Display system which displays motion video objects combined with other visual objects
December 20, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesGraphics clipping circuit Interactive computer-based information display system Method of producing and modifying a synthetic picture Multimedia display system Method and apparatus for displaying multiple images in overlapping windows Method for rapid windowing of display information in computer graphics Object processing for video system using slips and linked list Video signal processing Computer graphics windowing system for the display of multiple dynamic images Apparatus for receipt and display of raster scan imagery signals in relocatable windows on a video monitor InventorApplicationNo. 360122 filed on 12/20/1994US Classes:715/500.1, Synchronization of diverse media345/632Placing generated data in real sceneExaminersPrimary: Herndon, Heather R.Assistant: Vo, Cliff N. Attorney, Agent or FirmInternational ClassG06T 007/20AbstractA system for displaying motion video objects on a display screen together with other visual objects such as bit map image objects, text objects, and the like. An autonomous screen drawing process is provided whereby the motion video object is displayed directly to the screen through a clipmask. When a screen update is needed because of changes in the appearance of one of the objects on the screen, for example, by changing the size, shape or location of one the objects, the autonomous drawing process is stopped. The visual objects and the motion video objects are redrawn to the screen (or to a frame composition memory from which the screen is copied), and for each motion video object a clipmask is initialized in the location and shape of the motion video object. Every other object which overlaps the motion video object leaves its footprint on the clipmask. When all objects have been redrawn, the autonomous drawing process is restarted using the newly-derived clipmask.Other References
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