Drexler Technology Corporation

Christopher J Dyball

Jerome Drexler

Eric W Bouldin

Richard M Haddock

A base layer of an information storage card is coated with a first coating layer that will glow a first color under longwave ultraviolet light. A second coating is applied onto the first coating. This second coating will glow a second color under ultraviolet light. This second coating can then be printed on using standard printing techniques. An attempt to alter the card by removing the printing will damage the first and second coating in a nonuniform manner. This damage will be seen under longwave ultraviolet light, even if the card has been reprinted.

Tamper resistant identification card

A method for providing convenient, secure access to numerous benefits with a single wallet sized card having a high capacity data storage area, preferably an optical stripe, and a lower capacity magnetic storage stripe. The high capacity area is indelibly written with data denoting a set of entitlements and records of the owner of the card. To obtain use of the entitlements, the owner takes the card to a data conversion terminal and selects a set of entitlements from a menu displayed at the terminal and, provided that the selected set is a subset of the entitlements indelibly recorded on the high capacity area of the card, data is written on the magnetic stripe of the card authorizing use of the selected entitlements. The data written on the magnetic stripe can be used to obtain benefits at numerous existing and foreseeable magnetic stripe readers. If the selected set of entitlements is not a subset of those indelibly recorded, suggesting that the possessor of the card is not the owner of the card, such writing of data on the magnetic stripe is prevented, denying use of the card to obtain benefits.

Two stage read-write method for transaction cards

A system for deterring fraudulent use of wallet-size cards in local benefit dispensing terminals has a permanent data storage medium and a temporary data storage medium disposed on each card. A first card writing device has means for acquiring biometric information from a person and for writing a template of that information on the permanent storage medium. A verification terminal has similar means for acquiring biometric information from a possessor of the card, and also has a means for reading the biometric information from the permanent storage medium of the card. Upon inputting biometric information from both the card and the possessor of the card, the verification terminal compares the information, and, if they match, writes data allowing limited benefits on the temporary data storage medium of the card. This data can be read by a plurality of existing benefit dispensers at other locations, such as automated teller machines, which can then dispense benefits authorized by the data. The limitation on benefits and the required repeated verification enhances security of the cards and the benefit dispensing system.

Anti-fraud verification system using a data card

An optical data identification card for an individual containing a photograph of the authorized user and a strip of optical contrast laser recording material with a laser-written macroscopic bi-level image of the authorized user to authenticate the photograph. The bi-level image is constructed by applying a dither matrix to a digital image file corresponding to the photograph. Each dark pixel consists of an array of high-density laser recorded spots or lines.

Laser imaged identification card

A method for deterring fraudulent voting involving use of wallet-size cards having a permanent data storage medium and a temporary data storage medium disposed on each card. A first card writing device has means for acquiring biometric information from a person and for writing a template of that information on the permanent storage medium. A voter registration verification terminal has similar means for acquiring biometric information from a possessor of the card, and also has a means for reading the biometric information from the permanent storage medium of the card. Upon inputting biometric information from both the card and the possessor of the card, the verification terminal compares the information, and, if they match, writes data allowing limited use of the card for voting on the temporary data storage medium of the card. This data can be read by a plurality of voting terminals at other locations. The limitation on use of the card for voting and the required repeated verification enhances security of the cards and the voter registration and voting terminals and systems.

Anti-fraud voter registration and voting system using a data card

An optical data storage medium, such as a data card with a strip of optical data storage material, having peelable transparent protective layers adhered above the storage material. When a protective layer becomes too scratched to read or write through, it may be removed by peeling. More than one layer may be adhered successively above one another, and removed one by one as they become scratched. The peelable protective layers are preferably adhesive tapes made of Aclar, Mylar, polyester, or other hard-to-tear polymers with pressure sensitive adhesive. One or more of the layers, and an underlayer between substrate or card base and the storage material may be a water barrier material such as a polytrichlorofluoroethylene.

Data card with peelable protective layers

An optical data storage medium, such as a data card with a strip of optical data storage material, having a thickness approximately that of a credit card and one or more moisture barrier layers. One of the moisture barrier layers is an underlayer between substrate or card base and the storage material, while a second moisture barrier layer is one or more of the transparent laminating sheet and protective layers adhered above the storage material. The barrier layers may be any of the transparent materials, having a maximum moisture vapor transmission rate of 0.1 grams water vapor/100 inch square/mil/24 hours at 38 C and 90% relative humidity, such as polytrichlorofluoroethylene and polyvinylidene chloride. The underlayer may also be a nontransparent aluminum layer.

Growing community of inventors

Half Moon Bay, CA, United States of America

Christopher J Dyball