Abstract: A radio frequency identification tag is made with printed antenna coil integrated on a flexible substrate, and an integrated circuit area of the substrate adjacent the antenna coil for carrying circuit elements. The radio frequency identification tag is designed to be sufficiently robust to withstand the rigors of mail efficiency processing measurement applications.

Abstract: A radio frequency identification tag is made with printed antenna coil integrated on a flexible substrate, and an integrated circuit area of the substrate adjacent the antenna coil for carrying circuit elements. The radio frequency identification tag is designed to be sufficiently robust to withstand the rigors of mail efficiency processing measurement applications.

Abstract: A method for secure electronic information exchange between a sender and a recipient. The method includes generating a message at a first entity, generating a message encryption key, encrypting the message using the message encryption key, wrapping the message encryption key using a key agreement algorithm, generating a Java archive file including the encrypted message, the wrapped message encryption key and cryptographic algorithm code including decryption algorithm and key agreement algorithm code, encoding the Java archive file, embedding the encoded Java archive file in an HTML file, and sending the HTML file as an e-mail attachment to said recipient.

Abstract: A radio frequency identification tag is made with printed antenna coil integrated on a flexible substrate, and an integrated circuit area of the substrate adjacent the antenna coil for carrying circuit elements. The radio frequency identification tag is designed to be sufficiently robust to withstand the rigors of mail efficiency processing measurement applications.

Abstract: A radio frequency identification tag is made with printed antenna coil integrated on a flexible substrate, and an integrated circuit area of the substrate adjacent the antenna coil for carrying circuit elements. The radio frequency identification tag is designed to be sufficiently robust to withstand the rigors of mail efficiency processing measurement applications.

Abstract: A radio frequency identification tag with printed antenna coil integrated on a flexible substrate, and an integrated circuit area of the substrate adjacent the antenna coil for carrying circuit elements. The radio frequency identification tag is designed to be sufficiently robust to withstand the rigors of mail efficiency processing measurement applications.

Abstract: The present invention relates to an electronic identification system comprising one or more transponders which store identification and other information in memory, and readers, which capture information from the transponders and write new information thereto, and in which communications between transponders and readers are accomplished using radio frequency signals. The present invention has attributes which make it particularly useful in automatic fare collection systems, where transponders, typically in the form of thin cards and used as pre-paid tickets, are carried by fare paying passengers to replace printed tickets and eliminate exchange of cash. Specifically the system achieves simultaneous identification of numerous transponders by one reader, permits a reader to selectively program any of many transponders under its control, exhibits fast transaction speed to maximize passenger throughput, and achieves exceptional data storage integrity.