Abstract: A method of forming a data-hiding watermark on a surface may include encoding data within an image using the chrominance data of the of the image, adjusting at least one characteristic of the image to enhance the prominence of the encoded data within the image, and printing the adjusted, encoded image onto the surface.

Abstract: To convey information using an audio channel, an audio signal is modulated to produce a modulated signal by embedding additional information into the audio signal. Modulating the audio signal processing the audio signal to produce a set of filter responses; creating a delayed version of the filter responses; modifying the delayed version of the filter responses based on the additional information to produce an echo audio signal; and combining the audio signal and the echo audio signal to produce the modulated signal. Modulating the audio signal may involve employing a modulation strength, and a psychoacoustic model may be used to modify the modulation strength based on a comparison of a distortion of the modified audio signal relative to the audio signal and a target distortion.

Abstract: Methods and systems for identifying altered content are described herein. The system generates a fingerprint for an unverified content item and locates a plurality of content items that match the fingerprint. The system then compares corresponding frames between the unverified content item and each content item of the plurality of content items. The system identifies, based on the comparing, an altered frame in the unverified content item that does not match a corresponding frame in two or more of the plurality of content items. The system also determines that one or more frames of the unverified content item that follow the altered frame match corresponding frames in the two or more of the plurality of content items. The system then generates for display an indication that the unverified content item contains one or more altered frames.

Abstract: An image coding device adapted to code time-continuous pictures is provided. An embedding position information conversion unit acquires embedding position information indicating a position in a picture, by using a one-way function based on time-continuous information. An image coding unit selects a coding block in the picture based on the embedding position information, embeds electronic watermark information in a coding parameter used to code the coding block, and codes the coding block by using the coding parameter in which the electronic watermark information is embedded.

Abstract: The disclosure relates, e.g., to image processing technology including device to device communication. One claim recites an apparatus for device to device communication using displayed imagery, said apparatus comprising: a camera for capturing a plurality of image frames, the plurality of image frames representing a plurality of graphics displayed on a display screen of a mobile device, in which each of the graphics comprises an output from an erasure code generator, in which the erasure code generator produces a plurality of outputs corresponding to a payload; means for decoding outputs from the plurality of graphics; and means for constructing the payload from decoded outputs; and means for carrying out an action based on a constructed payload. A great variety of other features, arrangements and claims are also detailed.

Abstract: A predictive model utilizes a set of coefficients for processing received input data. To reduce memory usage storing the coefficients, a compression circuit compresses the set of coefficients prior to storage by generating a cumulative count distribution of the coefficient values, and identifying a distribution function approximating the cumulative count distribution. Function parameters for the determined function are stored in a memory and used by a decompression circuit to apply the function the compressed coefficients to determine the decompressed component values. Storing the function parameters may consume less memory in comparison to storing a look-up table for decompression, and may reduce an amount of memory look-ups required during decompression.

Abstract: An attention marker can be transmitted to a radio receiver using an out-of-band transmission. One or more watermarks can be inserted in an over-the-air broadcast. A radio can include a tuner for receiving the over-the-air broadcast; an out-of-band receiver to receive substitute media content and the attention marker; memory to store the substitute media content; a user interface to play out media content to a user; and processing circuitry implementing multiple modules such as a marker detection module, a watermark detection module, and a local playout control module. The marker detection module can detect the out-of-band attention marker, and in response to detection of the attention marker trigger or schedule activation/deactivation of the watermark detection module. If the watermark detection module detects a watermark, the substitute content stored in the memory can be played out in place of the broadcast content.

Abstract: Embodiments of the present application disclose a method and system for identifying whether an application is genuine by means of digital watermarks, which can conveniently determine whether an application is genuine.

Abstract: A method and a system secure a remote video transmission. A marker digitally encoded in bits is generated for an image. The encoded marker contains an identifier of the camera and a time variable. The encoded marker is inserted into the image. The insertion is carried out by adding, for each bit of the encoded marker, a pattern to the image in the spatial domain. The conversion of the pattern into the spectral domain is a predefined sub matrix of which a frequency coefficient encodes the bit of the marker. The encoded marker is extracted from the secure image. The time variable is verified by comparing with the time reference and the identifier of the camera to check the temporal freshness of the secure image and the origin of same. A failure is flagged if one of the items of information included in the encoded marker violates a security criterion.

Abstract: An apparatus comprising a watermark decoder arranged for decoding a watermark signal from a transmission video signal, the watermark signal defining a content area within the transmission video signal for inserting new content within the transmission video signal.

Abstract: A system comprises a plurality of personal devices identified by at least one remote storage network as belonging to a user. A personal device comprises a first folder for storing a known a priori digital file, a second folder for storing a data file, a processor, and a network interface. The processor performs an M-to-M waveform multiplexing transformation on M input files, M>1, and generates M output files. Each output file comprises a respective linear combination of the M input files. The M input files comprise the data file and the known a priori digital file. Each of the M output files appears to human perception as having substantially identical visual or audio features to the known a priori digital file. The network interface sends at least M?1 of the M output files to at least one destination in the at least one remote storage network for storage.

