JPH07199791A - Fingering state detection device and fingering state navigation device - Google Patents

Abstract

(57) [Abstract] [Purpose] When a beginner practices playing musical instruments according to the navigator, it is possible to obtain the fingering status and to navigate the fingering status by determining the correctness of the fingering. The purpose is to [Structure] The CPU 101 reads the fingering state for navigating from the ROM 102 and designates it every time when it is designated.
06, 10 magnetic field generators 108 via the latch 107
Are sequentially operated to sequentially generate a magnetic field from the loop coils of a total of 10 fingertips of the glove worn by the player. The CPU 101 includes a magnetic field detector 1 provided corresponding to each key for each magnetic field generation operation from each fingertip.
The six detection circuits 110 determine whether or not 11 detects a magnetic field.
It is detected by sequentially operating. As a result, CP
U101 obtains the player's fingering state and compares it with the designated fingering state for navigating to determine whether the player's fingering is correct, and to perform the navigation operation. Control.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for detecting a fingering state of a musical instrument and a device for navigating the fingering state.

[0002]

2. Description of the Related Art In learning the performance of an electronic keyboard instrument such as an electronic piano, it is important to acquire a correct fingering (fingering). If this is wrong, for example, a smooth sound (legato), I can't play fast sounds correctly.

Here, conventionally, in an electronic keyboard instrument or the like, a navigator for turning on, for example, an LED or the like provided corresponding to each key is provided in order to teach a player of information such as a key to be played. There is an electronic musical instrument.

[0004]

However, for beginners, there is a tendency for fingering to be performed differently from the designation of the musical score when the key is pressed because the key-pressing operation is performed so as not to be late for the instruction from the navigator. I had a problem that if I keep practicing like this, I may get a wrong fingering habit.

An object of the present invention is to obtain a fingering state when a beginner practices a performance according to a navigator, and to enable navigation of a fingering state by determining whether the fingering is correct or not. It is in.

[0006]

The first aspect of the present invention is as follows.
First, magnetic field generating means (magnetic field generator 108, loop coil 50) for generating a magnetic field from each finger operated by the performer.
3).

Next, there is a magnetic flux density change detecting means (magnetic field detector 111) for detecting a change in the magnetic flux density of the magnetic field applied to each of the plurality of performance operators (keys). And
A magnetic field generation means sequentially generates a magnetic field from each of the fingers operated by the performer, and a magnetic flux density change detection means detects a change in magnetic flux density for each magnetic field generation operation of each finger. It has a fingering state detecting means (step S1303 of FIG. 13 and key processing of FIG. 15 executed by the CPU 101) for detecting the fingering state of the player by detecting.

A second aspect of the present invention firstly has magnetic field generating means and magnetic flux density change detecting means similar to the first aspect. Next, the navigation means (automatic performance data stored in the ROM 102, which is executed by the CPU 101) for sequentially designating the fingering states of the performance operators to be performed by the performer is shown in FIG.
Step S1302 of 3 and the reading process of FIG. 14, and the navigator LED 105).

Each time the navigating means designates the fingering state of the performance operator, the magnetic field generating means sequentially generates a magnetic field from each of the fingers operated by the performer, and for each finger. 13. The fingering state detecting means (FIG. 13 executed by the CPU 101 of FIG. 13 executed by the CPU 101 in FIG. Step S
1303 and the key processing of FIG. 15).

Further, each time the navigating means designates the fingering state of the performance operator, the fingering state detected by the fingering state detecting means is compared with the fingering state designated by the navigating means. It has fingering state comparison means (step S1304 of FIG. 13 and comparison processing of FIG. 16 executed by the CPU 101).

In the above-mentioned second aspect of the present invention, further, the matching of the fingering state detected by the fingering state detecting means by the fingering state comparing means and the fingering state designated by the navigating means is detected. Navigation control means (step S1 in FIG. 13 executed by the CPU 101 for causing the navigation means to specify the fingering state of the next performance operator).
302 and the read processing of step S1401 in FIG. 14)
Can be configured to have

[0012]

According to the first aspect of the present invention, the fingering state can be always detected when the performer is performing a performance operation. As a result, for example, by displaying the detection result of the fingering state, the player can properly understand his or her fingering state.

