Memory management method and apparatus for use in an open...

Details Memory management method and apparatus for use in an open... Memory management method and apparatus for use in an open...

2005-06-28

2005-06-28

Moazzami, Nasser (Department: 2187)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C707S793000

Reexamination Certificate

active

06912639

ABSTRACT:
A memory management apparatus for use in an open geographic information system includes a plurality of layers, each layer requiring a layer component, a disk buffer management component, a memory buffer management component and a spatial index management component; a layer collection component having a plurality of layer components, each layer component containing responsibility of managing all of the spatial data included in one layer accessed thereto through a data provider component; and a total memory management component. In the system the total memory management component manages totally a memory buffer to spatial data included in one or more layers, allocates a corresponding memory if each of memory buffer management components requests a memory buffer and frees a memory of a predetermined memory buffer management component when an available memory lacks.

REFERENCES:
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patent: 5987476 (1999-11-01), Imai et al.
patent: 6353820 (2002-03-01), Edwards et al.
Michael J. Franklin, et al.; Local Disk Caching for Client-Server Database Systems; Proceedings of the 19thVLDB Conference; Dublin, Ireland, 1993; pp. 641-654.

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