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US3553852A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for response discrimination

Assignee: Dorsett Industries Inc
•
Filing: 1968-01-24
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Granted: 1971-01-12
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Expires: 1988-01-24
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Abstract

Abstract METHOD AND APPARATUS FOR USE IN ATTENDANCE WITH TEACHING MACHINES, ORAL LECTURES OR SUCH FOR CONSTRUCTING A VERBAL RESPONSE FOR COMPARISON WITH A KNOWN OR CORRECT RESPONSE. THE METHOD UTILIZES UNIQUE DISCRIMINATION FUNCTIONS WHEREIN ALL CORRECT ANSWERS ARE ACCEPTED AS CORRECT AND A HIGH ORDER OF INCORRECT ANSWERS ARE REJECTED AS INCORRECT, THE INFREQUENT ACCEPTANCE OF AN INCORRECT ANSWER AS CORRECT BEING PRACTICALLY IMMATERIAL IN A HIGHLY PROMPTED QUESTION-ANSWER SYSTEM. THE APPARATUS UTILIZES VARIOUS BINARY SELECTION DEVICES OF GREATLY REDUCED COMPLEXITY FOR CONSTRUCTION OF A VERBAL RESPONSE, EITHER TYPEWRITTEN, ORAL OR HAND-PRINTED, THE CONSTRUCTED RESPONSE THEN BEING COMPARED WITH SELECTED BINARY CHARACTERISTICS OF A PREDETERMINED VERBAL RESPONSE WHICH REPRESENTS A CORRECT ANSWER.

Inventors

  • 👤 Loyd G Dorsett

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 22:27
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/02

Claims Analysis

Total Claims: 0
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References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1974-01-11 1974-07-13 1975-01-12 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1978-01-11 1978-07-13 1979-01-12 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1982-01-11 1982-07-13 1983-01-12 $7700.00 Window Closed / Lapsed

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