Entries |
Document | Title | Date |
20080207113 | Noise-Generating Device and Method - The invention relates to the field of devices intended to generate a noise of high amplitude having specific spectral characteristics. It concerns a transmission device mainly comprising a transducer, means for synthesizing a digital noise sequence x′(n) and power sources. According to the invention, the device also comprises means such that according to the value, at each time t, of the synthesized noise sequence, the transducer is supplied by one or more noise sources placed in series, the overall voltage reflecting the value of the digital noise sequence. The transition times between two supply values are synchronous with the basic clock of means which synthesize x′(n). The invention also relates to a method for iteratively synthesizing, under spectral constraint, a noise having a power spectral density corresponding to a given template. The invention applies in particular to the submarine acoustic noise generators on board small-size autonomous craft. It can also apply to the production of scramblers in mobile telephony. | 08-28-2008 |
20080220715 | Controlling Use Of Devices In Large Restricted Areas - A usage specification device is used to limit the use of information signals (audio, image, data) and to limit the output of disturbing signals (speaker, flash, light, RF transmission) in several devices in a large restricted area. For example, the usage specification device may transmit a certain type of control signal to disable image capture by camera-equipped portable/mobile devices, or it may transmit other types of control signals to disable audio capture or data capture by such devices. Similarly, the specification device may transmit a certain type of control signal to reduce the speaker volume on portable/mobile devices, or it may transmit other types of control signals to disable the flash, or minimize the intensity of light emitted by the display or restrict the transmission of RF signals from such devices. Due to such features, only undesirable features of portable/mobile devices may be prevented in restricted areas, while permitting other uses. According to another aspect, the device can be scanned by an external scanner for a built-in code, with the code indicating the specific type of capabilities the device has and the specific type of usage controls supported by the device. Accordingly, the owner of a premises may first scan a device to determine the specific capabilities and control features supported before permitting the device to be carried into the premises. | 09-11-2008 |
20080254737 | Ionizing Communication Disruptor Unit - An apparatus includes a voltage generator and a superstructure. The voltage generator includes a conductive base, an insulating spacer and a conductive top. The superstructure includes a platform and an antenna system. The voltage generator provides a voltage difference between the conductive base and the conductive top that is greater than 10,000 volts. | 10-16-2008 |
20080254738 | System And Method For Suppressing Radio Frequency Transmissions - 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. | 10-16-2008 |
20080261509 | Distributed Wireless Communications for Tactical Network Dominance - Ad-hoc networks employing cooperative signal processing are configured for detecting, identifying, and visualizing radio communication networks used by an adversary, such as enemy combatants or criminals. These networks are further configured for performing a non-passive tactical response to an adversary's communication capabilities. Such ad-hoc networks are particularly useful for identifying radio communication resources, establishing radio links, and subverting an adversary's communication capabilities in environments lacking available communication infrastructure, including battlefield environments, and locations where communication infrastructure is non-existent or has been compromised by natural disasters or terrorists attacks. | 10-23-2008 |
20080268766 | PREVENTING MOBILE COMMUNICATIONS IN A QUIET ZONE USING ARTIFICIALLY IMPOSED SIGNAL TIME DELAY - Terminating or otherwise preventing communications in a predefined quiet zone by imposing a time delay. In one embodiment an existing call is terminated during a transition between two wireless access points by imposing a time delay on communications through one of the access points. The time delayed signal is interpreted as noise and causes a base station to drop the call if the noise causes the signal strength from the other access point to fall below a threshold. Within a quiet zone, a signal time delay prevents a client device from responding to a base station connection instruction, which causes the base station to believe that the client device is out of range of a quiet zone access point. The time delay may be imposed by an optical fiber spool between the quiet zone access point and the base station, or other delay mechanism. One embodiment is aboard a vessel. | 10-30-2008 |
20080268767 | APPARATUS AND METHOD FOR SELECTIVE INTERFERING WITH WIRELESS COMMUNICATIONS DEVICES - An apparatus operable to disable operation of wireless communications devices, for use within a vehicle, includes a drive circuit coupled to at least one active antenna element to produce interference within at least one wireless communications band of frequencies in response to movement of a vehicle above a defined threshold. The drive circuit being selectively disabled while the vehicle is moving above the defined threshold. The interference may take the form of a bare carrier wave, or may take the form of noise, and is transmitted at sufficient power to interfere with communication between the wireless communications device and a destination device. | 10-30-2008 |
20080268768 | APPARATUS AND METHOD FOR INTERFERING WITH WIRELESS COMMUNICATIONS DEVICES POSITIONED IN A VOLUME OCCUPIED BY A HUMAN DRIVER - An apparatus operable to disable operation of driver side wireless communications devices, for use within a vehicle, includes a drive circuit coupled to at least one active antenna element to produce interference within at least one wireless communications band of frequencies in response to movement of a vehicle above a defined threshold. The active antenna element being mounted proximate a driver side seatback and/or visor. The interference may take the form of a bare carrier wave, or may take the form of noise, and is transmitted at sufficient power to interfere with communication between the driver side wireless communications device and a destination device. | 10-30-2008 |
20080268769 | APPARATUS AND METHOD FOR INTERFERING WITH WIRELESS COMMUNICATIONS DEVICES IN RESPONSE TO TRANSMISSION POWER DETECTION - An apparatus operable to disable operation of wireless communications devices, for use within a vehicle, includes a drive circuit coupled to at least one active antenna element to produce interference within at least one wireless communications band of frequencies in response to the wireless communications device transmitting at a transmission power above a defined power threshold for a defined amount of time. The interference may take the form of a bare carrier wave, or may take the form of noise, and is transmitted at sufficient power to interfere with communication between the wireless communications device and a destination device. | 10-30-2008 |
20080293352 | IDENTIFICATION OF SELF JAMMER TONE FOR SUPPRESSION THEREOF IN RFID SYSTEMS OR THE LIKE - Briefly, in accordance with one or more embodiments, a self jammer may be detected and suppressed from a received signal by embedding a pilot tone in the transmitted signal and then detecting the pilot tone in the received signal. Detection of the pilot tone in the received signal indicates the presence of a self jammer. A phase shifted and attenuated version of the transmitted signal may be combined with the received signal to suppress and/or cancel the self jammer signal from the received signal. | 11-27-2008 |
20080293353 | Cognitive radio methodology, physical layer policies and machine learning - In a method of cognitive communication for non-interfering transmission, wherein the improvement comprises the step of conducting radio scene analysis to find not just the spectrum holes or White spaces; but also to use the signal classification, machine learning and prediction information to learn more things about the existing signals and its underlying protocols, to find the Gray space, hence utilizing the signal space, consisting of space, time, frequency (spectrum), code and location more efficiently. | 11-27-2008 |
20080305735 | MOBILE TELEPHONE JAMMING SYSTEM FOR AUTOMOBILES - A mobile telephone jamming system for automobiles includes circuitry for jamming mobile telephone communications and a mechanism for an authorized person to selectively turn off the jamming. It may also include one or more switches or sensors, such as the ignition switch, a speed sensor, or an on-off switch to selectively control when the mobile telephone jamming system interferes with mobile telephone calls. | 12-11-2008 |
20090047897 | Jamming Device For Mobile Communication - The invention refers to a method for a screening device and a screening device ( | 02-19-2009 |
20090061759 | REGENERATIVE JAMMER WITH MULTIPLE JAMMING ALGORITHMS - A jammer for generating and transmitting RF broadband jamming signals for jamming one or more local RF receivers. The jammer includes a broadband antenna unit for receiving broadband RF jammer received signals from local transmitters and for transmission of regenerated broadband RF jamming signals to the local receivers. The jammer uses a plurality of jamming algorithms including a regeneration algorithm and one or more alteration algorithms that alter the regenerated signals whereby the altered regenerated signals are asynchronous with respect to ones of, or all of, the jammer received signals. The alteration algorithms include a chopping algorithm and an FM modulation algorithm. | 03-05-2009 |
20090081943 | SYSTEM AND METHOD FOR NEAR FIELD COMMUNICATIONS HAVING LOCAL SECURITY - A system and method for near field communications is provided. The system includes a near field generator configured to generate a near field detectable signal comprising information, a near field detector configured to receive the near field detectable signal and output the information, and an Electro-Magnetic (EM) Radio Frequency (RF) jamming transmitter configured to radiate an EM RF jamming signal, in order to jam reception of EM RF signals in the vicinity of at least one of the near field generator and near field detector. | 03-26-2009 |
20090093211 | DEVICE FOR PREVENTING EAVESDROPPING THROUGH SPEAKER - Provided is a device for preventing eavesdropping through a speaker. More particularly, a device for preventing eavesdropping by transmitting a jamming signal through a speaker common signal line is provided, the device including: a jamming signal generator for generating a jamming signal comprising a noise signal; an amplifier for amplifying the jamming signal; and a transformer for receiving the amplified jamming signal from the amplifier and outputting the amplified jamming signal to a speaker common signal line. The device may transmit a jamming signal in an audible frequency band to the speaker common signal line, thereby rendering conversations unrecognizable to eavesdroppers when an electrical signal induced from a speaker is detected through the speaker common signal line. | 04-09-2009 |
20090104869 | JAMMING DETECTOR AND JAMMING DETECTING METHOD - A jamming detector and jamming detecting method are disclosed. In accordance with the present invention, distribution of a received signal is compared with a reference distribution of a specific signal model. Deviation of the signal distribution from the reference distribution can be obtained according to the comparison results. The existence of jamming is determined according to the deviation. If the signal distribution significantly deviates from the reference distribution, it means that jamming exists. An anti-jamming circuit or algorithm can be activated only when jamming is detected, thereby power consumption is reduced. | 04-23-2009 |
20090156116 | Method and apparatus for heavy-tailed waveform generation used for communication disruption - 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. | 06-18-2009 |
20090170422 | METHOD OF CONTROLLING WIRELESS COMMUNICATIONS - An exemplary method of controlling wireless communications includes generating a control signal that indicates a desired transmission timing of a plurality of interference signals from a respective plurality of interference devices. The control signal is transmitted to the plurality of interference devices. | 07-02-2009 |
20090170423 | WIRELESS TELECOMMUNICATIONS SIGNAL INHIBITION - Wireless telecommunications is inhibited within a limited region by generating a noise signal within a frequency range of the wireless telecommunications and broadcasting the noise signal into the limited region. A system for inhibiting wireless communications includes a radio frequency noise generator generating a noise signal within a frequency range of the wireless telecommunication. At least one antenna broadcasts the noise signal into the region. Control logic initiates or suspends broadcasting of the noise signal based on at least one control input. | 07-02-2009 |
20090209196 | Methods of Suppressing GSM Wireless Device Threats in Dynamic or Wide Area Static Environments Using Minimal Power and Collateral Interference - 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. | 08-20-2009 |
20090215385 | SECURITY FOR WIRELESS COMMUNICATION - A mobile terminal is disclosed which includes a near field or RF ID tag ( | 08-27-2009 |
20090215386 | Connection Inhibition Apparatus and Method - The apparatus transmits in a first zone, for example, an aircraft, a masking signal which masks transmissions from a second zone outside of the first. By doing this a mobile cellular telephone is inhibited from connecting or attempting to connect to base-stations on the ground. A hole in the masking signal spectrum may be provided to enable connection to a base-station within the aircraft. Alternatively, a base-station within the aircraft may be arranged to transmit at a power level greater than the masking signal. | 08-27-2009 |
20090215387 | IN-VEHICLE CELLULAR DEVICE BLOCKER TO RESTRICT CELLULAR USE FOR OPERATOR - In general, in one aspect, the disclosure describes a narrow beam jammer to generate jamming signals for the regional cellular frequency ranges for use in vehicles. The narrow beam is directed at the location of the driver so that jamming and detection of communications is limited thereto. The initiation of the jammer may also be based on other parameters such as vehicle speed and Bluetooth synchronization. Other embodiments are described and claimed. | 08-27-2009 |
20090258592 | Radio Frequency Identification Tag and Operating Method Thereof - The invention provides a radio frequency identification (RFID) tag. The RFID tag includes a receiving module, a judging module, and a jamming module. The judging module includes a first judging unit and a second judging unit. When a jamming function of the RFID tag is activated, the first judging unit judges whether a request signal received by the receiving module contains a reading command. If a judgment result of the judging module is positive, the second judging unit then judges whether an authorization code of the reading command is valid. If either the judgment result of the first judging unit or the second judging unit is negative, the judging module controls the jamming module to generate a radio frequency (RF) jamming signal. | 10-15-2009 |
20090275281 | Mobile phone detection and interruption system and method - A mobile phone detection and interruption system and method are provided. The system is operative to transmit different blocking signals capable of degrading or blocking mobile phone communication in a vehicle responsive to a velocity of the vehicle reaching different pre-configured velocity levels. | 11-05-2009 |
20090298415 | METHODS AND APPARATUS FOR POWER REDUCTION IN A TRANSCEIVER - 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. | 12-03-2009 |
20090325478 | MOBILE JAMMING ATTACK METHOD IN WIRELESS SENSOR NETWORK AND METHOD DEFENDING THE SAME - Mobile jamming attack method in wireless sensor network and method defending the same The present invention relates to a mobile jamming attack method applied in a wireless sensor network (WSN) and method defending the same. The mobile jamming attack method is a power exhaustion denial-of-service attack, possesses mobility and self-learning capability and is unable to be defended with existing defending scheme due to its attack to the routing layer of the WSN; the mobile jamming defending method employs multi-topologies scheme to defend the mobile jamming attack so that the affected area is reduced, the base station can still receive reply packets under the attack, and the jammed area can be roughly located and the track of the mobile jammer can be traced. | 12-31-2009 |
20100015910 | Counter-Intelligence Signal Enabled Communication Device - According to one embodiment, a radio has a memory for the storage of a number of records. Each record has a number of operating parameters that are used by a controller subsystem to control the radio's operation. The controller subsystem is operable to communicate with a first communication device using a first electro-magnetic signal while communicating with a second communication device using a second electromagnetic signal configured according to one of the records. The first electro-magnetic signal uses a portion of the information transfer capacity of the radio and is devoid of a counter-intelligence signal. The second electro-magnetic signal comprises a counter-intelligence signal that is operable to eavesdrop or disrupt communication of the second communication device. | 01-21-2010 |
20100022181 | HIGH EFFICIENCY & HIGH POWER PATCH ANTENNA AND METHOD OF USING - A patch antenna system and method comprising a base extending in a first plane; at least one patch mounted in a plane substantially parallel to the first plane; spaced from the base by at least one metallic post such that between the base and patch is substantially only gaseous fluid (which may be air). At least one power source may be operatively connected to the at least one patch for generation of electromagnetic waves at a center frequency of approximately 5.8 Gigahertz. The method of neutralizing unattended microwave devices comprises connecting a power source to a patch antenna and operating the patch antenna at a frequency in the range of approximately 3.89 to of 5.85 Gigahertz in the vicinity of a suspected unattended microwave device used to activate an explosive device to thereby jam any communication signal to the unattended microwave device and prevent the activation. | 01-28-2010 |
