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8897453 Methods and apparatus for synchronization of data frames  
In accordance with an example embodiment of the present invention, a first bit sequence of a first length is assigned to a first group of signaling bits. Further, a second bit sequence of a second...
8797457 Apparatus and method for frame rate preserving re-sampling or re-formatting of a video stream  
An apparatus configured to match an input frame rate of a video stream with an output frame rate of an output stream, the apparatus comprising, at least one memory buffer, an output frame...
8489403 Apparatuses, methods and systems for sparse sinusoidal audio processing and transmission  
The APPARATUSES, METHODS AND SYSTEMS FOR SPARSE SINUSOIDAL AUDIO PROCESSING AND TRANSMISSION (hereinafter “SS-Audio”) provides a platform for encoding and decoding audio signals based on a sparse...
8477937 Methods and systems for providing interference based physical-layer encryption  
A method for encrypting an information carrier comprising generating a sequence of data using a sequence generator, modulating, using a first modulator an output from the sequence generator such...
8396215 Signal transmission apparatus and signal transmission method  
A signal transmission apparatus includes: a serial-to-parallel conversion unit serial-to-parallel converting HD-SDI format serial digital video signals of Link A containing CH1, CH3, CH5, and CH7,...
8386790 Method of using ECDSA with winternitz one time signature  
A method is provided of authenticating a digitally signed message. A chain of messages is generated. A Winternitz pair of keys is generated for each respective message. A sequence number is...
8387142 System and method for radio frequency intrusion detection  
A system to detect and analyze RF signals utilizes a data structure storing RF signatures indicating characteristics of known authorized and/or unauthorized RF transmissions. When an RF signal is...
8374489 Method and apparatus for inducing and or reducing geometric distortions in a display via positive going pulses  
In certain flat screen TV sets, such as LCD monitors, geometric errors can be induced in a video signal by positive going pulses. That is, a shift in a display is provided when one or more...
8365307 Method and apparatus for storing copy protection information separately from protected content  
A copy protection apparatus and method enabling storage of copy protection information separately from protected content is disclosed. One embodiment includes a digital data signal receiver to...
8320565 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 short sequence and a second short sequence...
8184812 Secure computing device with monotonic counter and method therefor  
A secure computing device (14) includes a secure processing section (30) having a tamper detection circuit (58) and a monotonic counter (68). The tamper detection circuit (58) detects an event...
8094818 Method to synthesize video copy protection signals  
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...
7882357 System and method of retrieving a watermark within a signal  
A system, method and computer readable medium that processing a watermarked signal using the phase Sk(f) of an original signal. The watermarked signal includes odd and even overlapped blocks where...
7844072 Watermark embedding and detection of a motion image signal  
Methods and arrangements are disclosed for embedding and detecting a watermark in a cinema movie, such that the watermark can be detected in a copy made by a handheld video camera. The watermark...
7840005 Synchronization of media signals  
A method for synchronization of a media signal computes features of the media signal and determines redundancy of the features to establish synchronization. The synchronization method is adapted...
7802101 System and method of retrieving a watermark within a signal  
A system and method of retrieving a watermark in a watermarked signal are disclosed. The watermarked signal comprises odd and even overlapped blocks where the watermark is contained in the even...
7784103 Method and apparatus for storing copy protection information separately from protected content  
A copy protection system and method enabling storage of copy protection information separately from protected content is disclosed. One embodiment includes a mechanism for playing a recording...
7664960 Password enhancing device  
A device strengthens a user password while the password occupies the keyboard input buffer of an authenticating system. The device masquerades to the system as a second keyboard. The device...
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...
7620181 Communications system with minimum error cryptographic resynchronization  
A synchronized communications system permits resynchronization in late-entry or fade-recovery conditions. A plurality of communications devices are operative for communicating in a synchronized,...
7583802 Method for using a synchronous sampling design in a fixed-rate sampling mode  
The present application generally relates to apparatuses such as television signal processing apparatus that process radio frequency signals. More specifically, the present application is...
7529941 System and method of retrieving a watermark within a signal  
A system and method of retrieving a watermark in a watermarked signal are disclosed. The watermarked signal comprises odd and even overlapped blocks where the watermark is contained in the even...
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...
7430585 Secure processing unit systems and methods  
A hardware Secure Processing Unit (SPU) is described that can perform both security functions and other information appliance functions using the same set of hardware resources. Because the...
7403619 Interface module and decoder for host  
The present invention relates to an interface module for a host (2) such as a digital television decoder, permitting the processing of information coming from the host (2) in a conditioned manner...
7239702 Information recording/reproducing device  
Contents data that have been enciphered and transmitted are recorded as they are on a recording medium, and the contents key used to encipher these data is enciphered in a way used in this...
7155016 Communication device and method for using non-self-synchronizing scrambling in a communication system  
A communication device for use in a non-self synchronizing scrambling (NS3) communication system and a method for using NS3 in a communication system are disclosed. A digital data stream is...
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...
7076538 Method and system for disguising a computer system's identity on a network  
A method and system are disclosed for substituting an anonymous Universal Unique Identifier (UUID) for a computer system's real UUID in order to disguise an identity of the computer system to an...
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...
7043019 Copy protection for digital motion picture image data  
An apparatus and method for displaying a copy-deterrent pattern (104) within a digital motion picture in order to discourage recording of the motion picture using a video camera or other sampling...
6944771 Method and apparatus for overcoming a watermark security system  
To overcome a watermark security system that is based on a limited set of possible watermark values, a collection of authentic watermarked material is created, and a substitution system provides...
6836549 Method and apparatus for synthesizing and reducing the effects of video copy protection signals  
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...
6731757 Multichannel digital signal generation method and apparatus  
A method of and apparatus for digitally generating a broadband signal comprising a plurality of CW or quadrature modulated signals having incrementally related frequencies wherein said plurality...
6711261 Enhancing concealment in the presence of fine mistuning for various TV scrambling techniques  
An improved method and apparatus for maintaining concealment for a scrambled signal when frequency pre-emphasis is used to defeat the scrambling. The pre-emphasis may be synthesized with high pass...
6633982 Method and process for managing ultra secure electronic distribution of digital movies to commercial exhibitors  
A method and system for managing electronic distribution of digital movies to commercial exhibitors at warp speed is made ultra secure by utilizing synchronized and concurrent digitally bifurcated...
6618484 Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels  
Electronic steganographic techniques can be used to encode a rights management control signal onto an information signal carried over an insecure communications channel. Steganographic techniques...
6594361 High speed signal processing smart card  
An access control system for signal processing applications includes an integrated circuit (IC) card, or “smart” card, that provides both security control and data descrambling functions. A...
6529600 Method and device for preventing piracy of video material from theater screens  
A method and device for preventing video tape piracy of video material shown by an electronic projector by varying frequently the frame rate, line rate or pixel rate of the projector. In a...
6501842 Method and apparatus for modifying a video signal by back porch lowering  
Method and apparatus for modifying or reducing effects of signals added to a video signal to permit more unhampered copying and/or viewing thereof. In one version the method and apparatus replace...
6477253 Method and apparatus for television signal scrambling using vertical sync replacement  
A method and device for scrambling video signals for broadcast in a proprietary television system includes modifying the vertical or horizontal synchronization pulses of the video signal to...
6459795 Method and apparatus for enhancing the scrambling of a TV signal via erroneous clamp signals  
An improved television scrambling signal is achieved by adding erroneous clamp pulses into a television signal after the signal may have been previously scrambled, for example, by prior art...
6424716 Method and apparatus for improved horizontal and vertical overlay signals for greater concealment in modern TV sets  
Video signals are scrambled by position modulating or switching between two types of modified horizontal sync pulses. These modified horizontal pulses are modulated or switched at a rate that...
6404889 Protection of a component video signal  
A VGA (or other component video signal) output, e.g. from a computer or DVD player, is protected so it is viewable on a VGA monitor. However, if the component video signal is converted to...
6295360 Method and apparatus to defeat composite video signal protection  
A VGA (or other component video signal) output, e.g. from a computer or DVD player, is subject to protection so it is viewable on a VGA monitor. If the component video signal is converted to...
6292567 Sync suppression television security system with addressable sync restoration  
A television transmission security system, including scrambling a television signal by suppressing at least one of the horizontal sync pulse and vertical blanking interval of the television...
6208737 Method and apparatus for television signal scrambling using the replacement of synchronizing and color subcarrier signals with an alternative time base inherent in a QPSK audio subcarrier  
A novel method and apparatus for scrambling a television signal includes using a synchronization separator to separate a synchronization signal from an input audio-visual signal. The...
6192074 Fixed frequency source timing processor method and apparatus  
The decoder method and apparatus receives an information stream comprising timing information and respective payload information. A substantially fixed frequency source is used to generate local...
6175630 Method and apparatus for level and phase control of a plurality of RF signals  
A multichannel television access control system is disclosed wherein processing of the broadband signal is performed by gated coherent RF injection on a plurality of channels, thereby effecting...
6064989 Synchronization of cryptographic keys between two modules of a distributed system  
The apparatus comprises: a first module including a universal key; a second module including a unique identifier and a unique key wherein the unique key is derived from the unique identifier and...

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