The present disclosure discloses a data transmission method and apparatus. User equipment (UE) measures and transmits a transmission delay to a group communication service application server (GCS AS), or the GCS AS itself determines a transmission delay, so that the GCS AS may determine, according to the transmission delay, a time of sending a packet on a multicast path or a unicast path. Therefore, a problem of out of order of packets or a loss of a packet due to a transmission delay is resolved, and continuity of a communication service is maintained.

A process distributing video streams to a plurality of addressees, comprising a marking step comprising adding at least one visual element to a video stream, which marking step is applied to an original video stream common to all the addressees and which is personalized for each addressee by addition of a visual element specific to the addressee that allows rapid visual identification of the addressee, wherein the added visual element replaces part of the original video stream that is stored in complementary information on a multimedia server.

An ad in a movie can be a static ad having a position in the movie that cannot be moved, or a dynamic ad having a position in the movie that can be changed. When a viewer wishes to skip a portion of the movie containing the ad, the playback system determines whether the ad is static or dynamic. If the ad is static, only the portion of the movie preceding the static ad can be skipped; the ad is unskippable. This technique is referred to as bounceback since the end of the skip bounces back to the start of the static ad. If the ad is dynamic, it is moved to after the end of the skip. This technique is referred to as slip-ad since the ad slips to later in the movie. When a movie has multiple ads, some can be static and some can be dynamic.

An ad is placed in a movie, by analyzing inherent characteristics of the movie, analyzing viewed characteristics of the movie, analyzing viewer characteristics of a viewer of the movie, obtaining advertiser preferences for placement of the ad in the movie, determining costs of placing the ad in the movie based on the inherent characteristics of the movie, the viewed characteristics of the movie, the viewer characteristics and the advertiser preferences, and placing the ad in the movie in accordance with the inherent characteristics of the movie, the viewed characteristics of the movie, the viewer characteristics, the advertiser preferences and the determined costs.

A method and apparatus for brokering the enablement of the communication of encrypted media programs from a plurality of independent broadcasters to a plurality of receivers is disclosed. The system makes use of a pairing key for each provided service, which is differently encrypted by a pairing server and by the broadcaster providing the service. The encrypted versions of the pairing key are decrypted in a first receiver module using information known to the pairing service but not the broadcaster and in a second receiver module using information known to the broadcaster. The pairing key is used to cryptographically bind the first and second receiver modules.

A video on demand system in the context of the Internet, for video rentals. A user accesses an on-line store to rent a video program or movie. The rental is for a limited time (such as 30 days) and within that thirty days, the video program or movie can only be viewed for a 24 hour time window. The time limits are enforced by the on-line store which maintains a database of each rental transaction and allows supply of the needed keys for decrypting the (encrypted) video or movie only if within the time limits.

The present disclosure relates to a receiving device, a receiving method, a broadcasting device, a broadcasting method, a program, and a link application control system allowing control of receiving device control functions of a link app on the broadcasting side. A link application control system according to a third aspect of the present disclosure includes the broadcasting device that has a supply unit for supplying to the receiving device application control information concerning a link application executable with reception of the contents by the receiving device, and the receiving device that has an application executing unit for executing a link application that may refer to an image of the received contents and change a layout of a screen, and an application control unit for controlling the application executing unit based on the application control information to limit an action of the link application. The present disclosure is applicable to a television broadcasting system.

A method and mechanism for automating user input in an interactive television system. An interactive application is conveyed concurrently with a broadcast programming stream in an interactive television system to a receiver. The interactive application is configured to provide added content to a television viewer upon a request by the viewer. In order to request the display of the available added content, a viewer may provide an indication that the use of a script is desired. Subsequently, a script corresponding to the interactive application is utilized to provide input to the interactive application in lieu of the viewer actively providing the input necessary to display the added content. In addition, a viewer may configure the receiver to indicate default preferences for the use of scripts. The receiver may then utilize a standardized script to provide input to interactive application having added content available for viewing. Further, a corresponding program, interactive application, added content, and script may be received and stored on a mass storage device. Subsequently, the stored material may be retrieved for display and execution.

A method and system of provisioning a set-top box (STB) with a STB provisioning system are provided which include storing STB profile information in a provisioning datastore, receiving a customer order at a service provisioning system, notifying a billing system of the customer order, and notifying a conditional access system of the customer order. The method and system further include storing information from the customer order in a provisioning datastore, notifying a video device manager about the STB, and delivering a cable operator configuration message from the video device manager to the STB, the configuration message being based on information from the provisioning datastore, thereby provisioning the STB without essential involvement of the conditional access system.

Methods and products to deliver at least a portion of an advertisement to a viewer at normal playback speeds after receiving a command from the viewer to fast-forward through an advertisement faster than normal playback speeds is described. In certain embodiments, the invention delivers a portion of the advertisement to be played at normal playback speeds to the viewer: and delivers the remaining portion of the advertisement to be played at a playback speed that is faster than the specified playback speed so that the combination of the portions delivered at normal and faster playback speeds is delivered to the user at the specified playback speed. In some other embodiments, the invention delivers at least a portion of the first advertisement to the viewer at normal playback speeds; and delivers one or more other advertisements to the viewer simultaneously with the first advertisement with the audio information muted based on the specified playback speed.