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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 8189781 | Protection of digital images A method includes obtaining an original image; dividing the original image into a plurality of pixel blocks; forming a scrambled image by rearranging the plurality of pixel blocks; and forming a markup language description to display the original image from the scra... | 05/29/2012 |
| 8189780 | Content protection system The digital broadcast receiver comprises: a signal input unit for receiving a received broadcast wave; a demodulation unit for demodulating the broadcast wave; an external module; an external module I/F (Interface) for connecting the receiver to the external module;... | 05/29/2012 |
| 8189782 | Modular broadcast receiver system and method The construction of a receiving apparatus for receiving a broadcast from a plurality of broadcasting providers is simplified. In a receiving apparatus for receiving a broadcast from a plurality of broadcasting providers, of the function blocks which constitute the r... | 05/29/2012 |
| 8144870 | Encoding and detecting apparatus An encoding data processing apparatus generates a video material item marked copy by embedding a payload data word into the video material item. The video material item includes plural video frames. A code word generator generates a water mark code word from the pay... | 03/27/2012 |
| 8036382 | Conditional access system and method for prevention of replay attacks In a conditional access system, a headend transmits content to one or more receivers in encrypted transport streams. The system provides a multi-layer security architecture, rendering the system resistant to key replay attacks; if one layer is circumvented, subseque... | 10/11/2011 |
| 8027470 | Video slice and active region based multiple partial encryption A selective encryption decoder for decrypting and decoding a selectively encrypted digital video signal has a demultiplexer that receives packets of digital video, certain of the packets being unencrypted and certain of the packets being encrypted. Certain of the en... | 09/27/2011 |
| 8027469 | Video slice and active region based multiple partial encryption A television set-top box has a receiver receiving a digital television signal comprising, a plurality of unencrypted packets; and a plurality of encrypted packets. The encrypted packets are of at least one selected packet type and the at least one selected packet ty... | 09/27/2011 |
| 7978852 | Method of partially scrambling a data stream A method of partially scrambling a data stream (6) including transport stream packets (7), each transport stream packet (7) having a header (8) and a payload (9), wherein a sequence of transport stream packets (7) has payloa... | 07/12/2011 |
| 7949132 | Modular architecture to unify the playback of DVD technologies The present disclosure relates to parsing encrypted content and sending the encrypted content to appropriate stacks of components. Encrypted video content is sent to a video stack and encrypted audio content is sent to an audio stack. Components in either stack may ... | 05/24/2011 |
| 7940930 | Native scrambling system A system for scrambling/descrambling packets of a stream of content, each packet having a must stay clear (MSC) section, the system including an input handler including a receiving module to receive the stream, a characteristic analyzer to analyze the stream in orde... | 05/10/2011 |
| 7936876 | System and method for transporting video data through a dual-link HD-SDI connection In accordance with the teachings the present invention, a system and method for transporting video data through a dual-link HD-SDI connection is provided. In a particular embodiment of the present invention, the method includes coupling a digital video projector and... | 05/03/2011 |
| 7925019 | Method and apparatus for converting data, method and apparatus for inverse converting data, and recording medium A data converting apparatus includes a segmenting unit for setting a predetermined access unit, as an access unit to be processed, out of input data containing at least one access unit containing a plurality of data components per pixel, and for segmenting the acces... | 04/12/2011 |
| 7925020 | Apparatuses and methods for copy protection Apparatuses and methods may include creating at least one of a scramble key and a descramble key using a Copy Protection (CP) key that existed prior to a refresh period and using a value created at a time associated with the changing of a channel during the refresh ... | 04/12/2011 |
| 7920703 | Descrambler According to one embodiment of the invention, the descrambler IC comprises a local memory to store a unique key and a plurality of process blocks. A first process block performs cryptographic operations on a first mating key generator using the unique key in order t... | 04/05/2011 |
| 7907728 | Method and system of transferring scrambled content Method and system of transferring scrambled content from location to another. The method and system may include transferring the scrambled content without requiring the descrambling thereof. The method and system may be used to transfer live content, stored content,... | 03/15/2011 |
| 7899182 | Digital broadcast reception apparatus Disclosed is a digital broadcast reception apparatus which performs a scramble judgment by obtaining a judgment PID corresponding to PCR_PID and a judgment packet corresponding to the judgment PID and judging whether the judgment packet is obtained within a first ti... | 03/01/2011 |
| 7889864 | Data processing system and method A data processing system includes: a stream decoder for decrypting a stream encrypted by broadcast encryption to obtain a first decrypted stream; an internal buffer for storing the first decrypted stream; and an encryption/decryption processor. The encryption/decryp... | 02/15/2011 |
| 7869596 | Method of recording scrambled digital data, storage medium and method of reading such data A method of recording scrambled digital data comprising the steps consisting in: (a) receiving a scrambled digital data stream; (b) identifying in the data stream a control packet (ECM) containing at least one key ... | 01/11/2011 |
| 7840007 | Digital data false alteration detection program and digital data false alteration detection apparatus A digital data false alteration detection program causes a computer to execute (a) a step (S1) of dividing digital data into a plurality of smaller block data, (b) a step (S2) of extracting noise inherent to a digital data acquisition device for each o... | 11/23/2010 |
| 7826615 | Scrambling apparatus and method using conversion of motion vector information of video data A scrambling apparatus and method are provided for increasing randomness without damaging compression efficiency of total video data by selectively and randomly performing conversion when converting motion vector codes of compressed video data into other motion vect... | 11/02/2010 |
