JPH03218188A - Magnetic picture recording device and magnetic picture recording/reproducing device utilizing the device - Google Patents

Abstract

PURPOSE:To remove the generation of a trouble such as the delayed appearance of data such as a post recorded title to a moving image at the time of reproducing by recording data after temporarily rewinding a tape by only a required length at the time of post-recording. CONSTITUTION:In the case of additionally recording a still picture, title data, etc., which is executed during the reproducing, the magnetic tape 30 is temporarily rewound by only the recording area of the digital data and then additional recording is started. Namely when a user monitors reproducing moving images and presses an one-shot type switch 45 at the moment of a scene to be post- recorded, a command is sent to a logical circuit 42 and a capstan servo circuit 37 rewinds the tape 30 based upon the command of the circuit 42. The length to be rewound is changed in accordance with the data volume for one cut to be post-recorded. Consequently, the generation of a trouble such as the delayed appearance of additionally recorded information such as a title to a moving picture can be removed and the operation of the device can be improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic brass picture reproduction device (hereinafter referred to as VTR and recorder) K.
In particular, it relates to a device that can record both continuous moving images and frame-by-frame still images or information such as titles or the like using the same device. [Prior Art] In V'l'R, which is called 8mm video, in addition to the normal moving image analog recording area based on the recording track K2 head helical scanning κ on the magnetic tape, there is also a recording area (
(commonly known as) has an overlap recording area. This is formed by winding a rotating head drum K magnetic tape around 220 degrees, and usually an audio PCM signal is recorded thereon. In response to this, there have been proposals to digitally record still images of the same overlap recording area K1 frame (frame or field), for example,
This is stated in Publication No. 5567, etc. Functionally, in addition to the normal video analog reporting function of a camera-integrated VTRIC, it also has the functions of a digital electronic still camera. As previously mentioned, the boundary between the video analog recording area and the lap recording area is short (about 3 horizontal cycles in the video).
f) There is a margin area to ensure device compatibility, and short data can be recorded. Since both the overlap recording area and the margin area are located on the magnetic tape at different positions from the video recording area, after-recording is possible, allowing you to add desired information without adversely affecting the quality of the video. can. [Il11 to be solved by the invention] In the above-mentioned prior art K, moving images recorded in analog form,
Although the general recording method and hardware configuration for digitally recording one-cut still images is described, the recording method during dubbing is not described in detail. For example, when digitally recording one cut of iiigR in the lap recording area K, the K1
It may take nearly G seconds, but of course it takes κ the same amount of time to play K1 cut #jJflI. If you record in analog and record a mourning video or title that explains the 9-motion #J image κ, the motion ImIIl
Approximately 10 seconds after the start of 2, the κ dubbing information appears, which is strange and undesirable in terms of usability.

In view of the above-mentioned problems, it is an object of the present invention to provide a method for recording overlapping recording areas and video analog recording areas, and an easy-to-use method during playback for simultaneous recording and dubbing. .

[Means to solve the problem]

In order to achieve the above object, in the present invention, during regeneration K
When performing static + mrl or additional recording of title data, etc., the magnetic tape is once rewound by the recording area of the digital data, and then additional recording is started. In addition, although this is a matter different from the above purpose, whether or not it is possible to add the information recorded in the overlap area K at the time of playback, or whether there is no need to do so. The video is recorded with an ID code that allows it to be identified, and during playback, depending on the determination result, information on the overlap area is added to the video IIK for a specified period of time, or output in place of this, and The video output terminal is equipped with an output circuit that switches between outputting and not outputting at all, as required. [Function] By rewinding the magnetic tape and then starting recording during additional recording, the inconvenience that additional recording information such as a title appears later than the moving lmgI is solved, and usability is improved. By determining the above ID code, only the necessary information from the overlap part is added and superimposed in the κ video during playback.
Or, instead of this, κ appears. Also, general still images that cannot be superimposed will not be erroneously superimposed. [Examples] Examples of the present invention will be described below with reference to the drawings. FIG. 1 is a circuit block diagram of the recording side circuit of a camera-integrated VTR according to the present invention. Here, it is assumed that the VTR section complies with the 8 mm video standard.

First, let's talk about the camera gK. Here, as described below, Y color difference conversion and color encoding processing are performed by digital processing as an example, but this is just an example, and analog processing may also be used. The light passing through the lens barrel 1 forms an optical image on the solid-state image sensor 2K. As is well known, nine sensors are lined up in the vertical direction of the light-receiving surface, corresponding to the number of scanning lines (μ525 in NTSC), K, and in the horizontal direction, corresponding to the number of pixels per line, K. The output is input to the AD converter 3 and becomes a digital video signal. Here, as an example, the sampling frequency is 4f. .

