Abstract: Systems, methods, and devices relating to determining an introduction portion in a video program are described herein. A method may determine first and second hard-matching pairs of video segments in first and second video content such that video fingerprints of the first hard-matching pair match and video fingerprints of the second hard-matching pair also match. The method may classify a third pair of video segments in the first and second video content, sequentially between the first and second hard-matching pairs, as a soft-matching pair of video segments of an introduction portion. The method may use the classification of the third pair of video segments as a soft-matching pair to determine a model configured to determine that a pair of video segments in two video content items are a soft-matching pair of video segments of an introduction portion.

Abstract: Systems, methods, and devices relating to determining an introduction portion in a video program are described herein. A method may determine first and second hard-matching pairs of video segments in first and second video content such that video fingerprints of the first hard-matching pair match and video fingerprints of the second hard-matching pair also match. The method may classify a third pair of video segments in the first and second video content, sequentially between the first and second hard-matching pairs, as a soft-matching pair of video segments of an introduction portion. The method may use the classification of the third pair of video segments as a soft-matching pair to determine a model configured to determine that a pair of video segments in two video content items are a soft-matching pair of video segments of an introduction portion.

Abstract: Systems, methods, and devices relating to determining an introduction portion in a video program are described herein. A method may determine first and second hard-matching pairs of video segments in first and second video content such that video fingerprints of the first hard-matching pair match and video fingerprints of the second hard-matching pair also match. The method may classify a third pair of video segments in the first and second video content, sequentially between the first and second hard-matching pairs, as a soft-matching pair of video segments of an introduction portion. The method may use the classification of the third pair of video segments as a soft-matching pair to determine a model configured to determine that a pair of video segments in two video content items are a soft-matching pair of video segments of an introduction portion.

Abstract: A method and apparatus for providing a key for secure communications is provided herein. During operation a node wishing to join a network, will authenticate with an authentication server and then derive a pairwise key (e.g., a Pair-wise Transient Key (PTK)) used for encryption of unicast traffic. The node will also create its own group transient key (GTK) for use in encrypting multicast or broadcast traffic. Once the GTK is generated, it will be provided to an authenticator as part of an association request message.

Abstract: A method and apparatus for utilizing multiple group keys for secure communications among nodes is provided herein. During operation an access point will utilize a plurality of Medium Access Controller (MAC) Addresses, one for each service provided. Each MAC address has an associated lookup table containing encryption keys. From the perspective of nodes using a first service, group traffic sent using the MAC address for the second service is ignored, and no decryption attempt is made. Likewise, group traffic sent using the MAC address for the first service is ignored for group traffic using the second service.

Abstract: A method and apparatus for mutual authentication of a first and a second node is provided herein. During operation the first node sends a first authentication message to the second node comprising information needed for the second node to authenticate the first node and information needed by the second node for the second node to be authenticated by the first node. A second authentication message is received from the second node comprising information needed by the first node for the first node to be authenticated by the second node and information needed for the first node to authenticate the second node. Because the first and the second authentication messages comprise information needed for both the first and the second node to authenticate each other, messaging within the network is greatly reduced.

Abstract: Multi-mode link adaptation in a wireless communication network where a station calculates a current link quality, a minimum link quality, and an excess link quality based upon the current link quality and the minimum link quality to determine an operating mode that is related to the success or failure of recent transmissions from the station. If the calculated excess link margin is lower than a first threshold, the station operates in a first mode, otherwise in another mode. In any case, the station selects the link rate for a new transmission from the station based upon the selected mode.

Abstract: A wireless local area network system (100) supporting mobile radio telephony reduces the time to complete an authenticated handover from one access point (104) to another (108) by a mobile station (102) by performing some of the steps normally performed upon leaving one access point while still associated with that access point. More particularly, the mobile station causes a cryptographic key (204) to be preestablished (212) for use when handing over to a new access point. The cryptographic key is derived at the mobile station, and is also derived in the WLAN infrastructure and stored until the mobile station initiates a handover.