ELECTRONIC MUSICAL INSTRUMENT PROVIDED WITH VARIABLE COUPLING OF THE KEYBOARDS

• US 3,717,715 A
• Filed: 10/14/1971
• Issued: 02/20/1973
• Est. Priority Date: 10/23/1970
• Status: Expired due to Term

• Current Assignee: Peter Jordy
• Original Assignee: Peter Jordy
• Inventors: Jordy, Peter
• Primary Examiner(s): Wilkinson, Richard B.
• Assistant Examiner(s): Witkowski, Stanley J.
• Application Number:
  US05/189,173
• Time in Patent Office: 495 Days
• Field of Search: 84/1.01,1.17,1.09,1.1,1.27
• US Class Current: 84/711
• CPC Class Codes: G10H 1/18 Selecting circuits

Abstract

An electronic musical instrument having at least two keyboards which are intercoupled in such a manner that the signals on the bus-bars of a keyboard are applied with controllable volume to the bus-bars associated with the same foot pitches of another keyboard.

Claims

1. An electronic musical instrument, comprising:

A. at least two keyboards each containing a plurality of bus-bars in which various tones are respectively applied thereto, some of said bus-bars in each of said keyboards having a foot pitch which is the same as a corresponding bus-bar in the other of said keyboards;

B. a plurality of amplifiers, each amplifier respectively coupled to a corresponding bus-bar in at least one of said keyboards;

C. a plurality of tone generators each respectively supplying an individual bus-bar in each of said keyboards through key switches associated with individual bus-bars in each of said keyboards;

D. switches interposed between and connecting bus-bars of the same foot pitch in each of said keyboards; and

E. control means connected between at least several of the bus-bars of at least one keyboard and each of said switches interposed between said bus-bars of the same foot pitch in each of said keyboards for varying volume of said foot pitch in said keyboard with respect to the foot pitch in the other of said keyboards.