Abstract: A method for testing a speaker (212) and microphone (216) of a communication device (110) is provided. The method includes playing a first audio signal through the speaker (212) and determining whether the first audio signal is audible. If the first audio signal is audible, the communication device (110) receives a second audio signal through its microphone (216) and plays the second audio signal through the speaker (212). If the second audio signal is audible the method determines that the microphone (216) is properly functioning. Such a method allows the communication device (110) to be quickly and easily tested.

Abstract: Embodiments of an inspection system and method for a collection of information objects, for example, a collection of executable software applications may be inspected for computer viruses, or a collection of genomes may be inspected for common or unique gene sequences. Information objects may contain identified sequences of instructions, each of which may be labeled with a symbol. In the software context, programming languages may include symbols that indicate functionality. In some embodiments, an inspection of the statistical properties of the information objects and their included symbols may allow for the symbols (and thus instruction sequences) to be grouped into logical components. In some embodiments, objects that include individual logical components may be grouped together. These groupings and their dependencies may be used to determine the structure of each object by detailing its constituent components, how they relate or depend on one another, and how the information object may function.

Abstract: A method, apparatus and computer program product for non-uniform per-packet priority marking for use with adaptive protocols is presented. A packet is received at a first network device, the packet assigned to a priority band. A priority is determined for the packet between a lowest priority of the priority band and a highest priority of the priority band, the priority for the packet selected based on a target distribution of priorities within the priority band, the target distribution comprising a distribution selected to achieve a desired capacity relationship among groups of packets assigned to different priority bands. The selected priority is assigned to the packet.

Abstract: The disclosed systems and methods provide for the compression and decompression of packet headers. An uncompressed header can be compressed in size to form a smaller, compressed header, such that the compressed header can include values that can be used to re-produce the uncompressed header. A compressed header can include at least two such values. A first value of the at least two values can be computed based on a second, earlier uncompressed header and can be used to derive the uncompressed header. Similarly, a second value of the at least two values can be computed based on a third uncompressed header and can be used to derive the same uncompressed header. Accordingly, the uncompressed header can be derived based on the first value and the second uncompressed header, or based on the second value and the third uncompressed header. The uncompressed header, second uncompressed header, and third uncompressed header can be associated with different packets.

Abstract: An optical receiver may include a unitary transformation operator to receive an n-symbol optical codeword associated with a codebook, and to perform a unitary transformation on the received optical codeword to generate a transformed optical codeword, where the unitary transformation is based on the codebook. The optical receiver may further include n optical detectors, where a particular one of the n optical detectors is to detect a particular optical symbol of the transformed optical codeword, and to determine whether the particular optical symbol corresponds to a first optical symbol or a second optical symbol. The optical receiver may also include a decoder to construct a codeword based on the determinations, and to decode the constructed codeword into a message using the codebook. The optical receiver may attain superadditive capacity, and, with an optimal code, may attain the Holevo limit to reliable communication data rates.

Abstract: Systems, methods, and devices for decoy routing and covert channel bonding are described. The decoy routing system includes a client computing device, a decoy router, and a decoy proxy such that packets addressed to a decoy destination are re-routed by the decoy router to a covert destination via the decoy proxy. The decoy routing method may be applied to a covert channel bonding process, in which a plurality of packet data streams are sent to one or more decoy destinations, re-routed appropriately via one or more decoy routers and/or decoy proxies, and assembled together into a single packet data stream at either a decoy proxy, or a final covert destination.

Abstract: A method includes receiving a process request, identifying a current state of a device in which the process request is to be executed, calculating a power consumption associated with an execution of the process request, and assigning an urgency for the process request, where the urgency corresponds to a time-variant parameter to indicate a measure of necessity for the execution of the process request. The method further includes determining whether the execution of the process request can be delayed to a future time or not based on the current state, the power consumption, and the urgency, and causing the execution of the process request, or causing a delay of the execution of the process request to the future time, based on a result of the determining.

Abstract: Methods and systems for providing start and stop properties to Semantic Web structured resources and statements are disclosed. The start and stop properties can specify a lifetime during which a resource or statement can be valid. A call or query to one or more resources can return statement data including the start and stop properties for the resources and/or statements. Dates can be specified with the call or query such that the returned resources and statements have lifetimes including the specified dates. Screen images of the data can display subject and object nodes and predicate arcs for the selected dates. A sequence of screen images can display a timeline of nodes and arcs by adding or hiding nodes and arcs to correspond with the start and stop properties of the statements. Tools are provided for the user to navigate through the sequence.

Abstract: An optical imaging system includes a transmitter configured to generate spatially entangled quantum states of light to probe reflective targets, a target configured to reflect the spatially entangled quantum states of light and a receiver configured to receive and detect the spatially entangled quantum states of light, thereby decoding a message encoded in a memory.

Abstract: The systems and methods described herein include an acoustic sensor having piezoelectric material housed in a cartridge and sealed with a solid nonporous stainless steel cover. The systems include additional elements to tune the performance of the acoustic sensor for measuring shockwaves on the surface of an aircraft, such as a helicopter. In particular, the system includes several vibration isolating elements including foam pads and O-rings disposed between the cartridge and the cover for isolating the piezoelectric material from aircraft vibration and turbulence. Additionally, the systems and methods include circuitry for converting analog electrical signals generated by the piezoelectric material, in response to acoustic signals, to digital electrical signals.

