Abstract: A method and apparatus for secure generation of a short-term key SK for viewing information content in a Multicast-broadcast-multimedia system are described. A short-term key is generated by a memory module residing in user equipment (UE) only when the source of the information used to generate the short-term key can be validated. A short-term key can be generated by a Broadcast Access Key (BAK) or a derivative of BAK and a changing value with a Message Authentication Code (MAC) appended to the changing value. A short-term key (SK) can also be generated by using a private key and a short-term key (SK) manager with a corresponding public key distributed to the memory module residing in the user equipment (UE), using a digital signature.

Abstract: The invention includes several embodiments of a device for recording electrical activity, particularly the electrical field, from nerve, particularly brain, tissue slices. The device is preferably used for the testing or screening of the effect of physiologically active compounds on the electrical activity of brain tissue slices, which is either electrically evoked or spontaneously occurring. Thus, the invention also includes methods for testing or screening using the device in this manner, for example, to identify compounds that can enhance long term potentiation.

Abstract: Systems and methods of securing wireless communications between a network and a subscriber station are disclosed. One embodiment creates authentication triplets due to expire after a certain amount of time such that they may not be used indefinitely by an attacker who intercepts them.

Abstract: Systems and methods of securing wireless communications between a network and a subscriber station include inserting a marker denoting an encryption type within a random value used for authentication, calculating a first session key and a first response value as a function of the random value, then calculating a second session key and a second response value as a function of the random value, first session key and first response value. The two levels of session keys and response values may be used by upgraded subscriber stations and network access points to prevent attackers from intercepting authentication triplets.

Abstract: An acoustic channel is used for fault diagnosis, repair, and upgrades. Remote diagnosis uses self-test data encoded into sound waves. Repair data and upgrades are also encoded and transmitted as sound waves.

Abstract: Apparatus and method for authentication is disclosed. In one embodiment, an apparatus for performing authentication using removeably coupled external authentication module comprises a module configured to receive the authentication module. The authentication module is configured to generate authentication information. The module may comprises an input unit configured to receive and couple the authentication module, and an output unit configured to receive the authentication information from the authentication module and to transmit the authentication information.

Abstract: Apparatus and method for provisioning an access key used for a controlled access broadcast service is disclosed. In one aspect, a method for secure processing in a device that securely stores a secret key comprises receiving a plurality of challenges from a network, generating a plurality of ciphering keys based on the secret key and the plurality of challenges, and generating an access key based on the plurality of ciphering keys.

Abstract: Power saving method is achieved by weakly holding a signal line in its last in time state, which is responsive to and may be overcome by the state of an external signal. During sleep mode, the weakly held signal line state tracks and holds the external signal using alternatively a controllable weak pull-up or pull-down device, such that weakly held state may be driven to a different state by the external driving signal with slight power consumption. When sleep mode is off, the keeper function is disabled and the signal line maybe driven alternatively internally or externally depending upon the state of an enable line.

Abstract: A computer based system for the real time deployment of a plurality of individual human resource units (employees) that does not require the constant attention of a supervising staff member. Employees interact with input devices at their work location throughout the day to receive their assignments, breaks, lunches, and other information. Managers make scheduling and deployment decisions within the system and are provided with information as to how these changes will impact the day's operation.