JPS5913085B2 - magnetic recording and reproducing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording/reproducing method for a magnetic recording card, and more particularly to a recording/reproducing method for a magnetic recording card suitable for repeatedly reproducing an audio recording portion of a magnetic recording card.

As shown in FIG. 1, a general magnetic recording card 1 is configured such that a magnetic material 3 is provided on the entire surface or strip shape of a card substrate 2 such as paper or plastic, and audio, digital information, etc. are recorded thereon. . A magnetic recording card like this (
Magnetic cards (hereinafter referred to as magnetic cards) are used for language practice, early childhood education, blind education, cash payment systems, etc., and their use has been increasing in recent years. FIG. 2 shows the configuration of a general playback device for playing magnetic cards.

In FIG. 2, the card feed roll 4 is driven by a motor or the like, and a reproducing head 6 is provided facing the feed roll 10 and pressed by a spring 5 or the like, and the magnetic card 1 is placed on its magnetic surface. The magnetic card 1 is inserted between the feed roll 4 and the reproducing head 6 in the direction of the arrow in the direction of contact with the reproducing head 6, and the magnetic card 1 is run to perform reproduction. Now 15
When using a magnetic card for audio, especially language learning, the learner inserts the card into the above-mentioned playback device while looking at the characters, explanatory text, pictures, etc. printed on the magnetic card, and presses the playback head. 6 as an audible reproduced sound through an amplifier (not shown), 20 speakers (not shown), etc., and language learning is performed. When magnetic cards are used for language learning, etc., they have the advantage of using the visual and auditory senses at the same time and allowing the player to play any card they want to learn as many times as needed. With the method of playing cards using a general card playback mechanism, it is inconvenient to see the content printed on the card because the card is running when the card is played.
Another disadvantage is that if the same card is to be played repeatedly, the card must be replaced 30 times.

For this reason, an apparatus has been devised in which the recorded contents of a magnetic card are once re-recorded onto another endless recording medium, and the recorded contents are continuously and repeatedly reproduced from this endless recording medium. (For example, Utility Model Application No. 3552-3778 and Utility Model Application No. 52-3779) An example of such a reproducing apparatus is schematically shown in FIGS. 3 and 4. The magnetic card 1 is an endless recording medium that is driven in the direction of the arrow shown in the figure by a card feed roll, and at the same time the recorded contents of the card are reproduced by a reproducing head 6, the signal is also driven by the same feed roll 4. A recording head 8 with an erasing head records data on a one-loop tape 7, and a reproducing head 9 reproduces the contents recorded on the card from the one-loop tape 7. With this configuration, there is an advantage that the magnetic card only needs to be run once through the playback device, and the recorded contents of the card can then be played back many times while keeping it at hand.

Now, in the recording and reproducing method using such a magnetic card recording and reproducing device, each time a card to be reproduced is inserted into the device as described above, the symbol previously recorded on the loop tape is erased and a new one is recorded. The electric circuit must be configured so that the signal of the card inserted into the device is recorded on one loop tape, but in the example of the above-mentioned Utility Model Application No. 52-3778, when the card is inserted into the device, the signal of the card is recorded on one loop tape. While the card is in contact with the switch 10, the 1-loop tape is in a recording state, and the signal from the card is re-recorded on the 1-loop tape, and when the card leaves the switch 10, the switch 10 is activated. Then, the 1-loop tape enters the playback state, and is repeatedly played back every time the 1-loop tape goes around once.

Therefore, in order to put all the contents of a card onto one loop tape, the recording and playback time of one round of one loop tape must be equal to or longer than the playback time of the card.
If the recording/playback time on a loop exceeds the maximum playback time of the card length (i.e., the time that the card is in contact with the switch and almost the same time), the tape will switch from the recording state to the playback state before the loop tape completes one revolution. A portion of the previously recorded signal remains, causing inconvenience in use. In other words, as explained in Fig. 5, the card length and the maximum playback time (in this case, approximately the same time as the time when the card is in contact with the switch that turns the 1-loop tape into the recording state) are a, and recording is performed on one round of the 1-loop tape. If the (or playback) time is b, the previously recorded signal remains on one loop tape for the time b-a=c. To eliminate this inconvenience, you can put the tip of the card against the switch for a while and run one loop of tape for at least b-a=c time, then run the card, but do not leave the card still in contact with the switch. It is inconvenient to keep the tape running longer than necessary and may sometimes cause one loop of tape to run longer than necessary.

Furthermore, even after the card leaves the switch, a timer or an electric circuit may be used to extend the recording state for a fixed period of time, but these arrangements are costly. In the present invention, the playback time of the magnetic card, that is, the time the card is in contact with the switch that puts one loop tape into the recording state, is 1
This problem and inconvenience caused by shortening the recording (or reproducing) time for one round of the loop tape is eliminated. That is, by setting a>b in FIG. 5, c is avoided.

In this case, it is impossible to record all the signals from the leading edge of the card to the trailing edge on one loop tape, but this does not pose a particular problem since information is generally input with a small gap at both ends of the card. As in the example above, if the card and the 1-loop tape are driven by a feed roll with the same diameter, the length of the card is 1
Just keep the length of the loop tape short.

In addition, the card signal can be transferred to 1:1 by so-called contact magnetic transfer.
A similar effect can be obtained by making the length of the one-loop tape shorter than the card length even in a system in which the tape is re-recorded on a one-loop tape or the like and repeatedly reproduced from the one-loop tape or the like.

As described above, according to the present invention, the recorded contents of a card can be repeatedly reproduced more smoothly simply by configuring the recording/reproducing time of one loop tape to be shorter than the card reproducing time.

[Brief explanation of drawings]

FIG. 1 of the accompanying drawings is a schematic diagram showing an example of a magnetic recording card used in the magnetic recording and reproducing method according to the present invention, and FIG. 2 shows the configuration of a general reproducing apparatus for reproducing the magnetic recording card of FIG. 1. 3 and 4 are a plan view and a partial side view schematically showing an example of a reproducing apparatus to which the magnetic recording and reproducing method of the present invention is applied, and FIG. It is a figure for explaining. 1...Magnetic card, 4...Card feeding roll, 6...Playback head, 7...1
Loop tape, 8...recording head with erasing head, 9...playback head, 10...switch.

Claims (1)

[Claims] 1. In a magnetic recording and reproducing method in which a signal recorded on a magnetic card is re-recorded on another endless recording medium and this signal is repeatedly reproduced from this endless recording medium, the maximum reproduction time of the magnetic card length is One of the more endless recording media
A magnetic recording and reproducing method characterized in that the recording or reproducing time of a circumference is configured to be shortened. 2. The magnetic card and the endless recording medium are driven at the same feeding speed, and the length of one circumference of the endless recording medium is shorter than the length of the magnetic card in the feeding direction. Magnetic recording and reproducing method. 3. Re-recording of recording signals from the magnetic card to the endless recording medium is performed by contact magnetic transfer, and the length of one circumference of the endless recording medium is shorter than the length of the magnetic card in the feeding direction. The magnetic recording and reproducing method according to scope 1.