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7617510 Media network using set-top boxes as nodes  
Subject matter includes methods of using conventional set-top boxes that receive streaming video modulated on coaxial cable rather than over an IP-based LAN as nodes in a media network. In one...
7590237 Time-multiplexed multi-program encryption system  
A system and method are described for greatly increasing the number of services that can be encrypted with existing conditional access equipment. The method is most useful when many digitally...
7580526 Methods and apparatus for protecting signals transmitted between a source and destination device over multiple signals lines  
Methods and apparatus for protecting copyrighted information, e.g., video signals, from unauthorized use are described. Encrypted video signals are transmitted from a source device, e.g., display...
7580523 Distribution of video content using client to host pairing of integrated receivers/decoders  
A host receiver and a client receiver are operatively in a direct broadcast satellite system. Program materials received by the host receiver from the direct broadcast satellite system are...
7580522 Digital video broadcasting receiver  
A digital video broadcasting receiver comprising a first input for receiving a first transport stream of data (TS# 1 ) and a second input for receiving a second transport stream of data (TS# 2 ),...
7571465 Information exchanging system, information communication terminal, information exchanging method, and computer product  
Information communication terminals for transmitting/receiving information that includes a plurality of elements are connected to each other via a network. A information communication terminal at a...
7551738 Separation of copy protection rules  
A copyright protection method and apparatus employ a first protection scheme within a single authorized domain, in which all interfaces are protected with digital rights management system, and...
7551736 Physical layer header scrambling in satellite broadcast systems  
Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises scrambling a first header of the...
7548624 Distribution of broadcast content for remote decryption and viewing  
Program materials received from a direct broadcast satellite system are distributed between a host receiver and a client receiver for remote decryption. Using either a same pairing key or different...
7533271 Method and apparatus for remote control and monitoring of a multimedia system  
A method and apparatus for remote control and/or monitoring of a multimedia system includes processing that begins when a hand held device transmits a remote control/monitoring request to a server....
7508454 Digital television conditional access methods and apparatus for simultaneously handling multiple television programs  
A digital television receiving system having a security mechanism which simultaneously handles two or more separate television program signals is described. The system includes a plurality of...
7505591 Personal video recorder and method for controlling thereof  
The present invention provides a personal video recorder and control method thereof, by which two scrambled transport streams can be descrambled to fit the open cable standard. The present...
7499545 Method and system for dual link communications encryption  
A method and systems are provided for creating an authentication of secure communications between a software video driver and a video display. A video driver transmitting digital video data deemed...
7493638 Processing terminal, receiving terminal and received data processing system  
An IC card (processing terminal) divides a process into process blocks, and holds a time period required for processing each process block. A receiver (receiving terminal) notifies the IC card of a...
7461396 System and method for providing a secure environment for performing conditional access functions for a set top box  
A system and method are provided for decrypting a selected program. The system and method can receive at least one authorization message and at least one control message associated with a selected...
7454018 Transfer of DVD decode key on a window by window basis to an attached device  
Disclosed is apparatus for processing an encrypted data stream within a computer system adapted to receive the encrypted data stream from a data storage device. A data output device is coupled to a...
7394834 Common interface controller and method of descrambling transport stream channels  
A common interface controller and a method of descrambling channels of first and second transport streams using a conditional access module for descrambling channels of a transport stream as...
7386129 System and method for multimedia content simulcast  
A computer-implemented method is described for processing multimedia channels comprising: encrypting a first group of multimedia channels using a first type of encryption to produce a first group...
7362861 Methods and apparatus for protecting information content  
Methods and apparatus for protecting copyrighted information, e.g., video signals, from unauthorized copying. Analog red (R), green (G) and blue (B) video signals are transmitted from a source...
7359511 Encryption transmission system  
A video signal and an audio signal are time division multiplexed, encrypted, and transmitted. A transmission side time-compresses the audio signal, multiplexes, encrypts, and transmits the...
7346164 Communication installation for collective data reception  
A communication installation for communal reception of digital television and/or of multimedia data, which receives a plurality of signals emanating from separate sources. The installation of the...
7346163 Dynamic composition of pre-encrypted video on demand content  
According to certain embodiments consistent with the present invention, a method of processing digital video content, wherein the digital video content comprises intra-coded frames and inter-coded...
7308099 Device and method for producing an encoded audio and/or video data stream  
An apparatus for generating an encrypted data stream representing an audio and/or video signal comprises an encoder for encoding an input signal to generate a data stream with a predefined data...
7298846 Method of identifying multiple digital streams within a multiplexed signal  
In a subscriber television system with a host terminal, the present invention allows the identification of the individual packets from two separate MPEG transport streams that have been multiplexed...
7292692 Content scrambling with minimal impact on legacy devices  
An encryption arrangement for television programs or other digital programming consistent with certain embodiments sends content completely in-the-clear and also encrypts only a portion of the...
7292691 Progressive video refresh slice detection  
A selective encryption encoder and method of dual selective encryption and detection of intra-coded slices in video content. The selective encryption encoder has a packet identifier that identifies...
7286668 Method of protecting copyright of digital video work  
This invention discloses a method of protecting copyright of a digital video work by using a digital password technology and a digital watermark technology to prevent the unauthorized use of a...
7224798 Methods and apparatus for providing a partial dual-encrypted stream in a conditional access overlay system  
The present invention is directed towards providing a partial dual-encrypted stream in a conditional access overlay system. The headend equipment includes an aligner, identifier, and remapper (AIR)...
7184552 Information reproducing apparatus  
An information reproducing apparatus reproduces one type of information (for example, video information) in synchronous with a plurality of channels of other type of information (for example, audio...
7162034 Method and apparatus for multi-session time-slot multiplexing  
Techniques for performing multistage processing with feedback include a multi-stage feedback processor comprising a first plurality of processing stages connected in series. A feedback channel...
7146506 Digital video display system  
A system for receiving and processing digital video information such as a digital television broadcast, includes a modular platform which receives a plurality of hot pluggable cards. The platform...
7131138 Information exchanging system, information communication terminal, information exchanging method, and computer product  
Information communication terminals for transmitting/receiving information that includes a plurality of elements are connected to each other via a network. A information communication terminal at a...
7110542 Protecting audio/video content during storage and playback on a processor-based system  
A system for protecting audio/video content during storage and playback on systems with open buses receives a multiplexed signal, including a plurality of A/V signals and decryption keys. Following...
7062048 Apparatus and method for single encryption with multiple authorization of distributed content data  
A content data distribution system uses a single key and multiple program authorization to transmit a plurality of programs in multiplexed data packets such as those used in Digital Video...
7046805 System and method for efficiently storing and processing multimedia content  
A method is described comprising: receiving a broadcast signal containing a plurality of encrypted multimedia channels; storing the encrypted multimedia channels in a first hard drive partition;...
7023992 Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device  
In a data multiplexing device which multiplexes and transmits the transport stream packets of program data consisting of a plurality of data elements constructed in the form of transport stream...
7003670 Biometric rights management system  
An apparatus and method for using biometric information to control access to digital media that is obtained over a network such as the Internet. Encryption, techniques are used in combination with...
6996236 Methods and apparatus for protecting signals transmitted between a source and destination device over multiple signal lines  
Methods and apparatus for protecting copyrighted information, e.g., video signals, from unauthorized use are described. Encrypted video signals are transmitted from a source device, e.g., display...
6993131 Method and system for managing rights in digital information over a network  
A method and system for distributing digital information is disclosed. Preferably, a user acquires a tangible object which contain a code authorizing access to the digital information. The user...
6990203 Cable television setback decoder automatic control  
A receiver which receives a multichannel signal and which detects and outputs an unscrambled desired signal to a video display and speaker unit includes a first unit, a second unit and a...
6983049 Storage devices for secure scalable data streaming  
A method and system for storing data streamed over a network. Scalably encoded and progressively encrypted data are received by a second device from a first device. The scalably encoded and...
6928165 Communication system using digital watermark for synchronizing multiplexed text data to video frames  
A digital video communication system includes, at a source site, an embedding circuit for embedding a digital watermark in a digital video stream to produce a watermarked digital video stream, and...
6885748 System and method for protection of digital works  
A method of protecting a digital work uses a format preserving encryption scheme to encrypt the digital work. This enables any native replay application or rendering application to transform an...
6873853 Method and apparatus for providing commercial broadcasting service in cellular mobile communication network  
A method and an apparatus for providing only authorized mobile subscribers with a specified commercial broadcasting service in a cellular mobile communication network. A base station transmits a...
6871355 Conditional access system of CATV  
A CATV conditional access system equipped with a digital head end which transmits picture signals of digital programs in a batch mode to terminals provided within a plurality of areas. This digital...
6731757 Multichannel digital signal generation method and apparatus  
A method of and apparatus for digitally generating a broadband signal comprising a plurality of CW or quadrature modulated signals having incrementally related frequencies wherein said plurality of...
6728271 Stream demultiplexing device  
In a stream demultiplexing device, a synchronous clock signal is supplied to a header processing unit only when a header is being inputted and processed in the header processing unit, and supplied...
6690797 Descrambling device for the use of several conditional access sub-systems  
The descrambling device comprises hardware resources ( 1 ) and first memory zones (CA 1 , CA 2 , . . . , CAn) to store at least two different access control codes for controlling the hardware...
6587561 Key delivery in a secure broadcasting system  
A key delivery method for use in an encoded communications system in which at least one encoded item including a first item encoded with a first item control word is sent in a communication stream...
6574338 Information delivery system and method  
A satellite-based digital broadcast system is used to provide real-time news, entertainment and informational programs to aircraft passengers in flight. Transmissions from the satellite occur on a...
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