JP3123138B2 - Code dictionary device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a code dictionary device for a user to refer to a desired code.

[0002]

2. Description of the Related Art Conventionally, there is an electronic musical instrument that allows a user to refer to a chord such as a chord name and a chord pronunciation relating to a desired chord.

In such an electronic musical instrument, a user
For example, by pressing a plurality of keys in a predetermined chord key range on the keyboard as shown in FIG. In response to this designation operation, the electronic musical instrument determines the chord from the key pressed by the user, and particularly displays a chord name on a display unit (not shown) and emits a chord corresponding to the chord.

Further, in order to assist the above-mentioned code designating operation by the user, a key to be depressed by the user as a constituent sound of the code, for example, above each key in FIG. There is also an electronic musical instrument having a function of instructing by a guide LED (black circle in FIG. 17) provided in the electronic musical instrument.

[0005]

However, at the time of referring to the chord, the user does not always reliably remember the constituent sounds of the chord. Results in the specification of

[0006] Further, even in the case where a constituent sound of a chord is instructed by a ROM pack or the like, since the chord desired by the user is not always specified by the ROM pack, the usability is not always good. .

An object of the present invention is to make it possible for a user to easily refer to a chord such as a chord name, a chord constituent sound, and a chord pronunciation relating to a desired chord.

[0008]

In one embodiment of the present invention ,
First, there is a route specification means for specifying the route
You. The means is, for example, a keyboard. Next, specify the code type
A code type specifying means for specifying the code type. This means, for example,
It is a key. In addition, the code type
A new code is created from the code type and the currently determined code type.
A code type determining means for determining the code type. The means
For example, all code types that can be specified by code type specification means
And any code that can currently exist as determined
Code prediction for all new code types that can be determined from
It is stored as a transfer table. And code type designation means
Between the code type specified in and the currently determined code type.
Therefore, by referring to the code transition table,
A new code type corresponding to them is determined. In addition, the code
The code type determined by the type determining means and the route specifying means
The sound of the chord determined from the route specified in
It has a code configuration sound notification means for notifying. The means is an example
For example, a chord sounding means that produces the chord components
Is a lamp display means provided for each key on the keyboard,
The lamp display means is, for example, a route for the code to be displayed.
The component sound corresponding to the sound is distinguished from the component sounds other than the root.
To display. Further, in another configuration of the present invention, firstly, it has a keyboard means for cormorants rows specified route or code constituent notes.

[0009] Then, with the code type designation means that specifies the code type. Further , when two or more keys are depressed by the keyboard means, a code discriminating means is provided for discriminating a chord having each scale tone corresponding to each depressed key as a constituent sound.

Further, there is provided a code display means such as an LCD display device for displaying a code route and a code type determined by the code determination means. On the other hand, when only one key is depressed in the keyboard means, there is provided a route determining means for determining a route corresponding to the depressed key. The means further determines, when the result of the determination by the chord determining means is undetermined, a scale note having the lowest scale among the scale sounds corresponding to the keys depressed by the keyboard means as a root. Can be configured.

[0011] Then, to have a code type determining means for determining a new code type from the specified code type and code type that is currently defined in the code-type specification means.

Furthermore, to <br/> have a chord member informing means for informing the configuration of the chord is determined from the code type determining means determined code type and route determined by the route determination means.

[0013]

[0014]

When the user knows the chord name and wants to know its constituent sounds, the user designates a route by the route designation means.
Luke, or specify the route by depressed keys of only 1 key in the keyboard unit, further, by specifying the code type by the code type specification means, code constituting the configuration of the chord to be determined from them it can be informed <br/> sound notification means.

In this case, the code type determining means determines a new code type based on the currently determined code type and the code type specified by the code type specifying means. New code types can be specified one after another in association with the code types. For example,
After specifying the minor code as the code type, the user can further specify the seventh code to specify the minor seventh code.

[0016] In addition, if you want to hand notified to the chord member notification means the component sounds of the defined code, issued the constituent notes of the code
Ramp indication means provided for each key on the keyboard
By turning on the light, the user can hear or see
You can recognize over de constituent notes, and by flashing the like to Rukoto the configuration sound corresponding to the root of the code, for example, by inversion type even when the configuration of the chord is indicated, the user Which component sound corresponds to the root can be easily identified.

Next, when the user wants to know what kind of code the key pressed by himself / herself constitutes, two or more keys are depressed by the keyboard means. A chord display means can display a chord route and a chord type in which each scale note corresponding to the key is a constituent sound.

[0018]

[0019]

Embodiments of the present invention will be described below in detail with reference to the drawings. Configuration of the Embodiment FIG. 1 is a block diagram of an embodiment of the present invention.

First, the keyboard unit 101 and the LED unit 103
It has the same appearance as that of FIG. 17 described above. Key press detection circuit 1
02 detects the state of key depression or key release on the keyboard unit 101.

