METHOD FOR RECOGNIZING HANDWRITTEN CHARACTERS USING SHAPE AND CONTEXT ANALYSIS

Patent №

US 5,151,950

Granted

1992-09-29

Filed 1990

Owner

GO CORPORATION, A CORP. OF CA

+1 more

Lab

AI components

5

ml · nlp · vision · speech · kr

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

07607125

An improved pattern recognition system, using an improved method for merging low-level recognition information with auxiliary contextual information such as a Deterministic Finite Automaton (DFA). The system comprises a low-level shape recognizer for handwriting input, an English Language dictionary organized as a Trie (a special type of DFA), and software to merge the results of the two. An input of digitized handwriting strokes is translated into characters using the shape recognizer and the Trie in tandem, allowing the system to reject nonsense translations at the earliest possible stage of the process and without the overhead traversing the trie from the top with each translation.

AI classification

Natural language1.00
Vision1.00
Machine learning1.00
Speech1.00
Knowledge representation0.95
AI hardware0.15
Planning0.06
Evolutionary computation0.00

Ownership

GO CORPORATION, A CORP. OF CA

assignment · 55750030

AMERICAN TELEPHONE AND TELEGRAPH COMPANY

assignment · 69520563

Assignors

HULLENDER, GREGORY N.

On an employer assignment, the assignors are typically the inventors.

© 2026 NYSGPT2525 LLC