249 results about "Electronic warfare" patented technology

A terminal and electrical water-resistance method, the terminal includes: a circuit board, a battery providing a power source for the circuit board, a housing provided with a transparent medium used for reflecting light; the circuit board includes: a detection module, configured to: emit light towards the transparent medium, receive the light reflected by the transparent medium to convert into electric signal data to send to a control module; the control module, configured to: receive the electric signal data to compare with preset data, trigger the power-off switch when a difference value between the electric signal data and the preset data reaches a preset threshold which is preset according to the light and the transparent medium, wherein, the preset data are electric signal data when the light is totally reflected by the transparent medium; a power-off switch configured to: disconnect a connection between the circuit board and the battery after triggering.

In phased array antennas, multiple signals that perform different functions, such as radar, electronic warfare (EW) and telecommunications, can each be simultaneously transmitted only through a different sub-aperture of the array. For maximum power and efficiency, the power amplifiers operate on one signal at a time. This patent provides the technique of forming a common waveform from multiple signals for transmission through a common aperture. To practically implement this technique in wideband operations, processes performing the required waveform-shaping and amplitude-to-phase-modulation are devised that can transmit the high-power diverse waveforms without serious intermodulations and spectral distortion through every element of the array.

The invention provides a processing method for a gifted amount in an electronic wallet and a server. The method comprises the steps of: transmitting recharging commands to the electronic wallet by the server according to a trigger strategy, wherein the recharging commands contain the gifted amount; adding the gifted amount in the account of the electronic wallet according to the recharging commands, and returning results of recharging success to the server by the electronic wallet; and recording the gifted amount into the corresponding red packet subaccount of the electronic wallet by the server according to the results of recharging success returned by the electronic wallet. The server comprises a business management module, a payment processing module, a loading module and an account management module. By adopting the technical scheme, the flexibility of the electronic wallet in use can be improved, the implementation of various schemes for promotion of electronic wallet businesses can be facilitated, and the promotion and the development of electronic wallet business can be improved greatly.

The invention concerns a method of making an electronic payment by an electronic payment device comprising: transmitting from said electronic payment device (206) to an electronic receiving device (208, 210) a first money token (204) comprising at least data indicating an identifier of said first money token and an amount indicating a payment sum of said first money token, wherein said first money token further comprises an electronic watermark.

What is provided is a receiver-on-a-chip comprising a monolithic integrated circuit that reduces the receiver to a cigarette-pack-sized assembly mountable directly at an antenna element, with a much-increased operational bandwidth and instantaneous bandwidth, increased dynamic range and with a two-order-of-magnitude decrease in size and weight. Moreover, because of the elimination of all of the I / O drivers and attendant circuitry, power consumption is reduced by two-thirds, whereas the mean time before failure is increased to 10,000 hours due to the robustness of the monolithic integrated circuit and use of fiber optics.

The present invention provides an adjustable mobile electronic device holder that enables a user to operate a mobile electronic device such as a cell phone, tablet, or electronic reader in a hands free manner. The adjustable mobile electronic device holder includes a flexible arm interconnected with a plurality of flexible legs adapted to wrap around and grip a fixed object at a first end and a clamp mechanism adapted to secure a mobile electronic device at a second end. The clamp mechanism for securing the mobile electronic device includes a plurality of adjustable, flexible fingers that can grip the mobile electronic device placed therein. The flexible legs include independently adjustable ball and socket connectors in a linear arrangement. The flexible legs are used to mount the device onto the user's body or a fixed object whereby the mobile electronic device can be moved into a desired position for viewing.

What is provided is a receiver-on-a-chip comprising a monolithic integrated circuit that reduces the receiver to a cigarette-pack-sized assembly mountable directly at an antenna element, with a much-increased operational bandwidth and instantaneous bandwidth, increased dynamic range and with a two-order-of-magnitude decrease in size and weight. Moreover, because of the elimination of all of the I / O drivers and attendant circuitry, power consumption is reduced by two-thirds, whereas the mean time before failure is increased to 10,000 hours due to the robustness of the monolithic integrated circuit and use of fiber optics.

The invention discloses an establishing method of an electronic wallet based on a block chain. The method comprises steps of 1) establishing a new transaction and issuing various types of assets; 2) carrying out the transaction and broadcasting transaction lists to the whole network through a P2 network; 3) carrying out transaction verification; 4) verifying results and broadcasting transaction results to the whole network after the transaction is finished; and 5) writing the transaction results into a block of a block chain. According to the invention, by use of the distributed account book technology, the digital asset flows and real cash payment on the block chain are connected, so in the global Internet market, the function of high-efficiency and low cost value delivery that the traditional financial mechanism cannot replace can be developed; a block chain credit system from the information to the value network is formed; the cryptography packet of each person can be developed into a 'self-finance' platform; and payment, depositing, transferring, exchange, loans and the bookkeeping and clearing in the whole network of the P2P can be achieved.

In the field of power synthesis, the present invention proposes a compact four-way power distribution and synthesis structure, including a straight waveguide, a microstrip probe, an impedance matching section, a Wilkinson bridge, and an isolation resistor, and the straight waveguide is the input port of the power divider and the output port of the synthesizer, two symmetrical substrates are arranged at a quarter wavelength away from the short-circuit surface of the straight waveguide, and opposite microstrip probes for signal coupling are fixedly installed on the substrates, and each microstrip probe The strip probes are matched and connected to the microstrip line through the corresponding impedance matching section, and the microstrip line corresponds to the cascaded Wilkinson bridge; the impedance matching section, microstrip line, and Wilkinson bridge are all installed on the substrate The present invention has the characteristics of small size, compact structure, low loss, high port isolation, wide bandwidth, etc., and also has the function of four-way power distribution / combination from waveguide to microstrip transition; it can be applied to radar, electronic countermeasures, Electronic communication and other fields, suitable for microwave and millimeter wave frequency bands.

A Method and Apparatus to Perform Surgical Reactive Jamming while Maintaining Simultaneous Tactical Communications is disclosed. The system provides an enhancement to surgical reactive jammers that combines near-real-time jamming capability with the additional feature of allowing tactical communications. The tactical communications transmissions are compressed and packetized such that they can be broken up and transmitted during the jamming system's look-through periods. This approach facilitates listening during these look-through periods (not only for EW emitters, but also for friendly communications signals). The system should allows for talk during these look-through periods (“talk-through” periods). Such a system is unique in that it can automatically calculate the best frequency for a surgical reactive jammer to use against enemy targets as well as providing a fully secure tactical communications link which is synchronized with other units in the field. This invention is therefore vital to the interests of United States national security as it provides a valuable Electronic Warfare capability.

The invention relates to a two-channel digital radio-frequency memory board, and belongs to the technical field of data memory. The two-channel digital radio-frequency memory board comprises a power module, an ADC data acquisition module, a DAC data playback module, a DDR2 memory module, an FPGA acquisition control module, an FPGA playback control module, a DSP communication control module, an analog signal input interface module, an analog signal output interface module, a PCI interface module, a Rapid IO interface module and a customized bus interface module. The two-channel digital radio-frequency memory board is provided with two signal acquisition processing playback circuit branches, and each circuit branch has the sampling rate of 1.2GSPS and the playback rate of 1.2GSPS; and the two-channel digital radio-frequency memory board has various signal acquisition processing playback modes and data transmission mode, can realize functions of memorizing and forwarding signals with high frequency, and is suitable to be applied to the field of radar and electronic warfare confrontation.

A number of identical non-uniformly distributed ultra-wideband power amplifier string building blocks are coupled together to form an ultra-wide bandwidth high-power amplifier. The non-uniform distribution results in an amplifier utilizing modular string building blocks that have input and output impedances with only real values. This permits the strings to be replicated and connected together with simple impedance matching. The internal impedance matching associated with the non-linear distribution also absorbs parasitic capacitance to permit the ultra-broadband operation. In one embodiment identical transistors are used for each cell so that the strings may be identically replicated. This permits modular re-use without reconfiguration. In one embodiment a non-uniform distributed power amplifier built using the subject building blocks provides an ultra-wideband multi-octave device suitable for electronic warfare and communications applications, especially to replace traveling wave tubes.