Abstract: Systems and methods for, among other things, removing sensitive data from an recording. The method, in certain embodiments, includes receiving an audio recording of a call and a text transcription of the audio recording, identifying events which occur during the call by detecting characteristic audio patterns in the audio recording and selected keywords and phrases in the text transcription, determining, from the identified events, a first event which precedes sensitive data in the call and a second event which occurs after sensitive data in the call, determining a portion of the call containing sensitive data with a start time at the first event and an end time at the second event, and removing the portion of the call between the start time and end time from the audio recording.

Abstract: A packet is classified into a class. A priority value is assigned to the packet wherein packets in a flow are assigned priorities according to some probability distribution within some band. A determination is made, at a network device for a highest latency class, whether a sum of queued packet sizes of previously received packets having an equal or smaller latency class than the packet and larger or equal priority than the packet is larger than a threshold value. When the sum is larger, the packet is dropped, otherwise a determination is made whether a latency class of the packet is less than the latency class of the network device. When the latency class is not less, the packet is stored in a queue for the latency class. When the latency class is less, then the process is repeated until the packet is dropped or stored in a queue.

Abstract: Methods, apparatus, system and computer program are provided for concealing the identity of a network device transmitting a datagram having a network layer header. A unique local identifier and broadcast address are determined in accordance with a next-hop address. A partially encrypted network layer header is determined by encrypting a plurality of identifying portions of the network layer header, where one portion of the network layer header is the unique local identifier. The datagram is encapsulated with another network layer header whose address is set to the broadcast address. The encapsulated datagram can be received and detunneled, and an address of a recipient can be extracted from the network layer header. The datagram is then admitted into a network domain.

Abstract: A method and apparatus for receiving a group of data messages via a network is provided. A data message is received via the network (402, 602). A determination is made regarding whether the data message has an associated valid integrity check value (404, 604). When the data message is determined to have the associated valid integrity check value, a determination is made regarding whether a specific number of data messages has been received with associated valid integrity check values (418, 616). When the specific number of the data messages is determined to have been received with associated valid integrity check values, the data message is accepted (422, 618).

Abstract: This invention relates to methods and systems for providing data from a distributed array. In one aspect, the array is a sensor array that includes sensor nodes that are each associated with one or more sensors, and the data includes sensor data acquired from the sensors by the sensor nodes. The sensor array employs modular and interchangeable sensor nodes that are capable of self-organizing in response to a network disruption while maintaining a flow of synchronized data to the event monitor. This self-organizing characteristic enables the overall network of nodes to be self-healing and easily extensible. The improved fault resilience makes it possible to deploy the sensors without requiring complex monitoring or fault diagnosis. Embodiments of the invention can be employed in any number of applications, including without limitation, tunnel activity detection, seismic/acoustic monitoring/detection and other applications where gathering sensor data may be desired.

Abstract: An optical receiver may include a unitary transformation operator to receive an n-symbol optical codeword associated with a codebook, and to perform a unitary transformation on the received optical codeword to generate a transformed optical codeword, where the unitary transformation is based on the codebook. The optical receiver may further include n optical detectors, where a particular one of the n optical detectors is to detect a particular optical symbol of the transformed optical codeword, and to determine whether the particular optical symbol corresponds to a first optical symbol or a second optical symbol. The optical receiver may also include a decoder to construct a codeword based on the determinations, and to decode the constructed codeword into a message using the codebook. The optical receiver may attain superadditive capacity, and, with an optimal code, may attain the Holevo limit to reliable communication data rates.

Abstract: A method includes receiving a process request, identifying a current state of a device in which the process request is to be executed, calculating a power consumption associated with an execution of the process request, and assigning an urgency for the process request, where the urgency corresponds to a time-variant parameter to indicate a measure of necessity for the execution of the process request. The method further includes determining whether the execution of the process request can be delayed to a future time or not based on the current state, the power consumption, and the urgency, and causing the execution of the process request, or causing a delay of the execution of the process request to the future time, based on a result of the determining.

Abstract: Systems and methods for facilitating communication including recognizing speech in a first language represented in a first audio signal; forming a first text representation of the speech; processing the first text representation to form data representing a second audio signal; and causing presentation of the second audio signal to a second user while responsive to an interrupt signal from a first user. In some embodiments, processing the first text representation includes translating the first text representation to a second text representation in a second language and processing the second text representation to form the data representing the second audio signal. In some embodiments include accepting an interrupt signal from the first user and interrupting the presentation of the second audio signal.

Abstract: The present invention increases the available spectrum in a wireless network by sharing existing allocated (and in-use) portions of the RF spectrum in a manner that minimizes the probability of interfering with existing legacy users. Interference temperature-adaptive waveforms, and a variety of physical and media access control protocols for generating waveforms based on measurement and characterization of the local spectrum are provided. The invention measures the local spectrum at a receiving node, generates an optimal waveform profile specifying transmission parameters that will water-fill unused spectrum up to an interference limit without causing harmful interference to primary and legacy transmitters using the same frequency bands, and enables simultaneous transmit and receive modes at multiple transceivers in a wireless network.

Abstract: Systems and methods for marking stereo pairs of images include an imaging device for retrieving a collection of images that are representative of a volume, where the images can be representative of a physical volume or a volumetric set of data. A computing machine identifies image elements within the retrieved collection of images representative of a volumetric set of data, and further generates image element values that are based in part on the identified image elements. The computing machine further generates a stereoscopic pair of projection images having two members, where each member of the pair is based in part on at least one image element value generated by the computing machine. A viewing apparatus displays either the calculated stereoscopic pair of projection images or a pair of stereo images selected from images representative of a physical volume, such that when the pair of images are viewed through a portion of the viewing apparatus, the resultant display is a perceived three dimensional image.