JPS6069862A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To record and reproduce immediately tracks for data signal recording and reproducing with a fixed-type magnetic head exclusive for data signal recording and reproducing and to reduce the quantity of slide between the magnetic head and a recording medium by providing this magnetic head besides a magnetic head for video signal recording and reproducing. CONSTITUTION:A magnetic head 4 for recording and reproducing is provided in accordance with a track 2 for video signal recording and reproducing and is moved by a motor 15. A magnetic head 5 only for recording and reproducing is fixed in accordance with a track 3 for data signal recording and reproducing. The head 5 or 4 is operated by a changeover switch 22. When switches 11, 21, and 22 are switched to record a data signal of an input terminal 6, it is unnecessary to move heads 4 and 5 because the magnetic head 5 is used for recording, and the data signal is recorded immediately on the track 3, and further, the quantity of slide is reduced because the magnetic head 4 is not moved at this time. Since a video signal of an input terminal 7 is recorded on the track 2 by the magnetic head 4, the extent of movement of the magnetic head 4 is short. In such a way, the reproducing is also executed.

Description

[Detailed Description of the Invention] The invention of 11 I) 1 Field>,- is the invention of ll11-transforming magnetic recording 24 b! Magnetic recording medium device using L-tree: j'1, Magnetic record 2J for recording video signal and data <1hj on magnetic medium of -1, 4-ruchino regarding Yamao device. .

Description of Conventional Art 1 Electronic still cameras and the like are examples of recording and reproducing devices that use a rotating magnetic medium, such as a magnetic disc, to record still images. In this case, it is common to provide multiple tracks on one magnetic disk and record video on each track using FM, and also record information such as automatic playback and processing of the recorded video. Consideration is being given to setting up a separate track for this purpose.

If these video and data signals are recorded using a single head, they must be moved between both trunks, which increases the waiting time. Data signal trunk and force 1. The disadvantage of the method of moving the magnetic head while keeping it in contact with the magnetic recording medium is that the sliding between the magnetic head and the medium increases. has.

<One Object of the Invention> Therefore, an object of the present invention is to record a single data signal. When recording the data signal, it takes less than 9 hours to record the data signal, and immediately record the data signal on the trunk for recording and reproducing.
1. To provide a magnetic recording device that can reduce the amount of sliding between a magnetic head and a magnetic recording medium in the case of a method in which the magnetic head is brought into contact with the magnetic recording medium and moved. .

<Structure and operation of the invention> In order to achieve the ten objects, the structure and operation of the present invention provide a rotating magnetic recording medium having a plurality of trunks for recording and reproducing video signals and one track for recording and reproducing data signals. In a magnetic recording and reproducing apparatus using a magnetic recording and reproducing apparatus, by adding a fixed type magnetic head for recording and reproducing data signals, which does not move between tracks, to the 7F pond for the magnetic field for recording and reproducing video signals. The magnetic head for recording and reproducing can perform recording and reproducing of the trunk for recording data signals on the river 111, ν, and the sliding movement between the magnetic head and the magnetic recording medium can be reduced. It has characteristics in points.

<Embodiments> Hereinafter, the present invention will be explained in detail with reference to the illustrated embodiments.

FIG. 1 shows a recording track pattern of a magnetic disk 1 used in an embodiment of the present invention, and the magnetic disk 1 includes a plurality of video signal recording/reproducing tracks 2 and one data signal recording/reproducing track 3. and is provided.

As shown in FIG. 2, a magnetic head 4 for recording and reproducing video signals is provided at a position of the magnetic disk 1 corresponding to the trunk 2 for recording and reproducing video signals, and a magnetic head 4 for recording and reproducing video signals is provided at a position corresponding to the trunk 2 for recording and reproducing video signals. The component 4 is moved to the video signal recording/reproducing track 2 by a track moving motor 15 controlled by the output of the trunk selection circuit 14.

Further, a magnetic head 5 exclusively for data signal recording 11i is fixed at a position 1d of the magnetic disk 1 corresponding to the trunk 3 for data signal recording RLI raw. Either the data signal recording/reproducing magnetic head 5 or the video signal recording/reproducing magnetic head 4 is operated by a video/data exclusive head changeover switch 22 to be set to IF.

In addition, in FIG. 2, 6 is the recording data signal input terminal -f
, 7 is a 4-bit image signal input terminal, 8 is a coding circuit, 1
] is 1.゛M processing circuit, 10 is a recording amplifier, 11 is a video/data changeover switch, 12 is a magnetic disc rotation motor, 13 is a servo circuit, 16 is a playback amplifier, 17 is a limiter, and 18 is an FM video demodulation Vessel, 1! ] is 1.''M data demodulator, 20 is FuIN' demodulator, 21 is recorder, AlIJ
'Live cut switch, 23 is reproduction video fR small output A'I
r-12.1 is a reproduced data signal output terminal.

