| 7043020 |
Smartcard for use with a receiver of encrypted broadcast signals, and receiver |
| May-9-2006 |
A smartcard for use with a receiver of encrypted broadcast signals comprises a microprocessor for enabling or controlling decryption of said signals. A memory is coupled to the microprocessor. The microprocessor... |
| 7039189 |
Stream continuity enforcement |
| May-2-2006 |
A system for enforcing data stream continuity, in accordance with the present invention, includes a server coupled to a transmission link for providing a data stream to at least one client over the transmission... |
| 7023992 |
Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device |
| Apr-4-2006 |
In a data multiplexing device which multiplexes and transmits the transport stream packets of program data consisting of a plurality of data elements constructed in the form of transport stream packets,... |
| 7017045 |
Multimedia watermarking system and method |
| Mar-21-2006 |
A system and method for verifying and authenticating multimedia objects. Provided is a system for splitting a watermark into at least a first and second part, inserting the first part of the watermark... |
| 7012932 |
Digital broadcast data receiving apparatus |
| Mar-14-2006 |
A digital broadcast data receiving apparatus comprises a plurality of broadcast data receiving units for receiving digital broadcast data supplied from a plurality of digital broadcast data sources, respectively... |
| 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.... |
| 7003118 |
High performance IPSEC hardware accelerator for packet classification |
| Feb-21-2006 |
An architecture for a high performance IPSEC accelerator. The architecture includes components for scanning fields of packets, programming an IPSEC services device according to the scanned fields, and... |
| 7003115 |
Communication apparatus, communication system and method of the same |
| Feb-21-2006 |
A communication apparatus capable of reducing the amount of communication with other communication apparatuses is provided, wherein a content signal of a popular program is broadcasted in advance from... |
| 7000113 |
Recording information with a watermark related to a prerecorded medium mark on an information carrier |
| Feb-14-2006 |
A system for copy protection of recorded information is disclosed, including an information carrier, a recorder and a player. The information carrier, e.g. an optical disc, includes a medium mark representing... |
| 6996236 |
Methods and apparatus for protecting signals transmitted between a source and destination device over multiple signal lines |
| Feb-7-2006 |
Methods and apparatus for protecting copyrighted information, e.g., video signals, from unauthorized use are described. Encrypted video signals are transmitted from a source device, e.g., display adapter,... |
| 6993131 |
Method and system for managing rights in digital information over a network |
| Jan-31-2006 |
A method and system for distributing digital information is disclosed. Preferably, a user acquires a tangible object which contain a code authorizing access to the digital information. The user reads the... |
| 6990203 |
Cable television setback decoder automatic control |
| Jan-24-2006 |
A receiver which receives a multichannel signal and which detects and outputs an unscrambled desired signal to a video display and speaker unit includes a first unit, a second unit and a controller. The... |
| 6990200 |
Encryption method, cryptographic communication method, ciphertext generating device and cryptographic communication system of public-key cryptosystem |
| Jan-24-2006 |
Two public keys including a random number term therein are prepared in a database for each divided plaintext in advance, a plaintext is divided into a plurality of 1-bit divided plaintexts, one public... |
| 6987854 |
Method and apparatus for recording of encrypted digital data |
| Jan-17-2006 |
A method of transmitting and recording digital data scrambled using a control word. The scrambled data is transmitted together with the control word, and the method includes encrypting the control word... |
| 6983050 |
Methods and apparatus for protecting information content |
| Jan-3-2006 |
Methods and apparatus for protecting copyrighted information, e.g., video signals, from unauthorized coping. Analog red (R), green (G) and blue (B) video signals are transmitted from a source device, e.g.,... |
| 6980653 |
Signal reproducing/recording/transmitting method and apparatus and signal record medium |
| Dec-27-2005 |
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... |
| 6973579 |
Generation of user equipment identification specific scrambling code for the high speed shared control channel |
| Dec-6-2005 |
A code is produce for use in scrambling or descrambling data associated with a high speed shared control channel (HS-SSCH) for a particular user equipment. A user identification of the particular user... |
| 6970564 |
Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device |
| Nov-29-2005 |
In a data multiplexing device which multiplexes and transmits the transport stream packets of program data consisting of a plurality of data elements constructed in the form of transport stream packets,... |
| 6959090 |
Content Protection scheme for a digital recording device |
| Oct-25-2005 |
A recording device for digital data streams, such as digital TV broadcasts or digitized music, stores copies of program content encrypted by a key unique to the recording device. Distribution of program... |
| 6956948 |
Apparatus and method for generating multiple scrambling codes in asynchronous mobile communication system |
| Oct-18-2005 |
An apparatus and method for generating multiple scrambling codes in an asynchronous mobile communication system. In a scrambling code generating apparatus for generating a current scrambling code and a... |
| 6952480 |
Self-synchronous data scrambler |
| Oct-4-2005 |
An encryption system has been provided to self-synchronously scramble communications where the receiver must recover the clock information from the data stream, such as the SONET format. To prevent jamming... |
| 6952477 |
Fault intolerant cipher chaining |
| Oct-4-2005 |
A method and system for producing, e.g., tamper-resistant software such that the software is fault intolerant, thereby complicating hacking attacks, includes undertaking several iterations of forward plain... |
| 6947563 |
Method for assigning encryption keys |
| Sep-20-2005 |
An encryption key matrix has rows grouped into segments, with a set of one segment per column establishing a slot. Slots are assigned to device manufacturers, with the keys of the slots then being assigned... |
| 6944313 |
Method and device for inserting and decoding a watermark in digital data |
| Sep-13-2005 |
A method of inserting a watermark in digital data (I) includes the steps of multi-resolution spectral breakdown (E1) of the digital data (I); extraction (E2) of the components of lowest frequency;... |
| 6941412 |
Symbol frequency leveling in a storage system |
| Sep-6-2005 |
Methods and apparatus for transforming data into a format which may be efficiently stored in a non-volatile memory are disclosed. According to one aspect of the present invention, a method for storing... |
| 6931129 |
Method and apparatus for generating pseudo random numbers in a video device having an embedded cipher unit |
| Aug-16-2005 |
A video source device includes a cipher unit. The video source device uses the cipher unit to generate cipher bits for ciphering video to be transmitted to protect the video from unauthorized copying.... |
| 6928165 |
Communication system using digital watermark for synchronizing multiplexed text data to video frames |
| Aug-9-2005 |
A digital video communication system includes, at a source site, an embedding circuit for embedding a digital watermark in a digital video stream to produce a watermarked digital video stream, and a multiplexer... |
| 6922780 |
Dual chip smart card and method for using same |
| Jul-26-2005 |
A smart card is provided comprising a first processor and a second processor. The first and second processors are capable of decoding a scrambled broadcast signal. The first processor is activated by a... |
| 6920222 |
Conditional access system enabling partial viewing |
| Jul-19-2005 |
A conditional access system includes an EMM (Entitlement Management Message) analyzer for retrieving partial viewing authorization information. When the partial viewing authorization information permits... |
| 6903666 |
Video scramble/descramble apparatus |
| Jun-7-2005 |
A video scramble apparatus has a scrambler for scrambling an input video signal, and a video encoder for performing interframe predictive coding of the video signal after scrambling, and the scrambler... |
| 6901516 |
System and method for ciphering data |
| May-31-2005 |
A system for ciphering data for transmission by a communication device is provided. The system includes a memory device having a memory buffer a first access port connected to the memory buffer and a second... |
| 6898285 |
System to deliver encrypted access control information to support interoperability between digital information processing/control equipment |
| May-24-2005 |
A system for streaming encrypted conditional access (CA) data, such as control words, from a primary or master conditional access provider (CAP) to one or more secondary CAPS. The primary CAP encrypts... |
| 6888943 |
