JP2002215141A - Tuner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem that the visibility of pitch name display by characters on a liquid crystal display part or that by lighting of monochromatic LEDs, to which pitch names are assigned, is lowered in a dark place and LED lighting positions are erroneously recognized in a place distant from user's hand. SOLUTION: A liquid crystal display device provided with LEDs, which emit colors required for discrimination display of extracted pitch names and whose numbers are equal to those of pitch names, a liquid crystal back light emission device capable of emitting the required number of colors, or a color liquid crystal display device is provided, and the liquid crystal back light emission device, LEDs, or the color liquid crystal device is made to emit light in a light emission color corresponding to a pitch name extracted from a signal to be tuned, and the light emission color is discriminated to recognize the pitch name, and thus tuning is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display of a note name of a tuning device.

[0002]

2. Description of the Related Art A conventional tuning device provided with a liquid crystal display judges the pitch name of a tuned signal and displays the pitch name on a liquid crystal display as alphabetic characters. On the other hand, a tuning device provided with an LED lighting device that does not have a liquid crystal display but displays a pitch name illuminates a one-color LED to which the pitch name is assigned, thereby specifying the pitch name at the lighting position.

[0003]

A conventional display of a note name as a character on a liquid crystal display section and a one-color LE to which a note name is assigned are provided.
In the tone name display performed by lighting D, visibility is poor in a dark place, and in a place far from hand, LED
There were problems such as misidentification of the lighting position. In order to solve such a conventional problem, the present invention improves the visibility of pitch names in a dark place or a place away from the hand.

[0004]

In order to solve the above-mentioned problems, the present invention provides an LED which emits the same number of colors as the sound name required for discriminating and displaying the extracted sound name, or a light emitting device capable of emitting the required number of lights. Equipped with a liquid crystal display device having a liquid crystal back light emitting device or a color liquid crystal display device, a light emitting color corresponding to a pitch name extracted from a tuned signal, a liquid crystal back light emitting device, an LED, a color liquid crystal device , And by identifying the emission color, the pitch name can be recognized and tuning can be facilitated.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration and operation of the present invention will be described below in detail. FIG. 1 shows a block diagram of the tuner of the present invention, and the connection and operation will be described.

The waveform shaping unit 1 converts a tuning signal from a musical instrument into a pulse signal when the tuning signal is input. Note 3 in memory 3
LED correspondence data, pulse count-note name correspondence data, pulse count-cent correspondence data, and the like are stored and input to the pitch, note name, octave, and cent extraction units 2. Pitch, note name, octave, cent extractor 2
Compares the pulse signal converted by the waveform shaping unit 1 with the pulse count data in the memory 3, and extracts the pitch, note name, octave, and cent deviation of the tuned signal from the deviation. The display unit 4 displays the input pitch, note name, octave, and cent deviation using LEDs or a liquid crystal display.
Next, the note name display operation of the tuner of the present invention will be described in detail. Description will be made as an LED guitar tuning device provided with the display device shown in FIG.

In the LED guitar tuning device, a plurality of cent display LEDs 5 which simulate a needle type meter are arranged in an arc shape.
The same number of sound name labels 7 and sound name displays L as the sound names to be discriminated and displayed
The ED 6 is provided as a display unit. In this case, the number of tuning names of the guitar is 6 sounds, so the sound name label 7 is 6 sounds, LED
7 is six colors. The note name is the note name L located on the tuning unit.
The ED 6 is displayed by emitting light in a corresponding color according to the correspondence table of Table 1 stored in the memory 3.

[0008]

[Table 1]

When a tuned signal is not input, all the tone name display LEDs 6 are turned off. The tuned signal is input, the tuned signal is shaped by the waveform shaping unit 1, and the note name data and cent data extracted by the memory 3 and the extracting unit 2 are input to the display unit 4. The display unit 4 displays the cent deviation with the cent display LED 5 and performs lighting processing of the note name display LED 6. By these processes, the corresponding tone color of the LED 6 of the tone name display emits light, and the emitted name can be identified by the emitted color, so that the tone name of the tuned signal can be recognized even from a remote place. A description will be given as a liquid crystal display tuning device including the display device of FIG.

The display on the liquid crystal display device 8 includes an alphabetical sound name display 9 and a cent deviation bar display 10, and a display auxiliary device 11 on the back of the liquid crystal display device 8. The liquid crystal display device 8 is a transflective liquid crystal panel that transmits light emitted by the display auxiliary device 11. As shown in FIG. 4, the display auxiliary device 11 includes a light diffusion plate 19, in which a red LED 12, an orange LED 13, a yellow LED 14, a yellow-green LED 15, a green LED 16, and a blue LED 17 shown in the tone name display correspondence table of Table 2. , A purple LED 18.

[0011]

[Table 2]

[0012] There are 12 semitones as tuning discriminating names, but colors are associated with the 7 whole tones, and the semitones blink light,
Assign as shown in Table 2. When one of the tone name display LEDs 12 to 18 is turned on, light is diffused by the light diffusion plate, and light is transmitted through the liquid crystal display device 9 thereabove. Device 8
Can be seen through When the tuned signal is not input, all the tone name display LEDs 12 to 18 are turned off. The tuned signal is input, the tuned signal is shaped by the waveform shaping unit 1, and the note name data and cent data extracted by the memory 3 and the extracting unit 2 are input to the display unit 4. Display unit 4
Then, lighting processing of the pitch name display LEDs 12 to 18 is performed to display the cent deviation and the pitch name on the liquid crystal display device 8. When the note name D # is extracted from the tuned signal, the orange note name display LED 14 flashes from Table 2 to indicate that the tone is a D # that is a semitone up from the whole tone D. By these processes, the alphabetical character display and the cent deviation of the pitch name are displayed on the liquid crystal display device 8, and the light emission color corresponding to the pitch name extracted by the lighting of the display auxiliary device 11 can be visually recognized even in a distant place. You can check the pitch name easily.

Further, a plurality of luminescent colors can be produced and realized by using red, blue, and green LEDs as tone name display LEDs of the display auxiliary unit 11 and changing the luminance of each LED. Further, a description will be given of a liquid crystal display tuner provided with the color liquid crystal display device of FIG. When a color liquid crystal display device is used for the display unit, a note name display 21 of an alphabet, a cent deviation bar 22 indicating a cent deviation, a cent deviation scale 23, and a remaining background display 20 are shown on the liquid crystal display. When there is no tuned signal, both the background display 20 and the cent deviation scale 23 are displayed in white. When a pitch name is extracted from the tuned signal, the same effect as described above can be obtained by displaying the background in a color corresponding to the pitch name shown in Table 2.

[0014]

As described above, the present invention provides a color display corresponding to a tone name display. By recognizing a color that emits light even in a dark place or a distant place, it is easy to determine the pitch name, and the visibility can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram of a tuner implemented in the present invention.

FIG. 2 is a perspective view of an LED tuner using the present invention.

FIG. 3 is a perspective view of a liquid crystal display using the present invention.

FIG. 4 is a structural diagram of a display auxiliary unit using the present invention.

FIG. 5 is an explanatory diagram of a color liquid crystal display unit using the present invention.

[Explanation of symbols]

 1 Waveform shaping section 2 Pitch, note name, octave, cent extraction section 3 Memory 4 Display section 5 cent display LED 6 Note name display LED 7 Note name label 8 Liquid crystal display panel 9 Alphabet note name display 10 Cent deviation bar 11 Liquid crystal back display Auxiliary device 12 Red LED 13 Orange LED 14 Yellow LED 15 Yellow green LED 16 Green LED 17 Blue LED 18 Purple LED 19 Light diffuser 20 Background display 21 Sound name display 22 Cent bar display 23 Cent deviation scale

Claims (4)

[Claims] 1. A tuner for extracting a pitch of a sound of a musical instrument and displaying a deviation from a reference, comprising: a waveform shaping unit for shaping an input tone signal; a memory storing a reference value of the sound;
An extraction unit for extracting a pitch name from the cycle of the signal formed by the waveform shaping unit and the reference value of the sound, and a light emitting body having a plurality of colors of light emitting bodies, and the light emitting body in a color corresponding to the extracted sound name And a display unit for turning on the light. 2. The tuner according to claim 1, wherein a liquid crystal and a rear light emitting device are used for the display unit. 3. The tuner according to claim 1, wherein an LED is used for the display unit. 4. The tuning device according to claim 1, wherein a color liquid crystal is used for the display unit.