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US3133266A Expired / Lapsed US ⏱️ 0.0 years remaining

Automatic recognition of handwriting

Assignee: AT&T Inc
•
Filing: 1960-06-14
•
Granted: 1964-05-12
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Expires: 1980-06-14
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Abstract

No abstract record available.

Inventors

  • 👤 Lawrence S Frishkopf

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 02:20
CPC Classifications
G; G06; G06V; G06V10/00; G06V10/10; G06V10/17

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 147 words
IN APPARATUS FOR READING AND CLASSIFYING ENTIRE WORDS HANDWRITTEN IN CURSIVE SCRIPT, MEANS FOR GENERATING COORDINATE SIGNALS PROPORTIONAL AT EACH INSTANT TO THE COORDINATES OF POSITION OF A WRITING INSTRUMENT AS IT IS MOVED TO WRITE A WORD, MEANS RESPONSIVE TO SAID GENERATED COORDINATE SIGNALS FOR DETECTING SIGNAL EXTREMALS IN EACH OF TWO COORDINATE DIRECTIONS, MEANS FOR ENCODING THE COORDINATES OF POSITION AND INSTANTS OF OCCURENCE OF ALL OF SAID DETECTED EXTERMALS, MEANS FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE SIGNS OF THE DIFFERENCES BETWEEN SUCCESSIVE EXTREMALS, MEANS FOR ENCODING SAID REPRESENTATIVE SIGNALS, MEANS FOR STORING SAID ENCODED EXTREMAL SIGNALS AND SAID ENCODED REPRESENTATIVE SIGNALS TO PRODUCE AN ORDERED LISTING OF WORD CHARACTERISTICS, MEANS FOR PREREGISTERING AN ORDERED LISTING OF TYPICAL ENCODED EXTREMALS AND ENCODED REPRESENTATIVE SIGNALS OF EACH OF A PLURALITY OF WORDS, AND MEANS OPERABLY RESPONSIVE TO SAID PREREGISTERED LISTINGS FOR CLASSIFYING SAID WRITTEN WORD.
Claim 2
Dependent Claim 147 words
IN APPARATUS FOR READING AND CLASSIFYING ENTIRE WORDS HANDWRITTEN IN CURSIVE SCRIPT, MEANS FOR GENERATING COORDINATE SIGNALS PROPORTIONAL AT EACH INSTANT TO THE COORDINATES OF POSITION OF A WRITING INSTRUMENT AS IT IS MOVED TO WRITE A WORD, MEANS RESPONSIVE TO SAID GENERATED COORDINATE SIGNALS FOR DETECTING SIGNAL EXTREMALS IN EACH OF TWO COORDINATE DIRECTIONS, MEANS FOR ENCODING THE COORDINATES OF POSITION AND INSTANTS OF OCCURENCE OF ALL OF SAID DETECTED EXTERMALS, MEANS FOR DEVELOPING A SIGNAL REPRESENTATIVE OF THE SIGNS OF THE DIFFERENCES BETWEEN SUCCESSIVE EXTREMALS, MEANS FOR ENCODING SAID REPRESENTATIVE SIGNALS, MEANS FOR STORING SAID ENCODED EXTREMAL SIGNALS AND SAID ENCODED REPRESENTATIVE SIGNALS TO PRODUCE AN ORDERED LISTING OF WORD CHARACTERISTICS, MEANS FOR PREREGISTERING AN ORDERED LISTING OF TYPICAL ENCODED EXTREMALS AND ENCODED REPRESENTATIVE SIGNALS OF EACH OF A PLURALITY OF WORDS, AND MEANS OPERABLY RESPONSIVE TO SAID PREREGISTERED LISTINGS FOR CLASSIFYING SAID WRITTEN WORD.

References Cited (Backward Citations)

US2928074A Cited
US2889535A Cited
GB846722A Cited
US2905927A Cited
US2907824A Cited
US3050711A Cited
US3016421A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1967-05-12 1967-11-11 1968-05-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1971-05-12 1971-11-11 1972-05-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1975-05-12 1975-11-11 1976-05-12 $7700.00 Window Closed / Lapsed

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