MIDI controller keyboard, system, and method of using the same

• US 9,159,307 B1
• Filed: 03/13/2014
• Issued: 10/13/2015
• Est. Priority Date: 03/13/2014
• Status: Active Grant

• Current Assignee: Louis N. Ludovici
• Original Assignee: Louis N. Ludovici
• Inventors: Ludovici, Louis N.
• Primary Examiner(s): FLETCHER, MARLON T
• Application Number:
  US14/209,969
• Time in Patent Office: 579 Days
• US Class Current: 1/1
• CPC Class Codes: G10H 1/0066 using a MIDI interface
• CPC Class Codes: G10H 1/055 by switches with variable impedance elements
• CPC Class Codes: G10H 1/344 Structural association with individual keys electrically operated wind-actuated organs G10B3/22
• CPC Class Codes: G10H 2220/251 arranged as 2D or 3D arrays; Keyboards ergonomically organised for playing chords or for transposing, e.g. Janko keyboard special keyboards for playing chords, e.g. accordion G10H2230/245
• CPC Class Codes: G10H 2240/285 USB, i.e. either using a USB plug as power supply or using the USB protocol to exchange data

Abstract

A musical instrument including a housing, a keypad having a plurality of push buttons arranged in a three-dimensional array of horizontal rows and vertical columns disposed within the housing and a CPU with MIDI and USB processing coupled to the keypad to manipulate and control a sound generated with signals from the plurality of push buttons, wherein the horizontal rows of push buttons are arranged in tiers.

Claims

1. A musical instrument comprising:

a housing;

a keypad having a plurality of push buttons arranged in a three-dimensional array of horizontal rows and vertical columns disposed within the housing;

a double contact switch in each push button to generate a first signal when a push button is at one position and a second signal when the push button arrives at a second position;

a plurality of pressure transducers disposed between the housing and the keypad and coupled to the plurality of push buttons; and

a CPU with MIDI and USB processing coupled to the keypad to manipulate and control a sound generated with signals from the plurality of push buttons, wherein the horizontal rows of push buttons are arranged in tiers and signals of the pressure transducers are summed to produce a resultant signal proportional to an over-all pressure on the keypad.

2. The musical instrument of claim 1, wherein each push button is movable between the first position and the second position to produce note-on, attack velocity, note-off and release velocity signals.

3. The musical instrument of claim 1, wherein the CPU interprets the resultant signal from the plurality of the pressure transducers and converts that signal into an after-touch value.

4. The musical instrument of claim 3, wherein the after-touch signal controls a quality of the sound produced by the plurality of push buttons.

5. The musical instrument of claim 2, wherein the CPU determines velocity values based on a calculated time between receiving the first signal and the second signal.

6. The musical instrument of claim 5, wherein the velocity values control a quality of the produced sound.

7. The musical instrument of claim 1, wherein the CPU allows for multiple push buttons to generate a polyphony sound.

8. A musical instrument comprising:

a housing;

a keypad having a plurality of push buttons arranged in a three-dimensional array of horizontal rows and vertical columns disposed within the housing;

a double contact switch in each push button to generate a first signal when a push button is at one position and a second signal when the push button arrives at a second position; and

a CPU with MIDI and USB processing coupled to the keypad to manipulate and control a sound generated with signals from the plurality of push buttons, wherein the horizontal rows of push buttons are arranged in tiers and a clearance distance between adjacent rows of push buttons equals a distance a push button travels from the first position to the second position.

9. A musical instrument comprising:

a housing;

a keypad having a plurality of push buttons arranged in a two-dimensional array of horizontal rows along a first direction and vertical columns along a second direction, disposed within the housing;

a double contact switch in each push button to generate a first signal when a push button is at one position and a second signal when the push button arrives at a second position; and

a CPU coupled to the keypad to manipulate and control a sound generated with signals received from the plurality of push buttons,

wherein the horizontal rows of push buttons are arranged in tiers along a third direction and a clearance distance between adjacent rows of push buttons equals a distance a push button travels from the first position to the second position.

10. The musical instrument of claim 9, wherein the first, second, and third directions are substantially perpendicular to each other.

11. The musical instrument of claim 10, wherein the two-dimensional array includes twelve rows and fifteen columns of push buttons.

12. The musical instrument of claim 9, wherein a center-to-center distance of adjacent push buttons is about half an inch to about one inch apart.

13. A non-transitory storage medium having stored thereon a computer program comprising computer code for executing a method for generating, when the computer program is executed on a processor coupled to a musical instrument comprising a housing, a keypad having a plurality of push buttons arranged in a three-dimensional array of horizontal rows and vertical columns disposed within the housing, and a CPU with MIDI and USB processing coupled to the keypad to manipulate and control the sound generated with signals from the plurality of push buttons, wherein the horizontal rows of push buttons are arranged in tiers, an audio signal and a display signal upon a manual input, the method including:

receiving a MIDI music file;

receiving an input signal defining an instrument to use within the received MIDI music file;

outputting a display signal to a display device representing an image of the defined instrument;

outputting an illuminate signal to illuminate notes on the keypad and the image displayed on the display device corresponding to notes within the received MIDI music file; and

outputting an audio signal to an audio device when an illuminated note is pressed, wherein the audio signal produces a sound corresponding to the illuminated note.

14. The method of claim 13, wherein the notes within the received a MIDI music file are produced sequentially when the corresponding illuminated note is pressed.