JPH03194596A - Electronics - Google Patents

Abstract

PURPOSE:To easily and distinctly display the kinds of the model connected to the outside by detecting the model code to specify the electronic equipment connected to the outside from the data received by a communicating means, forming the display signal corresponding to this code and supplying the same to the display. CONSTITUTION:A CPU 5 outputs the model code CS stored in a ROM 7 to the outside through an external I/F 9, successively investigates the states of a keyboard section 3, all of the keys of an operating section 4 and the operating section 4 and executes the corresponding processing. The CPU 5 reads the display signal data corresponding to the model code CS out of the ROM 7 when the I/F 9 receives the transmission data of the modules 11A t 11C during this processing. The CPU forms the display signal corresponding thereto and supplies and displays the same to a display device 16. Namely, the displays corresponding to the code CA is executed for the specified time when a power source is turned on for the module 11A and the display corresponding to the codes CB, CC is executed when the power source is turned on for the modules 11B, 11C, respectively. The connecting state to the respective sets of the equipment is easily and surely known in this way and the erroneous operation is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to electronic devices such as electronic musical instruments and AV devices that are configured to connect a plurality of electronic devices.

(Prior Art) In recent years, in the field of electronic musical instruments, products have been commercialized in which multiple electronic musical instrument modules modularized by function are connected to one electronic musical instrument. By doing so, for example, by connecting a sound source module, automatic performance module, automatic accompaniment module, etc. to the electronic piano, the musical expression of the electronic piano can be expanded.

Furthermore, in the field of audio equipment, tuners, CD decks, cassette decks, etc. are connected to amplifiers, and in the field of video equipment, VV is connected to monitor devices.
It is configured to connect a TR, laser disc player, television camera, etc.

[Problem to be solved by the invention]

In a system where multiple types of electronic devices are connected to one electronic device as described above, there are cases where it is difficult to know which electronic device is connected to that one electronic device without checking the wiring. There are many. However, since the wiring is usually done on the back side of each molded device, and the wires are intricately intertwined, there is a problem in that the connection status cannot be determined just by looking at the wiring.

Furthermore, it may not be possible to determine what type of electronic device is connected to the second electronic device just by looking at the external appearance of the system. This tendency is particularly noticeable in cases where each electronic device has a similar appearance.

The present invention has been made in view of the above-mentioned circumstances, and provides an electronic device in which the state of connection with each electronic device and the type of each connected device can be easily known.

[Means to solve the problem]

The electronic device of the present invention includes a communication means for communicating data with the plurality of externally connected electronic devices, and a communication means for communicating data with the plurality of externally connected electronic devices; detection means for detecting a model code that identifies the externally connected electronic device from the data;
The apparatus is further provided with display signal generating means for generating a display signal corresponding to the detected model code and supplying the generated display signal to the display when the model code is detected by the detecting means.

Further, a model code output means may be provided for outputting a model code for identifying the own device to the communication means when the power is turned on.

[For production]

According to the electronic device of the present invention, a model code identifying an externally connected electronic device is detected from data received by a communication means, and when this model code is detected, a model code corresponding to the model code is detected. A display signal is generated and supplied to the display device. Therefore, by looking at the display on the display, it is possible to easily and clearly know the connection status with each device and the type of device currently connected.

〔Example〕

An embodiment in which the present invention is applied to an electronic musical instrument having a keyboard, such as an electronic piano, will be described below with reference to the drawings.

In FIG. 1, modules IIA, 11m, and LLC as externally connected electronic devices are connected to an external interface 9 as a communication means provided in an electronic musical instrument 1, and are configured to mutually transmit and receive data. has been done.

In addition, the pass line 2 provided in the electronic musical instrument 1 includes a keyboard section 3, an operation panel section 4, a CPU 5, a timer 6, a ROM
7, RAM 8, the above-mentioned interface 9, and musical tone forming circuit 10 are connected so that they can communicate with each other.

The musical tone data formed by the musical tone forming circuit 10 is D/A
A converter 12 converts the signal into an analog musical tone signal, and this musical tone signal is amplified by an amplifier 13 and then applied to a speaker 14 to produce a musical tone.

The keyboard section 3 includes a keyboard on which keys are arranged, an interface for inputting signals from each key, and the like.

The operation panel section 4 is comprised of a large number of various operators 15 for musical tone control and performance control, an interface for inputting signals from each operator 15, a display 16 for performing various displays, and the like.

The CPU 5 performs a scan process of the keyboard and a scan process of each of the operators, and executes various processes such as generating musical tones according to a program stored in the ROM 7 in accordance with the operation of the keys or operators.

The timer 6 supplies various request signals and timing signals, including a signal for controlling the output of display signals to the display 16, to each section.

The ROM 7 stores various data such as programs for the CPU 5, musical waveform data, and display data.

The data stored in the ROM 7 includes data regarding the model code C8 that specifies the electronic musical instrument 1, and displays corresponding to the model codes cm, CI, and c that specify the modules 11A, 11B, and 11. Contains data about the signal.

The RAM 8 is provided with various registers, counters, and the like.

Next, the operation of the above configuration will be explained.