455 4.5 (f,. is the color subcarrier frequency 2 x 286” 795
45MHz), and the number of quantization bits is 8 bits.
The output of the AD converter 3 is given to the encoder circuit 4, and Y
Processing such as color difference conversion and dichromatic subcarrier modulation is performed using digital processing κ. Thereafter, one end κ of the DA converter 5 and the switch 6 is applied.

The output of the DAip device 5 is an analog video signal that complies with standards such as NTSC, and is the output of the brightness signal recording circuit 7 of the VTR section.
, is given to the chromaticity signal recording circuit 8. Although not shown, it is also provided to the viewfinder to display the image being captured.

The aforementioned switch 6 is normally connected in the direction shown in the figure while the camera section is capturing a moving image, and supplies the output of the encoder circuit 4 to the frame (or field) memory 9. Also connected to the frame (or field) memory 9 are logic signals generated by a one-shot switch 10 mounted on the exterior of the device. This specifies the moment at which the user records a still image (overlap recording). After pressing the switch 10, the data of the first frame (or field) is stored in the memory 9 as still image information. As an example, when reading out data, it is assumed that data is read out at 2fB (f!I is the horizontal synchronization frequency of 4500 Hz, and lga = 1a734KHz), which is the same as the sampling frequency of the audio signal, which will be described later.
Note that when capturing still image data using the above method, there is no problem if only one field is captured, but if one frame is captured, blurring of moving objects due to interlaced scanning becomes a problem. In that case, the sensor output of the solid-state imaging element is
It is sufficient to use a method in which one frame is extracted by simultaneously ejecting two vertically adjacent lines κ, and then reconstructed as two interlaced field signals.

It is also convenient to apply the output of the switch 10 to the above-mentioned viewfinder and display the moment when a still image is taken using text or a lamp.

The audio signal collected by the microphone 11 is amplified by the microphone amplifier 12 and is applied to the noise reduction circuit 13 of the VTR. Next, let's talk about the KVTR section. First, the audio signal applied to the noise reduction circuit 13 is given a nonlinear Takagi emphasis characteristic, and then is applied to the audio FM recording circuits 1 and 4 and the AD converter 15. In the former case, the signal is converted into an audio FM modulated signal having a carrier frequency around 1.5 MHz, and then applied to one end of the adder 16. In the latter case, for example, the sampling frequency is 2f! I becomes a digital audio signal with a quantization bit count of 8 bits (actually, it is quantized with 10 bits and then compressed with 8 bits}K), and is applied to one end of the switch 17. The luminance signal component of the analog video signal output from the DAf converter 5 is converted into a shoulder luminance FMf tone signal using a K carrier frequency around 5 MHz, for example, in the luminance signal recording circuit 7, and the chromaticity signal component is output to the chromaticity signal recording circuit 7. 8 to set the subcarrier frequency to 47.2
5f, and are low-frequency converted in the vicinity, and each is added to one end of the adder 16. The pilot signal generation circuit 18 generates & for each field based on the synchronization signal separated by the luminance signal recording circuit 7 and an attack pulse indicating the rotational phase of the rotary head drum, which will be described later.
5f, , 7.5f! I, I Il5flI, 9
．． A pilot signal whose frequency is cyclically switched in the order of 5fII is generated and applied to the remaining end of the adder 16. This is a signal for tracking control during playback.

The four signals frequency-multiplexed by the adder 16 are added to one end K of the switch 19.

Switch 17 is then switched depending on the position of bistable switch 20 which can be switched from outside the device.

The switch 20 is used by the user to select whether to record an audio PCM signal or digitally record a still image in the overlap recording section. Of course, in a device designed to perform overlap recording only of the latter, the AD converter 15 and switches 17 and 21 are removed, and the output of the memory 9 is connected to the data addition circuit 22. The switch 21 is switched when overlapping recording (dubbing) the contents of the title ROM 23, as will be described later, and is normally connected in the direction shown in the figure. The data addition circuit 22 adds address information to the data, an ID code (a code for determining whether audio is a still image, etc.), and a parity code for error correction during playback, and then the data is stored in the vanofer memory 24.

