JPH0221825B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electronic musical instrument that allows users to enjoy a guessing game by pressing keys and is suitable for music education for beginners and the like.

Generally, when teaching music to beginners, etc., it is preferable to add game-like elements so that the students can naturally become familiar with music while having fun.

However, conventional electronic musical instruments lack game elements and are not sufficient for music education for beginners.

An object of the present invention is to provide a novel electronic musical instrument that incorporates game-like elements that can enhance the effectiveness of music education.

The electronic musical instrument according to the present invention includes (a) a keyboard; (b) detects key presses on this keyboard; if only one key is pressed, it sends key press data for that one key; (c) a key press data generating means for transmitting key press data corresponding to only one key predetermined as a priority key among the plurality of keys in the case of a key press; (c) key press data generating means transmitting key press data; (d) pitch data generating means for generating a plurality of pitch data each representing a randomly determined pitch; e) display means for visually displaying simultaneously a plurality of pitch names corresponding to the pitches indicated by the plurality of pitch data based on the plurality of pitch data from the pitch data generating means; and (f) the above-mentioned. determining means for receiving key press data from the key press data generating means and individually comparing the pitches of the key press data with a plurality of pitch data from the key press data generating means to determine whether the pitches match; g) Display erasing means for controlling the display means to erase the display of the note name corresponding to the pitch indicated by the pitch data related to the pitch coincidence in response to the pitch coincidence output from the determination means. It is equipped with

According to the structure of the present invention, when a desired key is pressed on the keyboard after a plurality of note names are visually displayed all at once, if the key matches in pitch with one of the displayed note names, the key is pressed. The display of the note name related to the match is deleted.
In this way, the key press operation for erasing the displayed note name can be performed for each displayed note name, and it is also possible to start such a key press operation from any of the displayed note names. It is. Additionally, even if multiple keys corresponding to multiple note names being displayed are pressed at the same time, only one displayed note corresponding to a predetermined priority key (for example, the highest note) will be erased. All displayed note names are not deleted.

Hereinafter, the present invention will be explained in detail based on the accompanying drawings.

The figure shows a circuit configuration of an electronic musical instrument according to the present invention.

The keyboard circuit 10 is configured to supply the gate circuit 12 with key press data KD indicating which key is pressed among the many keys on the keyboard.

The gate circuit 12 is a game select switch.
When the SW is off, the game play signal GPL is "0", so this signal GPL="0" is made conductive according to the signal inverted by the inverter 14, and the key press data KD from the keyboard circuit 10 is converted into musical sound. The signal is supplied to the signal forming circuit 16.

The musical tone signal forming circuit 16 forms a musical tone signal corresponding to the pressed key according to the key press data from the gate circuit 12, and supplies it to the speaker 18. Therefore, a musical tone corresponding to the pressed key is produced from the speaker 18, and normal manual playing is possible on the keyboard.

On the other hand, when the game select switch SW is turned on, the game play signal GPL becomes "1". As a result, the gate circuit 12 becomes non-conductive, making it impossible to perform normal manual performance on the keyboard, but it becomes possible to enjoy note-applying gates by pressing keys on the keyboard.

In other words, when the switch SW is turned on, the signal
In response to GPL=“1”, the timing circuit 20 generates the reset pulse RS, load pulses L ₁ , L ₂ , and L ₃ in the stated order, and immediately after the generation of the load pulse L ₃ , the enable signal EN becomes “1”. become. Reset pulse RS is OR gate 22, 24, 2, respectively.
6 to the reset inputs R of the register circuits 28, 30, 32, causing these circuits to be reset. After this reset, load pulses L ₁ , L ₂ , and L ₃ are sequentially supplied to the load command input terminals L of the register circuits 28 , 30 , and 32 , respectively, so that the register circuits 28 , 3
0 and 32 sequentially take in and hold random pitch data RD from a random noise generator (RNG) 34. Here, register circuit 2
The pitch data held in 8, 30, and 32 differs from each other in the generation timing of load pulses L ₁ , L ₂ , and L ₃ , so they are different pitch data, such as "C,""D," and "A#," respectively. Indicates high.