In the second aspect of the present invention, as in the first aspect, it is possible to detect the fingering state when the performer is performing a performance operation, so that the navigating means can detect the fingering state. By performing navigation, the fingering state based on the playing operation and the fingering state designated by the navigation means are sequentially compared by the comparing means, so that the performer sequentially grasps the legitimacy of his or her fingering state. it can.

Further, only when the comparison means detects a match, the navigation control means causes the navigation means to specify the fingering state of the next performance operator, so that the performer can perform the operation in the performance operation. You can learn fingers properly.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. <Structure> FIG. 1 is a block diagram showing the entire structure of one embodiment according to the present invention.

In FIG. 1, first, the CPU 101 has a ROM 1
RAM based on the control program stored in
While operating using 103 as a work memory, the keyboard switch 104 is scanned to capture the operation state of each key, and at the same time, the automatic performance data and fingering information for performance of the music piece by the performer are read from the ROM 102.

A part of the keyboard switch 104 is shown in FIG. 2, but there are 48 keys from the C3 key to the B6 key, and each switch is numbered to represent the position from K0 to K47. ing.

As shown in FIG. 2, the navigator LED 105 moves from the position of the C3 key of the keyboard switch 104 to the B position.
It is provided at each position of 48 keys up to 6 keys,
The numbers indicating the positions from L0 to L47 are respectively attached. These 48 LEDs are sequentially controlled by the CPU 101 in order to guide (navigate) the key to be pressed next by the performer according to the key pressing information indicated by the automatic performance data stored in the ROM 102. It is turned on and off.

The decoder 106 is selected by the chip selection control signal CS0 output from the CPU 101, and decodes the input data D11 to D14 from the CPU 101 to output one of the 10 outputs QC0 to QC9. To activate.

Output data QC0 from the decoder 106
The QC9 is latched by the latch 107 in synchronization with the latch signal LTA from the CPU 101, and 10 pieces of output data KC0 that are active until the next different QC is output.
~ KC9, No. 1-No. 10 magnetic field generators 108 are input.

The magnetic field generator 108 will be described below. Here, the performer wears flexible right-hand glove 302 and left-hand glove 301 as shown in FIG. 3 on the right and left hands to be played. Each of the fingertips of these two gloves is provided with a total of 10 loop coils which are magnetic field generating elements. As shown in FIG. 4, each of the ten loop coils is driven by ten magnetic field generators 108 which use the output data KC0 to KC9 of the latch 107 as drive signals, respectively, and are shown in FIG. 4, respectively. A finger is associated.

The circuit configuration of one magnetic field generator 108 is shown in FIG. In FIG. 5, the latch 107 (FIG. 1) is provided at the base of the PNP transistor 502 via the resistor 501.
Output data KC is added. When this KC becomes 0 (low level), the transistor 502 is turned on. As a result, a current flows in the GND direction from the power supply VDD through the resistor 504, the loop coil 503 which is a magnetic field generation element, and the collector-emitter of the transistor 502, and the magnetic field is generated from the loop coil 503.

In this way, the above-mentioned glove (FIG. 3)
The ten loop coils 503 provided at each fingertip of
First, the output data KC0-K of the latch 107 from the right little finger to the right thumb, and then from the left thumb to the left little finger.
When C9 becomes active, it is driven (see FIG. 12 described later), and a magnetic field is generated in each.

Next, a magnetic field detecting operation for detecting which one of the 10 loop coils 503 provided at each fingertip of the above-mentioned glove is generating a magnetic field will be described.

First, the decoder 109 is selected by the chip selection control signal CS1 from the CPU 101,
By decoding the input data D8 to D10 input to the decoder 109, the select signals LC0 to LC0
Activate any one of the five.

Here, the detection circuits 110 of # 1 to # 6 are shown in FIG.
As shown in FIG. 6, each of the six key ranges is made up of eight keys. Then, the above-mentioned select signals LC0 to LC5
Is supplied to the buffer 113 in each detection circuit 110 in order to select any one of the detection circuits 110 of # 1 to # 6.

The respective detection circuits 110 correspond to the eight keys shown in the table of FIG. 6 for the respective key ranges, No. 1 to No. 8
8 magnetic field detectors 111 are included. The magnetic field detector 111 is composed of the switching type Hall IC shown in FIG. 7, and an example of its internal structure is shown in FIG.

