Abstract: The invention concerns a device for countering and tracking a threat in the form of a homing-head missile, comprising a homing head adapted to receive an incident coherent light beam and to deflect same to produce a transmitted beam. The invention is characterized in that the homing head comprises a biprism including two prisms made of different materials and adapted to divide the transmitted beam into two sub-beams, the refractive index difference between the prisms being adapted to introduce an optical path difference between the two sub-beams which is greater than the coherence length of the incident beam.

Abstract: Disabling data channels at a customer premises provides, in one embodiment, generating at least one jamming signal and inserting the at least one jamming signal at a first frequency to jam at least one carrier frequency channel. The jamming signal may be hopped to at least one additional frequency different from the first frequency to jam at least one additional carrier frequency channel.

Abstract: An RF redirection module incorporated into an RF system already having a receive antenna and a first transmit antenna allows the RF system to be coupled to a second transmit antenna and to provide a transmit signal to the second transmit antenna.

Abstract: A system and method are provided for transmitting a broadband interference signal and allowing communication through the transmitted interference signal. The system includes an interference transmitter for transmitting the interference signal, the interference transmitter having a transmitter feeder and a first antenna; a radio receiver for receiving a radio signal, the radio receiver having a radio feeder and a second antenna collocated with the first antenna of the interference transmitter; a steering signal generator for introducing at least one steering signal into the interference signal at the transmit feeder; a first directional coupler for sampling a portion of the interference signal that includes at least one of the steering signals; a negative feedback loop for adjusting the amplitude and phase of the sampled portion of the interference signal; and a second directional coupler for coupling the adjusted sampled portion of the interference signal into the radio feeder.

Abstract: Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.

Abstract: A microcontroller includes first and second modules. The first module can operate in a mode that causes interference with operation of the second module. A control circuit on the first module and a control circuit on the second module coordinate operation of the first and second modules to prevent the interference from causing the second module to function incorrectly.

Abstract: A method(s) of testing AN/ULQ-21 (Hydra) Circuit Card Assembly(ies) (CCAs), which involve providing software to perform automated tests on Hydra CCAs that make up the Hydra Countermeasures Set and employ commercial off the shelf equipment (such as signal generators, spectrum analyzer, Data Acquisition Device(s), oscillators, etc. as applicable depending on the test and CCA being evaluated).

Abstract: According to an embodiment of the present invention jamming energy is allocated to a plurality of emitters based on a three-dimensional (3-D) emitter geolocation technique that determines the geolocation of radio frequency (RF) emitters based on energy or received signal strength (RSS) and/or time differences of arrival (TDOAs) of transmitted signals. The three-dimensional (3-D) emitter geolocations are used to rank emitters of interest according to distance and available radio frequency (RF) jamming energy is allocated to the emitters in rank order. The techniques may be employed with small unmanned air vehicles (UAV), and obtains efficient use of jamming energy when applied to radio frequency (RF) emitters of interest.

Abstract: The present disclosure presents techniques for determining when to obscure an accelerometer signal from an accelerometer of a mobile device. The techniques include determining whether a user has been prompted to provide sensitive input data to the mobile device using an input device of the mobile device. When the user has been prompted to provide sensitive input data, the technique includes obscuring a portion of an accelerometer signal outputted from an accelerometer, and receiving the sensitive input data from the user at the input device while the accelerometer signal is obscured. In some embodiments, the accelerometer signal can be obscured by (i) switching the accelerometer 216 off, (ii) inserting a random noise signal into the accelerometer signal, (iii) masking the low-order bits of the accelerometer signal, (iv) passing the accelerometer signal through a filter, (v) actuating a vibrator of the mobile device, and/or (vi) otherwise degrading the accelerometer signal.

Abstract: The protection device (1) avoids accidental or fraudulent intrusion of at least one contactless communication object (3) with a smart circuit (31, 32) storing sensitive information or information giving access to services, the electronic circuit of the protected object remaining unchanged, notably by means (13) for receiving radio signals (S22) in a range of frequencies of the order of one megahertz to a few tens of megahertz, the received radio signals generating the operating power for enabling a circuit (11) generating a scrambling signal to be emitted by emission means (14) of the protection device as scrambling radio waves (S21) and switching means (12) validating or invalidating the operation of the generator of the scrambling signal of the protection device.

