Patent ID: 6664903
Filing Date: 2003-12-16
Classification: H03M

Abstract:
A data compression method of reading input data from a predetermined input storage area, searching previous input data that matches the input data, generating coded data based on code generation information corresponding to the previous input data, and outputting the coded data to a predetermined output storage area, comprising the steps of:reserving a dictionary for storing input data related information related to the previous input data, and code generation information of the input data in association with each other, said dictionary comprising an element area which includes link information for linking the element area to another element area; searching the dictionary reserved; registering input data related information, related to the previous input data, and code generation information of the input data in the element area; and tracking the element area according to the link information in said dictionary searching step to search input data related information in the dictionary, which corresponds to the input data related information related to current input data, then obtaining code generation information related to the input data related information, and generating coded data based on the code generation information.