The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 2005
Filed:
May. 10, 2002
Dae-soo Cho, Busan, KR;
Kwang Soo Kim, Daejeon, KR;
Hae Ock Choi, Daejeon, KR;
Jong-hun Lee, Daejeon, KR;
Dae-Soo Cho, Busan, KR;
Kwang Soo Kim, Daejeon, KR;
Hae Ock Choi, Daejeon, KR;
Jong-Hun Lee, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
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.