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7620253 |
Steganographic systems and methods
The present invention relates to steganographic systems and methods. Once claim recites a method including: obtaining video content, wherein the video content comprises a steganographic signal...
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7613296 |
M6 block cipher system and method for encoding content and authenticating a device
An M 6 block cipher system and method for encoding content and authenticating a device may use an M 6 core. The M 6 block cipher system may include a rotate constant selector selecting one or...
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7606388 |
Contents border detection apparatus, monitoring method, and contents location detection method and program and storage medium therefor
A contents border detection apparatus and monitoring method. The apparatus comprises a digital watermark detector for detecting a digital watermark embedded in contents for which a time element is...
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7599927 |
Method for searching content particularly for extracts common to two computer files
The present invention relates to searching content, particularly for at least one extract common to a first data file and a second data file. The method comprises a preliminary step of preparing at...
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7555432 |
Audio steganography method and apparatus using cepstrum modification
Audio steganography methods and apparatus using cepstral domain techniques to make embedded data in audio signals less perceivable. One approach defines a set of frames for a host audio signal,...
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7546466 |
Decoding of watermarked information signals
Method and apparatus are described for compensating for time offset in a received signal, so as to correctly align the frame sequence of a received signal to a sequence of transmitted symbols. Each...
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7532725 |
Systems and methods for permitting open access to data objects and for securing data within the data objects
A system and methods for permitting open access to data objects and for securing data within the data objects is disclosed. According to one embodiment of the present invention, a method for...
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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...
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7526090 |
Secured radio communications method
A data processing system, method, and product are disclosed for securing radio transmissions utilizing a conventional radio. A conventional radio and a computer system are provided. The computer...
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7508944 |
Using classification techniques in digital watermarking
A classification scheme assigns samples of the watermarked media to classes based on a classification criteria indicating a likely presence of a watermarked signal. Once classified, the scheme...
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7489797 |
Method and apparatus for fragile watermarking
A method of fragile watermarking is characterized by the step of generating at least a first ill-conditioned operator, said ill-conditioned operator being related to values extracted from an image...
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7487356 |
Digital watermarking system using scrambling method
An encoding apparatus that embeds a watermark in host data is provided. A multiplexer generates a plurality of bit sequences by adding initial data to the head of the watermark. A scrambler...
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7482946 |
Method and apparatus for camouflaging business-activity information in a telemetry signal
One embodiment of the present invention provides a system that camouflages business-activity information in telemetry signals from a computer system. During operation, the system monitors telemetry...
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7482947 |
Camouflaging business-activity information in a telemetry signal through randomization
One embodiment of the present invention provides a system that camouflages business-activity information in telemetry signals from a computer system. During operation, the system monitors telemetry...
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7451319 |
System and method of watermarking a signal
A system and method of generating a watermarked signal are disclosed. The system segments the signal into overlapping blocks using a window function and processes the overlapping blocks according...
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7372965 |
Electric circuit management method and device
The invention proposes a method of managing an electronic circuit of the type comprising a memory (EEPROM) for the storage of confidential information, the method comprising masking variations of...
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7370363 |
Electronic information embedding method and extracting method, electronic information burying apparatus and extracting apparatus, and programs therefor
On embedding electronic watermark data in point group data obtained from a three-dimensional measurement, an x-y plane region defining the point group data is divided into a plurality of small...
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7359513 |
Quantum cryptography protocol
An apparatus and method for implementing a quantum cryptography system encoding bit values on approximations of elementary quantum systems with provable and absolute security against photon number...
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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)...
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7346165 |
Apparatus and method for generating scrambling code in mobile communication system
An apparatus generates a scrambling code in a mobile communication system by performing one or more mask operations on an input state value. The apparatus includes a register memory which receives...
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7333965 |
Classifying text in a code editor using multiple classifiers
Multiple independent classifiers of a code editor are used to classify a range of text. Each classifier is an independent classifier and can independently classify any given range of text....
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7324646 |
Method and apparatus for film anti-piracy
A method and apparatus is disclosed for introducing alterations or distortions in projected images. The distortions on the projected image are imperceptible to a human viewer. The distortions are...
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7305089 |
Picture taking apparatus and method of controlling same
The camera includes a sensor for sensing the photographer's iris image and registering the image in advance. The iris image is recorded in the image of a subject by a digital MCU at a timing...
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7290141 |
Authentication of remotely originating network messages
A method and system for authenticating messages received from users across multiple remote devices are provided. A residential gateway authenticates a user using a modified digest authentication...
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7277871 |
Digital watermark system
A digital watermark embedding apparatus generates an echo signal, which is delayed a time period corresponding to digital watermark information to be embedded with respect to each tone signal that...
