Patent ID: 6205251
Filing Date: 2001-03-20
Classification: G06T

Abstract:
A device for decompressing compressed image data that has a line-end-code and is capable of being enlarged or contracted according to a prescribed ratio, comprising:an enlargement/contraction pre-processor for receiving compressed image data and sending out a row control signal and a row compressed data according to the line-end-code and the enlargement/contraction ratio;a compressed data buffer coupled to the enlargement/contraction pre-processor for processing the incoming row compressed data following the instructions from the row control signal, and then sending out duplicated, eliminated or unchanged row compressed data thereafter;a variable length decoder coupled to the compressed data buffer for receiving the row compressed data, decompressing the row compressed data to form a row image data and then sending out the row image data;a decompressed data buffer coupled to the variable length decoder for temporary storage of the row image data; andan enlargement/contraction post-processor coupled to the decompressed data buffer for receiving a whole line of the row image data, and then sending out after the whole line of the row image data is enlarged or contracted accordingly to the enlargement/contraction ratio.