| 5809139 |
Watermarking method and apparatus for compressed digital video |
| Sep-15-1998 |
A digital watermarking method and apparatus allows for the watermarking of a digital video signal in a compressed form, thereby allowing watermarking of a pre-compressed video sequence without requiring... |
| 6219788 |
Watchdog for trusted electronic content distributions |
| Apr-17-2001 |
A computer watchdog system monitors and controls distribution content sent form producers, through distributors, to subscribers. The computer watchdog system acting to ensure the just execution of agreements... |
| 6026193 |
Video steganography |
| Feb-15-2000 |
An identification code signal is hidden in a carrier signal (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned. The carrier... |
| 5488658 |
Video signal scrambling and descrambling apparatus |
| Jan-30-1996 |
A common circuit is used for scrambling and descrambling video signals. A memory stores key data. During scrambling the output of the memory is transmitted to a read address counter through an address... |
| 4626909 |
Video signal recording and reproducing system with automatic channel and time selection |
| Dec-2-1986 |
A video recorder for automatically recording information being broadcast on at least one predetermined channel at a predetermined time comprises a tuner which tunes to any one of a plurality of channels... |
| 5668873 |
Video signal processor with copy prevention function |
| Sep-16-1997 |
A video signal processor is capable of executing on/off control of a copy inhibiting process and rendering extremely difficult any illegal cancellation of the copy inhibiting process by a third person.... |
| 6968059 |
Video information generating apparatus, video communication terminal, video distribution server, and video information system |
| Nov-22-2005 |
The conventional multimedia communication terminals require the implementation of a camera unit for video input and a video encoder for generating encoded video streams. This configuration is expensive... |
| 5054064 |
Video control system for recorded programs |
| Oct-1-1991 |
A video system includes a central facility and a terminal. Means are provided for playing a video recording medium storing a video program including a series of television fields including a first field... |
| 7003731 |
User control and activation of watermark enabled objects |
| Feb-21-2006 |
Methods and systems for associating watermark enabled objects with machine behaviors. Machine behaviors refer to actions by devices or systems in response to a triggering event. Examples of these behaviors... |
| 6925448 |
Usage rights grammar and digital works having usage rights created with the grammar |
| Aug-2-2005 |
A digital work recorded on a computer readable media for use within a system having at least one repository for enforcing use of digital content in accordance with usage rights associated with the digital... |
| 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... |
| 6529949 |
System, method and article of manufacture for remote unlocking of local content located on a client device |
| Mar-4-2003 |
A system, method and article of manufacture are provided for remotely controlling content stored on a local computer connected to a network system such as the Internet. The invention allows content such... |
| 6453420 |
System, method and article of manufacture for authorizing the use of electronic content utilizing a laser-centric medium |
| Sep-17-2002 |
A system, method, and article of manufacture is provided for tracking the distribution of content electronically. First, an electronic storage medium tracking identifier is incorporated onto an electronic... |
| 6069955 |
System for protection of goods against counterfeiting |
| May-30-2000 |
A visible seal or label containing a serial number is placed in plain view on the product packaging. The visible label contains the serial number as well as a first public key encrypted version of the... |
| 6466670 |
System for preventing playback of unauthorized digital video recordings |
| Oct-15-2002 |
This invention discloses an anti-piracy system including video representation signature apparatus for computing a forbidden signature of a forbidden video representation, communication apparatus for communicating... |
| 4837737 |
System for detecting origin of proprietary documents generated by an apparatus for processing information such as words, figures and pictures |
| Jun-6-1989 |
A word processor includes a work station having a keyboard and a display device, a main unit for forming a text file in accordance with input commands entered by the keyboard, an external memory unit for... |
| 6728773 |
System for controlling and regulating distribution of intellectual properties using internet protocol framework |
| Apr-27-2004 |
A method and system thereof for controlling and regulating the distribution of intellectual properties using Internet Protocol and a plurality of controlling processes and applications. An intellectual... |
| 6285774 |
System and methodology for tracing to a source of unauthorized copying of prerecorded proprietary material, such as movies |
| Sep-4-2001 |
To enable the source of an unauthorized copy of an information-bearing medium, such as a video DVD, to be traced, a compressed digital signal stream to be stored on the medium is altered to include "running... |
| 6100916 |
System and method for subscriber controlled signal blocking |
| Aug-8-2000 |
A technique for the blocking of individual programs and/or portions of programs transmitted in a source signal, e.g., a cable television signal. In particular, individual programs and/or portions of programs... |
| 6122372 |
System and method for encapsulating transaction messages with verifiable data generated identifiers |
| Sep-19-2000 |
A data structure and method are disclosed for encapsulating a message with a verifiable message ID and a verifiable identification of message interpretation information. The encapsulated message includes... |
| 5848155 |
Spread spectrum watermark for embedded signalling |
| Dec-8-1998 |
A watermark is embedded into audio/video/image/multimedia data using spread spectrum methodology. The watermark is extracted from watermarked data without the use of an original or unwatermarked version... |
| 6742129 |
Software security mechanism |
| May-25-2004 |
A load program causes a user's computer to generate an intermediate code as a function of a read time from the computer's system clock and an operating system ID. The software provider receives the intermediate... |
| 6035177 |
Simultaneous transmission of ancillary and audio signals by means of perceptual coding |
| Mar-7-2000 |
A communication system for simultaneously transmitting ancillary codes and audio signals via a conventional audio communications channel using perceptual coding techniques is disclosed. An encoder monitors... |
| 6546490 |
Signal transmision method |
| Apr-8-2003 |
A signal transmission method applicable to prevention of modification or alteration of the playback mode information, such as copying management information or charging information. The playback mode information... |
| 6108423 |
Signal reproducing/recording/transmitting method and apparatus and signal record medium |
| Aug-22-2000 |
A signal reproducing apparatus for prohibiting copying or unauthorized use. The apparatus includes a copying management information decision circuit 19 for discriminating the state of the copying management... |
| 6526510 |
Signal reproducing method and apparatus, signal recording method and apparatus and signal recording system |
| Feb-25-2003 |
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 20... |
| 6950938 |
Service identification tag and communications system using the same |
| Sep-27-2005 |
Disclosed is a service identification tag for being used in accessing an information transmission server on the Internet. The tag is formed combining an exclusive graphic pattern that can be recognized... |
| 4930158 |
Selective video playing system |
| May-29-1990 |
A classification code, recorded repeatedly along with program material, is recovered on playing a video recording, and used to inhibit replay if the recovered code matches any of a set of codes specified... |
| 6208735 |
Secure spread spectrum watermarking for multimedia data |
| Mar-27-2001 |
Digital watermarking of audio, image, video or multimedia data is achieved by inserting the watermark into the perceptually significant components of a decomposition of the data in a manner so as to be... |
| 5930369 |
Secure spread spectrum watermarking for multimedia data |
| Jul-27-1999 |
Digital watermarking of audio, image, video or multimedia data is achieved by inserting the watermark into the perceptually significant components of a decomposition of the data in a manner so as to be... |
| 5172413 |
Secure hierarchial video delivery system and method |
| Dec-15-1992 |
Disclosed is an improved system for the delivery of entertainment and educational programming from a plurality of electronic libraries to a plurality of users. Users actuate a hand operated control device... |
| 5355409 |
Scramble codec and a television receiver incorporating the same |
| Oct-11-1994 |
A scramble codec comprises a latch means for holding an ID number for securing television or other communication data, a pair of memories which can be alternately loaded with input communication data signals... |
| 6785817 |
Reprogrammable subscriber terminal |
| Aug-31-2004 |
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. The... |
| 6564324 |
Reprogrammable subscriber terminal |
| May-13-2003 |
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. The... |
| 6937729 |
Representing entitlements to service in a conditional access system |
| Aug-30-2005 |
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 set top units... |
| 5323244 |
Recording and reproducing apparatus |
| Jun-21-1994 |
A recording and reproducing apparatus suitable for keeping the secrecy of video and audio signals recorded in, for example, a video tape recorder for private use to a high degree. A recording portion of... |
| 5046090 |
Recorded medium for video control system |
| Sep-3-1991 |
A video recording medium storing a video program includes a series of television fields including a first field containing both a random digital code encrypted according to a code encryption key and program... |
| 6674858 |
Receiving device, recording and reproducing device and receiving/recording-reproducing system for digital broadcast signal |
| Jan-6-2004 |
A receiving device comprises a signal demodulator circuit for demodulating an encrypted video signal and attribute information including information for decoding an encryption, an attribute information... |
| 6889321 |
Protected IP telephony calls using encryption |
| May-3-2005 |
Communication information transmitted in the broadband communication system may be in a packet format and secured using encryption techniques, for example encryption software, including a means for providing... |
| 6952685 |
Music distribution system and associated antipiracy protection |
| Oct-4-2005 |
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 an interactive... |
| 6389542 |
Multi-level secure computer with token-based access control |
| May-14-2002 |
A multilevel computer security system including a computer with multiple security subsystems for secure data storage and data communications at each security level, a smart-card reader for controlling... |
| 6351817 |
Multi-level secure computer with token-based access control |
| Feb-26-2002 |
A multilevel computer security system including a computer with multiple security subsystems for secure data storage and data communications at each security level, a smart-card reader for controlling... |
| 6310962 |
MPEG2 moving picture encoding/decoding system |
| Oct-30-2001 |
An MPEG2 moving picture and encoding/decoding system to provide digital copy protection of digital moving picture data. The MPEG2 moving picture encoder discrete cosine transforms a video input signal... |
| 7006630 |
Methods and apparatus for digital content protection |
| Feb-28-2006 |
A multilayer digital content protection system, particularly for a digital cinema application is provided. Detection of unauthorized activity at the time it is occurring is provided using a first protection... |
| 5699427 |
Method to deter document and intellectual property piracy through individualization |
| Dec-16-1997 |
A system for identifying the authorized receiver of any particular copy of a document. More specifically, each particular copy of a document is fingerprinted by applying a set of variations to a document,... |
| 6363486 |
Method of controlling usage of software components |
| Mar-26-2002 |
Controlling the usage of a software component by an application program in an end user computer system includes obtaining an identifier of the application program by a controller computer system and generating... |
| 6990584 |
Method of and apparatus for restricting copy of digital information, and apparatus for recording digital information |
| Jan-24-2006 |
An apparatus for restricting a copy of digital information is provided with a detecting device for detecting a first watermark, which is buried in the digital information and comprises a first signal generated... |
| 6754346 |
Method for tracing the distribution of physical digital media |
| Jun-22-2004 |
A method for tracing the distribution of physical digital media and reporting feedback to a content provider regarding whether the profile of the user of the physical digital media corresponds to known... |
| 6731756 |
Method for securing video images |
| May-4-2004 |
A method for protecting the video memory on a computer system from being illicitly copied. The invention decrypts a previously encrypted image and displays it on the video screen. During the time the image... |
| 5619571 |
Method for securely storing electronic records |
| Apr-8-1997 |
An improved method of storing or retrieving electronic records. An image identification code and time data provided by a trusted source, as well as a password, are combined to generate a key. The image... |