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7251327 |
Data transmission apparatus, data transmission method, and data recording medium
A system control circuit 5 determines whether or not an external apparatus connected to an interface 14 is one that can store data, by transmitting data to the apparatus through the interface ...
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7239707 |
Staggered pulse acquisition method and apparatus
A transmitter employing a cryptographic algorithm and key generates and transmits a staggered pulse signal that includes a plurality of high-power pulses that are part of a pseudonoise (PN) code....
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7231271 |
Steganographic method for covert audio communications
Method for embedding a covert message within a digital audio signal. The existence of the covert message is undetectable and the information content of the covert message can be further rendered...
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7190792 |
Systems and methods for retrofitting electronic appliances to accept different content formats
Systems and methods are disclosed for using an arbitrary fixed channel to carry third-party information. In one embodiment, the present invention provides systems and methods for enabling existing...
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7181022 |
Audio watermarking to convey auxiliary information, and media embodying same
Methods of processing audio to convey auxiliary information therein without audible evidence of data alteration. Various arrangements are disclosed. One receives plural bit auxiliary data in which...
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7177430 |
Digital entroping for digital audio reproductions
The present invention provides a system and method for introducing white noises into a digital audio signal so that there is progressive and cumulative degradation in audio quality after each...
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7177429 |
System and methods for permitting open access to data objects and for securing data within the data objects
A system and methods for permitting open access to data objects and for securing data within the data objects is disclosed. According to one embodiment of the present invention, a method for...
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7146503 |
System and method of watermarking signal
A system and method of generating a watermarked signal are disclosed. The system segments the signal into overlapping blocks using a window function and processes the overlapping blocks according...
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7142670 |
Space-efficient, side-channel attack resistant table lookups
Methods, apparatus and computer software and hardware products providing method, apparatus and system solutions for implementing table lookups in a side-channel attack resistant manner. Embodiments...
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7140037 |
Signal reproducing apparatus and method, signal recording apparatus and method, signal receiver, and information processing method
A signal ( 801 ) of a first code string made through replacing a part of a code string of a predetermined format with dummy data is sent to code string rewriting means ( 1802 ) via code string...
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7131007 |
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...
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7127620 |
Power analysis resistant coding device
A coding device for implementing a cryptographic encryption and/or access authorization includes a data processing unit, a decoupling unit, a power supply interface, a main clock supply unit, and a...
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7124442 |
System and method for insertion and retrieval of microthreads in transmitted data
A system for the insertion of microthreads in transmitted data is provided. The system includes a digital content system providing carrier data, such as sampled audio data. A microthread insertion...
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7046808 |
Method and apparatus for detecting processing stages applied to a signal
A system for determining the amount of processing that has been applied to watermarked signal. A steganographic signal is provided that includes an original signal and an embedded fragile...
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7043022 |
Packet order determining method and apparatus
A transmitter adds packet transmission order information to transmitted packets using a forward error device ( 416 ) and a masking device ( 420 ). The masking device ( 420 ) receives ordering masks...
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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...
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7039614 |
Method for simulcrypting scrambled data to a plurality of conditional access devices
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...
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7024175 |
System for masking microphonic voice signals in wired telecommunications equipment
A system to thwart eavesdropping on microphonic audio signals generated by a powered telecommunications device connected to a communications line, comprising a noise generator for applying low...
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7020281 |
Timing attack resistant cryptographic system
A method for determining a result of a group operation performed an integral number of times on a selected element of the group, the method comprises the steps of representing the integral number...
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7003118 |
High performance IPSEC hardware accelerator for packet classification
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,...
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6996237 |
Apparatus and methods for including codes in audio signals
Apparatus and methods for including a code having at least one code frequency component in an audio signal are provided. The abilities of various frequency components in the audio signal to mask...
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6993133 |
Data recording and reproduction apparatus
A data recording and reproduction apparatus is provided with a stream attribute decision means for deciding whether an audio data stream supplied from an outside source is compressed or not. A...
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6954541 |
Method of detecting changes occurring in image editing using watermarks
A method of editing a digital image having associated embedded data, such as printing hints, includes embedding a first watermark in the original image before the image is edited. The first...
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6931527 |
Method and system for ensuring the security of fax transmission using an identifying card
The invention concerns a method and system for safely transmitting a fax between a transmitter sending the fax and at least a receiver ( 11 ) receiving the fax ( 162 ) using a fax machine ( 161 )...
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6915002 |
Multi-carrier watermarks using carrier signals modulated with auxiliary messages
A watermark embedder encodes auxiliary information, such as a binary message, into a host media signal by modulating message signals with two or more corresponding carrier signals to form a...
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