JP2000194339A - Acoustic device and acoustic reproducing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make information concerning operating states of a device to be able to be grasped intuitively and easily. SOLUTION: A microcomputer 2 makes key switches emit light with different luminous colors and in the different order of luminous colors in accordance with functions and operations at respective points of time and changeovers among them by controlling in what combinations a red LED 9, a green LED 10 and a blue LED 11 are to be lighted and turned off. When the key switches do not perform light emission in accordance with function changeovers and operation modes, the key switches are made to change luminous colors in accordance with acoustic levels.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an audio apparatus and an audio reproducing method for reproducing sound such as a CD, and more particularly, to an intuitive and easy-to-understand information on an operation state. It was done.

[0002]

2. Description of the Related Art In recent years, an audio device (and an audio reproducing method) has been known as a technology for reproducing audio such as a CD (compact disk) and a radio. Representative information output to the user regarding the operation state of such an audio device includes a function, an operation mode, an audio level, and the like.

[0003] Here, when the audio device has a plurality of functions or units such as a CD player, an autochanger, a cassette tape deck, and a radio tuner, which function or unit is currently operating. It is a concept to represent. The operation mode is a concept indicating which operation, such as during reproduction or fast forward, is being performed for each function or unit. The sound level is information indicating a sound source currently flowing from a speaker or the like or a signal level for each frequency band.

Heretofore, such information on the operating state has been output as characters, figures, symbols, and the like using a fluorescent tube, an LCD (liquid crystal display), or the like. For example, as a conventional example of displaying a function, there is a display using characters such as "TUNER" and "CD".

Further, as a conventional example of displaying the operation mode, for example, if the radio tuner is performing SEEK (sweep) tuning, “SEEK” is displayed or a frequency count-up display is performed. For example, for a CD player, if a track is being reproduced, a track number (TRACK No.) is displayed or fast forward (FF) is performed.
Example of displaying a figure or symbol with two right-pointing arrows like ">>" or characters such as "FF" during operation, and count-up display of playback time (P-TIME) from the beginning of the song And the like.

As a conventional example of displaying the sound level, there is an example in which the level for each frequency band detected by a frequency analyzer is displayed as a bar graph called a spectrum analyzer in a dedicated area. In such a spectrum analyzer, a horizontal bar-shaped segment of a fluorescent tube or an LCD display is vertically arranged for each frequency band, and a number of segments proportional to the audio level are simultaneously turned on. More specifically, in each frequency band, an example is known in which, as the audio level is higher, a larger number of the above segments are lit up, and as the audio level is smaller, a smaller number of the segments are lit only at the lower side. Was.

[0007]

However, in the above-mentioned prior art, the information on the operation state includes characters, characters, and the like.
There is a problem that it is difficult to grasp intuitively because it is displayed as a figure or a symbol. Specifically, for example, during a CD performance, TRACK No. (Track number) or P-TIM
It is difficult to judge at a glance whether E (playback time) is displayed only by operating the built-in CD of the audio device or an external CD autochanger installed in a trunk or the like. Further, in this case, such TRACK No.
When the display that displayed (track number) or P-TIME (playback time) is switched to display the current time, etc.,
The operation mode of the sound device cannot be determined.

In addition, since the conventional display of the sound level as described above is represented by a graphic, it is difficult to specifically grasp the sound level without directly paying attention, and a dedicated display in which fluorescent tubes and the like are arranged in a bar graph form. Since an area is required, there is a problem that a required display area and cost are large.

In particular, when the acoustic device is used as a car audio for a vehicle, the installation space is limited, and the area of the display allowed for the acoustic device must be reduced. For this reason, the display of functions and operation modes using characters, graphics, and symbols as described above and the level display by a spectrum analyzer tend to become smaller in proportion to the above, and it is difficult to intuitively grasp information on an operation state.

[0010] The present invention has been proposed to solve the above-mentioned problems of the prior art, and its object is to provide different emission colors such as illumination of operation switches.
An object of the present invention is to provide a sound device and a sound reproducing method for displaying information such as a function, an operation mode, and a sound level.

[0011]

According to a first aspect of the present invention, there is provided an audio apparatus for reproducing sound, wherein the light emitting means emits light in a plurality of luminescent colors; Control means for controlling the light emitting means in accordance with the operation state of the acoustic device.
According to a ninth aspect of the present invention, the invention of the first aspect is viewed from the viewpoint of a method. In a sound reproducing method for reproducing sound, a light emitting step for emitting any one of a plurality of light emitting colors and an operation are described. A control step for controlling a light emission color in the light emission step according to a state. According to the first and ninth aspects of the present invention, the information on the operation state such as the function switching, the operation mode, and the sound level is expressed not by a character, a figure, a symbol, or the like, but by a light emission content such as a change in light emission color or blinking.
Therefore, the operating state can be intuitively and easily grasped, and a dedicated display area is not required.

According to a second aspect of the present invention, in the acoustic device for reproducing sound, the light emitting means for emitting light in a plurality of light emitting colors and the light emitting means so that the light emitting colors are different depending on a given sound level. And control means for controlling. The invention of claim 10 is the invention of claim 2
In the sound reproduction method for reproducing sound, a light emission step for emitting any one of a plurality of emission colors, and the light emission step is performed according to a given sound level. And a control step for controlling the emission color of the image. According to the second and tenth aspects of the present invention, the emission color changes to a predetermined color according to the given sound level (audio level). For this reason, the audio level can be easily and intuitively checked even without watching the display, and a beautiful and interesting synergistic effect of sound and light can be obtained.

According to a third aspect of the present invention, in the audio device according to the first or second aspect, the control means changes the luminescent color via a plurality of colors when a function is switched in the audio device. It is characterized by having been done. According to an eleventh aspect of the present invention, the invention of the third aspect is viewed from the viewpoint of a method. In the sound reproducing method according to the ninth or tenth aspect, the control step includes the steps of: The emission color is changed through a plurality of colors. According to a fourth aspect of the present invention, in the acoustic device according to any one of the first to third aspects, the control means performs the processing through a plurality of colors according to what kind of operation the acoustic device is performing. The luminescent color is changed. According to a twelfth aspect of the present invention, the invention of the fourth aspect is viewed from the viewpoint of a method. In the sound reproducing method according to any one of the ninth to eleventh aspects, the control step includes the step of: The luminescent color is changed via a plurality of colors according to what kind of operation is being performed. According to the third, fourth, twelfth, and twelfth aspects of the present invention, when expressing a function switch or an operation mode, the luminescent color changes through a plurality of colors, not simply switching. Therefore, the function switching and the operation mode can be clearly understood, and a beautiful visual effect can be obtained.

According to a fifth aspect of the present invention, in the acoustic device according to any one of the first to fourth aspects, the control means includes:
It is characterized in that the emission color is configured not to cause a predetermined change. According to the fifth aspect of the present invention, the way of changing the emission color is limited, for example, a rapid change of brightness such as a direct change of red ← → blue, a sudden change of light extinction ← → lighting, a sharp change of color in a short time, and the like. By avoiding a predetermined change in emission color, eye fatigue and shock symptoms due to photosensitivity can be effectively prevented, and safety is improved.

According to a sixth aspect of the present invention, in the acoustic device according to any one of the first to fifth aspects, the light emitting means includes:
At least one operation switch is configured to emit light. According to the invention of claim 6, since the operation switches such as the push buttons and the knobs are made to emit light, they can also serve as illumination illumination for the operation switches, and it is not necessary to separately provide a light emitting portion or a light emitting body. Can be simplified. The configuration for emitting light is free. For example, the present invention includes a configuration in which the operation switch is made translucent to illuminate with an LED from the back side, or the center and periphery of the operation switch emit light.

According to a seventh aspect of the present invention, in the acoustic device according to any one of the first to sixth aspects, the operation switch is configured to be operated by being rotated. According to the seventh aspect of the present invention, the operation switch protruding at least to some extent from the surface of the apparatus or the operation panel, such as a rotary dial switch called a jog key, emits light, so that the emission can be easily seen. The configuration of which part of the switch to be turned on is free to emit light.For example, only the top of an opaque cylindrical switch protruding like a cup is made translucent or a push button switch. A configuration in which only such a portion emits light is also included in the present invention.

According to an eighth aspect of the present invention, in the acoustic device according to any one of the first to seventh aspects, the light emitting means includes at least three LEDs having different emission colors from each other, and the control means includes It is characterized in that the plurality of luminescent colors are realized by what combination of each LED is turned on. According to the eighth aspect of the present invention, it is possible to easily realize many luminescent colors with a simple configuration, such as obtaining seven luminescent colors by combining which of the three-color LEDs is lit and which is lit. In addition, L of the same color
The present invention includes a configuration in which the same color is used to represent a difference in brightness by using a plurality of EDs.

[0018]

Embodiments of the present invention (hereinafter referred to as "embodiments") will be described below with reference to the drawings. In order to realize the present invention and the embodiment, it is generally considered that software including a program code and data controls a computer and its surrounding circuits and devices.

Such software is created by combining instructions according to the description of the present specification, and the parts common to the above-described prior art employ the technique described in the prior art. And the software is CPU
The functions and effects of the present invention are realized by utilizing physical resources such as a peripheral device, an input / output device, and a storage device such as a memory.

However, various forms and configurations are conceivable for software and hardware, and a part of the functions of the present invention can be realized by a physical electronic circuit such as an LSI. For this reason, the present invention and the embodiments will be described below using virtual circuit blocks that realize individual functions included in the present invention and the embodiments.

[1. First Embodiment] In the first embodiment, a predetermined portion emits light of a different color according to a function and an operation mode. [1-1. Configuration of First Embodiment] FIG. 1 is a functional block diagram showing the configuration of the first embodiment. That is,
The audio device according to the first embodiment is a car audio system mounted on a vehicle. A center unit 1 includes a CD autochanger (referred to as a CD A / C) 13 for automatically changing a plurality of CDs, and a BUS (bus). 12 and so on.

The center unit 1 includes a control microcomputer 2 and a PLL (phase-locked loop).
p) IC 3, tuner pack 4 for radio, and CD mechanism (referred to as CD mechanism) 5 that functions as a CD player
, A display driver 6, an LCD 7, a key matrix 8, and three LEDs 9, 10, 11.

The microcomputer 2 includes a PL
By controlling the tuner pack 4 via the LIC 3, radio reception is performed, and the built-in CD mechanism 5 and BUS
A CD is played by controlling a CD A / C 13 connected to the outside at 12, and the sound such as music obtained by these is played from a vehicle-mounted speaker (not shown). The audio line 14 is a signal line for transmitting analog audio signals from the tuner pack 4, the CD mechanism 5, and the CD A / C 13, and is connected to the A / D port 15 of the microcomputer 2.

The display driver 6 is a driver for controlling the peripheral devices when the microcomputer 2 performs various displays on the LCD (liquid crystal display) 7 and performs various inputs from the KEY matrix 8.

The three LEDs 9, 10, and 11 are a red (R) LED 9, a green (G) LED 10, and a blue (B) LED 11, which emit light of different colors from each other. This is a light emitting unit that emits light in a plurality of different emission colors depending on whether it is turned on or off.

The surface of the center unit 1 is shown in FIG.
An operation panel as shown in FIG. 1 is provided for display and operation, and three-color LEDs 9 to 11 are connected to a key matrix 8.
Is used as an illumination for illuminating the key switch 35 according to the above. The key switch 35 is a type of operation switch. Specifically, an opaque cylindrical rotary jog key 36 protrudes from the surface of the operation panel as if the cup was turned down. This is a translucent push button switch that forms the top surface.

The key switch 35 is formed of a translucent resin, and three red (R) LEDs 9 from the back side.
The key switch 35 is illuminated by the green (G) LED 10 and the blue (B) LED 11, and the key switch 35 is illuminated as transmitted light in which the light emitted from these LEDs 9, 10, 11 is mixed.

Then, a red (R) LED 9 and a green (G)
The LED 10 and the blue (B) LED 11 can be turned on or off in accordance with the combination in which the key switch 35 is turned on.
It is assumed that light is emitted in a plurality of emission colors as shown in FIG.

[Table 1] Color name Abbreviation RGB combination Ruby RUB R--Pearl PEA RB Sapphire SAP--B Aquamarine AQUA-GB Emerald EME-G-Topaz TOP RG-Diamond DIA RGB

That is, the microcomputer 2 operates each LED as a light emitting means according to the operation state of the acoustic device in the first embodiment by the operation of a program (not shown).
It corresponds to control means for controlling 9, 10, 11 and is specifically configured to realize a plurality of luminescent colors depending on what combination of these LEDs 9, 10, 11 is turned on. I have.

[1-2. Operation of First Embodiment] The first embodiment configured as described above operates as follows. [1-2-1. Outline of Operation] In the first embodiment, the key switch 35 emits light in different emission colors and in the order of emission colors according to the functions and operations at each time point and switching between them. In order to control the following procedure, the function No. (Abbreviated as “FN”) and sequence No. (Abbreviated as “SQ”).

Among them, FN indicates what kind of function switching or light emission pattern corresponds to an operation mode to emit light, and from among a plurality of functions or units incorporated in the audio device, which one is currently operating. It corresponds to which one has been switched and what operation the individual function or unit is performing. Also, SQ is
This is a numerical value for controlling the order of one or a plurality of luminescent colors in each luminescent pattern.

For example, FIG. 4 shows a TUN using the tuner 4.
ER mode, C connected to the outside of the center unit 1
A / C mode using DA / C13, built-in CD mechanism 5
(Internal) CD mode, the key switch 35 emits light in each of these modes, and what kind of light emission color is used when switching between the modes. It is a conceptual diagram which shows whether the key switch 35 emits light in order.

For example, when switching from the TUNER mode to the CD mode, the emission color changes in the order of topaz → emerald → aquamarine → sapphire, and the last sapphire becomes the color representing the CD mode. Further, as an example of the light emission order representing the operation, the time of SEEK of TUNER and the time of FF (fast forward) / FB (reverse feed) of CD mechanism 5 or CD A / C 13 are predetermined as shown in FIG. By repeating light emission in the order of a constant light emission color, it is conceivable to visually notify that the camera is operating.

As described above, by changing the emission color through a plurality of colors depending on the function switching or the operation of the acoustic device, it is possible to change the color rather than merely changing the color. Such function switching and operation can be made to stand out.

During the PAUSE (pause) of the CD mechanism 5, the CD A / C13, etc., ruby is used, and by using such a conspicuous red color, it is emphasized that no sound is produced during the PAUSE. Is also conceivable. In addition, as an emission color in other modes, for example, in an ADJ (adjustment) mode for performing clock adjustment or the like, a color that is not used to represent other functions, such as a pearl, is used. It is conceivable to specify that the mode is set.

[1-2-2. Next, FIG. 6 is a flowchart showing a processing procedure to be performed when a function switch occurs in the first embodiment. That is, in this procedure, first, the content of the function switching is TUNE
It is determined whether the mode is the R mode → the CD mode (step 201). If the determination result is YES, FN is set to 1 (step 202).

On the other hand, if the judgment result is NO, similarly,
It is sequentially determined whether or not the performed function switching is the following switching (step 203,
205, 207, 209, 211).

[Table 2] Contents of function switching FN TUNER mode → CD mode 1 TUNER mode → A / C mode 2 CD mode → TUNER mode 3 CD mode → A / C mode 4 A / C mode → TUNER mode 5 A / C mode → CD mode 6

If no answer is found in all the judgments and the answer is NO, the process is terminated as it is. If the answer is YES in any of the judgments and the answer is YES, the function number 1 corresponding to the switch is found. The FN is set to 6 through 6 (steps 202, 204, 206, 208, 2).
10, 212), and set SQ to 5 (step 2).
13), an LED operation for turning on the LED by calling a subroutine or the like is performed (step 214), and the process ends.

[1-2-3. FIG. 7 is a flowchart showing a processing procedure executed when a change in the operation mode occurs in the first embodiment. That is, in this procedure, first, FN
Is determined to be 6 or less (step 30).
In the cases of 1) and 6 or less, since the function switching operation as shown in FIG. 6 is being performed, the processing is terminated without doing anything to give priority to it.

On the other hand, if FN exceeds 6, it is determined whether the operation mode has changed to the ADJ mode (step 302). If YES, FN is set to 7 and SQ is set to 2
(Step 303), and the operation proceeds to the LED operation (step 311).

If the result of the determination in step 302 is NO
In the case of, it is determined whether or not the operation mode has changed to PAUSE (step 304).
Is set to 8 and SQ is set to 2 (step 305).
Proceed to LED operation (step 311).

Further, the determination result in step 304 is N
In the case of O, it is determined whether the operation mode has changed to SEEK (step 306) or FF / FB (step 307), and if YES, FN is set to 9 and SQ is set to 5 (step 308), LED operation (Step 31)
Proceed to 1).

If the determination result in steps 306 and 307 is NO, both FN and SQ are set to 0 (step 309), and the process is terminated. After the LED operation is performed in step 311, the process ends.

[1-2-4. Procedure for determining emission color]
FIG. 8 is a flowchart showing an LED operation based on the FN and SQ determined as described above, that is, a processing procedure for determining the emission color of the LED.
14 and a subroutine corresponding to step 311 in FIG.

That is, in this procedure, first, FN becomes 0
It is determined whether or not this is the case (step 401). If the result of this determination is 0, it means that there is no LED operation display, and the process is terminated as it is. On the other hand, if it is not 0, the SQ is decremented by 1 (step 402), and until the SQ becomes 0 (step 403), the current F
An emission color is obtained from the values of N and SQ by using an LED operation table as illustrated in FIG. 9 (step 404).

The LED operation table shown in FIG. 9 shows the order of the emission colors for each FN. For example, when FN = 1, S
Each time Q is decremented, the emission color changes in the order of topaz → emerald → aquamarine → sapphire.

Subsequently, the LED is turned on based on the emission color obtained from such an LED operation table (step 405), and waits for one second (step 406). During this time, the LED is turned on in step 405. The color emits light. Then, after a lapse of one second, the process returns to step 1. Here, the process is returned to step 1 for the sake of simplicity. However, in an actual program, the process may be temporarily stopped after setting the one-second timer, and the process may be started again from step 1 after one second.

By repeating the above-described flow processing while decrementing SQ to 0 (step 403) (step 403) (step 402), according to the LED operation table, for example, topaz → emerald → aquamarine → sapphire The emission color will change.

On the other hand, if SQ = 0 in step 403, processing relating to repetition of color development is performed in accordance with the procedure from step 407. Here, the operation mode for repeating the color development is ADJ (FN =
7), PAUSE (FN = 8), SEEK and FF / F
B (FN = 9).

ADJ and PAUSE are SQ
= 2 (steps 303 and 304), SEEK and FF /
FB is SQ = 5 (FN = 7). That is, in the operation of FIG. 8 based on these SQ values, ADJ and PAUS
As for E, the value of SQ = 1 after the first decrement indicates one emission color, which corresponds to the fact that the number of emission colors of FN = 7, 8 specified in the LED operation table is one. I have. For SEEK and FF / FB, the value of SQ after the first decrement = 4 represents the number of emission colors of four, which is the FN = 4 specified in the LED operation table.
This corresponds to that the number of emission colors of 9 is 4.

That is, in the procedure after step 407, first, if FN = 9 (SEEK, FF / FB) (step 407), SQ is returned to 4 (step 408), and the flow returns to step 404. . Thus, when FN = 9 (SEEK, FF / FB), SQ =
After sequentially emitting light in four colors for one second in accordance with 4 → 3 → 2 → 1, the operation is repeated again as SQ = 4 → 3 → 2 → 1 to repeat the operation of sequentially emitting light in four colors.

If NO in step 407, FN
= 8 (step 409) or FN = 7 (step 41)
If it is (0), SQ is returned to 1 (step 41).
1) Return to the flow from step 404. Thus, FN
= 8 (PAUSE) or FN = 7 (ADJ), sapphire or pearl is emitted for 1 second at SQ = 1, then SQ that has become 0 is set to 1 again, and the same color is emitted again for 1 second. , Continuous emission of the emission color specified in the LED operation table.

On the other hand, if all of the steps 407, 409 and 410 are NO, the FN is other than 9, 8, and 7, which is called from the function switching shown in FIG. This is the stage where the light emission order of 1 has been completed once. In this case, it is sufficient that the light emission in the sequence of the emission colors shown in FIG. 4 is performed only once. Further, since there is no need to repeat the operation, FN is reset to 0 (step 412), and the processing is performed. finish.

[1-2-5. Procedure of LED Lighting Operation] Next, the LED corresponding to the given luminescent color (referred to as the designated color)
A specific processing procedure of lighting is shown in a flowchart of FIG. This procedure corresponds to step 405 shown in FIG. That is, in this procedure, first, it is determined whether or not the indicated color is ruby (RUB) (step 601). If YES, the red (R) LED 9 is turned on (ON) and the green (G) LED 10 is turned on. Lights off (OFF),
The blue (B) LED 11 is turned off (OFF) (step 602), and the process ends.

