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:
Nov. 01, 1988
Filed:
Nov. 04, 1982
Applicant:
Inventor:
Tatsuhiro Koike, Hamakita, JP;
Assignee:
Nippon Gakki Seizo Kabushiki Kaisha, Hamamatsu, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09B / ;
U.S. Cl.
CPC ...
8447 / ; 84478 ;
Abstract
A musical quiz apparatus presents a question chord in sound and a trainee answers by depressing the keys of the chord constituting notes on the keyboard. The apparatus is capable of generating a plurality of different chord data respectively representing chords, and generates a question chord datum one at a time as randomly selected from among those different chord data and produces sounds of notes which constitutes a chord designated by the question chord data. When the answer is correct, points are added up and a next question chord is presented.