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1. US20060112113 - Static file system differencing and updating

Office
United States of America
Application Number 11269274
Application Date 08.11.2005
Publication Number 20060112113
Publication Date 25.05.2006
Publication Kind A1
IPC
G06F 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
7Methods or arrangements for processing data by operating upon the order or content of the data handled
Applicants GU JINSHENG
MANAPETTY PREMJITH
Inventors Gu Jinsheng
Manapetty Premjith
Agents COURTNEY STANIFORD & GREGORY LLP
Priority Data 60626252 08.11.2004 US
60626292 08.11.2004 US
60626293 08.11.2004 US
Title
(EN) Static file system differencing and updating
Abstract
(EN)

Systems and methods are provided for static file system (SFS) differencing and updating. The differencing and updating includes portion-level differencing and block-level updating of units of an original image (referred to as blocks). The differencing and updating splits SFS images into portions based on block information and the image structure. A delta file is generated for each portion (portion-level differencing) of the new SFS image; the delta file includes information of differences between the portion of the new SFS image and the portion of the original SFS image to which the new SFS image portion corresponds. The delta files are transferred to a device where the target SFS image of the device is updated block-by-block using information of the delta files. The block-by-block update reconstructs all portions of the new SFS image in a device block in host device RAM and writes the reconstructed block into host device ROM.