Patent US3744368A successfully refreshed from Google Patents.
US3744368A
Expired / Lapsed
US
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Music teaching device
Assignee: Individual
•
Filing: 1972-08-10
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Granted: 1973-07-10
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Expires: 1992-08-10
Abstract
Abstract A music teaching device includes an instructor''s keyboard and a number of student boards. The keys of the instructor''s keyboard each have three positions, a normal position, a fully depressed position and an intermediate position and each student board includes a pushbutton switch corresponding to each key on the instructor''s keyboard. When any instructor''s key or keys is depressed a circuit is completed causing a tone or tones corresponding to such key or keys to sound over a speaker and when a depressed key is then released it assumes the intermediate position in which the speaker no longer sounds. The keys which are in an intermediate position may not be released except manually or until another key is depressed. When an instructor''s key is either fully depressed or in an intermediate position, circuits are made so that actuation of a corresponding student''s pushbutton will cause the corresponding tone to sound in the student''s earphone. If a student depressed an incorrect pushbutton, an error lamp or indicator will light to apprise him of this fact and no tone will sound in the earphone. At the same tim, an error signal lamp corresponding to the student''s board will light at the instructor''s position.
Inventors
- 👤 C Lady
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:00
CPC Classifications
G; G09; G09B; G09B15/00; G10; G10G; G10G3/00; G10G3/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
197 words
A music teaching device comprising, in combination: an instructor''s keyboard having a plurality of manually depressible keys thereon corresponding to at least a portion of a piano keyboard; at least one student board having indicia thereon simulating at least one of the musical clefs encompassed by the instructor''s keyboard and having manually depressible student selection devices corresponding to all of the notes of the lines and spaces of such musical clef; tone generator means for each key of the instructor''s keyboard; transducer means for sounding selected tones of said tone generator means; each key of said instructor''s keyboard having switch means associated therewith, each switch means being responsive to fully depressed position of an associated key to connect an associated tone generator means to said transducer means and sound the tone associated with such key through said transducer means and being responsive to an intermediate position to prepare said associated tone generator means for connection to said transducer means; switch means associated with each manually depressible student selection device to complete the connection from the associated tone generator means to said transducer means through the instructor''s keyboard in response to manual depression of such student selection device.
Claim 2
Dependent Claim
197 words
A music teaching device comprising, in combination: an instructor''s keyboard having a plurality of manually depressible keys thereon corresponding to at least a portion of a piano keyboard; at least one student board having indicia thereon simulating at least one of the musical clefs encompassed by the instructor''s keyboard and having manually depressible student selection devices corresponding to all of the notes of the lines and spaces of such musical clef; tone generator means for each key of the instructor''s keyboard; transducer means for sounding selected tones of said tone generator means; each key of said instructor''s keyboard having switch means associated therewith, each switch means being responsive to fully depressed position of an associated key to connect an associated tone generator means to said transducer means and sound the tone associated with such key through said transducer means and being responsive to an intermediate position to prepare said associated tone generator means for connection to said transducer means; switch means associated with each manually depressible student selection device to complete the connection from the associated tone generator means to said transducer means through the instructor''s keyboard in response to manual depression of such student selection device.
Claim 3
Dependent Claim
35 words
A music teaching device as defined in claim 1 wherein said transducer means comprises a loudspeaker for sounding tones selected by the instructor and a student earphone for sounding tones correctly selected by the student.
Claim 4
Dependent Claim
63 words
A music teaching device as defined in claim 2 including an error indicating device located at said student board, the switch means associated with the keys of said instructor''s keyboard each having a normal position preparing energization of said indicator device, and each switch means of the student board being effective to complete energization of said indicator device when depressed for incorrect selection.
Claim 5
Dependent Claim
62 words
A music teaching as defined in claim 1 including an error indicating device located at said student board, the switch meaNs associated with the keys of said instructor''s keyboard each having a normal position preparing energization of said indicator device, and each switch means of the student board being effective to complete energization of said indicator device when depressed for incorrect selection.
Claim 6
Dependent Claim
36 words
A music teaching device according to claim 3 wherein each said tone generator means has a first distinctive sound output for connection to said loudspeaker and a second distinctive second output for connection to said earphone.
Claim 7
Dependent Claim
36 words
A music teaching device according to claim 2 wherein each said tone generator means has a first distinctive sound output for connection to said loudspeaker and a second distinctive sound output for connection to said earphone.
Claim 8
Dependent Claim
227 words
A music teaching device comprising, in combination: an instructor''s keyboard having a plurality of manually depressible keys thereon corresponding to at least a portion of a piano keyboard; at least one student board having indicia thereon simulating at least one of the musical clefs encompassed by the instructor''s keyboard and having manually depressible student selection devices corresponding to all of the notes of the lines and spaces of such musical clef; tone generator means for each key of the instructor''s keyboard; loudspeaker means for sounding tones selected by the instructor; and earphone means for sounding tones selected by a student which corresponds to tones selected by the instructor; each key of said instructor''s keyboard having first switch means associated therewith; each manually depressible student selection device having second switch means associated therewith; each first switch means having a normal position, an intermediate position and a fully depressed position; first circuit means for connecting said loudspeaker means to an associated tone generator means in response to a fully depressed position of a corresponding first switch means and second circuit means for preparing connection of said earphone means to such associated tone generator means in response to the intermediate position of such corresponding first switch means; each of said second switch means being in series with a corresponding first switch means for completing said second circuit means when actuated.
Claim 9
Dependent Claim
227 words
A music teaching device comprising, in combination: an instructor''s keyboard having a plurality of manually depressible keys thereon corresponding to at least a portion of a piano keyboard; at least one student board having indicia thereon simulating at least one of the musical clefs encompassed by the instructor''s keyboard and having manually depressible student selection devices corresponding to all of the notes of the lines and spaces of such musical clef; tone generator means for each key of the instructor''s keyboard; loudspeaker means for sounding tones selected by the instructor; and earphone means for sounding tones selected by a student which corresponds to tones selected by the instructor; each key of said instructor''s keyboard having first switch means associated therewith; each manually depressible student selection device having second switch means associated therewith; each first switch means having a normal position, an intermediate position and a fully depressed position; first circuit means for connecting said loudspeaker means to an associated tone generator means in response to a fully depressed position of a corresponding first switch means and second circuit means for preparing connection of said earphone means to such associated tone generator means in response to the intermediate position of such corresponding first switch means; each of said second switch means being in series with a corresponding first switch means for completing said second circuit means when actuated.
Claim 10
Dependent Claim
42 words
A music teaching device according to claim 7 including third circuit means including an error indicating device at the student board and completed in response to the normal position of any first switch means and actuation of a corresponding second switch means.
Claim 11
Dependent Claim
32 words
A music teaching device according to claim 7 including means for releasably holding any first switch means in its intermediate position when once actuated to its fully depressed position and then released.
Claim 12
Dependent Claim
33 words
A music teaching device according to claim 1 including means for releasably holding each switch means associated with the instructor''s keys in intermediate position when once actuated to depressed position and then released.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |