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7590243 |
Digital media conditional access system for handling digital media content
A method, apparatus, and article of manufacture provide the ability to process digital media content. A secret key (Ka) is obtained and encrypted into an authorization key message (AKM) message....
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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...
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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...
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7475331 |
Data dependent scrambler with improved global constraint
A data dependent scrambler for a communications channel that receives a user data sequence including N symbols each with M bits includes a seed finder that selects a scrambling seed and a first...
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7460668 |
Optimized secure media playback control
A media player manages and controls rights to playback of media content by the media player, which stores, during a registration process in which the media player need not be connected to an...
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7457415 |
Secure information distribution system utilizing information segment scrambling
A method and apparatus for securing and, optionally, distributing an information stream by divided the information stream into a collection of segments and compressing the segments, rearranging the...
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7451309 |
Signature specification for encrypted packet streams
Methods, systems, and products are disclosed for specifying a signature for an encrypted packet stream. One method receives the encrypted stream of packets, and encryption obscures the contents of...
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RE40468 |
Video data bus communication system and method
A video data communication system and method are disclosed which provides for the secure transmission of video data among devices connected to a video data bus. The video data is transmitted with...
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7397921 |
Receiving apparatus
A transmission apparatus updates the encryption method in the event the encryption method is broken. The tool ID of a decryption tool for encrypted data is acquired, the presence of the tool is...
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7379548 |
Virtual smart card device, method and system
A system and a method for secure transmission of protected content to a subscriber, without requiring a smart card or other renewable security element to be in physical proximity of the recipient...
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7360252 |
Method and apparatus for secure distribution of software
Software is securely distributed with limited usage rights. The software may be an executable program and/or one or more data files such as image or multimedia data files. The software includes an...
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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...
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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...
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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...
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7257227 |
System for denying access to content generated by a compromised off line encryption device and for conveying cryptographic keys from multiple conditional access systems
A method for forwarding messages containing cryptographic keys from a conditional access system that controls a population of set-top boxes to an encryption renewal system. The method includes...
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7251328 |
System for secure decryption of streaming media using selective decryption of header information and decryption of reassembled content
A system provides improved security in a streaming media decoder includes decryption of encoded media information at the media layer, within a decoder component of a playback device. A content...
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7242773 |
Multiple partial encryption using retuning
A partial dual encryption encoder, consistent with certain embodiments of the present invention receives video from a source of an unencrypted digital video signal. A first segment of the...
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7239706 |
Transcoder for decoding encoded TV programs
A decoder device has a control unit for decoding encoded TV programs. The decoder device has an input for entering an encoded TV program, a decryption device for decoding an encoded TV program into...
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7233667 |
Record medium, record medium manufacturing device, computer readable record medium on which program is recorded, and data presentation device
A record medium comprises an original data obtained by superimposing a presentation target data, to which an error correction encoding is performed and an identification information.
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7228413 |
Data transmitting/receiving method and its receiver
A data transmitting/receiving method for charging the reception of pay data in units of a reception or in units of a group to which receivers belong with a high degree of freedom and its receiver....
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7164766 |
Method for addressing terminals
A method for addressing terminals for receiving television programs subject to charge includes dividing the terminals into respective groups, each group having a respective group address. A...
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7088950 |
Method and apparatus for controlling integrated receiver operation in a communications terminal
A method and apparatus for controlling integrated receiver operation in a communications terminal includes using an electronic device having a broadcast receiving module and a two-way...
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7082198 |
Data receiving method and data receiving unit therefor
A data receiving method and unit extracts required data from among received digital signal data, and uses a predetermined decoding key to decode the extracted data. In the method and unit, it is...
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7068787 |
System and method for protection of digital works
A digital work and a system context (or resource information or system resource) are polarized enabling trusted rendering or replay of the digital work without depolarization of the digital...
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7065213 |
In a subscriber network receiving digital packets and transmitting digital packets below a predetermined maximum bit rate
An apparatus in a digital network receives at least one input transport stream having a plurality of PID streams and outputs at least one transport streams. The apparatus demultiplexes the at least...
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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...
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7039816 |
Using smartcards or other cryptographic modules for enabling connected devices to access encrypted audio and visual content
To prevent piracy, audiovisual content is encrypted prior to transmission to consumers. A low-cost, high-security cryptographic rights module (such as a smartcard) enables devices such as...
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7020284 |
Perceptual encryption and decryption of movies
The present invention is a combined encoder and perceptual encrypter for a file of high quality video. The combined encoder and perceptual encrypter includes an encoder and perceptual encrypter....
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7012932 |
Digital broadcast data receiving apparatus
A digital broadcast data receiving apparatus comprises a plurality of broadcast data receiving units for receiving digital broadcast data supplied from a plurality of digital broadcast data...
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6944299 |
Method for synchronous encryption over a communication medium
An apparatus and method provide for synchronized operation of encryption processes at two remote communication terminals. A first one of the terminals detects information associated with a current...
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6829368 |
Establishing and interacting with on-line media collections using identifiers in media signals
Media objects are transformed into active, connected objects via identifiers embedded into them or their containers. In the context of a user's playback experience, a decoding process extracts the...
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6748079 |
Method and system for recording data on and reading data from an optical medium
Accordingly, an improved method for recording data on an optical medium is disclosed which includes receiving and encoding a first set of data frames by a CIRC encoder to generate a second set of...
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6711261 |
Enhancing concealment in the presence of fine mistuning for various TV scrambling techniques
An improved method and apparatus for maintaining concealment for a scrambled signal when frequency pre-emphasis is used to defeat the scrambling. The pre-emphasis may be synthesized with high pass...
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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...
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6650753 |
System for encrypting broadcast programs in the presence of compromised receiver devices
A digital broadcast system provides secure transmission of digital programs to in-home digital devices even when some of the devices are unauthorized. A matrix of device keys S j,i is provided,...
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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...
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6490356 |
Broadcast receiving system comprising a computer and a decoder
A combined computer and decoder system for receiving broadcast digital data transmissions, characterized in that the decoder ( 2020 ) comprises a routing means ( 2032 ), broadcast digital data...
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6487720 |
Apparatus for receiving digital broadcast signal and apparatus for recording and reproducing digital broadcast information included in the digital broadcast signal
When a received broadcast signal is received in a digital broadcast signal receiving apparatus, an entitlement management message EMM representing broadcast-watching enabling information is...
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6438432 |
Process for the protection of stored program controls from overwriting
A method is provided for protecting stored-program control systems, in particular in motor vehicles, which offers a software protection system for programming. A programming routine for programming...
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6381697 |
Electronic equipment, method of controlling operation thereof and controlling method
A method and apparatus for controlling communication between components connected to a bus. All equipment manufacturers may use every application available on each connected apparatus by using a...
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6304660 |
Apparatuses for processing security documents
A security document processing apparatus is provided having a feed path for receiving documents and at least one imaging assembly for capturing image data from documents received in the apparatus....
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6304659 |
Secure data broadcasting
In a method of receiving packets of data addressed to one or more receivers each having an individual identifier, wherein the data is included in a digital signal having destination addresses...
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6266414 |
Method for digital data compression
A method of creating a wavelet decomposition of a collection of data values is disclosed, the method including the steps of performing an initial decomposition of the data values into a series of...
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6219422 |
Data transmitting apparatus, receiving apparatus, and data transmission and reception system
Video and audio data of a plurality of received programs and a common information ECM are recorded to a recording medium. A recording position of the program is written on a management table. When...
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6100916 |
System and method for subscriber controlled signal blocking
A technique for the blocking of individual programs and/or portions of programs transmitted in a source signal, e.g., a cable television signal. In particular, individual programs and/or portions...
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6058192 |
Universal signal processor and method of processing
A method for decoding and reconstructing a scrambled video signal is provided in which a scrambled video signal is received and the location of at least one predetermined element of the scrambled...
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5953418 |
Providing selective data broadcast receiver addressability
A method of transmitting data to a plurality of receivers is provided wherein an identifier is assigned to each of the receivers that cannot be ascertained once assigned, a subset of receivers is...
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5912971 |
User-addressing method and receiver in an authorized access television system
A collective address is defined at the transmitter end, not only by the contents of a field of bits, but also by a compulsory position of said field in a word which is larger than said field. Said...
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5878135 |
Decoding system for processing encrypted broadcast, cable or satellite video data
A decoder excludes an encryption code or key from decrypted or non-decrypted program output data. Decrypted program representative data is generated from an input datastream containing encrypted...
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5864621 |
Broadband television scrambling and descrambling system
A multichannel television access control system is disclosed wherein processing of the broadband signal is performed by gated coherent RF injection on a plurality of channels, thereby effecting...
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