JPS6059561A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To change the length of a tape between reproducing and recording heads and to adjust synchronization between reproducing and recording data highly accurately by arranging a tape guiding means having a means enabled to move finely in the thickness direction of the tape between reproducing and recording heads. CONSTITUTION:Supposing that the 1st channel (CH) data is delayed by a fixed period as compared to the 2nd CH data when data from the external are recorded at the 2nd CH by a recording head 8 and the 1st and 2nd data are simultaneously reproduced by a reproducing head 9 while reproducing the data recorded in the 1st CH by a reproducing head 3, the tape length between the reproducing head 3 and the recording head 8 is shorter than a set value for a reproduced data delay variable. Therefore, a tape guide strut 5 is moved in the arrow P direction by turning a fine adjusting screw 13 of an adjusting means 6 and opening a slitting part 6b, so that the tape travelling distance between the reproducing head 3 and the recording head 8 is extended.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording/reproducing apparatus having a synchronization adjustment mechanism for reproduced data and recorded data.

Conventional configurations and their problems In recent years, multi-channel magnetic recording and reproducing devices have been widely used to record music for the production of records or me-gic tapes. Recording and reproducing devices are attracting attention. Even when creating a stereo 2CH music source, when recording live music, for example, drums, piano, etc.
Each part, such as vocals, is often recorded separately, and then the final music source is generally produced using a mixer, editing machine, etc.

Multi-channel magnetic recording and reproducing devices used for such purposes can record sound on one channel while playing back on another channel, extract part of one channel and insert it into another part, etc. The synchronization accuracy of the reproduced data on the tape is a fundamentally important factor. Conventional multi-channel magnetic recording and reproducing devices generally use a winding type magnetic head, so it is possible to synchronize the reproduced data and the recorded data by using the recording head and using only the desired channel as the reproducing head. 3t.

Ta. Therefore, the data d recorded on the tape could be recorded in accordance with the linear precision between each channel of the recording head, which was not a practical problem.

(7) However, for devices such as PCM magnetic recording and reproducing devices where there is a time delay between input/output data and data recorded on the tape, conventional methods cannot achieve the intended purpose. , a leading playback head and a following (Ni: recording) head configuration makes it possible to achieve synchronization.Also, the recording density on the tape is increasing, and individual recording Including the fact that data loss adjacent to the data VC has a large effect on the quality of the reproduced signal t1, a significantly higher synchronization accuracy C1 between the reproduced data and the recorded data in the tape is required. Specifically, in order to achieve synchronization during recording as described in example C; This is solved by electrically delaying the raw data by the time until
j'll 4jl-'Lj adjustment is necessary and 41A
It was necessary to add all the circuits for l* and li. History VC Magnetic Recording Mountain/1゛Device I All Time FlightsJ11Shi \Sodo Club's I+? , P 6, etc., it may be necessary to replace one head, but each time the head is replaced, a series of adjustments such as these will give you peace of mind, and the head replacement V at the actual location of use will be avoided. There was a breakaway point.

OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional problems, and provides a magnetic recording/reproducing device that is capable of highly accurate synchronization adjustment of reproduced data and recorded data with a simple mechanism, and also allows for easy head replacement. The purpose is to

Structure of the Invention The present invention &-J includes a reproducing head for reproducing data recorded on a tape, a recording head for recording new data, and a mechanism that can be moved slightly in the thickness direction of the tape between the two heads. By adjusting the position of the tape guide mechanism, the length of the tape between both heads can be continuously changed, and the delay of the playback ZORO 1' seek can be accurately set to the value set by all the electric circuits. It is something that can be adjusted to high school level 1.

- Also, the present invention arranges a playback head, a recording head, and a tape guide mechanism located between the two heads and capable of changing the length of the tape between the two heads on the same substrate. After adjusting all the lengths to the specified values, 3
It can be relocated without disrupting the positional relationships between people.

Furthermore, the present invention has fixed tape guide columns that are erected on the same substrate and are located on both sides of the tape guide mechanism inside the playback head and the recording head, and the tape guide mechanism can be moved in the thickness direction of the tape. Also, it is possible to keep the winding angle of the tape around each head unchanged.

Explanation of Leprosy Example FIG. 1 shows a plan view according to an embodiment of the present invention, and FIGS. 2 and 2 show a top view thereof. 1 is a mounting board, and 2,4° 7.1o is a fixed tape guide column that is fixed to the mounting board 1.

3 is a playback head, 8 is a recording head, 9 is a playback head,
Each is fixed to the mounting board 1. 5 ((J, 1illjl with a movable Qi 7 guide column, fixed to the I layer mechanism 6, and the adjustment mechanism 6 is fixed to the substrate 1.

