The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 1983
Filed:
Jun. 22, 1981
Christian J Deforeit, Trossingen, DE;
Matth. Hohner AG, Trossingen, DE;
Abstract
The type and root of a chord played on a chromatically tuned musical instrument are determined by assigning sequential numerical values to the notes of the chromatic scale and, when a chord is played, calculating the intervals between the individual notes comprising the chord arranged in numerical order. In a preferred embodiment the smallest interval and the interval immediately following the smallest interval are compared with prerecorded interval values commensurate with all defined chord types to identify the type of chord played. The recorded information also contains a root value for each defined chord and these root values are employed, along with the starting note of the smallest interval, to determine chord root.
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