Method and apparatus for selectively erasing memory to extend ba

Details Method and apparatus for selectively erasing memory to extend ba Method and apparatus for selectively erasing memory to extend ba

1994-12-01

1996-07-09

Popek, Joseph A.

Static information storage and retrieval

Powering

Conservation of power

365 63, 257922, G11C 1300

Patent

active

055351689

ABSTRACT:
Memory (120) in a device (100) that includes a power source (105) is erased when an alarm triggering event is detected. An alarm signal is provided that is used to determine whether the memory (120) has been erased since a transition from normal to low power mode. It is only when the memory (120) has not been erased since such a transition, that the memory (120) is erased, thereby providing an energy efficient erasure process.

REFERENCES:
patent: 4933898 (1990-06-01), Gilberg et al.
patent: 5185717 (1993-02-01), Mori
patent: 5249227 (1993-09-01), Bergum et al.
patent: 5301161 (1994-04-01), Landgraf et al.

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