JPS60217580A - Magnetic recording/reproducing device - Google Patents

Abstract

PURPOSE:To use both of a tape-shaped magnetic recording medium and a disc- shaped magnetic recording medium to record and reproduce picture information easily and economically by not only running the former medium but also rotating the latter with a common driving means. CONSTITUTION:A drum 1 consisting of a rotary drum 2 and a fixed drum 3 is rotated by a motor 6, and video information or the like is recorded or reproduced on a tape-shaped magnetic recording medium 4 by magnetic heads 8 and 9. A disc-shaped magnetic recording medium 11 is pierced by a shaft 7 of the motor 6, and information is recorded and reproduced by a magnetic head 14. Consequently, since two recording mediums 4 and 11 are driven by a driving means 5, the constitution is simplified and processing means are shared to economize the device.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a magnetic recording/reproducing apparatus for recording and/or reproducing magnetically recorded information on a magnetic recording medium.

BACKGROUND ART Conventionally, a recording medium such as a magnetic tape has been used when recording/reproducing video signals and audio signals in a device such as a television that outputs video signals and audio signals. Magnetic tape is suitable for @EC when it is used to store video signals that change continuously over time, such as those output from television receivers. When recording/reproducing image information that does not change over time, such as text, recording media such as magnetic tape are used.

It is not suitable because it is not possible to randomly record/play back image information. When recording/reproducing image information that does not change over time using magnetic tape.

The part where the desired image information is recorded or.

Since the magnetic tape must run all the way to the part where image information is to be recorded, the waiting time is long.

Purpose An object of the present invention is to provide a tape-shaped first magnetic recording medium and a first tape-shaped magnetic recording medium.
It is an object of the present invention to provide a magnetic recording/reproducing device capable of simply and economically recording/reproducing image information using both a disk-shaped second magnetic recording medium.

Embodiment s1 FIG. U is a front view of the vicinity of the drum l of an embodiment of the present invention. It consists of a drum lt'i, a rotating drum 2 and a stationary drum 3, and the vertical length of the axis is, for example, approximately 6 cm. Rotating drum 2.

A first magnetic recording medium 4 realized by magnetic tape or the like
Information can be recorded/reproduced on the first magnetic recording medium 4I by rotating in a direction opposite to the traveling direction of the first magnetic recording medium 4I. 5 drive means, 1 drum. Consisting of a motor 6 and a shaft 7,
When the motor 6 is activated, the shaft 7 rotates and the drum 2 rotates once.

It has two rotating drums and a magnetic head 8.91.

The processing means 10#-t, which will be described later, converts video information etc. from the television receiver 21 and the like into magnetic recording information. Magnetic recording information is recorded/reproduced using a magnetic head 8.9 on the first magnetic recording medium 4 running at a constant speed.

The jg2 diagram shows the second
FIG. 2 is a front view of the magnetic recording medium 11. FIG. Second magnetic recording medium 1
The diameter of 1 is, for example, approximately 7 cm. At the center position of the second magnetic recording medium 11.

A hole 12 is provided through which the shaft 7 can be inserted.

The second magnetic recording medium 11 can be installed by inserting a shaft 7 through the upper part of the drum 1, as shown in FIG. The above-mentioned magnetic recording information can be randomly recorded/reproduced on the track band 13 using a magnetic head 14'.

(In this way, the driving means 5 can commonly drive the first and second magnetic recording media 4.11,
Configuration is simplified. Similarly, processing means 10, which will be described later, can also be used in common for the first and second magnetic recording media 4, 11, so that the configuration can also be simplified.

FIG. 3 is a block diagram of a magnetic recording/reproducing apparatus 20 constructed in accordance with the present invention. What is the control means?

When recording video information from the television receiver 21 onto the first magnetic recording medium 4, the switch SWI is activated.

SW2. SW3.5W4Th terminal Sla, S2a.

Connect to S3a and S4a, respectively. switch SW1
It is used to switch between the revision receiver 21 and the input circuit 22 that manually inputs various information from a computer, information network, etc. The switch SWa is the processing means 10
Used to switch between recording and playback. Switch SWa#-t is used to switch the first or second magnetic recording medium 4.11. The switch 5W-1j is for synchronizing the rotation of the rotary drum 2 with the processing means 10.
This is used to switch between recording and reproduction of a control signal recorded on the first magnetic recording medium 4, which will be described later. Encoding circuit 2
Third, the information output from the input circuit 22 is converted into a code suitable for recording.

An FM (frequency modulation) circuit 24 frequency-modulates the input information and outputs it to a recording amplification circuit 25.

The recording amplification circuit 25 amplifies the input information.

The information amplified by the recording amplification circuit 25 is recorded by the first or second magnetic recording medium 4.11.

When the medium to be recorded is the second magnetic recording medium 11, the track selection circuit 2
6i,) Select a rack. The motor 27 moves the magnetic head 14 to an arbitrary location in response to the output from the trunk selection circuit 26.