20100035539 | WIRELESS COMMUNICATION-IMPROVING SHEET MEMBER, WIRELESS IC TAG, ANTENNA, AND WIRELESS COMMUNICATION SYSTEM USING THE SAME - In one embodiment of the present invention, an object of the invention is to provide a wireless communication-improving sheet member capable of increasing a possible communication distance of an IC tag for wireless communication, a wireless IC tag, an antenna, and a wireless communication system. A first spacer includes an arrangement face on which on which the wireless IC tag is disposed without a wired connection, and an auxiliary antenna is disposed on the first spacer on an opposite side to the arrangement face, the auxiliary antenna resonating with electromagnetic waves used in the wireless communication. The auxiliary antenna includes a first conductor layer as a resonant layer and a second spacer. The second spacer is disposed on an opposite side to the first spacer with the first conductor layer interposed therebetween. A discontinuous area is disposed in the first conductor layer of the auxiliary antenna. Thus, it is possible to not only eliminate influence of a communication-jamming member, but also increase received electrical power of a wireless IC tag (antenna), and ensure a long communication distance. | 02-11-2010 |
20100056040 | Adaptive Crosspole Technique - An RF signal processing device which includes a countermeasure set connected to the processing device. The RF signal processing device shifts an incoming RF signal by ninety degrees and combines the phase shifted RF signal with RF jamming signals from a jammer. The processing device next transmits the RF signal including the RF jamming signals from the jammer. | 03-04-2010 |
20100062705 | APPARATUS AND METHOD FOR INTERFERENCE-ADAPTIVE COMMUNICATIONS - In embodiments, an adaptive tone erasure technique is applied to orthogonal frequency division multiplexing (OFDM) communications, such as ECMA-368 standard ultra-wideband (UWB) communications. A transmitter obtains jammed sub-carrier information and calculates an erasure mask. The jammed sub-carriers are nulled before transmitting to a receiver. In accordance with the erasure mask, bits falling on the jammed sub-carriers are replaced by erasure bits before interleaving, keeping the interleaver block size constant notwithstanding variations in the number of the jammed sub-carriers. The receiver also obtains the jammed sub-carrier information and the erasure mask. After the receiver deinterleaves the constant size blocks, it decodes the data without the erasure bits. The transmitter may detect the jammed sub-carriers itself, or obtain the information from the receiver. The receiver similarly may detect the jammed sub-carriers itself, or obtain the information from the transmitter. | 03-11-2010 |
20100068988 | SYSTEM AND METHOD FOR COVERTLY DISABLING IMPROVISED EXPLOSIVE DEVICES - A method and system of disabling a remote improvised explosive device (IED) that is triggered by a cell phone. A portable wideband network system, installed in a vehicle, is used to determine operator frequency or frequencies active on a route along which the vehicle will travel. The vehicle includes a wideband transmitter for raising a radio frequency noise floor across all of the active cellular frequencies in a limited area surrounding the portable wideband network system during passage along the route. A notch filter is used by the system for filtering a particular frequency from the noise floor. The power level of the portable wideband network system is increased so that the strongest signal at the particular frequency in the limited area is provided by the portable system's base station. All mobile terminals in the limited area around the vehicle are connected to the portable system and the portable system prevents call completion of any of the connected mobile terminals. | 03-18-2010 |
20100087136 | MOBILE COMMUNICATION CANCELLATION METHOD AND APPARATUS - The invention provides a method and apparatus that can at least limit use of mobile communication devices on passenger mass transit vehicles, planes, off-road vehicles, pieces of heavy equipment or machinery when predetermined conditions related to motion of such vehicles, planes, equipment, machinery or at least one component thereof are met. | 04-08-2010 |
20100087137 | Vehicle safety system - The vehicle safety system selectively deactivates a driver's cellular telephone when the driver is ready to drive his or her vehicle. The vehicle safety system first determines the proximity between the cellular telephone and the driver's seat of the vehicle. An identification tag is mounted on or in the vicinity of the driver's seat. The identification tag is sensed by a sensor to determine proximity. A gear state of the vehicle is then determined and transmitted to a call authorization module associated with the cellular telephone. The sensor for sensing the identification tag is also associated with the call authorization module. The call authorization module selectively deactivates the cellular telephone when the cellular telephone is located within a pre-set range from the driver's seat of the vehicle and the gear state of the vehicle is such that the vehicle may be driven under power. | 04-08-2010 |
20100093270 | SIGNAL TRANSMISSION SURVEILLANCE SYSTEM - A system and method of detecting, processing, and selectively responding to radio frequency transmissions detected by at least one projectile deployed above a geographic area. | 04-15-2010 |
20100112933 | CONTROL DEVICE FOR SHIELDING A ROOM - A control device that shields a room from incoming signals includes a receiving device, an interference device and a transmitting device. By the receiving device transmission signals are received, from which an interference signal is determined in order to interfere with the transmission signal. This interference signal is emitted by way of the transmitting device. | 05-06-2010 |
20100279598 | FILTERING CIRCUIT WITH JAMMER GENERATOR - A filtering circuit with a jammer generator cancels a jammer in wireless signals with little degradation of the signal-to-noise ratio (SNR). The filtering circuit may include a jammer generator which acquires information of period and phase of a sinusoidal jammer signal in a composite input sinusoidal signal, which includes the jammer signal and a desired signal, and outputs a pseudo sine-wave with a period and phase corresponding with the period and phase of the jammer signal acquired, and an adder which outputs a difference between the input and output signals of the jammer generator as the desired signal. | 11-04-2010 |
20100297929 | Prevention against Texting and other Keyboard Operations While Driving - Prevention against some, but not all, users in a vehicle using the keyboard on a device while driving. This can prevent the driver texting while driving, or can prevent the driver entering the destination on a GPS while driving. | 11-25-2010 |
20100297930 | Portable Device with a Vehicle driver Detection - Detection of a user sitting in a driver's seat is used to prevent operation of a specified function of a portable device. For example, the cell phone can be prevented from texting when the user is sitting in the driver's seat. | 11-25-2010 |
20100304661 | SWEEPING MODE OF JAMMING SYSTEM - 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. | 12-02-2010 |
20100323608 | System and method for preventing photography - A method for causing the localized malfunctioning of a digital camera in a specified area; ( | 12-23-2010 |
20110014863 | RADIO OPAQUE CONTAINER FOR COMMUNICATION DEVICES UPON A VEHICLE - A radio opaque container for communication devices upon a vehicle has a bottom joined to four walls, a pivoting lid sealing upon the walls, a connector from the container to a vehicle, a locking mechanism keeping the lid closed, and circuitry between the locking mechanism and the vehicle that engages the locking mechanism only when the vehicle's electrical system is on. In an emergency, the contents within the container remain available to a vehicle operator but the container opens only when vehicle's electrical power has been turned off. The container forms at least one faraday cage around the contents and prevents equipment placed therein from activating and distracting a vehicle operator. In an alternate embodiment, the container includes a shelf therein. | 01-20-2011 |
20110021135 | RF REDIRECTION MODULE AND SYSTEM INCORPORATING THE RF REDIRECTION MODULE - 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. | 01-27-2011 |
20110059688 | SYSTEMS AND METHODS FOR DETECTING AND CONTROLLING TRANSMISSION DEVICES - A method of detecting, controlling and managing transmission of a transmitting device within a facility is disclosed. The method involves transmitting information to the transmission device, detecting a response transmission from the transmission device by a least one transmission detection facility, extracting identification information associated with the transmission device in response to the transmitted information; and determining a location of the transmission device based on the response transmission received by the at least one received transmission detection facility, wherein the response transmissions are sorted by the identification information, determining an allowability of the located transmission device with the set area and interacting and manipulating transmission of the detected transmitting device. | 03-10-2011 |