Abstract: An apparatus and method for setting and releasing a flight mode in a mobile terminal are provided in which a user of the mobile terminal is informed that the flight mode should be set or released before the flight mode is set or released in order to allow the user to determine whether to set or release the flight mode.

Abstract: Techniques for detecting wireless devices that are signaling in high proximity to a convoy or other operation and preventing messages from reaching the wireless devices. One class of the techniques uses surgical jamming methodologies that minimize power consumption and collateral interference, while being maximally inconspicuous; another class uses baiting beacons to prevent the messages from reaching the wireless devices. Still another class of techniques denies wireless devices access to a wireless network. An exemplary embodiment applies the techniques to wireless devices and beacons in a GSM network.

Abstract: A technique for disrupting the operation of a target containing nonlinear electronic devices generally includes generating a high frequency signal; generating a low frequency signal; modulating the high frequency signal with the low frequency signal; and emitting the modulated high frequency signal at the target.

Abstract: A wideband intelligent jamming control apparatus and method is provided, which efficiently control an unauthorized threat signal. The wideband intelligent jamming control apparatus includes a signal detection terminal for detecting and analyzing wideband frequency signals in real time, and transmitting a jamming command and jamming signal specification information if a corresponding wideband frequency signal is determined to be an unauthorized threat signal. A jamming terminal receives the jamming command and the jamming signal specification information, and generates and emits a jamming signal based on the jamming command and the jamming signal specification information. The signal detection terminal and the jamming terminal may be configured to be physically separated from each other and may be controlled on a network.

Abstract: A mobile terminal is disclosed which includes a near field or RFID tag (41). The mobile terminal (1) communicates with the mobile telecommunications network and is authenticated with that network using the SIM (15). The mobile terminal (1) is operable to obtain security data from the user thereof, such as a PIN or biometric data, or the mobile terminal (1) incorporates a sensor such as a light sensor, pressure sensor, heat sensor, skin resistant sensor or inertial sensor. The input device or sensor is used to confirm the identity of the user or to evaluate whether the user wishes to use the near field tag (41) to make a payment or obtain entry to a building (for example). Data from the sensor is passed to the SIM (15), which issues a command enabling the near field tag (41), via link (43). The near field tag (41) may then be read by a reader.

Abstract: Methods and apparatuses for minimizing co-channel interference in communications systems are disclosed. A method in accordance with the present invention comprises shifting a characteristic of the first signal with respect to a like characteristic of the second signal to mitigate co-channel interference, and transmitting the first signal and the second signal over different channels of the communication system.

Abstract: A mobile-communication signal-jamming assembly includes a first portion shaped to fit within a power port of a vehicle and a second portion that at least partially extends from the power port. The assembly includes at least one engagement member that has a retracted position and an extended position that extends outwardly from the first portion and places the engagement member in a coupling arrangement with a portion of the power port of the vehicle. The assembly also includes a locking mechanism operable to selectively move the at least one engagement member from the retracted position to the extended position and a transmitter operable to broadcast radio frequency signals that interfere with at least one of a wireless transmission mode and a wireless reception mode of a mobile communication device proximate to the mobile-communication signal-jamming assembly.

Abstract: A system is disclosed to identify authorized EO devices and unauthorized EO devices within a scene. The system hampers the operation of the unauthorized EO devices detected within the scene.

Abstract: In one example, a method and system for selecting a channel for use with a mobile communication device is described. A shared frequency band shared between a first wireless communications protocol and a second wireless communications protocol is scanned to identify an active second wireless communications protocol channel. One or more first wireless communications protocol channels corresponding to the active second wireless communications protocol channel are removed from a list of selectable channels. A first wireless communications protocol channel is selected from the list of selectable channels.

