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| Number | Title | Issue Date |
| 7877457 | Peer to peer gateway A method and system for interconnecting a number of peer to peer networks is disclosed. According to one embodiment, a peer to peer gateway communicates with one or more peer to peer networks. The gateway communicates with these networks through the Internet, to whi... | 01/25/2011 |
| 7721338 | Defeat of the copy protection of optical discs DVDs can be copy protected by incorporating regions which contain unreadable or subversive data within the data area (42). For example, such a region may be configured as a cell of a video object (VOB) (50) within a VOB file (51). Access to the ... | 05/18/2010 |
| 7716744 | Apparatus and method for monitoring and controlling access to data on a computer readable medium The present invention provides a device driver and a method for controlling access to data on a computer readable medium. According to the invention, there is provided an interface for access to a device-driver stack for a media drive, a detector for detecting inser... | 05/11/2010 |
| 7716138 | Method for discouraging the distribution of illegal copies of computer programs over file sharing networks Special CD-keys are generated so as to have special patterns recognizable by compliant installer programs, which require special actions to be taken by the compliant installer programs when recognized. Since the special patterns are different than those used for val... | 05/11/2010 |
| 7715934 | Identification of input files using reference files associated with nodes of a sparse binary tree An input profile is generated from an input audio file using a measurable attribute that was also used to generate reference profiles from reference audio files. The input profile is then subjected to a process that was also used to generate a reference profiles tre... | 05/11/2010 |
| 7706661 | Copy protection of optical discs using redundant control data Subservive data has been incorporated in the content of an optical disc, such as a DVD, to prevent copying of the disc. To defeat such copy protection, devices to copy optical discs are now being controlled to only copy data referred to by selected program paths. Ac... | 04/27/2010 |
| 7706533 | Copy protection for video signal using narrowed horizontal synchronization signals Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. The enhancements in one version introduce into the overscan portion of the television picture, just prior to the horizontal or vertica... | 04/27/2010 |
| 7702591 | System and methods providing secure delivery of licenses and content A computer network having a requesting node and a providing node permits data transfer therebetween when permitted by an authorizing node. Reports generated in response to authorizations and reports generated in response to data transfers are reconciled at a reconci... | 04/20/2010 |
| 7701825 | Apparatus for and a method of authenticating recording media A digital recording medium such as an optical disc is recorded using an encoding process this is modified to cause a peak or rapid change in the digital sum value in the encoded data for part of the recording data. This provides the corresponding part of the recorde... | 04/20/2010 |
| 7685641 | Copy-protected digital audio compact disc, and method and system for producing same A method for producing a copy-protected audio compact disc containing a plurality of symbols within error-correction codewords, representing audio data samples of an audio signal is provided. The method includes the steps of selecting at least one audio data sample ... | 03/23/2010 |
| 7664369 | Method and apparatus for improving the playability of a PAL or NTSC video signal containing color burst modifications 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... | 02/16/2010 |
| 7650504 | System and method of verifying the authenticity of dynamically connectable executable images System and method for verifying the authenticity of executable images. The system includes a validator that determines a reference digital signature for an executable image using the contents of the executable image excluding those portions of the executable that ar... | 01/19/2010 |
| 7650418 | System and method for controlling the usage of digital objects A system and method for managing the use and access of digital data objects are provided. Control rights associated with a digital data object activate an external control object and an intercept application to intercept and monitor communications between a hosting ... | 01/19/2010 |
| 7624282 | Method and apparatus for DVD copy protection with selective data pattern insertion Method and apparatus for inhibiting unauthorized copying of data content of DVDs or CDs or other types of optical discs. DSV (digital sum value) data patterns are inserted into selected sectors of the data to be recorded on the optical disc. These selected data sect... | 11/24/2009 |
| 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 |
| 7609944 | Copy protection of optical discs To copy protect an optical disc, such as a DVD, program chains additional to the main program chain are provided. These program chains may lead to the genuine data but in an incomplete or incorrect order or to false data. Sufficient additional program chains are pro... | 10/27/2009 |
| 7603022 | Networked personal video recording system A networked personal video recording (“PVR”) system couples a plurality of clients to one or more PVR media servers over a network. One or more PVR media servers include television tuners to tune television signals. A storage medium buffers the television signal... | 10/13/2009 |
| 7574723 | Home media network According to one embodiment, a method is described. The method includes receiving a request at a control module from a first remote device to access media data from a storage management module and determining that a first user is requesting access to the data based ... | 08/11/2009 |
| 7574691 | Methods and apparatus for rendering user interfaces and display information on remote client devices A user interface is implemented on a client device remote from a host device. The host device operates an application program that implements a user interface, such as an electronic programming guide or a guide for a personal video recorder, that permits a user to c... | 08/11/2009 |
| 7570641 | Techniques for watermarking and distributing content Techniques for watermarking and distributing are provided. Content is broken into frames, each frame includes a watermark. Resources request the content and each frame of each resource's acquired version of the content includes a watermark. The frames of each resour... | 08/04/2009 |
| 7530116 | Controlling the downloading and recording of digital data A method and apparatus for enabling a licensed end user to record digital data as described is particularly useful to the music industry as it enables them to make audio data available over the internet but to retain control of the uses to which that audio data can ... | 05/05/2009 |
| RE40689 | Method and apparatus for disabling anti-copy protection system in video signals A method and apparatus for disabling the effect of copy-protect signals placed in a recording video signals which is based on differences in the characteristics of television and VCR circuitry. Copy-protect signals include pseudo-sync pulses and/or added AGC pulses ... | 03/31/2009 |
| 7492896 | Copy protection for video signal using added negative amplitude pulse Enhancements to a video anticopying process that causes an abnormally low amplitude video signal to be recorded on an illegal copy. The enhancements in one version introduce into the overscan portion of the television picture, just prior to the horizontal or vertica... | 02/17/2009 |
| 7464411 | Copy protection for optical discs A method of copy protecting optical discs uses the differences in capability between the encoder associated with a laser beam recorder and that in currently available CD writers. Digital sum value (DSV) is a property of the encoded data on CDs and an encoder, which ... | 12/09/2008 |
| 7457511 | Independent buffer positions for a networked personal video recording system A networked personal video recording (“PVR”) system couples a plurality of clients to one or more PVR media servers over a network. One or more PVR media servers include television tuners to tune television signals. A storage medium buffers the television signal... | 11/25/2008 |
| 7454120 | Methods and apparatus for client aggregation of television programming in a networked personal video recording system A networked personal video recording (“PVR”) system couples a plurality of clients to one or more PVR media servers over a network. One or more PVR media servers include television tuners to tune television signals. A storage medium buffers the television signal... | 11/18/2008 |
| 7414930 | Method of accessing data on a copy protected data carrying disc The method and apparatus described utilise the fact that CDs manufactured from the same master will have distinctive physical characteristics attributable to the physical manufacturing process of the master to distinguish counterfeit CDs from genuine discs. For a ge... | 08/19/2008 |
| 7395545 | Method and apparatus for providing copy protection using a transmittal mode command A method and system of providing copy protection of video analog and digital signals and the like, wherein the signals are transmitted via a digital delivery network, and may comprise, for example, pay-per-view (PPV) program materials protected by copyrights of resp... | 07/01/2008 |
| 7360252 | Method and apparatus for secure distribution of software Software is securely distributed with limited usage rights. The software may be an executable program and/or one or more data files such as image or multimedia data files. The software includes an access control object which prevents at least some usage of the softw... | 04/15/2008 |
| 7356142 | Secure compact disk and player A method for recording data on an optical medium is disclosed. In one embodiment, the method includes receiving a first plurality of frames of data at a Cross Interleave Reed-Solomon Code (CIRC) encoder, encoding the first plurality of frames of data by the CIRC enc... | 04/08/2008 |
| 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 |
| 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 |
| 7310764 | Digital video disk and player and associated methods with proprietary format A method for recording data on an optical medium and the associated optical medium (e.g. DVD), player, and playback method. The recording method includes receiving main data from a data source, determining a plurality of data frame values in response to the main dat... | 12/18/2007 |
| 7298962 | Method and apparatus for reducing and restoring the effectiveness of a commercial skip system A method and apparatus is disclosed which reduces or removes the effectiveness of commercial skip systems such as presently found in VCRs, PVRs, etc. which are designed to delete commercials from signal material upon playback of a previously recorded version of the ... | 11/20/2007 |
| 7299209 | Method, apparatus and system for securely providing material to a licensee of the material A method, apparatus and system for securely providing material to a licensee of the material are described. In each, at least one license key is provided, preferably along with a license including usage rights for requested content or material to the licensee. The m... | 11/20/2007 |
| 7278169 | Controlling the downloading and recording of digital data A method and apparatus for enabling a licensed end user to record digital data as described is particularly useful to the music industry as it enables them to make audio data available over the internet but to retain control of the uses to which that audio data can ... | 10/02/2007 |
| 7274790 | Scrambling and descrambling a high definition TV signal Method and apparatus for scrambling a high definition television signal to discourage unauthorized recording of same. While recording per se is not prevented, the resulting recorded signal is rendered unusable due to an induced “wobble” between the active video ... | 09/25/2007 |
| 7266528 | Method for computer network operation basis for usage fees A computer network having a requesting node and a providing node permits data transfer therebetween when permitted by an authorizing node. Reports generated in response to authorizations and reports generated in response to data transfers are reconciled at a reconci... | 09/04/2007 |
| 7239584 | Method and apparatus for protection of data carrying discs The method and apparatus described utilise the fact that CDs manufactured from the same master will have distinctive physical characteristics attributable to the physical manufacturing process of the master to distinguish counterfeit CDs from genuine discs. For a ge... | 07/03/2007 |
| 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 |
