Abstract: A system for deriving benefits from the reception and processing of composite video signals by a hand-held device, such as a smart card. Video signals are modulated with auxiliary data creating composite video signals. The composite video signals are then transmitted to and received by a hand-held device. The auxiliary data is then detected in the modulated video signal by circuitry of the hand-held device. The user receives benefits resulting from the reception of the auxiliary data.

Abstract: A system for deriving benefits from the reception and processing of composite video signals by a hand-held device, such as a smart card. Video signals are modulated with auxiliary data creating composite video signals. The composite video signals are then transmitted to and received by a hand-held device. The auxiliary data is then detected in the modulated video signal by circuitry of the hand-held device. The user receives benefits resulting from the reception of the auxiliary data.

Abstract: A method and system for auxiliary data detection. Data is received on a hand-held device from a display of a signal on a monitor. The signal is visually displayed on the monitor at a frequency. A modulated video signal is received on the hand-held device from a display device. The modulated video signal contains auxiliary data modulated within a video signal in a substantially invisible way. The modulated video signal is demodulated to obtain the auxiliary data. At least one of the data or the auxiliary data is processed to identify a promotional opportunity available through the hand-held device. The user of the hand-held device is notified of availability of the promotional opportunity through the hand-held device.

Abstract: A telecommunications interface system is operably coupled to customer premises termination equipment such as a telephone or facsimile machine for controlling signal transmissions to and from a public or private communication network. The interface system can be incorporated into the termination equipment, or can be contained in a housing that is externally connected between the termination equipment and a wall jack providing access to the telecommunications network. The interface system has a memory device for storing data representative of information such as long distance access codes and service providers. Each access code provides access to a long distance service provided by a service provider. A data processing system is provided that performs data processing functions on data stored in the memory device. The interface system also includes a visual display device for displaying information relating to one of the long distance providers based upon data stored in the memory device.