponds to a certain time, by two "memoires forgetting 37 and 38, the addressing entrees are given to the addressing circuits for reading and writing, by a write circuit 45, 46 cooperating with the control circuit for reading - written in order to write a signal of the two memoires of omission in the same time as the main memory is written by a circuit for the erasure 50 - 35 - 52 - 45 - 46 in the list of forgetting to record a turn to turn in one of the memoires of forgetting after a certain time, an erasing signal, by a line 55 of cancellation signals at the output of the branch memoires of forgetting to control a circuit for disabling 60 branch at the output of the main memory. / p & & p & application: display of radar images.