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. 26, 1978
Filed:
Jul. 12, 1976
Ralph Deutsch, Sherman Oaks, CA (US);
Deutsch Research Laboratories, Ltd., Sherman Oaks, CA (US);
Abstract
In a digital tone synthesizer, musical tones are created by evaluating a generalized Fourier transform of harmonic coefficients. Tones corresponding to pulse-like waveshapes are simulated by using harmonic coefficient values associated with a pulse waveshape of specified shape. Apparatus is disclosed for producing sets of such harmonic coefficient values wherein each particular set is associated with a selected value of a pulse width parameter. Pulse width modulation tonal effects are achieved by changing the value of the pulse width parameter as a function of time. Means are described for including pulse width modulation as a subsystem of digital tone generators.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile