Method and apparatus for identifying features of an image on a video display
August 27, 2007. 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 ReferencesXY Addressable and updateable compressed video refresh buffer for digital TV display System and method for painting images by synthetic color signal generation and control Microcomputer terminal system having a list mode operation for the video refresh circuit Row address linking control system for video display terminal Digitally controlled composite color video display system Light pen controlled method and equipment for evaluating fluorescent screen pictures Color control simulator for a picture reproducing machine Terminal independent color memory for a digital image display system Graphic effects generator Color convergence data processing in a CRT color display station InventorApplicationNo. 07/090112 filed on 08/27/1987US Classes:345/180, Light pen for CRT display345/163, Mouse345/22Color displayExaminersPrimary: Caldwell, Sr., John W.Assistant: Brier, Jeffery Attorney, Agent or FirmInternational ClassG06F 3/033 (20060101)AbstractA computer graphic interface allows a user to obtain descriptive information concerning a feature of a displayed image by pointing to the location of the feature. Conversely, the user may enter descriptive textual information, and the locations of responsive features are indicated. The data processing and memory storage requirements are minimized by encoding information about the image as a pixel bit map, and a color map in which the addresses or indices of the color map are correlated with the addresses or pointers to strings of descriptive information. Each color map address corresponds to a predefined set of features and descriptive information about those features. Since the pixel bit map defines a color map address for each location on the image, suitable programming of the color map can insure proper correlation of descriptive information with corresponding locations on the image. The correlation between color map addresses and the descriptive information about the features is represented most compactly by arranging or sorting the entries in the color map so that there is a correspondence between each predefined feature and a continuous range of color map addresses. Therefore, for a specified color map address, the corresponding set of features and their pointers can be found by comparing the specified color map address to the limits of the color map address ranges for the various features.Other References
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