Patent ID: 6857042
Filing Date: 2005-02-15
Classification: G11C

Abstract:
1. A method for refreshing memory cells in a dynamic memory comprising: executing application programs under control of an operating system; allocating the memory cells successively in the dynamic memory for the application programs; using the memory cells for storing the application programs; conducting refreshing to maintain the application programs in the memory cells; dividing the application programs stored in the memory cells at a given time into application programs to be maintained and application programs. not requiring maintenance, wherein at least some of such memory cells which contain application programs not requiring maintenance, remain unrefreshed; dividing the memory cells of the dynamic memory into two or more blocks which can be refreshed irrespective of each other; storing information on the location of each application program to be executed and information on the quantity of memory allocated for each application program to be executed; and utilizing the operating system to determine on the basis of said stored information which of said memory blocks contains information requiring maintenance, wherein other memory blocks remain unrefreshed.