In the magnetic recording 111 production device described in 1-1, now switch the video/data changeover switch 11 to the data side coating circuit 8, switch the recording/reproduction changeover switch 21 to the recording side, and switch to the video/data 11 use. Data signal recording output 1, IJ magnetic switch 1S! 'When switching to the + side and setting the data signal fJ to 13,

In addition to this, the data signal input manually from the recording data signal input terminal 6 is first converted into a coating circuit (NR:/,
, hi FM, etc. This signal is
? After being frequency modulated by the M processing circuit 9 and further amplified by the recording amplifier 10, the data is transferred to the recording/playback switch, the inch 2J, and the video/data dedicated head selector switch 22 to the data No. 3 recording 1 ear audio dedicated head 5. The signal is added to the data signal recording/reproducing trunk 3'2 of the magnetic disk 1.

On top of this, when recording data signals, it is done with a fixed magnetic head 5 exclusively used for recording and reproducing data signals.
There is no need to move the magnetic heads 4 and 5, and the data signal can be instantly recorded on the trunk 3 for recording and reproducing data signals. Since the magnetic head does not move, the amount of sliding between the magnetic head 4 and the magnetic circle &] is reduced compared to the conventional case.

Next, video/description 1. It is assumed that the recording of the video signal is performed by switching the to/from switch 22 to the normal side for the magnetic field for recording and reproducing video signals.

At this time, the video signal input from the recorded video signal input terminal 7 is passed through the video data changeover switch 11°FM processing circuit 9, the recording amplifier 10, the recording/playback changeover switch 21J (and the video/data dedicated head changeover switch 22).
Video signal record of magnetic disk 1: 1rui raw track 21
．． Moving video signal recording and reproducing magnetic hen 1 1 1 1
The video signal is recorded on track 2 for recording and reproducing the video signal.

In this way, the video signal recording j1'' cow magnetic head 4 is
Since only the video signal recording and reproducing track 2'' is moved, the amount of movement is small, and the amount of sliding between the magnetic spatula IS・t and the magnetic disc 1 is the same as when using a single magnetic disk. It will be less than that.

In addition, when playing data number 11, please note f+
When the A11i raw selector switch 21 is switched to the 111 raw side, and the 7F selector switch 22 for video/data 1.1/ is switched to the data transmitter/data transmitter/Yamao 1,1/magnetic head 5 side, the magnetic circle Data recording i1i raw track on board 1; Through the demodulator 20, the data signal is regenerated.

At this time, since the magnetic nodes 4 and 5 do not move, there is no waiting time for the magnetic head to move, and the data signal is immediately reproduced, and the magnetic nodes 4 and 5 and the magnetic disk 1 do not move. No more sliding.

When reproducing a video signal, when the video/data dedicated head changeover switch 22 is switched to the video signal recording/reproducing magnetic head 4 side, the video signal recording/reproducing is started from the video signal recording/reproducing trunk 2 of the magnetic disk 1. 4. Magnetic nodule for use. Video data dedicated head selection switch 22. Recording/playback selector switch 21. Reproduction amplifier 16. The video signal is reproduced through the limiter 17 and the FM video demodulator 18.

At this time, the magnetic head 4 for recording and reproducing video signals moves only to the track 2- for recording and reproducing video signals, so the amount of movement and sliding movement 2 are different from the magnetic head 4 of the conventional lij,-.
It will be less than that of .

<Effects of the Invention> As is clear from the explanation in Section 2 below, the magnetic recording/reproducing apparatus of the present invention is configured as described above, so there is no waiting time for recording/reproducing data signals, and data signals can be recorded and reproduced immediately. In the case of a method in which data signal recording/reproducing tracks can be recorded and reproduced and a magnetic head is brought into contact with the magnetic recording medium and moved,
The amount of sliding between the magnetic head and the magnetic recording medium can be reduced.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the pattern of a recording trunk of a magnetic disk used in an embodiment of the present invention, and FIG. 2 is a schematic block diagram C of a recording/reproducing system in an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Magnetic disc, 2... Video signal recording 11 ■ Trunk for live use, G... Trunk for data signal recording and reproduction, 4...
・Video signal recording Magnetic nod for birth, 5...Data signal recording! ',! , Nod to magnetism for +1j raw-11.

Claims (1)

[Claims] (1) Multiple lIs! I! In a magnetic recording/reproducing device using a rotating magnetic recording medium having a trunk for recording and reproducing image signals and one trunk for recording and reproducing data signals, there is Equipped with a magnetic nodule for recording and reproducing fixed data signals that do not move, instant data (i.
This is a magnetic recording device with the 1, +4 feature of being able to play back notes on the trunk.