On the other hand, if the determination result is NO, it is sequentially determined whether or not the designated color is another emission color according to Table 1 (steps 603, 605, 607, 6).
09, 611, 613), and turns on or off each of the LEDs 9, 10, 11 in a combination according to the emission color corresponding to the indicated color (steps 604, 606, 60).
8, 610, 612, 614). If the indicated color does not correspond to any of the emission colors, all the LEDs 9, 10, 11
Is turned off, and the process ends (step 615).

[1-3. Effect of First Embodiment] As described above, in the first embodiment, the operation state of the acoustic device, such as function switching and operation mode, includes characters, figures,
Instead of a symbol or the like, it is represented by light emission content such as a change in light emission color or blinking. Therefore, the operating state can be intuitively and easily grasped, and a dedicated display area is not required. Also, driving safety is improved.

In the first embodiment, when the function is switched or the operation mode is indicated, the luminescent color is not simply switched but changes through a plurality of colors. Therefore, the function switching and the operation mode can be clearly understood, and a beautiful visual effect can be obtained.

In the first embodiment, the key switch 35, which is a type of operation switch, emits light, so that it can also serve as illumination illumination for the operation switch, and it is not necessary to separately provide a light-emitting portion or a light-emitting body. , The overall configuration can be simplified. Further, in the first embodiment, by emitting light from the key switch 35 at a portion protruding from the operation panel, it is possible to make the emitted light stand out easily. Further, in the first embodiment, a simple configuration of a combination of which of the three-color LEDs is turned on,
The light emission color can be easily realized.

[2. Second Embodiment] Next, in the second embodiment, in addition to the configuration of the first embodiment shown in FIG. 1, when the light emission according to the function switching or the operation mode is not performed, the light emission according to the sound level is performed. The color is changed. [2-1. Configuration of Second Embodiment] That is, in the second embodiment, the microcomputer 2 shown in FIG. 1 operates as an LED (light emitting means) so that the color of the emitted light varies depending on the given sound level by the action of a program (not shown).
It is configured to also serve as a control means for controlling 9, 10, and 11.

That is, FIG. 11 is a functional block diagram showing the configuration of the acoustic device shown in FIG. 1 which is a feature of the second embodiment. That is, the microcomputer 2 according to the second embodiment includes, in addition to the CPU 23, a buffer and rectifier circuit 21, an A / D conversion circuit 22, and an LED drive circuit 24 as peripheral circuits.

The buffer and rectifier circuit 21 is a part for converting an analog audio signal input from the audio line 14 into a DC signal and rectifying the DC signal.
The A / D conversion circuit 22 is a part that converts the rectified DC signal into a digital signal. Also, the CPU 23
This is a part that determines a light emission color according to the sound level represented by the digital signal input from the D conversion circuit 22.

The color LED 25 is a generic name of the three-color LEDs 9, 10, and 11 shown in FIG. 1, and among the three red (R) LEDs 9, green (G) LEDs 10, and blue (B) LEDs 11, Depending on the combination of which is turned on and which is turned on, seven light emission colors are generated in addition to the all turned off state. Also, the LED drive circuit 24
Is a portion for blinking the color LED 25 in accordance with the emission color determined by the CPU 23.

[2-2. Operation of Second Embodiment] [2-2-1. Emission Color Corresponding to Each Level] In the second embodiment, the microcomputer 2 turns on the color LED 25 with an emission color corresponding to a given sound level. However, the microcomputer 2 is configured so as not to cause a predetermined change in emission color, and specifically, the change in emission color is subject to the following restrictions. (1) Do not use red (2) Do not turn off even when there is no sound (3) Do not cause a change in red ← → blue (4) Do not cause a sudden change in brightness of turn off → → lighting (5) Short time (300 mS Therefore, in the second embodiment, five types of luminescent colors as shown in the following conversion table in Table 3 are used according to the sound level, and the luminescent colors are updated. It shall be performed every 300 msec (mS). Here, the A / D value is determined based on an analog audio signal input from the A / D port 16 based on a buffer / rectifier circuit 21 and an A / D converter circuit 22.
The sound level is 1 to 255.
Is a numerical value expressed in 255 steps.

