JPH0296902A - magnetic recording and reproducing device - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording and reproducing apparatus for recording, reproducing, and erasing video and audio signals.

Conventional technology In recent years, magnetic recording and reproducing devices have become smaller.

There has been a remarkable trend toward multifunctionality and lower prices. Particularly in the area of multi-functionality, the number of magnetic recording and reproducing devices equipped with erasure-only magnetic heads has increased in order to improve editing functions, and devices with multiple erasure-only magnetic heads have also appeared in order to improve editing accuracy. Therefore, there is a growing demand for lower prices for such multifunctional magnetic recording and reproducing devices.

The conventional technology will be explained below.

FIG. 2 is a block diagram showing the configuration of the main parts of a conventional magnetic recording/reproducing device, in which 1 is an amplifier circuit, 2 is a transmission system consisting of a stator and rotor of a rotating transformer, and 3
4 is a transmission system constructed in the same manner as 3 above, 4 is an erasing-only magnetic head, and 5 is an erasing-only magnetic head. In this way, in the conventional technology, in order to supply the erase signal generated by the amplifier to a plurality of erase-only magnetic heads, a transmission system with the same number of rotating transformers as erase-only magnetic heads is required. .

Problems to be Solved by the Invention However, in the conventional configuration described above, if the number of erasing-only magnetic heads is increased, the number of rotating transformer systems must also be increased, and there is a problem that it cannot meet the demands for miniaturization and low cost. was there.

The present invention solves the above-mentioned conventional problems, and makes it possible to configure a plurality of erasing-only magnetic heads without increasing the transmission system of the rotary transformer, resulting in smaller size, lower cost, and higher cost. The purpose of the present invention is to provide a magnetic recording/reproducing device that can realize improved performance.

Means for Solving the Problems In order to achieve the above object, the magnetic recording and reproducing apparatus of the present invention has a configuration in which a plurality of erasing-only magnetic heads are connected in series or in parallel to one transmission system of a rotating transformer. are doing.

Function: With this configuration, even if a plurality of erase-only magnetic heads are used, the structure can be configured without increasing the number of transmission systems of rotary transformers. Accordingly, the number of rotary transformer transmission systems can be reduced compared to the conventional technology.

EXAMPLE An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the main parts of a magnetic recording and reproducing apparatus according to an embodiment of the present invention. In FIG. 5 is an erase-only magnetic head, and 5 is an erase-only magnetic head.

Next, the operation will be explained. In this embodiment, the erasing signal amplified by the amplifier circuit 1 flows through a transmission system 7 of a rotating transformer to an erasing magnetic head 4.6 connected in series to the rotating transformer, and is directed to the erasing magnetic head 4.6 connected in series to the rotating transformer. The signal recorded on the abutting magnetic tape 6 is erased. By using the above configuration and operation, it is possible to transmit the erase signal to a plurality of erase-only magnetic heads using only one rotary transformer transmission system 7, and the number of rotary transformer transmission systems can be increased compared to the conventional method. Therefore, it is possible to configure a magnetic recording/reproducing device having a plurality of erase-only magnetic heads.

Furthermore, by using the configuration of the present invention, the number of rotating transformer transmission systems required as a whole is reduced, so video signals, audio signals, etc. can be transmitted within the limited dimensions of the rotating transformer compared to when using conventional technology. The size that can be allocated to the transmission system increases, and the characteristics of the signal transmission system can also be improved.
There are also secondary effects.

In the above embodiment, the erase-only magnetic heads 4.5 are connected in series, but the same effect can be obtained even if they are connected in parallel.

Effects of the Invention The present invention provides a magnetic recording and reproducing device that can reduce the number of rotary transformer transmission systems by connecting a plurality of erase-only magnetic heads to one rotary transformer transmission system, thereby meeting the demand for miniaturization and lower cost. can be provided.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of the main parts of a magnetic recording/reproducing apparatus according to an embodiment of the present invention, and FIG. 2 is a block diagram showing the main parts of a conventional magnetic recording/reproducing apparatus. 1... Amplifier circuit, 4.5... Erase head, 7... Rotating transformer transmission system.

Claims (1)

[Claims] A plurality of magnetic heads that come into contact with the magnetic tape while rotating and are necessary for recording and reproducing video and audio signals; A plurality of erase-only magnetic heads necessary for erasing, a rotor of a rotating transformer connected to the magnetic head, a stator of the rotating transformer disposed opposite to the rotor of the rotating transformer, and a stator of the rotating transformer. and an amplifier circuit connected to the rotary transformer, and a plurality of erase-only magnetic heads that simultaneously supply erase signals are connected to the same signal transmission system constituted by the rotor and stator of the rotary transformer. Recording and playback device.