JP3379656B2 - In-car audio equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted acoustic device used in automobiles and the like.

[0002]

2. Description of the Related Art FIG. 8 is a block diagram of a conventional vehicle-mounted acoustic device disclosed in Japanese Utility Model Publication No. 57-30210. In this figure, 1 is a sound data output device such as a cassette deck or a radio tuner, and 2 is information sound data by voice having various information to be notified to the driver by voice and information sound data by voice to be output. An output device, 3 is a voice information sound data detection unit that detects the input of voice information sound data and outputs a switching signal to a switch 4 (described later), and 4 is a speaker 7 of the sound data output device 1. A switch for switching between output to a speaker 7 (described later) of the voice information sound data output device and reference numeral 5 denotes a voice information sound data detection unit 3 and a switch 4.
It is a switch circuit composed of and. 6 is a speaker on the front passenger's side, 7 is a speaker on the front driver's side, 8,
9 is a speaker in the rear seat.

Since the conventional vehicle-mounted audio device is constructed as described above, the sound data is normally transmitted from the sound data output device 1 to the speakers 6, 7, 8, 9 and music or the like flows in the vehicle. When informing the driver of the information, the audio information sound data output device 2 outputs the audio information sound data, and the audio information sound data detection unit 3 detects the audio information sound data and causes the switch 4 to switch. Output a switching signal. When this switching signal is input, the switch switches the output to the speaker 7 to the input from the information sound data detection unit 3 by voice. The information sound data by voice is transmitted to the speaker 7, and various information by voice is transmitted from the speaker 7 to the driver. At this time, the other speaker 6,
Music and the like are being played from 8 and 9 as usual.

[0004]

Since the conventional vehicle-mounted audio device is constructed as described above, the audio information sound data output device 2 cannot be used also as the sound data output device 1. Further, when the information sound data by voice is input to the speaker 7, the sound data is not input to the speaker 7. Therefore, when the information sound data by voice is input, the output of the speaker by the sound data becomes a three-dimensional sound. You can't do that, and you lose your sense of presence.

The present invention is intended to solve the above problems, and an object thereof is to obtain a vehicle-mounted acoustic device which can be used both as an information sound data output device and a sound data output device. Another object of the present invention is to provide a vehicle-mounted acoustic device that can output information sound data that is easy to hear from a speaker without impairing the realism of the speaker output due to the sound data.

[0006]

In a vehicle-mounted acoustic device according to the present invention, a frequency characteristic detecting section for detecting a characteristic for each frequency of information sound data is provided, and a frequency characteristic detecting section is provided between the sound data output apparatus and the superposing section. is intended to provide a damping unit for attenuating the frequency characteristic of the sound data put together with the characteristics of each frequency of the information sound data detected by the frequency characteristic detection section.

In addition, a predetermined frequency range is added to the information sound data.
The additional data having the data shown and the data showing the predetermined amplitude.
Data is added and the sound data is attenuated according to the additional data.
It is intended to provide a damping unit that allowed.

Further, the attenuating section is a sound quality adjusting section and a volume adjusting section.
Section, balance adjustment section, fader adjustment section
Sound quality, volume, is shall adjust the balance of the front, rear, left and right.

In addition, the sound data and the information sound data are used to generate a sound.
Is equipped with multiple speakers that generate
Attenuated by the attenuator, superposed by information sound data,
Output from the superimposing section to a predetermined speaker among multiple speakers
It was made to be forced .

Further, the sound data output to the superimposing section is reduced.
The output from this superposition section is supplied to
Only the speakers closest to both driver's seats are supplied .

If a plurality of sound data output devices are provided,
Monitor, information sound data output device is a sound data output device small
Uses at least one of the information sound data output device and the attenuation unit.
In between, a switching unit is provided for outputting the information sound data output from the information sound data output device to the superimposing unit and outputting the sound data output from the information sound data output device to the attenuating unit .

[0012]

In the vehicle-mounted acoustic device configured as described above, the frequency characteristic detecting section for detecting the characteristic of the information sound data for each frequency is provided, and the frequency characteristic detecting section is provided between the sound data output apparatus and the superposing section. since provision of the attenuation section for attenuating the frequency characteristic of the sound data put together with the characteristics of each frequency of the detected information sound data section, are attenuated in the frequency characteristics put together the <br/> characteristic for each frequency of the information sound data The information sound data is superimposed on the reproduced sound data by the superimposing unit.

Further , a predetermined frequency range is added to the information sound data.
The additional data having the data shown and the data showing the predetermined amplitude.
Data is added and the sound data is attenuated according to the additional data.
Since provision of the damping portion that was, added to the information sound data division
Corresponding to the additional data showing the wave number domain and amplitude,
Ru attenuates the sound data at.

Further, the attenuating section is a sound quality adjusting section and a volume adjusting section.
Section, balance adjustment section, fader adjustment section
Of sound quality, volume, Runode to adjust the balance of left and right front and rear, sound
Attenuate the sound data by adjusting the quality, volume and front / rear / left / right balance .

The sound data and the information sound data are used to generate a sound.
Is equipped with multiple speakers that generate
Attenuated by the attenuator, superposed by information sound data,
Output from the superimposing section to a predetermined speaker among multiple speakers
Since to be force, only the sound data input to a given speaker is attenuated by the attenuation section, information sound data is superimposed by the superimposing unit.

Further, the sound data output to the superimposing section is reduced.
The output from this superposition section is supplied to
Since it is supplied only to the speaker closest to both driver's seats, only the sound data input from the driver 's seat to the nearest speaker is attenuated in the attenuator, and the information sound data in the superimposing part. Are superimposed.

If a plurality of sound data output devices are provided,
However, the information sound data output device is less than the sound data output device.
Uses at least one of the information sound data output device and the attenuation unit.
Information sound output from the information sound data output device during
Data to the superposition section and output from the information sound data output device
Since the switching unit for outputting the sound data to be output to the attenuating unit is provided, the information sound data from the information sound data output device is stored in the superimposing unit.
Sound data from the information sound data output device is reduced.
It is output to the aging part .

[0018]

EXAMPLES Example 1. 1 is a block diagram showing a first embodiment of the present invention, FIG. 2 is a block diagram showing an audio adjusting section, FIG. 3 is an explanatory diagram showing an output state of each speaker,
FIG. 4 is a flowchart showing the operation of the first embodiment.

In these figures, 20 is a CD player section as an information sound data output device which is used both as a music CD reproducing device and a voice information CD reproducing device, and 21 is a CD.
When the player unit 20 reproduces the audio information CD, the CD player unit 20 receives an input from a sensor or other information device.
And an information control unit 22 for sending a signal to a main control unit 31 (described later), and a CD player control unit 22 for controlling the CD player unit 20 when the music CD is reproduced by the CD player unit 20. Reference numeral 23 is a radio unit as a sound data output device for receiving a radio broadcast, and 24 is a tape unit as a sound data output device for reproducing a cassette tape. The CD player unit 20, the radio unit 23, and the tape unit 24 each have a right (R in the drawing) output and a left (L in the drawing) output.

Reference numeral 25 is a switch for switching the output destination of the right output of the CD player unit 20, and 26 is a switch for switching the output destination of the left output of the CD player unit 20. The switch circuit 27 serves as a switching unit by the switches 25 and 26. Is configured. Reference numeral 28 denotes a switch for switching the right output input to the audio adjustment section 37 (described later), and 29 is a switch for switching the left output input to the audio adjustment section 37 (described later).
The switch circuit 30 is configured by

Reference numeral 31 is an information control unit 21, a CD player control unit 22, a radio unit 23, a tape unit 24, and a switch circuit 2.
7, a main control unit for centrally controlling the audio adjusting unit 37 and other electric circuits, 32 is an operation button unit for inputting operation data to the main control unit 31, and the operation button unit 32 is a CD. -ON button 33, radio-ON button 3
4. The tape-ON button 35 and the other operation button group 36.

