JP3163604B2 - Video signal recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to, for example, MUSE / NT
The present invention relates to a video signal recording device suitable for recording an output signal of an SC converter.

[0002]

2. Description of the Related Art A MUSE / NTSC converter converts a video signal having video information compressed in the horizontal direction (hereinafter referred to as a wide screen signal) on the assumption that the video signal is expanded in the horizontal direction in a television having a wide aspect ratio. Output.

[0003]

In order to record the above-mentioned wide-screen signal on a recording medium, it is necessary to record the wide-screen signal so that it is not a normal video signal but a wide-screen signal.

[0004] The present invention has been made in view of such circumstances, and when recording a wide screen signal on a recording medium, a video signal recording apparatus capable of recording a wide screen signal so that it can be identified as a wide screen signal. The purpose is to provide.

[0005]

The video signal recording apparatus according to the first aspect of the present invention is designed such that a video signal is compressed in the horizontal direction on the assumption that the video signal is expanded in the horizontal direction in a television having a wide aspect ratio. Switching means for switching between wide screen signals having video information, and switching means.
Linked, switching means switches to wide screen signal
Indicates that the signal is a wide screen signal.
Output means for outputting the identification signal, and output by the output means.
Switching of the wide identification signal
The video signal is synthesized with the wide screen signal
Recording means for recording on the body .

[0006] a video signal recording apparatus according to claim 2, through
A normal video signal and a high-definition television
NTSC or PAL wide aspect ratio TV
Assuming that it is stretched horizontally in the
Switching for switching the converter output signal for converting the movies <br/> image signal of a wide screen signal having a video information compressed in the direction
Interlocking with the switching means and the switching means,
When switching to the converter output signal,
Outputs a wide identification signal indicating that the output signal is from the inverter.
Output means, and the wide sense output by the output means.
Another signal is converted by the switching means.
Data on the recording medium as a video signal
Recording means for performing the operation.

[0007] a video signal recording apparatus according to claim 3, passing
Switching means for switching between a normal video signal and an output signal of a wide video camera having video information compressed in the horizontal direction on the assumption that the video signal is expanded horizontally in a wide aspect ratio television ;
Interlocks with the output signal of the video camera
The video camera's output signal when
Output means for outputting a wide identification signal indicating that the
And the wide identification signal output by the output means
Output signal of the video camera switched by the switching means
Means for synthesizing a video signal and recording it as a video signal on a recording medium
And characterized in that:

[0008]

According to the video signal recording apparatus of the present invention, a normal video signal and a television signal having a wide aspect ratio are provided.
Water assuming that it is stretched horizontally
Wide screen signal with video information compressed in the horizontal direction
Switch to the wide screen signal.
The wide identification signal to indicate that it is a wide screen signal.
Signal is output and its wide identification signal is
Is recorded on the recording medium as a video signal synthesized with the video signal, so that the recording signal can be identified as a wide screen signal,
It can be handled separately from normal video signals.

According to the video signal recording apparatus of the second aspect, a normal video signal and a video signal of a high-definition television system are used.
Converts image signals to NTSC or PAL wide aspect ratio text
Assuming horizontal extension in revision
Wide screen with video information compressed in the horizontal direction
The output signal of the converter that converts the
Is switched to the output signal of the converter
When the output signal of the converter
Another signal is output and the wide identification signal is
Is recorded on the recording medium as a video signal synthesized with the output signal of the above, so that the recording signal can be identified as the output signal of the converter, that is, a wide screen signal, and can be handled separately from a normal video signal.

[0010] The video signal recording device having the structure of claim 3 is a communication device.
For normal video signals and wide aspect ratio televisions
In the horizontal direction, assuming that the
Video camera with wide compressed video information
The output signal of the camera is switched, and the output signal of the video camera is
Video camera output when it is switched to
A wide identification signal indicating that the signal is
The wide identification signal is combined with the output signal of the video camera.
And because it is recorded on the recording medium as a video signal, recording signal can identify that an output signal or a wide screen signal of a video camera, can be handled as distinct from normal video signal.

