Patent ID: 6236755
Filing Date: 2001-05-22
Classification: G06K

Abstract:
A method for developing one page of data to be developed into image data by using a first memory means for storing a segment of image data in a compressed form and a second memory means for storing a segment of image data in an uncompressed form, said method comprising the steps of:(a) determining whether the segment of uncompressed image data stored in the second memory means is to be compressed based on to which segment a portion of the data to be developed coincides;(b) when the segment of uncompressed image data stored in the second memory means is to be compressed, compressing the segment of uncompressed image data and storing the resulting compressed image data in the first memory means;(c) when the segment of compressed image data stored in the first memory means is the segment to which the portion of the data to be developed coincides, and when the segment of uncompressed image data stored in the second memory means is not the segment to which the portion of the data to be developed coincides, expanding the segment of compressed image data and storing the resulting expanded image data in the second memory means; and(d) developing the portion of the data to be developed into the second memory means which stores the resulting expanded image data, which is the segment of image data to which the portion of the data to be developed coincides.