Generating and storing electronic fonts
Patent 4594674 Issued on June 10, 1986. Estimated Expiration Date: 
June 10, 2003. 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.
June 10, 2003. 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 ReferencesDigital display composition system Computer typesetting Flexible text and image generator for a raster printer Method and apparatus for arranging segmented character groups in a digital typesetter Font selection and compression for printer subsystem Character set expansion Patent #: 4359286 InventorsApplicationNo. 06/467973 filed on 02/18/1983US Classes:345/471, Alteration of stored font715/542Font selectionExaminersPrimary: Shaw, Gareth D.Assistant: Mills, John G. Attorney, Agent or FirmInternational ClassesG06F 17/21 (20060101)G06K 15/00 (20060101) G09G 5/24 (20060101) AbstractA large plurality of electronically-stored fonts are managed and selected for use in a particular presentation (printing, display) of a document represented by electrical signals by either an explicit or implicit method. A new font by either selecting a completely defined font or by selecting predetermined characteristics of font graphics, such as italics, bold, point size, and the like which enable an implicit selection of a completely defined font. Such defined characteristics are interpreted by an automatic machine to complete font definitions for use by a document presentation device. A begin font command can specify a plurality of internal fonts with the order of specification indicating priority of selection for use in document presentation. Whether or not a specified internal font results in a defined font being activated is selectable by font definitions embedded with a received-text-data stream representing text/graphics to be presented. Such combination yields a presentation device and font independency to the unformatted input-text-data stream.Other References
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