| 5537473 |
Video recorder system |
| Jul-16-1996 |
A video recorder system adapted to receive subscription television services is of the type which controls access to the subscription services by means of a smart card. Where payment is due for each program... |
| 6910022 |
Usage rights grammar and digital works having usage rights created with the grammar |
| Jun-21-2005 |
A system for associating usage rights with digital content. Usage rights are created from a grammar. The usage rights specify a manner of use indicating one or more stated purposes for which the digital... |
| 6708157 |
System for controlling the distribution and use of digital works using digital tickets |
| Mar-16-2004 |
A system for controlling the distribution and use of digital works using digital tickets. In the present invention, a "digital ticket" is used to entitle the ticket holder to exercise some usage right... |
| 6944734 |
Storage apparatus and access control method |
| Sep-13-2005 |
A storage apparatus is capable of using a storage medium having at least a first region for storing therein data and a second region for storing therein both use permission discrimination information indicative... |
| 5666412 |
Secure access systems and methods utilizing two access cards |
| Sep-9-1997 |
A CATV system including a CATV network and apparatus for transmitting over the CATV network information to a multiplicity of subscriber units, each including a CATV decoder and an IC card reader and writer... |
| 5321750 |
Restricted information distribution system apparatus and methods |
| Jun-14-1994 |
A system for securely providing restricted display information having an encoder-transmitter for transmitting selected update data using information identification codes as enabling reception keys and... |
| 6714650 |
Recording of scrambled digital data |
| Mar-30-2004 |
A system for transmitting and recording digital data is included. Further, a system for transmitting transmit scrambled audio data that is to be recorded on a mini disc reader is included. A system for... |
| 4012583 |
Pay TV control system |
| Mar-15-1977 |
A simple recyclable key and locking system for enabling a pay TV converter is disclosed. The key is a small tag such as might be attached to the room key of a hotel room and is to be turned in with the... |
| 4081832 |
Pay television system, method and apparatus |
| Mar-28-1978 |
An improved pay TV method and apparatus is disclosed, characterized in that the program to be broadcast is encoded to effect electrical inversion of selected groups of lines of the program, thereby to... |
| 4325078 |
Pay per view television control device |
| Apr-13-1982 |
An apparatus and method for providing limited access to broadcast television programming in a CATV System wherein each television subscriber is provided with a converter for converting broadcast television... |
| 5144663 |
Method of interactive communication between a subscriber and a decoder of a system of pay-television and decoder thereof |
| Sep-1-1992 |
A decoder comprising a microprocessor connected to a receiver of data of teletext and to a text generator for displaying information on the screen of a television receiver. Further, a CPTV-card (card pay-television)... |
| 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... |
| 5325431 |
Looking and listening fee collection system for pay broadcasting |
| Jun-28-1994 |
A looking and listening fee collection system for satellite broadcasting of this invention is designed to collect looking and listening fees for satellite broadcasting by using balances prestored in an... |
| 6822552 |
Key and lock device |
| Nov-23-2004 |
A key and lock device comprises a key and a standalone lock. The key has an electronic circuitry with a first memory and a contact. The lock has electronic circuitry with a memory, and a contact arranged... |
| 5619570 |
Information furnishing and collection system |
| Apr-8-1997 |
An information furnishing and collection system which allows rapid furnishing of information and flexible payment of a charge and collects information regarding a reaction of a user while enhancing the... |
| 4908834 |
High security pay television system |
| Mar-13-1990 |
A high security pay television system is provided in which television receivers include a decoder and with periodically changed removable memory modules. The decoder only functions to properly descramble... |
| 4907273 |
High security pay television system |
| Mar-6-1990 |
A high security pay television system is provided in which subscribers are provided with a decoder and with periodically changed removable memory modules. The decoder only functions to properly descramble... |
| 4807286 |
High security pay television system |
| Feb-21-1989 |
A high security pay television system is provided in which television receivers include a decoder and with periodically changed removable memory modules. The decoder only functions to properly descramble... |
| 4696034 |
High security pay television system |
| Sep-22-1987 |
A high security pay television system is provided in which subscribers are provided with a decoder and with periodically changed removable memory modules. The decoder only functions to properly descramble... |
| 5243651 |
Diagnostic method and apparatus for a cable television interdiction system |
| Sep-7-1993 |
A diagnostic method and apparatus for a cable television interdiction system is provided. One or more diagnostic modes each corresponding to a particular problem or state associated with the interdiction... |
| 6832319 |
Content guard system for copy protection of recordable media |
| Dec-14-2004 |
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 read-only... |
| 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... |
| 5155680 |
Billing system for computing software |
| Oct-13-1992 |
A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with... |
| 5047928 |
Billing system for computer software |
| Sep-10-1991 |
A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with... |
| 4796181 |
Billing system for computer software |
| Jan-3-1989 |
A computer software security and billing system is disclosed in which the application program is enciphered in accordance with an algorithm driven by a numeric key. The user's computer is provided with... |
| 4635113 |
Apparatus for descrambling transmitted scrambled television signals |
| Jan-6-1987 |
This invention relates to an apparatus for descrambling scrambled television signals including a scrambled video signal having a first scrambling pattern, a scrambled control signal having a second scrambling... |
| 6836791 |
Active stream format for holding multiple media streams |
| Dec-28-2004 |
An active stream format is defined and adopted for a logical structure that encapsulates multiple data streams. The data streams may be of different media. The data of the data streams is partitioned into... |