Reference numeral 37 is an audio adjusting section as an attenuating section to which the right output and the left output are inputted from the switch circuit 30. As shown in FIG. 2, the audio adjusting section 37 includes a sound quality adjusting section 38, a volume adjusting section 39, a balance adjusting section 40 for adjusting the balance between right output and left output, output to the front seats and output to the rear seats. There is full Eda adjustment unit 41 for adjusting the balance between the output and is controlled by the main control unit 31, respectively. Reference numeral 42 is a superimposing unit in which an output to the front seat right speaker 46 (described later) output from the audio adjusting unit 37 (hereinafter, front seat R output) and an output from the switch circuit 27 are superimposed, and 43 is an audio adjusting unit. This is a superimposing unit that superimposes the output from the front seat left speaker 47 (described later) (hereinafter, front seat L output) and the output from the switch circuit 27.

Reference numeral 44 is an amplification section for amplifying the outputs from the superposition sections 42 and 43, and 45 is an output to the rear seat right speaker 48 (described later) output from the audio adjustment section 37 (hereinafter, rear seat R output). This is an amplification unit that amplifies an output (hereinafter, rear seat L output) to the rear left speaker 49 (described later) output from the audio adjustment unit 37. Reference numerals 46, 47, 48 and 49 are a front seat right speaker, a front seat left speaker, a rear seat right speaker and a rear seat left speaker, respectively. The front right speaker 46 is the speaker closest to the driver.

Next, the operation of the above embodiment will be described.
When listening to the voice of the radio, radio-ON of the operation button section 32
By pressing the button 34, an operation signal is transmitted from the main control unit 31 to the radio unit 23, and the radio unit 23 outputs right output and left output. Further, a switching signal is sent from the main control unit 31 to the switch circuit 30, and the switch 28,
29 switches to the radio section side, respectively, and the radio section 23
Is output to the audio adjustment unit 37. Further, a switching signal is sent from the main control unit 31 to the switch circuit 27, the switches 25 and 26 are switched to the audio adjusting unit side, and the superimposing units 42 and 43 superimpose anything on the front R output and the front L output. However, the front seat R speaker 46, the front seat left speaker 47, the rear seat right speaker 48, and the rear seat left speaker 49 pass through amplifiers 44 and 45, respectively. The rear seat L output is input, and the sound of the radio is played in the car. Also when listening to the sound of the tape, the sound of the tape is played in the vehicle by pressing the tape-ON portion 35 of the operation button portion 32 as in the case of listening to the sound of the radio.

When the sound of a music CD is heard by the CD player section, by pressing the CD-ON button 33 of the operation button section 32, an operation signal is transmitted from the main control section 31 to the CD player control section 22, and this CD is transmitted. Player control unit 22
Thus, the operation signal is transmitted to the CD player unit 20. Further, a switching signal is sent from the main control section 31 to the switch circuit 27, the switches 25 and 26 are switched to the audio adjusting section side, and the output from the CD player section 20 is input to the switch circuit 30.

Further, a switching signal is sent from the main control section 31 to the switch circuit 30, the switches 28 and 29 are switched to the CD player section side, and the CD player section 2 is switched.
The output from 0 is input to the audio adjusting unit 37. C
When the audio information CD is loaded in the D player section 20, the CD player section 20 transfers the audio information C to the information control section 21.
A signal notifying that D is attached is sent, a switching signal is sent from the information control unit 21 to the main control unit 31, and the main control unit 3
When the switching signal is sent from 1 to the switch circuit 27, the switches 25 and 26 are switched to the superimposing sections 42 and 43 side.

In the case of A and C in FIG. 3, that is, when the audio information is not output from the CD player unit 20, the radio unit 23 or the tape unit 2 as shown in FIGS. 3B and 3C.
As described above, the output of 4 is the speaker 46, 47,
Sent to 48, 49. In the case of B in FIG. 3, that is, C
When the audio information is output from the D player unit 20, the superimposing unit 4 is output from the CD player unit 20 via the switch circuit 27.
The audio information is sent to Nos. 2 and 43, and the fader adjustment unit 4 of the audio adjustment unit 37 is instructed by the main control unit 31.
1 attenuates the output to the front seats by a certain amount, and the superimposing sections 42, 43
In FIG. 3, the front seat R output and the front seat L output are superimposed on each other.
As shown in the middle (b) and (c), the audio information of the radio section or the tape section attenuated by the attenuating section is superposed on the outputs of the front seat right speaker 46 and the front seat left speaker 47 in a mixed balance that is easy to hear. To be done.

