Patent ID: 6111566
Filing Date: 2000-08-29
Classification: H04N,Y10S

Abstract:
A data processing apparatus comprising:a data receiving unit receiving compressed image data via a communication path;a storage area partitioned intoa compressed data hold unit holding the compressed image data received by said data receiving unit, anda decompressed data hold unit holding decompressed data;a decompression processing unit decompressing the compressed image data held by said compressed data hold unit to produce the decompressed data held by said decompressed data hold unit;a data processing unit performing an image display process using specified decompressed image data related to the image display process while other decompressed image data relating to the image display process are prepared in said decompressed data hold unit, by using corresponding decompressed image data when said decompressed data hold unit holds the corresponding decompressed image data, and by using corresponding compressed image data when the corresponding decompressed image data is not held by said decompressed data hold unit and said compressed data hold unit holds the corresponding compressed image data; anda setting unit setting storage capacities of said compressed data hold unit and said decompressed data hold unit with a ratio of the storage capacity of said compressed data hold unit to the storage capacity of the decompressed data hold unit being greater than one when the storage capacity of the compressed data is in preference to a speed of the image display process and being less than one when the speed of the image display process is in preference to the storage capacity of the compressed data.