Abstract: Methods and apparatuses are provided for facilitating data access controls in peer-to-peer or other similar overlay networks. A peer node storing a data object may receive a request for access to the stored data object, and may locate in the network an access control list associated with the data object using a routing mechanism included in the data object. The peer node may determine whether the requested access is authorized based on the access control list, and may grant or deny access based on the determination. A peer node storing an access control list may receive a request from a peer node storing a data object for information relating to access controls associated with the data object. The peer node storing the access control list may then send the requested information relating to the access controls associated with the data object.

Abstract: Disclosed is an apparatus and method to perform a pairing process with a limited input wireless device. A host device includes a transceiver and a processor. The processor may be configured to execute instructions to: receive from the transceiver a pairing process request from the limited input wireless device, wherein the pairing process request includes a private code based upon a physical user action implemented with the limited input wireless device; and implement a pairing process to validate the limited input wireless device for a particular host device function associated with the private code.

Abstract: An apparatus for wireless communications includes a processing system. The processing system is configured to receive an input sound stream of a user, split the input sound stream into a plurality of frames, classify each of the frames as one selected from the group consisting of a non-speech frame and a speech frame, determine a pitch of each of the frames in a subset of the speech frames, and identify a gender of the user from the determined pitch. To determine the pitch, the processing system is configured to filter the speech frames to compute an error signal, compute an autocorrelation of the error signal, find a maximum autocorrelation value, and set the pitch to an index of the maximum autocorrelation value.

Abstract: Various methods of authenticating an access terminal are presented in the case where the access terminal is roaming within a visited network. An access terminal sends a device authentication message to a visited validation server or a home validation server, where the device authentication message includes an access terminal identifier and authentication data generated at least in part using the validation key. In some embodiments, the authentication data may include a digital signature by a validation key associated with the access terminal identifier. Such a signature can be authenticated by either the visited validation server or the home validation server. In other embodiments, the authentication data may include an access terminal authentication token sent to the visited validation server.

Abstract: Disclosed is an apparatus and method to detect vehicle theft. In one embodiment, a processor may be configured to execute instructions to: receive a vehicle detection signal from a vehicle detector; determine whether a vehicle is present or absent based upon the vehicle detection signal; establish an authentication credential after the vehicle is determined to present; and validate the authentication credential to indicate validated parking. If the vehicle is determined to be absent and an authentication credential to un-park the vehicle has not been validated, a notification action may be transmitted to appropriate personnel to indicate that the vehicle has been moved or un-parked without proper authentication.

Abstract: A method of position clustering includes maintaining a set of clusters by storing a rectangular boundary of each cluster in the set of clusters, a centroid within each cluster, and a number of the points within each cluster. The method further includes adding a point to a cluster in the set of clusters when the cluster bounds the point by adjusting the rectangular boundary of the cluster, the centroid within the cluster, and the number of the points within the cluster.

Abstract: An apparatus for wireless communications includes a processing system. The processing system is configured to receive an input sound stream of a user, split the input sound stream into a plurality of frames, classify each of the frames as one selected from the group consisting of a non-speech frame and a speech frame, determine a pitch of each of the frames in a subset of the speech frames, and identify a gender of the user from the determined pitch. To determine the pitch, the processing system is configured to filter the speech frames to compute an error signal, compute an autocorrelation of the error signal, find a maximum autocorrelation value, and set the pitch to an index of the maximum autocorrelation value.

Abstract: Access by a mobile station to a femto access point (FAP) of a wireless communication system is controlled by an enforcement point in response to mobile station authorization data provided from a storage point that is remote from the FAP. The authorization data is provided in response to FAP authentication data. The authentication data may include a FAP identifier and a message authenticator that the FAP generates by hashing shared secret information. The storage point may provide the authorization data in response to determining that the message authenticator is a hash of the shared secret information.

Abstract: Disclosed is a method for user identity authentication for a peer device joining a peer-to-peer overlay network. In the method, a credential server of the overlay network receives a registered user identity from a joining peer device. The credential server verifies the registered user identity with an identity provider. Upon receiving, at the credential server, successful verification of the registered user identity from the identity provider, the credential server issues to the joining peer device a signed certificate for use by an authenticated peer device in the overlay network to authenticate the registered user identity of the joining peer device, wherein the signed certificate is signed by a private key of the credential server.

Abstract: Bit reductions in program instructions are achieved by determining the set of bit patterns in bit locations of the instructions. If only a subset of bit patterns is present in the instructions, they may be represented by an index value having a smaller number of bits. The index value may be substituted into the instruction and later used in decoding by referencing a corresponding bit pattern in a lookup table. The bit-reduction in the instruction makes way for supplemental data bits which may then be embedded.

Abstract: Systems and methods for establishing secure communications between two network elements through a trusted intermediary when no direct communication path is available. Separate secure communication links are established between the network elements and the trusted intermediary to facilitate secure end to end communication.

Abstract: A confidentiality preserving system and method for performing a rank-ordered search and retrieval of contents of a data collection. The system includes at least one computer system including a search and retrieval algorithm using term frequency and/or similar features for rank-ordering selective contents of the data collection, and enabling secure retrieval of the selective contents based on the rank-order. The search and retrieval algorithm includes a baseline algorithm, a partially server oriented algorithm, and/or a fully server oriented algorithm. The partially and/or fully server oriented algorithms use homomorphic and/or order preserving encryption for enabling search capability from a user other than an owner of the contents of the data collection. The confidentiality preserving method includes using term frequency for rank-ordering selective contents of the data collection, and retrieving the selective contents based on the rank-order.

Abstract: Methods and systems for determining the suitability of information to be received by a mobile client are disclosed. For example, an exemplary method may includes identifying a set of location history information by the mobile client, updating a user profile by the mobile client based on the location history information, and displaying/storing target information on the mobile client based on the updated user profile.

Abstract: Systems and methods are described that desynchronize a video to be protected, thereby creating one or more digitally fingerprinted videos. In one implementation, a video to be protected is temporally desynchronized and spatially desynchronized. A fingerprinted copy of the video, as modified by the temporal and spatial desynchronizations, is created.

Abstract: Bit reductions in program instructions are achieved by determining the set of bit patterns in bit locations of the instructions. If only a subset of bit patterns is present in the instructions, they may be represented by an index value having a smaller number of bits. The index value may be substituted into the instruction and later used in decoding by referencing a corresponding bit pattern in a lookup table. The bit-reduction in the instruction makes way for supplemental data bits which may then be embedded.

Abstract: Systems and methods are described that desynchronize a video to be protected, thereby creating one or more digitally fingerprinted videos. In one implementation, a video to be protected is temporally desynchronized and spatially desynchronized. A fingerprinted copy of the video, as modified by the temporal and spatial desynchronizations, is created.