JPS6030813Y2 - magnetic recording and reproducing device - Google Patents

Description

[Detailed description of the invention] This invention relates to a magnetic recording and reproducing device equipped with both a 2-track, 2-channel magnetic head and a 4-track, 2-channel magnetic head. The purpose of this system is to convert recorded signals into 4-track/2-channel format recording.

In general, when converting signals recorded in 2-track, 2-channel format to recording in 4-track, 2-channel format, in addition to a 2-track, 2-channel magnetic recording/reproducing device, a 4-track, 2-channel magnetic recording device is required. Prepare a recording and reproducing device, reproduce the recorded signal using the 2-track, 2-channel magnetic recording and reproducing device, and apply it to the 4-track, 2-channel magnetic recording and reproducing device. Normally, the information is recorded in a 4-track, 2-channel format onto another magnetic tape attached to the 4-track, 2-channel magnetic recording/reproducing device.

However, this kind of device always requires two magnetic recording and reproducing devices, and furthermore, when rerecording onto the same magnetic tape, it is necessary to repeat the operation twice, so it is not very desirable in terms of use. Ta.

This proposal eliminates the above-mentioned conventional drawbacks,
A magnetic head for 2-track/2-channel reproduction is further provided upstream of the 4-track/2-channel magnetic head.
A single magnetic recording/reproducing device can easily convert signals recorded in 2-track, 2-channel format into 4-track and 2-channel format.
It is constructed so that it can be converted to two-channel recording.

The magnetic recording and reproducing apparatus of the present invention will be described below with reference to drawings of one embodiment.

In the figure, 1, 2° and 3.4 are two tracks arranged sequentially according to the running direction (arrow direction) of the magnetic tape, respectively.
2-channel reproduction magnetic head, 4-track/2-channel erasing magnetic head, 4-track/2-channel recording magnetic head, 4-track/2-channel reproduction magnetic head, 5. 7. 8 are magnetic heads 1, 3.4 respectively
6 is a generator that generates an erase signal;
Sl, S2 are changeover switches, T1. T2 are a recording signal input terminal and a reproduction signal output terminal, respectively.

In the above embodiment, if both the changeover switches sty 32 are turned on to the terminal a side, the signals recorded in the 2-track/2-channel format will be reproduced by the magnetic head 1 for 2-track/2-channel reproduction, and the amplifier 5 and the changeover switch Since the signal is applied to the 4-track/2-channel recording magnetic head 3 via the S1 and the amplifier 7, the 4-track/2-channel recording is performed sequentially on the same magnetic tape.

In this case, it goes without saying that the signals recorded in the 2-track/2-channel format are sequentially erased by the erasing head 2.

Further, in this case, since the selector switch S2 is turned on to the terminal a side, a 2-track/2-channel format signal appears at the terminal T2.

On the other hand, when the selector switch S□ is turned to the terminal side, the signal supplied to the input terminal T□ is applied to the magnetic head 3 via the amplifier 7, so that the so-called normal 4-track/2-track signal is applied to the magnetic head 3 via the amplifier 7. It can be used as a channel magnetic recording/reproducing device.

As is clear from the above embodiments, according to the magnetic recording and reproducing apparatus of the present invention, signals recorded in a 2-track, 2-channel format can be easily converted to recording in a 4-track, 2-channel format on the same magnetic tape. can be recorded,
It does not require any special equipment and is extremely advantageous in practice.

[Brief explanation of the drawing]

The figure is a schematic electrical wiring diagram of a main part of an embodiment of the magnetic recording/reproducing apparatus of the present invention. 1... Magnetic head for 2-track/2-channel reproduction, 2... Erase head, 3... Magnetic head for 4-track/2-channel recording, 4...
・Magnetic head for 4-track/2-channel playback, 5, 7
, 8... Amplifier, 6... Oscillator, S□
, S2...changeover switch, T1...input terminal, T2...output terminal.

Claims (1)

[Scope of utility model registration request] A magnetic head for 2-track/2-channel reproduction, a magnetic head for 4-track/2-channel erasing, a magnetic head for 4-track/2-channel recording, and a magnetic head for 4-track/2-channel reproduction are arranged in sequence according to the running direction of the magnetic tape, A magnetic recording/reproducing device characterized in that a changeover switch is provided so that a signal reproduced by a magnetic head for two-track/two-channel reproduction can be recorded on the same magnetic tape by a magnetic head for four-track/two-channel recording.