At&t Intellectual Property I, LP

At+t Corp.

At&t Bell Laboratories

At7t Intellectual Property I, L.p.

Paul D Bartoli

Richard Williams

Stephen J Griesmer

Bruce E McNair

Yzhak Ronen

Gideon Lidor

Jean Tessier

Playlists comprising media objects can be modified by adding personalized supplemental media objects that can provide a customized entertainment experience. As an example, an application can overlay a playlist on a consumer's device and can call a user-configurable rules engine that can select a supplemental media object (e.g., a pre-recorded and/or dynamically synthesized media file) that is to be played with the media objects. In one example, the supplemental media object can be associated with a user-selected voice personality and can be streamed from a network storage device via a communication network coupled to the consumer device.

User configurable radio

A method and apparatus for authenticating transactions accomplished over a data network utilizes a 'cookie' containing both static information (user-identifying information) and dynamic information (transaction-based information). The transaction-oriented dynamic information portion comprises a random number and a sequence number, the latter tracking the number of billing transactions conducted by the user associated with the account number. The cookie, sent to the user's cookie file upon a previous transaction, is valid for only a single new transaction. A billing server, upon receiving the cookie containing the static and dynamic information portions, identifies the user from the account number in the static portion and accesses from an associated database the expected random number and sequence number that the billing server last sent to that user in the transaction-oriented dynamic portion. If the expected dynamic portion matches the received dynamic portion, the user is authenticated to proceed with the current transaction.

Method and apparatus for billing for transactions conducted over the

Secure teleconferencing between three or more parties is achieved by receiving encrypted information streams from each of the parties to the conference. The encrypted information streams are received in decryption/re-encryption units co-located with a conference bridge established in a telecommunication switching system in a public switched telephone network central office. The decryption/re-encryption units decrypt the information streams and then re-encrypt those information streams in accordance with a common conference encryption algorithm. The re-encryption processes for the information streams are synchronized so that the re-encryption circuitry for all information streams are in the same cryprostate at all times during the re-encryption procedure. The decryption/re-encryption units are located in secure surroundings to protect the unencrypted information streams present in those units. A gating circuit permits only one of the re-encrypted information streams to be input to the conference bridge at a given time. A circuit which simulates the operation of a silent conferee prevents noise bursts from being sent to the conferees during periods of time when all are silent.

Secure teleconferencing

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Red Bank, NJ, United States of America

Paul D Bartoli