| 7822202 | Method and device for processing a sequence of video images The invention discloses a new modulation scheme to prevent illegal copy in movie theaters. None of the existing modulation schemes make the right assumptions to modelize a camcorder device. In such classical schemes, camcorders are always considered as sampling devi... | 10/26/2010 |
| 7809138 | Methods and apparatus for persistent control and protection of content A novel method and apparatus for protection of streamed media content is disclosed. In one aspect, the apparatus includes control means for governance of content streams or content objects, decryption means for decrypting content streams or content objects under con... | 10/05/2010 |
| 7809139 | Digital broadcasting system and method of processing data in digital broadcasting system A digital broadcast receiver and a control method thereof are disclosed. The control method includes receiving a broadcast signal into which mobile service data and main service data are multiplexed, extracting TPC signaling information and FIC signaling information... | 10/05/2010 |
| 7796756 | Modular broadcast receiver system and method The construction of a receiving apparatus for receiving a broadcast from a plurality of broadcasting providers is simplified. In a receiving apparatus for receiving a broadcast from a plurality of broadcasting providers, of the function blocks which constitute the r... | 09/14/2010 |
| 7792296 | Access-controlled encrypted recording method for site, interaction and process monitoring A high level of security for access to recorded information is provided by a method which includes provisioning of a trusted/protected communication linkage such as a tamper-resistant or tamper evident enclosure, a physical close coupling between information source ... | 09/07/2010 |
| 7792295 | Monitoring camera system, imaging device, and video display device This relates to an imaging device in which the necessary monitoring of an individual can be realized, while still maintaining protection of an individual's privacy. The imaging device includes an encryption key storage unit in which encryption key data is stored for... | 09/07/2010 |
| 7792294 | Selective encryption encoding In certain embodiments, a selective encryption encoder has a packet identifier that identifies packets of a specified packet type. The specified packet type includes packets carrying data representing a video slice wherein the video slice contains a larger amount of... | 09/07/2010 |
| 7778420 | Content security layer providing long-term renewable security In an exemplary embodiment, digital content is mastered as a combination of encrypted data and data processing operations that enable use in approved playback environments. Player devices having a processing environment compatible with the content's data processing ... | 08/17/2010 |
| 7764791 | Method for secured transmission of audiovisual files A procedure for distributing audiovisual sequences according to a nominal format of a stream including a succession of frames including before transmission to destination equipment, performing an analysis of the stream to generate a first modified stream having form... | 07/27/2010 |
| 7747016 | Data transmitting/receiving method, data transmission apparatus, data reception apparatus, data transmission/reception system, AV contents transmitting method, AV contents receiving method, AV contents transmission apparatus, AV contents reception apparatus, and program recording medium A data transmitting and receiving method for improving transmission and reception efficiency can be obtained by improving the security through update of a control key and reduction of the frequency of the authentication and key exchange process. An STB 1 tran... | 06/29/2010 |
| 7742599 | Apparatus and method for an iterative cryptographic block A method and apparatus for an iterative cryptographic block under the control of a CPU and without a fixed number of stages. In one embodiment, a first cryptographic block descrambles received information using an internal key or a preprogrammed key to form a descra... | 06/22/2010 |
| 7724901 | Image processing method An image processing method includes inputting electronic image data to be scrambled, decomposing the input electronic image data into n colors (n is an integer) and producing m pieces of color decomposition data for each color (m is an integer), producing palette da... | 05/25/2010 |
| 7697685 | Data dependent scrambler with reduced overhead A scrambling system includes a seed finder that selects a scrambling seed. A first scrambler generates a scrambled sequence in response to a user data sequence and the scrambling seed. A code finder generates at least one of a token and an offset of the token from t... | 04/13/2010 |
| 7688977 | Method for encrypting video data A method for encrypting video data in which the encryption achieves a high standard of security and is carried out at a reduced computation cost. The encryption comprises disordering a set of video data to be encrypted and obscuring the disordered video data. ... | 03/30/2010 |
| 7680278 | Domino scheme for wireless cryptographic communication and communication method incorporating same A system and method for secure wireless cryptographic communication among participants in a wireless computing network is presented. This secure communication method is based on a random modulation technique and a domino match. Once the initial modulation scheme is ... | 03/16/2010 |
| 7668312 | Scrambling, descrambling and secure distribution of audio-visual sequences from video encoders based on wavelet processing A process for secured distribution of video sequences according to a digital stream format stemming from an encoding based on a processing by wavelets including frames including blocks containing coefficients of wavelets describing the visual elements, including ana... | 02/23/2010 |
| 7664264 | Utilizing data reduction in steganographic and cryptographic systems The present invention relates to methods for protecting a data signal using the following techniques: applying a data reduction technique to reduce the data signal into a reduced data signal; subtracting the reduced data signal from the data signal to produce a rema... | 02/16/2010 |
| 7620179 | System and method for security processing media streams A system for multi-stream security processing and distributing digital media streams includes a headend, a network, and at least one receiver. The headend is generally configured to generate encrypted digital media streams. The network may be coupled to the headend ... | 11/17/2009 |
| 7590241 | Receiver and receiving method When a channel which is not scrambled is selected, an error occurs in a digital stream processed in a CA processing module, which causes noises to occur in video and audio signals to be viewed. If a FAT channel to be received is a channel that is not CA-scrambled, a... | 09/15/2009 |
| 7590240 | Conditional access system and method prevention of replay attacks In a conditional access system, a headend transmits content to one or more receivers in encrypted transport streams. The system provides a multi-layer security architecture, rendering the system resistant to key replay attacks; if one layer is circumvented, subseque... | 09/15/2009 |