Abstract: The disclosure relates, e.g., to image processing technology including device to device communication. One claim recites an apparatus comprising: a camera for capturing imagery; and one or more processors configured for: analyzing a plurality of image frames captured with said camera, the plurality of image frames representing a plurality of graphics displayed on a display screen of a portable device, in which each of the graphics comprises an output from an erasure code generator, in which the erasure code generator produces a plurality of outputs corresponding to a payload; analyzing the plurality of image frames to decode outputs from the plurality of graphics; reconstructing the payload from decoded outputs; and utilizing the payload to carry out an action. A great variety of other features, arrangements and claims are also detailed.

Abstract: A multi-channel embedded data technique allows for embedding data, such as watermarks into multiple channels of audio, video, multi-media, and other digitized content streams. Two or more of the channels may be utilized. The embedded data may be segmented within each channel, and these segments may start and stop at identical times, or may be staggered or offset from one another. The available payload may be used for different data, or redundant data, providing enhanced reliability. Staggering allows for more rapid availability of at least some of the embedded data segments. References may be used between channels and between data streams to provide for highly complex configurations of encoding and decoding of the embedded data.

Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for receiving audio data corresponding to an utterance, determining that the audio data corresponds to a hotword, generating a hotword audio fingerprint of the audio data that is determined to correspond to the hotword, comparing the hotword audio fingerprint to one or more stored audio fingerprints of audio data that was previously determined to correspond to the hotword, detecting whether the hotword audio fingerprint matches a stored audio fingerprint of audio data that was previously determined to correspond to the hotword based on whether the comparison indicates a similarity between the hotword audio fingerprint and one of the one or more stored audio fingerprints that satisfies a predetermined threshold, and in response to detecting that the hotword audio fingerprint matches a stored audio fingerprint, disabling access to a computing device into which the utterance was spoken.

Abstract: Methods, systems and devices enable enhanced delivery of metadata, as well as auxiliary programs and services associated with a primary content. In one method, a primary content with pre-existing watermarks is received at a content distributor device. The pre-existing watermark include specific fields that allow retrieval of a first metadata. The values and boundary locations of the symbols of the pre-existing watermark messages are determined, and symbols of a new watermark message are embedded in the primary content to render the pre-existing watermarks undetectable. The new watermark message includes symbol values that different from those in the pre-existing watermark messages and enable retrieval of a second metadata. Upon transmission of the primary content to a client device, detection of the new watermark message, and initiation of a request by the client device, access to the first or the metadata, as well as associated programs or services, are enabled.

Abstract: A system and method for generating a unique identifier for a user. A processor hosted by the system transmits a prompt for user selection of a digital image and receives the selected digital image from the user. The received digital image is stored in a data storage device. The processor identifies a first code associated with the user. The processor embeds the first code into the digital image and generates a first modified digital image in response. The first modified digital image is also stored in the data storage device. The processor transmits the first modified digital image to the user over a data communications network. The modified digital image is then used as the unique identifier for the user.

Abstract: A device for visual monitoring comprises a mobile chipset disposed in a housing, at least one eyestalk attached to the housing and communicatively coupled to the mobile chipset, and mounting hardware affixed to the housing, the mounting hardware configured to secure the housing to a stationary structure. In one embodiment, the mobile chipset is configured to execute a set of program instructions in response to the device being connected to external power, including program instructions which, when executed by the mobile chipset, causes the device to take pictures in response to automatically generated triggers, and to automatically upload image data to a packet-based network for display and/or further processing. In a further embodiment, the device is configured to pre-process the image data, such as extracting relevant data for a specific application, before uploading the image data to the packet-based network for further process.

Abstract: Provided are a watermark insertion apparatus and method. The watermark insertion method includes acquiring content through upload by a user, storing the uploaded content, receiving a content conversion request from a user or a manager, determining whether content for which content conversion has been requested is video or an image, converting the content according to the determined content kind, and inserting watermark suitable for the content kind into the converted content.

Abstract: A user interaction activation may be provided. A plurality of signals received from a user may be evaluated to determine whether the plurality of signals are associated with a visual display. If so, the plurality of signals may be translated into an agent action and a context associated with the visual display may be retrieved. The agent action may be performed according to the retrieved context and a result associated with the performed agent action may be displayed to the user.

Abstract: At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram expressed at least in the polar coordinate system. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data streams respectively.

Abstract: At the transmitter side, carrier waves are modulated according to an input signal for producing relevant signal points in a signal space diagram. The input signal is divided into, two, first and second, data streams. The signal points are divided into signal point groups to which data of the first data stream are assigned. Also, data of the second data stream are assigned to the signal points of each signal point group. A difference in the transmission error rate between first and second data streams is developed by shifting the signal points to other positions in the space diagram expressed at least in the polar coordinate system. At the receiver side, the first and/or second data streams can be reconstructed from a received signal. In TV broadcast service, a TV signal is divided by a transmitter into, low and high, frequency band components which are designated as a first and a second data streams respectively.

Abstract: 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 length is assigned to a second group of signaling bits. The first bit sequence is scrambled with a first scrambling sequence, and the second bit sequence is scrambled with a second scrambling sequence different from the first scrambling sequence. A first and a second orthogonal frequency-division multiplexing (OFDM) symbol are assigned to the first and the second scrambled bit sequences respectively, and the first and second orthogonal frequency-division multiplexing (OFDM) symbols are transmitted as synchronization symbols of a data frame. Further, a corresponding method for receiving the data frame, and apparatuses for transmission and reception are disclosed.