The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1987
Filed:
Jun. 12, 1986
John H Riseman, Dover, MA (US);
Alice M D'Entremont, Boston, MA (US);
H Philip Peterson, Woburn, MA (US);
Rise Technology Inc., Cambridge, MA (US);
Abstract
A novel electronic printing system for operating both a linear-raster electro-optical display device and a linear-raster type printer, which system is capable of integrating alphanumeric and/or graphics information and gray-scale or picture information, all on a single data base from which one may either (or both) print the data out on the printer as images, or display the data on the device as images. The system includes look-up tables storing respective first and second subsets of a set of substantially disjoint multiple-bit binary index numbers. Each of the numbers of the first subset represent information corresponding to a respective gray-scale density level rendered as a respective matrix of points forming a corresponding gray-scale cell to be printed by the printer. Each of the numbers of the second subset represent information corresponding to a unique shape of an edge rendered as a respective matrix of points to be printed by the printer. Means are provided for translating an image of the information to be printed and/or displayed into an array of index numbers selected from the subsets, and for storing that array. Conversion means are provided for converting at least a major portion of the array into electrical signals for forming a display of substantially the desired image on the display device and for converting at least a major portion of the array into electrical signals for forming matrices for assemblage as the image in printed form on the printer.