Apparatus for editing documents adapted to reduce a process time of refreshing the documents
Patent 5287443 Issued on February 15, 1994. Estimated Expiration Date: 
May 21, 2011. 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.
May 21, 2011. 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 ReferencesImage editing apparatus Word processor for automatically defining the position, size, and form of a symbol and formula Electronic image information filing apparatus displaying editing corrections Patent #: 5150458 InventorsApplicationNo. 705038 filed on 05/21/1991US Classes:715/522, Format information in separate file715/531, Text715/539Block controlExaminersPrimary: Harkcom, Gary V.Assistant: Feild, Joseph H. Attorney, Agent or FirmInternational ClassG06F 015/62Foreign Application Priority Data1990-05-24 JPAbstractAn apparatus for editing documents input from an input device, capable of reducing a process time of renewing the documents to be displayed on a display device and capable of increasing a displaying speed of the renewed documents during an editing process includes a document storing unit for storing document data, a text-layout information storing unit for storing text-layout information separately in accordance with a preceding time and a succeeding time with respect to an editing operation, the text-layout information indicating positions of the document data on the display device at a time when the document data are displaying, a display image storing unit for storing image data, the image data being used for displaying the document data stored in the document storing unit on the display device in accordance with the text-layout information in the preceding time stored in the text-layout information storing unit, an editing unit for producing the text-layout information in the succeeding time from the text-layout information in the preceding time stored in the text-layout information storing unit and the document data stored in the storing unit in accordance with an indication input from the input device, and a processing unit for renewing the image data stored in the display image storing unit in accordance with a process of redisplaying characters and a process of transmitting the image data.Other References
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