JPS62125587A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To set simply the order, the time, etc. of images to be projected by recording a soft program on some tracks of a disk together with video signals recorded on other tracks respectively. CONSTITUTION:A disk 1 contains 50 discoid tracks, for example, and the 1st 5th tracks counted from the disk center are defined as a soft program area together with the 6th-50th tracks defined as a video area respectively. When a power supply is applied, the disk 1 is rotated at a constant speed by a drive motor 2. Then a head drive motor 5 guides a reproduction magnetic head 3 to the soft program area of the disk 1. The signals read out in the soft program area are converted into digital signals by a demodulator 12 and stored in a RAM of a computer 6. Thus a soft program is read and the head 3 moves to the video area under the control of the controller 7 and reads the video signals of a designated tracks by the soft program.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic recording and reproducing apparatus using a disc-shaped magnetic recording medium having a plurality of tracks for recording not only video signals but also software programs. It is.

2. Description of the Related Art As this type of video magnetic recording device, a VTR (video tape recorder), a laser disk device, an electronic still camera, etc. are known. All of these record only images or only images and audio, and the software programs that run the computer are recorded on separate recording media.

Problems to be Solved by the Invention The software program for setting the order and time of displaying images is separate from the recording medium on which the images are recorded, and it is necessary to provide a set position for the software program in the device or This must be stored in the device in advance. For this reason, it is conceivable to store software programs in addition to video signals on the same magnetic recording medium.

Means for solving the problem: A magnetic recording medium is provided with a software program recorded on one or more tracks and a video signal recorded on other tracks, and when the power is turned on or initialization is performed. A reproducing magnetic recording head is positioned in a soft program area of a magnetic recording medium.

When the operating power is turned on or initialization is performed, the reproduction magnetic recording head reads the software program recorded on the magnetic recording medium, so the video signal is reproduced by setting the order of displaying the video, the time, etc. in advance. .

Example An embodiment of the present invention will be described based on the drawings.

First, the disk 1 as a magnetic recording medium is formed into a disk shape, and a plurality of, for example, 50 concentric tracks are set around the rotation center of the disk 1.

The first to fifth tracks from the center are defined as a software program area in which software programs are recorded, and the sixth to fifth o tracks are defined as a video area in which images are recorded. Such a disk 1 is driven by a drive motor 2 and rotates at a low speed.

Further, a reproducing magnetic head 3 is provided on the disk 1, and this reproducing magnetic head 3 is supported by a spindle 4 and is driven by a head driving motor 5 to drive the disk 1.
It is mounted so that it can move in a direction perpendicular to the track.

A computer 6 is provided, and a controller 7 as a control unit connected to the computer 6 is provided, and the head drive motor 5 is connected to the controller 7.
The drive motor 2 is connected to the controller 7 via a motor controller 8. Further, a demodulator 9 and a changeover switch 10 are connected to the motor controller 8, one contact of the changeover switch 1o is connected to the demodulator 9, and a common terminal is connected to the regeneration through an amplifier 11. It is connected to the magnetic head 3 for use. Further, a demodulator 12 for software programming is connected to another contact of the changeover switch 10, and this demodulator 12 is connected to the computer 6.

Next, the computer 6 has a CRT display 13.
is connected, and a speaker 15 is also connected via an amplifier 14.

In such a configuration, when the power is turned on, the drive motor 2 rotates the disk 1 at a constant speed, and the head drive motor 5 guides the reproducing magnetic head 3 to the soft program area of the disk 1. The signal read in this software program area is converted into a digital signal from the changeover switch 1o through the demodulator 12, and is stored in the RAM of the computer 6.
(random access memory). This reading is performed for all of the first to fifth tracks.

When the software program is read in this manner, the changeover switch 10 is switched under the control of the controller 7, and the reproducing magnetic head 3 moves to the video area and reads the video signal of the track designated by the software program. The signal is then converted into a digital signal by the demodulator 9, sent to the computer 6, and displayed as an image on the CRT display 13.

Furthermore, when music, sound effects, etc. are input into the software program, the sounds are output from the RAM in the computer 6 via the amplifier 14 and from the speaker 15. In addition, CR
Messages and characters retrieved from the computer 6 are also displayed on the T-display 13.

In the above embodiment, the video signal is read by a reproducing magnetic head that reads the software program. However, in the case where the software program is a digital signal and the video signal is an analog signal,
In that frequency range, the former is several MHz, while the latter is 100 to 500 KHz, so it is desirable to provide separate magnetic heads for reproduction.

Effects of the Invention As described above, the present invention prepares in advance a disk-shaped magnetic recording medium in which a software program is recorded on one or more tracks and a video signal is recorded on other tracks, and When playing back a recording medium, the magnetic playback head is moved to the soft program area of the magnetic recording medium when the power is turned on or during initialization, making it easy to set the order of images to be displayed and their times. This is something that can be done.

[Brief explanation of drawings]

The drawing is a block diagram showing one embodiment of the present invention. 1...Disk (magnetic recording medium), 3. Magnetic head for reproduction, 7...Controller (control unit) Applicant
Tokyo Electric Co., Ltd., ゛-V1

Claims (1)

[Claims] A disk-shaped magnetic recording medium is provided in which a software program is recorded on one or more tracks and a video signal is recorded on other tracks, and a reproduction magnetic head is provided for reading the content recorded on this magnetic recording medium. 1. A magnetic recording and reproducing apparatus, characterized in that a control section is provided with a program configured to move the reproducing magnetic head to a soft program area of the magnetic recording medium when power is turned on or initialized.