JP2001136086A - Video device with fm radio receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a video device with FM radio receiver that effectively utilizes a monitor screen in the case of receiving an FM broadcast program so as to utilize the monitor for many purposes. SOLUTION: With a mode changeover switch 20 set to an FM radio mode, changeover switches 14, 15 are thrown to the position of an FM radio receiver and a changeover switch 13 is thrown to the position of a video unit. An audio signal demodulated by an FM audio demodulation circuit 9 is outputted from a loudspeaker 8 via the changeover switches 14, 15 and an audio amplifier circuit 7, and a video signal reproduced by a video section 10 is displayed on the monitor 5 via the changeover switch 13 and a video signal processing circuit 4. Thus, a viewer can enjoy a video image of the video unit while listening to music of the FM broadcast program.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a video device such as a video-integrated television with an FM radio.

[0002]

2. Description of the Related Art In recent years, the functions of AV (Audio Visual) devices have become more complex, and devices having various functions in addition to televisions and videos have been provided. For example, Japanese Patent Laying-Open No. 6-215544 discloses an AV apparatus having the functions of a television, a video, a radio, and a game machine.

As one of such composite type AV devices, there is a video-integrated television with an FM radio. In this device, a television image demodulated from a received radio wave and an image reproduced by a video unit are displayed on a monitor such as a CRT, and sound is output from a speaker. The sound demodulated from the FM broadcast wave is also output from the speaker. For this reason, a changeover switch for switching a circuit according to each operation mode of the television, the video, and the FM radio is provided.

[0004]

However, conventionally,
When the operation mode was set to FM radio, the video changeover switch was grounded to prevent the monitor from accepting video signals, so nothing was displayed on the monitor screen while listening to FM broadcasting, and the channel selection operation was performed. The reception frequency (for example, 88.1 MHz) is changed to OSD (On Screen Di
splay) was displayed, otherwise the screen was black. For this reason, the screen was not effectively used during FM broadcasting, and the monitor could not be used for multiple purposes.

SUMMARY OF THE INVENTION In view of the foregoing, it is an object of the present invention to provide a video apparatus with an FM radio capable of using a monitor for various purposes by effectively using a monitor screen at the time of FM broadcast.

[0006]

In order to solve the above-mentioned problems, the present invention is directed to displaying an image reproduced by a video section on a monitor while an FM radio circuit is outputting audio. It is.

[0007] By doing so, it is possible to simultaneously watch a video image while listening to the FM broadcast.
While displaying images of the sea, tropical fish, scenery, and the like on a monitor with environmental video software, music can be enjoyed by FM broadcasting, and the monitor can be used as a multipurpose display.

The present invention can be applied to a video-integrated television. In this case, a first switch for switching a video displayed on a monitor between a video side and a television side, and an audio output. A second switch for switching between the television side and the FM radio side and a third switch for switching audio output between the video side and the FM radio side are provided. Then, the FM radio circuit outputs sound via the second and third changeover switches switched to the FM radio side, and the video reproduced by the video section via the first changeover switch switched to the video side. May be configured to be displayed on the monitor.

In this case, when the video section is set to the recording mode, if the first changeover switch is switched to the television side, the user can listen to the FM radio broadcast while displaying the television image being recorded on the monitor. be able to.

Further, the switching of the above three changeover switches can be easily performed by control of the microcomputer.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. FIG. 1 is a block diagram showing an example of a video apparatus with an FM radio according to the present invention.
Here, it is configured as a video integrated television. In the figure, reference numeral 1 denotes an antenna for receiving a broadcast wave, 2 a receiving circuit for performing a channel selection operation and the like, 3 a video demodulation circuit for demodulating a video signal from a received television signal, and 4 a switching circuit 13 to be described later. A video signal processing circuit for processing a video signal of a television or video, 5 a CRT monitor for displaying a video based on an output of the video signal processing circuit 4, 6 a TV audio demodulation circuit for demodulating an audio signal from the received television signal, Reference numeral 7 denotes an audio amplifier circuit that amplifies an audio signal, and reference numeral 8 denotes a speaker that outputs audio. 1-8 above
Each block constitutes a television circuit.

Reference numeral 9 denotes an FM audio demodulation circuit for demodulating an audio signal from the FM signal received by the receiving circuit 2. The demodulated audio signal is output from a speaker 8 via an audio amplification circuit 7. Antenna 1, receiving circuit 2, FM sound demodulating circuit 9,
The audio amplifier circuit 7 and the speaker 8 constitute an FM radio circuit.

Reference numeral 10 denotes a VCR (video cassette recorder) constituting a video section, which comprises a video recording / reproducing circuit 11 for recording or reproducing a video, and an audio recording / reproducing circuit 12 for recording or reproducing a voice. Video recording and playback circuit 1
An output of the video demodulation circuit 3 is input to 1 so that a television video can be recorded in a recording mode. The output side of the video recording / playback circuit 11 is provided with a changeover switch 13.
Connected to the video signal processing circuit 4, and displays a video image reproduced by the video recording / reproduction circuit 11 on the monitor 5 in the reproduction mode. The changeover switch 13 is a first changeover switch for switching the image displayed on the monitor 5 between the video side and the television side. The output of the video demodulation circuit 3 is connected to the terminal a on the television side, and the terminal b is connected to the terminal b on the video side. The output of the video recording / playback circuit 11 is connected to the terminal.

On the other hand, a television audio demodulation circuit 6 and an FM audio demodulation circuit 9 are connected to an input side of the audio recording / reproducing circuit 12 via a changeover switch 14, and a changeover switch 15 is connected to an output side. Amplification circuit 7 via
To be connected to The changeover switch 14 is
Second to switch audio output between TV side and FM radio side
The output of the television audio demodulation circuit 6 is connected to the terminal c on the television side, and the output of the FM audio demodulation circuit 9 is connected to the terminal d on the FM radio side. Also,
The changeover switch 15 is a third changeover switch for switching the audio output between the video side and the FM radio side. The output of the audio recording / reproducing circuit 12 is connected to the e side of the video side, and the f terminal of the FM radio side. Is connected to the output of the FM audio demodulation circuit 9 via the changeover switch 14.

Reference numeral 16 denotes a microcomputer constituting a control unit, and as shown by a broken line arrow, a changeover switch 1
3, 14 and 15, and controls the bus 1
The demodulation circuit 18 controls the video demodulation circuit 3, the television audio demodulation circuit 6, and the FM audio demodulation circuit 9 via the demodulation block 18, and controls the VCR 10 via the bus 19.

Reference numeral 20 denotes an operation mode of a television, video, or FM.
This is a mode switch for switching between three modes of the radio. The mode changeover switch 20 is set to the television mode when the power is turned on. Each time the mode switch 20 is pressed, the operation mode changes cyclically, such as television → video → FM radio. The signal from the mode changeover switch 20 is given to the microcomputer 16, and the microcomputer 16 switches the changeover switches 13, 14, and 15 according to this signal.

Next, the operation of the video apparatus with FM radio having the above configuration will be described. When the mode switch 20 is set to the television mode, the switches 13, 14, and 15 are in the state shown in FIG. Accordingly, the television signal received by the receiving circuit 2 is demodulated by the video demodulation circuit 3, and the video signal is supplied to the video signal processing circuit 4 via the terminal a of the changeover switch 13.
Here, the image is processed and displayed on the monitor 5. On the other hand, an audio signal of the received television signal is demodulated by a television audio demodulation circuit 6, and the audio signal is transmitted from the terminal c of the switch 14 to the terminal f of the switch 15 through the terminal f of the switch 15.
And output from the speaker 8 as sound. The above operation is the same as that of the conventional device.

When the mode changeover switch 20 is set to the video mode, the changeover switches 13, 1
4 and 15 are in the state of FIG. That is, the changeover switch 13 switches to the terminal b on the video side, and the changeover switch 1
5 also switches to the e terminal on the video side. Therefore, VC
By setting R10 to the playback mode, of the signals read from a recording medium (not shown) such as a video cassette tape, the video signal is played back by the video recording / playback circuit 11 and is passed through the b terminal of the changeover switch 13. The video signal is supplied to the video signal processing circuit 4, where the video signal is processed and displayed on the monitor 5. The audio signal is reproduced by the audio recording / reproducing circuit 12, supplied to the audio amplifier circuit 7 via the e terminal of the changeover switch 15, and output from the speaker 8 as audio. The above operation is the same as that of the conventional device.

Next, when the mode changeover switch 20 is set to the FM radio mode, the changeover switches 13 and
14 and 15 are in the state of FIG. That is, the changeover switch 14 switches to the d terminal on the FM radio side, and the changeover switch 15 also switches to the f terminal on the FM radio side. Also,
The changeover switch 13 is switched to the terminal b on the video side. Therefore, the FM signal received by the receiving circuit 2 is demodulated into an audio signal by an FM audio demodulation circuit 9, and this audio signal is transmitted from the d terminal of the changeover switch 14 to the audio amplification circuit 7 via the f terminal of the changeover switch 15. And output from the speaker 8 as sound.

On the other hand, when the VCR 10 is set to the reproduction mode, the video signal among the signals read from the video cassette tape is reproduced in the video recording / reproduction circuit 11 and the video signal processing is performed through the terminal b of the changeover switch 13. It is provided to the circuit 4 where the image is processed and the monitor 5
Will be displayed. The changeover switch 15 is connected to the video side (e
Terminal is not switched, the audio signal reproduced by the audio recording / reproducing circuit 12 is not supplied to the audio amplification circuit 7, and no audio is output from the speaker 8. Therefore, only the video is displayed on the monitor 5.

As described above, in the FM radio mode, the FM sound is output from the speaker 8 as in the related art, while the video image reproduced by the VCR 10 is displayed on the monitor 5. Therefore, if the FM broadcast of the music program is selected and the environmental video software is reproduced on the VCR 10, the user can enjoy the music of the FM broadcast as the BGM while watching the images of the sea, tropical fish, scenery, and the like. .

Furthermore, in realizing such a function, the changeover switches 13, 14, and 15 are originally provided, and only these changeover operations need to be controlled by the microcomputer 16, so that no extra parts are required. Can be easily realized on the program of the microcomputer 16 without adding the following.

By the way, in FM radio mode, VC
When the R10 is set to the playback mode, the video image can be viewed together with the FM broadcast as described above. However, when the VCR 10 is set to the recording mode,
It is also possible to watch the TV video being recorded together with the M broadcast. FIG. 4 illustrates this state.
The changeover switches 14 and 15 are at the same position as in FIG. 3, but the changeover switch 13 has been switched to the terminal a on the television side by being set to the recording mode.

Therefore, as in the case of FIG. 3, the FM signal received by the receiving circuit 2 is demodulated into an audio signal by an FM audio demodulation circuit 9, and this audio signal is supplied from the d terminal of the changeover switch 14 to the changeover switch 15 Is supplied to the audio amplifier circuit 7 through the f terminal of the speaker 8 and is output from the speaker 8 as audio. The television signal received by the receiving circuit 2 is demodulated into a video signal by a video demodulation circuit 3, and the video signal is supplied to a video signal processing circuit 4 via a terminal a of a changeover switch 13. The result is displayed on the monitor 5.
Since the changeover switches 14 and 15 are switched to the FM radio side (d terminal, f terminal), the audio signal of the television is not input to the audio amplification circuit 7, and the television audio is not output from the speaker 8. Therefore, also in this case, only the video is displayed on the monitor 5. Thus,
In the case of FIG. 4 as well, it is possible to enjoy FM broadcast music as BGM while displaying video on the monitor 5.

In the above embodiment, the VCR 1
Although the example in which the video unit is constituted by 0 is shown, the video unit may be constituted by a DVD (digital video disc) player instead of the VCR. The monitor 5 is a CRT
The changeover switches 13, 14, and 15 are not limited to mechanical switches, and may be semiconductor switches.

Further, in the above embodiment, the video and the television are integrated, but the present invention can be applied to a case where the video and the television are separate.

[0027]

According to the present invention, a video image can be watched while listening to an FM broadcast, so that a monitor screen at the time of the FM broadcast can be effectively used, and the monitor can be used as a multipurpose display. Becomes possible.

Further, by using existing changeover switches as they are and controlling them with a microcomputer, it is possible to easily realize them by software without adding a new circuit.

[Brief description of the drawings]

FIG. 1 is a block diagram showing an example of a video apparatus with an FM radio according to the present invention, showing a state of a television mode.

FIG. 2 is a block diagram showing a state of the video mode.

FIG. 3 is a block diagram showing a state of the FM radio mode, in which a video unit is set to a reproduction mode.

FIG. 4 is a block diagram showing a state of the FM radio mode, in which a video unit is set to a recording mode.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Antenna 2 Receiving circuit 3 Video demodulation circuit 4 Video signal processing circuit 5 Monitor 6 Television audio demodulation circuit 7 Audio amplification circuit 8 Speaker 9 FM audio demodulation circuit 10 Video cassette recorder (video part) 11 Video recording / reproduction circuit 12 Audio recording / reproduction circuit 13, 14, 15 changeover switch 16 microcomputer 17 bus 18 demodulation block 19 bus 20 mode changeover switch

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 31/00 541 G11B 31/00 541Z

Claims (4)

[Claims] A video section for reproducing a video recorded on a recording medium; a monitor for displaying the reproduced video; and an FM radio circuit for receiving an FM broadcast wave, demodulating the signal, and outputting a sound. A video apparatus with an FM radio, wherein the video reproduced by the video unit is displayed on the monitor while an FM radio circuit is outputting audio. 2. A television broadcast wave is received and demodulated.
A television circuit for displaying an image on the monitor and outputting audio, a first switch for switching the image displayed on the monitor between a video side and a television side, and an audio output between the television side and the FM radio side. A second changeover switch for changing over, and a third changeover switch for changing over the audio output between the video side and the FM radio side, and an FM radio circuit via the second and third changeover switches changed over to the FM radio side 2. The video apparatus with an FM radio according to claim 1, wherein the video apparatus outputs audio and causes the video reproduced on the video section to be displayed on a monitor via the first changeover switch switched to the video side. 3. When a video section is set to a recording mode, a first changeover switch is switched to a television side, and
3. The video apparatus with FM radio according to claim 2, wherein the television image being recorded is displayed on a monitor. 4. The switch according to claim 2, wherein the first to third changeover switches are switched under control of a microcomputer.
A video device with an FM radio according to claim 1.