A switch unit 104 includes a code switch CHORD for setting or canceling a code dictionary mode in which a user can refer to a code, and a numeric keypad as shown in FIG. 2 for specifying a code type. Is provided. The root at the time of specifying the chord is specified using a key in the chord range of the keyboard unit 101.

The switch (SW) detection circuit 105 detects a switch setting state in the switch section 104. L
As shown in FIG. 3, the CD display unit 115 displays a root of a chord specified by the user as an alphabet corresponding to the note name, and emits a chord type with a character portion indicating the chord type. And a code type display section for displaying the code type.

The various table sections 109 store a key press code determination table and a code LCD table used in a code key process described later, a code LED table used in a code change correspondence process described later, and the like.

The CPU 106 has a program ROM 107
Working RA according to the control program stored in the
While using M108 as needed, various controls for chord judgment and musical sound generation are performed.

The timer unit 114 is used in a later-described route blinking interrupt process or the like. Tone generator 1
10 generates musical sound data according to an instruction from the CPU 106. In this circuit, PCM, DPCM
Various tone generation systems such as a system, an ADPCM system, a frequency modulation system, a phase modulation system, and a harmonic addition system can be adopted.

The D / A converter 111 has a tone generation circuit 11
The tone data in which 0 is generated is converted into an analog tone signal. This analog tone signal is emitted from the speaker 113 via the amplifier 112. Description of Overall Operation of Embodiment The overall operation of the embodiment of the present invention having the above-described configuration will be described with reference to the operation flowchart of the main flow in FIG. Note that this main flow corresponds to the CPU shown in FIG.
106 is realized as an operation of executing the control program stored in the program ROM 107.

First, when the power is turned on, the CPU 10
Initial processing for initializing various registers in the working RAM 6 and various variables in the working RAM 108 is executed (step S401).

Thereafter, loop processing such as steps S402 to S406 in FIG. 4 is repeatedly executed until the power is turned off. In the SW scan processing in step S402, the state of the switch unit 104 detected by the switch detection circuit 105 in FIG. 1 is scanned.

In the keyboard processing in step S403, if the code dictionary mode is not set by the code switch CHORD of the switch unit 104 in FIG. 1, the state of the keyboard unit 101 detected by the key press detection circuit 102 in FIG. Then, processing of sound generation or mute is performed. In the code dictionary mode, a code key process described later is executed.

In the function processing in step S404, code switch processing and numeric key processing, which will be described later, are executed based on the result of scanning the switch state of the switch unit 104 in FIG. 1 by the switch scan processing in step S402.

The determination in step S405 is YES when the code specified by the user changes in the code dictionary mode, and as a result of the determination, the code key range (FIG. 17)
Step S4 for controlling the lighting of the LED in step S4).
06 code change corresponding processing is executed.

The loop processing including the above processing is repeatedly executed. The processing in the code dictionary mode particularly related to the present invention among the above-described processing will be described in detail. Summary description of the code dictionary mode First, an outline of the code dictionary mode.

The user can alternately switch between the chord dictionary mode and the normal performance mode with automatic accompaniment by pressing the chord switch CHORD of the switch unit 104 of FIG. 1 once.

In the chord dictionary mode, when a user knows a chord name and wants to know its constituent sounds, first,
By pressing any key in the chord key range (see FIG. 17) of the keyboard unit 101 (FIG. 1), the chord root is specified, and at the same time, the ten keys (see FIG. 2) of the switch unit 104 in FIG. Specify code type. As a result, the specified chord is determined by the chord key processing described later executed in the keyboard processing of step S403 in FIG. 4 and the ten key processing described later executed in the function processing of step S404. Then, based on the result of the determination, the chord change corresponding process in step S406 is executed, and in the chord key range of the keyboard unit 101 in FIG. 1, the LED of the key corresponding to the constituent sound of the designated chord is turned on.

When the user wants to know what kind of code the key depressed constitutes, the keyboard 101
In the chord key range of FIG. 1 (see FIG. 17), a key of three to four tones is pressed. As a result, the code is determined based on the pressed key, and the route and code type of the determined code are displayed on the LCD display unit 115 (see FIG. 3) in FIG.

Here, LE in the chord range of the keyboard 101
The LED indicating the key corresponding to the root among the code keys (keys constituting the code) for which D is lit blinks. This allows the user to easily determine which key corresponds to the root. This blinking process is performed by the timer unit 11 shown in FIG.
4 in response to an interrupt from the CPU 4 at regular intervals.
Is realized by a route blink interrupt process described later, which is executed independently of the main flow program of FIG. Description of Registers Used in Code Dictionary Mode Hereinafter, before describing specific processing operations of the embodiment of the present invention in the code dictionary mode, registers in the CPU 106 used in this mode will be described.
These registers are shown in FIG.

In FIG. 5, "1" is set in the register CJF in the code dictionary mode, and "0" is set in the normal performance mode. In the register CF, “0” is set in the undetermined release state, “1” is set in the code undetermined state, and “2” is set in the route undetermined state.

The registers CH and RT store a code type and a route finally determined by numeric key processing or code key processing described later. In this case, the register CH
Are "0" to "1" in hexadecimal notation corresponding to each code type.
Any value of "0" (H) is stored, and when the code is not determined, a value "ff" representing a non-code is stored. In the register RT, 12 tones of note names C to B within one octave are stored. A value from "0" to "B" is stored in hexadecimal notation corresponding to any of the note names, and a value "ff" representing a non-code is stored when the route is not determined.

The contents of the register FT are stored in the timer unit 11.
Reference numeral 4 denotes an LED flow timer that is incremented each time an interrupt for an LED blink interrupt process described later occurs.

The register FK stores a key code for lighting an LED in the code key area. Description of Code Switch Process The user can alternately set or cancel the code dictionary mode by pressing the code switch CHORD once in the switch unit 104 of FIG. This control is realized as a code switch process executed in the function process of step S404 in FIG.

Hereinafter, the code switch processing will be described.
This will be described in detail with reference to the operation flowchart of FIG. Note that this operation flowchart corresponds to the CPU 106 of FIG.
Is realized as an operation of executing the control program stored in the program ROM 107.

The code switch processing of FIG. 6 is started in the function processing of step S404 of FIG. 4 executed immediately after the user presses the code switch CHORD.

First, in step S601, a value "ff" corresponding to a non-code is stored in registers CH and RT for storing a code type and a route. Next, in step S602, a display "-" indicating a non-code is performed on the LCD display unit 115 in FIG.

Subsequently, in step S603, FIG.
The LED displayed in the chord key area (FIG. 17) of the keyboard section 101 is turned off. Further, in step S604, if there are any chords (chords) currently being generated in the tone generation circuit 110 of FIG. 1, they are released.

Next, in step S605, it is determined whether or not the content of the register CJF is "1", that is, whether or not the mode is the code dictionary mode. Until now, if the mode is not the code dictionary mode, the determination in step S605 is N
O, and the process of shifting to the code dictionary mode (mode IN
Processing) is performed. This mode IN processing is performed in step S
This is realized as the processing of 606 to S610.

First, at step S606, the register FK stores L in the chord key range of the keyboard 101 of FIG.
The lowest tone F ₂ of the key provided with the ED (see FIG. 17)
Is stored. Then, step S60
In 7, note name F ₂ key of the LED code key range for that register FK is illuminated.

Subsequently, at step S608, LE
The content of the register FT, which is a timer for D flow, is "0"
Is reset to Also, in step S609,
A value “1” indicating a code undetermined state is set in the register CF.

Further, in step S610, a value "1" indicating the code dictionary mode is set in the register CJF. Mode I of the above steps S606 to S610
In contrast to the N processing, if the mode is the chord dictionary mode so far, the determination in step S605 is YES, and the process of shifting from the chord dictionary mode to the normal performance mode in response to the pressing of the chord switch CHORD ( Mode OU
T processing) is performed. This mode OUT processing is realized as the processing of steps S611 and S612.

First, in step S611, a value "0" indicating an undetermined release state is set in the register CF. Further, in step S613, the register CJF
Is set to a value "1" indicating a normal performance mode. Description of LED blink interrupt processing In the case of shifting to the code dictionary mode by the above-described code switch processing, in order to enhance the visual effect as an electronic musical instrument, the LEDs in the chord key range of the keyboard unit 101 in FIG. . This control is realized as an LED blink interrupt processing shown in the operation flowchart of FIG. This operation flowchart shows that the CPU 106
In response to an interrupt from the timer unit 114 at regular intervals, the program is independent of the main flow program in FIG.
It is realized as an operation of executing a control program stored in the program ROM 107. The time interval of the interruption from the timer unit 114 is 50 μsec in this embodiment.
It is.

First, in step S701, it is determined whether or not the content of the register CF is a value other than the value "0" indicating a code indefinite release state. If this determination is NO, it is in the normal performance state, or the chord is determined in the chord dictionary mode and the LE corresponding to the chord is determined.
Since the lighting control of D is to be performed, the interrupt process for blinking the LED for enhancing the visual effect is not substantially performed.

When the content of the register CF is a value "1" indicating a code undetermined state or a value "2" indicating a route undetermined state,
If the determination in step S701 is YES, the processing in step S702 and subsequent steps is executed.

First, in step S702, the value of the register FT, which is a timer for LED flow, is incremented. Then, the value of this register FT is 100
If it does not become 0, the determination in step S703 is NO, and the LED blink interrupt processing is terminated as it is. As described above, the interrupt of the LED blink interrupt processing is generated every 50 μsec.
The value of T is incremented. Therefore, the register FT
During the period of 50 msec until the value of becomes 1000, the processing after step S704 is not executed. This 50ms
ec is the blinking interval of the LED.

When the value of the register FT reaches 1000, the judgment in the step S703 becomes YES, and the step S7
04 is executed. In step S704, the register F is set for the next 50 msec counting operation.
The value of T is reset to "0" again.

Next steps S705, S706 and S7
In the process of 07, the LED of each key of the pitch names F _{2 to} E ₃ (see FIG. 17) in the chord key range of the keyboard unit 101 in FIG.
This is a process for illuminating one after another at intervals of c.

That is, in step S705, the register FK
The value of the value corresponds to the key of the highest note E ₃ of the code key range "1
0 ”(H) is determined, and this determination is NO.
Then, in step S707, the value of the register FK is incremented by +1. Also, if YES is determined in step S705, the in step S706, the value of the register FK is returned to the value corresponding to the key of the lowest note F ₂ code key range "5" (H).

Then, in step S708, as described above, the LED of the key in the code key range corresponding to the value of the register FK whose value is controlled is turned on. Description of Code Key Processing Next, the code key processing executed in the keyboard processing in step S403 in FIG. 4 will be described in detail with reference to the operation flowchart in FIG. This operation flowchart is realized as an operation in which the CPU 106 of FIG. 1 executes a control program stored in the program ROM 107.

First, in step S801, it is determined whether or not the content of the register CJF is "1", that is, whether or not the current mode is the code dictionary mode. The current is the normal performance mode, and the determination in step S801 is NO.
If so, the code key processing shown in FIG. 8 is not substantially executed. In this case, a normal key press / key release process (not shown) in the keyboard process S403 of FIG. 2 is executed.

At present, in the code dictionary mode, step S80
If the determination in Step 1 is YES, the processes in and after step S802 are executed. First, in step S802, a search is performed to determine whether the user has pressed a key in the chord key range (see FIG. 17). In step S803, it is determined whether a key is pressed.

If the determination in step S803 is NO, the code key process is immediately terminated, and the process returns to the loop process of the main flow in FIG. If the determination in step S803 is YES,
In the next step S804, it is determined whether or not the number of keys pressed is one.

If the number of keys pressed is one, the user has pressed any key in the code key area (see FIG. 17) of the keyboard unit 101 (FIG. 1) to specify the chord root. In step S807, the depressed key name is stored in the root storage register RT.

Subsequently, in step S808, it is determined whether or not the content of the register CF is a value "1" indicating that the code is currently undetermined. This judgment is Y
If it is ES, in step S809, the value "0" indicating the major code (Maj) is forcibly stored in the register CH for storing the code type. As a result, when the user presses any key in the chord key range in the chord undecided state, the key depression determines the route and sets the chord type to a major code for the time being.

On the other hand, if the determination in step S808 is NO, the user has already specified the chord type, and has specified only the root by pressing a key in that state. The process proceeds to S812.

Since the root and the code type have been determined as described above, in the subsequent step S812, the register C
A value “0” indicating cancellation of the undetermined state is stored in F. Next, in step S813, the code LCD table in the various table units 109 in FIG. 1 is referred to by the code type and the route determined as the contents of the registers CH and RT, and based on the LCD drive signal obtained as a result. 1
The determined code route and code type are displayed on the LCD display unit 115 (see FIG. 3).

Note that, together with the LCD display, the keyboard 1 shown in FIG.
In the chord key range 01, the LED of the key corresponding to the component sound of the determined chord is also turned on.
In the main flow of FIG. 2, the determination is made in step S405 to be YES, and the process is realized by executing the code change handling process in step S406. This will be described in detail later.

Subsequently, in step S814, the tone generation circuit 11 shown in FIG. 1 issues a tone generation instruction for each of the constituent tones corresponding to the codes determined as the contents of the registers CH and RT.
A chord (chord) is pronounced for 0. Thereby, the user can check the code designated by himself / herself audibly.

After the processing in step S814, the code key processing ends. Steps S807 to S809 described above
The process of S814 is performed when the user presses only one key in the chord key area (see FIG. 17) of the keyboard unit 101 (FIG. 1) in order to specify the chord root. On the other hand, when the user has pressed one or more keys, the determination in step S804 described above is NO.

In this case, since the user has pressed a plurality of keys in the chord key range to directly specify the constituent sounds of the chord, the user pressed the keys in the chord key range in step S805. A code determination is made based on a plurality of keys. This determination process is the same as a conventional code determination process. For example, the code type and the route are determined with reference to a key press code determination table stored in the various table units 109 in FIG.

In the next step S806, it is determined whether or not the code has been determined as a result of the above-described code determination processing. The code cannot be determined, and the determination in step S806 is N
In the case of O, the pitch name of the key with the lowest pitch name among the keys pressed by the user is stored in the root storage register RT. The subsequent operations are performed in step S8 when the key pressed by the user is one key.
It is the same as the processing after 08.

As a result of the code determination processing in step S805, the code can be determined, and the determination in step S806 is YE
If the result is S, the contents of the registers CH and RT indicating the code type and the route are set based on the determination result.

Since the root and the code type have been determined as described above, in the subsequent step S812, the register C
A value “0” indicating cancellation of the undetermined state is stored in F. Next, in step S813, the LCD display unit 1 shown in FIG.
At 15 (see FIG. 3), the route and code type of the determined code are displayed. Than this _2, the user is able to visually confirm the code to configure sound the keys that you have to key depression.

Subsequently, in step S814, a tone generation instruction for each of the constituent tones corresponding to the chords determined as the contents of the registers CH and RT is issued by the tone generation circuit 11 of FIG.
A chord (chord) is pronounced for 0. Thereby, the user can check the code designated by himself / herself audibly.

After the processing in step S814, the code key processing ends. Explanation of numeric keypad processing The user operates the switch unit 1 shown in FIG.
At 04, the code type can be directly designated by pressing any numeric key (see FIG. 2). This control is realized as ten-key processing executed in the function processing of step S404 in FIG. The route is specified by the keyboard unit 101 (FIG. 1).
By pressing any key in the chord range of, the designated root tone is, as described above,
In the processing of step S807 in FIG. 8, the value is set in the register RT.

Hereinafter, the numeric key processing will be described in detail with reference to the operation flowchart of FIG. Note that this operation flowchart is realized as an operation in which the CPU 106 of FIG. 1 executes a control program stored in the program ROM 107.

The numeric key processing in FIG. 9 is executed immediately after the user presses the numeric key in step S40 in FIG.
4 is activated in the function processing. First, in step S901, it is determined whether or not the pressed numeric keypad is any of numbers 0 to 8. Now, an operation for designating any code type is assigned to the numeric keys 0 to 8. The operation of releasing the designation of the code type is assigned to the ninth numeric keypad.

Therefore, if the ninth numeric key is pressed, the determination in step S901 is NO, and the determination in step S901 is NO.
As the processing of steps 908 to S913, processing of releasing the designation of the code type is executed.

That is, in step S 908, the value “1” indicating the code undetermined state is stored in the register CF. Next, in step S909, if there is a chord (chord) currently being generated in the tone generation circuit 110 of FIG. 1, those chords are released.

Next, in step S910, display "-" indicating a non-code is performed on LCD display unit 115 in FIG. Further, in step S911, the value of the register FK is set to the value "5" corresponding to the key of the lowest note F ₂ code key range (H). And step S
In 912, the lowest tone F ₂ key of the LED code key range corresponding to the value of the register FK is illuminated.

Further, in step S913, the LED
The value of the register FT, which is a flow timer, is reset to “0”. After the processing in step S913, the ten-key processing ends.

After the above-described process of releasing the designation of the code type is executed, the LED of the code key range of the keyboard unit 101 of FIG.
Is repeated one after another.

Next, the user presses any of the numeric keys 0 to 8 so that the determination in step S901 is YE.
In the case of S, an operation of designating the code type assigned to the numeric keypad is performed.

First, in step S902, it is determined whether or not the current content of the register CF is a value "1" indicating a code undetermined state. Now, when the root is already specified by the user pressing any key in the chord key area, and the value of the register CF is set to “0” indicating the undetermined release state (see step S812 in FIG. 8). In step S902, the determination in step S902 is NO, and the process of specifying the code type in step S904 is performed in a state where the route is determined.

If the value of the register CF is "1" indicating the code undetermined state, the determination in step S902 is YES, and in step S903, the value of the register CF is "2" indicating the route undetermined state. After that, the code type designation process of step S904 is executed.

Further, when the value of the register CF is "2" indicating the route undetermined state, the determination in step S902 is NO, and the code type in the next step S904 is maintained while the route is undetermined. Is specified.

In step S904, the code transition table stored in the various table units 109 in FIG. 1 is changed according to the code type designated by the user using the numeric keypad and the current code type indicated as the value of the register CH. By reference, a new code type is determined,
A value corresponding to the code type is newly set in the register CH.

FIG. 10 shows an example of the code transition table.
The code type indicated at the intersection of the row where the value of the register CH indicating the current code type matches the value shown in the leftmost column and the column where the numeric keypad number matches the value shown in the top row is , The code type to be newly determined. For example, if the currently determined code type is a minor code (min) and the first numeric key for designating the seventh code (7th) is pressed, the newly determined code type is a minor seventh. Code (min7th). Further, for example, when the current code type is undetermined and the fourth numeric key for designating the diminished code (dim) is pressed, the newly determined code type is the diminished code (Dimish code (dim)). dim).

As described above, by referring to the code transition table in step S903, the user can use the numeric keypad to associate the currently determined code type with
New code types can be specified one after another. Then, the user can specify all kinds of code types shown in the code transition table by pressing the numeric keypad up to three times. For example, the user may press the numeric keypad in the order of 0th (min), 1st (7th), and 8th (-5th) in order to specify the minor seventh flat five code (min7-5).

As described above, when the code type is the register C
After determining the value of H, in step S905,
The code LCD table in the various tables 109 in FIG. 1 is referred to by the code type determined as the contents of the register CH, and based on the resulting LCD drive signal, the LCD display 115 in FIG. 1 (see FIG. 3). Displays the determined code type.

After the processing in step S905, the ten-key processing ends. Code change handling process and route blinking interrupt process
Description Finally, the code change handling process and the route blink interrupt process in step S406 in FIG. 4 will be described.

As described above, when there is a change in the code specified by the user, step S in the main flow of FIG.
The determination at 405 is YES. As a result, step S4
The code change corresponding process of 06 is executed, and the lighting control process of the LED of the key in the code key range corresponding to the code change is executed.

Here, among the keys constituting the code displayed by turning on the LED, the LED indicating the key corresponding to the route is blinked. This allows the user to easily determine which key corresponds to the root. This blinking process is realized by a route blinking interrupt process.

First, before describing the operations of these processes in detail, the configuration of the LED section 103 of FIG. 1 related to the processes will be described. FIG. 11 is a configuration diagram of the LED unit 103 related to the code change handling process.

In FIG. 11, a guide LED 1101 shown as a black circle in FIG. 17 is connected to a latch 1104 via a resistor 1102 and a diode 1103. Then, each LED 1 corresponding to the key of the pitch name F _{2 to} E ₃
The lighting operation of 101 is realized as follows.

That is, the CPU 106 of FIG. 1 sets the data I ₀ in which the bit corresponding to the LED to be lit is set to “1”.
Enter the ~I ₁₁ to PortA, sets the latch enable signal LE to PortB. As a result, the LED drive output signals Q _{0 to} Q ₁₁ are output from the latch 1104 and the desired L level is output.
The ED 1101 is turned on.

Next, registers in the CPU 106 used in the code change handling process and the route blink interrupt process will be described. These registers are shown in FIG. In FIG. 14, a register CL stores code LED output data indicating a constituent sound of a chord based on a user's instruction. This data is 12-bit data, and each bit corresponds to each of 12 sounds within one octave. Then, by setting any 3 bits or 4 bits of these bits to “1”, a constituent sound of the chord is expressed. The register RL is a register for storing data in which the bit corresponding to the route among the 12-bit data is set to “1”. The register LF includes an LED 1101 (FIG. 11) corresponding to the current route.
Is set to "1" when is turned on, and "0" is set when is turned off. The content of the register CLT is a code LED timer that is incremented each time the timer unit 114 generates an interrupt for the route blinking interrupt process. In addition, general-purpose registers S, T, X and the like are prepared.

Next, the code change handling process in step S406 in FIG. 4 will be described in detail with reference to the operation flowchart in FIG. This operation flowchart is realized as an operation in which the CPU 106 of FIG. 1 executes a control program stored in the program ROM 107.

First, in step S1201, it is determined whether or not the designated code is non-code, that is, undetermined as a result of the code change. This determination process is realized as a process of determining whether or not the register CF is not a value “0” indicating a code indefinite release state.

If the value of the register CF is “1” indicating the code undetermined state or the value “2” indicating the route undetermined state, the determination in step S1201 is YES, and the registers S and T are stored in steps S1208 and S1209. “0” is substituted. Then, the values “0” of the registers S and T are substituted into the registers CL and RL in steps S1210 and S1211.

Here, the contents of the registers CL and RL are
Each LED 1101 of FIG. 11 in the LED unit 103 (FIG. 1)
Of the data I _{0 to} I ₁₁ applied to the port A of the latch 1104 to perform the lighting control of the latch 1104. When the contents of the registers CL and RL become “0” as described above, All the LEDs 1101 are turned off.

However, in the above-described LED blink interrupt processing of FIG. 7, the determination in step S701 is YES.
Therefore, the LED in the chord key range of the keyboard unit 101 in FIG.
Blinks one after another, and the visually effective operation is repeated.

On the other hand, when the root and the code type are determined by the code key processing of FIG. 8 or the numeric key processing of FIG. 9, one code is determined, and the register CF becomes a value “0” indicating a code undetermined release state. If the answer is NO, the determination in step S1201 is NO, and step S120
2 is executed.

In step S1202, the value of the route (see steps S807, S810 and S811 in FIG. 8) stored in the register RT by the code key processing in FIG. 8 is stored in the register X. This value is any one of "0" to "B" in hexadecimal notation, depending on which of the note names C and B is within one octave.

In the next step S1203, the code type determined by the code key processing of FIG. 8 or the numeric key processing of FIG. 9 and stored in the register CH (step S80 in FIG. 8).
9, S810, and S904 in FIG. 9).
Code L stored in various table units 109 in FIG.
The ED table is referred to, and the code LED data is assigned to the register S.

In the code LED table, for example, FIG.
As shown in FIG. 2, chord LED data indicating which scale note in one octave is a constituent note is associated with each of various chords having note name C as a root. Therefore,
The register S has a code L corresponding to the changed code type.
ED data will be stored.

Next, in step S1204, the register T stores 12-bit data of "080" in hexadecimal notation. In this register, only the bit corresponding to note name C is "1" in the initial state, and the note name of the root note of the chord indicated by the code LED data of the register S is C. Is shown.

Subsequently, step S1205 → S1206
By the loop processing of → S1207 → S1205, the 12-bit code LED data of the register S and the 12-bit data indicating the route of the register T are rotated to the left by the value of the register X indicating the changed route, respectively ( Bit rotation).

As a result, in the 12-bit code LED data of the register S, the bit corresponding to the constituent sound of the changed code becomes “1”, and the bit of the register T becomes “1”.
In the 2-bit data, the bit corresponding to the changed code root becomes “1”. Step S1210
In S1211, the contents of these registers S and T are stored in the registers CL and RL as code LED output data and route data. FIG. 16 shows an example of each chord LED output data obtained when the chord type is a major chord and the root note name is C to B, obtained by the above-described rotate processing.

Subsequently, at step S1212, the register C
The content of LT is cleared to “0” and step S1213
And the content of the register LF is changed to the LED 11 corresponding to the route.
01 (FIG. 11) is set to a value “1” indicating that the lighting is being performed. These will be described later.

In step S1214, the code LED data indicating the changed constituent sound of the chord is stored, and the contents of the register CL are stored in the LED section 103 (FIG. 1).
Data I ₀ to I ₀ are stored in Port A of the latch 1104 in FIG.
₁₁ is output as a latch enable signal LE to PortB.
Is set. As a result, LE 1104
D is output drive output signals Q ₀ to Q ₁₁ is, LED1101 code key corresponding to the changed chord member of is turned on.

Thus, the code change handling process of step S406 in FIG. 4 is completed. Next, the route blinking process will be described in detail with reference to the operation flowchart of FIG. In this operation flowchart, the CPU 106 executes the control program stored in the program ROM 107 independently of the main flow program of FIG. 4 in response to an interrupt from the timer unit 114 of FIG. Implemented as an operation. In the case of the present embodiment, the time interval of the interruption from the timer unit 114 is set to 50 as in the case of the LED blink interrupt processing of FIG.
μsec.

First, in step S1301, the code L
The value of the register CLT, which is the ED timer, is incremented. When the value of the register CLT is 2000
If not, the determination in step S1302 is NO, and the route blinking interrupt process ends. As described above, the interrupt of the route blinking interrupt processing is generated every 50 μsec.
The value of LT is incremented. Therefore, register C
Until the value of LT becomes 2000, the processing after step S1303 is not executed for 100 msec. This 100 msec indicates the route of the LED 1101 (FIG. 1).
It becomes the blinking interval of 1).

When the value of the register CLT becomes 2000,
The determination in step S1302 is YES, and the process in step S1303 is executed. In step S1303, the value of the register CLT is reset to "0" again for the next 100 msec counting operation.

Next, in step S1304, it is determined whether or not the content of the register LF is "1", that is, whether or not the LED 1101 (FIG. 11) corresponding to the route is being lit.

If the LED corresponding to the route is being lit and the determination in step S1304 is YES, in step S1305, the content of the register LF is changed to a value indicating that the LED 1101 corresponding to the route is turned off. Set to "0". Then, in step S1306, the content obtained by subtracting the content of the register RL from the contents of register CL is supplied as the data I ₀ ~I ₁₁ to PortA latch 1104 of FIG. 11 of the LED unit 103 (Figure 1). In this case, the bit corresponding to the root sound is set to “0” by the above subtraction processing, so that the LE corresponding to the root
D1101 is turned off.

Conversely, if the LED corresponding to the route is turned off and the determination in step S1304 is NO, in the next step S1307, the content of the register LF is changed to
The value is set to “1” indicating that the LED 1101 corresponding to the route is being lit. Then, step S13
At 08, the content of the register CL is
Data I is stored in Port A of latch 1104 in FIG. 11 (FIG. 1).
It is given as ₀ ~I _11. In this case, since the bit corresponding to the root sound is “1”, the LE corresponding to the root is
D1101 is turned on.

By repeating the above two operations alternately every 100 msec, the LED indicating the route is displayed.
1101 flashes, which allows the user to easily determine which key corresponds to the root.

[0116]

According to the present invention, when a user knows a chord name and wants to know its constituent sounds, the user can depress only one key on the keyboard means or by a predetermined route designating means. Specifies the root, by specifying the code type by the code type specification means, it is possible to broadcast <br/> the configuration of the chord to be determined from them in chord member notification means.