Abstract: A method to minimize influence of interference sources by control of a signal to noise/interference ratio of a wideband antenna system connected to an electronic system. The wideband antenna system includes at least one array of at least two antenna elements/sub arrays. The signal to noise/interference ratio control includes establishing of cancellation directions for interfering frequencies in the antenna pattern in the direction of interference sources. The wideband antenna system is operational over a system bandwidth and operates with an instantaneous bandwidth. Estimation of interference source parameters is performed in an evaluation process. A wideband antenna system implementing the method.

Abstract: A method and apparatus for mitigating interference in a satellite signal receiver is described. The satellite signal receiver receives satellite signals from a plurality of satellites. In one example, a control signal is transmitted to the satellite signal receiver upon occurrence of data transmission from a wireless transceiver operating in proximity to the satellite signal receiver. Signal integration within the satellite signal receiver is gated in response to the control signal. In another example, one or more values of satellite signal samples are selected from a plurality of possible values. Signal integration within the satellite signal receiver is gated in response to a percentage of satellite signal samples taken over a predefined period exceeding a predefined threshold. In yet another example, a gain setting of an automatic gain control circuit within the satellite signal receiver is adjusted in response to detection of interference.

Abstract: One or more femto cell access points (FAPs) are employed to facilitate provisioning of security. A signal indicative of an intrusion in an area associated with an FAP can be received, and, based on receiving the signal, an identifier associated with a device in a range of the FAP can be determined. One or more frequencies in the range of the femto cell access point can be jammed, an attachment attempt emitted from the device in response to jamming the frequencies can be detected, and a telephone number of the device can be identified based, at least, on detecting the attachment attempt from the device. Warnings can also be sent to the device and/or tracking of the device can be performed.

Abstract: An electronic camera comprises a wireless communication unit that performs wireless communication with a computer or a printer, and a power save mode changeover unit that changes over a power save mode to either an ON or an OFF state according to the operational state of the electronic camera, if the power save mode is changed over to ON by the power save mode changeover unit, the wireless communication unit stops its operation when radio waves are not being transmitted, and if the power save mode is changed over to OFF, the wireless communication unit operates in a standby state when radio waves are not being transmitted.

Abstract: An integrated circuit for achieving power reduction in a transceiver may include a jammer detector that determines an interference level corresponding to a received signal, and a transmit power detector that determines a required transmit power level for a transmitted signal. The integrated circuit may also include at least one of the following: a process monitor that determines process corners of components within the receiver and/or the transmitter, and a temperature monitor that determines a temperature of the receiver and/or the transmitter. The integrated circuit may also include a state machine. The state machine may transition the receiver from a high linearity mode to a low linearity mode if a set of operating conditions is satisfied. Similarly, the state machine may transition the transmitter from a high power mode to a low power mode if a set of operating conditions is satisfied.

Abstract: 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 on a radiocommunication channel. The method includes a final detection phase, having the following steps: detection of verification of the following final condition: there are N radiocommunication channels on which the radiocommunication circuit cannot be synchronized despite detection of a power level normally sufficient for being synchronized, where N>2; and if the final condition is verified, generation of a final scrambling signal with a probability of scrambling equal to 100%. The method also includes at least one intermediate detection phase, having the following steps: detection of verification of at least one intermediate condition; and if the at least one intermediate condition is verified, generation of an intermediate scrambling signal with a probability of scrambling of less than 100%.

Abstract: A method and apparatus for detecting a jammer comprising sampling an input signal; downconverting and sampling the input signal to generate a sampled downconverted (SD) input signal; comparing the sampled input signal to a wideband threshold THWB, and comparing the SD input signal to a narrowband threshold THNB; generating a wideband (WB) interrupt signal based on the comparison to the THWB, and generating a narrowband (NB) interrupt signal based on the comparison to the THNB; and generating a composite interrupt signal based on at least one of WB interrupt signal and NB interrupt signal. In one aspect, the apparatus comprises a wideband jammer detector for generating a WB interrupt signal to indicate a wideband jammer; a narrowband jammer detector for generating a NB interrupt signal to indicate a narrowband jammer; and interrupt logic for generating a composite interrupt signal based on one of WB interrupt signal and NB interrupt signal.

