Teaching apparatus for keyboard instrument
Abstract
Abstract THIS APPLICATION DISCLOSES TEACHING APPARATUS FOR USE WITH A KEYBOARD INSTRUMENT, THE APPARATUS INCLUDING A VISUAL DISPLAY SUCH AS A SLIDE PROJECTOR ALONG WITH A TAPE PLAYBACK, THE TAPE BEING AT LEAST TWO CHANNELS OF RECORDED INFORMATION SO THAT THE AUDIO PRESENTED TO THE STUDENT MAY BE SWITCHED DEPENDING UPON THE STUDENT''S ANSWERS TO QUESTIONS. THE CORRECT ANSWERS TO THE QUESTIONS ARE CONTAINED IN CODED LIGHT PATTERNS ON THE PHOTOGRAPHIC SLIDES, THESE PATTERNS FALLING ON PHOTOCELLS ADJACENT THE VISUAL DISPLAY SCREEN. A KEYBOARD LIGHT STRIP IS POSITIONED ABOVE THE KEYBOARD OF THE MUSICAL INSTRUMENT, AND THE LIGHTS ARE SELECTIVELY ACTUATED BY AN INSUTRUCTOR''S KEYBOARD. ADJACENT THE VISUAL DISPLAY, A GRAPHIC KEYBOARD IS PROVIDED WHICH CONTAINS LAMPS WHICH MAY BE SELECTIVELY ACTUATED BY THE INSTRUCTOR''S KEYBOARD OR BY A PROGRAMMED STEPPING SWITCH.
Inventors
- 👤 Tom W Decker
Bibliographic Details
Claims Analysis
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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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |