公开(公告)号：US10241717B2

公开(公告)日：2019-03-26

申请号：US14143162

申请日：2013-12-30

Applicant: QUALCOMM TECHNOLOGIES INTERNATIONAL, LTD.

Inventor： Neil Stewart

IPC: G06F9/45 ,  G06F12/08 ,  G06F12/0808 ,  G06F12/0815 ,  G06F3/06 ,  G11C7/04 ,  G11C16/34

Abstract: A data processing device including a processor and a memory interface, the processor being configured to control the refreshing of a memory by the steps of: periodically forming an estimate of a current rate of decay of a memory and updating an accumulated level of decay of the memory in dependence on the estimated current rate of decay; and causing the memory interface to refresh the memory when the accumulated level of decay exceeds a predetermined threshold. The estimate may be based on a measurement of ambient temperature.