20110059689 | Using code channel overrides to suppress CDMA wireless devices - 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. | 03-10-2011 |
20110065375 | SYSTEM FOR LIMITING MOBILE DEVICE FUNCTIONALITY IN DESIGNATED ENVIRONMENTS - Apparatuses, systems and methods for limiting mobile device functionality in defined environments. One system includes a detection structure or arrangement for detecting illicit mobile device RF transmissions and/or an operating state in relation to a defined environment, and an interference or disabling structure or arrangement for at least partially disabling the functionality of the mobile device upon detection of an illicit mobile device RF transmission or a particular operating state. For instance, the system may be implemented in an automobile or aircraft cabin to prevent drivers and/or passengers from utilizing at least one functionality of a mobile device (e.g., talking, texting, Internet surfing). | 03-17-2011 |
20110086590 | METHOD AND ASSOCIATED DEVICE FOR PREVENTING UMTS CALL SETUP IN NEARBY MOBILE PHONES - An interference device and method of interfering with signals from a UMTS base station in a particular area are disclosed. The interference device receives a signal from the base station intended for a mobile device to initiate a communication session. The interference device synchronizes to the S-CCPCH and alters the TCFI and/or the data in the data field of the slot so that it is not longer correct. Time-shifted copies of the altered signal are then multiplexed and transmitted to the mobile device as a jamming signal. The jamming signal is received by the mobile device and causes the mobile device to be unable to determine the data of the original signal from the base station. | 04-14-2011 |
20110092151 | FEMTO JAMMING OF MACRO PILOT - A system and methodology that facilitates triggering device scanning and efficient femtocell detection in areas dominated by macro cells is provided. In particular, the system can includes a jamming component that generates a small and measured amount of interference to user equipment or user equipments (UEs) camping on nearby macro carriers. Moreover, the power utilized to introduce the interference can be enough to cause macro signal quality around the femtocell access point (AP) to fall below a scan trigger level. The UE(s) can detect the macro signal quality decline below the scan trigger level and scan other frequency bands, including the femtocell, on which to camp. Additionally, the system can perform femto pilot gating, such that the jamming component can scan the radio environment surrounding the femto AP during an off state, to determine information that facilitates jamming of a macro pilot. | 04-21-2011 |
20110092152 | WIRELESS COMMUNICATION SYSTEM FOR CONTROLLING COMMUNICATION AREA BY JAMMING - A wireless communication system for geographically controlling a communication area includes an access point for communicating with a terminal in a first area, and a jammer for generating noise for intercepting communication between the access point and a terminal in a second area. A jamming boundary for dividing an area in which the terminal can communicate with the access point and an area in which the terminal cannot communicate with the access point in an area in which the first area and the second area are overlapped is formed, and the jamming boundary is formed by a ratio between power of a signal transmitted to the terminal by the access point and power of a signal of the noise. | 04-21-2011 |
20110097991 | IONIZING COMMUNICATION DISRUPTOR UNIT - An apparatus includes a voltage generator and a superstructure. The voltage generator includes a conductive base, an insulating spacer and a conductive top. The superstructure includes a platform and an antenna system. The voltage generator provides a voltage difference between the conductive base and the conductive top that is greater than 10,000 volts. | 04-28-2011 |
20110130085 | METHOD AND APPARATUS FOR IDENTIFYING READ ZONE OF RFID READER - An apparatus and method for identifying the read zone of an RFID reader. The apparatus includes a supporting sheet, a reader-position mark on the supporting sheet to indicate a recommended location to position an RFID reader, and a zone-boundary mark on the supporting sheet to indicate a read zone of the RFID reader with a predetermined field strength. | 06-02-2011 |
20110151768 | Apparatus And Method For Detecting Jamming Of Communications - Location determination signals are received and a location of interest is determined from the location determination signals. A communication service with a known, valid base station via a first communication channel is established and synchronized. A first rate of rise of a signal strength indicator associated with the first communication channel is monitored and a second rate of rise of a signal quality indicator associated with the first communication channel is also monitored. When at least one of the first rate rises at a rate greater than a first predetermined threshold rate and the second rate rises at a rate greater than a second predetermined threshold rate, a warning message is transmitted to the known, valid base station before synchronization of the communication service is lost with the known, valid base station. | 06-23-2011 |
20110159798 | CONTROL DEVICE FOR SHIELDING A ROOM - A control device that shields a room from incoming signals includes an interference device which is adapted for querying an interference signal for rendering a signal that enters a room unrecognisable by superposition with the interference signal. | 06-30-2011 |
20110183601 | APPARATUS, SYSTEM, AND METHOD FOR DETECTING THE PRESENCE AND CONTROLLING THE OPERATION OF MOBILE DEVICES WITHIN A VEHICLE - An apparatus, system, and method for determining the presence of a mobile device located in a predetermined detection zone within a vehicle are disclosed. A detection module receives a communication signal, determines that the communication signal was transmitted by a mobile device located within a predetermined detection zone within a vehicle, and a control module transmits a control signal to the mobile device located within the predetermined detection zone. The system further includes a monitoring logic to monitor a functional system of the vehicle activating the transmission of the control signal by the control module when the monitored functional system is activated and the detection module determines that the communication signal was transmitted by the mobile device located within the predetermined detection zone. | 07-28-2011 |
20110183602 | JAMMING APPARATUS AND METHOD FOR JAMMING A TARGET SIGNAL - In various areas of application, it is desirable to have a jamming apparatus for jamming radio signals which is greatly limited in geographical terms and ensures reliable jamming of the radio signals. The present application solves this problem by providing a jamming apparatus which comprises:
| 07-28-2011 |
20110217918 | DEVICE AND METHOD FOR JAMMER RESISTANCE IN BROADBAND RECEIVERS - A multiband heterodyne receiver, and method, having a source of a received signal, a local oscillator that outputs a local oscillator signal, and a mixer that combines the received signal and the local oscillator signal to generate a combined signal. The local oscillator signal can be adjusted in accordance with a detected jamming signal. A DC filter receives the combined signal and attenuates a DC component of the combined signal so as to output a DC filtered signal, and an analog-to-digital converter receives the DC filtered signal and converts the DC filtered signal to a digital signal. | 09-08-2011 |
20110217919 | Wireless Telecommunications Signal Inhibition - Wireless telecommunications is inhibited within a limited region by generating a noise signal within a frequency range of the wireless telecommunications and broadcasting the noise signal into the limited region. A system for inhibiting wireless communications includes a radio frequency noise generator generating a noise signal within a frequency range of the wireless telecommunication. At least one antenna broadcasts the noise signal into the region. Control logic initiates or suspends broadcasting of the noise signal based on at least one control input. | 09-08-2011 |
20110223851 | MULTI-BAND JAMMER INCLUDING AIRBORNE SYSTEMS - An airborne jammer for transport by an aircraft for jamming communications in a communications system where the communications system operates with digital bursts having burst periods measured in time and occurring in a communication frequency band such as GSM having a transmit band and a receive band. The jammer includes a tone comb generator for providing repetitions of jamming signals for the communication frequency band where the jamming signals have jamming signal intervals providing frequency separation between the jamming signals. The jamming signals are generated with a dwell time substantially less than a burst period for the communications system. The jamming signals are transmitted as RF jamming signals to jam communications for mobile stations. | 09-15-2011 |
