Registers – Systems controlled by data bearing records – Credit or identification card systems
Patent
1990-12-07
1993-11-23
LaRoche, Eugene R.
Registers
Systems controlled by data bearing records
Credit or identification card systems
235449, 235475, 346 745, 360125, G06K 701
Patent
active
052646858
DESCRIPTION:
BRIEF SUMMARY
FIELD AND BACKGROUND OF THE INVENTION
The present invention relates to a coding device for magnetic cards, having at least one magnetizing device which comes against the surface of the card to be magnetized, said device having a magnetizing pin and excitation coil surrounding it as well as an electric control device for the magnet coil.
Such a coding device is known in the form of a hand-held instrument (Federal Republic of Germany OS 28 51 713). The pointwise magnetization of the magnetic card requires a perforated template so that the magnetization pin is passed through the holes which determine the arrangement of the coding. The control device is then actuated, the excitation coil provided with current, and the magnetization pin produces the corresponding point of magnetization on the magnetic card. This development has the disadvantage of the large amount of labor required for the coding of the magnetic card. This must be done very carefully so that the magnetized regions are not produced at the wrong place. Thus such a coding device is not suitable for automatically operating installations.
SUMMARY OF THE INVENTION
The object of the present invention is so to develop a coding device of the type in question that is of simple construction in such a manner that coding of the magnetic card is possible within a short time. The coding furthermore should also be adapted to be carried out automatically.
This object is achieved in a coding device of this type in the manner that the magnetization pin is arranged on a wide side of a card passage channel.
As a result of this development, there is created a coding device of the type in question by means of which coding can be produced within a short time on the magnetic card. The coding of the magnetic cards is now effected continuously. The magnetization time and the preferably constant speed of passage of the card are so adapted to each other that the magnetic card practically scarcely moves during the magnetization in view of the extremely short magnetization time. In practice this takes the form that by means of a magnetization pin which is preferably of circular cross section, circular regions of magnetization are also produced on the magnetic card.
Furthermore, several magnetization regions can be produced on a magnetic card by a single magnetization device, the magnetization regions lying one behind the other on a track. Since the magnetic cards can be coded in a short time (during the passage through the card passage channel), use is possible in entrance control systems such as, for instance, for bath houses. Upon entrance into the bath house and after paying a fee, the visitor is given a correspondingly coded magnetic card by means of which a magnetic lock provided on a locker door can be actuated. Upon leaving the bath house, the magnetic card is then taken back and then, after the erasing of the code, to be provided with a different code and be issued again. The coding can be effected automatically, i.e., on the one hand in the continuous passage process and on the other hand under computer control.
One advantageous further development consists in providing a plurality of magnetization devices the magnetization pins of which lie on channel longitudinal tracks arranged spaced apart from each other on the longitudinal edge of the card passage channel. In this way, the coding regions can be produced in accordance with a system pattern. Despite the production of a large number of magnetization points, the speed of passage of the magnetic cards need not be reduced.
In this connection, it is advantageous for the magnetization pins to lie staggered with respect to each other in the longitudinal direction of the track. By this measure, no special consideration need be taken of the structural shape of the magnetization devices. Despite track lines which lie close to each other and permit a fine system grid, it is not necessary to use particularly thin magnetization pins or coils. The staggered arrangement in the track longitudinal direction always makes it p
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Farber Martin A.
Glenbocki Christopher R.
LaRoche Eugene R.
Schulte-Schlagbaum Aktiengesellschaft
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