JP2585046Y2 - Display device of AV amplifier - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for an AV amplifier, and more particularly to an AV device having an audio injection function in which an input selector can independently select a video input selector and an audio input selector.
The present invention relates to a display device of an AV amplifier suitable for displaying an input selector of an amplifier.

[0002]

2. Description of the Related Art As a conventional display device of an AV amplifier, for example, as shown in FIG.
And the selection B of the audio input selector are simultaneously displayed on the phosphor of the display device, so that even when only the selection of the audio input selector is changed by the operation of audio injection, the input of the video is changed. The selector selection was still displayed.

[0003]

However, in the display device of the conventional AV amplifier, even when the audio injection function is operated and the selection B of the audio input selector is changed as shown in FIG. Since the selection A of the video input selector is displayed at the same time as the selection B of the audio input selector, there is a drawback that the display area of the display device must be lengthened and enlarged.

[0004] The present invention has been made in view of the above points, and aims to solve the conventional disadvantages and clearly show that when the audio injection function was operated, the function was operated. Provided is a display device for an AV amplifier which is displayed and displays only the content selected by the audio input selector when the content selected by the audio input selector is switched to the audio only input source. There.

[0005]

FIG. 1 is a functional block diagram of the present invention, and the display device of the AV amplifier of the present invention comprises:
An AV having an audio injection function capable of independently selecting a video input selector and an audio input selector of an input selector, and a display device for displaying the selected content of the input selector.
In the amplifier, a light emitting diode for displaying ON / OFF of the audio injection function, and an audio injection for displaying only the content selected by the audio input selector on the display device when the audio injection is turned on under the control of the microcomputer. And display means.

[0006]

The operation of the present invention will be described with reference to FIG. According to the present invention, an AV amplifier having an audio injection function capable of independently selecting a video input selector and an audio input selector of an input selector, and a display device for displaying the selected content of the input selector. A light emitting diode for displaying ON / OFF of the audio injection function, and an audio injection display for displaying only the content selected by the audio input selector on the display device when the audio injection is turned on under the control of the microcomputer. Since the display device is provided with the means, the shape of the display device can be reduced.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a display device for an AV amplifier according to the present invention will be described with reference to FIGS.

FIG. 1 is a functional block diagram of the present invention, FIG. 2 is a block diagram of a hardware configuration of the present invention, FIG. 3 is a diagram showing a display example showing the contents of an audio input selector on a display device of the present invention, FIG. 4 is a diagram showing the contents of input selectors for video and audio on a video monitor, and FIG. 5 is a flowchart.

In the figure, 1 is an input selector for switching the input source of video and audio, 2 is a key for inputting an instruction for selecting and switching the input selector of video and audio to the microcomputer, 3 is a Dolby circuit for audio, and a digital signal processor circuit 4, a level control circuit for audio output signals, a microcomputer 5 for controlling the apparatus 3, a video monitor 6 for displaying a video signal selected by a video input selector as an image, a video monitor 7, Is an audio signal input terminal, 8 is a video signal input terminal,
9 is a speaker for outputting an audio signal of each channel, 10 is a display device, and 11 is an audio injection ON / OF.
It is a light emitting diode of F display.

The microcomputer 5 comprises a central processing unit for performing data arithmetic processing, a ROM for storing a program to be executed, a RAM for storing data, and an input / output port. The control signals of the sound field control circuit 3, the level adjustment circuit 4, the display device 10, the light emitting diode 11 and the input selector 1 are connected to the input port, and the output port of the microcomputer 5.

As a block configuration, a video and audio input selector 1 selects and switches signals from an audio signal input terminal 7 and a video signal input terminal 8 according to a control signal from a microcomputer 1 and switches an audio signal to a sound field control circuit. The video signal is sent to the video monitor 6, and the audio signal output from the sound field control circuit 3 is output to the speaker 9 via the level adjustment circuit 4.

An instruction to select the input selector 1 is made by operating the key 2, and the selection instruction signal is input to the microcomputer 5, and the selected content of the input selector 1 is displayed on the display device 10 and the video monitor 6. Output as a signal.

When the audio injection function is turned on by operating the key 2, the light emitting diode 11 for displaying the audio injection ON / OFF in the display device 10 is displayed.
Is lit, and the sound field control circuit 3 and the level adjustment circuit 4 are similarly controlled by the microcomputer 5 by operating the key 2.

Next, the operation of this apparatus will be described with reference to the flowchart of FIG.

When the apparatus starts operation, it is checked whether or not an audio injection key input operation has been performed (step S1). If an operation has been performed, whether or not the key operation turns on the audio injection function is determined. Is checked (step S2).

If the operation in step S2 is an ON operation of the audio injection function, the light emitting diode 11 for displaying the audio injection ON / OFF is turned on (step S4).

The audio input of the video at that time is displayed on the display device 10 as an audio input name (step S5), and is input to the sound field control circuit 3 as an audio signal (step S6).

Next, it is checked whether or not the switching operation of the input selector 1 has been performed by operating the key 1 (step S7). If the operation is performed, only the audio is selected by operating the key 2 without changing the video input. (Step S8), and if the input selector 1 is not switched, the flow proceeds to step S8.
Return to 1.

Then, the input name of the voice by operating the key 2 is displayed on the display device 10 (step S9), and the flow returns to step S1.

If the operation of the audio injection function is not an ON operation in step S2, the flow turns off the light emitting diode 11 of the audio injection ON / OFF display (step S10), and then the display device
Display the input name of the image on the screen 10 (step S1
1).

Then, the input selector 1 is switched so that the audio input receives the audio input signal of the same video as the video input (step S12), and the flow returns to step S1.

If the operation of the audio injection key is not performed by the key 2 in step S1, the input selector 1 is switched to the input selected by the key 2 for both video and audio (step S13). The name is displayed (step S14), and the flow returns to step S1.

In the description of the flowchart, the timing of the input display on the video monitor 6 is omitted, but both the video and audio input displays at that time are always displayed on the display of the video monitor 6 as shown in FIG. It has become.

As described above, the display device of the AV amplifier of the present invention has an audio injection function that can independently select the video input selector and the audio input selector of the input selector, and the selection contents of the input selector. In an AV amplifier having a display device for displaying, the light emitting diode for displaying ON / OFF of the audio injection function, and only the contents selected by the audio input selector when the audio injection is turned on under the control of the microcomputer. Is provided on the display device with audio injection display means.

[0025]

Advantages of the Invention According to the display device of the AV amplifier according to the present invention, since the above-described configuration is employed, the following effects can be obtained.

By selecting only the audio input display when the audio injection function is operated as the selection of the input selector to be displayed on the display device, the display space of the display device can be reduced and the space and cost can be reduced. is there.

Moreover, the present invention has the features that it can be implemented only by software and is easy to implement.

[Brief description of the drawings]

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

FIG. 2 is a block diagram of a hardware configuration showing an embodiment of the present invention.

FIG. 3 is a diagram showing a display example of the contents of an input selector of a voice of the present invention.

FIG. 4 is a diagram showing contents of input selectors for video and audio on a video monitor.

FIG. 5 is a flowchart showing a flow of the operation of the present invention.

FIG. 6 is a diagram showing a display example of input selector contents showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Input selector 2 Key 3 Sound field control circuit 4 Level adjustment circuit 5 Microcomputer 6 Video monitor 7 Audio signal input terminal 8 Video signal input terminal 9 Speaker 10 Display device 11 Light emitting diode

Claims (1)

(57) [Scope of request for utility model registration] 1. An AV amplifier having an audio injection function capable of independently selecting a video input selector and an audio input selector of an input selector, and a display device for displaying the selected content of the input selector. A light emitting diode for displaying ON / OFF of the audio injection function, and an audio injection display means for displaying only the content selected by the audio input selector on the display device when the audio injection is turned on under the control of the microcomputer. And a display device for the AV amplifier.