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. 25, 1985
Filed:
Jan. 04, 1982
Richard H Boivie, Middletown, NJ (US);
AT&T Bell Laboratories, Murray Hill, NJ (US);
Abstract
There is disclosed an algorithm for electronically recognizing characters. The algorithm relies upon the establishment of a particular standard 'name' for each character. A name is a sequence of 'u's, 'd's, 'l's, 'r's, and '-'s that describes the path that results when the character is traversed in a particular way. The name contains a 'u' when the path goes up, a 'd' when it goes down and 'l's and 'r's when it goes left and right respectively. '-'s are used to retrace the path so that a (second or third) branch can be attached to an earlier point in the path. The algorithm constructs a name for an unknown character, and then, using a unique directory lookup algorithm, determines which standard name is closest to the derived name. The algorithm contains a series of rules for traversing characters to minimize ambiguities while still allowing a great deal of latitude in the recognition process. Under the procedure disclosed, no prior knowledge is required pertaining to the actual font or design of the character to be recognized.