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:
May. 13, 1986
Filed:
Nov. 20, 1984
Applicant:
Inventor:
Ernst Zacharias, Trossingen, DE;
Assignee:
Matth Hohner AG, Trossingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01H / ; G10C / ;
U.S. Cl.
CPC ...
84-11 ; 84-127 ; 84DI / ;
Abstract
In a key board system for an electronic musical instrument, input signals for the instrument generated in response to key actuation have an electrical characteristic which varies as a function of the key actuation force. The foregoing results from the deflection of a mass-carrying leaf spring in response to a key stroke, the input signal being generated by a piezoelectric element mounted on the leaf spring and being deformed in response to the deflection thereof.
Zacharias, Ernst. (1986). Key board system for an electronic musical instrument (U.S. Patent No. 4587877). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4587877
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile