JPS627Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a magnetic card reader that sends and receives information via a magnetic card formed with a magnetic stripe having a plurality of tracks.

Conventionally, in magnetic card readers, it is necessary to record information based on clock pulses, and in particular when the card movement speed changes during magnetic recording, it is necessary to record a set amount at a constant density. In order to record information, it was necessary to provide a device for generating clock pulses at a frequency corresponding to the speed of the card.

An object of the present invention is to provide a magnetic card reader which does not require such a clock pulse generator and is capable of recording information at a predetermined density with a simple configuration.

The basic structure of the present invention consists of a reproducing head gap that reproduces information from a plurality of tracks formed on the magnetic stripe of a magnetic card, on which information is already recorded, and a reproduction head gap that records information on tracks other than the above-mentioned tracks on which information is already recorded. A recording head gap, clock pulse separating means for separating clock pulses from information reproduced by the reproduction head gap, and recording control means for recording information by the recording head gap on tracks other than the tracks on which the information has already been recorded, based on the clock pulses. It is a magnetic card reader equipped with

The magnetic card with multiple tracks on the magnetic stripe here refers to the magnetic card shown in Figures 1 and 2.
Magnetic stripe 2 of magnetic card 1 as shown in the figure
The track is divided into a first track 2a, a second track 2b, and a third track 2c, each of which is used independently.

For example, the first track 2a is IATA
(International Air Transport Association) magnetic recording band, and the second track 2b is ABA
This is a magnetic recording band for the American Bankers Association (American Bankers Association).

Then, magnetic recording of other standards is performed on the third track 2c.

In other words, by mutually utilizing these tracks,
If a clock pulse is separated from the information already recorded on another track and read out, and magnetic recording is performed on the other track based on this clock pulse, the predetermined recording density can be maintained even if the card speed during magnetic recording varies. It is possible to perform magnetic recording, updating, correction, etc.

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

The manual card drive type magnetic card reader 3 has a two-channel magnetic head 5 facing the magnetic card passage 4, as shown in FIG. It has a head gap 5b in parallel.

The magnetic card reader 3 has a pressing member (not shown) such as a buck roller at a position opposite the magnetic head 5 with the card passage 4 in between.
As the magnetic stripe 2 is moved by hand toward the right in FIG. 5, the magnetic stripe 2 is pressed against the magnetic head 5, and information is exchanged.

Currently, the second track 2b of the magnetic stripe 2 has ABA standard bank magnetic recording.
When magnetic recording has not yet been made on the third track 2c, when the magnetic card 1 is moved to the right in FIG. 5b is in close contact with the third track 2c.

2nd track 2 by the reproduction headcap 5a.
The data recorded in the clock signal b is reproduced, and the clock pulse is separated from the reproduced data.

Since this separated clock pulse has a frequency that corresponds to the change in the conveying speed of the magnetic card 1, if predetermined data is recorded on the third track 2c in synchronization with this clock pulse, the speed of the card during magnetic recording can be changed. Even if there are fluctuations in the magnetic field, magnetic recording, updating, correction, etc. can be performed at a predetermined recording density.

In this case, the standard requires a magnetic recording density of 210 BPI.
(bits per inch) and 75BPI, a clock pulse conversion means (not shown) may be provided.

FIGS. 4A and 4B show a magnetic head 5' in which a reproducing head gap 5'a and a recording head gap 5'b are arranged in parallel with each other by a fixed distance g.

Furthermore, it goes without saying that a plurality of independent magnetic heads may be provided when implementing the present invention.

The outline of the configuration of the present invention is shown in block diagram 6.
It will look like the figure.

As explained above, according to the present invention, when writing new information to a certain track, clock pulses recorded in other tracks on which information has already been recorded are used. If any of the information is already recorded,
Information can be written using the clock pulses, eliminating the need for a clock pulse generator, resulting in the effect that information can be recorded at a predetermined density with a simple configuration.

[Brief explanation of the drawing]

Figure 1 is a plan view of the magnetic card, Figure 2 is an enlarged view of the magnetic stripe in Figure 1, Figure 3 (a) is a side view of the magnetic head, (b) is its front view, and Figure 4 (a) is a side view of the magnetic head. 5 is a front view of the magnetic card reader, and FIG. 6 is a block diagram showing the structure of the present invention. 1...Magnetic card, 2...Magnetic stripe, 2
a...First track, 2b...Second track, 2
c...Third track, 3...Magnetic card reader, 4...Card passage, 5, 5'...Magnetic head, 5a, 5b...Head gap.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A reproduction head gap that reproduces information from a track on which information has been recorded among a plurality of tracks formed on the magnetic stripe of a magnetic card, and a reproduction head gap that reproduces information from a track on which information has been recorded, and a reproduction head gap that reproduces information from a track on which information has already been recorded, out of the plurality of tracks formed on the magnetic stripe of a magnetic card, and information on tracks other than the tracks on which information has been recorded. a recording head gap for recording information; a clock pulse separation means for separating clock pulses from the information reproduced by the reproduction head gap; and recording of information by the recording head gap on tracks other than the tracks on which the information has already been recorded based on the clock pulses. A magnetic card reader comprising a recording control means. (2) Utility Model Registration The magnetic card reader according to claim 1, wherein the magnetic head gap and the reproducing head gap are constituted by a two-channel magnetic head. (3) In the magnetic card reader according to any one of claims 1 and 2 of the utility model registration claims, the read clock pulse is converted into a recording clock pulse according to a preset clock pulse conversion ratio. A clock pulse. (4) In the magnetic card reader according to any one of claims 1 to 3, the reproduction head gap and the recording head gap are arranged side by side and shifted in the card movement direction. What was said.