JPH0787392B2 - In-vehicle audio equipment display device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for vehicle-mounted audio equipment such as a radio receiver, a cassette deck, and a compact disc (CD) player.

2. Description of the Related Art Conventional display devices for in-vehicle audio equipment have a plurality of display devices such as a reproduction signal level display, a reception frequency display, a volume display, and a cassette deck operation status display on the front surface of the main body of the device. It was something to do.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, since the conventional display device for the on-vehicle audio equipment has a configuration in which a plurality of display devices are arranged on the front surface of the device main body with limited space as described above, The space for was small, and the displayed contents were difficult to see. In order to eliminate such inconvenience, a display device has been proposed in which one display is also used as two displays (for example, Japanese Utility Model Publication No. 61-31432). There was a limit to the size of the vessel. In addition, various types of display devices for displaying the volume have been known, but even the largest display device has a width of the device body.

The present invention provides a display device for an in-vehicle audio device, which enables a display larger than the lateral width of the device body and makes it easy to grasp the display content by effectively utilizing the space in front of the device body.

Means for Solving the Problems In order to solve the above-mentioned conventional problems, the present invention has a display plate arranged on the front surface of an audio equipment main body, and is arranged annularly at a predetermined interval on the outer peripheral portion of the display plate. A plurality of light emitters, an adjustment mode selection unit that selects an adjustment mode such as volume, bass range, treble range, left / right balance, front / rear balance, and reproduction signal level, and an adjustment amount in the adjustment mode selected by the adjustment mode selection unit. Adjustment amount setting means for setting
A display control means for sequentially lighting or blinking the adjacent light emitting bodies in a number corresponding to the adjustment amount of the adjustment amount setting means in a predetermined direction starting from a predetermined position on the outer peripheral portion of the display plate. Is.

Therefore, according to the present invention, by selecting the adjustment mode by the adjustment mode selection means and setting the adjustment amount by the adjustment amount setting means, the number of adjacent light emitters corresponding to the adjustment amount is set in the predetermined direction from the starting position. Further, it has an advantage that it is possible to sequentially turn on or blink the light along the outer circumference of the display plate, and it is easy to grasp the display content of the adjustment amount such as the volume.

Embodiment FIG. 1 to FIG. 3 show a front view of an on-vehicle audio equipment (a composite audio equipment of a radio receiver, a cassette deck and a CD autochanger) in an embodiment of the present invention. First
In FIGS. 3 to 3, reference numeral 1 denotes an apparatus main body, and the front surface of the apparatus main body 1 is roughly divided into an upper stage portion and a lower stage portion. In the upper part, 2 is a power switch, 3 is a dust cover which is openably and closably provided in a cassette insertion port, 4 is an eject button for ejecting a cassette, 5 is a loudness control button, 6 is a time call button, 7 is an attenuator and Dimmer control button,
8A and 8B are up and down buttons for controlling volume, volume balance, and the like. The lower part of the front surface of the apparatus main body 1 is composed of a liquid crystal display plate and a switch group including transparent electrodes arranged on the front surface of the liquid crystal display plate. The lower part of the display differs depending on the mode as shown in FIGS. FIG. 1 shows a display example in the radio mode, FIG. 2 shows a display example in the cassette mode, and FIG. 3 shows a display example in the CD mode. As is clear from FIGS. 1 to 3, the liquid crystal display panel is divided into a plurality of areas, and one or a plurality of function display patterns are formed in each area.
For example, the function display patterns (FM), (PRG), and () are formed in one area. In FIGS. 1 to 3, 9 is a radio selection button, and this radio selection button 9 is used when receiving a radio broadcast during a cassette performance. Reference numeral 10 denotes a CD selection button, which is used when switching to CD performance while receiving a radio broadcast or playing a cassette. Reference numerals 11 to 23 are function switching portions, and each of the function switching portions 11 to 23 is composed of a function display portion made of a liquid crystal display plate and a switch made of a transparent electrode. As shown in FIGS. 1 to 3, the function display of each function switching unit 11 to 23 is different in the radio mode, the cassette mode, and the CD mode. In FIG. 4, the switches arranged in the lower part are indicated by circles, and a plurality of switches composed of transparent electrodes are arranged on the front surface of the liquid crystal display panel. Reference numeral 24 denotes a display unit.The display unit 24 performs reception frequency display, frequency band display, channel number display, stereo presence / absence display, loudness presence / absence display, etc. in the radio mode, and deck status display in the cassette mode, Playback surface display, curve display, etc.
In CD mode, the number of playing discs, the number of tracks,
The elapsed time is displayed. 25 is an adjustment mode switching unit that switches the adjustment modes of volume, bass, treble, balance, and fader, and displays these adjustment modes.By operating the switches of this adjustment mode switching unit 25, the adjustment modes can be switched sequentially. , The changed adjustment mode display flashes. By operating the adjustment mode switching section 25 and the up and down buttons 8A and 8B, the volume and the like can be adjusted. For example, when the up and down buttons 8A and 8B are operated in a state where the volume adjustment mode is switched, the volume is increased or decreased.

Next, operations in the radio mode, cassette mode, and CD mode will be described.

(Radio Mode) In the radio mode shown in FIG. 1, when the function switching unit 11 or 12 is operated, the mode is switched to the FM broadcast receiving mode or the AM broadcast receiving mode. When the function switching unit 14 or 16 is operated, the receiving station is changed. Further, by operating the function switching unit 13, it is possible to reduce noise when receiving an FM broadcast. Function switching unit 15
When is operated, the automatic preset mode is switched to, and 6 broadcasting stations with strong current are automatically assigned to the preset buttons 18 to 23. When the preset buttons 18 to 23 are operated, the broadcasting stations previously stored in the preset buttons 18 to 23 are selected.

(Cassette Mode) When the cassette is inserted into the cassette insertion slot in the radio mode shown in FIG. 1, the cassette mode is changed to that shown in FIG. In this cassette mode, when the function switching section 11 is operated, the playing surface of the tape is switched, when the function switching section 12 is operated, the tape performance is temporarily stopped, and when the function switching section 13 is operated, The beginning part of each music recorded on the tape can be reproduced one by one, and by operating the function switching parts 14-16, the fast rewind (REW) of the tape, the stop of the fast forward fast rewind, the tape Fast forward (FF) can be performed. Furthermore, the function switching section 21 ~
By operating 23, it is possible to find the beginning of a song, repeatedly play the song currently being played, and skip a silent portion of a tape.

(CD mode) CD switching button in radio mode or cassette mode
When 10 is operated, the mode is changed to the CD mode shown in FIG.
The CD changer of this embodiment sequentially takes out 12 CDs.
It is set in a CD player to perform a CD performance. When the function switching unit 11 is operated, the CD performance is started, and when the function switching unit 12 is operated, the CD performance is stopped. Further, by operating the function switching section 13, it is possible to sequentially play the beginning portions of a plurality of songs recorded on the CD. When the function switching section 14 or 16 is operated, the cue of the previous music or the next music is performed, and when the function switching section 15 is operated, the CD performance can be stopped. Further, when the function switching section 18 is operated, it is possible to switch the disk track display and the elapsed time display on the display section 24, and when the function switching sections 21 and 22 are operated, the disks to be played can be switched.

In FIG. 1 to FIG. 3, 39 is a display pattern as a light-emitting body which is annularly arranged at a predetermined interval on the outer peripheral portion of the liquid crystal display plate arranged on the lower front surface of the apparatus main body 1. With 39, volume (VOL) display, bass adjustment (BASS) display, treble adjustment (TRE) adjustment display, left and right sound balance (BAL) display, front and back sound balance (FADER)
It is possible to perform display and level display of the reproduced left and right signals.

FIG. 5 is a block diagram of the present embodiment. In FIG. 5, reference numeral 26 is a CD changer, 27 is a cassette deck, 28 is an electronic tuner, and these audio devices are control units including a microcomputer or the like. Controlled by 29.
Reference numeral 30 designates a switch and an eject button 4, a loudness control button 5, a time calling button 6, an attenuator, a dimmer control button 7, and an operation section composed of switches driven by up and down buttons 8A and 8B, Reference numeral 31 is a display unit composed of a liquid crystal display plate arranged on the lower stage of the front of the apparatus main body 1,
The display unit 31 is driven by the driver 32. A switching circuit 33 is switched by the signal output from the control unit 29, and the reproduction signal of the CD changer 26, the cassette deck 27 or the electronic tuner 28 is input to the electronic volume 34. The electronic volume 34 is a control unit
Controlled by the control signal from 29, volume (VOL) control, bass / treble adjustment (BASS) (TRE), left and right speaker volume adjustment (BAL), front and rear speaker volume adjustment (FADE
R) Reference numerals 35 and 36 are power amplifiers, 37A and 37B are speakers arranged on the front left and right sides in the vehicle compartment, and 38A and 38B are speakers arranged on the rear left and right sides in the vehicle compartment.

Next, the configuration of the control unit 29 will be described. In FIG. 5, reference numeral 40 denotes a key processing means, and this key processing means 40 discriminates various switches operated by the operation unit 30, and changes or updates the data stored in the storage means 41 and The determination result is sent to the timing control means 42. The timing control means 42 determines the timing of various operations according to the key discrimination result, and controls the storage control means 43, the device selection control means 44, the display control means 45, and the device control means 46. The storage control means 43 designates an address for writing data to or reading data from the storage means 41. The storage means 41 includes data for controlling the electronic tuner 28, data for controlling the CD changer 26, data for controlling the cassette deck 27, and an electronic volume 34.
Data for control, data for controlling the driver 32, etc. are stored, and the data read from the storage means 41 is transferred to the display control means 45, the device control means 46, and the serial interface 47. The device selection control means 44
Specifies a device (electronic tuner 28, CD changer 26, cassette deck 27, electronic volume 34, driver 32) for transferring the data read from the storage means 41.
The data read from the storage means 41 is transferred to the electronic tuner 28, the electronic volume 34, the driver 32, etc. via the serial interface 47 and the interface 48. Further, the data for controlling the cassette deck and the data for controlling the CD changer are transferred to the cassette deck 27 or the CD changer 26 via the device control means 46. 49
Is a timer for managing the time of the timing control means 36, and 50 is
CD changer 26, cassette deck 27, electronic tuner 28
Is an A / D conversion means for A / D converting the output of the reproduction level data converted by the A / D conversion means 44.
The display data input from the display control means 45 is input to the serial interface 47 and the interface 48.
The display pattern 39, which is transferred to the driver 32 via the, and controls the display 31 to blink.

FIGS. 6 (A) and 6 (B) show an example in which the volume is displayed by the display pattern 39. When the volume adjustment mode (VOL) is selected by operating the adjustment mode switching unit 25, FIG. ) And (B), a number of display patterns corresponding to the set volume are turned on clockwise from the starting point (0). When the up and down buttons 8A and 8B are operated in this volume adjustment mode, the key processing means 40 discriminates the operation of the up and down buttons, and the discrimination result is transferred to the timing control means 42. The operation of the up and down buttons is transmitted to the display control means 45. As a result, display data is output from the display control means 45, this display data is transferred to the driver 32 via the serial interface 47 and the interface 48, the number of lights of the display pattern 39 is increased or decreased, and the volume is displayed. . In addition, in FIGS. 6A and 6B, a black display pattern indicates a lit display pattern.

FIGS. 7A and 7B show display examples of the display pattern 39 in the bass range adjustment mode (BASS) or the treble range adjustment mode (TRE), and when the up button 8A is operated in these modes. The key processing means 40 makes a key determination, the result of the determination is transmitted to the dimming control means 42, further transmitted to the display control means 45, and the display data is output from the display control means 45. This display data is
Transferred to the driver 32 via the serial interface 47 and the interface 48, the number of lights of the display pattern 39 increased from the starting point (0) in the direction of the arrow as shown in FIG. Is displayed. When the down button 8B is operated, as shown in FIG. 7 (B), the number of lit display patterns decreases from the starting point (0) in the arrow direction,
Indicates that the low frequency range has been reduced.

FIGS. 8A and 8B show the left-right balance adjustment mode (BA
The display example of the display pattern 39 in L) is shown. When the up button 8A is operated in this mode, as shown in FIG. 8A, the lighting display pattern moves to the right from the starting point (0). , Displays that the sound of the right speaker is emphasized. In addition, if the down button 8B is operated, FIG. 8 (B)
As shown in, the lighting display pattern is moved to the left to display that the sound of the left speaker is emphasized.

9 (A) and 9 (B) show the front-back balance adjustment mode (FA
DER) shows a display example of the display pattern 39,
When the up button 8A is operated in this mode, as shown in FIG. 9 (A), the lighting display pattern moves from the starting point (0) in the arrow direction, indicating that the sound of the front speaker is emphasized. Further, when the down button 8B is operated, as shown in FIG. 9 (B), the lighting display pattern is moved in the arrow direction from the starting point (0), which indicates that the sound of the rear speaker is emphasized.

10 (A), (B), and (C) show examples in which the left and right reproduced sound levels are displayed by the display pattern 39. FIG. 10A shows the left (L) reproduced sound level in the upper part of the display pattern 39, and the right (R) reproduced sound level in the lower part. FIG. 10B shows the left (L) reproduced sound level on the left side of the starting point (0) and displays the right (R) reproduced sound level on the right side of the starting point (0). In FIG. 10 (C), the left (L) reproduced sound level is displayed with a display pattern above the starting point (0) on the left side of the display pattern 39, and the right (() with the display pattern below the starting point (0). The playback sound level of R) is displayed. The reproduced sound level display of FIGS. 10A, 10B, and 10C is sequentially switched by operating the switch of the function switching unit 24.

As described above, in the above embodiment, the display pattern 39 arranged annularly on the outer periphery of the liquid crystal display plate is used to display the volume and the like, and a display longer than the width of the device body 1 is obtained. The volume display is easy to see. Further, in the present embodiment, as shown in FIG. 6, the display pattern 39 is annularly turned on or off in a predetermined direction from the starting point (0) according to the volume adjusting operation, and the volume adjusting volume is rotated. The same display as is possible. Further, in the present embodiment, a display longer than the main body 1 of the apparatus can be used for display other than the volume display, that is, the left and right sound balance display, the front and back sound balance display, the reproduction signal level display, and the like.

Although the liquid crystal display plate is used in the above-mentioned embodiment, the display body is not limited to the liquid crystal display plate and a display such as a fluorescent display tube may be used.

EFFECTS OF THE INVENTION The present invention has the above-described configuration, and by arranging the display pattern in a ring shape on the outer peripheral portion of the display plate that has not been conventionally used, a display longer than the lateral width of the device main body can be realized, and a volume display, etc. There is an advantage that the display content of is easy to understand. Further, according to the present invention, the display other than the sound volume can be displayed on the annular display. Further, according to the present invention, a rotation display similar to the rotation operation of the conventional volume adjusting volume is possible,
It is suitable as a volume display.

[Brief description of drawings]

1 to 3 are front views of a controller for a composite audio apparatus according to an embodiment of the present invention, FIG. 4 is a view showing the arrangement of switches of the same, and FIG. 5 is a block diagram of the same. Fig. 6-
FIG. 10 is a diagram showing a display example in the device. 1 ... Device body, 2 ... Power switch, 3 ... Dust cover, 4 ... Eject button, 5 ... Loudness control button,
6 ... time call button, 7 ... attenuator and dimmer control button, 8A ... up button, 8B ... down button, 9 ... radio selection button, 10 ... CD selection button, 11-23 ... function switching Section, 24 …… Display section, 25 …… Adjustment mode switching section, 26 ……
CD changer, 27 …… cassette deck, 28 …… electronic tuner, 29 …… control section, 30 …… operation section, 31 …… display section,
32 …… Driver, 33 …… Switching circuit, 34 …… Electronic potentiometer, 35,36 …… Power amplifier, 37A, 37B, 38A, 38B ……
Speaker, 39 …… Display pattern, 40 …… Key processing means,
41 ... storage means, 42 ... timing control means, 43 ... storage control means, 44 ... device selection control means, 45 ... display control means, 46 ... equipment control means, 47 ... serial interface, 48 ... … Interface, 49… Timer, 50… A / D conversion means.

Claims (1)

[Claims] 1. A display plate arranged on the front surface of an audio equipment main body, and a plurality of light emitting members arranged annularly at a predetermined interval on an outer peripheral portion of the display device, and a volume, a bass range, a treble range, and a left-right balance. Adjustment mode selecting means for selecting an adjustment mode such as front / rear balance and reproduction signal level, adjustment amount setting means for setting an adjustment amount in the adjustment mode selected by the adjustment mode selecting means, and adjustment of the adjustment amount setting means A display device for an in-vehicle audio device, comprising: a display control unit that sequentially turns on or blinks a number of adjacent light emitters according to the quantity in a predetermined direction starting from a predetermined position on the outer peripheral portion of the display plate.