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. 12, 1977
Filed:
Mar. 04, 1974
Ray B Schrecongost, Park Ridge, IL (US);
Hammond Corporation, Chicago, IL (US);
Abstract
A monophonic electronic music synthesizer in which keying signals are collected on common note busses and common octave busses. Tone signals from a top octave tone generator are gated by separate note gates controlled by keying signals on common note busses to select the note tone signal regardless of octave. A chain of frequency dividers fed by the note tone signal produce octavely related tone signals which are gated by separate octave gates controlled by keying signals on common octave busses. A preferred embodiment especially useful in an integrated organ-synthesizer system employs a low octave lockout circuit to select an active highest octave of actuated keyswitches and a preference gating arrangement for tone signals to produce high note select gating of monophonic tone signals. A D.C. keyed volts per octave circuit is also disclosed.