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US3718984A Expired / Lapsed US ⏱️ 0.0 years remaining

Free-standing audio-visual-response teaching system

Assignee: General Electric Co
•
Filing: 1971-04-01
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Granted: 1973-03-06
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Expires: 1991-04-01
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Abstract

Abstract A PROGRAMMING COMPONENT GENERATES SELF-CLOCKING DIGITAL CONTROL SIGNALS AND RECORDS THEM ON ONE TRACK OF A MAGNETIC TAPE AND RECORDS ANALOG SIGNALS ON ANOTHER TRACK FOR PROVIDING AUDIO INFORMATION TO THE STUDENT. THE TAPE IS THEN UTILIZED IN A RESPONSE COMPONENT WHICH RESPONDS TO THE DIGITAL CONTROL SIGNALS TO PROVIDE AUTOMATIC OPERATIONS SUCH AS REMOTELY OPERATING ONE OR TWO VISUAL DISPLAY DEVICES (I.E., A SLIDE PROJECTOR), FOR PRESENTING TO THE STUDENT MATERIAL IN LECTURE FORM AND, OR, MULTIPLE-CHOICE PROBLEMS. THE RESPONSE COMPONENT INCLUDES ELECTRONIC LOGIC CIRCUITRY FOR DETERMING THE CORRCTNESS OF THE STUDENT''S RESPONSE TO THE PROBLEMS. A PUSHBOTTOM ASSEMBLY ON THE RESPONSE COMPONENT PERMITS THE STUDENT TO ADVANCE THE TAPE IN ACCORDANCE WITH THE TAPE RECORDED PROGRAM AND TO INDICATE HIS ANSWERS TO THE PROBLEMS. THE RESPONSE COMPONENT IS INTENDED FOR INDIVIDUALIZED INSTRUCTIONS WITH TOTALLING OF THE STUDENT''S RIGHT AND WRONG RESPONSES BEING DONE ON COUNTERS MOUNTED ON THE RESPONSE COMPONENT. D R A W I N G

Inventors

  • 👤 T Hewitt

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-28 23:25
CPC Classifications
G; G09; G09B; G09B7/00; G09B7/06

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) 1976-03-05 1976-09-04 1977-03-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-03-05 1980-09-04 1981-03-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-03-05 1984-09-04 1985-03-06 $7700.00 Window Closed / Lapsed

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