JPH05314741A - Display device - Google Patents

Abstract

PURPOSE:To efficiently display many pieces of mode setting information by sharing a display area for both a signal level display and a mode display and properly arranging the area. CONSTITUTION:When a display switching commanding means 13 commands the mode display side, a display device is switched to a mode display state. In such state, a mode information storage means 16 stored with a mode setting state set by a mode setting means 17 takes out mode setting information and a mode display converting means 15 converts the information into data corresponding to a bar graph display state. Since a display switching means 12 is switched to a mode display side with a command from the display switching means 13, a part of bar graph display signal level data of the conversion output is replaced with the mode setting information and the resulting data are outputted to a bar graph display means 11. Consequently, the display device become a mode display state wherein a signal level and the mode setting information are displayed at the same time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a useful display device for efficiently displaying a large number of mode setting information in a multifunction audio device.

[0002]

2. Description of the Related Art In recent years, audio equipment has become multi-functional, and especially commercial equipment has many setting modes, and the scales of the mode setting keys and mode status display devices have increased, making efficiency an important issue. ing. The conventional method of realizing the mode setting key and the mode display device requires a large area in proportion to the increase of the function, which is a big problem especially in the portable device.

An example of the above-mentioned conventional display device will be described below with reference to the display device of a tape recorder as an example with reference to the drawings.

7 and 8 show the display state of a conventional display device. FIG. 7 shows the entire display contents of the fluorescent display tube,
FIG. 8 shows an example of an actual display operation. Figure 7
, 71 and 72 are areas for displaying the signal level in a bar graph, 71 is a bar graph display portion of channel 1,
Reference numeral 72 indicates a bar graph display portion of channel 2, 73 indicates an individual segment of the bar graph display portion,
5, 76 and 77 are mode display areas, 74 is an 8-circuit DIP switch setting state display section, 75 is a display section for displaying the ON / OFF state of the pre-emphasis function, 76,
Reference numeral 77 indicates whether the form of the input signal is analog input or digital input.

In FIG. 8, 81 is an example of signal level display operation of channel 1, 82 is an example of signal level display operation of channel 2, 84 is an 8-circuit DIP switch 11011.
Display state when 100 (ON = 1, OFF = 0) is set, 85 is a display state when the pre-emphasis function is set to ON, and 87 is a display when a digital signal is selected as an input signal It shows the state. As described above, in the conventional method, the area for displaying the signal level and the area for displaying the mode exist independently.

[0006]

However, as shown in FIG.
As is clear from the example of No. 8, according to the conventional method, if the device has more functions and more configurable modes,
In addition to requiring a large number of display areas for display, a large number of control lines for controlling display / non-display of each display segment are required, which causes a problem that the load of the display device and the control circuit is increased. ..

In view of the above conventional problems, the present invention has been made for the purpose of providing a useful display device for efficiently displaying a large number of mode setting information.

[0008]

In order to solve the above-mentioned problems, a display device of the present invention comprises a plurality of channels of bar graph display means for displaying signal levels, and digital data corresponding to bar graph display of audio signal levels. A bar graph display conversion means for converting into a mode, a mode information storage means for storing all mode states of functions corresponding to the display, a mode setting means for changing the mode information in the mode information storage means, and a mode information storage means Mode display conversion means for converting the mode information of the above into data corresponding to the display of the bar graph display means, and the data from the bar graph display conversion means is output to the bar graph display means as it is or the data from the bar graph display conversion means. Part of the data is replaced with data from the mode display conversion means, and whether to output to the bar graph display means is displayed. And it has a display switching means for switching based on a command means.

[0009]

According to the structure of the present invention, the data from the bar graph display conversion means is output to the bar graph display means as it is, or a part of the data from the bar graph display conversion means is replaced with the data from the mode display conversion means. Since it is possible to switch whether to output to the bar graph display means based on the command of the display switching command means, the area for displaying the signal level on the display device and the area for displaying the mode are shared, and a large number of mode setting information can be efficiently stored. It can be displayed as a target.

[0010]

EXAMPLE An example of the display device of the present invention will be described below. FIG. 1 is a functional block diagram of the display device of the present invention. 1, a plurality of channels of bar graph display means 11 for displaying a signal level, a bar graph display converting means 14 for converting an audio signal level into digital data corresponding to a bar graph display, and a device equipped with this display device are provided. A mode information storage means 16 for storing the mode state of the owned function, a mode setting means 17 for changing the mode information in the mode information storage means 16, and a bar graph display of the mode information in the mode information storage means 16. The mode display conversion means 15 for converting the data corresponding to the display of the means 11 and the data from the bar graph display conversion means 14 are output to the bar graph display means 11 as they are or a part of the data from the bar graph display conversion means 14 Is replaced with the data from the mode display conversion means 15 and is output to the bar graph display means 11. It has a display switching means 12 for switching on the basis of a command of the display switching command means 13, shares an area for displaying a signal level on the display device and an area for displaying a mode, and sets the mode display area to a lower level than the signal display area. It is arranged in the level display section.

The present invention operates as follows with the above configuration. First, in the standard use state, the display device is in the signal level display state. Bar graph display conversion means 14
Thus, the audio signal is converted into digital data corresponding to the bar graph display. The display switching means 12 is set on the signal level display side in the standard use state, and the signal level is displayed in a bar graph on the display device.

Next, when the display switching command means 13 commands the mode display side, the display device is switched to the mode display state. In the mode display state, the mode setting means 1
The mode setting information is retrieved from the mode information storage means 16 which stores the mode setting information set in 7, and converted by the mode display converting means 15 into data corresponding to the bar graph display state. This conversion output is switched to the mode display side by the display switching means 12 according to the command from the display switching command means 13 as described above, so that a part of the bar graph display signal level data described in the standard use state is obtained. Is replaced with the mode setting information and is output to the bar graph display means 11. As a result, the display device is in the mode display state in which the signal level and the mode setting information are simultaneously displayed on the bar graph display area.

The above-mentioned signal level display state and mode display state can be arbitrarily switched by a command from the display switching command means 13. Further, in the mode display state, the mode setting state can be displayed as described above, and the mode setting state can be arbitrarily changed by the mode setting means 17 and the mode information storage means 16.

As described above, according to the present invention, since the area for displaying the signal level on the display device and the area for displaying the mode are shared, the increase of the display area can be suppressed in the display of the mode information. At the same time, since the increase in the number of controlled segments in the display device can be reduced, the number of connection terminals of the display device and the number of control output lines of the display control circuit can be reduced, and an efficient display device can be provided. Further, by disposing the mode display area in the low signal level display portion of the signal level display area, the level display function at a practical signal level is hardly deteriorated and the mode setting state can be displayed at the same time.

Next, one embodiment of the display device of the present invention will be described in detail with reference to FIGS.

FIG. 2 shows a specific circuit block diagram of an embodiment of the present invention. 21 is a fluorescent display tube, 22 is a signal processing circuit, 23 is a microcomputer, 24 is a controlled circuit, 25 is an audio circuit, 26 is a mode shift key, 27 is a mode set key, and 28 is a display switching key. As shown in FIG. 4, the fluorescent display tube 21 includes a bar graph display section 41 for channel 1, a bar graph display section 42 for channel 2, an individual segment 43 of the bar graph display section,
Mode display area display 44, signal level value scale display section 45, 8 circuit DIP switch setting status display section 4
6. It has a pre-emphasis display section 47, an analog input display section 48, and a digital input display section 49. FIG. 3 is a basic operation flowchart for a microcomputer,
5 is a diagram showing the operation in the signal level display state, and FIG. 6 is a diagram showing the operation in the mode display state.

The operation of the display device configured as described above will be described below. A comparison between the functional block diagram of FIG. 1 and the specific circuit block diagram of FIG. 2 will be described. The bar graph display means 11 is a fluorescent display tube 21, and the display switching means 12, the bar graph display converting means 14, and the mode display converting means. 15, the mode information storage means 16 is realized by the microcomputer 23 and the signal processing circuit 22, the display change command means 13 is realized by the display change key 28, and the mode setting means 17 is realized by the mode shift key 26 and the mode set key 27.

First, in a normal signal level display operation, the analog signal input to the audio circuit 25 is converted into digital data by the signal processing circuit 22 and delivered to the microcomputer 23. In the microcomputer 23, the digital data delivered from the signal processing circuit 22 is turned on / off in the individual segment of the bar graph display.
Convert to digital data for level display corresponding to F.
Further, the microcomputer 23 outputs a control signal to the fluorescent display tube 21 to display the level of the audio signal.
A specific display example during this operation is as shown in FIG. 5, and the level display 51 of channel 1 and the level display 5 of channel 2 are shown.
2 is displayed on the fluorescent display tube 21.

Next, the operation in the mode display state will be described. A specific display example during this operation is as shown in FIG.
The level display upper part 61 of the channel 1 and the level display upper part 62 of the channel 2 are displayed on the fluorescent display tube 21, and the level display lower part of each channel becomes a mode display area, and the mode setting state of the device is displayed. Is displayed. In this state, the current mode setting state of the device can be confirmed and the mode setting contents can be changed.
A blinking segment 63 indicates that the setting of the mode item of this blinking portion can be changed.

The operation in the mode display state will be specifically described below. RA in the microcomputer 23
The current mode information of the device is stored in M, and ON / O of the individual segment in the lower part of the bar graph display is calculated by calculation.
Convert to digital data for mode display corresponding to FF. When the mode switching state is selected by the display switching key 28, the lower part of the level display digital data is replaced with the mode display digital data and output to the fluorescent display tube 21. The mode shift key 26 and the mode set key 27 are used to change the mode setting contents.

The mode item whose setting can be changed is displayed by blinking the segment to be changed like the blinking segment 63.
In this embodiment, the switch 2 portion of the 8-circuit DIP switch is blinking, and the setting can be changed. This blinking changeable mode item is the microcomputer 23.
By the processing described in (1), each time the mode shift key 26 is operated, it is designed to be sequentially moved and circulated. In the present embodiment, this blinking display indicates that the switches 3, 4, 5, 6, 7, EMP, AN are switched from the switch 2 of the 8-circuit DIP switch.
A, DIG, switch 0 of 8 circuit dip switch,
1 and 2 are sequentially moved, and a cyclic display is performed.

The mode shift key 26 is operated to set the desired mode item to blink, and then the mode set key 27 is used to set the set value. The set value is designed to be switched to the opposite set value by a toggle operation every time the mode set key 27 is operated. However, since the ANA display showing the analog input and the DIG display showing the digital input of this embodiment are in an exclusive relationship with each other, when one of them is set to a certain set value, the other is automatically set to the opposite set value. Operates as set.

By using the above method, it is possible to change the setting of all mode items by using only the mode shift key 26 and the mode set key 27, no matter how many mode items are included.

The flow of the basic operation of the microcomputer 23, which plays a central role in the above concrete circuit block diagram and FIG. 3, will be described with reference to the flowchart of FIG. Regardless of whether the display device is in the signal level display state or the mode display state, first, in step 31, the signal level upper portion is displayed. Then, in process 32, the mode shift key 2
6, the three key input information of the mode set key 27 and the display switching key 28 is read. In the determination 33, it is determined whether the key input information obtained in the process 32 is a signal level display command,
In the case of the signal level display command, the signal level lower part display of the process 34 is performed. If the determination is negative, the current mode setting information is displayed in the lower part of the level display by processing 35. Next, it is determined whether or not a command to change the mode setting contents is issued by the determinations 36 and 38 based on the key input information obtained in the process 32. If the mode shift key 26 is ON, the changeable mode item displayed in blinking is moved to the adjacent mode item by the process 37, and the input mode item is shifted. If the mode set key 27 is ON, the current set value is switched to another set value by a toggle operation in process 39. Naturally, this process 39
Then, the display contents of the fluorescent display tube 21 are switched and the current mode information stored in the RAM of the microcomputer 23 is also changed.

As described above, according to this embodiment, since the area for displaying the signal level on the display device and the area for displaying the mode are shared, the increase of the display area can be suppressed in the display of the mode information. In addition, since the number of controlled segments in the display device can be reduced, it is possible to reduce the number of connection terminals of the display device and the number of output lines of the display control circuit realized by the microcomputer 23, and to provide an efficient display device. it can.

Moreover, since the mode display area is arranged in the low signal level display portion of the signal level display area, the mode display state is displayed at the same time without substantially impairing the level display function at the practical signal level. Get out.
In addition, as for the circuit configuration, most of the parts can be handled by software by a microcomputer, and the cost can be reduced.

[0027]

As described above, according to the present invention, the area for displaying the signal level on the display device and the area for displaying the mode are shared, and the mode display area is arranged in the low level display portion of the signal display area. With this, the mode setting status can be displayed at the same time with almost no deterioration of the level display function, the required display area can be suppressed from increasing, and the number of controlled segments in the display device can be reduced. The number of control output lines of the display control circuit can be reduced, and an efficient display device can be provided.

[Brief description of drawings]

FIG. 1 is a functional block diagram of the present invention.

FIG. 2 is a specific circuit block diagram of an embodiment of the present invention.

FIG. 3 is a basic operation flowchart for a microcomputer according to an embodiment of the present invention.

FIG. 4 is a diagram showing the entire display contents of a fluorescent display tube according to an embodiment of the present invention.

FIG. 5 is a diagram showing an operation in a signal level display state in the embodiment of the present invention.

FIG. 6 is a diagram showing an operation in a mode display state in the embodiment of the present invention.

FIG. 7 is a diagram showing the entire display contents of a fluorescent display tube in a conventional example.

FIG. 8 is a diagram showing an operation in a conventional example.

[Explanation of symbols]

 11 bar graph display means 12 display switching means 13 display switching command means 14 bar graph display converting means 15 mode display converting means 16 mode information storing means 17 mode setting means 21 fluorescent display tube 22 signal processing circuit 23 microcomputer 24 controlled circuit 25 Audio circuit 26 Mode shift key 27 Mode set key 28 Display switching key 41 Channel 1 bar graph display 42 Channel 2 bar graph display 43 Individual bar graph display segment 44 Mode display area display 45 Signal level scale display 46 8 circuit DIP switch setting status display 47 pre-emphasis display 48 analog input display 49 digital input display 51 channel 1 level display 52 channel 2 level display 61 channel 1 Level display upper portion 62 displays the level display upper section 63 flashes segment 64 mode display area of the channel 2

Claims (1)

[Claims] 1. A plurality of channels of bar graph display means for displaying a signal level, a bar graph display conversion means for converting an audio signal level into digital data corresponding to a bar graph display, and all modes of display corresponding functions. Mode information storage means for storing, mode setting means for changing the mode information in the mode information storage means, and mode for converting the mode information in the mode information storage means into data corresponding to the display of the bar graph display means. The data from the display conversion means and the bar graph display conversion means is output to the bar graph display means as it is, or a part of the data from the bar graph display conversion means is replaced with the data from the mode display conversion means and output to the bar graph display means. A display device having display switching means for switching whether or not to perform based on a command from the display switching command means.