Automatic transaction machine system for checking card data and embossed characters

• US 5,151,582 A
• Filed: 12/14/1989
• Issued: 09/29/1992
• Est. Priority Date: 12/21/1988
• Status: Expired due to Term

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Fujioka, Toshinori
• Primary Examiner(s): Levy, Stuart S.
• Assistant Examiner(s): GLEMBOCKI, CHRISTOPHE
• Application Number:
  US07/450,456
• Time in Patent Office: 1,020 Days
• Field of Search: 235/454, 235/440, 235/469, 235/462, 235/437, 235/449, 382/1, 382/11
• US Class Current: 235/469
• CPC Class Codes: G06K 19/14 the marking being sensed by radiation
• CPC Class Codes: G06K 7/0004 Hybrid readers
• CPC Class Codes: G06Q 20/347 Passive cards
• CPC Class Codes: G07F 7/08 by coded identity card or credit card or other personal identification means without personal verification means G07F7/02
• CPC Class Codes: G07F 7/0813 Specific details related to card security
• CPC Class Codes: G07F 7/086 by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer for security documents G07D7/00; for the reading of record-carriers in general G06K7/00; for the design of coded credit-cards G06K19/10
• CPC Class Codes: G07F 7/125 Offline card verification

Abstract

In order to check if information stored on a card is authentic, the embossed character and figure information is compared with the information on the card. The rays radiated from the light emitting elements arranged in a line pass through a slit whose width is substantially equal to the thickness of embossed portions. Then, the rays are reflected on a card surface and received at an optical sensor consisting of LED elements arranged in a line as the card is in transit. The optical sensor is oriented in a manner to keep the same angle of reflection as the angle of incidence with respect to a normal. The light emitting elements are oriented to form another angle of incidence. These elements are used for reading the printed characters. To read a color pattern, a sensor having a photo detection sensitivity toward a normal of the card serves to receive the scattered rays reflected on the card, which rays are obliquely radiated to the card.

Claims

1. An automatic transaction machine system giving access to information recorded on a card as embossed figures and printed information before starting a transaction comprising:

(a₁) data read means for reading data stored by said card;

(a) means for controlling said data read means to read data stored by said card,

(b) first light emitting means for radiating a first set of rays onto figures embossed on a surface of said card,

(c) second light emitting means for radiating a second set of rays onto printed information on said card;

(d) image sensor means for receiving one of said first and second sets of rays after reflection from said card, said image sensor means including a plurality of photodetector elements,

(e) means for controlling said image sensor means, and

(f) checking means, connected to said data read controlling means and said image sensor means, for comparing information from said data read by said data read means with both of said embossed figures and said printed information for determining legitimacy of said card.

2. A system according to claim 1, wherein the first set of rays emitted by said first light emitting means and received by said image sensor means define respective propagation paths that further define respective angles of incidence and reflection to a normal of a surface of said card, wherein the respective angles of incidence and reflection are substantially equal to each other in absolute value.

3. A system according to claim 2, wherein said first light emitting means is disposed to enable said image sensor to receive the first set of rays regularly-reflected from the embossed information, and said second light emitting means is disposed to enable said image sensor to receive a diffused component of the second set of rays reflected from the printed information;

wherein said second light emitting means is disposed so as to define an angle between said card normal and the second set of rays that is smaller than an angle φ

between the rays diffusely reflected by said card surface and said card normal.

4. A system according to claim 3 further comprising a color sensor substantially oriented along the card normal for receiving light reflected from a specific color design coated on the card, and

a third light emitting means, disposed relatively opposite to said second light emitting means with respect to said color sensor, for radiating light toward said printed characters,

wherein when the specific color design on the card is read, said first light emitting means is deenergized and said third light emitting means is energized.

5. A system according to claim 1, further comprising:

means forming a slit for providing an aperture through which at least some of the first set of rays pass from said first light emitting means towards said card;

wherein each said embossed figure is characterized by a substantially common height above the card surface, and wherein said slit is disposed substantially perpendicular to the first set of rays radiated from said first light emitting means, said slit having a substantially equal width to the height of said embossed figures above the card surface.

6. A system according to claim 5 further comprising an elongated convex lens disposed for focusing rays reflected from said card onto the plurality of photo detector elements included in said image sensor means.

7. A system according to claim 1 further comprising operation input means for receiving a request for issuance of a paper card, and

control means for instructing said first light emitting means to radiate the first set of rays onto the figures embossed on said card in accordance with said request for issuance of a paper card, for instructing said image sensor means to read the information embodied in said embossed figures, and for issuing a paper card containing printed information corresponding to the information embodied in said embossed figures.

8. An automatic transaction machine system including a checking means for reading information recorded on a card before starting a transaction, said checking means having means for reading information stored in a magnetic stripe on said card, means for optically reading embossed information formed on a surface of said card, means for optically reading printed information formed on said card, and means for determining whether the information stored in the magnetic stripe is identical to the printed information and the embossed information.

9. A method for preventing unauthorized use of an automatic transaction machine card having information stored in a magnetically-readable region located thereon, having embossed information stored in a first optically-readable region located thereon, and having printed information stored in a second optically-readable region located thereon, comprising the steps of:

reading a set of information from the magnetically-readable region;

reading a set of embossed information from the first optically-readable region;

reading a set of printed information from the second optically-readable region;

comparing the magnetically-readable information with both the embossed and printed information; and

verifying the authenticity of the card if both comparisons indicate identity of compared information, and indicating that the card is not authentic if at least one of the comparisons indicates a lack of identity of compared information.