JPH0697395B2 - Electronic musical instrument - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic musical instrument, and more particularly to an electronic musical instrument that performs a new function in addition to the function thereof. It is possible to improve the efficiency in.

Configuration of Conventional Example and Problems There have been commercialized electronic musical instruments to which an external storage device can be arbitrarily connected. In each case, the memory contents are created by the electronic musical instrument or supplied by the manufacturer.・ It was the setting data such as the tone color or the performance data of the keyboard. That is, the purpose of connecting the storage device to the electronic musical instrument is merely an extension of the original function of the electronic musical instrument,
It simply recorded or played back data related to the performance of electronic musical instruments.

Therefore, it has been customary to develop an operating program for the CPU, including all of the essential functions as well as the additional functions, in the electronic musical instrument in which most of the functions are controlled by the CPU. This means that when a product has various additional functions, it takes a lot of time to commercialize it, or when a product is commercialized in a short time, some extra additional functions have to be given up. means.

This shortens the cycle of commercialization of electronic musical instruments,
Moreover, it is considered to be a big problem in the present day when the evaluation of an electronic musical instrument is apt to be decided depending on whether the function is good or bad.

An object of the present invention is to make up for these problems in the related art. It is possible to commercialize an electronic musical instrument in a short period of time and to successively adapt it to an electronic musical instrument when an additional function is developed. The purpose is to expand the range of use of musical instruments.

Configuration of the Invention The present invention has a configuration in which a user can arbitrarily connect an external storage device, and is stored in the external storage device while utilizing all or most of the original functions of the electronic musical instrument. It is possible to execute a certain operating program, and by doing so, it is possible to arbitrarily connect to a storage device having different storage contents and additionally execute a function that cannot be performed by the electronic musical instrument alone.

Description of Embodiments An embodiment of the present invention will be described below with reference to block diagrams and flowcharts.

FIG. 1 shows an embodiment in which a magnetic disk device 2a is connected to the electronic musical instrument body 1 as an external storage device, and FIG. 2 is a flow chart showing the operation thereof. In FIG. 1, 3
Is a CPU that controls the overall operation of the electronic musical instrument body 1,
Drives normal memory control signal 10 and address bus 11,
It is assumed that the program or data on the memory 4a is read or written through the data bus 12 to perform the operation. However, at least a part of the memory 4a is composed of RAM.

First, the electronic musical instrument main body 1 performs initial setting 21 shown in FIG. 2 after the operation starts, and if the magnetic disk device 2a is not connected, both branches to NO in discrimination 23 and discrimination 29, and the original processing of the electronic musical instrument is performed. Only 22 and 31 are performed, and the process is repeated thereafter. If the magnetic disk device 2a is connected during this process, the state of the storage device connection confirmation terminal 14 changes and the determination 23
And branch to YES. If the user performs an operation to specify the magnetic disk access while the magnetic disk device 2a is connected, the process branches to YES in determination 24, and the CPU 3 causes the control signal 13 of the magnetic disk device 2a and the address bus 1
1. Using the data bus 12, the disk controller 5 drives the disk drive 5 to read the identification code of the disk content recorded on the magnetic disk. as a result,
If the disc stores performance data, the performance data will be read. If the disc contains an execution program, the execution program will be read from the disc.
The data is stored in a predetermined place in the M area (process 26 or 27).
Further, when the storage of the execution program is completed, the program transfer completion flag is set in the internal register (process 28) and used for the subsequent determination.

When the execution program is transferred from the magnetic disk device 2a to a predetermined area on the memory 4a, the program transfer completion flag is set, and at that time, the determination program 29 branches to YES to supply from the magnetic disk device 2a. Run the executed program 30 and then the original program
Return to 31 and repeat this. Therefore, by recording a new execution program on the magnetic disk and supplying it to the main body of the electronic musical instrument, it is possible to operate various functions in addition to its original function.

As in this embodiment, the operation program stored in the external storage device 2a is once written in a specific storage area of the electronic musical instrument body 1, and then the operation program written in this specific storage area is executed. In such a case, there is an advantage that only the program required at that time from the external storage device 2a can be executed while being so-called small.

