Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2005-02-15
2005-02-15
Kim, Matthew (Department: 2186)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
Reexamination Certificate
active
06857042
ABSTRACT:
A method for refreshing memory cells in a dynamic memory includes dividing the information stored therein at a given time into information to be maintained and information not requiring maintenance, wherein at least some of such memory cells containing information not requiring maintenance are left unrefreshed. In the method application programs are executed. The memory cells of the dynamic memory are divided into two or more blocks which can be refreshed irrespective of each other. Information on the location of each application program to be executed is stored, as well as on the quantity of memory allocated by each application program to be executed. In the method it is further determined on the basis of said stored information which of said memory blocks contains information requiring maintenance, wherein other memory blocks remains unrefreshed. The invention also relates to an electronic device.
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Aho Ari
Floman Matti
Lipponen Markku
Siltanen Mikko
Anderson Matthew D.
Kim Matthew
Nokia Mobile Phones Ltd.
Perman & Green LLP
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