Abstract: A point of sale device including an LCD display, a contactless payment antenna arranged in propinquity to the LCD display, LCD control circuitry and contactless communication circuitry associated with the contactless payment antenna, the LCD control circuitry and the contactless communication circuitry operating at least partially in time coordination with each other in order to prevent interference therebetween.

Abstract: A secure data entry device including a housing, tamper sensitive circuitry located within the housing and tampering alarm indication circuitry arranged to provide an alarm indication in response to attempted access to the tamper sensitive circuitry, the tampering alarm indication circuitry including at least one conductor, a signal generator operative to transmit a signal along the at least one conductor and a signal analyzer operative to receive the signal transmitted along the at least one conductor and to sense tampering with the at least one conductor, the signal analyzer being operative to sense the tampering by sensing changes in at least one of a rise time and a fall time of the signal.

Abstract: A system processes a request by a customer to pay a transaction amount, using the customer's account, for a transaction between the customer and a merchant, to provide a payment to an account of the merchant. The transaction incorporates use of a mobile wireless device operated by the customer to provide identification information of the customer's account to an authentication server. A payment server coupled to the authentication server and the merchant passes merchant communications to the authentication server. The authentication server receives the transaction amount from the merchant and receives customer account information from the customer's wireless mobile device, and processes the transaction and account information and, if authenticated, routes the payment transaction to the payment server for payment to the merchant's account.

Abstract: A magnetic stripe reader assembly for a point of sale terminal is provided. In some embodiments, the magnetic stripe reader assembly includes a holder configured to retain a magnetic head within the terminal and restrict access to electronic components.

Abstract: A data entry device including a housing formed of at least two portions, data entry circuitry located within the housing, at least one case-open switch assembly operative to sense when the housing is opened and tamper indication circuitry operative to receive an input from the at least one case-open switch assembly and to provide an output indication of possible tampering with the data entry circuitry located within the housing. The at least one case-open switch assembly includes an arrangement of electrical contacts arranged on a base surface and a resiliently deformable conductive element, which defines a short circuit between at least some of the arrangement of electrical contacts only when the housing is closed.