Domenico Lahaye† and Herbert De Gersem∗ †DIAM Delft Institute of Applied Mathematics Department of Electrical Engineering, Mathematics and Computer Science TU Delft, Mekelweg 4, 2628 CD Delft, The Netherlands phone: +31.15.27.87.257 fax: +31.15.27.87.209 http://ta.twi.tudelft.nl/nw/users/domenico/ [email protected] ∗Faculty of Sciences, KU Leuven, Campus Kortrijk Etienne Sabbelaan 53, BE-...

Contactless mechanical components are mechanical sets for conversion of torque/speed, whose gears and moving parts do not touch each other, but rather they provide movement with magnets and magnetic materials that exert force from a certain distance. Magneto-mechanical transmission devices have several advantages over conventional mechanisms: no friction between rotatory elements (no power loss...

The market for the public transit fare payment system using contactless smart cards is rapidly growing, however, the payment systems provided by different vendors are not interoperable. This paper presents an interoperable payment protocol for the public transit fare payment system using contactless smart cards. We also present implementation results of a PSAM (Purchase Secure Application Modul...

Dutch banks introduced contactless payments in April 2014, and have been promoting the use of contactless cards since then. Contactless payments are based on the EMV specification, the worldwide standard for contact and contactless transactions. EMV Contact is a well-researched field and many vulnerabilities have been found. Although EMV Contactless is newer and less researched, a few vulnerabi...

Contactless technology is widely used in security sensitive applications, including identification, payment and access-control systems. Near Field Communication (NFC) is a short-range contactless technology allowing mobile devices to act primarily as either a reader or a token. Relay attacks exploit the assumption that a contactless token within communication range is in close proximity, by pla...

Contactless card payments are being introduced around the world allowing customers to use a card to pay for small purchases by simply placing the card onto the Point of Sale terminal. Contactless transactions do not require verification of the cardholder’s PIN. However our research has found the redundant verify PIN functionality is present on the most commonly issued contactless credit and deb...

Contactless technology is widely used in security sensitive applications, including identification, payment and access-control systems. Near Field Communication (NFC) is a short-range contactless technology allowing mobile devices to act primarily as either a reader or a token. Relay attacks exploit the assumption that a contactless token within communication range is in close proximity, by pla...

While gesture interfaces become pervasive, most existing approaches are undesirable for mobile devices because of the high power consumption, or the inconvenience that users need to wear/hold specific sensors. In this paper, we present a contactless gesture recognition system for mobile devices using proximity sensors. A set of infrared signal feature extraction methods and a decision-tree-base...

Compared to a long-stator linear synchronous motor (LLSM), doubly fed (DFLM) exhibits two distinct advantages for high-speed maglev application: 1) it has additional degrees of freedom with both the frequency and phase angle mover improve its control accuracy dynamic responses 2) can use slip power feed contactlessly directly. In order achieve propulsion, levitation, contactless transfer throug...