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:
Jan. 10, 1995
Filed:
Sep. 21, 1992
Karl E Thorndike, Knoxville, TN (US);
Joseph A Vrba, Clinton, TN (US);
FuziWare, Inc., Knoxville, TN (US);
Abstract
A data processing system includes a memory with instructions and data stored therein. A fuzzy spreadsheet is stored in memory and has a plurality of cells, preferably arranged in columns and rows. The processor, stored instructions and stored data comprise a controller that receives input data and stores representations in cells. These representations include representations of fuzzy values. Operations, such as arithmetic operations, are performed on the data stored in the cells, including the fuzzy values, to produce derived representations that are stored in the cells and may be fuzzy values or crisp numbers or text. To facilitate a user's appreciation of a particular fuzzy number, the spreadsheet selectively simultaneously displays two representations of a fuzzy value, namely, a centroid and a graph. Also, the processor converts crisp numbers to fuzzy numbers by a procedure whereby a gallery of graphs stored in memory is displayed and, in response to user commands, at least three crisp numbers are associated with the graph. The processor also defuzzifies numbers by replacing a representation of a fuzzy number in a cell of the spreadsheet with a centroid.