The pitch data PD ₁ , PD ₂ , PD ₃ from the register circuits 28 , 30 , 32 are transmitted to the corresponding display control circuit 36 ,
38, 40, so these circuits 3
6, 38, and 40 indicate the pitch name "C" on the corresponding display sections 42a, 42b, and 42c of the pitch name display 42, respectively.
Display “D” and “A#” visually. Pitch name display 4
Reference numeral 2 includes, for example, a liquid crystal display, which is placed on the panel surface near the keyboard.

When the pitch name is displayed as described above, a key press operation is performed on the keyboard to press the key corresponding to the displayed pitch name, and at this time key press data KD is supplied to the priority circuit 44. The priority circuit 44 is provided to preferentially send key press data corresponding to one of the keys when multiple keys are pressed on the keyboard. It is possible to determine in advance a key that corresponds to the key pressed first, a key that corresponds to a higher pitched key, a key that corresponds to a lower pitched key, etc.

The key press data corresponding to one key from the priority circuit 44 is sent to the musical tone signal forming circuit 1 via the gate circuit 45 which is turned on by the game play signal GPL="1".
6. Therefore, each time a key is pressed on the keyboard, the speaker 18 produces a single tone corresponding to the priority key press data. Further, priority key press data from the priority circuit 44 is supplied to a comparison circuit 46,
It is compared with the output data from the selector circuit 48. The selector circuit 48 performs a selection operation in response to a 2-bit control signal CN periodically generated from the timing circuit 20 after the enable signal EN becomes "1", and the selection operation is performed based on the same control signal.
A switching circuit 50 receiving CN as a switching control input.
The switching operation is performed in correspondence with the switching operation.

That is, the selector circuit 48 is the register circuit 2
Pitch data PD ₁ , PD ₂ from 8, 30, 32,
Receive PD ₃ as inputs A, B, and C, respectively. If control signal CN is "01", input A is received, and CN is "10".
If so, input B is selected, and if CN is "11", input C is selected and sent. Further, the switching circuit 50 outputs the coincidence signal EQ from the comparator circuit 46 supplied via the AND gate 52 rendered conductive by the enable signal EN=“1”, if the control signal CN is “01”.
If CN is "10", output terminal b is set, and CN is "11".
If so, they are respectively switched and supplied to the output terminal c.

The control signal CN changes from "01" to "11" during a certain period (for example, 4 seconds) in which the enable signal EN is at "1" level, with one cycle (several microseconds).
Since such changes are repeated periodically, the comparison circuit 46 sequentially compares the key press data from the priority circuit 44 and the pitch data corresponding to the inputs A, B, and C of the selector circuit 48 during the certain period. Repeat this action periodically.

Assuming that a key corresponding to the note name "C" is pressed on the keyboard while the enable signal EN is at the "1" level, the comparator circuit 46 detects the timing at which the selector circuit 48 selects input A. A match signal EQ is generated in synchronization. This matching signal EQ is
It is supplied to the primary conversion circuit 50 via the AND gate 52. At this time, since the switching circuit 50 is in a state of supplying the input signal to the output terminal a, the AND gate 5
The match signal EQ from 2 is sent from output terminal a to OR gate 2.
2 to the reset input terminal R of the register circuit 28 via
is supplied to Therefore, the register circuit 28 is reset and all bits of the pitch data _PD1 are set to "0".
, and the pitch name "C" on the display section 42a accordingly.
The display will disappear.

Thereafter, when the keys corresponding to the pitch names "D" and "A#" are sequentially pressed on the keyboard, the pitch name displays on the display sections 42b and 42c are sequentially erased in the same manner as described above. Also, at this time, all bits of the pitch data PD ₁ to _{PD 3} are "0", and the NOR gate 54 which receives such data PD ₁ to _{PD 3} inputs the enable signal EN="1". Since the output signal of the inverter 56 to be input is also "0", the output signal = "1" is generated. The output signal = “1” from this NOR gate 54 is supplied to the scoring circuit 58 and also to the bell sound generating circuit 60.

