JPS6037573Y2 - musical score display device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a musical score display device capable of displaying scales of musical tones.

Traditionally, electronic watches have been designed to record musical tone codes of specific songs,
In other words, the scale, tone length, and volume codes can be stored in a ROM, for example.
(read-only memory), etc., and then read each code from the ROM and drive a speaker, buzzer, etc. based on this to generate musical tones, use it as an alarm clock, or have a music box function. They are trying to diversify their products by doing this.

By the way, if an electronic watch that generates music in this way displays a musical score of the scale of the sound being pronounced, it would not only satisfy the wishes of the user, but also be superior in terms of design and fashion. becomes.

Therefore, it is conceivable to provide a staff mark and a plurality of musical score display bodies corresponding to the musical staff mark on the display part of the clock, and to display the musical scale by selectively lighting up the musical score display body. A large display area is required to display music having musical scales, and small timepieces such as wristwatches have a disadvantage in that they cannot be displayed because the display area is quite limited.

This invention was made in view of the above circumstances, and its purpose is to provide a musical score display device that can display a wide range of musical scales in a small display space.

This invention will be described in detail below based on embodiments shown in the drawings.

This embodiment is a case in which the musical score display device of the present invention is applied to a wristwatch, in which a predetermined piece of music is sounded as an alarm sound at a predetermined set time, and the scale of the musical note being sounded is displayed. This is the case.

FIG. 1 is a circuit configuration diagram of a wristwatch, and in the figure, reference numeral 1 is an oscillator that generates a reference frequency signal, and the reference frequency signal is applied to a timepiece circuit 2. As shown in FIG.

This clock circuit divides the frequency of the reference frequency signal into signals every second, and counts the signals every second to obtain time information in hours, minutes, and seconds. , and is configured to output a one-shot pulse coincidence signal f when the time information matches the set time for sounding the alarm sound.

The time information is then supplied to the time display section 4 of the liquid crystal display device 3 and displayed.

In addition to the time display section 4, the liquid crystal display device 3 is equipped with a musical score display section 5 that displays musical scores related to specific pieces of music.

In the musical score display section 5, staff marks are formed on the surface of the upper substrate of the liquid crystal display device 3 by means such as printing.

A clef display 6, a plurality of note displays 7, and a quarter rest display 8 are formed of liquid crystal electrodes so as to be optically displayed above the staff.

The entire clef display body 6 has the form of a treble clef, and includes an electrode 6a including a vertical line of the treble clef, and two arc electrodes 6b, 6.
c are separated from each other, and two circular electrodes 6d are arranged side by side on the outside of the upper circular arc electrode 6b. By selectively driving these divided electrodes to display,
The treble clef, bass clef, and c clef are now displayed.

Further, the musical note display body 7 displays a musical scale composed of a circular electrode 7a and an annular electrode 7b.

It is composed of a combination of two electrodes 7 (L7e) and displays the scale and length of the note.

The coincidence signal f output from the clock circuit 2 is applied to an address section 10 that specifies an address of a ROM (read only memory) 9, which will be described later.

The ROM 9 stores microinstructions that make up a musical piece, and upon receiving an address designation signal output from the address section 10, the ROM 9 receives a tone length code A, a scale code B, and a volume code C that make up a musical tone. and a signal specifying its own next address in parallel.

The tone length code A is supplied to the tone length control circuit 11.

This tone length control circuit 11 applies gate control to one input terminal of an AND circuit 13 for supplying an output signal to a buffer 12 and controlling the address section 10 when a predetermined time according to the tone length code has elapsed. given as a signal.

The match signal f is applied to the buffer 12, and the scale code B is read in accordance with the match signal f and the output signal from the tone length control circuit 11.

The scale code output from this buffer 12 is supplied to a decoder 14.

The volume code C is supplied to the decoder 15, and the next address designation signal is temporarily stored in the buffer 15 and then supplied to the other input terminal of the AND circuit 13.

On the other hand, the reference frequency signal from the oscillator 1 is given to a scale frequency generation circuit 16.

This scale frequency generation circuit 16 divides the reference frequency signal by 1 do J%r, generates a group of clock signals having a frequency corresponding to a scale such as J% 'Miyo..., etc. The signal group is supplied to the scale frequency selection circuit 17.

The scale frequency selection circuit 17 selectively outputs a clock signal corresponding to a predetermined scale from the clock signal group according to the content decoded by the decoder 14, and supplies this to the volume control circuit 18.

This volume control circuit 18 controls the volume of the input clock signal according to the content decoded by the decoder 15.

The sounding body, for example, the speaker 19 is connected to the volume control circuit 18.
Outputs audio based on the signal output from.

Further, the note length code A is supplied to the note control circuit 20,
The output contents of the buffer 12 are supplied to a note control circuit 20 and a clef control circuit 21, respectively.

