| 6898038 |
Method and apparatus for disc drive data security using fields in servo wedges |
| May-24-2005 |
The present invention includes a method and apparatus to write and read copy protected data on a disc drive storage system by encoding and decoding data to be copy protected using servo wedge data as the... |
| 6633877 |
Method and apparatus for delivery of selected electronic works and for controlling reproduction of the same |
| Oct-14-2003 |
An information distribution system, in accordance with one form of the present invention, includes a central information bank and a central transactional data base coupled to point-of-sale delivery systems.... |
| 5784523 |
Method and apparatus for defeating effects of color burst modifications to a video signal |
| Jul-21-1998 |
In the known color stripe process for preventing recording of video signals, the color burst present on each line of active video is modified so that any subsequent video tape recording of the video signal... |
| 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... |
| 6523113 |
Method and apparatus for copy protection |
| Feb-18-2003 |
Copy protection techniques that utilize a watermark and a permission key are disclosed. The copy protection techniques can provide single-copy copy protection in addition to different levels of copy protection.... |
| 5461674 |
Method and apparatus for controlling playback of recorded HDTV signals |
| Oct-24-1995 |
An HDTV receiver for restricting playback of HDTV signals encrypted with a level 1 encryption. The receiver includes an output port and an input port between which an external, controllable level 1 decryption... |
| 6687828 |
Method and apparatus for ciphering playback mode information for recording on record medium |
| Feb-3-2004 |
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... |
| 6961430 |
Method and apparatus for background caching of encrypted programming data for later playback |
| Nov-1-2005 |
A method and apparatus for enabling background caching of encrypted programming data on a storage medium for later playback in a digital video recorder (DVR) system. A set-top box (STB) equipped with a... |
| 6931534 |
Method and a device for encryption of images |
| Aug-16-2005 |
In a method and a device for partial encryption and progressive transmission of images, a first section of the image file is compressed at reduced quality without decryption, and a second section of the... |
| 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... |
| 6738906 |
Marking of electronic documents in order to expose unauthorized publication |
| May-18-2004 |
A method of marking information to be produced in order to expose unauthorized copying. In the method, a user identifier is defined, a source file containing a substantial part of the information produced... |
| 6131161 |
Marking a digitally encoded video and/or audio signal |
| Oct-10-2000 |
An electronic watermarking scheme is proposed that can significantly increase the security of copy protection mechanisms. The watermarking methods works at high level in the hierarchy of the (MPEG) source... |
| 5761301 |
Mark forming apparatus, method of forming laser mark on optical disk, reproducing apparatus, optical disk and method of producing optical disk |
| Jun-2-1998 |
An object of the present invention is to provide a marking forming apparatus, a method of forming a laser marking on an optical disk, a reproduction apparatus, an optical disk, and a method of manufacturing... |
| 6463539 |
Managing system for reproducing information composed of information recording medium, managing medium, and reproduction method and apparatus method therefor |
| Oct-8-2002 |
A user 11 loads a disc 13a and an IC card 16 into a reproduction apparatus 26. A reproduction managing information 14 and a reproduction permitting information 18 are read out from the disc 13a and the... |
| 6718046 |
Low visibility watermark using time decay fluorescence |
| Apr-6-2004 |
Media is embedded with an out-of-phase digital watermark. A first component of the digital watermark is printed using a first ultraviolet (UV) ink. The first UV ink includes a first fluorescence decay... |
| 5040210 |
Lockable tape cassette control system |
| Aug-13-1991 |
A tape cassette which locks up to prevent more than one play through of the information carrying portion of the cassette has a label with an encrypted unlocking combination for the cassette along with... |
| 7010124 |
Location dependent key for decrypting copy protected material on a recording medium |
| Mar-7-2006 |
Information to be recorded is encrypted using an encryption key based on information inherent in a recording medium. The information inherent in the recording medium is specific information on a disk.... |
| 6915278 |
License management method and system |
| Jul-5-2005 |
Improved license management system and method for a convertible floating license for software that permit conversion from one license state to a second license state to permit authorized license use and... |
| 5915018 |
Key management system for DVD copyright management |
| Jun-22-1999 |
A cryptographic system and method for secure distribution and management of cryptographic keys for use in a DVD copy protection scheme is disclosed. A DVD disc having compressed, encrypted content written... |
| 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... |
| 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... |
| 6104813 |
Interactive compact disc system |
| Aug-15-2000 |
A system for controlling the playing of rented compact discs on an end-user's compact disc player. The end-user obtains a validation disc on which is stored a control program and an expiry date. When the... |
| 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... |
| 6854061 |
Installing and controlling trial software |
| Feb-8-2005 |
According to one aspect of the invention, a method of creating a trial software product on a target system is provided. The method consists of intercepting file system calls from an installation process... |
| 6654888 |
Installing and controlling trial software |
| Nov-25-2003 |
According to one aspect of the invention, a method of creating a trial software product on a target system is provided. The method consists of intercepting file system calls from an installation process... |
| 6754347 |
Input/output unit, input/output method, and receiving unit |
| Jun-22-2004 |
A switching portion of an IRD supplies a non-descrambled TS (transport stream) received from a front end portion or a descrambled TS received from a descrambler to a DVCR connected to an IEEE 1394 interface.... |
| 6957335 |
Initializing, maintaining, updating and recovering secure operation within an integrated system employing a data access control function |
| Oct-18-2005 |
Techniques are provided for initializing, maintaining, updating and recovering secure operation within an integrated system. The techniques, which employ a data access control function within the integrated... |
| 6271886 |
Information transmitting unit and the method, information receiving unit and the method, and medium for the same |
| Aug-7-2001 |
The contents authoring unit classifies a program information into any one of the "information effective only in viewing", the information effective only in recording/reproducing, and the "information effective... |
| 6453118 |
Information transmission method, information duplication prohibiting method, information duplication prohibition device and information crevording medium |
| Sep-17-2002 |
The level of the spectrally spread anti-duplication control signal to be superimposed on an information signal such as a video signal is changed by using a random number RD generated by a random number... |
| 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... |
| 6772133 |
Information recording device and information reproducting device |
| Aug-3-2004 |
The information reproduction device for reproducing contents information based on license information added to the contents information and required for reproducing the contents information, includes a... |
| 6941283 |
Information recording device and information reproducing device |
| Sep-6-2005 |
The information reproduction device for reproducing contents information based on license information added to the contents information and required for reproducing the contents information, includes a... |
| 6477649 |
Information recording apparatus, information reproducing apparatus, and information distribution system |
| Nov-5-2002 |
An information recording apparatus comprises an encryption section encrypting contents information and also a license condition referred to limit use of the contents information and a decoding key for... |
| 6728379 |
Information processor and information processing method |
| Apr-27-2004 |
An information processor receives at a communication section thereof an encrypted content decryption key generated by encrypting, by a distribution encryption key, a content decryption key for decryption... |
| 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... |
| 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.... |
| 6618549 |
Information processing apparatus, information processing method and presentation medium including copy protection data from a non-compliant apparatus |
| Sep-9-2003 |
An information processing apparatus comprises an extracting circuit for extracting main information including first copy control information and auxiliary information representing attributes of the main... |
| 6370320 |
Information output device, information recording device, information duplication control system and recording medium of the same |
| Apr-9-2002 |
The invention intends to secure the control of duplicating information signals. In the duplication control method according to the invention, a main information signal containing a duplication control... |
| 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... |
| 6591009 |
Information embedding method, apparatus and recording medium |
| Jul-8-2003 |
To deeply encrypt and embed auxiliary information into image data, table generation means generates a table, based on a quantization error which occurs when image data S0 is converted from a first color... |
| 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... |
| 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... |
| 6631239 |
Image processing apparatus, image processing method and storage medium |
| Oct-7-2003 |
It is controlled that working such as image editing or the like is not reflected on the part concerning copyright information or the like never intended to be overwritten or erased by a user, so that image... |
| 6859877 |
Image processing apparatus and method, and computer readable memory medium storing program for executing image processing |
| Feb-22-2005 |
The invention provides an image processing apparatus comprising an input unit for inputting image data, a generation unit for generating security data for protecting the image data, a division unit for... |
| 6826290 |
Image processing apparatus and method and storage medium |
| Nov-30-2004 |
To provide a variety of methods for extracting digital watermark information from an image as correctly as possible. For example, a first pattern arrangement and a second pattern arrangement which is different... |
| 7036021 |
Image display device |
| Apr-25-2006 |
An authentication/decryption unit authenticates and decrypts video signals received from a video signal output device. An open-condition detector detects the open condition of a cabinet. A memory stores... |
| 6643451 |
Image data alteration preventing apparatus and alteration preventing method |
| Nov-4-2003 |
An image data alteration preventing apparatus according to the present invention comprises recording means for producing first alteration detecting data on the basis of image data, to record the produced... |
| 5757909 |
Illegal view and copy protection method in digital video system and controlling method thereof |
| May-26-1998 |
Illegal view and copy protection method in a digital video system for preventing an illegal user from viewing the digital video system and copying therefrom, by setting a descrambling method which decrypts... |
| 6684254 |
Hyperlink filter for "pirated" and "disputed" copyright material on the internet in a method, system and program |
| Jan-27-2004 |
A central repository server contains a reference list of Uniform Resource Locators (URLs) for copyright infringing or disputed material located on the Internet, with an indication of whether the material... |
| 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... |
