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:
Jun. 11, 1991
Filed:
Sep. 08, 1989
Applicant:
Inventor:
Wayne L Stahnke, Los Angeles, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10H / ; G10H / ;
U.S. Cl.
CPC ...
84 21 ; 84626 ; 84633 ; 84462 ;
Abstract
A reproducing piano is provided which is capable of reproducing the notes of a chord or a sequence of multiple intensity notes within several groups of common intensity. This is accomplished by sorting the notes into a plurality of groups and then assigning intensity levels to the various groups so that notes within a group will be played at the same intensity. A limited number of solenoid driver circuits are multiplexed among the solenoids according to the grouping of notes, thereby providing faithful reproduction of the music, but at a lower cost than by individual control of each key.