Indicator apparatus for indicating notes emitted by means of a musical instrument
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United States of America Patent
Stats
-
Mar 6, 1984
Grant Date -
N/A
app pub date -
Aug 24, 1981
filing date -
Aug 24, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The sound to be identified is converted into an electrical signal which is applied to an amplifier (11), a filtering circuit (13) and a calculation device (20); the calculation device comprises a microprocessor (21) and associated memories (22,23) comprising a table of the identifiable notes and octaves, so as to work out a representative value of the frequency of the sound to be identified, to control the reading in the table of notes (23a) in relation to the said worked out value and so as to control the display of the note read on display means (27) connected to the calculation device (20).
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