In this case, since the code type determining means determines a new code type based on the currently determined code type and the code type specified by the code type specifying means, the user is now determined. New code types can be specified one after another in association with the code types.

[0118] In addition, if you want to hand notified to the chord member notification means the component sounds of the defined code, issued the constituent notes of the code
Ramp indication means provided for each key on the keyboard
By turning on the light, the user can hear or see
You can recognize over de constituent notes, and by flashing the like to Rukoto the configuration sound corresponding to the root of the code, for example, by inversion type even when the configuration of the chord is indicated, the user It is possible to easily identify which constituent sound corresponds to the root.

In addition to the functions described above, when the user wants to know what kind of code the key pressed by himself / herself constitutes, the user presses two or more keys with the keyboard means.
The chord display means can display a chord route and a chord type in which each scale tone corresponding to each depressed key is a constituent sound.

As described above , according to the present invention, it is possible to refer to a code in a free format.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a configuration diagram of a numeric keypad.

FIG. 3 is a configuration diagram of an LCD display unit.

FIG. 4 is an operation flowchart of a main flow.

FIG. 5 is a diagram showing registers used in the embodiment.

FIG. 6 is an operation flowchart of a code switch process.

FIG. 7 is an operation flowchart of an LED blink interrupt process.

FIG. 8 is an operation flowchart of a code key process.

FIG. 9 is an operation flowchart of a ten-key process.

FIG. 10 is a diagram showing a code transition table.

FIG. 11 is a configuration diagram of an LED unit related to a code change handling process.

FIG. 12 is an operation flowchart of a code change handling process.

FIG. 13 is an operation flowchart of a route blink interrupt process.

FIG. 14 is a diagram showing registers related to a code change handling process and a route blinking interrupt process.

FIG. 15 is a diagram showing a code LED table.

FIG. 16 is a diagram illustrating the operation of the code change handling process.

FIG. 17 is an explanatory diagram of a chord key area and a melody key area.

[Explanation of symbols]

 101 Keyboard part 102 Key press detection circuit 103 LED part 104 Switch part 105 Switch detection circuit 106 CPU 107 Program ROM 108 Working RAM 109 Various table parts 110 Musical sound generation circuit 111 D / A converter 112 Amplifier 113 Speaker 114 Timer part 115 LCD display Department

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-125995 (JP, A) JP-A-56-122095 (JP, A) JP-A-62-247392 (JP, A) 171 (JP, U) Japanese Utility Model Showa 58-175589 (JP, U) Japanese Utility Model Showa 58-23389 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G10H 1/38 G09B 15 / 00

Claims (8)

(57) [Claims] 1. A and route designating means for designating a route, and code type designation means for designating a code type, code type specified by the code type designating means and the new code type from the code type that is currently determined and code type determining means for determining the a chord member informing means for informing the configuration of the chord is determined from the specified route in the routing means and the determined code type in the code type determination means, the A code dictionary device comprising: 2. The apparatus according to claim 1, wherein said chord configuration sound notification means includes a display and
In at least one fine sound, to notify the configuration of the chord to be determined, the code dictionary apparatus according to claim 1, characterized in that. 3. A keyboard means for intends row designation <br/> route or code component tones, and code type specification means that specifies the code type, 2 key or keys in the keyboard unit key depression In this case, a chord discriminating means for discriminating a chord having each scale tone corresponding to each depressed key as a constituent sound, and a root and a chord type of the chord discriminated by the chord discriminating means are displayed. Code display means, when only one key is pressed on the keyboard means, route determination means for determining a route corresponding to the pressed key, code designated by the code type designation means Code type determining means for determining a new code type from the type and the currently determined code type; and a code type determined by the code type determining means and a route determined by the route determining means. to inform the constituent notes of the code Code dictionary and wherein the chord member notification means, to have a that. 4. The method according to claim 1, further comprising the step of: determining, when the result of the determination by the chord determination means is undetermined, that the scale of the scale corresponding to each key depressed by the keyboard means has the highest scale. The chord dictionary device according to claim 3, wherein a low scale tone is determined as a root. 5. The code type determining means includes: a new code that can be determined from all code types that can be specified by the code type specifying means and all code types that can be presently determined as being present; The type is stored as a code transition table, and by referring to the code transition table based on the code type specified by the code type specifying means and the currently determined code type, a new code type corresponding to the code type is determined. The code dictionary device according to any one of claims 1 to 4, wherein: 6. The code dictionary device according to claim 1, wherein the chord configuration sound notification means is a lamp display means provided for each key on a keyboard. Wherein said chord member notifying means is a Could encoding pronunciation means a configuration of the chord to be determined, that the code dictionary device according to any one of claims 1 to 5, wherein . 8. The chord dictionary according to claim 6 , wherein the lamp display means displays a constituent sound corresponding to a root of the chord to be displayed, separately from constituent sounds other than the root. apparatus.