Reference numeral 13 indicates a small circumference screw of the h-terminal mechanism 6. 11. With three pillars, playback head 3,9 recording head 8. Connect the board 1 to which the tape guide supports 2, 4, 7.
It is fixed by 4.

A tape 12 runs in the direction of arrow Q in FIG. 2 during recording and playback.

False II (+7 examples of magnetism 1) configured as shown below-1-
Regarding the iT-+ record T4J raw device, its operation f'l' is as follows.
? L'n12 clear.

For example, while reproducing all the data recorded in 1CH month with lIj raw head 3, the data of external force 1 etc. is recorded with recording head 8 on the 20th H, and the data of ICH and 2C are recorded with Fj raw head 9.
I (If the 1st CH data has a certain time delay from the 20th H data when the 2nd data is played back at the same time, this is because the playback head 3 This corresponds to the fact that the tape length between the recording heads 8 is shorter than the set value.At this time, the fine adjustment screw 13 in Figure 1 is set to 7. The slot Fl!eb of 6 acts in the opening direction, and the tape guide branch 6 attached to the adjustment mechanism 6 moves in the direction of arrow P in FIG. The delay 84 can be adjusted to a set value.Of course, the opposite case can also be easily realized.

As described above, in the case of a false case, the tape traveling distance between the playback head 3 and the recording head 8 can be changed completely continuously, and the adjustment accuracy can also be improved.
fulcrum 6a and fine adjustment screw 13. The guide post 6 can be arbitrarily selected from the following devices. In this way, by configuring the difference between the electrical delay setting and the actual delay amount to vary the entire length of the travel path, the difference between the electrical delay setting and the actual delay amount is changed. j+ Adjustment on the road becomes unnecessary.

In addition, the reproducing head 3 is located on both sides of the movable guide column 5.
By arranging the fixed tape guide columns 4 and 7 inside the recording head 8 and the recording head 8, even if the movable guide column 6 moves, the playback head 3. The tape winding angle of 1'11 degrees relative to the recording head 8 does not change, and stable recording and reproduction output can be achieved.

Also, the playback heads 3, 9. Each head of the recording head 8 and the movable guide column 5Φγ fixed to the fixed guide column 2, 4, 7, 10 adjustment mechanism 6 are collectively fixed to the mounting board 11, and the magnetic recording and reproducing apparatus main body 16 is three pillars 11
By adopting a configuration in which the tape is attached through the block, synchronization accuracy between the reproduced data and the recorded data can be ensured even in any magnetic recording/reproducing device for blocks whose tape lengths are adjusted between the reproduction head 3 and the recording head 8 as described above. This allows the user to easily replace the head block at the site where the head block is actually used.

Effect of the invention μm Highly accurate synchronization adjustment of reproduced data and recorded data is possible, and the delay h1 adjustment circuit on page 9 inside the electric circuit becomes unstable, making it possible to reduce costs.

By incorporating the above-mentioned reproducing head, recording head, tape guide mechanism, etc. into a single mounting board, the compatibility of the head block can be guaranteed and the head block can be easily installed at the site where the magnetic recording FT production device is used. It is possible to exchange it. This also further improves mass productivity and reliability. In addition, fixed tape guide columns are installed inside all the playback heads and recording heads and on both sides of the tape guide mechanism, so that even if the retape guide mechanism is adjusted, the tape wrapping angle at both heads does not change. This makes it possible to realize a magnetic recording/reproducing device having many excellent features such as the ability to maintain stable recording/reproducing characteristics.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a magnetic recording/reproducing apparatus according to an embodiment of the present invention, and FIG. 2 is a front view thereof. 1... Idiomatic board, 3... Playback head,
8... Recording head, 9... Playback head, 6... Old... Movable tape guide support, 6... Adjustment mechanism, 4.7... White... Fixed tape. Guide post. Figure 1 Figure 2

Claims (3)

[Claims] (1) A magnetic recording and reproducing device comprising a reproducing head and a recording head, and a tape guide mechanism located between the two heads and capable of changing the length of the tape between the two heads. (2) Claim 1, which is characterized in that a reproducing head, a recording head, and a tape guide mechanism are provided on the same substrate.
(Its magnetism) j: Recording/playback device bamboo. (3) A patent claim characterized by having a fixed tape guide support that is erected on the same substrate and is located inside the pJ raw head and the recording head and on both sides of the tape guide mechanism. The magnetic recording and reproducing device according to item 1.