Music – Instruments
Patent
1977-06-14
1980-10-28
Miska, Vit W.
Music
Instruments
84 103, 84 124, 84DIG22, 179 1SA, G10H 100, G10F 100, G10H 102, H04M 100
Patent
active
042300126
ABSTRACT:
Methods and apparatus are disclosed which are utilized in providing a musical instrument useful for composing, teaching, learning and performing music. The instrument includes a pitch detector which responds to an applied input signal to produce and octave code representing the octave in which the input signal is located and a note code representing the note which is closest in pitch to the input signal. The octave and note codes are applied to display means which indicate the octave and note nearest in pitch to the input signal. The octave and note codes are also applied to an automatic pitch generator wherein they control the dividing down of a high frequency clock signal to produce a true pitch signal having the pitch corresponding to the octave and note codes. The automatic pitch generator also has provision for selectively combining octave and note transpose codes with the octave and note codes to achieve any desired degree of transposition of the true pitch signal. The transposed true pitch signal is applied to a tracking chord generator which internally produces two complete octaves of notes, with the lowest note locked in pitch to the transposed true pitch signal. The chord generator also includes a keyboard which permits the operator to select the notes which are to be included in the harmonic accompaniment produced by the chord generator. However, the actual notes produced, vary in pitch to permit the lowest note to track the transposed true pitch signal. The transposed true pitch signal and the accompaniment from the tracking chord generator combined to produce a composite output signal for the musical instrument.
REFERENCES:
patent: 3429976 (1969-02-01), Tomcik
patent: 3766818 (1973-10-01), Prohofsky
patent: 3881390 (1975-05-01), Gullickson
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patent: 4024789 (1977-05-01), Humphrey et al.
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patent: 4072078 (1978-02-01), Shallenberger et al.
patent: 4119005 (1978-10-01), Kondo et al.
patent: 4122751 (1978-10-01), Calvin
Bommersbach Wolfgang
Dean, Jr. Robert A.
Bach Laboratories, Inc.
Miska Vit W.
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