JP2002165299

Patent Translate
Powered by EPO and Google
Notice
This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2002165299
[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an
electronic apparatus, such as an on-vehicle electronic apparatus, which generates a confirmation
sound or a warning sound notifying that an operation unit or a mechanical drive unit has been
operated.
[0002]
2. Description of the Related Art Conventionally, in electronic devices, for example, car-mounted
electronic devices such as car audio devices and car navigation devices, a confirmation sound or
warning called beep sound when the device is activated or a specific key operation is performed.
There are known devices that output sound from a piezoelectric buzzer or a speaker. For the
driver who keeps driving while sitting in a narrow space in the car for a long time, the ability to
confirm the operation content by sound is useful for safe driving.
[0003]
However, in the conventional on-vehicle electronic device, since the beep sound is a monotonous
thing such as "boo" or "pee", the purpose of confirmation or warning, which is the original
purpose of the beep sound, can be achieved. There was no case. In addition to the simple key
operation, it is considered effective to insert some sound effects in the operation of the drive unit
10-05-2019
1
such as a CD deck tray as the driver can confirm the operation.
[0004]
The present invention solves such conventional problems, and an object of the present invention
is to provide an electronic device capable of outputting an effective confirmation sound and
sound effect to a user.
[0005]
According to the electronic device of the present invention, a sound source unit having a plurality
of sound sources notifying that an operation unit or a mechanical drive unit has been operated,
and an acoustic signal from the sound source unit is output as sound. And a microcomputer for
selecting a corresponding sound source from the sound source unit according to the operation of
the operation unit or the mechanical drive unit and outputting the selected sound source to the
sound output unit. Since the sound effects are output in stereo, it is possible to output left and
right independent sounds, output sound effects with a sense of presence, and express various
sounds according to the display screen and operation mode of the electronic device. .
[0006]
In the electronic device according to the present invention, the sound source is ADPCM data
stored in the microcomputer, and the ADPCM data is D / A converted and output to the sound
output unit. A variety of sound sources can be used by converting a sound source suitable for the
electronic device into an ADCPM and storing the sound source in the microcomputer in addition
to the special beep sound.
[0007]
In the electronic device according to the present invention, the sound source unit is a sound
source IC, and an acoustic signal from the sound source IC is amplified and output to the sound
output unit. The sound source IC is used. Thus, music etc. can be used as a confirmation sound or
a sound effect.
[0008]
In the electronic device according to the present invention, the sound output unit is a
piezoelectric buzzer, and an electronic simple sound can be output.
[0009]
10-05-2019
2
Further, the electronic device of the present invention is characterized in that the sound output
unit is a speaker, and can output natural sound with high sound quality.
[0010]
Further, the electronic device of the present invention is characterized in that the speaker
doubles as a speaker of the audio device, so that duplication of parts can be avoided to reduce
cost.
[0011]
Further, the electronic device of the present invention is characterized in that the selection of the
sound source can be arbitrarily set, and this key is used when operating any key, and this sound
when operating any key. In addition, by enabling the user to arbitrarily set the selection of the
sound source, it is possible to output a sound that matches the user's preference.
[0012]
Further, the electronic device of the present invention is characterized by including a sound
source acquiring means for acquiring the sound source from the outside, receiving FM multiplex
broadcasting, digital television broadcasting, etc., downloading from Internet homepage,
electronic Various sound sources can be obtained from the outside and used by reception by email, reading from a recording medium such as an optical disk or a memory card, or the like.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be
described below with reference to the drawings.
(First Embodiment) FIG. 1 shows a configuration of a car audio system according to a first
embodiment of the present invention.
In FIG. 1, the operation unit 1 is a remote controller provided with function keys, numeric keys,
and the like.
Besides the remote control, the touch panel provided on the front of the display unit 2 and the
10-05-2019
3
operation button provided on the lower part of the display unit 2 are also included.
The display unit 2 displays the type of media output by the audio device, the volume, the number
and time of the song being output, the output of the frequency analyzer, etc. A light emitting
source such as a fluorescent tube or LED is used Be done.
The CD deck 3 is a device for reproducing a CD, and the radio tuner 4 is a device for receiving
AM broadcasting and FM broadcasting.
The MD deck 5 is a device for reproducing the MD.
The outputs of the CD deck 3, radio tuner 4 and MD deck 5 are selected by the analog switch 6,
adjusted in volume by the electronic volume 7, amplified by the power amplifier 8, and stereo
sound from the left speaker 9 and the right speaker 10. Is output as
The microcomputer 11 controls the analog switch 6 and the electronic volume 7 in accordance
with an instruction from the operation unit 1, and displays the control result on the display unit
2.
The microcomputer 11 also performs loading and unloading of the disc tray of the CD deck 3
and the MD deck 5, opening and closing operations of a liquid crystal monitor provided on the
front of the audio device, and loading and unloading of the audio device as a whole. Recently, the
mechanical drive unit 12 is controlled to open and close the center speaker provided on the front
of the audio apparatus.