When starting out, the time axis is compressed so that it becomes an intermittent signal that can be recorded in the overlap area. Thereafter, the 8-bit parallel data becomes serial data in a parallel-to-serial conversion circuit 25, and after adding a CRC code for error detection during reproduction, a PCM modulation circuit 26 converts it into a transmission line code called a biphase mark. Further, after adding the pilot signal in an adder 27, the pilot signal is applied to the remaining end of the switch 19. The output of the switch 19 is recorded on a magnetic tape 30 via a recording amplifier 28 by a recording head 29 (actually two). As is well known, a rotating drum (not shown) K is mounted on the recording head 29. This is rotated by a drum motor 31, and the tack pulse generator 3 indicates the rotation and rotation phase.
The rotation is controlled by the result of phase comparison between the output of No. 2 and the synchronization signal (vertical only) described above in the drum servo circuit 35. Therefore, the output of the tack pulse generator 52 is waveform-shaped by the switch pulse generator 34, and when the previous switch 19 is switched and driven, the output of the previous adder 16 is transferred to the main track of the magnetic tape 50. The output of the previous adder 27 can be recorded on the overlapping recording track extending therefrom.

Note that the magnetic tape 30 travels as the capstan motor 350 rotates. In this case, the rotation phase of the capstan motor 35 is controlled by the capstan servo circuit 37 based on the output pulse of the display pQ56, and as a result, the C motor runs at a constant speed determined by the VTR standard. Although we have already explained how to encode signals for overlap recording in accordance with the current 8-bit audio PCM standard, this is not a necessary condition. In the future, there is a possibility that something with an even higher number of bits will appear, so it may be possible to adapt to that. In any case, it is more convenient to allow the circuits below the data addition circuit 22 to be shared.

FIG. 2 is a plan view of the vicinity of the rotary head drum 38. The arrows in the figure indicate the running direction of the rotating head drum 38 and the magnetic tape 30. The recording head 29 is 29A, 2 as described above.
It consists of two pieces of 9B and is installed 180 degrees apart from each other. The magnetic tape 50 is attached to the rotating head drum 38 at 210°.
The guide rollers 39A and 39B position the belt so that it is wound (actually 220 to 230 degrees including the margin). The recording pattern on this ninth magnetic tape is shown in Figure 3. In other words, the continuous moving image (and audio FM signal and pyronote signal) during the approximately 180° winding period marked 4OA in the figure is digitally recorded in the remaining approximately 30° overlapping recording section K1 cut marked 40Q in the figure. A still image gI (and pilot signal) is recorded. Note that 40B in the figure is the above-mentioned margin period of about 5H. The above 180° period is 1 track, 1 field, A1, A2+" in the figure.
1sB2'... are recorded in the order of K. On the other hand, if one frame of still images were to be recorded during the overlap period, a considerable number of tracks would be required. Current 8-bit PCM
According to the standard, the amount of data is 8400 bits/track. 1 frame A is 4 fso, 5 aMb with 8-bit quantization
(in case of composite quantization), it takes about 450 tracks, that is, about 15 seconds. Therefore, if the contents of the A11A2 fields are recorded as one frame, the data will be continuously recorded on a large number of tracks as shown in the figure. If the frame memory 9K in Figure 1:
If you start recording immediately after storing 17 frames, the data will be recorded starting from the extension of the B2 field, as shown in the figure. Next, we will explain the operation when performing follow-up recording (hereinafter referred to as dubbing) in the K overlap recording section during playback. Even during dubbing, the minimum objective can be achieved by giving dubbing instructions and recording data on the magnetic tape from the fI-diagonal interval. However, there are problems when considering usability.

It takes a considerable amount of time (Z5 seconds in the example above) to digitally record the still image of the Vc1 cut. Naturally, it takes the same amount of time to play back one cut of data during playback. Therefore, the image recorded during the overlap period appears with a delay of, for example, 7.5 seconds with respect to the moving image recorded on the main track K for the 180° winding. As mentioned above, when shooting κ motion ImgI and playing back the overlapping region κ image as a still image, the main track's motion Im image is supplied to the monitor TV, and the overlapping track's still image is There are relatively few problems because the image can be used for example by supplying it to a video printer.

However, in the case of dubbing, the situation is different. Information for dubbing, whether video or audio, usually modifies or explains the video of the main track. There is a problem if you search for the position where you want to dub information on a monitor TV while playing a video, and then dub the data from there. When playing back the video later, explanatory information will appear with a delay of, for example, 7.5 seconds after the video appears. This is especially inconvenient when the dubbing information is a title. In order to solve this problem, the present invention first rewinds the magnetic tape by the necessary amount during dubbing. The operation during dubbing will be described based on Figure 1. Here, we will discuss the case of dubbing video information in the overlapping section.

That is, it is assumed that the switch 17 is connected in the illustrated direction κ in accordance with the switch 20.

First, using the three-point switch 41, the user instructs which of the video signals from the camera (for example, capturing title characters, pictures, etc.), the external video signal from the input terminal 43, or the data in the title ROM 23 is to be dubbing. The command of this switch 41 is input to a logic circuit 42. Here, a switch switching command is generated. When dubbing is performed using a video signal from a camera, both switches 6 and 21 are connected in the direction shown. External v! When using the kgI1 signal, switch 6 is switched in the opposite direction to that shown, and input terminal 4
The signal from the ADf converter 44 has a sampling frequency of 4f, for example. , the data has a quantization bit number of 8 bits,
Given to memory 9. When using ready-made data in the title ROM 25 (such as general-purpose title characters and backgrounds for entrance ceremonies, Hinamatsuri, etc.), the switch 21 is switched in the opposite direction as shown. Of course, not all of the three inputs are necessary; for example, a system without the title ROM 25 can be considered. Next, the user monitors the reproduced moving image, and at the moment when the desired scene is reached, the user presses the 17-type switch 45 and sends a command to the logic circuit 42. Then, the capstan servo circuit 37 operates on the magnetic tape 3 based on the logic circuit 420 command K.
Rewind 0. The amount of rewinding varies depending on the amount of data k for one cut to be dubbed. For example, if the amount of data is the same as the still image, go back about 450 tracks and title R.
If the amount of data is small, such as OM, the return amount may be smaller than this. Furthermore, if dubbing is to be performed in a margin area of about 3H shown by 40B in FIG. 3, the amount of rewinding must be further increased because the data recording capacity per track is small. The point is, as shown in Figure 4 K, during dubbing, the dubbing data (a1 la2 in the figure) is recorded near the position of the dubbing instruction indicated by the arrow in the figure (the position of the moving ImgI track where the user gave the dubbing instruction). so that it ends.

With this arrangement, there will be no inconvenience such as the explanatory title characters being significantly delayed from the moving image.

Note that during dubbing, only the overlap portion or the above-mentioned margin area is recorded, so the recording amplifier 2B turns the recording current output ON according to the instruction from the logic circuit 42 (dubbing mode) and the timing given by the switch pulse generator 34. /OFF control is required.

Furthermore, it is convenient to use the ID code added by the data addition circuit 22 so that it can be determined during reproduction whether or not the data can be displayed on the screen by being superimposed on the moving image.

As a modification of FIG. 1, the embodiment shown in FIG. 5 will be described.

Here, the difference from FIG. 1 is that there is no title ROM 25, switches 21, 41, input terminal 45, kD converter 44,
Instead, a digital interface input terminal 46 is provided.

That is, when a title ROM, an AD converter for an external video signal, etc. are made into an adapter or a card as external parts of the device, and this is connected to the input terminal 46, the switch 6
are connected in the opposite direction as shown. Of course, the audio signal AD converter 15 may also be an external component. Furthermore, the number of pins of the input terminal 46 may be increased, and the types of external components may be provided as information, and the ID given by the data addition circuit 22 may be changed as described above. In addition, both Fig. 1 and Fig. 5 (external parts) show the title ROM23.
The number of bits of the output does not necessarily have to be 8 bits.

If the information is only black and white, it is possible to use about 2 bits. Next, one embodiment of the reproduction side circuit of the present invention will be described with reference to the circuit block diagram of FIG. On the playback side, the operation and configuration of the device differ depending on how moving images and still images are output, but here we have shown an example in which each has separate output terminals. One possible use case is that while the user is watching a video on a TV monitor, a still image is printed out from a printer connected to the still image output terminal. In Fig. 6, structural elements that are the same as those in Figs. 1 and 5 are given the same numbers. A signal read out from the magnetic tape 30 by a reproducing head 29 (which may be the same as the recording head 29 in FIG. 1) is amplified by a reproducing amplifier 47 and then applied to a switch 48. At this time, the rotary head drum (not shown) on which the reproducing head 29 is mounted is rotated by the drum motor 51, and the output of the tack pulse generator 32 indicating the rotational phase is given to the drum servo circuit 33, and the drum servo circuit 35 [ The drum motor 51 is rotated at a constant speed (30 rps). The output of the tack pulse generator 52 is waveform-shaped by the switch pulse generator 34, and the previous switch 48 is switched and driven.
In the figure, the continuous video @ (and audio FM signal and pilot signal) with the winding period of about 180° described above is sent to the terminal on the a side of the figure, and the signal (audio Obtain a PCM signal, one-cut digital still image, title data, and pilot signal). The signal at terminal a is given to an audio FM reproduction (demodulation) circuit 49, a chromaticity signal reproduction circuit 52, a luminance signal reproduction circuit 55, and a pilot signal reproduction circuit 55. The pilot signal reproducing circuit 55 returns an error signal to the capstan servo circuit 57 based on the beat components of the pilot signals of the current track and the adjacent track so that the K reproducing head 29 traces the track in the same way as during recording. .

The audio FM reproducing circuit 49 extracts an audio FM signal with a carrier frequency of approximately 1.5 MHz and demodulates the audio FM signal, and a noise reduction circuit 50 (which has the opposite characteristics to 13 in FIG. 1) provides a nonlinear Takagi attenuation characteristic. The S/N is improved and the original audio signal is applied to one end of the switch 51. 47.25f in the chromaticity signal reproducing circuit 52! The chromaticity signal having a subcarrier around l is returned to the original band (Hfa) while removing the phase variation component and is added to one end of the adder 54. The luminance signal reproducing circuit 53 demodulates the luminance FMf modulated signal to the original signal and applies it to the remaining end of the adder 54. The luminance and chromaticity signals added by the adder 54 are outputted to the output terminal 71 via a character addition circuit 66 and a composition circuit 74 whose operations will be described later, and the video #JgI is displayed on an external television. At the same time, you can also monitor it in the viewfinder. The signal at the b side terminal of the switch 48 is compensated for the frequency characteristics caused by the tape head system by a reproduction equalizer 56, sampled by the data strobe circuit 57, and then converted into a paceband signal by a PCI demodulator 58. back to digital signals. Next, an error detection circuit 59 detects a data error caused by K, such as a dropout in the tape system, based on the CRC code added during recording, and then a serial/parallel converter 60 converts the data into parallel (for example, 8 bits) data. The data is returned and written into the buffer memory 61.

When reading, data is read out using a clock having a frequency of 2fI1, for example, and data errors are corrected in an error correction port 62 based on a command from an error detection circuit 59. Also, at the time of K.
Determine whether the reproduced signal is an audio signal from the attached ID, and determine the starting point of the data if it is not an audio signal from the address.
Get end point information.

The output of the error correction circuit 62 is sent to the DA converter 65, and the frame (
A DA converter 65 is provided to the memory 9 (or field) for converting the PCM recorded audio signal back to an analog signal, and its output is applied to the remaining end of the rabbit switch 51. This switch 51 is the previous ID
When the ID indicates an audio signal, this PCM-recorded audio signal is output to the output terminal 70 with priority. (This is because the sound quality is better than FM recording.) Also, when the ID indicates a still image or title, etc., an FM recorded audio signal is output. Still image or title data of the memory 9Kfl1 cut is stored, and this becomes an analog signal via the DA converter 64 and is output to the output terminal 72 and supplied to an external printer. Of course, it is also possible to digitally interface with the printer without going through the DAf converter 64. Output terminal 75f1 This is an output terminal for sending a print command to the printer. When still images or title information recorded discontinuously in units of ffiK 1 cut at arbitrary positions on the magnetic tape are stored in the memory 9 for 1 cut, the previous address (
and ID), the first logic circuit 68 generates and outputs a print command. In this case, there is no point in printing out the title or the like, so if this is set as an ID that can be distinguished as described above, unnecessary printing can be prevented.

The printer takes on the order of K1 minute to print one color image. If the next still image information appears before printing is completed and the memory 9 is rewritten, normal printing will no longer be possible. Therefore, a print end signal from the printer side is inputted from the input terminal 63 and is applied to the memory 9 and the second logic circuit 69. Data writing to the memory 9 is prohibited until this indicates the end of printing. Also, since some still images may not be able to be printed with this alone, the second logic circuit 69 is configured to handle the case where the next still image data appears while a print command has been issued and printing has not finished. sends a command to the capstan servo circuit 37 and the preceding character addition circuit 66. The former rewinds the magnetic tape 30 to just before the start point of the next still image data based on this command K, and stops running until the current print is completed. The latter is based on this Directive, and the RO
Text is superimposed on the informational movement Iiiiig1 of M67 to inform the user that the tape will stop running until the end of printing, so as not to give a strange impression.

According to the embodiment shown in FIG. 6, while the user is viewing a moving image, he or she can obtain prints of all important still images. Furthermore, the output of the DA converter 64 is also provided to the aforementioned synthesis circuit 74K. Here, the addition or switching of the video signal and the information from the overlapping section is performed in response to the command κ from the tenth logic circuit 68, and is output to the output terminal 71. As mentioned above, the information recorded in overlap K is recorded simultaneously with the video! Whether it is an efi still image, an after-recorded image, or something that can be added to a video image, such as simple white text or a title, or a moving image.
If the ID has been set so that it can be determined whether the content should be converted and output (such as a title with a landscape in the background), the synthesis The operation of the circuit 74 can be set as appropriate. In this example, if it is a still image recorded at the same time as a moving image, only the moving image needs to be output to the output terminal 74. If the title is dubbing and can be added, this will be added to the video for a few seconds and output. If it cannot be added, it is switched for several seconds and only the output of the DA converter 64 is output.

As mentioned above, the recording pattern on the recording side is different between simultaneous recording and dubbing, so the title etc. of the dubbing will be the same as the video IJ1! The inconvenience that appears late compared to κ has been resolved.

As mentioned above, the configuration of the κ playback side is not limited to that shown in Figure 6.
Various transformations are possible. However, no matter how it is configured, the same effect of the present invention can be obtained.

〔Effect of the invention〕

As described above, in the present invention, data is recorded after rewinding the tape by the necessary amount during dubbing, so that data such as titles that have been dubbed are delayed with respect to the moving image during playback. It can eliminate the inconvenience that may appear, and it does not give a strange impression to the user.
It can contribute to improved usability. Video played again. This has the effect of adding or replacing post-recorded information to the image as appropriate and outputting it.

[Brief explanation of drawings]

Figures 1, 5 and 6 are circuit block diagrams showing one embodiment of the present invention, Figure 2 is a plan view of the area around the rotating head drum, and Figures 5 and 4 are diagrams showing a case in which the present invention is used. FIG. 2 is a plan view showing a recording pattern on a magnetic tape. 9...Memory 6, 10, 17, 20, 21, 41.45...Switch 23...Title ROM 42.68.69...Logic circuit 37...Cagstan servo circuit 74... -Composition circuit 66...Character addition circuit.

Claims (1)

[Claims] 1. It has a rotating head helical type scanning mechanism, records continuous moving images and accompanying audio signals in a first area on the recording medium, and records continuous moving images and accompanying audio signals in a second area. A device for digitally recording still images of cuts (frames or fields) or title data, etc., which includes a circuit for recording the moving image, a circuit for recording an audio signal accompanying the moving image, and a circuit for recording the moving image while recording the moving image. When recording the still image in the second area, the still image is recorded while the moving image recording operation is continued, and the still image or title data is recorded while the recording medium is being played back. When performing additional recording (after-recording) in the second area, the recording medium operates to start additional recording after rewinding the recording medium by the area required for recording all recorded data after commanding additional recording. A magnetic recording device comprising a medium running control circuit and a circuit for recording the still image, title data, etc. 2. The first area and the second area border each other, and when additionally recording title data, a request is made to additionally record the title data at the boundary between the first area and the second area. Item 1
The magnetic recording device described in . 3. ROM (Re
The magnetic recording device according to claim 1, further comprising: adOnlyMemory. 4. The magnetic recording device according to claim 3, wherein either an AD converter that converts the still image into a digital signal or the ROM can be installed. 5. It has a rotating two-head helical scanning mechanism that records and reproduces continuous moving images and accompanying audio signals in the first area on the recording medium, and one cut (frame or frame) in the second area. A device for digitally recording and reproducing still images or title data, etc. of field), comprising: a circuit for recording and reproducing the moving images, an output terminal for reproducing and outputting the moving images, and a circuit for recording and reproducing the still images or title data, etc. , an output terminal for reproducing and outputting a still image, and whether the signal reproduced from the second area can be superimposed on a still image, title data, or a moving image reproduced from the first area. and a circuit for determining whether the signal from the second region is not outputted at all or is superimposed by adding a prescribed time to the signal at the output terminal of the moving image, based on the determination result of the discriminating circuit. 1. A magnetic recording and reproducing apparatus characterized by comprising: a circuit that performs a switching output operation of outputting the output for a specified period of time or instead of outputting the output for a specified period of time. 6. The apparatus according to claim 1 or claim 5, wherein the standard for magnetic recording is the 8 mm video standard.