Database accessing method and apparatus
First Claim
1. Apparatus for accessing a database having database records comprising data-compressed image data, said apparatus comprising:
- (i) a database server apparatus operable to respond to a database query by returning database records to the client process matching the criteria specified by said database query; and
(ii) a client process for issuing database queries to said database server and for displaying information indicative of said database records returned by said database server apparatus;
in which;
(i) said client process has a data decompressor for decompressing data-compressed images received from said database server and a data cache for storing decompressed image data representing those images;
(ii) said client process is operable to retrieve, decompress, display and store in said data cache a data-compressed subset of said images required for display relating to said database records returned by said database server; and
(iii) said client process is then operable to retrieve, decompress and store in said data cache data-compressed images relating to said database records returned by said database server but not currently required for display.
1 Assignment
0 Petitions
Accused Products
Abstract
Apparatus for accessing a database having database records comprising data-compressed image data comprises a database server apparatus operable to respond to a database query by returning database records to the client process matching the criteria specified by the database query; and a client process for issuing database queries to the database server and for displaying information indicative of the database records returned by the database server apparatus; in which: the client process has a data decompressor for decompressing data-compressed images received from the database server and a data cache for storing decompressed image data representing those images; the client process is operable to retrieve, decompress, display and store in the data cache data-compressed a subset of the images relating to the database records returned by the database server; and the client process is then operable to retrieve, decompress and store in the data cache data-compressed images relating to the database records returned by the database server but not currently required for display.
42 Citations
4 Claims
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1. Apparatus for accessing a database having database records comprising data-compressed image data, said apparatus comprising:
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(i) a database server apparatus operable to respond to a database query by returning database records to the client process matching the criteria specified by said database query; and (ii) a client process for issuing database queries to said database server and for displaying information indicative of said database records returned by said database server apparatus; in which; (i) said client process has a data decompressor for decompressing data-compressed images received from said database server and a data cache for storing decompressed image data representing those images; (ii) said client process is operable to retrieve, decompress, display and store in said data cache a data-compressed subset of said images required for display relating to said database records returned by said database server; and (iii) said client process is then operable to retrieve, decompress and store in said data cache data-compressed images relating to said database records returned by said database server but not currently required for display. - View Dependent Claims (2, 3, 4)
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Specification