JPH02185701A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To manage only with one rotary head drum, a motor, and a control circuit each and to reduce the cost by arranging four magnetic heads for recording and reproduction on the outer peripheral surface of a rotary head drum at intervals of 90 deg. and providing two tape travel means where magnetic tape are wound at a 90-180 deg. angle. CONSTITUTION:When the magnetic recording and reproducing device is used, the two magnetic tapes 6 and 8 are wound around the outer peripheral surface of the rotary head drum 1 at the winding angle of, for example, 90 deg.. Thus, the two tape travel means 8 and 9 are provided for one rotary head drum 1 to manage only with one rotary head drum 1, a motor 10, and a control circuit 11 each which require high accuracy, thereby reducing the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording and reproducing device in which a magnetic head for recording and reproducing is arranged on the outer periphery of a rotary head drum.

BACKGROUND OF THE INVENTION In recent years, it has been desired to miniaturize magnetic recording and reproducing devices so that two magnetic recording and reproducing mechanisms can be arranged in the space of one device. Conventionally, in this type of magnetic recording/reproducing apparatus, as shown in FIG.
2 is provided with two magnetic heads 23, 24 and 25, 26 for recording and reproducing. And input terminal 2
The signals inputted from 7 pass through a recording circuit 28, and the - side passes through a rotary transformer 29 and is recorded on one magnetic tape 30 by one of the magnetic heads 23 and 24. The other one passes through the rotary transformer 31 and is recorded on the other magnetic tape 32 by the other magnetic heads 25 and 26.

In addition, in FIG. 4, 33 and 34 indicate the rotating head drum 21.
22, each with a control circuit 35.3
8.

Problems to be Solved by the Invention However, according to the above conventional configuration, two expensive rotating head drums 21, 22, motors 33, 34, and their control circuits 35, 36, which require precision, are required, resulting in increased costs. There was an issue of becoming.

Therefore, an object of the present invention is to provide a magnetic recording/reproducing device that can solve the above problems.

Means for Solving the Problems In order to solve the above problems, the magnetic recording and reproducing device of the present invention has four magnetic heads for recording and reproducing arranged on the outer peripheral surface of a rotary head drum every 90 devices. Two sets of tape running means are provided on the outer circumferential surface of the drum so that the magnetic tape is wound at a winding angle of 90 degrees to 180 degrees.

Effects According to the above configuration, there is only one expensive rotating head drum, one motor, and one control circuit thereof, each requiring precision.
It is possible to record on two magnetic tapes simultaneously.

EXAMPLE Hereinafter, an example of the present invention will be explained based on FIGS. 1 to 3.

1 and 2, reference numeral 1 denotes a rotary head drum of a magnetic recording/reproducing device, and on its outer circumferential surface, four first to fourth magnetic heads 2, 3, 4, . This magnetic recording and reproducing device also includes two magnetic tapes 6 and 7 on the outer peripheral surface of the rotary head drum 1.
Two sets of tape running means 8.9 are provided, each of which is wound with a winding angle of 90 degrees to 180 degrees. The rotation of the motor 10 for driving the rotary head drum 1 is controlled by a control circuit 11.
Further, the signal inputted from the input terminal 12 passes through the recording circuit 13, the rotary transformer 14, and the respective magnetic heads 2, 3, .
4.5 and recorded on two magnetic tapes 8.7.

In the above configuration, when the magnetic recording/reproducing device is used, the two magnetic tapes 6° 7 are held at 90° to 90°, as shown in FIG.
A range of 180 degrees, for example, a wrapping angle of 90 degrees (
θ) is wound around the outer peripheral surface of the rotary head drum 1. Therefore, as shown in FIG. 3(a), the first magnetic track 15A on one magnetic tape 6 is the first magnetic head 2, and the second magnetic track 15B is the fourth magnetic head 5.
The third magnetic track 15G is recorded by the third magnetic head 4, the fourth magnetic track 15D is recorded by the second magnetic head 3,
This is repeated thereafter. Further, as shown in FIG. 3(b), the first magnetic track 18A on the other magnetic tape 7 is the third magnetic head 4, and the second magnetic track 16B is the first magnetic track 18A on the other magnetic tape 7.
is the second magnetic head 3, and the third magnetic track 18G is the first magnetic head 3.
In the magnetic head 2, the fourth magnetic track 18D is recorded in the fourth magnetic head 6, and this process is repeated thereafter.

In this way, since two sets of tape running means are provided for one rotary head drum 1, the high-priced rotary head drum 1, motor 10, and its control circuit 1 that require precision are eliminated.
Only one piece is required for each type, and therefore costs can be reduced.

In FIG. 1, the windings of the rotary transformer 14 are provided independently for each magnetic head 2, 3, 4.5, but one set is connected in series to each magnetic head 2, 3, 4.5. Alternatively, signals may be transmitted in parallel.

Effects of the Invention As described above, according to the configuration of the present invention, four magnetic heads for recording and reproducing are arranged on the outer peripheral surface of the rotary head drum for every 80 devices, and 90 magnetic tapes are arranged on the outer peripheral surface of the rotary head drum. Since two sets of tape running means are provided that can wrap the tape at a winding angle of 180 degrees to 180 degrees, only one expensive rotating head drum, motor, and its control circuit that require precision are required, thereby reducing costs. Can be done.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the magnetic recording and reproducing apparatus of the present invention, in which FIG. 1 shows a schematic configuration, FIG. 2 is a schematic perspective view of a rotating head drum, and FIG. a) and (b)
) is a diagram showing a recording state of a magnetic tape, and FIG. 4 is a diagram showing a schematic configuration of a conventional example. 1... Rotating head drum, 2, 3, 4, 5...
Magnetic head, 6, 7...Magnetic tape, 8, 9...
- Tape running means.

Claims (1)

[Claims] 1. A tape in which four magnetic heads for recording and reproduction are arranged every 90 units on the outer circumferential surface of a rotary head drum, and the magnetic tape is wound around the outer circumferential surface of the rotary head drum at a winding angle of 90 degrees to 180 degrees. 2 means of traveling
A magnetic recording and reproducing device equipped with a set.