20110223852 | WIRELESS PERIMETER SECURITY DEVICE AND NETWORK USING SAME - A Radio Frequency based security system for providing security for wireless Local Area Networks (WLAN) that allows the creation and maintenance of arbitrarily shaped secure wireless access areas with boundaries around said wireless Local Area Network and prevents access to the said wireless LAN from outside the perimeter of the secure area. The system includes a plurality of perimeter Radio Frequency Sentry Devices (RFSDs) that are employed to establish the boundaries of said secure area around said wireless LAN. The wireless LAN being secured may be an industry standard IEEE 802.11a, 801.11b or 802.11g based wireless LAN or any other wireless LAN that uses packet based communication protocols. The said RFSDs may be stand-alone devices or they may be connected to a wired or wireless Local Area Network. | 09-15-2011 |
20110263195 | USE OF STEERING SIGNALS IN INTERFERENCE CANCELLATION WITH APPLICATION TO COMMUNICATION THROUGH SIGNAL JAMMING - 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. | 10-27-2011 |
20110275308 | GPS AIDED OPEN LOOP COHERENT FOCUSING - Precision surgical jamming of a target located at a distance uses GPS to coherently focus the jamming energy transmitted from a plurality of nodes. One of the nodes is designated as a master node and the remaining nodes are designated as auxiliary nodes. Each node tracks the carrier phases of satellite signals transmitted by a plurality of GPS satellites relative to a carrier phase of a reference oscillator in the respective node. The master node provides the tracked phase measurements along with its position information to all of the auxiliary nodes. The auxiliary nodes determine the phase offset of its reference oscillator relative to the reference oscillator of the master node based on the transmitted data. The transmit phase of a jammer transmitter in each of the nodes is then aligned to the phase of the reference oscillator to transmit a coherent focused beam to a distant target. | 11-10-2011 |
20110319010 | SYSTEMS AND METHODS FOR IDENTIFICATION OF MOBILE PHONES IN A RESTRICTED ENVIRONMENT - Methods and systems for identifying mobile communication terminals that are used in an unauthorized manner in a restricted environment. A monitoring system monitors mobile communication terminals that operate in the vicinity of a restricted environment, such as a prison. A profiling system analyzes the communication of the solicited terminals, and produces respective activity profiles of the terminals. Based on the activity profiles, the profiling system identifies communication terminals that are operated illegitimately. Various actions can be taken with respect to such illegitimate terminals. In a prison application, the profiling system identifies communication terminals that are operated illegitimately by prisoners. | 12-29-2011 |
20120009865 | METHOD AND SYSTEM FOR DISABLING A WIRELESS COMMUNICATION DEVICE - A method and system for disabling a wireless communication device, including: capturing a signal stream from the wireless communication device by satisfying a signal control protocol using a mobile broadcast antenna; and routing signals to and from the wireless communication device according to a non-standard protocol, thereby disabling normal operation of the wireless communication device. The mobile broadcast antenna includes a signal capturing module configured to receive information relevant to satisfaction of the signal control protocol and to alter a signal of the mobile broadcast antenna. The signal capturing module detects signal strengths from other broadcast antenna and alters a broadcast strength of the mobile broadcast antenna to be higher than the detected signal strengths. The signal capturing module calculates a desired signal strength difference according to a desired protection characteristic and alters the broadcast strength of the mobile broadcast antenna to satisfy the desired signal strength difference. | 01-12-2012 |
20120040602 | METHOD AND DEVICE FOR ESTIMATION OF THE TRANSMISSION CHARACTERISTICS OF A RADIO FREQUENCY SYSTEM - A device and method for estimating the operational effectiveness, status, and protection range of an electronic countermeasures system in real time or near real time are provided. The device and method calculate a predicted ECM power at a given location using a propagation and scenario model. Then a measured ECM power at the given location is used to determine a correction value equal to the difference between the calculated and measured ECM powers. The correction value and the propagation model are then used with a heuristic method to refine estimates of propagation and scenario parameters. The refined parameter set is used to produce a refined prediction of ECM power, which is used to create a refined correction factor. The refined correction factor is used to determine predicted ECM powers at a plurality of locations in an area around the device to determine a boundary of protection. | 02-16-2012 |
20120045984 | METHOD OF JAMMING - A jamming system includes at least three jamming units. Each jamming unit is separately positionable and pointable. Each jamming unit covers different frequency bands. A method of using the jamming system includes moving a first jamming unit relative to a second jamming unit, and yawing a first jamming unit relative to an orientation of a third jamming unit. | 02-23-2012 |
20120088446 | METHOD AND SYSTEM FOR PREVENTING DEVICE OPERATION WHEN DRIVING - 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. | 04-12-2012 |
20120135675 | METHOD AND APPARATUS FOR CANCELING INTRODUCED SIGNAL AND COGNITIVE RADIO COMMUNICATION APPARATUS USING THE SAME - The present invention relates to a wireless communication system and, more particularly, to a spectrum sensing method in cognitive radio communication. According to an aspect of the present invention, a method of canceling an introduced transmission signal includes generating a first signal, having an inverse phase, using a data transmission signal transmitted by a data transmission unit, adjusting a path and/or an amplitude of the first signal, and generating a first signal, having an inverse phase, using a data transmission signal transmitted by a data transmission unit, adjusting a path and/or an amplitude of the first signal, and canceling a second signal, introduced through a data receiving unit, and the first signal by the data transmission signal. | 05-31-2012 |
20120178358 | METHODS OF SUPPRESSING GSM WIRELESS DEVICE THREATS IN DYNAMIC OR WIDE AREA STATIC ENVIRONMENTS USING MINIMAL POWER CONSUMPTION AND COLLATERAL INTERFERENCE - 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. | 07-12-2012 |
20120184200 | SYSTEM AND METHOD FOR CONFIGURING A WIRELESS CONTROL SYSTEM OF A VEHICLE USING INDUCTION FIELD COMMUNICATION - A system for mounting in a vehicle and for providing a control signal to a remote device based on information stored in a portable electronic device includes a radio frequency transmitter for transmitting a control signal to the remote device. The system also includes a first circuit configured to receive first information from the portable electronic device via inductive-coupling between the portable electronic device and the first circuit when the portable electronic device is brought within the induction field of the first circuit. The system also includes a second circuit configured to use the first information received from the portable electronic device and to at least one of format the control signal in accordance with the first information and to cause the radio frequency transmitter to format the control signal in accordance with the first information. | 07-19-2012 |
20120196525 | METHOD AND APPARATUS OF PERFORMING VIDEO PROGRAMMING SECURITY CONTROL - 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. | 08-02-2012 |
20120214402 | PHY-LEVEL WIRELESS SECURITY - A method for communication includes generating one or more data streams for transmission to respective target receivers, and one or more jamming streams. At least one parameter, selected from a group of parameters consisting of power ratios for allocation to the jamming streams and Modulation and Coding Schemes (MCSs) for assigning to the data streams, is calculated based on a criterion that is set to reduce a probability of the data streams being decoded by at least one eavesdropping receiver. The data streams and the jamming streams are transmitted using an antenna array while applying the at least one parameter. | 08-23-2012 |
20120214403 | TIME-VARYING PHY-LEVEL WIRELESS SECURITY - A method for communication includes generating a data transmission including multiple successive parts in respective time intervals, for transmission to a target receiver. At least one jamming transmission is generated, having a configuration that varies over the respective time intervals corresponding to the parts of the data transmission, including at least first and second different configurations generated during respective first and second time intervals. The data transmission is transmitted to the target receiver using an antenna array, and the at least one jamming transmission is transmitted simultaneously using the antenna array. | 08-23-2012 |