The operation during interruption of voice information will be described in detail with reference to FIG. In this figure, the CD output switching SW is the switches 25 and 26, the music output side is the audio adjusting section side, the information output side is the superimposing section side, and the source switching SW is the switches 28 and 29. That is, Y is YES and N is NO. In step (hereinafter abbreviated as S) 101, the audio adjustment unit 37 is initialized at the time of starting the operation of the apparatus, and if the CD player unit 20 reproduces the music CD in S102, the process proceeds to S103, and if not, the process proceeds to S106.

In S103, the CD output switching SW is switched to the music output side by the switching command from the main control unit 31, in S104, the source switching SW is switched to the CD side by the switching command from the main control unit 31, and the CD reproduction is performed in S105. The operation starts. In S106, the CD output switching SW is switched to the information output side, and if the tape unit 24 is operated in S107, the process proceeds to S108, and if not, the process proceeds to S110.

In S108, the source switching SW is switched to the tape side, and in S109, the tape section 24 is operated. The source switching SW is switched to the radio side in S110, and the radio unit 23 is operated in S111.
In S112, if there is a voice information interruption, the process proceeds to S113, and if not, the process proceeds to S117. In S113, the setting of the audio adjusting unit 37 is changed in time with the interruption of the voice information.

In S114, the voice information is output and the information shown in FIG.
In the state like the middle B, if the interruption of the voice information is released in S115, the process proceeds to S116, and if not, the process returns to S115 again. In S116, the audio adjusting unit 37 is returned to the initial setting, and in S117, it is confirmed whether another audio information interrupt is made. If there is another audio information interrupt, the process proceeds to S112. If not, the CD player unit 20, the radio unit 23, or the tape. The part 24 continues to operate.

Example 2. FIG. 5 is a block diagram showing a second embodiment of the present invention, FIG. 6 is an explanatory view showing an output state of each speaker, and FIG. 7 is a flow chart showing an operation of the second embodiment. In these figures, when the CD for audio information is mounted on the CD player unit 20, a switching signal is sent from the main control unit 31 to the switch circuit 51 as a switching unit, and the switch 25 in the switch circuit 51 causes the switch 25 to be on the superposition unit 42 side. Switch to. Further, the front seat R output output from the audio adjusting unit 37 is attenuated by the attenuator circuit 52 as an attenuating unit controlled by the main control unit 31, and the superimposing unit 42 superimposes the audio information output.

In the case of B in FIG. 6, that is, when the voice information is interrupted, the voice information is superimposed on the front seat R output in the front seat right speaker 46 as shown in FIG.
7 and the rear seat speakers 48, 49 output the front seat L and the rear seat L,
The R output is output as it is. In addition, as shown in FIG.
If there is an interruption of the voice information in 12, proceed to S201,
In S201, the attenuation control for uniformly attenuating the front seat R output is performed by the attenuator circuit 52, and when the interruption of the voice information is released in S115, the process proceeds to S202, and in S202, the attenuation control by the attenuator circuit 52 ends. The other configurations and operations are the same as those in the first embodiment, and therefore the same reference numerals are given and omitted.

Further, although the fader adjusting unit is used as the attenuating unit in the first embodiment, the balance adjusting unit is used as the attenuating unit to attenuate the sound data, and the superimposing unit is applied to the attenuated R output or L output. May be provided. Further, although the attenuating portion and the superposing portion are provided for the front seat right speaker in the second embodiment, the attenuating portion and the superposing portion may be provided for other speakers. Further, although the number of speakers is four in each of the above embodiments, the number of speakers is not limited.