The synchronization separation circuit 28 outputs a synchronization signal based on a video signal from the television receiver 21 or the like.

The control signal recording amplification circuit 29 amplifies the synchronization signal from the synchronization separation circuit 28, converts it into a control signal, and records it on the first magnetic recording medium 4. When playing, switch SW
J is connected to the terminal S4b, the aforementioned control signal is reproduced, amplified by the control signal recording amplification circuit 31, and inputted to the servo circuit 32-. The servo circuit 32 drives the gear stan motor 33 in response to the output from the control signal regenerative amplifier circuit 31.

The servo circuit 34 drives the motor 6 based on the synchronization signal from the synchronization separation circuit 28 . Therefore, the rotating drum 2
The rotation of the recording medium 4 is synchronized with the movement of the 1m1IB recording medium 4.

When the first t7 IC reproduces all the information recorded on the second magnetic recording medium 4.11, the control means controls the switch SW:
Connect to l terminal S2b. The magnetic head 8.9 and fc transmit the information output from the magnetic head 14 to the amplifier circuit 35.
is amplified by Amplified information #-t, lJ minta 3
6 removes amplitude noise. limiter 36 to 1
The information from which amplitude noise has been removed is demodulated by X in the FM video signal demodulation circuit 37 and output to the television receiver 21 as a video signal.

On the other hand, if the recorded information is data from the input circuit 22, the limiter 36 removes amplitude noise, then the FM data demodulation circuit 38 demodulates the information, and the information is input to the code demodulation circuit 39. . A code demodulation circuit 39 converts the information into a form suitable for the output circuit 40,
The signal is output to an output circuit 40 consisting of a computer, an information network, etc.

As described above, the drive means 5. associated with the first and second magnetic recording media 4.11. Since the processing means lO and the control means can be shared, the magnetic recording/reproducing device f! is efficient and economical. 1201r can be realized.

According to the present invention, image information that changes over time, such as a video signal, is recorded on the 1g1 magnetic recording medium 4, and image information that does not change over time, such as a sentence, is recorded on the second magnetic recording medium 11. It is easy to adjust the sound level of the recording medium according to the image information, such as when recording on the image information.

Also, by simply changing the switch SWa, the first or second
The magnetic recording medium 4.11 can be easily switched.

FIG. 4 shows a magnetic recording/reproducing device 5 according to another embodiment of the present invention.
0 is a block diagram of 0. This first example is similar to the above-described example, and corresponding parts are given the same reference numerals. Television reception $2 by switch 5W10.8W11
1 and the like are simultaneously recorded on v;1 and the second magnetic recording medium 4.11. Also, information is transmitted from the Ial magnetic recording medium 4 to the second magnetic recording medium 11. So-called dubbing can be performed. 1st and 2nd
Magnetic recording medium 4. When performing simultaneous +C recording of video signals from the IIIm television receiver 21, for example, the connection line S W 10 a * of the switch '-3 W IO
S Wlob ke, connected to terminal S 'W 10 c,
Connection wire of switch SWI 1 SWI 1 a, SWI
lb is connected to terminals 5W11'c and SWI1d, respectively.

When transmitting the video signal recorded on the first magnetic recording medium 4 to the second magnetic recording medium 11, for example, line ll'
Connect to the t-line 12 and connect the connection line 5 of the switch 5WlO
Connect terminals 5w10d and 5W10c to W10a and 5W10b'
connection wire SW1 of switch SWI 1.
1 a, SWI l b to terminals 5W11c, 5W11d
All video signals of the second magnetic recording medium 11 may be connected to the first magnetic recording medium 4.
For example, if the connection wire S of switch 5W11
WI 1 a, SWI 1 bah terminal 5w1id, 5
Connect to W11c, and the following connections are as described above.

In this way, switch SW1'0. When SWI 1 is installed as shown in Figure 4, simultaneous recording and dubbing can be performed.

In the above embodiment, the shaft 7 was inserted into the hole 12 of the second magnetic recording medium 11 to indirectly drive the second magnetic recording medium 11. Alternatively, the second magnetic recording medium 11 may be driven by transmitting the signal to the location.

According to the present invention, more than one effect can be obtained by sharing the drive means for the first and second magnetic recording media.

The first and second magnetic recording media can be used easily and economically.

[Brief explanation of drawings]

Figure 1 is a front view of the vicinity of the drum of an embodiment of the present invention, @2
3 is a block diagram of a magnetic recording/reproducing apparatus 20 constructed according to the present invention, and FIG. 4 is a magnetic recording/reproducing apparatus according to another embodiment of the present invention. 5
0, which is a block diagram of 0

Claims (1)

[Claims] A tape-shaped first magnetic recording medium. The apparatus is capable of fully driving with a disk-shaped second magnetic recording medium. A magnetic recording/reproducing apparatus characterized by comprising a driving means common to first and second magnetic recording media that causes the @l magnetic recording medium to travel and rotates the second magnetic recording medium.