 |
|
|
|
|
|
 Title: |
US4626669:
Intercept system for intercepting stolen, lost and fraudulent cards
[ Derwent Title ]
|
| Country: |
US United States of America
|
| |
| Inventor: |
Davis, William H.; Fairview Park, OH
Goba, John J.; Elizabeth, NJ
Riggs, Dean D.; Avon Lake, OH
Zeewy, Abraham; Cleveland, OH
Flint, Howard M.; Chagrin Falls, OH
|
| Assignee: |
Fairview Partners, Fairview Park, OH
other patents from FAIRVIEW PARTNERS (188700) (approx. 2)
News, Profiles, Stocks and More about this company
|
| Published / Filed: |
1986-12-02
/ 1983-12-28
|
| Application Number: |
US1983000566180
|
| IPC Code: |
Advanced:
G06K 19/10;
G06K 19/14;
G07D 1/00;
G07F 7/12;
Core:
more...
IPC-7:
G06K 9/00;
|
| U.S. Class: |
Current:
235/380;
235/449;
283/070;
283/904;
Original:
235/380;
235/449;
|
| Field of Search: |
235/449,380
|
| Priority Number: |
| 1983-12-28 |
US1983000566180 |
|
| Abstract: |
A credit card (10) has a layer (28) of high coercivity magnetic material which is of a sufficiently high magnetic coercivity that once its dipoles are polarized, they are unable to be returned to a randomized distribution. The card is embossed with a man-readable code (30) and is electromagnetically recorded with a man-nonreadable code. Particularly, the electromagnetically recorded code includes an account code (42, 44), a visual comparison algorithm code (50), a visual comparison code (52), an electronic comparison code (54), a card identification number (56), and a personal identification number (58). A reader (60) reads the account code and produces a man-readable display (102) of the electromagnetically coded account number. To verify that he has compared the display with the account number on a receipt, the merchant marks the symbols on the receipt which correspond to the highlighted symbols of the display. From the visual comparison code, the reader determines a preselected subset of the man-readable to be highlighted. Further, the reader operates on the electronic comparison code with a preselected mathematical algorithm and compares the algorithm answer with a preselected portion of the account number. As a further verification, the reader operates on the card identification number with another preselected algorithm and compares the algorithm answer with the visual comparison code. Optionally, the reader may have a keyboard (130) on which the cardholder can enter a personal identification number which the reader compares with the electronically encoded personal identification number.
|
| Attorney, Agent or Firm: |
Fay, Sharpe, Fagan, Minnich & McKee ;
|
| Primary / Asst. Examiners: |
Pitts, Harold I.;
|
| Maintenance Status: |
E3 Expired Check current status
|
| INPADOC Legal Status: |
Show legal status actions
Family Legal Status Report
|
| Designated Country: |
AT BE CH DE FR GB IT LI NL SE AU BR DK JP US
|
| Family: |
Show 7 known family members
|
First Claim:
Show all 20 claims |
Having thus described a preferred embodiment of the invention, we now claim the invention to be:
1. A method of intercepting fraudulent credit cards comprising:
- laminating a layer of relatively high coercivity magnetizable material into a plastic card;
- selectively marking the card with a man-readable code;
- magnetically encoding at least selected portions of the high coercivity layer to encode the card with a magnetically readable code, the man-readable code and the magnetically readable code having a preselected correspondence, the magnetically readable code further including a check designation which is related to one of the man-readable and machine readable codes by a preselected relationship which is unpredictable from the man-readable code alone;
- during each of a plurality of financial transactions:
- magnetically decoding the magnetically readable code;
- comparing the man-readable and magnetically readable code for the preselected correspondence; and,
- recording a representation of the check designation to show that the magnetically readable code was decoded and compared with the man-readable code.
|
| Background / Summary: |
Show background / summary
|
| Drawing Descriptions: |
Show drawing descriptions
|
| Description: |
Show description
|
| Forward References: |
Show 11 U.S. patent(s) that reference this one
|