Further, although the attenuator circuit is used as the attenuator in the second embodiment, for example, 100 [Hz] to 2
It is also possible to use a filter circuit that attenuates only a specific frequency such as 00 [Hz]. Further, although the attenuator circuit is used as the attenuator in the second embodiment, the frequency characteristic detection for detecting the characteristic for each frequency of the information sound data is performed.
The provided parts, put together on the frequency characteristic of the information sound data detected by the frequency characteristic detection unit, it is also possible to a circuit for attenuating the attenuation section using equalizer like the frequency characteristic of the sound data.

Example 3. In each of the above embodiments,
It is also possible to provide a sound quality adjusting unit, a sound volume adjusting unit, or the like between the CD player unit and the superimposing unit to adjust the sound quality, volume, etc. of the information sound data. Further, in the second embodiment, the front seat right speaker is the speaker closest to the driver. However, in the case of a left-hand drive vehicle, it goes without saying that the front seat left speaker is the speaker closest to the driver. . Further, although the vehicle has been described in each of the above-described embodiments, it may be used for other acoustic devices such as an indoor audio system.

Example 4. In each of the above embodiments, the information sound data output device serves as both the information sound data output device and the sound data output device, but it goes without saying that only the information sound data may be output. In each of the above-described embodiments, the CD data player, the radio unit, and the tape unit are shown as the sound data output device.
i Disc player (MD player) and Digita
l Audio Tape player (DAT player)
And Digital Compact Cassette
A player (DCC player) or the like may be used.

Further, in each of the above embodiments, a CD player was used as the information sound data output device, but an MD player,
A DAT player, a DCC player, an FM multiplex broadcasting tuner, or the like may be used. In the first embodiment, the front seat R output and the front seat L output are attenuated by the fader adjusting unit,
Although the driving information sound data is superimposed in the superimposing section,
The rear seat R output and the rear seat L output may be attenuated by the fader adjusting unit, the superimposing unit may be provided on the rear seat outputting side, and the superimposing unit may superimpose the information sound data. Furthermore, in each of the above embodiments,
Although the CD player unit is used as the information sound data output device, a road beacon receiver, a navigation device, an alarm device for notifying a vehicle failure, or the like may be used.

[0039]

Since the present invention is constructed as described above, it has the following effects. A frequency characteristic detection unit that detects the characteristic for each frequency of the information sound data is provided, and a sound that matches the characteristic for each frequency of the information sound data detected by the frequency characteristic detection unit is provided between the sound data output device and the superposition unit. Since the attenuator for attenuating the frequency characteristics of the data is provided, the information sound data is superimposed on the sound data with the frequency characteristics attenuated by the superimposing section, so that it is easy to hear without impairing the realism of the output by the sound data. The output by the information sound data can be obtained.

Also, a predetermined frequency range is added to the information sound data.
The additional data having the data shown and the data showing the predetermined amplitude.
Data is added and the sound data is attenuated according to the additional data.
Since provision of the damping portion that was, added to the information sound data division
Since the information sound data to the sound data is attenuated in response to the additional data showing the wavenumber region and amplitude are superimposed superimposing unit,
It is possible to obtain the output of the information sound data which is easy to hear without impairing the realism of the output of the sound data.

Further, the attenuating section is a sound quality adjusting section and a volume adjusting section.
Section, balance adjustment section, fader adjustment section
Of sound quality, volume, Runode to adjust the balance of left and right front and rear, sound
Since the sound data is attenuated by adjusting the quality, the sound volume, and the front-rear and left-right balance, it is possible to obtain an easily audible output of the information sound data without impairing the realism of the output of the sound data.

Also, sound is generated by sound data and information sound data.
Is equipped with multiple speakers that generate
Attenuated by the attenuator, superposed by information sound data,
Output from the superimposing section to a predetermined speaker among multiple speakers
Since to be force, only the sound data input to a given speaker is attenuated by the attenuation section, information sound data superimposing unit is superimposed, without impairing the realism of the output by the sound data, information The sound data can be output only to the required speaker.

