| 7031472 |
Method of authenticating information, disk playback apparatus, and entertainment apparatus |
| Apr-18-2006 |
A playback instructing unit in a disk playback controller has a function to instruct a CPU to play back an optical disk at different access positions in an absolute authentication process and an arbitrary... |
| 6457127 |
Method of and device for generating a key |
| Sep-24-2002 |
A key is generated to control the access to information on an information carrier. The key is derived from an M-bit master key and an information carrier key. Apparatus to read and/or write information... |
| 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... |
| 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... |
| 6385317 |
Method for providing a secure communication between two devices and application of this method |
| May-7-2002 |
In a method for providing a secure communication between two devices, a first device generates a random key (Ci) and transfers this key to a second device in a first message encrypted using a public key.... |
| 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... |
| 6044182 |
Method for embedding digital information in an image |
| Mar-28-2000 |
A method of embedding digital data in a source image includes the steps of: a) generating a multi-level data image representing the digital data; b) convolving the multi-level data image with an encoding... |
| 6856977 |
Method and system for proving ownership of digital data |
| Feb-15-2005 |
A system for proving ownership of digital media works. Proof of ownership of such type of work is provided by a protocol for registering a work with a registration center thus providing the rightful owner... |
| 5721788 |
Method and system for digital image signatures |
| Feb-24-1998 |
A method and system for embedding signatures within visual images in both digital representation and print or film. A signature is inseparably embedded within the visible image, the signature persisting... |
| 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... |
| 6684249 |
Method and system for adding advertisements over streaming audio based upon a user profile over a world wide area network of computers |
| Jan-27-2004 |
A method for inserting advertisements into streaming audio for transmission over a world wide network of computers. The method includes transmitting audio data from a first server location to a client... |
| 6961429 |
Method and device for guaranteeing the integrity and authenticity of a set of data |
| Nov-1-2005 |
Method and a device for guaranteeing the integrity and authenticity of data transmitted between a management center and one or several receiver units, wherein each receiver unit comprises a decoder (IRD)... |
| 5774549 |
Method and apparatus that processes a video signal to generate a random number generator seed |
| Jun-30-1998 |
A method and apparatus processes a video image signal to generate one or more random number generator seeds. Preferably, the video image signal represents a scene that is both unpredictable and "live".... |
| 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... |
| 6477253 |
Method and apparatus for television signal scrambling using vertical sync replacement |
| Nov-5-2002 |
A method and device for scrambling video signals for broadcast in a proprietary television system includes modifying the vertical or horizontal synchronization pulses of the video signal to prevent unauthorized... |
| 7010685 |
Method and apparatus for storing scrambled digital programs by filtering product identifier |
| Mar-7-2006 |
In accordance with one embodiment, a method for storing a normal scrambled digital program is provided. The method includes receiving a scrambled program, and receiving a plurality of access requirements.... |
| 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... |
| 6697489 |
Method and apparatus for securing control words |
| Feb-24-2004 |
In accordance with one embodiment, a method for securing control words is provided. The method includes receiving scrambled digital content in a descrambler integrated circuit. The method further includes... |
| 5646994 |
Method and apparatus for recording sensor data |
| Jul-8-1997 |
A method and apparatus for recording sensor data. The analog and digital signals containing the sensor data are accompanied by a concurrent analog video signal. The analog signals are converted to digital... |
| 5497419 |
Method and apparatus for recording sensor data |
| Mar-5-1996 |
A method and apparatus for recording sensor data. The analog and digital signals containing the sensor data are accompanied by a concurrent analog video signal. The analog signals are converted to digital... |
| 6424714 |
Method and apparatus for providing conditional access in connection-oriented interactive networks with a multiplicity of service providers |
| Jul-23-2002 |
A control system provides secure transmission of programs, including at least one of video, audio, and data, between a service provider and a customer's set top unit over a digital network. Program bearing... |
| 6920221 |
Method and apparatus for protected exchange of status and secret values between a video source application and a video hardware interface |
| Jul-19-2005 |
A video source application in a video source device requests from a video hardware interface of the video source device status with respect to a link linking the video source device to an external video... |
| 6976166 |
Method and apparatus for partial encryption of content |
| Dec-13-2005 |
The present invention is directed to methods and apparatus that partially encrypt an information data file. An exemplary method includes dividing the information file into a first file and a second file,... |
| 6349139 |
Method and apparatus for minimizing chroma subcarrier instability caused by a video line scrambling system |
| Feb-19-2002 |
In certain video scrambling systems, composite video is imperfectly separated into luminance and chrominance and scrambled in such a way that an unstable residual chroma color subcarrier remains in the... |
| 5903648 |
Method and apparatus for encryption |
| May-11-1999 |
A method and apparatus of encrypting optical images and storing these images in memory using random phase encoding is presented. The encryption technique uses random phase encoding in both the input plane... |
| 6523114 |
Method and apparatus for embedding authentication information within digital data |
| Feb-18-2003 |
Arbitrary digital information is embedded within a stream of digital data, in a way that avoids detection by a casual observer and that allows a user to determine whether the digital data have been modified... |
| 6115818 |
Method and apparatus for embedding authentication information within digital data |
| Sep-5-2000 |
Arbitrary digital information is embedded within a stream of digital data, in a way that avoids detection by a casual observer and that allows a user to determine whether the digital data have been modified... |
| 6101604 |
Method and apparatus for embedding authentication information within digital data |
| Aug-8-2000 |
Arbitrary digital information is embedded within a stream of digital data, in a way that avoids detection by a casual observer and that allows a user to determine whether the digital data have been modified... |
| 5912972 |
Method and apparatus for embedding authentication information within digital data |
| Jun-15-1999 |
Arbitrary digital information is embedded within a stream of digital data, in a way that avoids detection by a casual observer and that allows a user to determine whether the digital data have been modified... |
| 6064748 |
Method and apparatus for embedding and retrieving additional data in an encoded data stream |
| May-16-2000 |
A method and apparatus for embedding and retrieving an additional data bitstream in an encoded data stream, such as MPEG. The embedded data is processed and a choice parameter in the header portion of... |
| 6993509 |
Method and apparatus for distributing multimedia programs |
| Jan-31-2006 |
Distribution of audio and other multimedia content is accomplished by generating a multimedia session consisting of at least one multimedia program, generating a data session consisting of digital files... |
| 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... |
| 6349138 |
Method and apparatus for digital transmission incorporating scrambling and forward error correction while preventing bit error spreading associated with descrambling |
| Feb-19-2002 |
The specification relates to a method and apparatus supporting multiple access, bi-directional data and multimedia transfer described over a hybrid fiber/coax (HFC) network, though applicable to transmissions... |
| 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... |
| 6950520 |
Method and apparatus for carrying data in a video signal so that the data is not recorded |
| Sep-27-2005 |
A method and apparatus for modifying a video signal to allow it to carry encoded data which is detectable at a suitably compliant receiver but is not recorded by a conventional video recorder. One application... |
| 6028936 |
Method and apparatus for authenticating recorded media |
| Feb-22-2000 |
An authentic media protection system is described. Every recorded media includes a digital signature, a list of known counterfeit media identifiers, and counterfeit media response information. The digital... |
| 6956949 |
Method and apparatus for authenticating an hierarchy of video receiving devices |
| Oct-18-2005 |
A video source device and a video repeater device cooperatively authenticates said video repeater apparatus to said video source device. In one embodiment, the authentication is performed using an identical... |
| 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... |
| 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... |
| 6161179 |
Key-based protection method for light-readable discs |
| Dec-12-2000 |
To protect access to information recorded on a light-readable disc, a light-readable disc player provides the user with a unique key each time the user attempts to play the disc. After the user communicates... |
| 5818935 |
Internet enhanced video system |
| Oct-6-1998 |
A system for accessing the Internet based on an Internet information pointer encoded in a video signal. The system includes a video display adapted to display a video portion of the video signal. The system... |
| 6091816 |
Integrated audio recording and GPS system |
| Jul-18-2000 |
A method and apparatus for indicating the time and location at which audio signals are received by a user-carried audio-only recording device. In one embodiment, audio signals are received at a receiver... |
| 6243469 |
Information transmission method and apparatus |
| Jun-5-2001 |
The present invention provides an information transmission apparatus and method for an information transmission system where encrypted information comprised of a plurality of information units each hierarchically... |
| 6785814 |
Information embedding method and apparatus |
| Aug-31-2004 |
Supplementary information related to original data is embedded in the original data without being lost or altered and without degrading the quality of the original data. A photographing condition or the... |
| 6574338 |
Information delivery system and method |
| Jun-3-2003 |
A satellite-based digital broadcast system is used to provide real-time news, entertainment and informational programs to aircraft passengers in flight. Transmissions from the satellite occur on a time... |
| 6757828 |
Indigenous authentication for sensor-recorders and other information capture devices |
| Jun-29-2004 |
A method and system of authentication for sensor-recorders and other information capture devices is disclosed. In accordance with aspects of the current invention, a digital sample of the environment is... |
| 4549175 |
Image transmission apparatus using a random arrangement of optical fibers |
| Oct-22-1985 |
Image display apparatus provided with an address converter aiding the apparatus in faithfully reproducing for display an optical image transmitted via an optical fiber bundle. The address converter is... |
| 5748763 |
Image steganography system featuring perceptually adaptive and globally scalable signal embedding |
| May-5-1998 |
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... |
| 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... |