The scoring circuit 58 calculates a score (for example, 5 points) corresponding to the disappearance of all pitch name displays on the display 42 based on the output signal from the NOR gate 54, and displays the score on the score display. Further, the bell sound generation circuit 60 generates a bell sound in response to the output signal from the NOR gate 54, and generates an end signal ED at the end of the bell sound. This end signal ED is supplied to the timing circuit 20, and in response, the timing circuit 20 resumes the same operation as described above when the game select switch SW is pressed.
Therefore, three new note names different from the previous one are displayed on the display 42, and the player can enjoy the second note guessing game on the keyboard while looking at this display.

The above is an operation in the case where all pitch name displays on the display 42 can be turned off during the "1" level period of the enable signal EN. If it is not possible to erase all the note names in instrument 42,
No points are scored, no bell sounds, and the following actions occur: That is, when the "1" level period of the enable signal EN ends, the enable signal EN becomes "0" regardless of how many note names are left on the display 42, and the timing circuit 20 accordingly changes to "0". The same operation as described above when pressing the game select switch SW resumes. Therefore, three new note names different from the previous one are displayed on the display 42, and the player can enjoy the second note guessing game on the keyboard while looking at this display.

In the above embodiment, alphanumeric characters were used to display pitch names on the display unit 42, but this may also be indicated by hard characters such as "do", "re", "mi", or by a five-line staff. It can also be displayed.

As described above, according to the present invention, a plurality of notes are generated at random, the names of the plurality of notes are displayed all at once, and a matching note name is selected from among the plurality of note names displayed simultaneously by pressing a key. Since the configuration is such that data is erased one by one, the following effects can be obtained.

(1) Compared to the case where one pitch name (or pitch name group) is given and the question is asked to press the key (or key group) that corresponds to that pitch name (or pitch name group), it is more entertaining. You can enjoy the game of guessing the high notes. For example, you can enjoy note guessing by viewing a plurality of note names displayed all at once as a target such as an invader, and making any one of them disappear by pressing a key.

(2) During the game process, the technology to quickly read multiple note names displayed all at once and press multiple keys corresponding to the displayed note names in sequence will improve, so you can press the keys in sequence while reading the musical score. This allows for a smooth transition to actual keyboard performance.

[Brief explanation of drawings]

The figure is a block diagram of an electronic musical instrument according to an embodiment of the present invention. 10... Keyboard circuit, 16... Musical tone signal forming circuit, 20... Timing circuit, 28, 30, 32
...Register circuit, 34...Random noise,
Generator, 36, 38, 40... Display control circuit, 42... Pitch name display, 46... Comparison circuit, 4
8...Selector circuit, 50...Switching circuit.

Claims (1)

[Scope of Claims] 1 (a) a keyboard; (b) detecting a key press on this keyboard, and if only one key is pressed, transmitting key press data corresponding to the one key;
(c) key press data generation means for sending key press data corresponding to only one key predetermined as a priority key among the plurality of keys in the case of pressing a plurality of keys; (d) musical tone generating means that generates a musical tone signal corresponding to the key press data each time data is sent out; and (d) pitch data generating means that generates a plurality of pitch data each representing a randomly determined pitch. (e) Display means for visually displaying simultaneously a plurality of pitch names corresponding to the pitches indicated by the plurality of pitch data based on the plurality of pitch data from the pitch data generation means; f) Determining means for receiving key press data from the key press data generating means and individually comparing the pitches of the key press data with a plurality of pitch data from the pitch data generating means to determine whether the pitches match. and (g) in response to the pitch match output from the determining means, controlling the display means to erase the display of the note name corresponding to the pitch indicated by the pitch data related to the pitch match. An electronic musical instrument equipped with a display erasing means.