FIG. 2 shows a flowchart of the main processing executed by the CPU 5.

In FIG. 2, when the power is turned on, initial processing is performed in step S1. In this initial process,
Along with clearing the tone generator, RAM, etc., the process of outputting the model code C5 is performed.

The output process for this model code C5 is performed by the CPU 5 in the ROM 7.
Model code C based on the model code data stored in
3 to the outside through the external interface 9, and this process is to notify the other electronic musical instrument of its model when the electronic musical instrument 1 is further externally connected to another electronic musical instrument. It is done for.

After the above initial processing is completed, in step S2, a key scanning process is performed to sequentially check the operating states of all the keys on the keyboard section 3. If it is detected in step S3 that there is a key operated (event), step S4
Then, musical tone control processing and the like corresponding to that key are executed.

Next, the process proceeds to step S5, where a panel scan process is performed to sequentially check the operation states of all the operators 15 of the operation panel section 4. If it is detected in step S6 that the operator 15 has been operated, a process corresponding to the operated operator 15 is performed in step S7. after that,
After executing other main processing 2 as necessary in step S8, the process returns to step S2.

When the above main processing is being performed, module II
When the data transmitted from A to Ilc is received by the external interface 9 of the electronic musical instrument 1, the reception interrupt process shown in FIG. 3 is executed.

In FIG. 3, in step SL, it is first determined whether a model code has been input. This model code is entered, for example, in the module lla when the above main processing is being performed.
When the power is turned on, the CPU (not shown) in this module 11A performs initial processing, and this code is output from the module 11A during this processing and received by the external interface 9.

If it is determined in step S1 that no model code has been input, another interrupt process is performed in step s2, and then the process returns to the main process. Further, if it is determined that a model code has been input, the process proceeds to step S3, and a model code display process is performed.

Immediately, the CPU 5 stores the input model code, for example, the display signal data corresponding to the above-mentioned model code CA, in the ROM 7.
, and generates a display signal according to this display signal data and supplies it to the display 16. As a result, indicator 1
6, the connected module, in this example module l
A display indicating 1A is made. In addition, at this time, display 1
The data related to the display that was displayed until then in 6 is R.
Temporarily evacuated to AM8. When the above display processing is performed,
After setting the display flag in step S4, a counter is set in step S5 and the process returns to the main process.

When the above interrupt processing is completed, the timer processing shown in FIG. 4 is executed.

First, in step S1, the display flag is checked, and if there is no flag, the process returns to the main process. If there is a display flag, the value of the counter is decremented by one in step S2. In step S3, the counter value is monitored and the counter value is "0".
If it becomes ``'', the display flag is cleared in step S4.

Next, in step S5, the above-mentioned saved display data is called and the display on the display 16 is restored to its original display state, and then the process returns to the main process.

According to the above, when the module 11A is powered on, a display signal corresponding to the model code CA is displayed on the display 16 for a certain period of time.

Further, when the power of the modules IIs and llc is turned on, display signals corresponding to their model codes C, C, are displayed for a certain period of time.

FIG. 5 shows an example of a display form on the display 16, in which segment 1 forming a 7-segment display element 17 is shown.
By lighting up 7A, 17m, and 17c, the modules IIA and 1111c are represented. In addition to this display format, various other modifications may be used.
In particular, in the case of a liquid crystal display, since the display area is large, various displays can be performed to represent the modules l1a11s and llc.

As described above, according to the embodiment described above, each module 11. You can know the connection status of ~11c (whether each module is actually connected or not), and each segment 174~17c corresponds to each module IIA~1c, so you can tell which segment is lit. By checking this, you can determine the type of module currently connected.

Incidentally, in the above embodiment, an example in which the present invention is applied to an electronic musical instrument has been described, but the present invention can be applied to electronic equipment in other fields such as AV equipment.

〔Effect of the invention〕

According to this invention, when a plurality of electronic devices are selectively connected to an electronic device, the connection status with each device and the type of each currently connected electronic device can be easily and reliably determined by the display on the display. can be known. Therefore, it becomes possible to accurately grasp the status of the system and the functional status of its electronic equipment, and it is possible to obtain effects such as being able to eliminate erroneous operations.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, FIG.
3 and 4 are flowcharts showing processing executed by the CPU, and FIG. 5 is a configuration diagram showing an example of a display device. In addition, in the symbols used in the drawings, ■......Electronic musical instrument (module) 5...
......CPU 7...ROM 8...RAM 9...External interface 11A, I
Ig, I Ic...Module 16...
...It is an indicator.

Claims (2)

[Claims] (1) In an electronic device configured to connect a plurality of electronic devices externally, a communication means for communicating data with the plurality of externally connected electronic devices; and a communication means for communicating data with the plurality of externally connected electronic devices; a detection means for detecting a model code that identifies an externally connected electronic device; and when the detection means detects the model code, generates a display signal according to the detected model code and supplies it to the display device. What is claimed is: 1. An electronic device comprising display signal generating means for generating a display signal. (2) The electronic device according to claim 1, further comprising a model code output means for outputting a model code for identifying the electronic device to the communication means when the power is turned on.