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:
Sep. 04, 1990
Filed:
Jan. 17, 1989
Applicant:
Inventor:
David T Starkey, San Diego, CA (US);
Assignee:
Gulbransen Incorporated, Las Vegas, NV (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H / ; G10H / ; G10H / ; G10H / ;
U.S. Cl.
CPC ...
84603 ; 84606 ; 84607 ; 84620 ; 84627 ; 84DI / ; 364723 ;
Abstract
An electronic musical instrument of the digital synthesis type that uses digital processing techniques to impart not only the desired harmonic structure and pitch, but also to impart the correct amplitude and envelope. Only after all of the harmonic structure processing, all amplitude scaling, and all panning/mixing has been performed in digital circuitry, are the four outputs converted by digital to analog converters into analog musical outputs. Part of the digital processing includes a digital scaling circuit using a barrel interpolator to scale each sample from 1/2 to 31/32 and a shift right register to scale each sample between 1 and 1/32,768.