JP2682163B2 - Image recording device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image recording device such as a video floppy recorder.

2. Description of the Related Art In recent years, a video floppy recorder that records a still image on a 2-inch floppy disk (hereinafter referred to as a video floppy) has been commercialized instead of a camera using a film, and in the future, an electronic still camera or the like will be available. It is expected to produce a variety of products.

Hereinafter, the image recording apparatus as described above will be described with reference to the drawings.

FIG. 6 is a block diagram of a video floppy recording device as an example of a device for recording an image. In FIG. 6, 1 is a video input terminal, 2 is a recording processing circuit for performing signal processing of a video signal input to the video input terminal 1, 3 is a recording amplifier, 4 is a recording head, and 5 is a video floppy.

The video floppy 5 has 50 circular concentric tracks from the outside to the inside, and a video signal (still image) of one field is recorded on each track. The video signal recording modes include "field recording" and "frame recording". When recording in the field, one per recording is used.
The video signal of the field is recorded on one track, and in the case of frame recording, the video signal of one frame is recorded on two adjacent tracks for each one field. Therefore, if all are "field recording", 50 field images, and if all are "frame recording"
25 frame images are recorded on one video floppy.

When recording a video signal on the video floppy 5, the video signal input from the input terminal 1 is processed by the recording processing circuit 2, amplified by the recording amplifier 3, and recorded on the video floppy 5 by the recording head 4. Will be recorded.

However, in the case of recording with the above-mentioned conventional configuration,
You need as many tracks as there are screens to record. Therefore, in the case of a video floppy, "field recording" can only record up to 50 screens.

For example, for applications such as recording a golf swing and checking a form, the number of tracks is required for the number of forms although the resolution is not so required.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide an excellent image recording apparatus for recording 50 or more screens on a video floppy.

Means for Solving the Problems In order to achieve the above object, the image recording apparatus of the present invention,
A recording medium having a plurality of image recording tracks, a plurality of image input means, a selection means for selecting one input from the plurality of image input means, and an information reduction means for reducing and reducing the image information obtained from the selection means. A multi-screen composed of an image memory having a storage capacity of at least one field for storing a plurality of reduced images reduced by the information reducing means and a plurality of reduced images read from the image memory, and a track on a recording medium. And recording means for recording.

Operation The present invention has the above-described configuration, and it is possible to record a plurality of images on one track in advance as a multi-screen. Therefore, it is possible to record more than 50 screens on a video floppy.

Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of a video floppy recording apparatus according to the first embodiment of the present invention, FIG. 2 is a block diagram showing an example of a memory circuit, and FIG. 3 shows an example of a multi-screen for recording on a track. It is a figure. In FIG. 1, circuits that operate in the same manner as in FIG. 6 are given the same reference numerals.

In FIG. 1, 1 is a video input terminal, 2 is a recording processing circuit for performing signal processing of a video signal input to the video input terminal 1, 3 is a recording amplifier, 4 is a recording head, and 5 is a video floppy as a recording medium. Is.

In the present embodiment, the recording processing circuit 2, the recording amplifier 3, and the recording head 4 constitute recording means for recording a signal on a track on the recording medium 5. The above is the same as the conventional example, and the description thereof is omitted.

Reference numeral 10 denotes a memory circuit, and as shown in FIG. 2, an A / D converter 10a for converting an analog signal into a digital signal, and 1
Image memory 10 that stores digital signals for fields
b, a memory control circuit 10c for controlling the address of the image memory 10b, and D for converting a digital signal into an analog signal.
It is composed of the / A converter 10d. 11 is a switch for creating a multi-screen, and when creating a multi-screen, the memory circuit
Select 10 outputs.

The memory circuit 10 receives the video signal input to the video input terminal 1. The input analog signal is converted into a digital signal by the A / D converter 10a. After that, the converted digital signal is stored in the memory control circuit 10c.
It is written in the address of the image memory 10b designated by. At this time, for example, by slowing the addressing speed as compared with the A / D conversion speed, it is possible to thin digital signals and write them in the image memory 10b.
After all writing is completed, a digital signal is read from the address of the image memory 10b designated by the memory control circuit 10c, converted into an analog signal by the D / A converter 10d, and the multi-screen creation switch 11 is set. The street
It is output to the recording processing circuit 2.

Below, the recording modes in this embodiment are all set to "field recording", and as an example, the operation of creating 4-screen recording will be described.

The analog video signal input to the video input terminal 1 is input to the memory circuit 10. The input analog signal is converted into a digital signal by the A / D converter 10a, and the converted digital signal is stored in the memory control circuit 10c.
It is written in the address of the image memory 10b designated by. At this time, in order to record four screens in the image memory 10b having a capacity of one field for one field, the digital signal for one screen is reduced to 1/4. This is realized by setting the addressing speed to 1/4 as compared with the A / D conversion speed as described above, and the digital signals for four screens can be thinned out and written in the image memory 10b for one field. It will be possible.

After that, the other three screens are sequentially displayed on the image memory 10b in the same manner.
When the four screens have been written, the digital signal is read from the address of the image memory 10b designated by the memory control circuit 10c, and D
It is converted into an analog signal by the / A converter 10d. At this time, the four screens are multi-screens as shown in FIG. 3, for example.

After that, the data is output to the recording processing circuit 2 through the multi-screen creation switch 11. The recording processing circuit 2 performs signal processing, the recording amplifier 3 amplifies the signal, and the recording head 4 records the signal on one track on the video floppy 5.

As described above, according to the present embodiment, the video signal of one field on one screen is decimated to 1/4 field to record four screens on one track of the video floppy capable of recording the video signal for one field. It is possible to record up to 200 screens on a video floppy.

 Next, a second embodiment of the present invention will be described.

The second embodiment not only solves the conventional problems,
An object of the present invention is to provide an image recording apparatus capable of recording a plurality of images of different scenes at almost the same time.

FIG. 4 is a block diagram of a video floppy recording apparatus according to the second embodiment of the present invention. In FIG. 4, circuits that operate in the same manner as in FIGS. 1 and 6 are assigned the same reference numerals and detailed explanations thereof are omitted.

Reference numeral 2 is a recording processing circuit for performing signal processing of an input video signal, 3 is a recording amplifier, 4 is a recording head, and 5 is a video floppy which is a recording medium. In the present embodiment, the recording processing circuit 2, the recording amplifier 3, and the recording head 4 constitute recording means for recording a signal on a track on a recording medium.

Reference numeral 10 denotes a memory circuit, which converts an analog signal into a digital signal as shown in FIG. 2 as in the first embodiment.
An A / D converter 10a, an image memory 10b for storing a digital signal for one field, a memory control circuit 10c for controlling an address of the image memory 10b, and a D / A converter for converting a digital signal into an analog signal. Composed of 10d.

21 is camera 1, 22 is camera 2, 23 is camera 3, 24 is camera 4
It is.

An input changeover switch 25 selects, for example, an output from the cameras 1 to 4 for each field and outputs it to the memory circuit 10.

 The operation will be described below with reference to FIG.

Four kinds of images of the cameras 1 to 4 are input to the input changeover switch 25.

First, the input changeover switch 25 selects the output of the camera 1. When the input selector switch 25 selects the output of the camera 1, the video signal output by the camera 1 is input to the memory circuit 10. The input video signal is A / D
The converted digital signal is converted by the converter 10a, and the converted digital signal is written to the address of the image memory 10b designated by the memory control circuit 10c. At this time, similarly to the first embodiment, the digital signal is reduced to 1/4 in order to record, for example, four screens. This is A / D
This is realized by reducing the addressing speed to 1/4 of the conversion speed, and it becomes possible to write digital signals for four screens in the image memory 10b for one screen. In this way, the image of the camera 1 is written in the image memory 10b.

Next, the input changeover switch 25 selects the output of the camera 2, and the video signal output by the camera 2 is input to the memory circuit 10. The video signal input in the same way is A / D
The converted digital signal is converted by the converter 10a, and the converted digital signal is written to the address of the image memory 10b designated by the memory control circuit 10c.

The same is done for camera 3 and camera 4, 1
Four screens of the cameras 1 to 4 are written in the image memory 10b for the field.

After the writing is completed, the digital signal is read from the address of the image memory 10b designated by the memory control circuit 10c and converted into an analog signal by the D / A converter 10d. At this time, for example, a multi-screen as shown in FIG. 5 is output to the recording processing circuit 2.

The recording processing circuit 2 performs signal processing, the recording amplifier 3 amplifies the signal, and the recording head 4 records the signal on one track on the video floppy disk.

As described above, by recording four screens, it is possible to record up to 200 screens on the video floppy and also record a plurality of images of different scenes at substantially the same time.

Although information is thinned out when writing to the image memory in the first and second embodiments, the amount of information may be reduced by performing processing such as taking an arithmetic mean.

Although the multi-screen is a 4-split screen, it may be a 9-split screen or a 25-split screen.

Further, although the recording medium is a magnetic disk, if a magnetic tape is used, for example, for a monitoring time-lapse VTR, a long recording time can be achieved.

Particularly, in the second embodiment, it is possible to record the situation of several places on the same tape, and it is very effective because it is easy to deal with each situation in terms of time.

As is apparent from the above embodiment, the present invention makes it possible to record 50 or more screens on a video floppy disk by recording image information from a plurality of image inputting means into one screen and recording it on one track. It will be possible. As a result, even if a plurality of video floppies have been required until now, it is possible to record on one video floppy.

Also, because this method is format compliant,
Even a recording / playing machine that cannot record multi-screens can be played back without any trouble.

[Brief description of the drawings]

FIG. 1 is a block diagram showing the configuration of a video floppy recording / reproducing apparatus according to the first embodiment of the present invention, FIG. 2 is a block diagram showing an example of a memory circuit, and FIG. 3 is an example of a multi-screen in the same embodiment. FIG. 4 is a block diagram showing the configuration of the video floppy recording / reproducing apparatus in the second embodiment, FIG. 5 is a view showing an example of the multi-screen in the same embodiment, and FIG. 6 is a video in the conventional example. It is a block diagram showing a configuration of a floppy recording device. 1 ... input terminal, 2 ... recording processing circuit, 3 ... recording amplifier, 4 ... recording head, 5 ... video floppy, 10 ... memory circuit, 10a ... A / D converter, 10b ... image Memory, 10c …… Memory control circuit, 10d …… D / A converter, 11 …… Multi-screen creation switch, 21,22,23,24 …… Camera, 25 …… Input selector switch.

Claims (1)

(57) [Claims] 1. A recording medium having a plurality of image recording tracks, a plurality of image input means, a selection means for selecting one input from the plurality of image input means, and image information obtained from the selection means is reduced. And an image memory having a storage capacity of at least one field for storing a plurality of reduced images reduced by the information reducing unit, and a plurality of reduced images read from the image memory. And an image recording device for recording a multi-screen on a track on the recording medium.