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| Number | Title | Issue Date |
| 7620178 | Copy protection for video signal added pulses Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. In one version, positive going pulses are added to the video signal. The enhancements in one version introduce into the overscan porti... | 11/17/2009 |
| 7391866 | Broadcast apparatus and reception apparatus for providing a storage service by which scrambled content is stored and descrambled using scrambling key list A reception apparatus includes: a reception unit for receiving the scrambled content, the scrambled content being scrambled so that a predetermined unit of scrambled content is descrambled using a descrambling key corresponding to the predetermined unit of scrambled... | 06/24/2008 |
| 7352863 | Copy protection for video signal using narrowed horizontal synchronization signals and amplitude modulation Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on a illegal copy. The enhancement in one version include a negative going waveform that appears to the television receiver or videotape recorder to be a ... | 04/01/2008 |
| 7352406 | Signal acquisition following transient signal interruption A television monitor display with video signal processing comprises a source (SM) of a video display signal (Y) including a sync component (S). A video processor (U1) is coupled to process the video display signal (Y). A sync separator (SS) is coupled to gene... | 04/01/2008 |
| 7352864 | Display device A display device comprises a nonvolatile memory for storing an amount of adjustment obtained in a blanking adjustment most recently performed for a particular video signal, means for judging whether or not the particular video signal is inputted, means for masking a... | 04/01/2008 |
| 7340778 | Method and apparatus for ensuring the copy protection of digital data When digital data is to be copy protected at a processing station, for example, prior to its encoding and recording onto an optical disc, it is necessary to control a compliant encoder to utilise copy protection files to perform the copy protection routine. To ensur... | 03/04/2008 |
| 7324646 | Method and apparatus for film anti-piracy A method and apparatus is disclosed for introducing alterations or distortions in projected images. The distortions on the projected image are imperceptible to a human viewer. The distortions are recorded on recording devices and observable upon viewing the recorded... | 01/29/2008 |
| 7324974 | Digital data file encryption apparatus and method A digital data file encryption apparatus and method, where a digital data server identifies the user and supplies an encrypted digital data file to the user in accordance with the identified result. A personal computer decrypts the encrypted digital data file suppli... | 01/29/2008 |
| 7317797 | Seamless switching between multiple pre-encrypted video files In a video on demand (VOD) system, methods and apparatus are provided for seamlessly switching back and forth between two pre-encrypted files having changing encryption keys. Such switching back and forth may be required when a VOD server stores both a “normal” ... | 01/08/2008 |
| 7287282 | Copyright protection system, transmitter, receiver, bridge device, copyright protective method, medium, and program In the case that a bridge unit is connected to a network such as an IEEE 1394 bus, copyright holders want to limit the number of apparatuses that can receive a signal. The invention provides at least one reception unit, or more, that is utilized for receiving... | 10/23/2007 |
| 7283726 | System for playing DVDs and method for controlling analog TV signal output thereof A method for controlling analog TV signal output in a computer system. First, the analog TV signal output port is disabled when the computer system boots. A signal output control interface is provided to the DVD play device to control the analog TV signal output por... | 10/16/2007 |
| 7281272 | Method and system for copyright protection of digital images A method and system for protecting digital images copied from a video RAM, including the steps of transmitting stored pixel data from a computer memory to a video RAM, identifying protected pixel data within the stored pixel data, modifying the stored pixel data, th... | 10/09/2007 |
| 7271817 | Aspect ratio conversion for imagers having random row access A method (400) of aspect ratio conversion for an imager (16) having random row access includes the steps of periodically receiving (402) a predetermined number of input video lines, vertical format converting (404) the predetermined numbe... | 09/18/2007 |
| 7269735 | Instance specific digital watermarks A method and apparatus for dynamically applying digital watermarks. Requested content is sent to a security module of a user device. A digital watermark is dynamically determined based at least on instance information about a rendering engine of the user device. The... | 09/11/2007 |
| 7257135 | Method and apparatus for generating information signal to be recorded A compressively-encoding-resultant video signal resulting from compressively encoding a video signal, a first compressively-encoding-resultant audio signal resulting from compressively encoding a first audio signal having a synchronized relation with the video signa... | 08/14/2007 |
| 7249106 | Information processing method and apparatus and program storage medium for prohibiting duplication of contents in large quantities A contents database 114 memorizes the discriminating information for discriminating contents and the temporal information as to the time of content duplication associated with the discriminating information. A recording program 113 acquires the discrim... | 07/24/2007 |
| 7245720 | Method for controlling the use of a program signal in a broadcast system, and control device for a receiver for carrying out such a method In a method for controlling the use of a program signal in a broadcast system, comprising one or more broadcasters and a number of receivers, at least a part of the receivers can be provided with a storage medium for storing program signals. The program signal compr... | 07/17/2007 |
| 7236686 | Method and apparatus for transmitting a signal, method and apparatus for receiving a signal, VBI signal generating apparatus, video signal transmitting apparatus, video signal processing apparatus, video signal receiving apparatus, decoding apparatus, and recording medium for recording a video signal Additional information is transmitted by means of assigning a code to a particular scanning line in a VBI (vertical blanking interval). An initial value of a CRCC (Cyclic Redundancy Check Code) or a formula used to generate a CRCC is switched depending upon the type... | 06/26/2007 |
| 7236683 | Method and apparatus for providing or enhancing copy protection by adding selected negative-going and positive-going pulses in a video signal HBI The horizontal blanking interval (HBI) of a normal video signal is modified to enhance the playability of the applied copy protected video signal while maintaining the copy protection effectiveness. As generally known, a copy protected video signal with positive-goi... | 06/26/2007 |
