Cygnus Systems, Inc., the holder of the '850 patent, has asserted the patent in litigation against Google, Microsoft and Apple alleging their use of document preview icons - thumbnails - in their operating systems and browsers. If successful in this action, this patent may be asserted against other operating systems and browsers. The '850 patent claims continuation from a patent application filed June 12, 1998.
#40Method and apparatus for providing an optimized document file of multiple pages
Applies to Claims 1,16,2
Last updated: 3 months ago
Summary / Description
Summary / DescriptionA method and apparatus for providing an optimized page-based electronic document file and downloading the optimized file. An optimized document file is created from a non-optimized electronic document. Page contents are contiguously written in the optimized file and a page offset table is provided in the optimized file that includes page offset information used to locate individual pages and objects of the document. Shared objects, such as fonts, are included in the file after the page contents. When downloading the optimized file from a host, the page offset information is read early and is used to download a specific page requested by the user without downloading other pages in the document. A viewer preferably downloads a first portion of the requested page, while all remaining portions of the requested page are located and requested by a finder process using the page offset table. The requested page can thus be downloaded with only one connection to the host. Shared objects can be downloaded interleaved between portions of the page contents that reference the shared objects. The requested page is displayed to the user on an output display device.
 
Basic Information
Type of Prior ArtIssued Patents - US
 
CountryUnited States of America
 
Patent/Application #5781785
 
Kind CodeUnited States (US) - United STATES Patent - A
 
Patentee NameAdobe Systems, Inc.
 
Relevant Pages, Columns, or LinesBrief Description of the Drawi
 
URLhttp://patft.uspto.gov/netacgi/...
 
Publication DateSeptember 26, 1995
 
Additional InformationDate listed is filing date
 
Notes / To Do
Notes
 
Excerpt
FIG. 2b is a diagrammatic illustration of the display screen of the viewer displaying a page from a portable electronic document and a " thumbnails " window;
Relevance
Claims
Application generated graphical icon

The method of Claim 1, wherein capturing a graphical representation is initiated by a user input command while the application manipulating the one or more computer files are active.
Relevance
Anticipates generating thumbnails automatically while the application (viewer) is manipulating the file (downloading).
Anticipates generating thumbnails automatically while the application (viewer) is manipulating the file (downloading).
Claim Chart
All
Graphical representation of files and method for accessing

A method of accessing one or more computer files via a graphical icon, comprising the steps of: capturing automatically one or more graphical representations of one or more portions of information content of one or more computer files while an application is manipulating the one or more computer files; creating automatically an icon including selected portions of the captured one or more graphical representations of the information content of the one or more computer files wherein the icon graphically depicts at least a portion of the information content from the one or more computer files and wherein the icon is created while the application was manipulating the icon's corresponding one or more computer files and includes selected portions of the captured one or more graphical representations of the information content; linking the icon to the application and to the one or more computer files based on the ability of the application to manipulate the information content of the one or more computer files corresponding to the icon; storing the icon in a memory; displaying the icon in a window on a display screen; invoking the application for manipulating the information content of the one or more computer files upon selection of the icon by accessing the more or more computer files by reference to an underlying file system corresponding to the icon and opening the one or more computer files within the application.
Relevance
Anticipates generating thumbnails automatically while the application (viewer) is manipulating the file (downloading).
Anticipates generating thumbnails automatically while the application (viewer) is manipulating the file (downloading).
Claim Chart
All
The invention with a plurality of icons and relationships

A method for providing a user interface for accessing a file based on a corresponding icon comprising: storing a plurality of icons in a memory along with a corresponding plurality of references to an underlying file system for storage information for a plurality of files, each icon having an appearance substantially depicting information content from its corresponding file, wherein the plurality of icons were created by capturing automatically one or more graphical representations of one or more portions of information content of an icon's corresponding file while an application was manipulating an icon's corresponding file and include selected portions of the captured one or more graphical representations of the information content; linking an application to each icon based utility on the ability of the application to manipulate the information content of the file corresponding to the icon; providing a window on a display screen for displaying the plurality of icons; invoking the application for manipulating the information content of the file corresponding to the selected icon upon selection of an icon from the plurality of icons in the window; accessing the file designated by the reference to the underlying file system corresponding to the selected icon; and opening the accessed file into the corresponding application.
Relevance
Anticipates generating thumbnails automatically while the application (viewer) is manipulating the file (downloading).
Anticipates generating thumbnails automatically while the application (viewer) is manipulating the file (downloading).
Claim Chart
All