Multimedia adaptive scrambling system (MASS) |
| May-3-2005 |
A system (300, 500) for scrambling digital samples (115, 200, 250, 260, 270) of multimedia data, including audio and video data samples, such that the content of the samples is degraded but still recognizable,... |
| 6873853 |
Method and apparatus for providing commercial broadcasting service in cellular mobile communication network |
| Mar-29-2005 |
A method and an apparatus for providing only authorized mobile subscribers with a specified commercial broadcasting service in a cellular mobile communication network. A base station transmits a control... |
| 6870930 |
Methods and systems for TMDS encryption |
| Mar-22-2005 |
The present invention is directed to systems and methods for protecting digital content during transmission. One version of the invention provides a method for encryption in a high-speed digital video... |
| 6853728 |
Video on demand pay per view services with unmodified conditional access functionality |
| Feb-8-2005 |
A system and method for storing and retrieving program material for subsequent replay is disclosed. The method comprises the steps of receiving access control information and the program material encrypted... |
| 6853731 |
Digital video recorder employing a unique ID to interlock with encrypted video programs stored on a storage device |
| Feb-8-2005 |
The present invention may be regarded as a digital video recorder (DVR) comprising a storage device for storing an encrypted video program, a unique ID for interlocking the encrypted video program with... |
| 6842522 |
Secure digital video disk and player |
| Jan-11-2005 |
A method for recoding data on an optical medium such as DVD. The method includes receiving main data from a data source, determining a plurality of data frame values in response to the main data, inverting... |
| 6839433 |
Method and apparatus for generating a signal that defeats illegal cable decoders |
| Jan-4-2005 |
Illegal cable decoders, i.e., black boxes, are defeated by adding, inserting and/or superimposing an added signal onto an already scrambled video signal, which added signal is capable of disrupting the... |
| 6836549 |
Method and apparatus for synthesizing and reducing the effects of video copy protection signals |
| Dec-28-2004 |
A method and apparatus for defeating copy protection signals in a video signal, and also for providing copy protection signals for a video signal, is disclosed. The defeat technique generally utilizes... |
| 6826281 |
Storage-encryption-retrieval device and method with resulting business processes |
| Nov-30-2004 |
An encryption device includes a card with a grid comprising multiple rows and columns defining boxes for receiving individual characters. One of the columns or rows contains a master password or code character... |
| 6819765 |
Video-signal output apparatus, video-signal input apparatus, and scramble method, and descramble method |
| Nov-16-2004 |
A system, which includes a video-signal output apparatus and a video-signal input apparatus, has a construction in which scrambling or descrambling is performed with a scramble key generated using copy-control... |
| 6812864 |
Video scramble/descramble apparatus |
| Nov-2-2004 |
A video scramble apparatus has a scrambler for scrambling an input video signal, and a video encoder for performing interframe predictive coding of the video signal after scrambling, and the scrambler... |
| 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... |
| 6757909 |
Internet set-top box having an in-band tuner and cable modem |
| Jun-29-2004 |
An apparatus and method thereof for communicating a scramble key (for descrambling scrambled digital signals) and service information (used in an electronic programming guide) to an intelligent transceiver... |
| 6748079 |
Method and system for recording data on and reading data from an optical medium |
| Jun-8-2004 |
Accordingly, an improved method for recording data on an optical medium is disclosed which includes receiving and encoding a first set of data frames by a CIRC encoder to generate a second set of data... |
| 6744892 |
Method and apparatus for geographically limiting service in a conditional access system |
| Jun-1-2004 |
A cable television system provides conditional access to services. The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units... |
| 6742182 |
Descrambling a scrambled television signal using a cable box for authentication |
| May-25-2004 |
Methods, apparatus and computer program products for authenticating the right of a user to descramble and view scrambled television channels are provided. The set top box can use newer and faster technology... |
| 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... |
