| 6167136 |
Method for preventing copying of digital video disks |
| Dec-26-2000 |
A method for securely storing analog or digital data on a data storage medium. An analog information signal is combined with a noise signal. The composite noise and information signal is encrypted with... |
| 6792532 |
Method for encrypting data using IEEE 1394 serial bus network |
| Sep-14-2004 |
A data encryption method for an IEEE 1394 serial bus network, a data encryption method for an IEEE 1394 serial bus network, comprising the steps of requesting a private encryption at a data transmission... |
| 4890319 |
Method for controlling copying of protected information transmitted over a communications link |
| Dec-26-1989 |
A subscription television system for distributing program material protected by copyright to subscribers comprises a transmitter including a data insertion circuit for inserting a control bit in a transmitted... |
| 6898286 |
Method and system verifying product licenses using hardware and product identifications |
| May-24-2005 |
The present invention provides a method and system for verifying software product licenses using hardware and product identifications. Specifically, the present invention provides a method and system for... |
| 6539475 |
Method and system for protecting digital data from unauthorized copying |
| Mar-25-2003 |
Data is protected from unauthorized copying by rescrambling an unauthorized version of the data, but descrambling an authorized version of the data. This is done using a trigger signal. One property of... |
| 6889210 |
Method and system for managing security tiers |
| May-3-2005 |
Techniques for reorganizing security levels without implicating accessibility to secured files classified in accordance to one of the security levels are disclosed. In a case of adding a new security level,... |
| 6993131 |
Method and system for managing rights in digital information over a network |
| Jan-31-2006 |
A method and system for distributing digital information is disclosed. Preferably, a user acquires a tangible object which contain a code authorizing access to the digital information. The user reads the... |
| 6397334 |
Method and system for authenticating objects and object data |
| May-28-2002 |
A system and method for authenticating an image of an object, include at least one identifier associated with the object, a receiver for interrogating the at least one identifier to produce identification... |
| 6209096 |
Method and device for storing main information with associated additional information incorporated therein |
| Mar-27-2001 |
To store main information with associated additional information incorporated therein, data constituting the additional information is divided into a plurality of small-size data pieces of, e.g., one bit.... |
| 5710834 |
Method and apparatus responsive to a code signal conveyed through a graphic image |
| Jan-20-1998 |
An identification code signal is impressed on a carrier to be identified (such as an electronic data signal or a physical medium) in a manner that permits the identification signal later to be discerned... |
| 6959290 |
Method and apparatus for tracking states of digital works |
| Oct-25-2005 |
A method and system for controlling use of digital works in accordance with usage rights associated with the digital works. The method includes the steps of receiving a request to use a digital work, and... |
| 6848049 |
Method and apparatus for the authentication of integrated circuits |
| Jan-25-2005 |
A method for the authentication of an integrated circuit in an application system comprises, for the integrated circuit: detecting an activation scenario, and then modifying at least one of its responses.... |
| 6978256 |
Method and apparatus for selling digital contents, processing program thereof and recording medium for the program |
| Dec-20-2005 |
The present invention relates to a digital contents selling system for selling digital contents. Identification information of digital contents selected by a customer is received. Personal digital contents... |
| 6944771 |
Method and apparatus for overcoming a watermark security system |
| Sep-13-2005 |
To overcome a watermark security system that is based on a limited set of possible watermark values, a collection of authentic watermarked material is created, and a substitution system provides material... |
| 4595950 |
Method and apparatus for marking the information content of an information carrying signal |
| Jun-17-1986 |
An information signal (INF) which is transmitted in coded form (CINF) from a signal source (RC) to a signal receiver (4, 5) is decoded at the receiver and at the same time marked (MINF) by the introduction... |
| 6912652 |
Method and apparatus for imprinting ID information into a digital content and for reading out the same |
| Jun-28-2005 |
After a digital content is loaded into an information terminal such as a PC, ID information unique to a viewer or a user of the PC is imprinted into the content. The ID information is imprinted into a... |
| 6931129 |
Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit |
| Aug-16-2005 |
A video source device includes a cipher unit. The video source device uses the cipher unit to generate cipher bits for ciphering video to be transmitted to protect the video from unauthorized copying.... |
| 6188995 |
Method and apparatus for enforcing software licenses |
| Feb-13-2001 |
The present invention comprises a method and apparatus for enforcing software licenses for resource libraries such as an application program interface (API), a toolkit, a framework, a runtime library,... |
| 6954738 |
Method and apparatus for distributing enforceable property rights |
| Oct-11-2005 |
An enforceable property right and a system for controlling the manner of use of an item in accordance with usage rights. The enforceable property right includes an item ticket having a security mechanism... |
| 5659613 |
Method and apparatus for copy protection for various recording media using a video finger print |
| Aug-19-1997 |
A method and apparatus for copyright protection for various recording media such as Digital Video Discs (DVDs) uses a combination of a Video Finger Print Signal and an Authenticating Signature to permit... |
| 5513260 |
Method and apparatus for copy protection for various recording media |
| Apr-30-1996 |
A method and apparatus for copyright protection for various recording media such as compact discs (CDs) uses a combination of symmetrical and asymmetrical data encryption to permit the player to handle... |
| 6999948 |
Memory card |
| Feb-14-2006 |
A memory card 110 extracts a session key Ks from the data applied onto a data bus BS3 by carrying out a decryption process. An encryption processing unit 1406 encrypts a public encryption... |
| 6868229 |
Interfering with illicit recording activity by emitting non-visible radiation |
| Mar-15-2005 |
Often, during an event, such as a movie, play, concert, opera, etc., viewers of the event attempt to illicitly record the event. Such illicit recording attempts may be interfered with by using emitters... |
| 6721793 |
Intellectual property over non-internet protocol systems and networks |
| Apr-13-2004 |
A method and system thereof for implementing and controlling the electronic distribution of intellectual property using protocols other than the Internet Protocol. A request for intellectual property is... |
| 6748538 |
Integrity scanner |
| Jun-8-2004 |
A platform featuring memory which contains a plurality of software components and a manifest which includes a digest of each of the plurality of the software components and a processor which is coupled... |
| 6999587 |
Information recording/reproducing system |
| Feb-14-2006 |
An information recording medium 1 is provided with: a user data recording part 3 which records user data; a random-patter-information recording part 4 which records random pattern information... |
| 6526146 |
Information recording system |
| Feb-25-2003 |
An optical disc recorder/reproducer, a personal computer, a television receiver, an IRD and so forth are connected mutually via a 1394 serial bus. When data transmitted from the personal computer to the... |
| 5940505 |
Information recording method and apparatus, function recording method and apparatus, and information reproducing method and apparatus |
| Aug-17-1999 |
A record signal corresponding to record information to be recorded to a record medium is scrambled, and the scrambled record signal is recorded to the record medium. The information recording method is... |
| 6810131 |
Information processing method and apparatus |
| Oct-26-2004 |
In an image encoding apparatus for receiving and encoding an image signal, the input image signal is encoded in units of blocks in accordance with an encoding parameter via a DCT device, quantizer, and... |
| 6742118 |
Information processing apparatus, information processing method, data recording medium, and information processing system |
| May-25-2004 |
An improvement in protecting information transmitted via a network from illegal copying is disclosed. While data input from an information provider via a network is stored in a storage device, an ID inherent... |
| 6519701 |
Information processing apparatus, information processing method, and transmission medium |
| Feb-11-2003 |
An Open Descriptor demanding an access right is transmitted from a personal computer to a DVD player. In response to this demand, the DVD player transmits either an Accept response or a Reject response.... |
| 6792538 |
Information generating method and apparatus, information reproducing method and apparatus, and information record medium |
| Sep-14-2004 |
An information generating apparatus for generating output information to be outputted is provided with: an error correcting code adding device for adding an error correction code, which is used for an... |
| 6334187 |
Information embedding method, information extracting method, information embedding apparatus, information extracting apparatus, and recording media |
| Dec-25-2001 |
An apparatus for embedding secret information in an image signal transmitted with a shape signal showing the shape of an object is described. This apparatus comprises an embedding position decision unit... |
| 6789198 |
Information distribution and processing system |
| Sep-7-2004 |
A method for delivering digital data to a plurality of processing units is disclosed. A plurality of portable memory device containing a first set of digital data is distributed to the plurality of processing... |
| 6772344 |
Information distribution and processing system |
| Aug-3-2004 |
A method for delivering computer code to a plurality of processing units is disclosed. A first set of digital data is distributed to the plurality of processing units. The first set of digital data is... |
| 6609202 |
Information distribution and processing system |
| Aug-19-2003 |
A method for delivering computer code to a plurality of processing units is disclosed. A first set of digital data is distributed to the plurality of processing units. The first set of digital data is... |
| 6707564 |
Image forming apparatus |
| Mar-16-2004 |
An object of the invention is to allow secure identification of an image forming apparatus from an image on a recording medium on which the black image has been formed, thereby preventing leakage of secret... |
| 6704869 |
Extracting digital watermarks using logarithmic sampling and symmetrical attributes |
| Mar-9-2004 |
A digital watermark reader performs a logarithmic sampling of a watermarked media signal to produce a sampled signal. It then analyzes the sampled signal to detect attributes associated with a watermark... |
| 6978021 |
Encryption method for distribution of data |
| Dec-20-2005 |
A method and system for securing a data product for mass distribution. An authorization server may encrypt a portion of a data product. Further, the authorization server may assemble an authorization key... |
| 4972471 |
Encoding system |
| Nov-20-1990 |
The method of encoding a given recorded signal made up of a host of different frequencies comprises modifying the recorded signal to selectively alter in a known manner a portion of the recorded signal... |
| 5530751 |
Embedded hidden identification codes in digital objects |
| Jun-25-1996 |
A method and apparatus for encoding identification information into a stream of digital data representing an object. The digital data representing an object is modified to add embedded identification information... |
| 6901386 |
Electronic asset lending library method and apparatus |
| May-31-2005 |
A electronic asset lending library method and apparatus enables the electronic management and reassignment of licenses for unused electronic assets installed on computers connected through a communications... |
| 6816972 |
Disk recording medium, reproduction device and method for performing reproduction on disk recording medium |
| Nov-9-2004 |
A device and method for protection of legitimate software against used software and counterfeit software in recording media. The device includes a disk is set in a main unit. A specific title code is read,... |
| 7006661 |
Digital watermarking systems and methods |
| Feb-28-2006 |
The present invention relates to digital watermarking systems and methods. In a first implementation, so-called movie studio rough-cuts are watermarked to provide a forensic tracking clue or to provide... |
| 6725372 |
Digital watermarking |
| Apr-20-2004 |
The invention is a system for digital watermarking that operates on a conventional digital video stream to etch, on hand, and read, on the other hand, digital watermarks in the stream that do not visibly... |
| 6853731 |
Digital video recorder employing a unique ID to interlock with encrypted video programs stored on a storage device |
| Feb-8-2005 |
The present invention may be regarded as a digital video recorder (DVR) comprising a storage device for storing an encrypted video program, a unique ID for interlocking the encrypted video program with... |
| 6839851 |
Digital signal processing apparatus |
| Jan-4-2005 |
If content is transmitted/received through a digital signal bus, protection of copyright causes a problem because of no deterioration in quality. Accordingly, authentication is required. The quantity of... |
| 5521978 |
Digital signal processing apparatus |
| May-28-1996 |
Digital signal processing apparatus in which compressed frequency components of a digital signal are processed to selectively achieve fade-in, fade-out and scene change effects and where the digital signal... |
| 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... |
| 5719943 |
Digital information signal transmitting/receiving method and system |
| Feb-17-1998 |
A digital information signal transmitting/receiving method and system having a transmitter for transmitting an encrypted digital information signal and a plurality of receivers for receiving the encrypted... |
