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7590242 |
Selective multimedia data encryption
A conditional access system for multimedia data is disclosed that offers acceptable security at drastically reduced requirements on hardware performance. A selectively encrypted transport stream is...
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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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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....
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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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7403618 |
Conditional access
A transmitter provides receivers conditional access to data transmitted via a network. A content encryptor is used to encrypt the data under control of a same authorization key before it is...
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7376976 |
Transcryption of digital content between content protection systems
Technology for protecting a digital content including a first content protection system capable of decrypting the digital content, the digital content including an inclusion list; a linkable...
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7367061 |
Systems, methods, and a storage medium for storing and securely transmitting digital media data
Systems, methods, and a storage medium for storing and securely transmitting digital media data in a networked system are provided. The method includes determining an amount of memory for storing...
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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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7327843 |
Data reproducing device, hard disk, and data storing disk
A hard disk A has is constructed to include: a disk 10 in which copy protection information is written in advance in a surface shape such as slits or corrugations in a pre-recording region 13 ...
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7304757 |
System and method for secure printing
The present disclosure relates to a system and method for secure printing. In one arrangement, the system and method pertain to receiving a document to be printed, determining that the document...
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7302057 |
Method and process for transmitting video content
Methods and apparatus, including computer program products, for transmitting content from a content collection site to a content monitoring site, including inserting a first digital signature into...
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7278165 |
Method and system for implementing digital rights management
In one embodiment, a content license is created that defines parameters for accessing a piece of digital content. A first logical expression in the content license defines a plurality of playback...
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7275163 |
Asynchronous configuration
One or more embodiments of the invention provide a method, apparatus, and article of manufacture for providing access to digital services. Configuration information that has been transmitted...
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7254236 |
Method and system for handling two CA systems in a same receiver
A method for enabling a security device to access a service protected by a conditional access system, wherein the service has associated with it two conditional access (CA) system identifier pairs....
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7240217 |
Reprogrammable subscriber terminal
A reprogrammable subscriber terminal of a subscription television service which can have the control program code of its control processor modified by downloading new program code from the headend....
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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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7139550 |
Method and system for verifying the authenticity of a first communication participants in a communications network
In the method and the arrangement for checking the authenticity of a first communication subscriber in a communications network, a first fault information item is formed in the first communication...
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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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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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7010685 |
Method and apparatus for storing scrambled digital programs by filtering product identifier
In accordance with one embodiment, a method for storing a normal scrambled digital program is provided. The method includes receiving a scrambled program, and receiving a plurality of access...
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7010125 |
Method for tracing traitor receivers in a broadcast encryption system
A method for tracing traitor receivers in a broadcast encryption system. The method includes using a false key to encode plural subsets representing receivers in the system. The subsets are derived...
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6973445 |
Demarcated digital content and method for creating and processing demarcated digital works
Flags are used to mark portions of content in a digital work to permit marking or demarcation of portions of the document. The demarcated portions can be handled in various ways. For example,...
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6944298 |
Steganographic encoding and decoding of auxiliary codes in media signals
One aspect of the invention is a method of decoding an auxiliary code embedded in an audio signal. The method performs a statistical decoding of a multibit auxiliary code embedded in an audio...
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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...
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6865675 |
Method and apparatus for use of a watermark and a unique time dependent reference for the purpose of copy protection
A copyright protection system for protecting content wherein a time dependent ticket is calculated at a source device by combining a checkpoint with a ticket. The checkpoint is transmitted from a...
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6772434 |
Device and method for the integrated presentation of a secondary service as a part of a primary service
A method and apparatus for providing an integrated presentation of existing media program services and secondary media program services is described. The method comprises the steps of receiving and...
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6725459 |
Descrambling device for use in a conditional access system
In a conditional access system, a system and method for descrambling a scrambled instance having a predetermined encryption cycle rate is claimed. The invention takes advantage of the inherent...
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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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6698019 |
Apparatus and method for controlling viewing of video signals
An apparatus and method for controlling viewing of video programs. The apparatus includes a signal unit for receiving and processing a video signal, a decoding unit for decoding a grade code of a...
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6591420 |
Remote control system for audio and video content
A program distribution system is disclosed for the simultaneous release of a program at a plurality of locations. The locations may include local broadcasters, or even individual devices. A program...
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6526510 |
Signal reproducing method and apparatus, signal recording method and apparatus and signal recording system
A signal reproducing method and apparatus in which the generation limitation information, such as a token or a ticket, contained in digital data, is recorded in analog signals. A reproducing device...
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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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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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6393128 |
System for broadcasting data signals in a secure manner
A system for broadcasting data signals in a secure manner comprises means for encrypting the data signals using a first key, means for broadcasting the encrypted data signals to subscribers, means...
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6321385 |
Data receiving-processing apparatus and method, and broadcasting method
A data receiving-processing apparatus including a receiver for receiving an extended function program or data transmitted thereto, a processor for processing the received data, a first storage such...
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6256393 |
Authorization and access control of software object residing in set-top terminals
A method for providing authentication, authorization and access control of software object residing in digital set-top terminals creates a fingerprint ("signature") for each software object,...
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6144402 |
Internet transaction acceleration
The invention is a multiple mode transmission system that interconnects the computer of a user with the Internet. The system has a first link that is a relatively low bandwidth telephone system....
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6122377 |
Video signal receiver with record protection
A video signal receiver has a first output terminal, at which only a chroma, video, blanking, sync signal or a video, blanking, syncs signal with a chrominance signal is output. A second output...
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6115471 |
Member-exclusive service system and method through internet
A client receives a remote installation service (RIS) activated by a browser through the Internet, and notifies an RIS server of a software number corresponding to an icon pointed to and clicked by...
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6055315 |
Distributed scrambling method and system
A scrambling system for a cable television system in which a group of channel frequencies are reused over a plurality of service areas includes an access controller, an encoder and a plurality of...
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6005937 |
Universal decoder
A universal decoder consisting of modules that may be exchanged with a module of a like type which provides automatic frequency changes and remote system control of the decoder by a host computer....
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RE35954 |
VCR with cable tuner control
A single remote control transmitter can advantageously control three units including a cable tuner/descrambler, a video recorder/player and a television receiver. One of these three units,...
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5815572 |
Video scrambling
A system for scrambling a video signal, wherein multiple modes of scrambling are available, including (i) line reversal, (ii) line inversion, (iii) line permutation, and (iv) block permutation. The...
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5742677 |
Information terminal having reconfigurable memory
An information terminal includes a secure microprocessor and secure non-volatile memory. Data such as authorization data and other service provider related data for subscription information...
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5719943 |
Digital information signal transmitting/receiving method and system
A digital information signal transmitting/receiving method and system having a transmitter for transmitting an encrypted digital information signal and a plurality of receivers for receiving the...
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5579391 |
TV scramble system for preventing illegal reception
A scramble system can effectively prevent a scrambled broadcast from being viewed illegally. In a scramble system in which a video signal scrambled by a scrambling apparatus (10) is descrambled by...
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5570198 |
Paid broadcast receiving device with connection detecting capability
A paid broadcast receiving device has a decoder connection detector for determining whether or not a video cassette recorder (VCR) and a canal+ decoder are connected. The determination depends on...
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5557675 |
Computer controlled audio-visual system
A computer receiving an audio/video signal for controlling an audio/video system including at least one television, comprising a tuner for tuning a selected channel from among a plurality of...
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5537612 |
Remotely selectable audio/video/text disruption
A television receiver is equipped with hardware/firmware so that it may be disabled by a remotely transmitted series of codes. In a preferred embodiment, the display of the receiver indicates that...
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