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:
Jul. 13, 2010
Filed:
Jul. 05, 2007
Ambikeshwar Raj Merchia, Cupertino, CA (US);
Donovan Schneider, San Francisco, CA (US);
Venkatesan Ramachandran, Fremont, CA (US);
Sunil Nagaraj, Sunnyvale, CA (US);
Ambikeshwar Raj Merchia, Cupertino, CA (US);
Donovan Schneider, San Francisco, CA (US);
Venkatesan Ramachandran, Fremont, CA (US);
Sunil Nagaraj, Sunnyvale, CA (US);
Yahoo! Inc., Sunnyvale, CA (US);
Abstract
The present invention is directed towards systems and methods for generating a compressed data file providing access to one or more selected portions of data contained within the data file. The file is partitioned into one or more chunks, a given chunk comprising a separate unit of data representing a subset of data from the file. The one or more chunks are compressed through use of a compression algorithm, and the one or more chunks are combined to form a compressed file. Metadata is also generated that indicates a chunk offset of a given chunk, thereby allowing direct parallel access to one or more given chunks. Similarly, legacy applications may ignore the chunk structure in the compressed file and access the file according to techniques know in the art, thereby preserving backwards compatibility with such legacy applications.