Matches 1 - 50 out of 228 1 2 3 4 5 >
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7620811 Server device and program management system  
A server apparatus includes a CPU, a RAM, a cipher processing unit for carrying out encryption and decryption, a communication processing unit for carrying out communication with an information...
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...
7587603 Protecting content from illicit reproduction by proof of existence of a complete data set via self-referencing sections  
Data items are selected for inclusion in a data set so as to discourage a transmission of the entire set. Each data item includes section(s) which constitute(s) the complete data set. Each section...
7577846 Mechanism of matching between a receiver and a security module  
System for controlling the transmission of information between a receiver and a security module, especially for a pay television system, in which the transmitted information is encrypted and...
7555123 Processing an MPEG elementary stream in a conditional access overlay environment  
Processing an MPEG elementary stream contained in multiple PID streams in a conditional access overlay environment. A multi-program transport stream contains numerous video and audio elementary...
7549160 Method and system for authenticated access to internet protocol (IP) multicast traffic  
A method and system for authenticated access to multicast traffic receives a request for a user to join a multicast channel. Access privileges of the user to the multicast channel are...
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....
7492897 Conditional access system for broadcast digital television  
A method for managing access to scrambled broadcast or transmitted events received from a variety of service providers (including broadcast television networks, cable television networks, digital...
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...
7403622 Process for managing a symmetric key in a communication network and devices for the implementation of this process  
A symmetric key management process in a communication network comprising a source device furnished with a source of data to be broadcast over the network and at least one receiver device intended...
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...
7400725 Information recording medium for recording a scrambled part of content information, and method and apparatus for reproducing information recorded therein  
An information recording medium, such as an optical disk or the like, is provided for recording at least copyrighted content information and cipher key information. A part of the content...
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...
7380137 Content guard system for copy protection of recordable media  
A system and method for enabling broadcast programs to be copied once only by consumer recorders includes writing a unique media identification on each blank disk to which content is to copied in a...
7370018 Systems and methods for processing claims in real-time  
Claim processing system providing an interface to permit pharmacy and medical management systems to use the Internet to transmit third-party insurance claims on a claim-by-claim basis in real-time...
7336788 Electronic book secure communication with home subsystem  
The invention, an electronic book selection and delivery system, is a new way to distribute books and other textual information to bookstores, libraries and consumers. The primary components of the...
7310423 Processing multiple encrypted transport streams  
A single decryption engine is used for decrypting a plurality of encrypted transport streams. Packets in each of the plurality of encrypted transport streams are tagged with a tag value to indicate...
7305086 Reducing problems caused by variations in watermark detection results  
Detection of watermarks in digital content by a system having a recording device and a playback device may be accomplished in such as a way as to improve the interoperability of the recording and...
7272227 Delivery of data via omnidirectional digital transmission  
Delivery of audiovisual data may be accomplished using a satellite system. The user may have a set-top box connected to a satellite dish and a network connection. An operator server may receive a...
7251329 Method and system for providing secure subscriber content data  
A personalized smart card stores therein public and private cryptography keys stored which are used to securely request and receive subscriber content data from a service provider, utilizing a...
7246246 System for keying protected electronic data to particular media to prevent unauthorized copying using a compound key  
A system an method for distribution of electronic data over a network infrastructure that includes a client device for operation by a user desiring to receive the electronic data and server that...
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....
7233670 Signal tracing system and method  
A system and a method are for determining the origin of a signal received by a pay television subscriber in a given region. A system includes an encryption device located at a main operator, a...
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....
7224799 Digital watermarking device, digital watermark insertion method and digital watermark detection method  
When inserting several types of digital watermark information into the digital information, the visual time stamp detection circuit extracts the time stamps corresponding to the visual data in the...
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...
7095855 Message identification with confidentiality, integrity, and source authentication  
A method for securely encoding and transmitting a message by an originating device to one of a plurality of recipient devices, said message being associated with a particular one of a plurality of...
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...
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...
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...
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...
7051355 Receiving apparatus, receiving method, and providing medium  
In a step S 1 , when the user executes a tuning operation (a service-number input operation) on an input section, the information is output to a control section. In a step S 3 , the control section...
6996237 Apparatus and methods for including codes in audio signals  
Apparatus and methods for including a code having at least one code frequency component in an audio signal are provided. The abilities of various frequency components in the audio signal to mask...
6976165 System and method for secure storage, transfer and retrieval of content addressable information  
An algorithm (such as the MD 5 hash function) is applied to a file to produce an intrinsic unique identifier (IUI) for the file (or message digest). The file is encrypted using its IUI as the key...
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,...
6968018 Digital broadcast receiving apparatus, and a method for receiving digital broadcasts  
A receiving apparatus receives digital broadcast signals from a plurality of broadcasting companies in different receiving modes from each other at low cost. It is determined to what limited...
RE38829 Viewing restricting method and viewing restricting apparatus  
A method and apparatus for securely restricting the viewing of television programs. When a television program has been received along with rating data associated with a rating of the television...
6952685 Music distribution system and associated antipiracy protection  
Music is blanket transmitted (for example, via satellite downlink transmission) to each customer's computer-based user station. Customers preselect from a list of available music in advance using...
6937730 Method and system for providing content-specific conditional access to digital content  
Content level filtering or masking of digital content that is broadcast, multicast, or otherwise distributed to receivers in a communications system. Instead of controlling the content only at the...
6937729 Representing entitlements to service in a conditional access system  
A cable television system provides conditional access to services. The cable television system includes a headend from which service “instances”, or programs, are broadcast and a plurality of...
6920222 Conditional access system enabling partial viewing  
A conditional access system includes an EMM (Entitlement Management Message) analyzer for retrieving partial viewing authorization information. When the partial viewing authorization information...
6912513 Copy-protecting management using a user scrambling key  
The present invention is a method and apparatus for providing copy protection for a content. A descrambler descrambles the content delivered by a content provider using a local key. A key generator...
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...
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...
6859878 Universal userid and password management for internet connected devices  
An improved system, method, and computer program product is provided to manage userid/password combinations by utilizing a universally accessible Internet location. This site stores and manages an...
6851063 Digital video recorder employing a file system encrypted using a pseudo-random sequence generated from a unique ID  
A digital video recorder (DVR) is disclosed comprising a unique ID, a hard disk drive (HDD) for storing a plurality of encrypted video programs and an encrypted file system, the encrypted file...
6810525 Impulse pay per use method and system for data and multimedia services  
A method and system are provided for impulse purchasing of services over a communication network, such as a cable or satellite television network. Such services can include games or information...
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...
6744892 Method and apparatus for geographically limiting service in a conditional access system  
A cable television system provides conditional access to services. The cable television system includes a headend from which service “instances”, or programs, are broadcast and a plurality of...
6738912 Method for securing data relating to users of a public-key infrastructure  
The inventive method allows to secure data relating to users of a public key infrastructure who may present certificates ( 11 ) at an institution ( 30 ) in order to initiate transactions. For this...
Matches 1 - 50 out of 228 1 2 3 4 5 >