[Table 3] A / D value Color name Abbreviation RGB combination 1 to 71 Sapphire SAP --- B 72 to 143 Aquamarine AQUA-GB 144 to 194 Diamond DIA RGB 195 to 209 Topaz TOPRG-210 to 255 Pearl PEAR -B FIG. 12 conceptually shows the emission colors according to the height of the acoustic level.

[2-2-2. Schematic operation] First, FIG.
Are the LEDs 9, 1 according to Table 3 according to the sound level.
It is a flowchart which shows the outline | summary of the operation | movement which changes the luminescent color of 0,11, and it repeats every 300mS. That is, in this procedure, first, the CPU 23
Determines whether or not FN is 0 (step 501). If FN is not 0, priority is given to function switching and light emission based on the operation mode.
The process proceeds to the wait for adjusting the execution cycle of the operation (step 505).

On the other hand, if the result of the determination in step 501 is 0, the CPU 23 first reads the A / D value based on the input from the A / D port 16 (step 502). Subsequently, the CPU 23 determines a luminescent color from the conversion table of Table 3 based on the A / D value thus read (step 503). Subsequently, the CPU 23 uses the LED driving circuit 24 to call a subroutine for lighting the LED, and the color LED 25 according to the determined emission color.
Is turned on (step 504).

Thereafter, a wait is performed for 300 mS in order to control the cycle of the repetitive operation (step 505). During this time, the color lit in step 504 emits light, and the effect of this waiting time prevents a sharp change in color. Then, after a lapse of 300 ms, the procedure from step 501 is repeated. Although the flowchart is shown here assuming that the control returns to step 1 for the sake of simplicity, in an actual program, for example, 300 mS
A realization mode may be adopted in which the processing is temporarily exited after the timer is set, and the operation is started again from step 1 after 300 mS.

[2-2-3. Specific example of processing procedure]
Determination of emission color in FIG. 13 as described above (step 5
03) and LED lighting (step 504)
FIG. 14 shows an example of a more specific processing procedure. This figure 1
4 and in the following description, the A / D value is simply referred to as A / D,
A numerical value of 255 levels representing the sound level is simply represented as “71”.

That is, in the procedure of FIG.
It is determined whether the A / D input from the D conversion circuit 22 is in the range of 1 to 71 (step 901). If YES, R: OFF and G: OFF to light the color LED 25 in sapphire color. , B: ON (step 902).

On the other hand, if the decision result in step 901 is NO
Then, similarly, A / D is 72 to 143 (step 903), 144 to 194 (step 905), 19
5 to 209 (step 907) are sequentially determined, and if there is a corresponding one, the color LED 25 is turned on in the colors of aquamarine (step 904), diamond (step 906), and topaz (step 907). Control.

If the determination result of any of the steps 901 to 907 is NO, the A / D is in the range of 195 to 255, so that R: ON, G is required to light the color LED 25 in a pallet color. : OFF, B: ON (step 909). After turning on the color LED 25, a weight of 300 msec is left (step 90).
0), repeat the procedure from the beginning.

[2-3. Effect of Second Embodiment] As described above, in the second embodiment, the given sound level (e.g.
The emission color changes to a predetermined color according to the (dio level). For this reason, even if the display is not watched,
The DIO level can be easily and intuitively confirmed, and a beautiful and interesting synergy between sound and light can be obtained.

Further, in the second embodiment, the way of changing the emission color is limited, for example, a rapid change of brightness such as a direct change of red ← → blue, a turn off →→ lighting, a violent color in a short time. By avoiding a predetermined change in the emission color such as a change in light emission, it is possible to effectively prevent eye fatigue and shock symptoms due to photosensitivity, and to improve safety.

[3. Other Embodiments] The present invention is not limited to the above embodiments, but includes other embodiments as exemplified below. For example, the details such as the configuration, the processing procedure, the emission color, the expression of the sound level, and the specific examples of the operation switches described in the above embodiment are merely examples, and can be freely changed. Alternatively, another portion such as an LCD backlight may emit light.

Similarly, the specific functions and operation modes shown in the above embodiment are merely examples, and the use of a cassette tape deck, the use of a mobile phone, or the insertion of a medium such as a CD is performed according to the specific implementation. If you want to escape,
Other functions and operation modes can be freely adopted.

Further, in the above embodiment, it is assumed that there are only two types of LED states of each color, that is, ON and OFF. However, for example, the use of a plurality of LEDs of the same color indicates the difference in brightness even in the same color. By controlling such brightness for each color LED, it is possible to combine more colors, brightness, and the like.

