The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 12, 2011
Filed:
May. 12, 2009
Jian Gui, Beijing, CN;
Hong Jie Nie, Beijing, CN;
John Turek, South Nyack, NY (US);
Wei Ying Yu, Beijing, CN;
Yong Zheng, Beijing, CN;
Jian Gui, Beijing, CN;
Hong Jie Nie, Beijing, CN;
John Turek, South Nyack, NY (US);
Wei Ying Yu, Beijing, CN;
Yong Zheng, Beijing, CN;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method and system for decompressing a compressed file is disclosed in this invention, the method comprising: reading a compressed data block from the compressed file; decompressing the compressed data block; outputting the decompressed data for storage into a decompressed file; deleting the compressed data block that was decompressed from the compressed file. The proposed method and system in this invention can reduce the unnecessary repeated data between compressed data and decompressed data. The storage space requirement will be reduced during decompression, and the existing compression/decompression algorithms need not be changed by using this invention. Thus, this invention is easy to be integrated into existing compression/decompression tools.