[0014]
The stereo sound source data 13 is stored in the memory of the microcomputer 11 by ADPCM
data, and the output is converted by the D / A converter 14 into stereo analog signals of L
channel and R channel, respectively. It is output to the piezoelectric buzzer 16. Therefore, when
the user performs a predetermined key operation from the operation unit 1, the sound source
pre-assigned to the key is selected from the stereo sound source 13 by the microcomputer 11,
converted into a stereo signal by the D / A converter 14, and left piezoelectric It is outputted to
10-05-2019
4
the buzzer 15 and the right piezoelectric buzzer 16. This makes it easier for the user to draw
more attention than the conventional monaural sound and to achieve the purpose of
confirmation and warning. The stereo sound source data 13 can be acquired from the outside
through the sound source acquisition unit 17. The sound source acquiring unit 17 acquires a
sound source by receiving FM multiplex broadcasting or digital television broadcasting,
downloading from an Internet homepage, receiving by electronic mail, and further reading from
a recording medium such as an optical disk or a memory card. It is.
[0015]
In the above embodiment, instead of the piezoelectric buzzers 15 and 16, a small speaker may be
disposed on the front panel of the device, or the output of the D / A converter 14 is input to the
power amplifier 8 to The left speaker 9 and the right speaker 10 may be combined. Further, as
the stereo sound source data 13, in addition to the existing sound source such as a beep sound, a
sound source such as an electronic sound, a mechanical sound, a work sound, a living sound, an
anomalous sound set for the car audio system can be used. For example, when the liquid crystal
monitor on the front of the audio device is opened or closed, when the microcomputer 11 sends
an open / close signal to the mechanical drive unit 12 by the signal from the operation unit 1, the
sound source "Gee" whose door is closed is stereo sound source data 13 The sound signal may be
generated as a stereo signal by the D / A converter 14, and may be output from the left speaker
when open, and may be output from the right speaker when closed. A monaural sound source
may be used instead of the stereo sound source, and this may be divided into two channels by
the D / A converter 14 and used. In addition, when the key is operated erroneously in the
operation unit 1, a sound may be output such as a sharp drop from a high sound to a low sound
and the thing being cracked. Furthermore, when the enter key or the execution key is pressed in
the operation unit 1, a sound of Pampa Capang with good economy may be output. These
sound sources can be set arbitrarily by the user, and the microcomputer 11 stores the settings in
the memory, and selects the corresponding sound source when the corresponding key or
mechanical drive unit 12 is operated. Output.
[0016]
As described above, according to the first embodiment, the stereo sound source data 13
according to ADPCM stored in the microcomputer 11 is converted into stereo analog signals by
the D / A converter 14 and transmitted from the left and right buzzers 15 and 16 or Since the
sound is output from the speaker, the confirmation sound and the sound effect can be output in
stereo, and various sounds suitable for the display screen and operation mode of the in-vehicle
audio device can be expressed.
10-05-2019
5
[0017]
(Second Embodiment) FIG. 2 shows the configuration of a car audio system according to a second
embodiment of the present invention, and the same components as those shown in FIG. 1 are
denoted by the same reference numerals.
The second embodiment differs from the first embodiment shown in FIG. 1 in that there is no
sound source in the microcomputer 21, and instead a stereo sound source IC 22 is used and the
left speaker 9 and the right speaker 10 are also used as an audio device. It is to become.
[0018]
Since the stereo sound source IC 22 can generate heavy tone melody by singing voice and
various instruments, it can output natural sound closer to music. Therefore, by using such a
stereo sound source IC 22, it can be used in the same way as the ringing tone of a mobile phone.
That is, when the CD deck 3 is selected from the operation unit 1, the melody A is selected. When
the radio tuner 4 is selected, the melody B is selected. When the MD deck 5 is selected, the
melody C is used. As in the case of melody D, the user sets the sound source in advance and
stores the sound source in the memory of the microcomputer 21. When each operation is
performed, the microcomputer 21 selects the corresponding sound source. The control signal is
sent to the stereo sound source IC 22, amplified by the power amplifier 8, and output from the
left speaker 9 and the right speaker 10, respectively. Alternatively, when the front panel of the
audio apparatus or the center speaker is opened or closed, when the microcomputer 21 sends a
signal to the mechanical drive unit 12, it sends a control signal to the stereo sound source IC 22
to set the music preset by the user. It outputs from each speaker 9 and 10.
[0019]
As described above, according to the second embodiment, the microcomputer 21 selects the
sound source preset by the user from the stereo sound source IC 22, amplifies it by the power
amplifier 8, and then amplifies the left and right speakers 9 which are also used as audio devices.
Since the output is from 10, it can be output in stereo as a more realistic confirmation sound or
sound effect such as music.
[0020]
10-05-2019
6
Although each of the above embodiments is an example in which the present invention is applied
to an on-vehicle audio apparatus, the present invention can be applied to other on-vehicle
electronic apparatuses such as a navigation apparatus and a television / video playback
apparatus. It is applicable to an electronic device.
[0021]
As described above, according to the present invention, a sound source unit having a plurality of
sound sources for notifying that an operation unit or a mechanical drive unit has been operated,
and an acoustic signal from the sound source unit is output as sound. A plurality of sound output
units, and a microcomputer that selects a corresponding sound source from the sound source
unit according to the operation of the operation unit or the mechanical drive unit and outputs the
selected sound source to the sound output unit. Output in stereo from the sound output section
of the unit, so that left and right independent sounds can be output, realistic sound effects can be
output, and various sounds matching the display screen and operation mode of the electronic
device can be output. And can output effective confirmation sound and sound effects to the user.
10-05-2019
7