[0011]

FIG. 1 shows the configuration of an embodiment of a video signal recording apparatus according to the present invention. This example illustrates the present invention by using MUSE /
This is an example in which the present invention is applied to a video tape recorder (hereinafter, referred to as a VTR) having a built-in NTSC converter.
The D signal is added to the wide screen signal. MUS
The E / NTSC converter 2 receives the MUSE signal,
This is converted into an NTSC video signal and a wide screen signal is output. Here, the wide screen signal will be described with reference to FIG.

FIG. 2 shows a wide screen signal having video information compressed in the horizontal direction on the assumption that it is expanded in the horizontal direction in a television having a wide aspect ratio of 16: 9, and an aspect ratio of 4: 3. And a normal video signal reproduced in the television set shown in FIG. 1 are shown in relation to a wide-screen TV monitor and a normal TV monitor. Two image sources are shown on the left side of FIG. 2, but the image source shown above has a horizontal to vertical length of 4 with a white circle in the center.
The image source shown below is a black rectangle of 3 vs.
The horizontal-to-vertical ratio is a 16: 9 black rectangle having a white circle in the center, and the white circles of both image sources are the same. Since the video information of the above image source can be displayed as it is on a normal TV monitor, it is inserted into a video signal of a normal standard without being compressed in the horizontal direction. The video information of the image source below is 1
Assuming that the image is expanded in the horizontal direction on a wide-screen TV monitor having a wide aspect ratio of 6 to 9, the image is compressed in the horizontal direction and inserted into a video signal of a normal standard. The compression ratio of the video information of the lower image source to the video information of the upper image source is 3/4. The expansion ratio of the compressed video information of the lower image source on a wide-screen TV monitor having a 16: 9 wide aspect ratio is 4/3.

Returning to FIG. 1, the wide screen signal output from the MUSE / NTSC converter 2 is supplied to the input terminal 4a of the switch 4. A normal video signal is supplied to the other input terminal 4b of the switch 4. Switch 4
Is configured to operate in conjunction with the switch 8. When the switch 4 connects the input terminal 4a, the switch 8 connects the input terminal 8a, and the switch 4
When the switch 8 connects the input terminal 4b, the switch 8 connects the input terminal 8b. A wide ID signal indicating a wide screen signal is supplied from a wide ID signal generator 6 to an input terminal 8 a of the switch 8. No signal is supplied to the input terminal 8b of the switch 8.

The switches 4 and 8 are controlled to be switched by an input selection signal indicating whether the user has selected a wide screen signal or a normal video signal. When the input selection signal indicates the wide screen signal selection, When the input terminals 4a and 8a of the switches 4 and 8 are connected and the input selection signal indicates the normal video signal selection, the input terminals 4b and 8b of the switches 4 and 8 are connected.

On the output side of the switches 4 and 8, there is provided a mixer 10 for mixing the output signals of these switches. The output side of the mixer 10 is provided with a video signal recording circuit 12 for separating a color signal and a luminance signal, forming a low-frequency conversion color signal and an FM modulation luminance signal, and the like. The output side of the video signal recording circuit 12 is provided with a recording amplifier 14 for amplifying the output signal of the circuit, and the output side of the recording amplifier 14 is provided with a magnetic head for recording the output signal of the amplifier 14 on a magnetic tape 18. 16 are provided.

In the embodiment of FIG. 1 constructed as described above, when the input selection signal indicates the wide screen signal selection, the input terminals 4a and 8a of the switches 4 and 8 are connected, and the switch 4 A wide screen signal is output, a wide ID signal is output from the switch 8, the two signals are mixed by the mixer 10, and the video signal is recorded by the magnetic head 16 via the video signal recording / recording circuit 12 and the recording amplifier 14. It is recorded on the tape 18. As described above, when the wide screen signal is recorded on the magnetic tape 18, the wide ID signal is recorded on the magnetic tape 18, so that the recording signal can be identified as a wide screen signal, and can be distinguished from a normal video signal. Can be handled separately.

When the input selection signal indicates a normal video signal selection, the input terminals 4b and 8b of the switches 4 and 8 are connected, the switch 4 outputs a normal video signal, and the switch 8 outputs no signal. No video signal is output, and the normal video signal is recorded on the magnetic tape 18 by the magnetic head 16 via the mixer 10, the video signal recording and recording circuit 12, and the recording amplifier 14.

FIG. 3 shows the configuration of another embodiment of the video signal recording apparatus of the present invention. This embodiment is an example in which the present invention is applied to a VTR having a built-in MUSE / NTSC converter, similarly to the embodiment of FIG. 1, but in that a wide ID signal is recorded separately from a wide screen signal. This is different from the first embodiment.

In FIG. 3, a MUSE / NTSC converter 2, switches 4 and 8, and a wide ID signal generator 6 are the same as those in the embodiment of FIG. On the output side of the switch 4, a video recording circuit 12, a recording amplifier 14, and a magnetic head 16 similar to those in FIG. 1 are provided. On the output side of the switch 8, a wide ID signal is
A processing circuit 20 for converting the signal to a signal suitable for recording is provided. On the output side of the processing circuit 12, a recording amplifier 22 for amplifying the output signal of this circuit is provided. A magnetic head 24 for recording the output signal of the amplifier 22 on the magnetic tape 18 is provided.

In the embodiment of FIG. 3 configured as described above, when the input selection signal indicates the wide screen signal selection, the input terminals 4a and 8a of the switches 4 and 8 are connected, and the switch 4 A wide screen signal is output, a wide ID signal is output from the switch 8, and the wide screen signal is recorded on the magnetic tape 18 by the magnetic head 16 via the video signal recording circuit 12 and the recording amplifier 14, and the wide ID signal is output. Is a processing circuit 2
The recording is performed on the magnetic tape 18 by the magnetic head 24 via the recording amplifier 22 and the recording amplifier 22. As described above, when the wide screen signal is recorded on the magnetic tape 18, the wide ID signal is recorded on the magnetic tape 18, so that the recording signal can be identified as a wide screen signal, and can be distinguished from a normal video signal. Can be handled separately.

When the input selection signal indicates normal video signal selection, the input terminals 4b and 8b of the switches 4 and 8 are connected, the switch 4 outputs a normal video signal, and the switch 8 outputs no signal. No video signal is output, and the normal video signal is recorded on the magnetic tape 18 by the magnetic head 16 via the video signal recording / recording circuit 12 and the recording amplifier 14.

FIG. 4 shows the configuration of still another embodiment of the video signal recording apparatus of the present invention. This example illustrates the invention
This is an example in which an output signal of a MUSE / NTSC converter is applied to a VTR input via an external adapter, in which a wide ID signal is added to a wide screen signal. The wide screen signal output from the same MUSE / NTSC converter 2 as in the embodiment of FIG. 1 is supplied to one input terminal 32 of the external adapter 30. A normal video signal is supplied to the other input terminal 40 of the external adapter 30.

The external adapter 30 includes a wide ID signal generator 34 for outputting a wide ID signal indicating a wide screen signal, and a wide screen signal supplied from the input terminal 32 and an output of the wide ID signal generator 34. A mixer 34 for mixing signals, an output signal of the mixer 36 at one input terminal 38a, a normal video signal from a terminal 40 at another input terminal 38b, and an input selection signal indicating wide screen signal selection. A switch 38 that sets the input terminal 38a to a connected state when receiving as a control input, and sets an input terminal 48b to a connected state when receiving an input selection signal indicating normal video signal selection as a control input.
And The output of the switch 38 is the output of the external adapter 30. The output signal of the external adapter 30 is V
The signal is supplied to a video signal recording circuit similar to that of FIG.

In the embodiment of FIG. 4 configured as described above, when the input selection signal indicates the wide screen signal selection, the input terminal 38a side of the switch 38 is connected, and the wide screen signal and the wide ID signal are connected. The mixed signal of
The signal is supplied from the external adapter 30 to the video signal recording circuit of the VTR via the terminal 52, and is recorded on a magnetic tape by a magnetic head via a recording amplifier, as in the embodiment of FIG. As described above, when the wide screen signal is recorded on the magnetic tape, the wide ID signal is recorded on the magnetic tape, so that the recorded signal can be identified as a wide screen signal, and is handled separately from a normal video signal. be able to.

When the input selection signal indicates the selection of the normal video signal, the input terminal 38b of the switch 38 is connected, and the switch 38 outputs a normal video signal. The video signal is supplied to the video signal recording circuit of the VTR through 52.
As in the embodiment of FIG. 1, the data is recorded on a magnetic tape by a magnetic head via a recording amplifier.

FIG. 5 shows the configuration of another embodiment of the video signal recording apparatus of the present invention. This embodiment describes the present invention as MUS
This is an example in which an output signal of an E / NTSC converter is applied to a VTR that is input via an external adapter.
The signal is recorded separately from the wide screen signal. The wide screen signal output from the same MUSE / NTSC converter 2 as in the embodiment of FIG. 1 is supplied to one input terminal 62 of the external adapter 60. A normal video signal is supplied to the other input terminal 66 of the external adapter 60.

The external adapter 30 includes a wide ID signal generator 34 for outputting a wide ID signal indicating a wide screen signal, a switch 64, and a switch 70. A wide screen signal is supplied to one input terminal 64a of the switch 64, and the other input terminal 64b is
Usually, a video signal is supplied. The input terminal 70a of the switch 70 receives the wide ID signal from the wide ID signal generator 68.
A signal is provided. No signal is supplied to the input terminal 70b of the switch 70. Switches 64 and 70
When the switch 64 sets the input terminal 64a to the connected state, the switch 70 sets the input terminal 70a to the connected state, and when the switch 64 sets the input terminal 64b to the connected state, the switch 70
Makes the input terminal 70b side connected.

The outputs of the switches 64 and 70 are supplied to the video signal recording circuit and the wide ID signal processing circuit similar to FIG. 3 through the input terminals 82 and 84 of the VTR 80 as the outputs of the external adapter 60, respectively.

In the embodiment of FIG. 5 constructed as described above, when the input selection signal indicates the wide screen signal selection, the input terminals 64a and 70a of the switches 64 and 70 are connected, and the switch 64 A wide screen signal is output, and a switch 70 outputs a wide ID signal. The wide screen signal is supplied to a video signal recording circuit via an input terminal 82 of the VTR 80, and is recorded on a magnetic tape via a corresponding recording amplifier and a magnetic head. The wide ID signal is supplied to a wide ID signal processing circuit via an input terminal 84 of the VTR 80, and is recorded on a magnetic tape via a corresponding recording amplifier and a magnetic head. As described above, when the wide screen signal is recorded on the magnetic tape, the wide ID signal is recorded on the magnetic tape, so that the recorded signal can be identified as a wide screen signal, and is handled separately from a normal video signal. be able to.

When the input selection signal indicates the normal video signal selection, the input terminals 64b of the switches 64 and 70
And 70b are connected, a normal video signal is output from the switch 64, no signal is output from the switch 70, and the normal video signal is supplied to the video signal recording circuit via the input terminal 82 of the VTR 80. Then, the data is recorded on the magnetic tape via the corresponding recording amplifier and the magnetic head 16.

In the above-described embodiment, the MUSE signal is set to NT
Although the present invention relates to the case of converting to an SC video signal, the present invention is not limited to this.
The same applies to the case of converting to an AL video signal.

Further, the present invention records an output signal of a wide-image-capable video camera having image information compressed in the horizontal direction on a magnetic tape on the assumption that the image is expanded in the horizontal direction in a television having a wide aspect ratio. The same can be applied to the case where the above is performed.

Further, the present invention is not limited to the case where a video signal is recorded on a magnetic tape in a VTR or the like, but is generally applicable to the case where a video signal is recorded on a recording medium.

[0034]

According to the video signal recording apparatus of the first aspect,
Normal video signal and wide aspect ratio television
On the assumption that it is stretched horizontally in
Cuts a wide screen signal with video information compressed in
Change to the wide screen signal,
Outputs wide identification signal indicating wide screen signal
And the wide identification signal is combined with the wide screen signal.
The video signal is recorded on a recording medium.
The recorded signal can be identified as a wide screen signal,
It can be handled separately from video signals.

According to the video signal recording apparatus of the second aspect, the communication
A normal video signal and a high-definition television
NTSC or PAL wide aspect ratio TV
Assuming that it is stretched horizontally in the
Of wide screen signal with video information compressed in one direction
Switch the output signal of the converter that converts the
When the output signal of the converter is switched to
Outputs a wide identification signal indicating that the signal is a data output signal
And the wide identification signal is added to the output signal of the converter.
Recorded on a recording medium as a generated video signal.
And the recording signal is the output signal of the converter,
It can be identified as a surface signal and distinguished from a normal video signal.
Can be handled.

According video signal recording apparatus according to claim 3, usually
Video signals and wide aspect ratio televisions
In the horizontal direction, assuming that the
Wide-screen video camera with compressed video information
Switch the output signal of the video camera.
When the video signal is
Output a wide identification signal indicating that
Video signal obtained by combining another signal with the output signal of a video camera
Recording on the recording medium as
The output signal of the video camera, that is, a wide screen signal
Can be identified and handled separately from normal video signals.
Can be.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of a video signal recording device of the present invention.

FIG. 2 shows a wide screen signal having video information compressed in the horizontal direction on the assumption that the image is expanded in the horizontal direction in a television having an aspect ratio of 16: 9, and a television having an aspect ratio of 4: 3. A normal video signal to be reproduced is compared with a wide screen TV monitor and a normal TV signal.
It is explanatory drawing shown in connection with a monitor.

FIG. 3 is a block diagram showing a configuration of another embodiment of the video signal recording device of the present invention.

FIG. 4 is a block diagram showing a configuration of still another embodiment of the video signal recording device of the present invention.

FIG. 5 is a block diagram showing a configuration of another embodiment of the video signal recording device of the present invention.

[Explanation of symbols]

 2 MUSE / NTSC Converter 4, 8 Switch 6 Wide ID Signal Generator 30 Adapter 32 Wide Screen Signal Input Terminal 34 Wide ID Signal Generator 38 Switch 50 Video Tape Recorder 60 Adapter 64, 70 Switch 68 Wide ID Signal Generator 80 Video Tape Recorder

Claims (3)

(57) [Claims] 1. Switching means for switching between a normal video signal and a wide screen signal having video information compressed in the horizontal direction on the assumption that the video signal is expanded in the horizontal direction in a television having a wide aspect ratio, and said switching. The switching means interlocks with the
When switching to the video screen signal,
Output a wide identification signal indicating that this is a video screen signal
Output means, the wide identification signal output by the output means,
The wide screen switched by the switching unit
Recording which is synthesized into a signal and recorded on a recording medium as a video signal
Means for recording a video signal. 2. An NTSC or PAL wide-aspect video signal between a normal video signal and a high-definition television video signal.
To be stretched horizontally in television
With video information compressed in the horizontal direction on the premise of
Switching means for switching an output signal of a converter for converting a video signal into a video signal of a video screen signal, and interlocking with the switching means, wherein the switching means
When switching to the output signal of the
A wide identification signal that indicates the output signal of the inverter
Output means for outputting, the wide identification signal output by the output means,
The converter switched by the switching means
And output it to a recording medium as a video signal.
Video signal recording apparatus which comprises a that recording means. 3. A switch for switching between a normal video signal and an output signal of a wide video camera having video information compressed in the horizontal direction on the assumption that the video signal is expanded in the horizontal direction in a television having a wide aspect ratio.
Means, and the switching means interlocked with the switching means.
When switching to the output signal of the video camera,
Wide signal indicating the output signal of the video camera
An output unit that outputs another signal, and the wide identification signal output by the output unit,
The video camera switched by the switching means
And output it to a recording medium as a video signal.
A video signal recording device comprising: