| Patent application number | Description | Published |
|---|
| 20090183196 | METHODS AND APPARATUS TO REDUCE CHANNEL SWITCHING TIME - Methods and apparatus to reduce channel switching time. A method for channel switching includes bundling entitlement control messages (ECMs) to generate bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, and transmitting the bundled ECMs with the first content channel. An apparatus for channel switching includes key acquisition logic configured to receive bundled ECMs that comprise decryption keys associated with a first content channel and one or more additional content channels, respectively, processing logic configured to receive a request to render a second content channel that is part of the one or more additional content channels, and decryption logic configured to utilize a selected decryption key obtained from the bundled ECMs to decrypt the second content channel. | 07-16-2009 |
| 20090190757 | EFFICIENT BROADCAST ENTITLEMENT MANAGEMENT MESSAGE DELIVERY MECHANISM USING A SCHEDULED DELIVERY WINDOW - Systems and methods include broadcasting an entitlement management message (EMM) in a communication system using a scheduled delivery window. The systems and methods including receiving a EMM broadcast window from a distribution system, listening for the EMM during the EMM broadcast window, and receiving the EMM from the distribution system during the EMM broadcast window. | 07-30-2009 |
| 20090210706 | METHODS AND APPARATUS FOR CONDITIONAL ACCESS OF NON REAL-TIME CONTENT IN A DISTRIBUTION SYSTEM - Methods and apparatus for conditional access of non real-time (NRT) content in a distribution system. A method includes encrypting NRT content with a control word (CW) to generate encrypted NRT content, providing the CW to entitlement control message (ECM) generators, receiving ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and providing the encrypted NRT content and the ECMs for transmission over a distribution network. An apparatus includes a synchronizer configured to provide a CW to ECM generators and receive ECMs from the ECM generators, wherein each ECM comprises a unique encryption of the CW to provide conditional access to the CW, and a management module configured to encrypt the NRT content with the CW to generate encrypted NRT content and provide the encrypted NRT content and the ECMs for transmission over the distribution network. | 08-20-2009 |
| 20100003914 | ENHANCED NOTIFICATION MECHANISM FOR BROADCAST NETWORKS USING BIT-MAP VECTORS - Methods, apparatus, systems and computer program products are defined for enhancing the delivery of overhead notifications in a broadcast network, in particular a broadcast network suitable for wireless device implementation. The broadcast-receiving devices only receive new notification messages, as opposed to receiving all of the currently active notification messages. This is achieved by broadcasting a listing of the currently active notifications versions and having the devices compare the currently active notification versions to the locally stored version(s) to determine which version or versions require capturing. In those aspects in which the broadcast-receiving device is a battery powered wireless device, battery power consumption is minimized because the device only captures active notification messages not currently in device memory, as opposed to all of the currently active notifications. | 01-07-2010 |
| 20100146559 | FEEDBACK BASED BROADCAST SCHEDULING - Systems and methodologies are described that facilitated generating a broadcast schedule of content based on user feedback. Users can provide feedback such as ratings, interest (e.g., like or dislike), comments, reviews, critiques and so on regarding content available on a media distribution system. The feedback can be utilized to determine a schedule or order of content that is delivered via a broadcast mechanism. In addition, users can supply contemporaneous feedback during broadcast. Contemporaneous feedback can be employed to enable dynamic adjustment and/or reconfigurations of the broadcast schedule. | 06-10-2010 |
| 20110072146 | METHOD FOR DELIVERY OF SOFTWARE UPGRADE NOTIFICATION TO DEVICES IN COMMUNICATION SYSTEMS - Systems and methodologies are described that facilitate providing software upgrade notifications to user devices that utilize unicast and multicast communication techniques in a wireless communication environment. Bandwidth and power consumption is minimized by permitting determination to be made regarding whether a given software update is relevant to the user device prior to attempting a download or receiving a notification thereof Additionally, evaluation of version number and software identity facilitates determining whether to employ a unicast software check-up protocol or a multicast software check-up protocol. Software upgrade information may also be transmitted over a multicast channel for a predetermined time period, after which a user device may initiate a unicast check-up protocol to receive software upgrade information. | 03-24-2011 |
| 20110173249 | SYSTEMS AND METHODS FOR MONITORING AND TRACKING BROADCAST SERVICE POINT USAGE - Systems and methods are described for providing content using distributed broadcast access points that include wide area broadcast interfaces for receiving content and local and/or personal area network interfaces for communicating content to client devices. In an embodiment, a system transmits usage logging notifications to one or more broadcast access points. The broadcast access points log usage data regarding the usage of the broadcast access points by client devices and/or content accessed via the broadcast access points. The logged data is then optionally used to customize one or more channels of content. Different broadcast access points may have access to different channels of content. A given channel of content optionally includes content aggregated from a plurality of different sources. | 07-14-2011 |
| 20110237257 | CELLULAR NETWORK ENERGY SAVING - Various arrangements for managing wireless network communication are described. Two cells using different radio access technologies (RATs), such as a 3G cell and a 4G cell, may provide overlapping coverage. A first cell using a first RAT, under certain circumstances, may be permitted to enter a powered down state such that less power is consumed. User equipment may communicate with the cell using the second RAT as the preferred network and only communicate with the cell using the first RAT when a service available through the first RAT but not the second RAT has been requested. Upon a request from the second cell, the first cell may enter a powered up state. | 09-29-2011 |
