Transcript Tone Matrix Music Box ECE477 * Team 17

Presenter: Wan Qi Choo
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Digital musical instrument
- interface: the 8 x 8 matrix of light emitting buttons.
- 64 buttons: may be activated in different ways to
generate musical tones and light.
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3 music playing modes:
- Sweep mode, Memory mode, Gravity mode.
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3 musical instrument voices:
- Guitar, Piano, Drum beats
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MIDI features
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1. An ability to respond to user’s selection by producing
sound and emitting light when the buttons are pressed.
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2. An ability to memorize the sequence, as well as play
the selected tones infinitely, in the order set by user.
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3. An ability to utilize an accelerometer to detect the
inclination and direction of the device, so that the pitch
and tempo of music can be changed.
4. An ability to load various musical instruments sounds
such as guitar, piano, and drum beats from the internal
memory of the microcontroller and to play out sound.
5. An ability to control computers or other MIDI
instruments by sending MIDI, which are the operation
data generated from the device, through the MIDI OUT
interface.

1. An ability to respond to user’s selection by producing
sound and emitting light when the buttons are pressed.

2. An ability to memorize the sequence, as well as play
the selected tones infinitely, in the order set by user.



3. An ability to utilize an accelerometer to detect the
inclination and direction of the device, so that the pitch
and tempo of music can be changed.
4. An ability to load various musical instruments sounds
such as guitar, piano, and drum beats from the internal
memory of the microcontroller and to play out sound.
5. An ability to control computers or other MIDI
instruments by sending MIDI, which are the operation
data generated from the device, through the MIDI OUT
interface.
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Sweep mode
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Memory mode
- Music is played in a sequence such that when a
sweeping bar hits the buttons that were pressed, it
generates the tones and light associated with the
buttons.
- The vertical sweeping bar is virtual as it only serves
as a tool to count beats.
- It moves horizontally, one grid at a time, from left
to right and repeats.
- The eight columns represent the eight timing steps;
the eight rows represent eight different pitches.
- Music is played and looped infinitely in a sequence
following the order the buttons were selected.
- 64 buttons represent 64 types of pitches.
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Gravity mode
- Accelerometer is used to detect device inclination.
- The selected button acts like a spherical object that
generates the associated musical notes and light
based on its coordinates as it moves around the
plane.
- The tempo of the playing tones is determined by the
device inclination.
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Fundamental criteria for analysis:
- Project’s major features
- Project’s PSSCs
Similar commercial products:
- Tenori-On by Yamaha
1. Visually attractive interface:
- When a switch is pushed, the light is emitted and
user will have the points to generate the sound.
- Perform exactly the same function:
[PSSC1]: An ability to respond to user’s selection by
producing sound and emitting light when the buttons are
pressed.
2. Create Music with various kinds of loops:
- Score mode: When scan bar moves one by one from
left to right, it generates sound at the point where the
switches were pushed and loops.
- Perform substantially the same function as the
Sweep mode. (Scan bar is not visible in Sweep mode.)
- Random loop mode: When switch is pushed one by one, the
point that was pushed should be memorized as the order it
was pushed.
- Light moves between the points where switches were
pushed and the sound should be generated when the light
hits the point.
- Perform substantially the same function as the Memory
mode. (Light is only visible on the pressed buttons in Memory
mode.) [PSSC2]: An ability to memorize the sequence, as well
as play the selected tones infinitely, in the order set by user.
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Performance Apparatus
Method
–Patent No.
:
-Patent Date
:
-Filed
:
and Tone Generation
US8008565B2
Aug 30, 2011
Oct 21, 2009
Performance Apparatus and Tone Generation
Method using the Performance Apparatus
–Patent No.
:
US7342164B2
-Patent Date
:
March 11, 2008
-Filed
:
July 28, 2006
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Performance Apparatus and Tone Generation Method
Abstract: “Plural key switches are arranged in two dimensions along X- and Ycoordinate axes, and an X-coordinate position of each of the key switches is
associated with tone generation timing while a Y-coordinate position of each
of the key switches is associated with a tone pitch. Storage section stores a
music piece data set that includes tone generating data having data of tone
pitches and tone generation timing associated with the key switches. In a
repeat-section setting mode, a repeat-section setting section causes the plural
key switches to function as setting operators and sets a repeat section of the
music piece data set on the basis of the X-coordinate position of any operated
one of the key switches. In reproduction of the stored music piece data set, a
reproduction section repetitively reproduces the tone generating data of the
music piece data set which are included in the set repeat section.”
Types: Literal Infringement
Actions: obtain license from Yamaha to use the functions
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Apparatus and Tone Generation Method using the
Performance Apparatus
Abstract: “Key switches are arranged to form plural rows, and light emitting
elements are provided in corresponding relation to the key switches. For each
of the rows, any operated key switch is detected, and, on the basis of such
detection, the light emitting elements are sequentially illuminated so that an
illuminated position reciprocates between the operated key switch and the key
switch located at a predetermined position of the row the operated key switch
belongs to. In synchronism with illumination of the key switch located at a
predetermined position of the row, at least one of tones allocated to the row is
generated. When duration of operation of the operated key switch is greater
than a predetermined time, the light emitting elements located in a
predetermined range may be illuminated in accordance with a predetermined
pattern, and an effect may be imparted to a tone corresponding to the
operated key switch.”
Types: Infringement under Doctrine of Equivalents
Actions: obtain license from Yamaha to use the functions