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US20150188661 Encrypted Digital Circuit Description Allowing Circuit Simulation  
A system for creating protected functional descriptions of integrated circuits provides an encrypted functional description that allows the integrated circuit to be simulated with respect to...
US20110004796 ACKNOWLEDGMENT CHANNEL DESIGN FOR WIRELESS ACCESS NETWORKS  
Embodiments of the present invention provide an acknowledgment channel design in which an acknowledgment sequence is scrambled with a station-specific scrambling sequence. Other embodiments may be...
US20100232608 OCDM-BASED PHOTONIC ENCRYPTION SYSTEM WITH PROVABLE SECURITY  
In an OCDM-based photonic encryption system by applying random noise on unused channels and varying the inter-code phases on realistic framing repetition, an OCDM-based encryption system with...
US20120207306 On-Demand Download of Partial Encrypted Content for Partial Super Distributed Content  
A request to render content associated with a first super distributed content file is detected by a content rendering device. At least one portion of the content associated with the first super...
US20120288097 CONTENT DISTRIBUTION SYSTEM, MANAGEMENT APPARATUS, AND MOBILE TERMINAL  
A management apparatus includes a collector configured to collect requests of events of which the distribution is required via the network from users of the plurality of terminals, a list...
US20120170754 METHOD FOR DETECTING THE SCRAMBLING OF A RADIOCOMMUNICATION NETWORK, AND CORRESPONDING STORAGE MEANS AND CIRCUIT  
A method is provided for detecting scrambling of a radiocommunication network. The method is applied by a radiocommunication circuit capable of being connected to the network by being synchronized...
US20110051933 PARING METHOD BETWEEN SM AND TP IN DOWNLOADABLE CONDITIONAL ACCESS SYSTEM, SET-TOP BOX AND AUTHENTICATION DEVICE USING THIS  
The present invention relates to a technology of paring a secure micro (SM) and a transport processor (TP) in a downloadable conditional access system (DCAS). More specifically, predetermined...
US20120201384 ADAPTIVE AND PROGRESSIVE AUDIO STREAM SCRAMBLING  
A process for distributing digital audio sequences according to a nominal stream format that include a succession of frames, each of which includes at least one digital audio block grouping a...
US20110311056 FORENSIC MARKING USING A COMMON CUSTOMIZATION FUNCTION  
Methods, systems, and apparatus are disclosed which enable flexible insertion of forensic watermarks into a digital content signal using a common customization function. The common customization...
US20120314870 METHOD FOR GENERATING DOWNLINK FRAME, AND METHOD FOR SEARCHING CELL  
The present invention relates to a method of generating a downlink frame. The method of generating the downlink frame includes generating a first sequence and a second sequence for identifying...
US20060239501 Security enhancements of digital watermarks for multi-media content  
Methods and apparatus for embedding digital watermarks into a digital host content are provided. A digital host content is received, e.g., at a receiver or other device incorporating a receiver....
US20110026712 CONCEALING PLAIN TEXT IN SCRAMBLED BLOCKS  
An apparatus generally having a first circuit and a second circuit is disclosed. The first circuit may be configured to (i) divide a plain text into at least three input blocks and (ii) generate...
US20070230708 Watermarking a Compressed Information Signal  
Disclosed is a method of embedding both a robust and a fragile watermark in an information signal which is compressed so as to include first signal samples having a first given value and further...
US20090199015 METHOD FOR PROTECTING AUDIO CONTENT  
Techniques for protecting information in an audio file are provided. The techniques include obtaining an audio file, detecting information bearing one or more segments in a speech signal, wherein...
US20130236020 MEDIA STORAGE, MEDIA READER AND METHOD FOR READING CONTENTS OF THE MEDIA STORAGE IN THE MEDIA READER  
A media storage device may store content adapted to be inserted in a media reader for reading the content. The content may be encrypted, and the media storage may include a smart object physically...
US20130202112 PROTECTING OPTICAL TRANSPORTS FROM CONSECUTIVE IDENTICAL DIGITS IN OPTICAL COMPUTER NETWORKS  
An example method includes encapsulating, by an optical network device, at least a portion of a data packet to form a passive optical network (PON) frame. The method further includes applying, by...