This switching type Hall IC has an applied magnetic flux density-output voltage characteristic as shown in FIG. 9, and when a predetermined level of magnetic flux density is applied, the output level changes from high to low at the TTL level. To do.

Then, this switching type hall I
As shown in FIG. 10, C is installed below each key and detects the magnetic field generated by the loop coil 503 provided at the fingertips of the gloves 301 and 302 in FIG.

Next, the outputs O0 to O7 of the eight magnetic field detectors 111 in the detection circuit 110 of FIG. 1 are latched in the latch 112 by the latch signal LT from the CPU 101. When the buffer 113 is selected by the select signal LC from the decoder 109, the eight magnetic field detectors 111 for eight keys output from the latch 112 are output.
Output data QD0 to QD7 of
Is output to the CPU 101.

Next, FIG. 11 shows the loop coil 5 described above.
Control signals KC0 to KC9 for generating magnetic flux in
3 is an operation timing chart showing the relationship between the selection signals LC0 to LC5 for selecting the detection circuits 110 of # 1 to # 6.

When the select signals LC0 to LC5 are sequentially activated one by one, the detection circuits 11 of # 1 to # 6 are detected.
In one cycle T in which 0s are sequentially selected one by one, the control signals KC0 to KC9 are sequentially activated one by one to sequentially drive the ten magnetic field generators 108,
A magnetic field is sequentially generated from the ten loop coils 503 corresponding to each of the ten fingers.

As a result, in each cycle T, the eight magnetic field detectors 111 corresponding to the eight keys in the key range corresponding to the detection circuit 110 selected in that cycle correspond to each of the ten fingers. It is detected whether or not the ten loop coils 503 have captured the sequentially generated magnetic fields.

FIG. 12 is an operation timing chart of each signal in one cycle T (any of T0 to T5) shown in FIG. In the cycle T, the CPU 101 sequentially outputs 10 sets of pulses of the selection control signal CS0 and the input data D11 to D14, so that the decoder 106 outputs 10 output QCs (any one of QC0 to QC9).
Are sequentially output to the latch 107. At each time point when each of the 10 output QCs is determined, the CPU 101 sets 1
The pulses of 0 latch signals LTA are sequentially output to the latch 107. As a result, as shown in FIG. 12, in the cycle T, 10 pulses of the output data KC0 to KC9 are sequentially output from the latch 107 to the 10 magnetic field generators 108. Then, within the cycle T, 10
The magnetic field generators 108 sequentially generate magnetic fields for the 10 loop coils 503 connected to the magnetic field generators 108.

In cycle T, each time 10 pieces of output data KC0 to KC9 become active (low level), they are selected corresponding to cycle T.
The 8-bit magnetic field detection data O0 to O7 output in parallel from the eight magnetic field detectors 111 corresponding to the eight keys in the key range corresponding to any one of the detection circuits 110 of # 1 to # 6,
It is latched by the latch 112 in synchronization with the pulse of the latch signal LT from the CPU 101. As a result, in the cycle T, 10 sets of 8-bit magnetic field detection data O0-
O7 is 10 sets of 8-bit magnetic field detection data QD0 to QD
7 is output from the latch 112 to the buffer 113. In synchronization with this, the CPU 101 sends the buffer 113
To 10 pulses of the select signal LC (any one of LC0 to LC5 synchronized with the cycle T0 to T5) is output. Therefore, the buffer 113, in the cycle T, sets the above-mentioned 10 sets of 8-bit magnetic field detection data Q.
D0 to QD7 are replaced by 10 sets of 8-bit output data D0 to D
7 and outputs to CPU 101.

In the above-described manner, the CPU 101 has the following advantages:
It is possible to sequentially detect whether or not each of the ten fingers is pressing any of the eight keys in the key range corresponding to the detection circuit 110 selected in each cycle, and the six cycles of T0 to T5. It is possible to sequentially detect whether each of the ten fingers is pressing any of 8 keys × 6 = 48 keys. These 6 cycles are times which are normally shorter than the playing speed, and as will be described later, the above-mentioned 6 cycles in the key processing which is one step S1303 in the main operation flowchart shown in FIG. 13 executed by the CPU 101.
The cycle is executed once. <Operation> The operation of the embodiment having the above configuration will be described below.

FIG. 13 is a flow chart of the main operation executed by the CPU 101.
2 is realized as an operation for executing the control program stored in 2.

In FIG. 13, first, step S130.
At 1, the contents of the RAM 103 and the contents of a register (not shown) in the CPU 101 are initialized. Then, steps S1302 to S1305 are repeatedly executed.

In step S1302, the reading process shown in the operation flowchart of FIG. 14 is executed. First, in step S1401, the flag A in the RAM 103 is set.
It is determined whether F is 1. This flag is set to 1 when the fingering of the performer is correct and the contents of the finger position buffer and the comparison buffer match in the comparison processing of step S1304 of FIG. 13 described later (FIG. 16 step S1607).

Therefore, if this determination is NO, that is, if the fingering of the player is incorrect, steps S1402 to S14 for reading the next automatic performance data are performed.
The process of 04 is not executed, and the process proceeds to step S1405.

If the determination in step S1401 is YES, that is, if the fingering of the player is correct, the flag AF is reset to 0 in step S1402. And
In step S1403, using the value of the variable AD in the RAM 103 as an address, one or more sets of pitch data that are automatic performance data and finger position data that specifies fingering are read from the ROM 102 and stored in the RAM 103. The value of the variable AD is initially set to the storage address at the head of the automatic performance data on the ROM 102 in step S1301 of FIG.

Then, in step S1404, the variable AD
The value of is incremented. Further, step S140
In step 5, the navigator LED 105 corresponding to the pitch data read in step S1403 is turned on.

When the processing of step S1405 ends,
The operation flowchart of FIG. 14 is ended, and the read processing of step S1302 of FIG. 13 is ended. Next, in step S1303 of FIG. 13, the key processing shown in the operation flowchart of FIG. 15 is executed. Note that FIG. 15 also shows the finger positions and the identification numbers of the ten finger position buffers corresponding thereto at the same time. The ten finger position buffers identified by the identification numbers store fingering data indicating which key is pressed by the corresponding finger, and are stored in the RAM 103 of FIG. 1, respectively. It

First, in step S1501, the contents of the ten finger position buffers are cleared. After that, after 0 is set to the LC pointer in the RAM 103 in step S1502, the following values are incremented by 1 in step S1515 while it is determined that the value of the LC pointer becomes 5 in step S1514. The processing of steps S1503 to S1513 is executed. This L
The C pointer can take values from 0 to 5, and the value of this LC pointer is transferred from the CPU 101 of FIG.
By being input as bit input data D8 to D10, any one of the select signals LC0 to LC5 corresponding to the value of the LC pointer from the decoder 109 becomes active. Therefore, steps S1502 and S151
As described above with reference to FIG. 11, the control process of 5 and S1514 causes the process of sequentially operating the six detection circuits 110 of FIG. 1 corresponding to the cycles T0 to T5.

Next, in the repetition of the processing of steps S1503 to S1513, the RAM is stored in step S1503.
After 0 is set to the KC pointer in 103, the value of the KC pointer is incremented by 1 in step S1513, and the following steps S1504 to S1 are performed until it is determined in step S1512 that the value of the KC pointer becomes 9.
The processing of 511 is executed. This KC pointer is 0-9
Can take any value up to, and the value of this KC pointer is C in FIG.
By inputting 4-bit input data D11 to D14 from the PU 101 to the decoder 106, any one of the output data KC0 to KC9 corresponding to the value of the KC pointer becomes active via the latch 106 from the decoder 106. . Therefore, steps S1503, S
As described above with reference to FIG. 12, by the control processing of 1513 and S1512, the processing of sequentially generating magnetic fields in the ten loop coils 503 via the ten magnetic field generators 108 of FIG. 1 within one cycle T is executed. Will be done.

In the iterative processing of steps S1504 to S1511, first, in step S1504, the value of the KC pointer is input from the CPU 101 of FIG. 1 to the decoder 106 as 4-bit input data D11 to D14, so that the decoder 106 latches. Output data KC0 to KC corresponding to the value of the KC pointer via 107
When any one of C9 becomes active,
Any one magnetic field generator 108 is activated. In the activated magnetic field generator 108, as described above with reference to FIG. 5, a current is supplied to the loop coil 503 from the power supply VDD through the transistor 502, so that the loop coil 503 is operated.
Generates a magnetic field.

In step S1505, the value of the LC pointer is input from the CPU 101 of FIG. 1 to the decoder 109 as 3-bit input data D8 to D10, whereby the decoder 109 selects signals LC0 to LC5 corresponding to the value of the LC pointer. Any one of them becomes active. Then, the buffer 113 in any one of the detection circuits 110 of # 1 to # 6 corresponding to the activated select signal, the buffer 113 of the eight magnetic field detectors 111 for eight keys output from the latch 112. Output data QD0
The QD7 is output to the CPU 101 as output data D0 to D7. The CPU 101 acquires these data.

Next, in step S1506, it is determined whether or not the acquired data has an active bit having a value of 0. Now, the detection circuit 1 selected by the value of the LC pointer by the finger corresponding to the value of the KC pointer
When any one of the eight keys in the key range corresponding to 10 is pressed, only the output data of the magnetic field detector 111 corresponding to the key becomes the active value 0, and the other magnetic field detectors The output data of 111 is the inactive value 1.

When the determination in step S1506 is NO, all the eight keys in the key range corresponding to the detection circuit 110 selected by the value of the LC pointer are pressed by the finger corresponding to the value of the KC pointer. Therefore, after proceeding to step S1512, the value of the KC pointer is incremented by 1 at step S1513.

If the determination in step S1506 is YES, the key position of the depressed key is calculated, and the current K
A finger position buffer having an identification number corresponding to the value of the C pointer is determined. The key position is {(value of LC pointer)
X bit position having value 0} is calculated as any one of the 48 key positions 0 to 47.

Next, in step S1508, it is determined whether or not the acquired data has a plurality of active bits having a value of 0. If this determination is YES, 1
Since two or more keys have been simultaneously pressed with two fingers, which is not a normal performance, in step S1511, a finger position buffer having an identification number corresponding to the current KC pointer value determined in step S1507. Is cleared, and then the process proceeds to step S1512.

If the determination in step S1508 is NO, it is determined in step S1509 whether the content of the finger position buffer having the identification number corresponding to the current KC pointer value determined in step S1507 is not empty. To be done.

If the content of the finger position buffer is not empty and the determination in step S1509 is YES, it means that one finger simultaneously presses two or more keys in different key ranges, and thus in step S1511. After the content of the finger position buffer is cleared, the process proceeds to step S1512.

When the content of the finger position buffer is empty and the determination in step S1509 is NO, step S15
At 10, the key position calculated in step S1507 is written in the finger position buffer. Then, step S1
Proceed to 512.

As described above, the processes of steps S1504 to S1511 are performed in steps S1503 and S15.
13 and S1512 are executed corresponding to the KC pointer values 0 to 9, respectively, and the processes of steps S1503 to S1513 are performed as described above in steps S1502, S1515, and S1512.
The value of the LC pointer is 0 to 5 based on the control processing of 1514.
By executing the operation corresponding to each of the above, it is detected whether or not each of the ten fingers has pressed any one of the total 48 keys of the six key ranges, and the information is written in the finger position buffer. Be done.

When the key processing in step S1303 of FIG. 13 shown in the operation flowchart of FIG. 15 is completed as described above, the comparison processing shown in the operation flowchart of FIG. 16 is executed in step S1304. This process is a process of determining whether or not the key pressed by the player and the fingering when pressing the key are correct. A comparison buffer is used in this processing. The comparison buffer has exactly the same structure as the finger position buffer and is 10 buffers identified by 10 identification numbers. At each automatic performance timing, the finger corresponding to each comparison buffer determines which key. It stores fingering data indicating whether or not a key should be pressed, and is stored in the RAM 103 of FIG.

First, in step S1601, the number of pitch data of the automatic performance data read from the ROM 102 of FIG. 1 and held in the RAM 103 by the processing of step S1403 of FIG. 14 in the reading processing of step S1302 of FIG. Is written in the variable n in the RAM 103 of FIG.

Next, in step S1602, the RAM 103
1 is assigned to the pointer j in the table, and the value of the pointer j is incremented by 1 in step S1605,
The processes of steps S1603 and S1604 are executed until it is determined in 06 that the value of the pointer j is equal to the value of the variable n + 1.

In step S1603, the j-th pitch data k and finger position data m are read from the RAM 103. Then, in step S1604, finger position data m
The pitch data k is written in the m-th comparison buffer corresponding to.

The above-described processing of steps S1603 and S1604 is executed for all the sets of the pitch data to be currently depressed, which is indicated by the pointer j. After the above processing is completed and the determination in step S1606 becomes YES, in step S1607, step S1 in FIG.
It is determined whether the contents of the finger position buffer set by the key processing of 303 and the contents of the above-mentioned comparison buffer match.

Only when this judgment is YES, R
The flag AF in the AM 103 is set to 1. In this way, only when the key pressed by the performer and the fingering thereof are correct, the determination in step S1401 of FIG. 14 in the reading process of step S1302 of FIG. 13 becomes YES,
In step S1403, the reading of the automatic performance data is advanced, and the performer can proceed with the performance. Note that each time the determination in step S1401 in FIG. 14 becomes YES,
As described above, the value of the flag AF is reset to 0 in step S1402.

When the comparison process of step S1304 of FIG. 13 shown in the operation flowchart of FIG. 16 is completed as described above, the tone generation process shown in the operation flowchart of FIG. 17 is executed at step S1305.
In this process, it is determined for each of the ten fingers whether or not there is a change in the key depression state, and the sounding or silencing process is executed based on the determination result. Whether or not there is a change in the key pressing state for each of the ten fingers is determined by the contents of the finger position buffer storing the key pressing state of the ten fingers at the current processing timing and the finger position buffer. The determination is made by comparing the contents of the previous buffer storing the key pressing state of ten fingers at the previous processing timing, which has exactly the same structure as. This previous buffer is similar to the finger position buffer in the RAM 103 of FIG.
Memorized in.

First, in step S1701, the RAM 10
After 1 is assigned to the pointer i in 3, the step S17
The value of the pointer i is incremented by 1 in step 09, and the processes of steps S1702 to S1708 are executed until it is determined in step S1710 that the value of the pointer i is equal to 11. As a result, the process of comparing the current finger position buffer and the contents of the previous buffer for each of the ten fingers is repeated 10 times.

That is, in step S1702, RAM1
The pitch data of the i-th (i is the value of the pointer i) finger position buffer is written in the A register in 03, and step S
In 1703, the pitch data of the i-th previous buffer is written in the B register in the RAM 103.

Next, in step S1704, the register A
Then, it is determined whether the values of the register B and the register B are both 0.
If the determination is YES, it means that the finger indicated by the pointer i has not been pressed, so the flow advances to step S1709 to increment the value of the pointer i.

If the determination in step S1704 is NO, in the next step S1705, it is determined whether the pitch data is written in register A (the content is not 0) and the value in register B is 0. That is, it is determined whether or not the previous key was pressed and the key was pressed for the first time this time.

If this determination is YES, step S1
At 706, the pitch data of the A register is sent to a sound source (not shown), and a tone generation process is executed. Then, step S1709 is executed.

If the determination in step S1705 is NO, it is determined in step S1707 whether the value of register A is 0 and the pitch data is written in register B (content is not 0), that is, the previous time. Until then, it is determined whether or not the key has been pressed this time.

If this judgment is NO, that is, the pointer i
When it is determined that the key-depressed state of the finger corresponding to the value of is maintained both last time and this time, a new sounding process is not particularly executed, and step S1709 is executed.

If the determination in step S1707 is YES, it means that the key that was previously depressed by the finger corresponding to the value of the pointer i has been released this time. In this case, in step S1708, a sound source (not shown) is instructed to mute the musical tone having the pitch that was generated by pressing the key up to the previous time. Then, step S1
709 is executed.

The above steps S1702 to S1708 are the same as steps S1701, S1709 and S1710.
By repeating 10 times based on the control process of
The current finger position buffer and the contents of the previous buffer are compared for each of the ten fingers, and the sounding process or the muffling process is executed according to the comparison result.

When the above processing is completed and the determination in step S1710 is YES, the contents of the current finger position buffer are transferred to the previous buffer in step S1711, and step S1305 of FIG. 13 shown in the operation flowchart of FIG. Ends the pronunciation process.

The above steps S1302 to S1 in FIG.
By repeatedly executing the processing of 305, the player can learn accurate key depression and fingering.

[0074]

According to the first aspect of the present invention, it is possible to always detect the fingering state when the performer is performing a performance operation.

As a result, for example, by displaying the detection result of this fingering state, the player can properly understand his / her fingering state. According to the second aspect of the present invention, the fingering state based on the playing operation and the fingering state designated by the navigating means are sequentially compared by the comparing means, so that the performer can confirm the fingering state of his or her own. It becomes possible to grasp the legitimacy sequentially.

Further, the navigation control means causes the navigation means to specify the fingering state of the next performance operator only when the comparison means detects a match.
The performer can properly learn fingering in a performance operation.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment according to the present invention.

FIG. 2 is a layout diagram of keyboard switches and navigator LEDs.

FIG. 3 is a layout view of a magnetic field generation element.

FIG. 4 is a diagram showing a finger provided with each loop coil and a loop coil drive signal KC.

FIG. 5 is a configuration diagram of a magnetic field generator.

FIG. 6 is a diagram showing a key range corresponding to each detection circuit and a selection signal LC of the detection circuit.

FIG. 7 is a configuration diagram of a switching type Hall IC.

FIG. 8 is a diagram showing an internal configuration example of a Hall IC.

FIG. 9: Output-applied magnetic flux density characteristic diagram of switching type Hall IC

FIG. 10 is a diagram showing the relative positions of the loop coil on the fingertip of the glove and the hall element under the keyboard.

FIG. 11: Control signal KC and select signal LC of detection circuit
3 is an operation timing chart showing a relationship with

FIG. 12 is an operation timing chart of each signal in one cycle T corresponding to the select signal LC.

FIG. 13 is a main operation flowchart of one embodiment according to the present invention.

FIG. 14 is an operation flowchart relating to read processing.

FIG. 15 is an operation flowchart relating to key processing.

FIG. 16 is an operation flowchart relating to comparison processing.

FIG. 17 is an operation flowchart relating to sound generation processing.

[Explanation of symbols]

 101 CPU 102 ROM 103 RAM 104 Keyboard Switch 105 Navigator LED 106, 109 Decoder 107, 112 Latch 108 Magnetic Field Generator 110 Detection Circuit 111 Magnetic Field Detector 113 Buffer 301 Left Hand Globe 302 Right Hand Globe 501, 504 Resistance 502 PNP Transistor 503 Loop coil

Claims (3)

[Claims] 1. A magnetic field generation means for generating a magnetic field from each finger operated by a player, and a magnetic flux density change detection means for detecting a change in magnetic flux density of a magnetic field applied to each of a plurality of performance operators. A magnetic field is sequentially generated from each of the fingers operated by the performer with respect to the magnetic field generation means, and the magnetic flux density change detection means detects a change in the magnetic flux density for each magnetic field generation operation of each finger. A fingering state detecting device, comprising: fingering state detecting means for detecting a fingering state of a player by detecting a performance operator. 2. A magnetic field generating means for generating a magnetic field from each finger operated by a player, and a magnetic flux density change detecting means for detecting a change in magnetic flux density of a magnetic field applied to each of a plurality of performance operators. Navigating means for sequentially designating the fingering state of the performance operator to be performed by the performer, and to the magnetic field generating means every time the navigating means designates the fingering state of the performance operator. A magnetic field is sequentially generated from each of the fingers operated by the performer, and the magnetic flux density change detecting means detects the musical performance operator detecting the change in the magnetic flux density for each magnetic field generating operation of each finger. The fingering state detecting means for detecting the fingering state of the player, and the fingering state detected by the fingering state detecting means every time the navigating means specifies the fingering state of the performance operator. Status Navigation apparatus fingering state characterized by having a a fingering state comparison means for comparing the fingering state specified by said navigating means. 3. The navigating unit when the fingering state comparing unit detects a coincidence between a fingering state detected by the fingering state detecting unit and a fingering state designated by the navigating unit. The fingering state navigating apparatus according to claim 2, further comprising a navigating control means for performing the next designation of the fingering state of the performance operator.