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:
Feb. 25, 2003
Filed:
Mar. 22, 2001
Satoru Tsutsumi, Hamamatsu, JP;
Yamaha Corporation, Hamamatsu, JP;
Abstract
Tone control data are stored in a volatile first memory such as a RAM, and a color or other factor of a tone to be generated is set or controlled in accordance with the tone control data. User can set contents of the tone control data stored in the first memory. In response to the setting of the tone control data, the stored contents of the first memory are automatically transferred to and stored into a non-volatile second memory, at which time the tone control data are transferred to the second memory within an idle time period when no other operation is being carried out. A plurality of sets of the tone control data, updated at different time points, are stored in the second memory, and arrangements are also made such that, when an error occurs in the course of newest tone control data, data recovery can be made using the second newest set of the tone control data stored in the second memory.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile