Abstract: A method for delivering encrypted content to a subscriber terminal on-demand through a communication network is provided. The method begins when SRM receives a request for content from the subscriber terminal. In response to the request, the SRM directs a video server to transmit the content as an unencrypted transport stream to an encryptor. The packets in the unencrypted transport stream include a header with a destination address associated with the subscriber terminal. The encryptor encrypts the content in the unencrypted transport stream to generate an encrypted transport stream. The encryptor also inserts in the packet headers of the packets in the encrypted transport stream the destination address associated with the subscriber terminal obtained from the packet headers in the unencrypted transport stream. Finally, the encrypted transport stream is transmitted to the subscriber terminal over the communication network.

Abstract: Disclosed herein are a method and device for transmitting digital content. A selection of at least one device authorized to receive digital content is detected. It is identified whether each selected device contains a session key that corresponds to a local session key. Digital content is transmitted to each device whose session key corresponds to the local key. Digital content is prevented from transmission to unselected devices not having a corresponding session key.

Abstract: A streaming video server generates a virtual file system that includes virtual addresses of a plurality of encrypted segments of a plurality of video programs at each of a plurality of bitrates, without storing the plurality of encrypted segments in persistent storage. A request is received from a client device to access a selected one of the plurality of video programs via a request to access the virtual file system. The plurality of encrypted segments of the selected one of the plurality of video programs are generated at a selected bitrate, in response to the request.

Abstract: A communication system 100 is used to manage content includes a user device with a storage device 306 and a content processing system 102 in communication with the storage device and communicating content to the storage device, generating a conditional access packet, communicating the conditional access packet to a storage device. The user device 112 receives the content and the conditional access packet and controls the storage device to manage the content in response to the conditional access packet.

Abstract: The exemplary embodiments of the method and system according to the present invention provide a system and method for controlling access to audiovisual content such as television shows, video-on-demand services or streaming video which can be delivered by cable, satellite, wired or wireless networks, cell phones, the Internet, etc. More particularly, the present invention provides a capability to define certain criteria which can be used to restrict access to content based on combinations of various parameters including, but not limited to, time of day, day of the week, type of content, source of content, content display device, etc. These criteria may also be provided by data storage arrangements or a network, and access restrictions specified by such criteria can be associated with a plurality of display devices.

Abstract: A method of managing the processing of a digital broadcast transport stream by a multimedia unit identified by a personal identifier. The multimedia unit being connectable to a security module associated to the multimedia unit and/or a server through an IP-connection with a return path. The transport stream comprising scrambled content packets and conditional access messages that are necessary for descrambling the content packets. The method comprises: sending the conditional access messages from the multimedia unit to either the server or the security module; verifying the authentication of the multimedia unit and/or the validity of access rights allocated to the multimedia unit; if the authentication fails, preventing any further processing of the conditional access message; securely obtaining, at the multimedia unit, the control data corresponding to the conditional access messages; and descrambling the audio/video/data content packets using the control data at the multimedia unit.

Abstract: A mobile communication terminal and a method of restricting harmful information thereof are provided. The mobile communication terminal includes a data judgment module which judges whether to restrict digital content by comparing content information included in a packet of the digital content with viewing restriction information; and a control unit which controls whether to display the digital content in accordance with a result of the judgment of the data judgment module. The method includes receiving digital content that is transmitted in a unit of a packet; judging whether viewing of the digital content is permitted by comparing content information included in the packet with viewing restriction information; and preventing a display of the digital content if it is judged that the viewing of the digital content is not permitted.

Abstract: A computing device, in a video content delivery network, intercepts requested video content prior to delivery of the requested video content to a customer premise device of the network, and receives subscription and authentication information of a customer associated with the customer premise device. The computing device receives video content provider information, and validates the requested video content based on the subscription and authentication information and the video content provider information. The computing device receives capability information associated with the customer premise device, and receives bandwidth information associated with the network. The computing device determines a quality of video content, to provide to the customer premise device, based on the customer premise device capability information and the network bandwidth information, and provides, to the customer premise device, video content with the determined quality.

Abstract: 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.

Abstract: Systems and methods for generating domain-compliant image data. Domain-specific usage rights may be evaluated. The domain-specific usage rights may be associated with the transfer of particular encoded image data to a particular computing system other than the computing system. The domain-specific usage rights may specify maximum allowable spatial frequency content of the particular encoded image data. Domain-compliant image data may be generated by removing particular disallowable spatial frequency content from the encoded image data prior to transfer to the particular computing system.

Abstract: Provided are a video display device and a method of controlling the same. The method includes: obtaining an uncompressed audio-visual (AV) content; playing the uncompressed AV content through the display unit; obtaining content information of the uncompressed AV content on the basis of a content section of the uncompressed AV content; obtaining content change time information and enhanced service information on the basis of the content information; and determining a delay time for obtaining the next content information on the basis of the content change time information.

Abstract: An iTV user interface includes a navigable menu area through which a user can select from among a variety of services and a content display area in which formatted data associated with a selected menu service are displayed to the user. The formatted data is displayed in a rotating or ticker fashion having both a passive mode, in which the formatted data is displayed in a sequence independent of any selection operations by a television viewer, and active mode, in which the formatted data is displayed in a sequence that depends on selection operations by the television viewer. Advertisements and/or promotions may be interspersed among the content items. The navigable menu area and the content display area may be displayed to the viewer at the same time as television programming is displayed on the television.

Abstract: A personal base station (PBS) having wireless video capability. The PBS authenticates a mobile device within range for cellular services, and authenticates the user for a level of service for cable television. The PBS operates in accordance with a dual-purpose subscriber identity system (SIS) includes a subscriber mobile identity component (SMIC) and a video security component (VSC) such that the cellular and television services can be authenticated. Mobile devices incorporating the disclosed innovations, as well as the PBS, can access video content from a cable television provider through any available broadband link, regardless of the mobile device's physical location.

Abstract: A module coping with conditional access broadcasting in the disclosure includes an interface detachable from a receiver, which can receive digital broadcasting including conditional access broadcasting, for acquiring a transport stream produced based on the digital broadcasting, a descrambler that descrambles data included in the transport stream, a loudspeaker that outputs sound, and a controller that detects emergency warning information included in the transport stream and controls the loudspeaker to output sound related to the emergency warning information in response to the detection of the emergency warning information.

Abstract: A sales device 100a includes: a first acquisition unit 108a acquiring a request for purchasing content from a user; a second acquisition unit 109a acquiring first identification information for a service, from a medium carrying the first identification information; a judgment unit 112a judging whether or not the request is received before a period during which the content is purchasable in a form of a packaged medium, and judging, by using the first identification information, whether or not the user is entitled to the service; an encryption unit 105a, when the request is received before the period and the user is entitled to the service, encrypting the content to generate encrypted content usable only on a terminal device that the user has; and a transmission unit 103a transmitting the encrypted content to the terminal device before the period.

Abstract: The disclosure provides an information transmission method, system and data card, wherein the method comprises: a sender scrambling original information in a predetermined scrambling way, and sending scrambled information to a receiver; the receiver receiving the scrambled information, and descrambling the scrambled information in a predetermined descrambling way to obtain the original information, wherein the predetermined scrambling way corresponds to the predetermined descrambling way. In accordance with the disclosure, contents to be transmitted are scrambled and the scrambled contents are sent to the receiver, and the receiver can restore the transmitted contents by performing descrambling according to the scrambling way used by the sender. The disclosure can avoid the transmitted contents from being monitored, as well as avoid the keys from being stolen; therefore, the security of the transmitted contents is effectively improved.

Abstract: A system for securely providing adaptive bit rate streaming media content on-demand may include a security sever of a program distributor that selects, based on a received authorized request, which of a differently encrypted stored versions of a “special segment” of the requested program to deliver to the receiving device during the transmission of the requested program. The selection may be based on a pseudo-random selection process per request for the program based on an identifier of the request associated with the remote control device. The selection of which of the differently encrypted stored versions of the “special segment” of the ordered program to deliver may be based on the current session. The secure remote then sends to the receiving device the correct decryption key for the receiving device to decrypt the particular encrypted version selected of the “special segment” to be sent to the receiving device.

Abstract: Systems and methods for efficiently distributing digital cinema files from a server to a theater are disclosed. The systems and methods may comply with DCI requirements. A server updates an original composition playlist, updates a track file associated with the updated composition playlist, and distributes the updated composition playlist and updated track file to one or more theaters over a communications network. The theater is configured to store the updated track file at a storage containing copies of all track files associated with the updated composition playlist and update the theater's original composition playlist to the updated composition playlist. The server may have a database configured to track the composition playlists and associated track files present in each theater in the system.

Abstract: A system for securely providing adaptive bit rate streaming media content on-demand may include a security sever of a program distributor that selects, based on a received authorized request, which of a differently encrypted stored versions of a “special segment” of the requested program to deliver to the receiving device during the transmission of the requested program. The selection may be based on a pseudo-random selection process per request for the program based on an identifier of the request associated with the remote control device. The selection of which of the differently encrypted stored versions of the “special segment” of the ordered program to deliver may be= based on the current session. The secure remote then sends to the receiving device the correct decryption key for the receiving device to decrypt the particular encrypted version selected of the “special segment” to be sent to the receiving device.

Abstract: Systems and methods for implementing a Transport I/O system are described. Network encrypted content may be received by a device. The device may provide the network encrypted content to a secure processor, such as, for example, a smart card. The secure processor obtains a network control word that may be used to decrypt the network encrypted content. The secure processor may decrypt the network encrypted content to produce clear content. In embodiments, the secure processor may then use a local control word to generate locally encrypted content specific to the device. The device may then receive the locally encrypted content from the secure processor and proceed to decrypt the locally encrypted content using a shared local encryption key. The Transport I/O system ensures the protection of the network control word by maintaining the network control word on the secure processor.

Abstract: A video distribution network includes a distribution plant and a first bulk encryption device connected to the distribution plant, wherein the bulk encryption device outputs a first encrypted video service stream to the distribution plant via an internet protocol (IP) interface.

Abstract: Methods and apparatus for controlled distribution of program content are described where program content for certain regions may be selectively blocked. The described methods and apparatus allow content distribution to authorized regions while providing control to the content provider to effectively block program content delivery to regions not entitled to receive the program content.

Abstract: An interactive television program guide for supporting programming blackouts is provided. In some embodiments, the interactive television program guide may unschedule the reminding and recording of blacked-out programs that have been scheduled by a user for reminding or recording. In some embodiments, the interactive television program guide may prevent a user from scheduling blacked-out programs for reminding and recording. In some embodiments, the interactive television program guide may prevent a user from ordering blacked-out pay-per-view programs. In some embodiments, the interactive television program guide may provide blackout information in information displays. In some embodiments, the interactive television program guide may provide replacement media for blacked-out programs.

Abstract: A system for monitoring the quality of DRM-protected multimedia data streams, the system comprising at least one computer having a network connection to receive at least one said DRM-protected multimedia data stream, program memory, working memory, and a processor coupled to said program memory, working memory, and wherein said program memory stores processor control code for a media player for said multimedia data stream and code to control said processor to: play said DRM-protected multimedia data stream to provide at least a decrypted video data output stream for display on a monitor; capture still image data from a succession of still images from said video data output stream; process said still image data to detect greater than a threshold difference between at least two of said still images; and output fault data identifying a potential video quality fault responsive to absence of detection of said greater than a threshold difference.

Abstract: Embodiments of the present invention disclose a method and an authentication server for verifying an access identity of a set-top box, and relate to the field of communication technologies The method of the present invention includes: receiving a verification request message sent by a set-top box, where the verification request message carries first identity cipher text information of the set-top box, software version information of the set-top box, and a user serial number, and the first identity cipher text information is generated by the set-top box according to identity information of the set-top box by using a first encryption algorithm; obtaining the identity information of the set-top box from the first identity cipher text information according to the user serial number by using a preset first decryption algorithm; and verifying the identity information of the set-top box according to the software version information.

Abstract: A method for authorising access to multimedia digital programmes with access control and broadcast by a broadcast server (11) to descrambling devices (13) through a communications network, in which access request messages are transmitted for a reduced period of time, to a scrambled multimedia digital programme from descramblers (13) to a licence server (12); comparison in the licence server (12) of the request messages received with a specific trust level associated with a predetermined credit level stored in the licence server (12) and in which each customer is assigned a credit level; if the comparison is positive, transmission of an access authorisation and descrambling key from the licence server (12) to the descrambler (13), and retransmission of the authorised request messages received to the broadcast server (11), when the multimedia digital programme is being played or has finished.

Abstract: An enhanced cable card device is described that operates in host devices without requiring an out-of-band data channel. One embodiment includes a broadcast receiver for receiving a broadcast signal, a processor for coordinating processing in the cable card, a memory for storing data normally received by the cable card over an out-of-band signal, an in band data receiver for receiving an in band data signal, and a control program running on the processor to signal reception of an out-of-band signal to a host device electrically connected to the cable card. In addition, the control program processes data from the memory and provides processed output data to the host device simulating data normally received over an out-of-band data channel, and the cable card allows the host device to operate normally without an out-of-band receiver.

Abstract: A method for switching between minor channels for digital televisions is disclosed. The method includes determining whether a minor channel is in a non-signal state, analyzing information of a major channel, to which the minor channel in the non-signal state pertains, if the minor channel is in the non-signal state, followed by obtaining information of minor channels pertaining to the major channel, and selecting other minor channels excluding the minor channel in the non-signal state based on an analysis of the information of the minor channels to sequentially determine whether the selected minor channels are in a signal state, followed by switching from the minor channel in the non-signal state to a minor channel in the signal state if a minor channel in the signal state is present.

Abstract: A method of modifying the output of an output device is provided. A first code, associated with a first recipient party, is received and used to generate, within the output device, a second code, the second code containing encoded data identifying the first recipient party and instructions for activating an additional functionality of the output device. The additional functionality is activated in accordance with the instructions contained in the second code. The output of the output device is modified according to data encoded in the second code, to encode a third code in the output of the output device, the third code including an ID code associated with the first recipient party.

Abstract: Methods and apparatus for collecting program viewership information are described. A viewership monitoring module is provided access to decrypted program content allowing program information to be recovered without having to capture output program content using a microphone or camera. The monitoring module is loaded onto a secure device, e.g., a home network device, such as a router used to deliver content to a secure playback device. Alternatively the secure device which performs the monitoring maybe the secure playback device. Since a user of the secure device or a company implementing the viewership monitoring process loads the monitoring module onto the secure device, the network used to deliver the secure content need not be informed of which network customers are contributing to the viewership information which is being collected.

Abstract: Various arrangements for encrypting multiple television channels are presented. A first television channel of a plurality of television channels to be protected via a first entitlement control message (ECM) using a first encryption scheme may be designated. The plurality of television channels may be transmitted using a single transponder stream. A second television channel of the plurality of television channels to be protected via a second ECM encrypted using a second encryption scheme while the first television channel of the plurality of television channels is protected using the first encryption scheme may be designated. The first and second ECMs may be transmitted to a plurality of television receivers. Data from the first ECM may be used for descrambling of the first television channel by the plurality of television receivers. Data from the second ECM may be used for descrambling of the second television channel by the plurality of television receivers.

Abstract: The disclosed embodiments relate to a system and method for delivering satellite services at multiple security levels. More specifically, there is provided a method comprising determining a level of security supported by a first set top box (22a), encoding a first IP packet containing a satellite service using the level of security supported by the first set top box (22a), transmitting the first IP encoded packet to the first set top box (22a), determining a level of security supported by a second set top box (22b), wherein the level of security supported by the second set top box (22b) is different from the level of security of the first set top box (22a), encoding a second IP packet containing a satellite service using the level of security supported by the second set top box (22b); and transmitting the second encoded IP packet to the second set top box (22b).

Abstract: An encoded contents receiving method of a contents receiving device is disclosed. The method includes pairing with a mobile device through wired or wireless communication, receiving a private key which is generated by the paired mobile device, receiving an encoded control word (CW) from a contents supplying device, and decoding the encoded CW based on the received private key to descramble an encoded contents supplied by the contents supplying device.

Abstract: This disclosure describes systems and methods related to a network-based digital video recorder playback adapter. In some embodiments, a request for digital content may be received from a customer device. A plurality of segments associated with the digital content may be received. A content stream may be generated based at least in part on the plurality of segments associated with the digital content. The content stream may be transmitted.

Abstract: A method for adding a conditional access system to a digital audio/video transmission system that delivers content from a source to a security device associated with an audio/video processing device by providing at the broadcast source a datastream having system information data including an unused identifier reserved for security data associated with the additional conditional access system.

Abstract: A streaming video server generates a virtual file system that includes virtual addresses of a plurality of encrypted segments of a plurality of video programs at each of a plurality of bitrates, without storing the plurality of encrypted segments in persistent storage. A request is received from a client device to access a selected one of the plurality of video programs via a request to access the virtual file system. The plurality of encrypted segments of the selected one of the plurality of video programs are generated at a selected bitrate, in response to the request.

Abstract: A method and system for ordering content includes a first device having an ordering interactive interface having available content. The first device forms a content selection corresponding to the available content from the ordering interactive interface and communicates the content selection to a content processing system. The content processing system generates an unencrypted control word comprising instructions for locating the available content from a user device and communicates the unencrypted control word to the user device. The user device receives the unencrypted control word to enable storing the available content corresponding to the content selection in response to the instructions contained in the unencrypted control word and stores the available content in a storage device of the user device.

Abstract: A streaming video server includes a virtual file system that receives a request for a selected one of the plurality of video programs from a client device. The selected one of the plurality of video program is retrieved from the at least one video source in response to the request. A plurality of encoded segments are generated from the selected one of the plurality of video programs, based on at least one encoding parameter that is adjusted in response to context data relating to the streaming session for the selected one of the plurality of video programs.

Abstract: The invention provides secure playback on a client of a selected version of content with files downloaded from a corresponding package stored on a content server. The package includes a plurality of video and audio files for the available versions of the content. Each package of files includes a master manifest that lists the files included in the package. Also, each file listed in the master manifest includes a separate hash value. Separate packages include other video and audio files and other master manifests for available versions of other/different content. In at least one embodiment, one or more subset manifests are generated from the master manifest. Each subset manifest lists a portion of the files listed in the master manifest and the corresponding hash values for these files.

Abstract: In an embodiment, a system and method permit an IPTV subscriber to display on a channel of an IPTV network video data from a subscriber video database. The system may include, in addition to the IPTV network and the subscriber database, an IPTV server and an IPTV set top box. The IPTV set top box is configured to receive commands causing the IPTV set top box to retrieve video data from an IPTV subscriber database, display the video data on an IPTV display unit; and to transmit the video data over an IPTV network to an IPTV server. The IPTV server is configured to transmit the video data from the IPTV server over the IPTV network such that the video data is displayable on a channel of the IPTV network.

Abstract: Of the types of content included in a broadcast signal, a type of content different from broadcast content is selectively stored. A broadcast signal reception block receives a broadcast signal of a selected channel. A display control block controls such that broadcast content included in the broadcast signal received by the broadcast signal reception block is displayed on a display block. If storage content that is content identified to be stored is included in the broadcast signal received by the broadcast signal reception block, then a storage content output block outputs this storage content to a storage block.

Abstract: A method to identify the origin of a security module in a pay-tv system comprising: receiving by the pay-tv decoder system at least a first stream, a second stream and a control word stream, the first and second streams being encrypted by a first and a second control word, respectively, extracting from the control word stream, entitlement messages containing a main control word allowing retrieval of the first and second control words and access conditions, transferring the control word stream to the security module and checking the access conditions, selecting a current control word from the first or second control word based on part of the internal parameter, transmitting the current control word to the pay-tv decoder, selecting a current stream from the first or second stream in accordance with the selection of the first or second control word, and decrypting the current stream with the current control word.

Abstract: Systems and methods are provided for monitoring transmissions of media content (such as audio and audiovisual content) in order to obtain independent and objective data regarding the use of specific media content recordings or works within the transmissions. Processing and reporting of such data is provided in various ways to serve a variety of business needs. Methods for employing content identification technology to efficiently and automatically obtain reliable, accurate, and precise monitoring data are also disclosed. Various information products and services based on such monitoring systems are proposed.

Abstract: Integrated processing of multimedia signals can eliminate unnecessary signal processors and converters without losing the functionality of typical home entertainment system components. The integrated system includes a main player that captures and processes signals digitally, a dummy display, and a dummy speaker. The dummy display may only have a display panel and a panel driver. The dummy speaker may only have a driving unit and no crossover logic. The main player may have a PC architecture and process all signals digitally for outputting signals tailored for the display device and the individual driving units of the dummy speaker. The integrated system may generate parameters for optimizing display of a video source. These parameters can be shared among users over a network connection.

Abstract: A system includes a transport central processing unit of an information appliance device. The transport central processing unit receives a message from a head-end. The transport central processing unit provides access of the message to the security processing unit. A host central processing unit connected with the transport central processing unit is prohibited access to the message.

Abstract: Systems and methods for generating domain-compliant image data. Domain-specific usage rights may be evaluated. The domain-specific usage rights may be associated with the transfer of particular encoded image data to a particular computing system other than the computing system. The domain-specific usage rights may specify maximum allowable spatial frequency content of the particular encoded image data. Domain-compliant image data may be generated by removing particular disallowable spatial frequency content from the encoded image data prior to transfer to the particular computing system.

Abstract: Embodiments of the invention are generally directed detection of encryption utilizing error detection for received data. An embodiment of a method includes selecting a first port for foreground processing of a stream of data received at the first port, the stream of data including content data, and sampling a set of data received at a second port, the second port being not selected for foreground processing, the set of data including a data packet and error correction data. The method further includes performing background processing of the set of data, wherein the background processing includes decrypting data of the data packet and utilizing the error correction data to determine whether the data packet contains an error, and determining whether data received at the second port is encrypted based at least in part on the determination whether the data packet contains an error.

Abstract: A process for secure distribution of video sequences coded in accordance with a nominal stream format including visual data and data for configuration of decoding of the stream that does not represent the visual data, wherein, prior to transmission to client equipment, an analysis is made of the stream for generating a modified main stream having a format of the nominal stream and having pictures/images modified by modification of the data for configuration of decoding, and complementary digital information of any format including digital information suitable to permit reconstruction of modified pictures, then, for separately transmitting the modified main stream and complementary digital information generated from a server to the client equipment, and wherein a synthesis of a stream in the nominal format is calculated on the client equipment as a function of the modified main stream and the complementary information.

Abstract: Multiple rating versions of content are provided and selectable by a viewer. A user can select one of the rating versions of the content for viewing. The user selection is dynamic such that the user can change the rating version selected while watching the content. Substitution instructions and substitution segments are downloaded and stored in a substitution cache. When a substitution descriptor is encountered in the content, a processor obtains at least one substitution instruction that corresponds to a substitution instruction identification code stored in the substitution descriptor. The processor executes the instruction to effect the rating change.

Abstract: A method for controlling viewing a broadcast in a terminal. A terminal having a broadcast control function includes a first replaceable identity device attached to a portion of the terminal and a controller for setting a broadcast viewing level when a second identity device replaces the first identity device, wherein the broadcast viewing level was previously set by the first identity device.