The note control circuit 20 has a tone length code A and a scale code B.
According to which one of the note display body 7's tama electrodes? a, 7b,
It is for selectively driving the display of the cap electrode 7c and the bottom electrodes 7d and 7e, and also controlling the display drive of the quarter rest display 8.

Further, the clef control circuit 21 selects and drives each divided electrode of the clef display 6 for display.

Next, the operation of the electronic timepiece configured as described above will be explained with reference to specific examples shown in FIGS. 2 to 5.

Thus, the time information obtained by the clock circuit 2 is displayed as a time by the time display section 4 of the liquid crystal display device 3.

When the alarm time arrives, the time circuit 2 outputs a coincidence signal f.

Therefore, the ROM 9 is addressed by the address designation signal from the address section 10, and outputs the tone length code A, scale code B, volume code C, and next address designation signal for the first musical tone, respectively.

Further, the scale code B of the first musical note is read into the buffer 12 in accordance with the coincidence signal f.

Therefore, the scale code from buffer 12 is provided.

The scale frequency selection circuit 17 is the scale frequency signal generation circuit 16
selectively outputs the clock signal from the tone scale code according to the scale code, and supplies this to the volume control circuit 18.

Then, the volume control circuit 18 performs a predetermined volume control based on the volume code C mentioned above.

The output signal of this volume control circuit 18 is supplied to a speaker 19, and a predetermined scale, for example, 1 miyo, is output as audio at a predetermined volume.

On the other hand, the contents of the buffer 12 are supplied to a note control circuit 20 and a clef control circuit 21.

The tone length code A is also supplied to the note control circuit 20.

Therefore, the note control circuit 20 uses the note length code A and the buffer 1.
As shown in FIG.
By lighting up the top electrode 7c and the bottom electrode 7d, the note display at the 1 mio position is displayed as a ``C'' note.

On the other hand, the clef control circuit 21 selectively drives each divided electrode of the clef display 6 according to the scale code A, and displays the treble clef as shown in FIG.

Then, the tone length control circuit 1 after the lapse of time using the tone length code A.
When an output is obtained from 1, the next address designation signal from the buffer 15 is applied to the address section 10 via the AND circuit 13, so that the ROM 9 receives the address designation from the address section 10 and performs address conversion.

Therefore, the ROM 9 outputs a tone length code A, a scale code B, a volume code C and an address designation signal relating to the second musical tone.

By sequentially repeating these operations, the audio of a predetermined piece of music is output, and the sounds being produced are sequentially displayed and output.

FIG. 3 shows a state in which the arcuate portion 6b of the clef display 6 and the same-shaped electrode 6d are driven to display the bass clef and the musical scale 'Fayo' is displayed in the musical score display section 5. , and FIG. 4 shows the arcuate portions 6b, 6 of the clef display body 6.
A state in which the C clef symbol is displayed by driving the display and the scale 1 toyo is displayed is shown.

By selectively displaying and driving the clef display 6 and the note display 7 in this manner, it is possible to display sounds in a wide range.

Furthermore, the length of the rest can be displayed in the musical score display section 8 in combination with the quarter rest display 8 and the note display 7. As shown in Figure 5, a whole rest can be clearly indicated by displaying a whole note and a quarter rest, a half rest can be clearly indicated by displaying a half note and a quarter rest, and a half note can also be indicated. An eighth rest can be clearly indicated by displaying a quarter rest and a quarter rest.

In the above embodiment, the case where the present invention is applied to an electronic wristwatch is shown, but it can also be applied to a small electronic calculator with an alarm function, and furthermore, it can be used as a note display device for various electronic musical instruments.

As explained in detail above, this invention, by selectively driving each divided display of a clef display formed in the form of a treble clef and having a structure divided into a plurality of parts,
In addition to the treble clef, the clef display also displays the bass clef and bass clef, making it possible to display scales over a wide range within a small display space, especially when displayed on a wristwatch. Effective in areas where area is considerably limited.

[Brief explanation of drawings]

The drawings show an embodiment of this invention; FIG. 1 is a circuit diagram of a wristwatch, and FIGS. 2 to 5 are diagrams showing display states of a musical score display section. 5... Score display section, 6... Clef display body, 7... Music note display body, 9... RO
M, l l...Tone length control circuit, 20...
...Note control circuit, 21... Clef control circuit.

Claims (1)

[Scope of utility model registration request] A scale display that is provided on a staff group or between the lines of staff notes and displays at least a scale, and a clef that is formed in the form of a treble clef by a plurality of divided display bodies on the staff group. A musical score display device comprising: a display body; and display control means for selectively displaying and driving the plurality of divided display bodies to display a clef different from a treble clef.