[0076]

As described above, according to the present invention, it is possible to provide a sound apparatus and a sound reproducing method which can intuitively and easily grasp information on an operation state, and a beautiful visual effect can be obtained.

[Brief description of the drawings]

FIG. 1 is a functional block diagram showing a configuration of a first embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of an operation panel according to the first embodiment of the present invention.

FIG. 3 is a diagram showing a blinking state of each color LED for each emission color in the embodiment of the present invention.

FIG. 4 is a view showing an example of the order of emission colors corresponding to function switching in the first embodiment of the present invention.

FIG. 5 is a diagram showing an example of the order of emission colors repeated during operation in the first embodiment of the present invention.

FIG. 6 is a flowchart showing a processing procedure when a function is switched in the first embodiment of the present invention.

FIG. 7 is a flowchart showing a processing procedure when an operation mode is switched in the first embodiment of the present invention.

FIG. 8 is a flowchart showing a processing procedure for determining a light emission color in the first embodiment of the present invention.

FIG. 9 shows a function No. in the first embodiment of the present invention. And sequence No. FIG. 7 is a diagram showing emission colors corresponding to FIG.

FIG. 10 is a flowchart showing a specific processing procedure for turning on an LED in the first embodiment of the present invention.

FIG. 11 is a functional block diagram showing a configuration of a second embodiment of the present invention.

FIG. 12 is a diagram showing luminescent colors according to the level of an acoustic level in the second embodiment of the present invention.

FIG. 13 is a flowchart illustrating an outline of a processing procedure according to the second embodiment of the present invention.

FIG. 14 is a flowchart illustrating a specific example of a processing procedure according to the second embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Center unit 2 ... Microcomputer 3 ... PLL IC 4 ... Tuner pack 5 ... CD mechanism 6 ... Display driver 7 ... LCD 8 ... Key matrix 9 ... Red LED 10 ... Green LED 11 ... Blue LED 12 ... BUS line 13 ... CD Autochanger (A / C) 14 Audio line 15 A / D port 21 Buffer and rectifier circuit 22 A / D conversion circuit 23 CPU 24 LED drive circuit 25 Color LED 35 Key switch 36 Jog key

Claims (12)

[Claims] 1. An audio device for reproducing sound, comprising: a light emitting unit for emitting light in a plurality of emission colors; and a control unit for controlling the light emitting unit in accordance with an operation state of the audio device. An acoustic device, comprising: 2. An audio device for reproducing sound, comprising: a light emitting unit for emitting light in a plurality of light emitting colors; and a control for controlling the light emitting unit so that the light emitting color differs according to a given sound level. Means, and an acoustic device comprising: 3. The audio device according to claim 1, wherein the control unit is configured to change the luminescent color through a plurality of colors when a function is switched in the audio device. . 4. The control device according to claim 1, wherein the control unit is configured to change the luminescent color through a plurality of colors according to an operation of the acoustic device. The acoustic device according to any one of claims 1 to 3. 5. The acoustic device according to claim 1, wherein the control unit is configured not to cause a predetermined change in the luminescent color. 6. The acoustic device according to claim 1, wherein the light emitting unit is configured to emit light from at least one operation switch. 7. The acoustic device according to claim 1, wherein the operation switch is configured to be operated by rotating the operation switch. 8. The light emitting unit includes at least three LEDs having different emission colors, and the control unit realizes the plurality of emission colors depending on what combination of the LEDs is turned on. The acoustic device according to any one of claims 1 to 7, wherein the acoustic device is configured. 9. A sound reproducing method for reproducing sound, comprising: a light emitting step for emitting any one of a plurality of light emitting colors; and a control for controlling the light emitting color in the light emitting step according to an operation state. A sound reproducing method, comprising: 10. A sound reproducing method for reproducing sound, comprising: a light emitting step for emitting any one of a plurality of light emitting colors; and controlling a light emitting color in the light emitting step in accordance with a given sound level. A sound reproduction method, comprising the steps of: 11. The control method according to claim 9, wherein when the function is switched in the sound reproduction method, the emission color is changed through a plurality of colors.
Or the sound reproduction method according to 10. 12. The control step, according to what operation is being performed in the sound reproduction method,
The sound reproducing method according to claim 9, wherein the luminescent color is changed through a plurality of colors.