JPS6231897A - Electronic musical instrument with display device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to an electronic musical instrument with a display device.

[Prior Art] Conventionally, there has been an electronic musical instrument that has the ability to display eight scale notes instead of automatically playing one song by installing one LED (light emitting diode) for each of the six keys. there were.

[Problem with the Prior Art 1] However, if the LEDs are simply turned on one after another, it is easy for young children in particular to overlook the display, and it is difficult to get rid of the feeling that the display lacks a sense of familiarity.

[Purpose of the invention] This invention was made in view of the above-mentioned circumstances, and its purpose is to make it possible to visually confirm the scale of the keys to be operated, and to make it particularly familiar to young children. The present invention aims to provide an electronic musical instrument with a display device.

[Key points of the invention] This invention aims to achieve the above-mentioned objects.

FD (floppy disk)': Each scale (
The main point is that a picture for at least a scale corresponding to the main note "Do Re Mi Fan Rashi" is stored, and the corresponding picture is read out and displayed by operating the six keys.

[Configuration of Embodiment] An embodiment of the present invention will be described in detail below with reference to the drawings.

<Overall External Configuration> Figure 1 shows the overall external appearance of the electronic musical instrument, in which a keyboard 2 is provided on the front side of the main body part 1, and a pair of left and right sound emitting sections 3.3 are provided at the back of this keyboard 2. It is being A sound emitting part 3 and a lid 4 are rotatably provided on the keyboard 2 of the main body part 1, so that when closed, the keyboard 2 can stand up against the keyboard 2, as shown in FIG. A display section 5 is provided on the back side of the lid 4, and is located in front of the operator when the lid 4 is erected.The display section 5 consists of a dot matrix color liquid crystal display device. , the pictures of each g-1 are displayed in color as shown in FIG. A power switch 6 is provided to the right of the keyboard 2.

Further, on the left side of the sound emitting section 3 on the right side of item 1, an insertion slot 8 for inserting a floppy disk 7, which will be described later, is provided. As shown in FIG. 5, each track of the floppy disk 7 has at least one piece of pictorial information for the main tone recorded therein, and according to the 1w & operation, the pictorial information corresponding to the scale is selectively recorded on the corresponding track. The data will be read out from the display section 5 and displayed on the display section 5.

<Overall circuit configuration> When the floppy disk 7 is started, its output signal is given to the image processing CPU 20 shown in FIG. The motor 23 is driven to rotate the floppy disk 7, and the magnetic disk 12 is slid in the radial direction of the floppy disk 7 to read each track. In this case, 1 C for image processing
A screen selection signal is given from the PU 20 to the servo circuit FfB 22, and picture information (screen information) for the specified scale is read out from the floppy disk 7.

Each picture information read out from the track 11 of the floppy disk 7 via the magnetic head 12 is processed by the reproduction processing circuit section 14 as R (red) and G l).

B (blue) is taken out as each analog signal, converted to a digital signal by a D/A converter 15, and stored in one screen memory 16.
is memorized. The display data for one screen stored in the one screen memory 16 is sequentially read out and sent to the display unit 5 through the R drive circuit 17, G drive circuit 18, and B drive circuit 19 for each R, G, and B signal. is sequentially given to each pixel and displayed. The display pixels of this display section 5 are specified by the C for image processing.
It is carried out in response to a scanning signal from a scanning electrode drive circuit 21 driven by a PU 20, and the display data writing and reading of the one-screen memory 16, the reproduction processing circuit 14, and the D/A are performed.
The converter 15 is driven based on a control signal from the image processing CPU 20.

On the other hand, the keyboard 2 has multiple keys, and the outputs of the six keys are converted into the key codes by the key code generating section 9 and are applied to the image processing CPU 20 and the musical tone generating circuit 27. Then, the image processing CPU 20 selects a picture that matches the key code from the floppy disk 7 and displays it on the display unit 5, and also generates a musical tone signal in the musical tone generating circuit 27, and manually transmits it via the amplifier 28 and speaker 29. The sound is emitted as the musical sound of the performance.

[Operation of the embodiment] Next, the operation of this embodiment will be described.

To perform manual performance while displaying pictures, first turn on the power switch 6, insert the floppy disk 7 through the insertion slot 8, and drive the floppy disk 7 to rotate. At the same time, when a manual performance is started on the keyboard 2, a key code corresponding to the performance is outputted from the key code generation section 9 and given to the image processing CPU 20 and the musical tone generation circuit 27. The musical tone generating circuit 27 creates the musical tone signal and causes the amplifier 28 and the speaker 29 to emit the musical tone ", for example, "C".

On the other hand, the image processing CPU 20 controls the servo circuit section 22 to drive the motor 23, selectively reads out the graphic information of the operation keys from the corresponding track of the floppy disk 7, and supplies it to the reproduction processing circuit 14. 15 to one screen memory 16. Therefore, the pictorial information, that is, the fifth
A picture showing the scale note of "do" of donut shown in the figure is displayed on the display section 5 by the operation of the R drive circuit 17, the GTIA motion circuit 18, and the B drive circuit 19.

In addition to the floppy disk 7, a ROM pack, a RAM pack, a magnetic tape, a laser disk, etc. may be used as means for storing the pictorial information.

Furthermore, in the above embodiment, pictures corresponding to only the main tones of the scale are displayed, but pictures corresponding to derived sounds are also stored in the memory and can be selected and displayed. Furthermore, the display contents may be changed for each octave.

[Effects of the Invention] As explained in detail above, this invention stores a picture corresponding to each scale (at least the scale of do-re-mi-fa-sorashi, which is the main tone) in the memory of an electronic musical instrument, such as a floppy disk, and Since the corresponding picture is read out and displayed by the operation, the scale of the key played on the keyboard can be easily confirmed, and it is particularly suitable for music learning for young children.

[Brief explanation of the drawing]

Figures 1 and 2 are overall external views of an electronic musical instrument with a display device, Figure 3 is a diagram showing the floppy disk 7, Figure 4 is an overall circuit diagram of the electronic musical instrument with a display device, and Figure 5 is a diagram showing the main tone. It is a figure which shows the content of the pictorial information displayed correspondingly. 2...Keyboard, 5...Display section, 7
... Floppy disk, 9 ... Key food generation section, 14 ... Playback processing circuit section, 15
......D/A converter, 16...--Screen memory, 17...RW7IA operating circuit. 18...G drive circuit, 19...B drive circuit, 20... Image processing CPU, 22...
... Servo circuit section, 27 ... Musical tone generation circuit. Patent applicant Casio Computer Co., Ltd. Figure 2 Figure 3

Claims (1)

[Scope of Claims] A storage means for storing at least pictorial information of the main tone; a reading means for reading out the pictorial information from the storage means; 1. An electronic musical instrument equipped with a display device, comprising: display means for reading out data and displaying a picture.