Abstract: The invention provides systems and methods for using radio frequency (RF) transponders interrogators for storing and retrieving data files. In one embodiment, the RF interrogator comprises a microcontroller module that retrieves a data file from a buffer memory space and breaks up the data file into multiple data packets, each data packet comprising a data file identifier and a sequence number. The present invention also provides a data storage device that comprises an RF transponder and a microcontroller that is in communication with the transponder via the external memory interface. In one embodiment, the transponder receives data over an RF broadcast, assigns an address to the data, and sends the data to the microcontroller via the external memory interface for storage at the assigned address.

Abstract: A communication system is provided in which a client device can communicate with a server via any one of plural communication networks, such as a WWAN, a WLAN, a wired LAN, a personal area network (e.g., Bluetooth), and any other networking architecture. More specifically, the communication client comprises a connection manager that is adapted to determine availability of each the plural communication networks to communicate data between the client and the server, select one of the communication networks from the available ones of the plural communication networks in accordance with predetermined preferences, and establish a connection with the selected one of the communication networks. The client may further comprise a client application. The connection manager provides a notification message to the client application upon establishment of the communication link. The client application then communicates data to and from the server via the selected one of the communication networks.