Abstract: A system enhances communications security in a wireless local area network (WLAN). The system includes a multiple antenna array arranged to transmit and receive signals; and a transmitter/receiver coupled to the multiple antenna array and configured to transmit and receive the signals. The transmitter/receiver includes a beamformer, which in turn includes a signal processor component that generates a signal beam for transmission to an intended user, and a blinding component that computes one or more blinding beams using only channel state information of the intended user. The blinding beams have a zero inter-user interference condition with the signal beam.

Abstract: A communications system includes a satellite hub, a remote satellite terminal, and a satellite configured to provide communications therebetween. The remote terminal includes a controller that functions as an enforcement mechanism when adjusting antenna polarization on the remote satellite terminal to facilitate communications with the satellite. The satellite transmits an acquisition signal at a first satellite polarization angle, and a jamming signal at a second satellite polarization angle different from the first satellite polarization angle. If the polarization is not set correctly, then the jamming signal is not filtered by a narrow width null of the receive gain pattern at the remote satellite terminal, and the controller inhibits transmission. This forces an installer to correctly set the polarization of the antenna at the remote satellite terminal.

Abstract: An RFID tag and a method of operating the RFID tag are provided. The RFID tag comprises a memory block that stores at least one predetermined authorization code associated with an RFID reader. In this method, according to the predetermined authorization code and an approval request transmitted from the RFID reader, it is determined by the RFID tag whether the RFID reader is authenticated. When the RFID reader is not authenticated, the RFID tag is controlled to not respond to a subsequent request transmitted from the RFID reader. As a result, the risk that data in the RFID tag may be illegally acquired by an unauthorized RFID reader is reduced.

Abstract: A device and method for jamming wireless communication devices where the jamming signal is derived from the downlink signal of the base station and processed with a time delay sufficient length as to prevent the base station receiver from correctly processing the responding uplink signal from the targeted wireless communications device. Such wireless communication jamming device can be used by law enforcement and authorized government entities to block the operation of wireless communication devices such as cell phones within a target area.

Abstract: Telecommunication service is regulated in a confined area in which telecommunication is restricted. Regulation includes control of wireless resources and access thereto, and monitoring wireless activity and locating sources thereof within the confined area. Regulation can be accomplished through networked femtocell access points and distributed antenna systems. Control of wireless resources is accomplished through selective jamming within the confined area; selective jamming can be updated based on performance metrics of telecommunication service. Configurable lists that authorize mobile device(s) to consume wireless service within the confined area control access to wireless resources. Access can be granted, or denied statically or dynamically. Monitoring of wireless activity within the confined area includes tracking and recordation of signaling or traffic activity.

Abstract: A method and system for a radio frequency barrier in a wireless communication network includes a barrier defined for protecting a space within the wireless communication network. A plurality of antennas is located along the barrier. A radio provides radio frequency signals to transmit from the antennas to interfere with radio frequency communications impinging on the barrier. The interfering radio frequency signals can provide same channel and adjacent channel interference.

Abstract: System and method for importing service objects to a host computing environment. In one embodiment, a method includes the steps of executing a mobile agent object, (called a delivery-mobile agent object) in a mobile-agent runtime environment in a host computing environment and then installing a service object to be executable in the mobile-agent runtime environment.

Abstract: Techniques for generating an interloping beacon which can control the behavior of a target wireless device on a CDMA frequency channel without noticeably altering the behavior of non-target wireless devices which share the frequency channel of the target wireless device's live beacon. The interloping beacon is an override beacon which overrides the live beacon's pilot channel and a control message on a code channel on which control messages may be addressed to the target wireless device. The override beacon provides the overriding pilot and the overriding control message only as long as is required for the target wireless device to respond to the overriding control message. The period of time during which the overriding pilot and the overriding control message are generated for the override beacon is so short that only the target wireless device responds without noticeable effect on collateral wireless devices.

Abstract: Cognitive anti-jam receiver systems and associated methods are provided. The systems and methods may include a signal analysis module that processes a baseband signal to determine one or more signal characteristics of the baseband signal, the baseband signal comprising at least a desired signal; a cognitive decision unit that receives the one or more signal characteristics from the signal analysis module, and generates at least one first adaptive parameter; and at least one anti-jam processing module that processes the baseband signal to generate a modified signal that reduces an impact of at least one jammer signal on a quality of reception of the desired signal from the baseband signal, where processing by the at least one anti-jam processing module may be based at least in part on the received at least one first adaptive parameter from the cognitive decision unit.

Abstract: A method is provided for updating a position of a mobile device coupled to a wireless communication network via one of a plurality of base stations. The method comprising the following steps. A position of the mobile device is determined. The mobile device then waits for a predefined trigger notification before determining an updated position of the mobile device. The predefined trigger notification is generated in response to a motion trigger. A device configured to implement the method as well as a computer readable medium comprising instructions to implement the method are also provided.

Abstract: A system and method for suppressing radio frequency (“RF”) transmissions includes a transmitter for transmitting electronic signals that suppresses (e.g., prevents, disrupts, jams, interferes with or otherwise disables) RF transmissions. Some embodiments of the invention include a transmitter that suppresses one or more signals transmitted from a target transmitter in an RF transmission system to a target receiver in a wireless device operating in the RF transmission system to prevent, disrupt, jam, interfere with or otherwise disable an RF transmission between the target transmitter and the target receiver in the wireless device (i.e., target wireless device). These systems and methods may be used to interrupt communication, command and control of non-friendly combatant. These systems and methods may also be used to suppress RF transmissions to prevent the detonation of improvised explosive devices, or IEDs.

Abstract: An apparatus for sensing and classifying radio communications is provided. The apparatus includes one or more sensor units configured to detect radio frequency signals, a signal classifier configured to classify the detected radio frequency signals into a classification, the classification including at least one known signal type and an unknown signal type, a clustering learning algorithm capable of finding clusters of common signals among the previously seen unknown signals. The system is then further configured to use these clusters to retrain the signal classifier to recognize these signals as a new signal type.

Abstract: A countermeasure device for directing a mobile tracking device away from an asset is provided. The countermeasure device includes a continuous wave laser source whose output is directed at a seeker head of the mobile tracking device. The countermeasure device causes the generation of localized sources within the mobile tracking device and confuses the mobile tracking device as to the true location of the asset.

Abstract: Systems and methods according to aspects of the invention verify requests for information over a network. Computing devices communicating over a network transmit numerous signals with various types of information including spatial information, temporal information, device-specific information, and transmission specific information. This information may be used to generate statistical records of valid request for information. Various combinations of these signals may be used to determine whether a request for information is a valid request based on the statistical records associated with the signals. Where a request for information has been verified, the system and method may provide the information. Where the request for information has not been verified, the system and method may deny the request for information. Thus the system and method may be used to prevent and block scraping and spamming attacks.

Abstract: An information processing terminal system includes an information processing terminal (6); and a transmitting and receiving unit (5) which is attached to the information processing terminal. The transmitting and receiving unit (5) converts a reception wave signal from a network into a reception analog baseband signal. The transmitting and receiving unit (5) converts the reception analog baseband signal into a reception digital baseband signal in synchronization with a clock. The information processing terminal (6) converts the reception digital baseband signal into a reception data in synchronization with a clock, and a transmission data into a transmission digital baseband signal in synchronization with the clock. The transmitting and receiving unit (5) converts the transmission digital baseband signal into a transmission analog baseband signal in synchronization with the clock.

Abstract: A method is provided for selectively, dynamically and adaptively jamming the third-party radio communications that are external to a radio communication network to be protected, which optimizes the effectiveness of the jamming of P predefined areas or positions in a network of transmitters, and which uses closed-loop control to limit fratricidal effects on certain platforms having telecommunication transmitters/receivers to be preserved.

