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:
Apr. 14, 1998
Filed:
Mar. 21, 1995
Applicant:
Inventors:
Yuji Fujiwara, Shizuoka, JP;
Taro Kawabata, Shizuoka, JP;
Yoshimasa Isozaki, Shizuoka, JP;
Yasuhiko Oba, Shizuoka, JP;
Assignee:
Yamaha Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10G / ;
U.S. Cl.
CPC ...
84462 ; 84 20 ;
Abstract
An automatic player piano records an original key motion reciprocated between a rest position and an end position as a series of a key-on event, a hammer event and a key-off event by using key/hammer sensors, and supplements the key/hammer event for an unusual key motion such as a half stroke, thereby faithfully reproducing the original key motions in a playback mode.
Fujiwara, Yuji. (1998). Keyboard musical instrument equipped with dummy key/hammer event (U.S. Patent No. 5739450). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5739450
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile