JPH07319462A - Radio equipment for transmitting midi data - Google Patents

Abstract

PURPOSE:To provide a radio equipment for transmitting MIDI data in which an operation specification at the time of supplying a power source can be initially set to the same operation specification as that before a power supply is turned off. CONSTITUTION:This device is a radio equipment for transmitting MIDI data having a radio means 18 which transmits and/or receives a radio signal modulated based on MIDI data, an unlock type switch 13 for setting an operation specification of the radio means 18, and a control section 11 setting the operation specification based on a switch signal of the unlock type switch 13 and controlling the radio means 18 according to the set operation specification, further the device is provided with a memory means 22 which is constituted so as to be electrically rewritable and stores operation specification data indicating the operation specification set by the control section 11 and a backup means 22 backing up the memory means 22, and the control section 11 controls the radio means 18 based on the up-to-date operation specification data stored in the memory means 22 at the time of supplying a power source.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a MIDI (Musical Instrument) used for transmitting performance information such as pitch information, velocity information, tone color information and control information.
Digital Interface) signals are transmitted to keyboards, MIDI guitars and other performance devices, tone generators, sequencers, and other M
The present invention relates to a radio device for MIDI data transmission for transmitting and receiving between IDI musical instruments.

[0002]

2. Description of the Related Art As a radio device for transmitting MIDI data of this type, the applicant has used a radio signal between a keyboard as an electronic musical instrument body and a sound source device separate from the keyboard to transmit MIDI data. We have already proposed what to transmit (Japanese Patent Application No. 6-72463). This MIDI data transmission wireless device is connected to a MIDI musical instrument, and
A transmission / reception unit (radio unit) for transmitting / receiving a radio signal modulated based on I data, an unlock switch for designating operation specifications such as a transmission / reception channel of the transmission / reception unit, a transmission control mode, and an unlock switch. A control unit that controls the transmission / reception unit based on the switch signal and a ROM that stores initial operation specification data for setting initial operation specifications when the power of the transmission / reception unit is turned on are provided.

In this conventional radio apparatus for transmitting MIDI data, when the power is turned on, the control section reads the initial operation specification data of the transmitting / receiving section from the ROM, sets the operation specification based on the initial operation specification data, and sets the operation. Control the transceiver according to the specifications. That is, the conventional MIDI data transmission wireless device is initially set to a use state preset by the manufacturer. For this reason, the user operates the unlock type switch according to the usage status of the connected MIDI musical instrument after the power is turned on.
The default operating specifications such as transmission / reception channels have been changed for ease of use.

In this case, the initial operation specification data is stored in the ROM for the following reason. That is, with the recent miniaturization of electronic musical instruments, it is also necessary to miniaturize the radio device for MIDI data transmission, so that a large switch such as a rotary switch cannot be used.
It is necessary to use unlocked switches such as small push switches and thin numeric keypad switches. However, the unlock type switch does not have a memory function by itself, unlike a rotary switch or the like which has a memory function by itself due to contact between a fixed contact and a movable contact. Therefore, the CPU counts the number of times the unlock switch is pressed, and changes the initially set operation specification according to the count value. As a result, when the power is turned off, the count value stored in the CPU, that is, the operation specification data of the changed channel or the like is erased. Therefore, it is necessary to store the initial operation specification data in the ROM in advance in order to initialize the operation specifications of the transmitting / receiving unit when the power is turned on.

[0005]

However, the conventional MI
In the wireless device for DI data transmission, when the power is turned off and then turned on again, the operation specifications of the transmission / reception unit changed to a user-friendly state are based on the original operation specification data stored in the ROM. The operating specifications, that is, the initial operating specifications preset by the manufacturer, are uniformly set. Therefore, there is room for improvement in the conventional MIDI data transmission device in that the operating specifications of the transmission / reception unit must be changed by an unlock switch every time the power is turned on so that the user can use it easily. It was

The present invention has been made in view of the above points, and it is possible to initially set the operating specifications when the power of the wireless means is turned on to the same operating specifications as before the power is turned off.
It is an object of the present invention to provide a wireless device for transmitting IDI data.

[0007]

In order to achieve the above object, a radio device for transmitting MIDI data according to claim 1 has a MID.
MIDI for transmitting performance information connected to the I instrument
A wireless means for transmitting and / or receiving a wireless signal modulated based on data, an unlocking switch for specifying an operating specification of the wireless means, and an operating specification set based on a switch signal of the unlocking switch A wireless device for MIDI data transmission having a control unit for controlling wireless means in accordance with the set operation specification, the operation specification data being electrically rewritable and representing the operation specification set by the control unit. The control unit is configured to control the wireless unit based on the latest operation specification data stored in the memory unit when the power is turned on, and the memory unit stores the memory unit and the backup unit that backs up the memory unit. It is characterized by being

According to a second aspect of the present invention, there is provided a radio device for transmitting MIDI data, which is connected to a MIDI musical instrument and which transmits and / or receives a radio signal modulated based on MIDI data for transmitting performance information. MIDI data transmission having an unlocking switch for designating an operating specification of the wireless means, and a control unit for setting the operating specification based on the switch signal of the unlocking switch and controlling the wireless means according to the set operating specification A wireless device for use in electronically rewritable, comprising non-volatile memory means for storing operation specification data indicating operation specifications set by the control section, and the control section is provided with the memory means when the power is turned on. It is configured to control the wireless means based on the latest operation specification data stored in.

A radio device for transmitting MIDI data according to a third aspect is the radio device for transmitting MIDI data according to the first or second aspect, in which other non-volatile memory means for storing initial operation specification data of the radio means and a lock are provided. The control unit further includes one of the switch, and when the power supply is turned on, when the operation specification data is not stored in the memory means,
It is characterized in that the wireless means is controlled based on the initial operation specification data stored in one of the other non-volatile memory means and one of the lock switches.

[0010]

According to the radio device for transmitting MIDI data according to the first aspect, after the power is turned on, when the user sets the operating specifications such as the channel of the radio means and the transmission control mode by the unlock type switch, the setting is made. Since the operation specification data indicating the operation specification is stored in the memory means that is backed up, it is retained even when the power is turned off. On the other hand, when the power is turned on again, the control unit controls the wireless means based on the latest operation specification data stored in the memory means. For this reason, the use state at the time of turning on the power of the wireless means, that is, the operation specification can be initialized to the same operation specification as before the power is turned off.
The transmission of IDI data can be started.

According to the radio device for transmitting MIDI data according to claim 2, in the same manner as the radio device for transmitting MIDI data according to claim 1, when the power is turned on, the control unit stores the non-volatile memory means. The wireless means is controlled based on the latest operating specification data. Therefore, the operating specifications when the power of the wireless unit is turned on can be initialized to the same operating specifications as before the power was turned off.

According to the radio device for transmitting MIDI data of the third aspect, when the power is first turned on after the device is shipped, the operation specification data is not stored in the memory means, so that the control unit is the ROM or the lock type. The wireless means is initialized based on the initial operation specification data stored in the switch. That is, the wireless means is initially set to the operating specifications preset by the manufacturer. On the other hand, once the user sets the operating specifications by the unlock switch, the operating specification data representing the set operating specifications is stored in the memory means. Therefore, when the power is turned off and then turned on again, the operation specification data is stored in the memory means. Therefore, the control unit sets the wireless operation based on the latest operation specification data stored in the memory means. Control means. Therefore, the operating specifications when the power of the wireless unit is turned on can be initialized to the same operating specifications as before the power was turned off. If the memory means fails,
Since the operation specification data is not stored in the memory means,
The control section initializes the wireless means based on the initial operation specification data stored in the ROM or the lock switch.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A radio apparatus for transmitting MIDI data according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a block diagram of a MIDI musical instrument system 1 to which a radio device for transmitting MIDI data according to this embodiment is applied. As shown in the figure, this MIDI musical instrument system 1 includes four keyboards (MIDI musical instruments) 2a, 2
b, 2c, 2d (hereinafter, referred to as "keyboard 2" when the keyboards are not distinguished). Each keyboard 2 includes a sound source device (MIDI musical instrument, not shown) and a transmitting / receiving device (MIDI device for transmitting MIDI data) 3, and an antenna 4 for transmitting / receiving a wireless signal is attached to each transmitting / receiving device 3. Has been.

In this MIDI musical instrument system 1, each keyboard 2 is configured to control the sounding of the other keyboard 2 by transmitting a radio signal based on MIDI data to the other keyboard 2. As a result, it is possible to give an ensemble effect to the performance, or to preset different tone colors and sound qualities for each keyboard 2 so that only the desired keyboard 2 can sound. Specifically, as shown in FIG.
The transmission frequency of the radio signal transmitted by a is f1 (Ch. 1)
And the reception frequency of the radio signal received by the keyboards 2b and 2c is set to f1 (Ch. 1), the keyboard 2a can be operated by key operation.
a transmits a radio signal modulated based on MIDI data, and the keyboards 2b and 2c receive the radio signal and demodulate into MIDI data, and sound is generated based on the demodulated MIDI data. Also, from the above setting state,
By setting the transmission frequency of the keyboard 2d and the reception frequency of the keyboard 2c to f2 (Ch. 2) respectively, the keyboard 2a sets the keyboard 2b, and
The keyboard 2d can also control the pronunciation of the keyboard 2c separately.

The sound source device described above generates a musical tone corresponding to a key depression of the keyboard 2 in which it is incorporated and a musical tone corresponding to MIDI data transmitted from another keyboard 2. The transmission / reception device 3 can be set to be switched to either the transmission mode or the reception mode, and in the transmission mode, it corresponds to a performance signal such as a note-on signal or a note-off signal output from the keyboard 2. While transmitting the radio signal modulated with the MIDI data to the other keyboard 2, in the reception mode, the radio signal transmitted from the other keyboard 2 is received and the MIDI data is demodulated from the received radio signal.

Next, the configuration of the transmitting / receiving device 3 will be described with reference to the block diagram of the transmitting / receiving device 3 shown in FIG.
As shown in the figure, the transceiver 3 includes a CPU 11, a control data storage unit 12, a switch unit 13, a MIDI data reception unit 14, a transmission data temporary storage unit 15, a control signal output unit 16, a transmission data output unit 17, and a transmission / reception unit. Department (wireless means) 1
8, reception data input unit 19, MIDI data transmission unit 2
0, an assigner 21, and a setting storage unit 22.

The CPU 11 controls all operations of the transmission / reception device 3, and specifically, the switch unit 13
ON / OFF detection of the switch, initial operation specification data of various operation specifications at the time of first power-on of the transmission / reception section 18 designated by the switch section 13, and operation specifications stored in a setting storage section 22 described later. Initial operation specification setting control at power-on executed based on each of the data, MID exchanged with the keyboard 2
I data transmission / reception control, writing / reading to / from the temporary storage unit 15, MIDI data writing / erasing to / from the assigner 21, and transmission / reception switching control, transmission / reception channel switching control, and transmission / reception data of the transmission / reception unit 18. Controls transmission.

The control data storage unit 12 includes an operation program for the CPU 11 and a transmission / reception unit 1 having a plurality of channels.
The transmission and reception channel control data for each channel number 8 are stored.

The switch section 13 includes a transmission control mode selection switch, which will be described later, a channel switch which is an unlock type push switch for selecting the transmission / reception channel (Ch.) Of the transmission / reception section 18 as one of a plurality of channels, and a later-described channel switch. Initial setting switch (lock type switch)
And a free channel automatic search switch for automatically searching for a free channel from a plurality of transmission / reception channels (all not shown).

The transmission control mode selection switch is composed of a transmission mode switch, a reception mode switch, an automatic switching mode switch and a performance mode switch, and these switches are all composed of unlock type push switches. The transmission mode switch and the reception mode switch are switches for setting the transmission / reception device 3 in the transmission mode (transmission state) and the reception mode (reception state), respectively, and when either switch is turned on, transmission / reception is performed. The device 3 is in the manual mode. The automatic switching mode switch is a switch for setting the transmission / reception device 3 in the automatic switching mode.
The transceiver 3 is automatically switched to the transmission mode or the reception mode. The transmission mode switch and the reception mode switch are applied in preference to the automatic changeover mode switch, and the transmission mode switch or the reception mode switch is irrespective of the ON / OFF state of the automatic changeover mode switch. When turned on, the transmission / reception device 3 is preferentially set to the manual mode, and becomes the transmission mode or the reception mode. The performance mode switch is a switch that is turned on when the transmitting / receiving unit 18 is functionally separated from the keyboard 2 and the keyboard 2 is operated as an independent MIDI musical instrument, and is applied in preference to the above three switches.

The initial setting switch is a transmission / reception channel,
It is a switch for performing initial setting of transmission control mode, transmission transmission speed, and initial operation specifications of the transmission / reception unit 18, such as execution of automatic free channel search processing, that is, various operation specifications when the power is turned on. The number of DIP switches is equal to the sum of the respective set numbers (for example, the number of channels). By operating this initial setting switch, the user can specify the above-mentioned initial operation specifications of the transmission / reception unit 18 as desired operation specifications. If the stored contents of the setting storage unit 22 are erased, such as when the backup battery of the setting storage unit 22 described later fails, the CPU 11
It is detected that the contents stored in the setting storage unit 22 are lost, and the transmission / reception unit 18 is initialized to the operation specification designated by the initialization switch.

The MIDI data receiving section 14 is an interface circuit and converts the MIDI data of the serial data output from the keyboard 2 into parallel MIDI data.

The transmission data temporary storage unit 15 is a so-called F
When the transmitter / receiver 3 is in the transmission mode, the MIDI data output from the keyboard 2 main body via the MIDI data receiving unit 14 is a transmission data temporary storage unit 15 and is composed of an IFO (First-in First-Out) memory. Are sequentially written to. The written MIDI data is stored in the CPU
The data is read in the order of writing by 11 and is transmitted to the other keyboard 2 by a wireless signal from the transmitting / receiving unit 18. On the other hand, when the transceiver 3 is in the reception mode, the transceiver 1
The MIDI data transmitted from the other keyboard 2 is sequentially written into the transmission data temporary storage unit 15 via the data reception unit 8 and the reception data input unit 19. Written M
The IDI data is read by the CPU 11 in the order of writing and is output from the MIDI data transmitting unit 20 to the keyboard 2.

The control signal output section 16 outputs a transmission / reception control signal, a transmission channel control signal,
And a reception channel control signal to the transmission / reception unit 18.

The transmission data output unit 17 converts parallel MIDI data based on the MIDI data read from the transmission data temporary storage unit 15 into serial MIDI data.

The transmitting / receiving unit 18 is not particularly limited, but may be F
An M transceiver, which has a transmitter for transmitting a radio signal and a receiver for receiving a radio signal, and has a transmission / reception frequency of 43
The 0 MHz band, the transmission output is 10 mW, and the transmission / reception channels are 40 channels. The transmission unit frequency-modulates the high frequency signal based on the MIDI data input to the transmission / reception device 3 to generate a radio signal and outputs the radio signal from the antenna 4. The receiving unit receives a wireless signal transmitted from another keyboard 2 via the antenna 4, and
The radio signal is demodulated into MIDI data and output to the reception data input unit 19.

The reception data input section 19 converts the serial MIDI data output from the reception section of the transmission / reception section 18 into parallel MIDI data.

The MIDI data transmission unit 20 converts parallel MIDI data based on the MIDI data read from the transmission data temporary storage unit 15 into serial MIDI data and outputs it to the keyboard 2.

The assigner 21 is a memory and has a MID
The ON / OFF states of all the note numbers input to the I-data receiving section 14 and the received-data input section 19 for all MIDI channels are stored.

The setting storage unit 22 is composed of a RAM and a backup battery that backs up the RAM.
Even if the power of the transceiver 3 is turned off, the written data is retained. This setting storage unit 22
When the user operates the channel switch or the transmission control mode switch to set the operation specification, the CPU writes the operation specification data indicating the operation specification at a predetermined address. Specifically, when the operation specification is changed by the transmission control mode switch or the like, the CPU 11
A flag for each operation specification, for example, an automatic switching mode flag and a transmission / reception flag, which will be described later, is set in the internal register, and data "1" indicating that the flag is set is set in each operation of the setting storage unit 22. Write in the address specified in advance for each specification item. On the other hand, CP
When the flag that has been set is turned off, U11 rewrites the data "1" already written in the setting storage unit 22 into the data "0". That is, the setting storage unit 22 stores the latest operation specification data indicating the operation specification after the change by the user.

Next, regarding the operation outline of the transmitting / receiving apparatus 3,
The automatic switching mode and the manual mode described above will be described separately.

In the automatic switching mode, the transmitter / receiver 3 is normally used.
By setting the transmission / reception unit 18 to the reception mode,
Both the MIDI data input from the keyboard 2 via the MIDI data receiving section 14 and the MIDI data input from another keyboard 2 via the transmitting / receiving section 18 are in a standby state in which they can be received. In this standby state, the keyboard 2 is received via the MIDI data receiving unit 14.
When the MIDI data is input from, the transmission / reception unit 18 is automatically set to the transmission mode, and the input MIDI data is transmitted to another keyboard 2 via the transmission data output unit 17 and the transmission / reception unit 18. On the other hand, when MIDI data is input from another keyboard 2 via the transmission / reception unit 18 and the reception data input unit 19, the transmission / reception unit 18 is automatically set to the reception mode, and the input MIDI data is set to M
The data is output to the keyboard 2 via the IDI data transmission unit 20.

In the manual mode, either the transmission mode or the reception mode is alternatively selected. That is, in the manual mode, the keyboard 2 can be used by fixing it to either the performance device or the tone generator device. When the transmission mode switch is turned on, the transmission / reception unit 18 is set to the transmission mode, and thereafter,
From the keyboard 2 via the MIDI data receiving unit 14 to M
When the IDI data is output, the MID is sent to another keyboard 2 via the transmission data output unit 17 and the transmission / reception unit 18.
Send I data. On the other hand, when the reception mode switch is turned on, the transmission / reception unit 18 is set to the reception mode, and thereafter, MIDI data is input from another keyboard 2 via the transmission / reception unit 18 and the reception data input unit 19. , And outputs the input MIDI data to the keyboard 2 via the MIDI data transmission unit 20.

Next, the operation of the transmission / reception device 3 will be specifically described with reference to the flow charts of FIGS. In addition, unless otherwise specified, the processes described below are
All are performed by the CPU 11. Further, various flags listed below are used for these processes. These flags in the left column respectively indicate that the transmission / reception device 3 is in the state in the right column when set by the CPU 11. Transmission / reception flag: Transmission mode state Automatic switching mode flag: Automatic switching mode state Switchable flag: State immediately after shifting to automatic switching mode, or in the automatic switching mode, after reception or transmission is completed once, next transmission Or waiting state until reception starts

First, an initial routine for making initial settings when the power is turned on will be described with reference to FIG. When the power is turned on, the CPU 11 reads out each mode flag (meaning operation specification data) stored in the setting storage unit 22 (step S1). If the operation specification data is not stored, or if only part of it is stored, the initial operation specification data specified by the initial setting switch is read for other operation specification data except that part. . That is, the operation specification data stored in the setting storage unit 22 is read out prior to the initial operation specification data set by the initialization switch. Next, it is determined whether or not the operation specification data indicating the transmission control mode is designated as the automatic switching mode (step S2), and when the automatic switching mode is set, the automatic switching mode setting process is performed ( After step S3), the process proceeds to the main routine. When it is determined in step S2 that the automatic switching mode is not designated, it is determined whether or not the transmission mode is designated (step S4). When the transmission mode is designated, the transmission setting process is performed (step S5) and then the process proceeds to the main routine. When the transmission mode is not designated, the reception setting process is performed (step S6) and the process proceeds to the main routine. . In step S1, the operation specification data and the initial operation specification data for all the operation specifications are read out, and then the operation specification setting process is performed based on these operation specification data. However, in the present embodiment,
Only mode setting and channel setting will be described as a representative.

Next, the automatic switching mode setting routine will be described with reference to FIG. This routine is a process for setting the transmission / reception unit 18 to the automatic switching mode when the operation specification data indicates the setting of the automatic switching mode.

First, the channel number designated by the operation specification data is read (step S11), and the receiving channel control data (first local oscillation frequency data of the receiving section in the receiving mode) corresponding to this channel number is set as the control data. The data is read from the storage unit 12 (step S12). Then, a reception channel control signal based on the read reception channel control data is output to the transmission / reception unit 18 via the control signal output unit 16 (step S
13). At this time, the reception data input unit 19 is in a state where the reception data can be input, and the reception data input unit 1
9. Received data input section from 9 reception interrupt processing, that is, from the other keyboard 2 to the transmission / reception section 18 in the reception mode.
When the MIDI data is input via the reception data input unit 19, the process for automatically outputting the MIDI data to the keyboard 2 is permitted (step S14).

At this time, the MIDI data receiving section 14 is also in a state of being capable of receiving MIDI data, and the MIDI data receiving section reception interrupt processing from the MIDI data receiving section 14, that is, the keyboard in the transmission mode. 2 through the MIDI data receiving unit 14
When DI data is input, processing for automatically transmitting the MIDI data to another keyboard 2 is also permitted (step S15).

Next, the transmission / reception flag (usually in the reception mode, but in the transmission mode before the power is turned off, the transmission / reception flag is set) is reset ( (Step S16) While setting the transmitting / receiving unit 18 to the receiving mode, the automatic switching mode flag is set (step S17) and the switchable flag is set (step S18). As a result, the automatic switching mode setting routine is ended and the process returns to the main routine. In this case, the result of setting or resetting each flag is written in the setting storage unit 22 as operation specification data. Further, in the following processing, similarly, the operation specification data is written when each flag is set or reset.

Next, the transmission setting process and the reception setting process will be described with reference to FIGS. 5 (a) and 5 (b), respectively.

First, the transmission setting process is performed in step S5 described above, and is a process of setting the transmission / reception device 3 to the transmission mode when the operation specification data indicates the setting of the transmission mode. Specifically, by canceling the setting of the automatic switching mode, the setting is changed to the manual mode, and the transmission / reception device 3 is set to the transmission mode by the internal processing of the CPU 11, and, for example, the sound output based on the MIDI data from the keyboard 2 This is a process of setting the transmission / reception device 3 in a predetermined state when it is performed by another keyboard 2.

In this transmission setting process, first, the channel number indicated by the operation specification data is read (step S21), and the corresponding transmission channel control data is read from the control data storage unit 12 (step S2).
2) The transmission channel control signal based on this is output to the transmission / reception unit 18 (step S23). After that, the transmission / reception flag is set (step S24), and the transmission / reception control signal (press signal) is output (step S25).
The reception of the reception data input unit 19 is stopped (step S2).
6). In this state, only the MIDI data receiving unit 14 can receive, and the MIDI data receiving unit reception interrupt is permitted (step S27). Next, the automatic switching mode flag is reset (step S28) and the switchable flag is reset (step S2).
9). This completes the transmission switching process.

Next, the reception setting process will be described with reference to FIG.
Will be described with reference to. This process is a process of setting the transmission / reception unit 18 to the transmission mode when the operation specification data indicates the setting of the transmission mode. Specifically, the setting of the automatic switching mode is canceled to change the setting to the manual mode, and the transmitting / receiving unit 18 is set to the receiving mode by the internal processing of the CPU 11. This process is, for example,
This is performed when the keyboard 2 is exclusively used as a sound source device, that is, when the transmitting / receiving device 3 is set to play the keyboard 2 based on MIDI data from another keyboard 2. Further, this processing is almost the same as the above-described transmission setting processing, and the difference is that the transmission / reception unit 18 is not set to the reception state but is set to the transmission state. That is, the difference is that the reception control signal is output via the control signal output unit 16.

In this reception setting process, first, the channel number indicated by the operation specification data is read (step S31), and the reception channel control data corresponding to the channel number is read from the control data storage unit 12 (step S32). Next, the reception channel control signal based on the read reception channel control data is output to the transmission / reception unit 18 via the control signal output unit 16 (step S33). Then, the reception of the MIDI data receiving unit 14 is stopped (step S34). In this state, only the reception data input section can receive, and the reception data input section reception interrupt is permitted (step S35).
Next, after resetting the automatic switching mode flag (step S36) to the manual mode and also resetting the switchable flag (step S37), the process returns to the main routine.

Next, the main routine shown in FIG. 6 will be described. The main routine is a routine that is constantly and repeatedly performed. In this routine, first, it is determined whether or not the transmission / reception flag is set (step S
41). When the transmission / reception flag is set, that is, when the transmission mode switch is turned on or in the transmission mode in the automatic switching mode, the MIDI data transmitted from the keyboard 2 is transferred to another keyboard 2 If the transmission switch is not pressed in the manual mode, or if the transmission mode is not in the automatic switching mode, the transmission data output process for transmitting to the transmission data is performed (step S42). Performs MIDI data output processing of outputting the MIDI data transmitted from another keyboard 2 to the keyboard 2 (step S43).

After performing either of the two processes, it is determined whether or not the automatic switching mode flag is set (step S44). When the automatic switching mode flag is set, that is, when the transmission / reception device 3 is in the automatic switching mode, assigner writing, that is, the processing keyboard 2 side, of all the MIDI channels, After the process of writing data to the assigner 21 (step S45) and the assigner check process of determining whether all the data in the assigner 21 are "0" (step S46), step S1 is performed.
Return to 1 and repeat the main routine again. When the automatic switching mode flag is not set in step S44, that is, when the manual mode is set, the process returns to step S41 and the main routine is repeated again.

The CPU 11 monitors whether or not a switch signal corresponding to each operation specification item such as the transmission control mode selection switch and the channel switch of the switch unit 13 is input, and based on the input of the switch signal, the initial setting has already been completed. The operation specification of the changed channel or the like is changed, and the operation specification data representing the changed operation specification is written in the setting storage unit 22. In this case, when the operation specification data corresponding to the changed operation specification item has already been written, it is rewritten to the latest data, although not particularly limited thereto. When it is necessary to retain the already written operation specification data, such as when recording the writing of operation specification data as history data, the storage area of the setting storage unit 22 is grouped in advance for each operation specification item. Each time the operation specification data representing the changed operation specification item is created, the operation specification data is written to an address different from the address already stored, and the last written operation specification data is read when reading. .

As described above, according to the present embodiment, the user sets the operation specifications when the power of the transmitting / receiving unit 18 is turned on,
Since the same operating specifications as before the power is turned off can be initialized, the user can start transmitting MIDI data by the transmitting / receiving unit 18 immediately after the power is turned on. Further, by using the initial setting switch, the operating specification at the time of initial setting, that is, the operating specification at the time of first turning on the power can be designated as desired setting.

In the present embodiment, the setting recording section 2
The example in which the RAM is used as the second memory has been described, but the present invention is not limited to this, and the EEPROM (Elec
trically Erasable Programmable ROM) may be used. In this case, the backup battery can be eliminated. Furthermore, the setting switch is not limited to a DIP switch, and all other small lock type switches can be used.

Further, the present invention can be applied to transmission and reception between all MIDI musical instruments such as a musical instrument such as a keyboard and a MIDI guitar, a tone generator and a sequencer. Further, the wireless device also includes a device using infrared rays or the like.

[0052]

As described above, according to the radio apparatus for transmitting MIDI data of the present invention, when the power is turned on, the control unit sets the operation specification based on the latest operation specification data stored in the memory means. Since the wireless means is controlled in accordance with the set operation specification, the operation specification when the power of the wireless means is turned on can be initialized to the same operation specification as before the power is turned off. Therefore, the user can start transmitting MIDI data by wireless means immediately after the power is turned on.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a transmission / reception device according to an embodiment of the present invention.

FIG. 2 is a block diagram of a transmission / reception device according to an embodiment of the present invention.

FIG. 3 is a flowchart of initial setting after power-on of the transmission / reception device according to the embodiment of the present invention.

FIG. 4 is a flowchart of an automatic switching mode setting process.

FIG. 5 is a flowchart of a transmission setting process and a reception setting process.

FIG. 6 is a flowchart of a main routine.

[Explanation of symbols]

 2 keyboard 3 transmitter / receiver 11 CPU 13 switch unit 18 transmitter / receiver unit 22 setting storage unit

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Haruhiko Matsui 200 Terashima-cho, Hamamatsu City, Shizuoka Prefecture Kawai Musical Instrument Mfg. Co., Ltd.

Claims (3)

[Claims] 1. A wireless means connected to a MIDI musical instrument for transmitting and / or receiving a wireless signal modulated based on MIDI data for transmitting performance information, and an operating specification for the wireless means. A MIDI including an unlocking switch and a control unit that sets the operation specification based on a switch signal of the unlocking switch and controls the wireless unit according to the set operation specification.
A wireless device for data transmission, comprising memory means configured to be electrically rewritable, storing operation specification data indicating operation specifications set by the control unit, and backup means for backing up the memory means. The control unit is configured to control the wireless unit based on the latest operation specification data stored in the memory unit when the power is turned on.
A wireless device for IDI data transmission. 2. Radio means for transmitting and / or receiving a radio signal which is connected to a MIDI musical instrument and is modulated based on MIDI data for transmitting performance information, and an operating specification of the radio means. A MIDI including an unlocking switch and a control unit that sets the operation specification based on a switch signal of the unlocking switch and controls the wireless unit according to the set operation specification.
A wireless device for data transmission, comprising a non-volatile memory means configured to be electrically rewritable and storing operation specification data representing the operation specification set by the control section, wherein the control section is a power source. When it is turned on, the wireless means is configured to be controlled based on the latest operation specification data stored in the memory means.
A wireless device for IDI data transmission. 3. A non-volatile memory means for storing initial operation specification data of the wireless means, and one of a lock-type switch, further comprising:
When the operation specification data is not stored in the memory means, the wireless means is controlled based on the initial operation specification data stored in one of the other nonvolatile memory means and one of the lock switches. The wireless device for MIDI data transmission according to claim 1 or 2, wherein