| 7222101 | System and method for securing data through a PDA portal Consumers may utilize computing devices to assist in the purchase and/or loyalty process, and in particular, the consumer may utilize a PDA to facilitate the purchase and/or loyalty process. During the purchase and/or loyalty process, the consumer may need to insure... | 05/22/2007 |
| 7218737 | System and method for an adaptive state machine to control signal filtering in a serial link A method for adaptively filtering a control signal in a serial link includes monitoring for a blanking interval in a video stream having an associated clock signal and monitoring for an occurrence of a VSYNC signal once the blanking interval has started. ... | 05/15/2007 |
| 7177427 | Method and system for transferring information using an encryption mode indicator A method and system for transferring information using an encryption mode indicator (EMI). The present invention provides several secure information communication modes in which data (e.g., representing an audio/visual work) can be transmitted from a source device t... | 02/13/2007 |
| 7162450 | Business method for determining quality and integrity of data content A method and system for communicating data inspecting, monitoring and analysis information by signaling between digital devices is described. A process analyzes the data, which is then subjected to a variety of inspection and validation methods and systems. The resu... | 01/09/2007 |
| 7149722 | Retail transactions involving distributed and super-distributed digital content in a digital rights management (DRM) system To distribute digital content from a retailer to a customer, the content as issued by a content provider is retrieved. The as issued content has license acquisition information for acquiring a corresponding license attached thereto, where the license acquisition inf... | 12/12/2006 |
| 7124115 | Micro payment-based advertising A method for electronic advertising by an advertiser includes posting an advertisement for an item offered to a buyer for purchase from a merchant on a page per fee basis at a predetermined price via a network link to a network address represented in the advertiseme... | 10/17/2006 |
| 7117180 | System for controlling the use of digital works using removable content repositories A rendering method, system, repository and software for controlling use of digital works in accordance with usage rights associated therewith and including a manner of use therefor, including receiving requests for digital works; determining whether a request for a ... | 10/03/2006 |
| 7110042 | Synchronization signal decoder and associated method The invention relates to a synchronization signal decoder and associated method for improving digital image display. A composite video stream includes a distortion compliant signal and a synchronization signal. A level shift circuit is adapted to shift a voltage lev... | 09/19/2006 |
| 7110982 | Secure access method and system A secure electronic content system and method is provided. The system includes a controller including an interface component, a host system coupled to the controller, the host system configured to present content under predetermined conditions, the host system opera... | 09/19/2006 |
| 7099473 | Information processing apparatus and method There is provided an information processing apparatus/method characterized by inputting information data, generating security data to be used to protect the information data, encoding the information data to generate encoded data, extracting a unique predetermined c... | 08/29/2006 |
| 7085380 | Method for modifying a copy protected video signal with a negative amplitude pulse An enhancement is provided for a copy protection method that discourages copying (e.g., by video taping) of video signals. The enhancement adds negative amplitude pulses to the video signal at a location in the horizontal blanking interval “back porch” after the... | 08/01/2006 |
| 7065211 | Signal reproducing/recording/transmitting method and apparatus and signal recording medium A video signal reproduction system for receiving a video signal transmitted via a satellite communication link at a receiving device. A copy permission indicator is inserted in the received video signal. The copy permission indicator is generated on the basis of cop... | 06/20/2006 |
| 7050076 | Optical state modulation apparatus, display system and optical state modulation method An optical state modulation unit is provided to apply an optical intensity modulation in temporal domain on a display image generated from an inputted image signal for different gray scale values such that the optical intensity modulation performed at least one of t... | 05/23/2006 |
| 7050698 | Method and apparatus for synthesizing or modifying a copy protection signal using a lowered signal level portion A modified Colorstripe™ copy protection process utilizes a basic anti-copy protection (ACP) signal that causes attenuation of a video signal, wherein, in one embodiment, the process modifies (lowers) the level of a front porch portion and adds an incorrect color s... | 05/23/2006 |
| 7039187 | Signal reproducing/recording/transmitting method and apparatus and signal record medium A video signal reproduction system for receiving a video signal transmitted via a satellite communication link at a receiving device. A copy permission indicator is inserted in the received video signal. The copy permission indicator is generated on the basis of cop... | 05/02/2006 |
| 7039294 | Method and apparatus for modifying the effects of color burst modifications to a video signal 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 shows variations in the color fidelity that appear as undesi... | 05/02/2006 |
| 7030956 | Optical intensity modulation method and system, and optical state modulation apparatus An optical intensity modulation having a periodicity in the temporal domain is applied on an optical state of an original display image, being displayed on a projection screen or a display screen, that takes into account a human temporal frequency contrast sensitivi... | 04/18/2006 |
| 7023993 | Signal reproducing/recording/transmitting method and apparatus and signal record medium for use with signals featuring a multiple-phase color burst 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 information read out from each header of a data sect... | 04/04/2006 |
| 6990584 | Method of and apparatus for restricting copy of digital information, and apparatus for recording digital information 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 on the basis of a first rule. A burying device buries a ... | 01/24/2006 |
| 6980653 | Signal reproducing/recording/transmitting method and apparatus and signal record medium A system for providing a copy permission indicator in a video signal. The copy permission indicator is generated on the basis of copy management information that has been appended to the video signal and detected by the system. The indicator is in the form of a mult... | 12/27/2005 |
| 6959290 | Method and apparatus for tracking states of digital works 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 determining whether the request should be granted based on usa... | 10/25/2005 |