A second embodiment of the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 shows a semiconductor memory device 2b as an external memory device.
Is connected, and 1,3,10,11,12 and 14 in FIG.
Is the same as in FIG. 4b is a memory which does not include RAM according to the case, and 7 is a semiconductor memory element.

In the case of the configuration of FIG. 3, if the normal semiconductor memory device 2b is not connected, it is determined in the flowchart of FIG.
At NO, the process branches to NO and only the processes 33 and 37 of the main body of the electronic musical instrument 1 are repeatedly executed. At this time, if the semiconductor memory device 2b is connected, the state of the memory device connection confirmation terminal 14 changes, and the determination branches to YES. Here, for example, if the recorded content of the semiconductor memory device 2b is set to the potential "H" if it is performance data, and if it is the execution program, it is set to the potential "L". If the memory content of the semiconductor memory element 7 in the semiconductor memory device 2b can be determined and the operation program is stored, the process branches from the determination 35 to execute 36 the operation program on the semiconductor memory element 7. Therefore, on the semiconductor memory element 7,
By storing various operation programs to be additionally executed and connecting them to the electronic musical instrument body 1, the additional programs can be easily executed.

Although the magnetic disk device and the semiconductor memory device are used as the storage device in the embodiment, other applications such as a magnetic card system, a bar code system, or an optical disc system are also possible.

Further, according to the present invention, it is possible to execute various functions in addition to the original functions of the electronic musical instrument. Specific applications thereof are: 1. an inspection / adjustment program for the electronic musical instrument itself 2. Program for confirming operation or investigating causes during market service 3. Music education program for pitch and chords 4. Music games using electronic musical instrument devices are possible. Normally, it was almost impossible to develop an electronic musical instrument including some or all of these programs, because it leads to a long product development period and an increase in the cost of the program ROM. For example, the application program can be additionally executed without causing the above inconvenience, and the content can be easily changed, so that a flexible response can be taken.

EFFECTS OF THE INVENTION The present invention is configured to arbitrarily connect an external storage device to the electronic musical instrument main body and execute an operation program stored in the external storage device as necessary. The range of use can be significantly expanded.

Therefore, (a) In addition to the original functions of the electronic musical instrument main body, the functions can be prevented from becoming obsolete, and the usage range can be expanded by music games and music education programs.

(B) At the repair site of the electronic musical instrument body in the market, the efficiency of maintenance / repair such as defect cause investigation or normal operation confirmation can be greatly improved.

(C) The efficiency of production can be improved by running an automated program for checking the operation of the electronic musical instrument body, investigating the causes of defects, analyzing and adjusting during the production process. Such an excellent effect can be obtained.

[Brief description of drawings]

FIG. 1 is a block diagram when a magnetic disk device is connected to an electronic musical instrument, FIG. 2 is a flowchart diagram of its operation, FIG. 3 is a block diagram when a semiconductor memory device is connected to an electronic musical instrument, and FIG. It is the operation | movement flowchart figure. 1 ... electronic musical instrument body, 2a ... magnetic disk unit, 2b ...
Semiconductor memory device, 3 ... CPU, 4a, 4b ... Memory, 10 ...
Memory control signal, 11 ... Address bus, 12 ... Data bus, 13 ... Control signal, 14 ... Memory device connection confirmation terminal, 15
...... Memory content identification terminal

Claims (3)

[Claims] 1. A CPU, a memory (system program ROM) that stores all of the processing contents of the CPU, an external storage device that can be arbitrarily connected to the main body, and a storage that stores a program in the external storage device. In an electronic musical instrument having a check function for always checking the presence or absence of a medium, based on the result of the check function, if there is no storage medium, only the processing contents of the system program ROM are executed, and if there is a storage medium, An electronic musical instrument characterized by being configured so that a program in a storage medium can be executed in addition to the contents of the system program ROM. 2. An operation program stored in an external storage device is once written in a specific storage area in the instrument body, and the operation program written in this specific storage area is executed. An electronic musical instrument according to claim 1. 3. An external storage device and a storage medium are a connector and a semiconductor memory, respectively, and the operation program stored in the semiconductor memory is directly read and executed. Range first
Electronic musical instrument described in the paragraph.