Accessing data in a compressed container through dynamic redirection

US9582513B2 · kind B2 · utility

Assignee

• MICROSOFT TECHNOLOGY LICENSING, LLC · US

Inventors

• Richard A. Pletcher · Redmond, US
• Malcolm James Smith · Bellevue, US
• Alain Gefflaut · Elmsford, US
• Alex Bendetov · Redmond, US
• Andrey Shedel · Sammamish, US
• David J. Linsley · Seattle, US
• Aaron Farmer · Seattle, US
• James A. Holmes · Sammamish, US
• Troy E. Shaw · Redmond, US
• Emily N. Wilson · Seattle, US
• Innokentiy Basmov · Redmond, US
• Michael Grass · Hanstedt, DE
• Alex M. Semenko · Issaquah, US
• Scott D. Anderson · Seattle, US
• Kinshuman Kinshumann · Redmond, US

Key dates

• Filing date: Dec 8, 2013
• Grant date: Feb 28, 2017
• Expiry date: Nov 25, 2034

Classification

• Technology area (CPC G): Physics
• CPC primary: G06F16/188
• WIPO field: Computer technology
• WIPO sector: Electrical engineering

Abstract

Embodiments of the disclosure provide access to data in a compressed container through dynamic redirection, without storing decompressed data in persistent memory. The compressed container is stored in a first portion of memory. User data and reference files, with redirect pointers, for accessing corresponding files in the compressed container are stored in a second portion of memory. A command to access data is detected by a computing device. The redirect pointer in the reference file associated with the command redirects access to the corresponding compressed version of data stored in the compressed container. The corresponding accessed compressed version of data is decompressed on the fly and provided in response to the command without storing the decompressed data in persistent memory. Some embodiments provide integrity protection to validate the data coming from the compressed container.