Abstract: Techniques for generating an interloping beacon which can control the behavior of a target wireless device on a CDMA frequency channel without noticeably altering the behavior of non-target wireless devices which share the frequency channel of the target wireless device's live beacon. The interloping beacon is an override beacon which overrides the live beacon's pilot channel and a control message on a code channel on which control messages may be addressed to the target wireless device. The override beacon provides the overriding pilot and the overriding control message only as long as is required for the target wireless device to respond to the overriding control message. The period of time during which the overriding pilot and the overriding control message are generated for the override beacon is so short that only the target wireless device responds without noticeable effect on collateral wireless devices.

Abstract: The present invention has application to countering IEDs which are triggered remotely through a RF signal directed at, or the same operating environment as, receiver components embedded in, or part of, commercially manufactured cell phones or remote control devices. The invention exploits those situations where the underlying device (i.e., a commercial cell phone) is designed to operate in an environment where noise is characterized by an additive Gaussian noise model. The invention exploits the optimization of the matched filter for Gaussian noise by introducing a specific non-Gaussian noise. Further, the invention is directed to a family of jamming waveforms which exhibit increased effectiveness against a variety of digital and analog communications systems.

Abstract: A method and system are presented for restricting the use of a portable electronic device by a driver who is operating a vehicle. A body area network (BAN) signal is sent from a vehicle device in the vehicle in close proximity to the driver. The BAN signal is transmitted using the driver's biological body as a signal transmission path. The portable electronic device includes a receiver configured to detect the BAN signal when the device is in close proximity to the driver. The portable electronic device is further configured to disable or restrict at least one function in response to detection of the BAN signal, thereby preventing or restricting use of the portable electronic device when the driver is seated in and operating the vehicle.

Abstract: Techniques are disclosed for protecting communication of an NFC-enabled device by generating one or more blocking signals during an NFC data exchange. The blocking signal(s) can include a similar carrier frequency, modulation type, and/or modulation rate an NFC signal, thereby effectively masking the NFC signal. Furthermore, the blocking signal(s) can have a varying amplitude and/or length, which can further mask when an NFC signal is transmitted.

Abstract: An information processing terminal system includes an information processing terminal (6); and a transmitting and receiving unit (5) which is attached to the information processing terminal. The transmitting and receiving unit (5) converts a reception wave signal from a network into a reception analog baseband signal. The transmitting and receiving unit (5) converts the reception analog baseband signal into a reception digital baseband signal in synchronization with a clock. The information processing terminal (6) converts the reception digital baseband signal into a reception data in synchronization with a clock, and a transmission data into a transmission digital baseband signal in synchronization with the clock. The transmitting and receiving unit (5) converts the transmission digital baseband signal into a transmission analog baseband signal in synchronization with the clock.

Abstract: Systems and methods provide for the selective prevention of data transfer from a medical device to allow the patient to have privacy when desired. These systems and methods provide medical devices that can be instructed to stop recording data and/or transmitting data to external devices and systems. These systems and methods also provide external repeater devices that can be instructed to stop recording data being received, stop forwarding data that is being or has already been received, and/or to stop soliciting data from the medical device. These systems and methods also provide for a blocking device that may be separate from the medical device and repeater to prevent data transfer such as by stopping the recording or transmission of data. The blocking device may be configured to provide a jamming signal to prevent data transmissions from being successfully communicated between the medical device and the repeater.

Abstract: A system includes a generator and at least one device. The generator includes a waveform oscillator and a blanking pulse generator. Each device includes a transmit antenna, a receive antenna, an antenna unit, a mixer and a detector. The antenna unit includes a receiver coupled to the receive antenna, an amplifier coupled to the receiver and a transmitter coupled to the transmit antenna and the blanking pulse generator. The mixer has inputs coupled to the amplifier and the waveform oscillator. The detector is coupled to the mixer.

Abstract: A method and apparatus for provisioning a communication device is disclosed. An apparatus that incorporates teachings of the present disclosure may include, for example, a communication device having a controller element that establishes wireless communication with a base unit operating according to a short-range cordless phone communication protocol, and receives from the base unit provisioning information that enables a communication device to establish wireless communications with an access point operating according to a wireless fidelity (WiFi) communications protocol. Additional embodiments are disclosed.