| 6804356 |
Hierarchical authentication system for images and video |
| Oct-12-2004 |
A method and system for creating authentication signatures for digital images and video frames is provided. The method and system involves partitioning the image into multiple blocks, comparing characteristics... |
| 6833833 |
Feedback path for video benchmark testing |
| Dec-21-2004 |
A feedback path to the processor for a video signal in a computer. The video image data is not normally subjected to benchmark testing because it would make it susceptible to illegal copying. The digital... |
| 6169803 |
Encryption key processing system to be incorporated into data recovery system or key setting system for generating encryption key |
| Jan-2-2001 |
An encryption key processing system includes a user terminal system which uses a key and a sub-system for holding information regarding the user terminal system, the sub-system generating predetermined... |
| 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... |
| 5917910 |
Encrypting method and apparatus, recording method, decrypting method and apparatus, and recording medium |
| Jun-29-1999 |
When information to be recorded is encrypted by using an encryption key, an encryption key based on inherent information inherent in a recording medium is generated. The information to be recorded on the... |
| 6480607 |
Encrypted data reproducing transmitting and processing method and apparatus with separately encrypted control data |
| Nov-12-2002 |
A data reproducing apparatus high in security against unauthorized duplication. A drive 20 includes a first CSS encoder 21 for performing first encryption processing on picture data etc reproduced from... |
| 6957350 |
Encrypted and watermarked temporal and resolution layering in advanced television |
| Oct-18-2005 |
A method and apparatus for image compression using temporal and resolution layering of compressed image frames, and which provides encryption and watermarking capabilities. In particular, layered compression... |
| 6560339 |
Electronic watermarking method, digital information distribution system using such method, and storage medium storing program of such method |
| May-6-2003 |
An electronic watermarking method includes the steps of generating a plurality piece of information with different electronic watermark information, generating a plurality piece of encrypted 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... |
| 6952479 |
Dynamic copy protection of optical media |
| Oct-4-2005 |
A method for copy protection includes receiving data in a recording module representing content to be recorded on a recording medium, the data including an indication that the content is to be protected... |
| 6988086 |
Document services management including availability reporting of document distribution services |
| Jan-17-2006 |
A system and method of managing document distribution services of a plurality of document distribution providers includes registering the document distribution services, identifying at least one resource... |
| 6845450 |
Display unit storing and using a cryptography key |
| Jan-18-2005 |
Keys (e.g., decryption key, authentication key) are stored in a non-volatile memory of a display unit. The keys are retrieved in encrypted form into an integrated circuit. The integrated circuit decrypts... |
| 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,... |
| 6920436 |
Digital work structure |
| Jul-19-2005 |
A digital work for use within a rights management system for controlling use of the digital work in accordance with usage rights. The work is organized into an acyclic structure and includes a contents... |
| 6961853 |
Digital watermarks |
| Nov-1-2005 |
A method of and an apparatus for implementing real-time transaction specific watermarking to generate a transaction specific digitally watermarked data file is described. The method comprises two stages.... |
| 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... |
| 6724913 |
Digital watermarking |
| Apr-20-2004 |
A watermarking method and device to embed a digitized watermark into a digital image file in the transformation domain is disclosed. In the watermarking technology of this invention, the digitized watermark... |
| 4680791 |
Digital video signal process apparatus for use in a video tape recorder |
| Jul-14-1987 |
A processing apparatus for producing a recording signal from a video signal is disclosed. The video signal is coded to include a plurality of sub-blocks, each of the sub-blocks including a synchronizing... |
| 7043021 |
Digital video content transmission ciphering and deciphering method and apparatus |
| May-9-2006 |
A video source device generates a session key for each transmission session wherein a multi-frame video content is to be transmitted to a video sink device. The video source device uses the session key... |
| 6731758 |
Digital video content transmission ciphering and deciphering method and apparatus |
| May-4-2004 |
A video source device generates a session key for each transmission session wherein a multi-frame video content is to be transmitted to a video sink device. The video source device uses the session key... |
| 6477252 |
Digital video content transmission ciphering and deciphering method and apparatus |
| Nov-5-2002 |
A video source device provides a basis value to a symmetric ciphering/deciphering process to a video sink device, to which the video source device is to provide a video content. The video source device... |
| 6385388 |
Digital video apparatus user interface |
| May-7-2002 |
A method and apparatus for processing information stored on a storage medium, such as a digital video disk, involves accessing information stored on the medium and determining whether information stored... |
| 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... |
| 6636690 |
Digital signal storing apparatus and method, program recording medium, digital signal recording apparatus and method |
| Oct-21-2003 |
To prevent fraudulent innumerable copies of a copyrighted digital signal from appearing, a dedicated device driver reads the copyrighted digital signal from a card type recording medium, for example, a... |
| 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... |
| 6772340 |
Digital rights management system operating on computing device and having black box tied to computing device |
| Aug-3-2004 |
A digital rights management (DRM) system operates on a computing device when a user requests that an encrypted piece of digital content be rendered by the computer device. The computing device has an identifier.... |
| 6178242 |
Digital recording protection system |
| Jan-23-2001 |
A system for producing an output scrambled digital data stream from an input scrambled digital data stream. The input scrambled digital data stream includes a plurality of control messages (ECMs), each... |
| 6298196 |
Digital recording apparatus and copyright protection method thereof |
| Oct-2-2001 |
The CGMS unacceptable recorder accepts transmission frames only when the copyright protection information in a transmission header transmitted to the IEEE1394 serial bus indicates copy free. The CGMS acceptable... |
| 6453304 |
Digital information recording apparatus for recording digital information |
| Sep-17-2002 |
A digital information recording apparatus to record digital information to protect copyright of digital information that includes at least first digital information and first copy control information.... |
| 6452952 |
Digital information processing system with copy protection subsystem |
| Sep-17-2002 |
A digital information processing system ensures illegal-copy protection of video and audio signals without changing the structure or format of a stream of multiplexed video, audio and data packets. A packet... |
| 6968058 |
Digital evidential camera system for generating alteration detection data using built-in encryption key |
| Nov-22-2005 |
A digital evidential camera system is for detecting the alteration of image data obtained by photographing an object. The system comprises the camera and an alteration detection unit. The camera includes... |
| 6751321 |
Digital data reproduction device |
| Jun-15-2004 |
A source of MPEG2 video data is connected with a dedicated AV device or personal computer by means of an IEEE 1394 interface. A transmission unit in the source has an IEEE 1394 encryption unit and a sending... |
| 6859535 |
Digital content protection system |
| Feb-22-2005 |
The media inherent key storing unit 220 prestores an inherent key Ki, the conversion unit 230 generates an encrypted inherent key Ji from the inherent key read from the media inherent key storing unit... |
| 6424715 |
Digital content management system and apparatus |
| Jul-23-2002 |
There are provided a digital content management apparatus which further embodies a digital content management apparatus used with a user terminal, and a system which protects the secrets of a digital content.... |
| 6751598 |
Digital content distribution system and protection method |
| Jun-15-2004 |
In a digital content distribution method and system, a storage medium is composed of a ROM area in which a key is stored and a RAM area in which a digital content is stored. A storage medium certification... |
| 6892306 |
Digital content cryptograph and process |
| May-10-2005 |
A digital cryptograph and encryption process encrypts and transmits in a digital format specific items of information requested by a user of a digital content transmission system by using key information,... |
| 6304971 |
Digital compact disc player security system reproducing method and apparatus |
| Oct-16-2001 |
A security system for preventing disc players from being used with unauthorized software is disclosed. The security code is stored through modulating an offset of the physical position of a plurality of... |
| 6122739 |
Digital compact disc player security system reproducing method and apparatus |
| Sep-19-2000 |
A security system for preventing disc players from being used with unauthorized software is disclosed. The security code is stored through modulating an offset of the physical position of a plurality of... |
| 6163361 |
Digital camera including a printer for receiving a cartridge having security control circuitry |
| Dec-19-2000 |
A digital camera is disclosed which includes a printer for printing images onto a receiver having preformed authenticating information, the receiver being formed in a cartridge which is insertable into... |
| 6694022 |
Digital broadcasting receiver |
| Feb-17-2004 |
A digital broadcasting receiver includes a tuner unit for receiving digital broadcasting in formation, an information storage unit for storing the digital broadcasting information together with copyright... |
| 5774548 |
Digital broadcast transmitting and receiving system and transmitting and receiving apparatus thereof |
| Jun-30-1998 |
An arrangement to automatically change between a scrambled digital data output and descrambled digital data output of a receiver by inserting a control signal conforming to a program provider's policy... |
| 6463152 |
Digital broadcast receiving and reproducing apparatus |
| Oct-8-2002 |
A digital broadcast receiving and playing apparatus for receiving digital program data of pay broadcast, generating an apparatus individual key and a program key different in every program or every program... |
| 6256390 |
Device having a digital interface and a network system using such a device and a copy protection method |
| Jul-3-2001 |
A copy flag detecting circuit in a device detects the copy generation management information. This copy generation management information is inserted in the CIP header of the IEEE 1394 packet for transmission.... |
| 6118871 |
Device having a digital interface and a network system using such a device and a copy protection method |
| Sep-12-2000 |
A copy flag detecting circuit in a device detects the copy generation management information. This copy generation management information is inserted in the CIP header of the IEEE 1394 packet for transmission.... |
| 6622132 |
Device for encoding encrypted information on an optical disk |
| Sep-16-2003 |
A device for recording information on an optical disk having first and second recording areas, which device can record information into the first recording area, using a first modulation method; read disk... |
| 6674859 |
Device and method for the protected output of electronically transmitted and stored documents |
| Jan-6-2004 |
The invention relates to a device for the protected output of an electronically transmitted and stored document which is provided with or which is subject to electronic copy protection, comprising a storage... |
| 6343281 |
Device and method for preventing fraudulent copies of data containing encrypted copy-management information and recording medium |
| Jan-29-2002 |
A device to be used with digital data copying apparatus for preventing fraudulent copies of a digital data is disclosed. The digital data includes an encrypted data main body and encrypted copy management... |
| 7020383 |
Detecting and thwarting imaging systems at theatrical performances |
| Mar-28-2006 |
A system and method of detecting and thwarting the use of unauthorized imaging systems at theatrical performances. Sensors are deployed at a theatrical event to detect a focusing signal and/or the RF signal... |
| 6977366 |
Detecting and thwarting imaging systems at theatrical performances |
| Dec-20-2005 |
A system and method of detecting and thwarting the use of unauthorized imaging systems at theatrical performances. Sensors are deployed at a theatrical event to detect the IR focusing signal and/or the... |
| 6861640 |
Detecting and thwarting imaging systems at theatrical performances |
| Mar-1-2005 |
A system and method of detecting and thwarting the use of unauthorized imaging systems at theatrical performances. Sensors are deployed at a theatrical event to detect the IR focusing signal and/or the... |