Further, the sound data output to the superimposing unit is reduced.
The output from this superposition section is supplied to
Since it is supplied only to the speaker closest to both driver's seats, only the sound data input from the driver 's seat to the nearest speaker is attenuated in the attenuator, and the information sound data in the superimposing part. Is superimposed, the information sound data can be reliably transmitted to the driver without impairing the realism of the output by the sound data.

If a plurality of sound data output devices are provided,
However, the information sound data output device is less than the sound data output device.
Uses at least one of the information sound data output device and the attenuation unit.
Information sound output from the information sound data output device during
Data to the superposition section and output from the information sound data output device
Since the switching unit for outputting the sound data to be output to the attenuating unit is provided, the information sound data from the information sound data output device is stored in the superimposing unit.
Sound data from the information sound data output device is reduced.
Since the information sound data output device is used as the information sound data output device and the sound data output device, the information sound data output device can easily serve as the information sound data output device.

[Brief description of drawings]

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

FIG. 2 is a block diagram showing an audio adjusting unit according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an output state of each speaker according to the first embodiment of the present invention.

FIG. 4 is a flowchart showing an operation in the first embodiment of the present invention.

FIG. 5 is a block diagram showing a second embodiment of the present invention.

FIG. 6 is an explanatory diagram showing an output state of each speaker in Embodiment 2 of the present invention.

FIG. 7 is a flowchart showing an operation in the second embodiment of the present invention.

FIG. 8 is a block diagram showing a conventional on-vehicle audio device.

[Explanation of symbols]

1 sound data output device 2 Audio information data output device 20 CD player section 23 Radio Club 24 tape section 27 switch circuit 30 switch circuit 37 Audio adjuster 41 Fader adjustment section 42 Superimposition part 43 Superposition section 46 front seat right speaker 47 Front seat left speaker 48 Rear seat right speaker 49 Rear seat left speaker 51 switch circuit 52 Attenuator circuit

Claims (6)

(57) [Claims] 1. A sound data output device for outputting sound data,
An information sound data output device that outputs information sound data, and a superimposing unit that superimposes the information sound data output from the information sound data output device on at least a part of the sound data output from the sound data output device , frequency characteristic detection section for detecting a characteristic for each frequency of the information sound data, between the sound data output unit and the superimposing unit, for each frequency of the information sound data detected by the frequency characteristic detection section <br An on- vehicle acoustic device including an attenuator that attenuates the frequency characteristic of the sound data in accordance with the characteristic. 2. A sound data output device for outputting sound data,
An information sound data output device that outputs information sound data, and a superimposing unit that superimposes the information sound data output from the information sound data output device on at least a part of the sound data output from the sound data output device. In an on-vehicle audio device provided, additional data having data indicating a predetermined frequency region and data indicating a predetermined amplitude is added to the information sound data, and the sound data is attenuated in accordance with the additional data. An on-vehicle acoustic device having an attenuator. 3. The attenuating unit includes a sound quality adjusting unit, a volume adjusting unit, a balance adjusting unit, and a fader adjusting unit, and adjusts the sound quality, volume, and front / rear / left / right balance of the sound data. The vehicle-mounted acoustic device according to claim 2. 4. A plurality of speakers for generating a sound by sound data and information sound data, wherein a part of the sound data is attenuated by an attenuator, the information sound data is superposed by a superimposing unit, and the superimposing unit. Is output to a predetermined speaker from among the plurality of speakers, the vehicle-mounted acoustic device according to claim 1 or 2. 5. The sound data output to the superimposing unit is supplied through the attenuating unit, and the output from the superimposing unit is supplied only to the speaker closest to the driver's seat of the vehicle. The vehicle-mounted acoustic device according to claim 4. 6. A plurality of sound data output devices are provided, the information sound data output device also serves as at least one of the sound data output devices, and the information sound data output device and the attenuator are provided with the information sound data output device. 2. A switching unit for outputting the information sound data output from the data output device to the superimposing unit and outputting the sound data output from the information sound data output device to the attenuating unit. The vehicle-mounted acoustic device according to claim 2.