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Class 725/31 - With encryption or scrambling of video signal


Subclass of Class 725 - Interactive video distribution systems
Definition: Subject matter comprising means or steps for restricting
No. of patents: 316
Last issue date: 04/24/2012


1                
NumberTitleIssue Date
8166499Method, apparatus and set-top device for transmitting content to a receiver
A method for transmitting content (12) via a digital video interface (15) using a high-bandwidth digital content protection system (50). The content (12) has a first format in a first state, a second format in a second state, and vertical...
04/24/2012
8117634Media data processing apparatus and media data processing method
A media data processing apparatus includes an input unit that inputs media data and intellectual property management data for managing intellectual property of the media data, a first encoding unit that encodes the media data, a second encoding unit that encodes the...
02/14/2012
8060902System for receiving broadcast digital data comprising a master digital terminal, and at least one slave digital terminal
The system for receiving broadcast digital data (in particular pay television services) comprises a master digital terminal (1), and at least one slave digital terminal (2) connected to the master terminal by a link (3) and able to receive prote...
11/15/2011
8037491Data transmitting method, data transmitting system, data receiving method and receiving terminal
In a method and system for transmitting and receiving data, specified data can be transmitted only to a specific receiving terminal by assigning unique terminal information to the receiving terminal. When transmitted with data, the unique terminal information identi...
10/11/2011
8010977Broadcast receiving apparatus and pay program providing system
A broadcast receiving apparatus receives a broadcast signal containing video image information representing a video image, pay program identifying information indicating whether or not the video image is a pay program video image, and address information indicating ...
08/30/2011
7984464Digital broadcast receiving apparatus
A digital broadcast receiving apparatus, includes: a channel information memory unit which stores the physical channel, a virtual channel, the sub channels, and scrambling information which indicates whether the sub channels are scrambled or not so as to refer the s...
07/19/2011
7979876Receiver, distribution method of release information and distribution method of contents
In the case when password data (PW1) added to a TV broadcasting signal and password data (PW2) transmitted from an Internet connection section (2) have a predetermined correlation with each other, the display section (3) is allowed to dis...
07/12/2011
RE42549Method for protecting of data, reproduction according to both transmitted protection data and apparatus protection data
In a reproduction apparatus, for reproducing an original signal conveyed as main data by a data medium such as a recording disk or broadcasting system, with medium protection data which are specific to the data medium being conveyed together with the main data, the ...
07/12/2011
7975279Impulse purchase system for pay-television
In a pay television system, the choice and the confirmation of an impulse purchase are performed by the user on presentation, by means of a screen, of a grid of programmes. The selection by this user of a particular programme of his choice from the grid is subsequen...
07/05/2011
7975280Method and apparatus for performing impulse authorizations within a video on demand environment
A conditional access control apparatus for inserting descrambling messages and impulse authorizations to enable requesting subscribers to utilize requested scrambled content. The apparatus includes a content and asset storage module for storing content and assets, a...
07/05/2011
7945925Copy protection
An apparatus for copy protection in a cable broadcast receiver and method thereof, by which digital broadcast contents can be protected from being copied. ...
05/17/2011
7930712Apparatus and method for processing content signals from multiple signal sources
An apparatus and method for processing content signals received from a plurality of different, and possibly dissimilar, signal sources, such as different satellite networks, and providing a display based on the content of those signals. The apparatus includes a tune...
04/19/2011
7913273System and method for receiving broadcast audio/video works and for enabling a consumer to purchase the received audio/video works
A system and method for purchasing broadcast audio and/or video (audio/video) works. According to one embodiment, the system includes a data stream processor that receives a broadcast audio/video data stream and produces from the broadcast audio/video data stream a ...
03/22/2011
7895616Reconstitution of program streams split across multiple packet identifiers
A method and apparatus for reconstituting packetized data streams representing a television program when the program uses multiple packet identifiers (PID) as in selective encryption schemes. Transmission of multiple sets of system information (SI) is avoided by inc...
02/22/2011
7853971Broadcasting signal receiver apparatus provided with controller for controlling demodulation mode, and apparatus for controlling demodulation mode
A set-top box is configured to mount therein a security device which stores security information on a broadcasting entity, and extracts transmission information for receiving a broadcasting signal modulated from a control signal from a head end. In the set-top box, ...
12/14/2010
7810113Security device and head end in conditional access system and method for controlling illegal use in the system
A security device and a head end of a conditional access system (CAS), and a method for controlling illegal use of the conditional access system, capable of minimizing the number of entitlement management messages (EMMs) to be distributed from a head end to a user a...
10/05/2010
7802279Methods and apparatuses for processing broadcast flagged media content
Methods and Apparatuses for content protection of broadcast flagged programs for digital television devices that use CableCARDs. In one embodiment, a filter is used to prevent program content in a clear format from being exposed on the CableCARD connector. In one em...
09/21/2010
7788685Software RASP parser for a PVR-enabled set-top system
According to one aspect, there is provided a method for parsing RASP events in a number of packets in a PVR-enabled set-top system using a software RASP parser. The method includes retrieving a first SCID from a first packet, determining if the first SCID is on a SC...
08/31/2010
7765566In-band signaling to control encryption and transcoding resources in VOD/On-Demand system
A method for controlling flow of a video content signal through a communications system, such as a video on-demand system creates a unique message for each individual video content signal and attaches the unique message to each individual video content signal prior ...
07/27/2010
7716699Control and playback of media over network link
A home entertainment network transmits audio/video decrypted from a DVD over a network to a media receiver using a secure channel. The A/V data is re-encrypted in a second encryption format amenable to transmission over the network. The media stream is thereby compl...
05/11/2010
7681214Outer code covered synchronous code division multiple access for cable modem channels
Outer code covered synchronous code division multiple access for cable modem (CM) channels. Outer pseudo-noise (PN) code is employed, along with orthogonal codes (OCs), to spread CM signals thereby mitigating inter-code-interference (ICI) effects caused by residual ...
03/16/2010
7617510Media 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 implementation, an exemplary adapter is used to integrate a conventional ...
11/10/2009
7600238Method for verifying television receiver sets with access control and corresponding receiver set
The invention concerns a method for verifying television receiver sets with access control and a corresponding receiver set. The invention is characterized in that a broadcaster performs parametered calculations, for example through the subscriptions and the charact...
10/06/2009
7571451Method and apparatus for performing session based conditional access
A video-on-demand conditional access information distribution system includes establishing a session with a set top terminal by defining an in-band communications channel for transporting content to the set top terminal, and communicating to the set top terminal via...
08/04/2009
7559070Moving image distribution system, moving image dividing system, moving image distribution program, moving image dividing program, and recording medium storing moving image distribution program and/or moving image dividing program
A moving image distribution system, wherein the user can view content moving images at no charge, and the provider of the content moving images can prevent a drain of the moving image contents and can protect the copy right thereof, as a copy right holder, without f...
07/07/2009
7552457Method of controlling descrambling of a plurality of program transport streams, receiver system and portable secure device
A method of controlling descrambling of a plurality of program transport streams received by a receiver system comprises receiving a sequence of messages in a conditional access sub-system (9,10) comprised in said receiver system, each message being associate...
06/23/2009
7526785Trusted computing platform for restricting use of data
A client/server system has a client platform adapted to provide restricted use of data provided by a serve. The client platform comprises a display, secure communications means, and a memory containing image receiving code for receiving data from a server by the sec...
04/28/2009
7475415Receiver, distribution method of release information and distribution method of contents
In the case when password data (PW1) added to a TV broadcasting signal and password data (PW2) transmitted from an Internet connection section (2) have a predetermined correlation with each other, the display section (3) is allowed to dis...
01/06/2009
7421082Data delivery method and data delivery system using sets of passkeys generated by dividing an encryption key
A data delivery system providing multipoint delivery of encrypted digital data to specific destinations. A plurality of pieces of key information are generated on the basis of an encryption key specific to each digital data item to be delivered. The multiple pieces ...
09/02/2008
7409562Method and apparatus for encrypting media programs for later purchase and viewing
A system and method for storing and retrieving program material for subsequent replay is disclosed. The method includes accepting a receiver ID associated with a receiver key stored in a memory of the receiver, determining a pairing key for encrypting communications...
08/05/2008
7409702Auxiliary program association table
A method of identifying programs in a digital video communication system, consistent with certain embodiment of the present invention involve generating an auxiliary program association table (PAT) and an auxiliary program map table (PMT), wherein the auxiliary PAT ...
08/05/2008
7401232Content playback apparatus method and program and key management apparatus and system
A key management apparatus which can be used to encrypt/decrypt content data in a content playback device includes a storing unit for storing a secret key, a key information decrypting unit for decrypting encrypted key information and an updating unit operable to up...
07/15/2008
7398540System and method for tuning channels using a central point of control
Systems and methods for tuning channels within a home entertain system by connecting multiple consumer electronics devices to a central electronics device with an internal tuner. The consumer electronics devices are connected in a hub and spoke configuration, with e...
07/08/2008
7394834Common 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 identified by respective PIDs wherein an intermediate data stream is provid...
07/01/2008
7386128Conditional access system providing access to multiple programs or services
A conditional access subsystem is proved which is to reside with an end-user for receiving, decrypting and decoding all programs distributed by a content provider that the end user is entitled to access so that the decrypted and decoded programs are available for di...
06/10/2008
7383562Restricted reception device for digital cable broadcasting system, and reception system and method using the same
A restricted reception device enabling a subscriber receiver to selectively receive broadcasting data transferred via a digital cable broadcasting network, includes: a demultiplexer for receiving broadcasting data and an ECM including a CW from the subscriber receiv...
06/03/2008
7383561Conditional access system
A conditional access system in which entitlement control messages (ECMs) containing the encryption keys used to encrypt a program transmission, are sent to a set-top box over a secure communications channel separate from the channel used for transmission of the encr...
06/03/2008
7382884Key management for content protection
A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising: providing a plurality of authorized devices; dividing the plurality of...
06/03/2008
7383438System and method for secure conditional access download and reconfiguration
A method of securely downloading at least one of conditional access software (CAS), Digital Rights Management software (DRMS), Trusted Domain Software (TDS), and Gaming Security Software (GSS) includes presenting a specialized entitlement management message (EMM) to...
06/03/2008
7380265System for monitoring direct broadcast wireless signals
A system and method for monitoring direct broadcast satellite signals. In a most general embodiment, the invention (10) includes a mechanism (20) for receiving direct broadcast wireless signals encoded in accordance with a DSS transport protocol. The r...
05/27/2008
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