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:
Jan. 27, 2015
Filed:
Jun. 23, 2011
Adam Chester Treat, Jamaica Plain, MA (US);
Eli Joshua Fidler, Toronto, CA;
Antonio Gomes Araujo Netto, Toronto, CA;
Adam Chester Treat, Jamaica Plain, MA (US);
Eli Joshua Fidler, Toronto, CA;
Antonio Gomes Araujo Netto, Toronto, CA;
BlackBerry Limited, Waterloo, Ontario, CA;
Abstract
A device, system and method are provided for managing memory for rendering webpages and other structured documents that contain multiple regions. A backing store is created in memory for storing rendered document content. A main region of the structured document is rendered for display, divided into a set of tiles, and stored in the backing store. A subregion of the document is rendered and stored as tiles in the same backing store as well. At least a portion of the tiles for the main region and subregion intersecting with corresponding viewports are outputted to a display. When an active one of the viewports is changed and additional content of the document is to be rendered for display, tiles in the backing store used to store rendered but undisplayed data for the inactive viewport are released to store new rendered content for the active viewport.