JPH06253222A - Television monitor - Google Patents

Abstract

PURPOSE:To provide a television monitor in which a video input and an audio input are optionally switched by providing plural video inputs and plural audio inputs to the monitor. CONSTITUTION:The television monitor provided with an audio amplifier circuit 3 driving a speaker 4 and a television tuner 8 is provided with a video input changeover switch 6 and an audio input changeover switch 7 by which plural video inputs ch1-ch3 and plural audio inputs ch1-ch3 are selected independently through the selection of the user. The switching of the changeover switches 6, 7 is controlled through a switch control circuit 5 by the selection of the user. Thus, it is possible that the video of television relay broadcast is observed by selecting the video input ch1 and a CD is reproduced and music is listened to by selecting the audio input ch2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television monitor provided with a plurality of video inputs and a plurality of audio inputs and capable of arbitrarily switching the video and audio inputs.

[0002]

2. Description of the Related Art Currently, compact discs (hereinafter referred to as CD
Say. ) To a laser disk (hereinafter referred to as LD)
A so-called multi-disc player (hereinafter, referred to as MDP) capable of reproducing a plurality of discs has become widespread. An apparatus having a set of a TV monitor including a reproduction signal input section for monitoring the CD and LD, a tuner for receiving a normal TV broadcast, and an audio amplifier is commercially available.

Using such a device, the user
Various modes such as LD reproduction, CD reproduction, and ordinary TV broadcast reception are possible. By the way, the television monitor is normally provided with a plurality of video inputs and audio inputs, and is provided with a video input / audio input selection switch and a switch control circuit for that purpose. However, in these selection switches, the video input switch and the audio input switch are switched in association with each channel.

For example, a television monitor capable of inputting 3 channels will be described as an example. In FIG. 1, this television monitor includes a video monitor circuit 1 such as a drive circuit and a video monitor 2 such as a display cathode ray tube, an audio amplifier circuit 3, and a speaker 4.
Are either built-in or connected separately. Further, a video input ch1, a video input ch2, and a video input 3ch that form a three-channel video input, and an audio input ch1, an audio input ch2, and an audio input ch3 that are selected in conjunction with these video inputs are attached.

For the video input channel and the audio input channel, the user selects a selection switch with a remote controller or the like, so that the switch control circuit 5 causes the video input changeover switch 6 and the audio input channel to be selected based on the selected channel. The same signal is supplied from the switch control circuit 5 to the changeover switch 7,
The video input changeover switch 6 and the audio input changeover switch 7 are controlled so as to be interlocked with each other. That is, when the video input ch1 is selected, the channel of the audio input ch1 is automatically switched in conjunction with the selection.

Therefore, in the case of a television monitor provided with such a selection switch, when the video input channel 1 is selected, the audio input channel 1 is also selected in conjunction, and when the LD is reproduced using this channel, it is recorded in this LD. The video and audio present will be monitored on the TV monitor.

Furthermore, when playing a CD with a player dedicated to MDP or CD in such a set, for example, when playing a CD through an audio input channel 2, a speaker 4 is provided through an audio amplification circuit 3 of a television monitor. The sound is played. At this time, normally, the screen of the video monitor 2 is devised so that only green or black colors are reproduced.

Furthermore, when a normal TV broadcast is received using a TV monitor having a built-in TV tuner 8, the user operates a selection switch to, for example, video input ch3 and audio input ch3.
Is selected to receive a normal TV broadcast.

As described above, when reproducing video and audio on a conventional multi-input television monitor, selection of video and audio inputs is interlocked. Therefore, an audio device such as a CD player is attached to such a television monitor. When connected and played back, the video monitor 2 is essentially wasted without making any contribution.

When receiving a normal television broadcast and watching a marathon broadcast, for example, there are many users who need video but not relay audio. In such a case, the audio is muted or the volume is turned on. Although it is also squeezed, even if you try to listen to music by turning off the relay sound while watching the image of the marathon relay and listening to music by playing other audio, for example, the switching specifications in which the video and audio are linked to the user Freedom doesn't work.

[0011]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and provides a television monitor capable of independently selecting a video input channel and an audio input channel to monitor video and audio. In point.

[0012]

According to the present invention, in a television monitor having a built-in audio amplifier circuit for driving a speaker and a television tuner, a video input selector switch for switching a plurality of video inputs and an audio input for switching a plurality of audio inputs. A video signal input switch and a switch control circuit for supplying a control signal for switching the video input and the audio input independently or in conjunction with each other to the video input selection switch and the audio input selection switch. Or you can select and monitor the audio source.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram for explaining a television monitor of the present invention in which a user can arbitrarily select a video input channel and an audio input channel. In the present invention, in FIG. 1, the switch control circuit 5 controls so that the video input changeover switch 6 and the audio input changeover switch 7 can be independently changed by the user's selection.
By independently controlling the switching, it is possible to arbitrarily select the combination of the video input channel and the audio input channel.

When the video input and the audio input are independently selected, a separate control signal is supplied from the switch control circuit 5 to the video input changeover switch 6 and the audio input changeover switch 7 to select an arbitrary video input channel or audio input. It suffices to set so that ch can be selected.

In many cases where the user selects an input, the combination of the video input channel and the audio input channel is determined as in the conventional case. Therefore, the switch control circuit can be controlled so that both switches 6 and 7 can be interlocked or controlled independently. 5 is preferable.

As the input video and audio sources, the MDP reproduction signal, the CD player reproduction signal, and the television broadcast have been described, but it is freely selectable by the user that another source, for example, a signal reproduced by a VTR can be input. Needless to say, it can be set to.

[0017]

According to the present invention, since the source selection switch of the television monitor having a plurality of video inputs and audio inputs is released so that the source can be independently selected, the user can input the video input and the audio input. Can be freely selected. For example, when playing a compact disc (CD) on a multi-disc player to listen to music, it is possible to interrupt the video input with a desired image and watch it. The selection range of will be expanded.

[Brief description of drawings]

FIG. 1 is a block diagram for explaining an embodiment of the present invention.

[Explanation of symbols]

 1 Video monitor circuit 2 Video monitor 3 Audio amplifier circuit 4 Speaker 5 Switch control circuit 6 Video input selector switch 7 Audio input selector switch 8 TV tuner

Claims (3)

[Claims] 1. In a television monitor having an audio amplifier circuit for driving a speaker, a video input selector switch for switching a plurality of video inputs, an audio input selector switch for switching a plurality of audio inputs, and the video input and the audio input. A television monitor, comprising: a switch control circuit that supplies a control signal that is independently switched to the video input selection switch and the audio input selection switch. 2. A television monitor having a built-in audio amplifier circuit for driving a speaker and a television tuner,
A video input selector switch for switching a plurality of video inputs, an audio input selector switch for switching a plurality of audio inputs, and a control signal for independently switching the video input and the audio input to the video input selector switch and the audio input selector switch. A television monitor comprising: a switch control circuit for supplying. 3. The television monitor according to claim 1, wherein the video input changeover switch and the audio input changeover switch are changed over in an interlocking or independent manner.