公开(公告)号：US5519663A

公开(公告)日：1996-05-21

申请号：US314158

申请日：1994-09-28

Applicant: James D. Harper, Jr. ,  Larry J. Cole

Inventor： James D. Harper, Jr. ,  Larry J. Cole

IPC: G06F1/26 ,  G06F1/28 ,  G06F1/30 ,  G06F12/16 ,  G11C5/14 ,  G11C13/00

CPC classification number: G11C5/141

Abstract: In a preservation system for a volatile memory associated with a nonvolatile memory, an energy storage portion accumulates energy while power is provided normally. When a power outage occurs, the stored energy is supplied to the volatile memory. Enough backup power is stored to accommodate the vast majority of unintentional interruptions of power. Eventually, after removal of external power, when the backup power decreases to a predetermined amount, data in the volatile memory is transferred to the nonvolatile memory. The preferred use for the preservation system is in an environment with vibration and/or power switching transients that affect the supply of power, such as an aircraft.

Abstract translation: 在与非易失性存储器相关联的易失性存储器的保存系统中，能量存储部分在正常供电的同时积累能量。 当发生停电时，将存储的能量提供给易失性存储器。 存储足够的备用电源以适应绝大多数无意中断的电源。 最后，在去除外部电源之后，当备用功率降低到预定量时，易失性存储器中的数据被传送到非易失性存储器。 保护系统的优选用途是在影响电力供应的振动和/或功率切换瞬变的环境中，例如飞行器。