| 7003678 |
IC card and IC chip module |
| Feb-21-2006 |
In an IC card 30 is sealed an IC chip 70 provided with an exposure sensor 84. When exposure sensor 84 detects that IC card 30 has been opened, exposure sensor 84... |
| 6802008 |
IC card and IC chip module |
| Oct-5-2004 |
In an IC card 30 is sealed an IC chip 70 provided with an exposure sensor 84. When exposure sensor 84 detects that IC card 30 has been opened, exposure sensor 84 outputs an exposure detection signal to... |
| 6766452 |
Method of checking the authenticity of an electric circuit arrangement |
| Jul-20-2004 |
A method of checking the authenticity of a digital electric circuit arrangement is achieved in that a concatenation (6; 8, 9) of at least a few circuit-technical elements (10) of the electric circuit arrangement... |
| 6523741 |
Apparatus for controlling the rental and sale of age-controlled merchandise and for controlling access to age-controlled services |
| Feb-25-2003 |
The present invention relates to a method and apparatus for controlling the distribution of age controlled merchandise or services based upon inputting personal information data encoded on an identification... |
| 6354506 |
Method and apparatus for impeding the counterfeiting of cards, instruments and documents |
| Mar-12-2002 |
To impede the counterfeiting of a valuable instrument (e.g., a cash card, negotiable instrument or any document), an issuance mark is formed on the instrument at a programmed distance from a reference... |
| 6042006 |
Authentication system wherein definition signals of two devices are altered, communicated between the two devices, and compared |
| Mar-28-2000 |
An authentication system having a first device and a second device between which signals may be communicated. The first device includes a first memory for storing a definition signal and the first device... |
| 6039247 |
Secure, stored-value systems and methods of transferring monetary values in one or more transactions to a specific receiving device |
| Mar-21-2000 |
Methods and systems for encoding encrypted monetary values onto transfer vehicles include one or more payment, encoder, and encrypter devices, and, associated with each designated receiving device such... |
| 5594229 |
Method and apparatus for checking the authenticity of a checking object by detecting magnetic flux reversals |
| Jan-14-1997 |
A number of bistable magnetic devices are dispersed in a scanning region of a checking object. Each bistable magnetic device is formed of a nonmagnetic material which undergoes a drastic flux reversal... |
| 5583333 |
Checking objects including bistable magnetic devices, to be checked for authenticity |
| Dec-10-1996 |
A number of bistable magnetic devices are dispersed in a scanning region of a checking object. Each bistable magnetic device is formed of a nonmagnetic material which undergoes a drastic flux reversal... |
| 5569898 |
Selective card entry gate with ridged profile |
| Oct-29-1996 |
A card entry gate has a slot defining several ridges extending longitudinally from the upper and lower surfaces of the slot. A data-bearing card, with an encoded strip and embossed portions, fits between... |
| 5473147 |
Method and an apparatus for checking objects to be checked for authenticity |
| Dec-5-1995 |
A number of high-permeability magnetic elements are dispersed in a scanning region of a checking object. A core of a processing apparatus is provided with an exciting coil and a sensor coil. When a bias... |
| 4711993 |
Fraud-resistant manual magnetic reader-writer system for debit card use |
| Dec-8-1987 |
A fraud-resistant manually-fed reader-writer is especially suited for debit card use, in which a credit balance is read into the memory of the reader. When the card reaches the end of its insertion-reading... |
| 4442345 |
Apparatus for and method of recycling recording carriers, such as credit cards, including non-volatile erasable memories for identification data |
| Apr-10-1984 |
A credit card includes a memory having first and second zones in which are respectively stored variable and fixed data. The data stored in the first zone includes first, second and third bit fields respectively... |
| 4357529 |
Multilevel security apparatus and method |
| Nov-2-1982 |
A card-encoding system and method preserves the security of the encoding process against duplication and counterfeiting of cards by securing the interactions under the control of the individual and then... |
| 4328414 |
Multilevel security apparatus and method |
| May-4-1982 |
A card-encoding system and method preserves the security of the encoding process against duplication and counterfeiting of cards by securing the interactions under the control of the individual and then... |
| 4322613 |
Method for tamper-proofing magnetic stripe card reader |
| Mar-30-1982 |
A method for inhibiting tampering with data on a magnetic stripe card is disclosed. The data are erased if the card is prematurely withdrawn from the reader/writer. A write protect bit is set and recorded... |
| 4013894 |
Secure property document and system |
| Mar-22-1977 |
A secure property document and system are provided which prevents the use of fraudulent credit cards and other documents. The documents each include optical and magnetic data sets. Each data set contains... |
