| 6928419 |
Method and apparatus for repackaging portions of digital works as new digital works |
| Aug-9-2005 |
A method and system for creating a new digital work from one or more existing digital works having parts. A first part of a digital work has first usage rights associated therewith, the first usage rights... |
| 6421781 |
Method and apparatus for maintaining security in a push server |
| Jul-16-2002 |
A secure push server is disclosed. The push server is used for sending notifications to different wireless clients on different wireless networks. The push server allows information service providers to... |
| 5671276 |
Method and apparatus for impulse purchasing of packaged information services |
| Sep-23-1997 |
Impulse purchasing is provided for packages of services offered to consumers via an information network. A plurality of services is offered for individual purchase on an impulse basis via a user terminal... |
| 5594794 |
Method and apparatus for free previews of communication network services |
| Jan-14-1997 |
Limited duration previews of program offerings available for purchase via a communication network are provided in a cryptographically secure manner at virtually any time during the service. The invention... |
| 6092201 |
Method and apparatus for extending secure communication operations via a shared list |
| Jul-18-2000 |
A method and apparatus for extending secure communication operations via shared lists is accomplished by creating a shared list in accordance with authorization parameters by one user and subsequently... |
| 6587561 |
Key delivery in a secure broadcasting system |
| Jul-1-2003 |
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 from... |
| 4975951 |
IPPV programming distribution control system |
| Dec-4-1990 |
A distribution control system for controlling the distribution of scrambled impulse pay per view (IPPV) programming from a plurality of different IPPV programmers to a plurality of descramblers. The system... |
| 4245245 |
Interactive CATV system |
| Jan-13-1981 |
A two-way CATV system having a substantial number of terminals incorporates a central processor and transmitter system which continually interrogates the terminals at high speed, monitoring changes of... |
| 6704419 |
Information providing system |
| Mar-9-2004 |
An information providing terminal 3 notifies a mobile information terminal 1 of an item and a ciphered information body when a circuit between the mobile information terminal 1 and the information providing... |
| 6810525 |
Impulse pay per use method and system for data and multimedia services |
| Oct-26-2004 |
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 accompanying... |
| 5003591 |
Functionally modifiable cable television converter system |
| Mar-26-1991 |
A cable television converter with remotely modifiable functionality receives firmware downloaded over a cable television network. The integrity of the firmware is verified, and if valid, the firmware is... |
| 6735311 |
Encryption and decryption of multi-media data |
| May-11-2004 |
A method for ciphering multimedia includes the entering of an ciphering index in a definition data block of the multimedia data, this index pointing to an ciphering algorithm which is to be used. In response... |
| 6985586 |
Distributed information and storage system |
| Jan-10-2006 |
The aim of the present invention is to propose a method that allows the reduction of the bandwidth needs in a structure that implements an operating center and a plurality of user units, ensuring the availability... |
| 5721778 |
Digital signal transmitting method, digital signal receiving apparatus, and recording medium |
| Feb-24-1998 |
A digital signal transmitting method, a digital signal receiving apparatus, and a recording medium which ensure the security of fee-charged software information. When an image providing predetermined services... |
| 6681015 |
Digital recording/reproducing system |
| Jan-20-2004 |
A digital recording/reproducing system includes a set top box. The STB receives a digital television broadcast signal and transmits a scrambled data stream from a stream selector via an interface to a... |
| 5727065 |
Deferred billing, broadcast, electronic document distribution system and method |
| Mar-10-1998 |
An electronic document delivery system and method in which a broadcast center periodically sends a "catalog" of available documents to a receiving computer, thereby allowing a user to browse through the... |
| 4723283 |
Data transmission system |
| Feb-2-1988 |
This invention relates to a data transmission system in which information data is shuffled and the data service is received by those who paid the charges. According to this data transmission system, a... |
| 6097816 |
Crypt key system |
| Aug-1-2000 |
A crypt key system for decrypting encrypted data for use, by a permit key including a decryption key, comprising a database/charging center, a broadcasting station, a receiving device and a communication... |
| 5740246 |
Crypt key system |
| Apr-14-1998 |
The present invention provides a concrete structure for applying a crypt key system to a television system, a database system or an electronic commercial transaction system or the like. This system consists... |
| 5590202 |
Countdown system for conditional access module |
| Dec-31-1996 |
A digital conditional access module for a subscriber terminal comprises a decryption device including at least one PID register and an associated countdown register. The decryption device is enabled for... |
| 6978377 |
Copy protection using detailed copy control information |
| Dec-20-2005 |
Based on the detailed reproduction control information defining the reproduction control state of data to be transmitted, the CPU 12 of the data transmission apparatus creates a simplified reproduction... |
| 4878245 |
Control and metering system for pay television over a cable network |
| Oct-31-1989 |
An improved control and metering system for pay television distribution over a cable network. A control unit is located near each receiver on a subscribers premises and a secure filter, switching and metering... |
| 6633644 |
Conditional access system for controlling the access to a data content |
| Oct-14-2003 |
A conditional access system for controlling the access of receivers of end-users to data content transmitted from a data content source in an uplink system. The uplink system scrambles the content supplied... |
| 6584199 |
Conditional access system and method thereof |
| Jun-24-2003 |
A conditional access system (CAS) for processing signals between a pay broadcast management system and a digital receiver includes a resource subscriber management system (RSMS) for predetermining time(s)... |
| 4890321 |
Communications format for a subscription television system permitting transmission of individual text messages to subscribers |
| Dec-26-1989 |
A subscription television system in which individual decoders are enabled to receive individually addressed messages is disclosed. The composite signal, including video and teletext, also comprises addressed... |
| 6597790 |
Communication apparatus and a communication system |
| Jul-22-2003 |
A communication device according to the present invention comprises an enciphering transmitter for enciphering data and transmitting enciphered data, a counter for obtaining a count of a quantity of enciphered... |
| 6980652 |
Combination mastered and writeable medium and use in electronic internet appliance |
| Dec-27-2005 |
An optical medium uses a single structure or format (such as identical materials, layers and the like) for both a region for holding mastered data and a writeable area. In one aspect, a writeable region... |
| 4961109 |
Chargeable program receiving limit setting system in two-way cable television system |
| Oct-2-1990 |
A CATV television system in which a subscriber can only charge a maximum number of events before the central facility polls the subscriber's terminal unit for charged events. The subscriber's terminal... |
| 6990203 |
Cable television setback decoder automatic control |
| Jan-24-2006 |
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 controller. The... |
| 4751732 |
Broadcasting system |
| Jun-14-1988 |
Broadcasting stations send programs to subscribers via satellite scrambled signals. A subscriber inserts an IC card into a meter rate charging decoder to view/listen chargeable programs. Program codes... |
| 5661802 |
Auxiliary power and telephone signal distribution system |
| Aug-26-1997 |
A telephone and auxiliary power distribution system in a building has a flexible multi-conductor signal and power distribution cable; which cable originates from a central signal & power management facility... |
| 6256393 |
Authorization and access control of software object residing in set-top terminals |
| Jul-3-2001 |
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, associates... |
| 6470085 |
Application package and system for permitting a user to use distributed application package on the term of the use thereof |
| Oct-22-2002 |
A system for permitting only an authentic user to play a desired application contained in a distributed application package in one of predetermined operation, e.g., free play mode, charged mode, limit-attached... |
| 6304660 |
Apparatuses for processing security documents |
| Oct-16-2001 |
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. The... |
| 4598288 |
Apparatus for controlling the reception of transmitted programs |
| Jul-1-1986 |
A control system for use with recording apparatus enables the recording of programs simultaneously desired by a user and authorized by a program provider, typically a broadcaster. The broadcaster attaches... |
| 4183057 |
Actuating system for a rental television |
| Jan-8-1980 |
A television system specially constructed for rental use. Such a television system generally includes a key actuated switching system. When the key actuated system is turned on, it enables the televsion... |