20120214404 | MULTI-MODE PHY-LEVEL WIRELESS SECURITY - A method for communication includes, in a transmitter that transmits one or more data streams to respective target receivers and one or more jamming streams for preventing the data streams from being decoded by eavesdropping receivers, holding a definition of at least first and second transmission modes having respective, different first and second levels of security in preventing the data streams from being decoded by the eavesdropping receivers. One of the first and second transmission modes is selected for transmitting a data stream to a target receiver, by evaluating a selection criterion. The data stream and the jamming streams are transmitted via an antenna array using the selected transmission mode. | 08-23-2012 |
20120220213 | VEHICLE SAFETY SYSTEM - The vehicle safety system selectively deactivates a driver's cellular telephone when the driver is ready to drive his or her vehicle. The vehicle safety system first determines the proximity between the cellular telephone and the driver's seat of the vehicle. An identification tag is mounted on or in the vicinity of the driver's seat. The identification tag is sensed by a sensor to determine proximity. A gear state of the vehicle is then determined and transmitted to a call authorization module associated with the cellular telephone. The sensor for sensing the identification tag is also associated with the call authorization module. The call authorization module selectively deactivates the cellular telephone when the cellular telephone is located within a pre-set range from the driver's seat of the vehicle and the gear state of the vehicle is such that the vehicle may be driven under power. | 08-30-2012 |
20120225619 | METHOD AND DEVICE FOR ESTIMATION OF THE TRANSMISSION CHARACTERISTICS OF A RADIO FREQUENCY SYSTEM - A device and method for estimation of the transmission characteristics of a Radio Frequency system are provided. The device and method calculate a predicted receive power at a given location using a propagation and scenario model. Then a measured receive power at the given location is used to determine a correction value equal to the difference between the calculated and measured receive powers. The correction value and the propagation model are then used with a heuristic method to refine estimates of propagation and scenario parameters. The refined parameter set is used to produce a refined prediction of receive power, which is used to create a refined correction factor. The refined correction factor is used to determine predicted receive powers at a plurality of locations. | 09-06-2012 |
20120231724 | FILTERING CIRCUIT WITH JAMMER GENERATOR - A filtering circuit with a jammer generator cancels a jammer in wireless signals with little degradation of the signal-to-noise ratio (SNR). The filtering circuit may include a jammer generator which acquires information of period and phase of a sinusoidal jammer signal in a composite input sinusoidal signal, which includes the jammer signal and a desired signal, and outputs a pseudo sine-wave with a period and phase corresponding with the period and phase of the jammer signal acquired, and an adder which outputs a difference between the input and output signals of the jammer generator as the desired signal. | 09-13-2012 |
20120244794 | REGULATION OF SERVICE IN RESTRICTED TELECOMMUNICATION SERVICE AREA - System(s) and method(s) are provided to regulate telecommunication service 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. The monitoring of signaling activity can enable location of a source of wireless activity, while monitoring of traffic can lead to identification of a user thereof. | 09-27-2012 |
20120252349 | Digital processing for co-site interference mitigation - A radio system providing long-range radio communications in the presence of a co-located high power jammer or other radio transmitter that is operating in a frequency band overlapping the communications transmit/receive band. The system collects sample signals from co-located overlapping radio. It down-converts the sample signal and the receive radio signal, digitizes the two signals, and utilizes a computer processor to cancel the sample signal from the receive radio signal to output a mitigated output signal. | 10-04-2012 |
20120252350 | VEHICLE SAFETY DEVICE FOR REDUCING DRIVER DISTRACTIONS - A safety device for vehicles. The device inhibits use of communication devices that run the risk of distracting a driver/operator while the vehicle is in motion. Several techniques for inhibiting use are described which can be used individually or in a complementary combinations. In one technique, a rapidly varying signal level is created local to the communication device. The variations exceed the operational limits of the system, thereby inhibiting communications. The device may be in a constant-on mode, unless it detects an attempt to make a communication classified as appropriate. Such a device may inhibit short messages, such as “text” messages and may also allow or, in some embodiments, place emergency calls. | 10-04-2012 |
20120264364 | DIRECT MIXER WITH TRANSISTOR AND SAMPLE-AND-HOLD MODULE - A direct mixer includes a transistor and sample-and-hold module and uses a transposition of an RF signal into baseband with a configuration with high dynamic range and low noise factor. | 10-18-2012 |
20120276838 | Radio frequency signal detection and replication apparatus and method - An apparatus and system for the replication of a Radio Frequency (RF) signal that is being employed as a method of activating or functioning a Radio Controlled Improvised Explosive Device (RCIED), which comprises the method of scanning the RF spectrum, detecting a signal, replicating any embedded coding contained within the signal and transmitting the signal in a repetitious state while periodically scanning the RF spectrum for the same signal or another signal that meets the programmed replication criteria. | 11-01-2012 |
20120302155 | MULTI-MODE COMMUNICATION UNIT - There is described a method of operating a multi-mode communication unit. For each frame of a data structure, the unit selectively sets a mode of operation for one of transmission and reception for a given duration, for operation in a radio communication mode of operation or in a sensing mode of operation. The unit interrupts a task within a given frame at a time selected in accordance with a set of priorities, and performs a different task for a given duration. | 11-29-2012 |
20120309288 | System and Method for Allocating Jamming Energy Based on Three-Dimensional Geolocation of Emitters - 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. | 12-06-2012 |
20120322360 | Distributed Wireless Communications for Tactical Network Dominance - Ad-hoc networks employing cooperative signal processing are configured for detecting and disrupting a target radio communication network. Such ad-hoc networks are particularly useful for identifying radio communication resources, establishing radio links, and subverting an adversary's communication capabilities in environments lacking available communication infrastructure, including battlefield environments, and locations where communication infrastructure is non-existent or has been compromised by natural disasters or terrorists attacks. | 12-20-2012 |
20120329382 | FEMTO JAMMING OF MACRO PILOT - A system and methodology that facilitates triggering device scanning and efficient femtocell detection in areas dominated by macro cells is provided. In particular, the system can includes a jamming component that generates a small and measured amount of interference to user equipment or user equipments (UEs) camping on nearby macro carriers. Moreover, the power utilized to introduce the interference can be enough to cause macro signal quality around the femtocell access point (AP) to fall below a scan trigger level. The UE(s) can detect the macro signal quality decline below the scan trigger level and scan other frequency bands, including the femtocell, on which to camp. Additionally, the system can perform femto pilot gating, such that the jamming component can scan the radio environment surrounding the femto AP during an off state, to determine information that facilitates jamming of a macro pilot. | 12-27-2012 |
20130023201 | SYSTEMS AND METHODS FOR RADIO FREQUENCY HOPPING COMMUNICATIONS JAMMING UTILIZING SOFTWARE DEFINED RADIO PLATFORMS - A dynamically-reconfigurable multiband multiprotocol communications jamming system and method is provided that are particularly suited for the generation of effective radio-frequency waveforms/noise output that successively translates up and down the RF spectrum. The system and method are particularly suited for strategically targeting specific frequencies in order to disrupt a communications network or networks, and can be rapidly deployed via delivery platforms, such as artillery and other projectile mechanisms, remote operated vehicles (unmanned aerial, sea or land systems) or targeted air or land delivery via manned assets or automated or robotic support means, or manual delivery by personnel. | 01-24-2013 |
20130040555 | ROBUST SPUR INDUCED TRANSMIT ECHO CANCELLATION FOR MULTI-CARRIER SYSTEMS SUPPORT IN AN RF INTEGRATED TRANSCEIVER - A method and apparatus for eliminating transmit echo spurs is provided. The method includes the steps of: estimating a distortion effect applied to a transmit signal by a duplexer stop band. Next, the contribution of a primary component of the spur is estimated. An image component of the spur is estimated after the primary contribution has been estimated. The transmit echo is then subtracted from the composite desired signal by digitally subtracting the distortion effect, the primary component of the spur, and the image component of the spur, producing the desired composite transmit signal without the transmit echo. | 02-14-2013 |
20130130614 | PROTECTION OF NEAR-FIELD COMMUNICATION EXCHANGES - 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. | 05-23-2013 |
20130178148 | METHOD FOR JAMMING COMMUNICATIONS IN A CLOSED-LOOP CONTROL NETWORK - 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. | 07-11-2013 |
20130237141 | RADIO FREQUENCY BARRIER IN A WIRELESS COMMUNICATION NETWORK - 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. | 09-12-2013 |
20130237142 | REGULATION OF SERVICE IN RESTRICTED TELECOMMUNICATION SERVICE AREA - 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. The monitoring of signaling activity can enable location of a source of wireless activity, while monitoring of traffic can lead to identification of a user thereof. | 09-12-2013 |
20130260671 | REMOTE SATELLITE TERMINAL WITH ANTENNA POLARIZATION ALIGNMENT ENFORCEMENT AND ASSOCIATED METHODS - 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. | 10-03-2013 |
20130267163 | COMMUNICATIONS SECURITY IN MULTIPLE-ANTENNA WIRELESS NETWORKS - 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. The transmitter/receiver transmits the signal beam and the blinding beams simultaneously | 10-10-2013 |
20130281005 | FACILITATION OF SECURITY EMPLOYING A FEMTO CELL ACCESS POINT - 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. | 10-24-2013 |
20130303075 | ASSEMBLY AND METHOD FOR PREVENTING WIRELESS COMMUNICATION WHILE DRIVING - 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. | 11-14-2013 |
20130316638 | WIDEBAND INTELLIGENT JAMMING CONTROL APPARATUS AND METHOD - 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. | 11-28-2013 |
20140106662 | Simplified apparatus for positively preventing the use of mobile personal communication devices - A simplified apparatus for positively preventing the use of mobile personal communication devices by the operator of a vehicle comprises a motion responsive device in the vehicle, switching means operable by the device when the vehicle is in motion, a signal jammer operable by the switching means to block at least one of the incoming or outgoping signals associated with communication device when the vehicle is in motion, and a power supply for the jammer. | 04-17-2014 |
20140120827 | Integration of Cellular Phone Detection and Reporting Into a Prison Telephone System - The present subject matter is directed to an apparatus and methodology for monitoring for the occurrence of use of unauthorized telecommunications equipment within a designated area. The present subject matter has particular utility to the corrections environment in that it discloses a methodology for detecting and reporting the unauthorized operation of cellular telephones within a corrections facility. The present technology may he used advantageously in combination with inmate telephone systems to transmit information to appropriate personnel in the form of email messages and/or voice communications by way of telephone local or corrections facility external telephone lines. The present technology also provides for recordation and storage of time, date and location information for detected events. | 05-01-2014 |
20140154967 | SYSTEM, METHOD, AND DEVICE TO CONTROL WIRELESS COMMUNICATIONS - Methods and systems for controlling wireless communications are provided. A method includes sending, from a mobile base station mimicking system, signals that mimic a first base station of a wireless communication system. The method also includes selectively routing, at the mobile base station mimicking system, communications associated with at least one communication device, wherein selectively routing the communications comprises forwarding a first communication associated with the at least one communication device and blocking a second communication associated with the at least one communication device. | 06-05-2014 |
20140170963 | METHOD FOR JAMMING COMMUNICATIONS IN AN OPEN-LOOP-CONTROLLED NETWORK - A method for optimizing the jamming of P predefined zones or positions in a communications network of transmitters, jammers and receivers comprising several platforms, uses a local reception situation at the level of each friendly platform, a local jamming situation at the level of each friendly reception platform, and determines for each friendly transmitting platform and each friendly receiving platform, one or more parameters so as to minimize or to eliminate the fratricidal effects on the friendly reception platforms. | 06-19-2014 |
20140206279 | METHOD AND SYSTEM FOR INTELLIGENT JAMMING SIGNAL GENERATION - Detecting and jamming a wireless network using an intelligent jammer comprises determining that a signal source is an unlicensed signal source, synchronizing the intelligent jammer with the unlicensed signal source, determining a time and a frequency of a protocol signal associated with the unlicensed signal source, and transmitting a jamming signal according to the time and the frequency of the protocol signal. A system for detecting and jamming a wireless network comprises a first intelligent jammer, and an Intelligent Detection and Jamming Server (IDJS) coupled to the first intelligent jammer | 07-24-2014 |
20140235159 | Vehicle Cellphone Blocker - A system or method that blocks the operation of a cellphone in a powered vehicle, so that the driver complies with the new cellphone legislation, that is coming into effect, or is in effect around the world, and provides additional safety assurance for family members, individuals, and employers. | 08-21-2014 |
20140349568 | Detection of Intentional Radio Jamming - There is provided a method, an apparatus, and a computer program for acquiring, in a radio communication network infrastructure, a message from a terminal device indicating communication quality below a determined threshold in a radio connection between the radio communication network infrastructure and the terminal device; detecting presence of an intentional radio interference source, wherein the detection is based on at least one measurement report received from the terminal device; and upon a result of said detection of the intentional radio interference source, causing transmission of a notification message to a determined target entity. | 11-27-2014 |
20140364053 | Service signal used as part of terrestrial communications masking signal on board aircraft - A control unit for controlling wireless data transmissions in a mobile communications system provided on board an aircraft, a mobile communications system having a control unit of this type, an associated method for controlling wireless data transmissions in a mobile communications system provided on board an aircraft, and a computer program for carrying out the method. The control unit comprises a generating component for generating a band-limited masking signal for masking terrestrial mobile communications signals in a first frequency band and a combining component for combining the band-limited masking signal and a service signal for the wireless transmission of data in a second frequency band different from the first frequency band. The combining component is configured to combine the masking signal and the service signal so that terrestrial mobile communications signals in a third frequency band formed by overlapping of the first and the second frequency band are masked. | 12-11-2014 |
20150031283 | System for Blocking Mobile Cellular Activity within A Transportation Vehicle - A system and method of blocking mobile cellular activity within a transportation vehicle utilizes mobile phone jamming technology in conjunction with at least one sensor to block wireless capability of mobile devices while the transportation vehicle is in motion or capable of motion. | 01-29-2015 |
20150056915 | REGULATION OF SERVICE IN RESTRICTED TELECOMMUNICATION SERVICE AREA - 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. The monitoring of signaling activity can enable location of a source of wireless activity, while monitoring of traffic can lead to identification of a user thereof. | 02-26-2015 |
20150087223 | SYSTEM FOR CONTROLLING THE USAGE OF MOBILE DEVICE IN A VEHICLE - A system for controlling the usage of mobile device in a moving vehicle is disclosed in the present invention. Said system comprises of a GPS device and a cell phone blocker. When said GPS detects the vehicle is in a speed over a pre-determined threshold, said GPS activates said cell phone blocker which blocks the use of cell phones in said vehicle. | 03-26-2015 |
20150099457 | SIMPLIFIED APPARATUS FOR POSITIVELY PREVENTING THE USE OF MOBILE PERSONAL COMMUNICATION DEVICES - A simplified apparatus for positively preventing the use of mobile personal communication devices by the operator of a vehicle comprises a motion responsive device in the vehicle, switching means operable by the device when the vehicle is in motion, a signal jammer operable by the switching means to block at least one of the incoming or outgoping signals associated with communication device when the vehicle is in motion, and a power supply for the jammer. | 04-09-2015 |