US20110235803 PERSONALIZED WHITEBOX DESCRAMBLERS  
The invention prevents intercepted keys from being used in unauthorized whitebox descrambler modules for the decryption of a ciphertext. Hereto a receiver with a personalized whitebox descrambler...
US20120224697 METHOD AND TERMINAL FOR IMPLEMENTING HOT-PLUG OF SMART CARD  
A method and terminal for implementing hot-plug of a smart card are disclosed. The method includes: during the process of playing mobile multimedia, a descrambling library sending request...
US20060050884 Hardened automatic synchronisation scheme for ATM cells  
A method of preserving and/or reacquiring synchronisation of ATM cells (10) in an ATM cell transmission system, the ATM cells each including a header (12) and payload (11), the method including...
US20120189126 MAPPING SCHEMES FOR SECONDARY SYNCHRONIZATION SIGNAL SCRAMBLING  
Embodiments of the present disclosure provide a transmitter, a receiver and methods of operating a transmitter and a receiver. In one embodiment, the transmitter includes a synchronization unit...
US20080301431 TEXT SECURITY METHOD  
Disclosed herein is a text security method. The text security method encrypts both a font and a text constituting a text document in the same manner so that the encrypted text can be correctly...
US20100272268 ENHANCED HIGH-SPEED DOWNLINK SHARED CHANNEL SERVING CELL CHANGE PROCEDURES  
Serving cell change procedures are provided from a target cell that instructs a mobile device to change its serving cell to the target cell. Receiving the serving cell change instruction from the...
US20090080665 Method of Generating Secure Codes for a Randomized Scrambling Scheme for the Protection of Unprotected Transient Information  
In many instances it is necessary to store and transfer information and data on a temporary basis. Typically this information and data is transient but is vulnerable to capture and piracy as it is...
US20090196427 SYSTEM AND COMPUTER PROGRAM PRODUCT FOR PROTECTING AUDIO CONTENT  
Techniques for protecting information in an audio file are provided. The techniques include obtaining an audio file, detecting information beating one or more segments in a speech signal, wherein...
US20110170697 Ternary and Multi-Value Digital Signal Scramblers, Decramblers and Sequence Generators  
Reversible and self reversing multi-value scrambling functions created by applying multi-value inverters are disclosed. The generation of possible multi-value inverters is also presented....
US20060013394 ATM data transmission systems  
A method of hardening ATM cells (10), the ATM cells (10) each including a header (12) and payload (11), the method including the steps of hardening individual ATM cells by encoding the header and...
US20050232420 ATM cell handling  
A method of enhancing the resistance of ATM cells (10) to burst errors and jamming, the ATM cells each including a header (12) and payload (11), the method including the step of interleaving the...
US20050066355 System and method for satellite broadcasting and receiving encrypted television data signals  
A system for broadcasting television signals transmits both encrypted program content and access control data over a satellite system to be received by a number of individual receivers, each of...
US20120219155 METHODS AND DEVICES FOR ALLOCATING SCRAMBLING CODES  
Methods and devices are provided whereby scrambling codes can be set in an improved way. In accordance with one embodiment a method is provided in a User Equipment for generating a second...
US20090285402 Service induced privacy with synchronized noise insertion  
A mechanism is disclosed for protecting the privacy of communication content by means of a synchronized noise insertion process operated by counterpart sending and receiving devices. In send mode,...
US20090202066 SCRAMBLER, SCRAMBLE PROCESSING METHOD, AND PROGRAM  
A multiplication value decision unit (12) decides a multiplication value which is a positive value or a negative value corresponding to a bit value of each bit contained in a binary bit string...
US20110044456 Activation of Code Multiplexing  
The present invention relates to a system and a method for transmitting data between a first terminal and a communication network access point. The method may comprise the steps of defining a...
US20090232309 METHOD AND APPARATUS FOR SCRAMBLING FOR DISCRIMINATION OF SEMI PERSISTENT SCHEDULING GRANTS  
A method for wireless communications is provided. The method includes receiving a control payload and a check protocol on a wireless link and decoding the control payload and the check protocol....
US20080267412 Method and Apparatus for Embedding Auxiliary Information in a Media Signal  
The invention relates to a system for embedding auxiliary information in a media signal such as an audio visual signal. An apparatus comprises a quantization index modulator (103) which generates...
US20090262944 SCRAMBLING OF DATA AND REFERENCE SYMBOLS  
The invention relates to a method for scrambling a sequence of symbols comprising at least two reference symbols (R1, R2) and at least one first data symbol (D), said method comprising obtaining a...
US20090316490 METHOD OF WRITING DATA INTO SEMICONDUCTOR MEMORY AND MEMORY CONTROLLER  
A method of writing data into a semiconductor memory (11) in which nonvolatile memory cells (MC) each having a gate connected to a word line (WL) are connected in series, the method comprising...
US20100150354 LOW I/O BANDWIDTH METHOD AND SYSTEM FOR IMPLEMENTING DETECTION AND IDENTIFICATION OF SCRAMBLING CODES  
A system for detecting and identifying the identity of a base station or cell which transmits a scrambling code is provided. According to one aspect of the system, the system is used to perform...
US20100098257 Method and Apparatus for Performing Constellation Scrambling in a Multimedia Home Network  
Systems and methods are provided that allow multiple transmitting network devices to transmit under an orthogonal frequency divisional multiple access (OFDMA) mode to a receiving network device....
US20130315397 SYSTEM AND METHOD TO SCRAMBLE DATA BASED ON A SCRAMBLE KEY  
A data storage device includes a memory and a controller. The controller is configured to scramble data using a scramble key to produce scrambled data and to encode the scramble key to produce an...
US20130016841 System and Method for Multi-Carrier Network Operation  
Methods, devices, and systems for multi-carrier network operation are disclosed. In one embodiment, a method of performing channel scrambling in a multi-carrier network, wherein the multi-carrier...
US20130195275 RESOLVING UE REFERENCE SIGNAL PORT AMBIGUITIES  
A resource allocation for a specific user equipment (UE) is encoded using an encoding scheme that identifies a specific antenna port from among a plurality of antenna ports; and the encoded...
US20130202113 PROTECTING OPTICAL TRANSPORTS FROM CONSECUTIVE IDENTICAL DIGITS IN OPTICAL COMPUTER NETWORKS  
In general, techniques are described for protecting optical networks from consecutive identical digit (CID) errors. An optical network device comprising a control unit and an interface may...
US20070076890 Current flattening and current sensing methods and devices  
Flattening total current consumption of system having processing core and power supply input by current sensing within system at power supply input and controlling system current consumption such...
US20130003979 APPARATUS AND METHOD FOR GENERATING MULTIPLE OUTPUT SEQUENCE  
Provided are an apparatus and method for generating a multiple output sequence. The apparatus includes an update unit configured to update a first shift register having k stages by inputting a...
US20130064368 METHODS AND DEVICES FOR SELECTIVE FORMAT-PRESERVING DATA ENCRYPTION  
Selective data encryption of a file, in particular an H.264/MPEG-4 AVC data stream. If a first unit in the data stream is to be encrypted, it is encrypted and the encryption is put into a further...
US20120219154 STEALTH MESSAGE TRANSMISSION IN A NETWORK  
Embodiments of the invention include methods of transmitting a hidden message within a secured primary data transmission. In one embodiment, a method involves transmitting a primary data...
US20090172791 USER ACCESS METHOD AND SYSTEM  
A user access method and system are provided. The method includes the following steps. After the connection between a terminal and an access network AN is disconnected, a media access control...
US20100260340 COMMUNICATION SYSTEM, RESPONSE NOTIFYING METHOD AND APPARATUS  
To solve a problem that unless all of a plurality of AICH signature states are correctly decoded, the contents of reception results cannot be recognized and the error rate of signature decoding...
US20090122992 Method and Apparatus for Encrypting Encoded Audio Signal  
Advanced solutions for encrypting multi-layer audio data are required, ie. audio data that comprise a base layer and one or more enhancement layers. A method for encrypting such an encoded audio...
US20110129083 UNICODE-COMPATIBLE ENCIPHERMENT  
Unicode character data is received for transcoding. The Unicode character data is transcoded to an intermediate value. The intermediate value is enciphered. The enciphered intermediate value is...

Matches 1 - 50 out of 74 1 2 >