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. 04, 1982
Filed:
Mar. 31, 1980
Nippon Gakki Seizo Kabushiki Kaisha, Hamamatsu, JP;
Abstract
A reference frequency generator for a tuning apparatus comprising a variable frequency divider which frequency divides a source signal in accordance with frequency division data stored in one or more ROM's. The frequency division data comprises note data for specifying frequencies of respective notes in one octave of a musical scale, pitch deviation data for specifying pitch deviation of the respective notes in one octave with respect to the frequencies specified by said note data and tuning curve data for specifying tuning characeristics covering several octaves, so that the generator generates reference frequency signals representing various pitch deviations and tuning characteristics as well as a standard tuning pitch or characteristic.