Display system with multiple scrolling regions
February 23, 2001. 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 References 3792462 Video display system Computer assisted display processor having memory sharing by the computer and the processor Digital display data processor Electron gun control system Method for dynamically viewing image elements stored in a random access memory array Control means to provide slow scrolling positioning and spacing in a digital video display system Patent #: 4284988 InventorsAssigneeApplicationNo. 06/237316 filed on 02/23/1981US Classes:715/539, Block control345/686Memory addressingExaminersPrimary: Smith, JerryAttorney, Agent or FirmInternational ClassesG09G 5/14 (20060101)G09G 1/00 (20060101) AbstractA data display and management system includes a microprocessor whose functions are implemented by instructions in data from a directly connected main memory. A mass data storage memory is connected to the main memory and has permanently stored instructions therein for the microprocessor. A display control system which operates asynchronously with the microprocessor includes a display controller, display memory, character memory means, and a visual character attribute generator. By linking one or more row attribute bytes, or pointers, to each row of characters stored in the display memory the display controller performs character and row manipulation on a display device without transferring whole blocks of data in the display memory. Multi-region display segmentation into horizontal and vertical split regions, smooth or discrete scrolling of individual regions, and various editing functions are achieved by modifying the associated display memory pointers.Other References
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