20150147957 | SYSTEMS AND METHODS FOR RADIO FREQUENCY HOPPING COMMUNICATIONS JAMMING UTILIZING SOFTWARE DEFINED RADIO PLATFORMS - A dynamically-reconfigurable multiband multiprotocol communications jamming system and method is provided that are particularly suited for the generation of effective radio-frequency waveforms/noise output that successively translates up and down the RF spectrum. The system and method are particularly suited for strategically targeting specific frequencies in order to disrupt a communications network or networks, and can be rapidly deployed via delivery platforms, such as artillery and other projectile mechanisms, remote operated vehicles (unmanned aerial, sea or land systems) or targeted air or land delivery via manned assets or automated or robotic support means, or manual delivery by personnel. | 05-28-2015 |
20150349914 | ANALOG RF MEMORY SYSTEM - An electronic analog memory system includes at least one analog programmable delay module configured to receive an input radio frequency pulse. The analog programmable delay module generates a time delayed output signal in response to applying at least one time delay to the input radio frequency pulse. A switching module is configured to selectively deliver the time delayed output signal to an output of the electronic analog memory system. The electronic analog memory system further includes an activity detector module configured to determine the amplitude of the input radio frequency pulse. The activity detector module also controls the switching module to deliver the time delayed output signal to the output in response to the at least one amplitude exceeding an amplitude threshold. | 12-03-2015 |
20160036557 | DEVICE AND METHOD FOR LIMITING AN EXTENT OF A WIRELESS NETWORK SERVICE - A device for limiting an extent of a wireless network service is provided. The device includes a directional antenna disposed at or near an intended boundary of the wireless network service, and a signal generator configured to drive the directional antenna to transmit a jamming signal in a direction substantially parallel to or away from a closest portion of the intended boundary of the wireless network service. The jamming signal degrades the quality of a wireless network signal, and has a signal strength equal to or larger than that of the wireless network signal at a preselected location at or near the intended boundary of the wireless network service. | 02-04-2016 |
20160056915 | FACILITATION OF SECURITY EMPLOYING A FEMTO CELL ACCESS POINT - 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 detection range of the FAP can be determined. One or more frequencies in the detection 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. | 02-25-2016 |
20160072611 | RFID DISRUPTION DEVICE AND RELATED METHODS - Devices and methods of disrupting data transfer between an RFID interrogation device ( | 03-10-2016 |
20160080106 | METHOD FOR ASSIGNING PRS MUTING PATTERNS FOR RSTD MEASUREMENT ACQUISITION - One or more sequences of binary values may be generated based on a length L and a duty cycle D, wherein duty cycle D denotes a percentage of a number of bits of value one in length L. Then, based on an identity of a cell, a sequence may be selected for use by a base station in muting its transmission of a positioning signal. The sequence which is selected may be used directly in muting with no change therein, or may be elongated followed by use of an elongated sequence in muting. When specific occasions are muted in the positioning signal, a mobile device may measure times of arrival of other positioning signals that are not muted. Two such measurements of arrival times may be used to compute a difference there between, for use as a difference measurement in a procedure to determine a location of the mobile device. | 03-17-2016 |
20160094309 | SYSTEM AND METHOD FOR JAMMING CELLULAR SIGNALS USING AERIAL VEHICLES - A system and method for jamming cellular signals using aerial vehicles is provided. In a preferred embodiment, the aerial vehicles are unmanned aerial vehicles. A plurality of aerial vehicles are coordinated together to send signals to a predetermined area to jam the cellular network. | 03-31-2016 |
20160105254 | METHODS AND APPARATUSES FOR ALLOCATING ELECTROMAGNETIC-SPECTRUM JAMMING ASSETS - Embodiments of a method and apparatus for assigning electromagnetic-spectrum (ES) jamming assets are generally described herein. In some embodiments, the method includes dividing an electronic warfare (EW) support area into a grid. The method may further include determining a vulnerability area (VA) of the entity based on planned route information of the entity within the EW support area. The VA may include portions of the grid. The method may further include assigning a first jamming asset to the VA based on a coverage capability of the first jamming asset. The coverage capability may include a number of contiguous portions of the grid. | 04-14-2016 |
20160112965 | ANCHOR CARRIER IN A MULTIPLE CARRIER WIRELSS COMMUNICATION SYSTEM - Multiple downlink (DL) and uplink (UL) carriers can enhance wireless communication between nodes and user equipment (UE). Among the carriers, it is beneficial to have some special, by configuration designated carriers to provide synchronization, system information, paging, data and control for multi-carrier enabled UEs. Thereby, overhead system information can be reduced. For instance, synchronization and paging for a certain cell are not provided on all carriers. A carrier can provide backward compatibility for single carrier UEs for access, synchronization, broadcast, and new control region within the data region of the legacy terminals. Coordination between nodes for selecting anchor carriers that mitigate interference and for transmit power control for non-anchor carriers provide further network performance advantages. | 04-21-2016 |
20160142173 | SYSTEM ARCHITECTURE FOR MANAGING RESOURCES IN A COMMUNICATION NETWORK - A system architecture for managing resources in a communication network comprises in combination at least the following elements: a plurality of radio equipments working in a given frequency band and with identical frequency hopping rules; the radio equipments are managed by a master device; and a radio equipment comprises at least: a radiocommunication module that carries the radiocommunications; a module suitable for tapping, monitoring and intercepting radio signals in the environment and for recording them locally in a database; a module suitable for disrupting non-authorized communications; and a local “3 in 1” management module receiving the orders emitted by the master device, the management module being suitable for controlling the various modules of the radio equipment; a radio-router module; and a tapping and monitoring module. | 05-19-2016 |
20160142174 | MOBILE DEVICE PREVENTION OF CONTACTLESS CARD ATTACKS - Technologies related to mobile device prevention of contactless card attacks are generally described. In some examples, a mobile computing device may monitor for electromagnetic signals at frequencies used for short range communications with contactless cards. Detection of such electromagnetic signals by the mobile computing device may indicate an attack attempt on a proximal contactless card. In response to detection of such electromagnetic signals, the mobile computing device may automatically generate a disruption signal effective to disrupt communications between contactless card readers and any proximal contactless cards, to thereby foil the attack before sensitive contactless card data is stolen. | 05-19-2016 |
20160173226 | UPLINK DATA ROUTING DURING MULTIPLE CARRIER POWER IMBALANCE | 06-16-2016 |
20160380718 | INTEGRATION OF CELLULAR PHONE DETECTION AND REPORTING INTO A PRISON TELEPHONE SYSTEM - The present subject matter is directed to an apparatus and methodology for monitoring for the occurrence of use of unauthorized telecommunications equipment within a designated area. The present subject matter has particular utility to the corrections environment in that it discloses a methodology for detecting and reporting the unauthorized operation of cellular telephones within a corrections facility. The present technology may be used advantageously in combination with inmate telephone systems to transmit information to appropriate personnel in the form of email messages and/or voice communications by way of telephone local or corrections facility external telephone lines. The present technology also provides for recordation and storage of time, date and location information for detected events. | 12-29-2016 |
20160380719 | METHOD FOR MASKING COMMUNICATION SIGNALS, ENODEB WITH MASKING FUNCTIONALITY AND AIRCRAFT - A method for masking communication signals, particularly for masking terrestrial RF communication signals on board of an aircraft, includes parallelizing a first information data stream to be transmitted on a first LTE transmission channel, the first LTE transmission channel having a first channel transmission bandwidth and at least one guard band adjacent to the channel transmission bandwidth; spreading the first information data stream over a plurality of mutually orthogonal data subcarriers within the first channel transmission bandwidth; generating a CAZAC sequence; spreading the generated CAZAC sequence over guard band subcarriers within the at least one guard band; and transmitting the first information data stream over the data subcarriers in parallel to the CAZAC sequence over the guard band subcarriers. | 12-29-2016 |
20170237520 | PORTABLE COUNTERMEASURE DEVICE AGAINST UNMANNED SYSTEMS | 08-17-2017 |