The integrated, multiple independent, simultaneous signal software defined radio system architecture of this invention is suitable for many new very-low latency, software defined radio applications, both cognitive and conventional, including: communications networks, electronic warfare, surveillance and radar. The system supports multiple operations, locally controlled or remotely controlled, with simultaneous signals prosecutions and anti-jam system-to-system networking. New cognitive waveforms are defined that simultaneously seek to maximize data throughput in arbitrary spectral environments, while normally avoiding interference with current and new arbitrary signal occurrences. The cognitive radio system has the capability to continuously receive and process all the ongoing signals present in a wideband frequency block, including the recognition / characterization of all signals and the recovery of multiple desired signals, and then rapidly respond by transmitting as appropriate, multi-carrier, modulated signals. The present invention uses massively-parallel fixed tuned receive channelization, along with massively parallel digital signal processing and software generated, multi-modulated RF signals, to provide a system that is fast enough to cognitively manage the ongoing operation of multiple signals, multiple frequencies, and multiple operations, all simultaneously.

A method and system for extending the electronic operational range of a slow vehicle, such as a ship, by using a remotely SHIP controlled unmanned faster vehicle, such as an Unmanned Aerial Vehicle (UAV), and by way of example a remotely controlled drone. More particularly, the present invention relates to a method and system for extending the Electronic Warfare (EW) support for a ship.

An electronic warfare (EW) cross-eye system comprises two antennas separated a distance, d, a part, where d is much greater than the wavelength, λ, of a tracking signal emitted by a fire control radar (i.e., d >>λ). The EW cross-eye system further comprises a receive polarimeter for measuring the tracking signal and a second polarimeter for synthesizing the measured tracking signal to produce, for transmission, a jamming signal comprising a pair of inverted amplitude signals that are 180 degrees out of phase with each other.

An electronic counter measures solution. Jamming signals are emitted towards a threat to improve chances of survival for at least two vehicles, which are physically separated from one another, however associated with one another in a group. Each of the at least two vehicles receives a wireless time reference signal from an external resource. The vehicles exchange messages over a wireless data link. The messages pertain to usage of at least one electronic warfare resource in each vehicle. Based on the messages and the time reference signal the usage of at least one first electronic warfare resource in a first vehicle is coordinated with the usage of at least one second electronic warfare resource in a second vehicle, such that a particular type of jamming signal is emitted alternately either from the at least one first resource or from the at least one second resource, essentially without any overlaps or gaps in time. Thereby, a false target is created between the vehicles with respect to a weapon which operates in a so-called Home-on-Jam mode.

The invention relates to a distributed electronic counter measures solution, wherein jamming signals (JA; JB) may be emitted towards threats (X1, X2) from counter measures stations in multiple vehicles (A, B), which are physically separated from one another in order to improve the chances of survival the vehicles (A, B) as well as any other vehicles that are associated with these vehicles (A, B) in a group of vehicles. The vehicles in the group exchange messages (D) over a wireless data link (L), where the messages (D) sent from a particular station specify an availability status (Dres-status) for each electronic warfare resource in the station and a threat status (Dthr-status) registered by the station. A station in the group having a central planning function coordinates any jamming signals (JA; JB) emitted from the electronic warfare resources of the stations in the group, such that the resources are optimally used with respect to all of any registered threats (X1, X2). This coordination is based on estimated geometric interrelationships between the at least two stations in the group; estimated geometric relationships between the at least two stations in the group and at least one registered threat (X1, X2); and the respective resources of each station in the group.

The invention relates to the technical field of radar echo signal simulation. The embodiments specifically provide a radar echo signal simulation method and system. According to the radar echo signalsimulation method, radar transmission signals are received and are subjected to down-conversion processing twice; the modulation information of the radar transmission signals, the parameter information of a simulation target and the azimuth information of the simulation target are obtained through algorithm processing, and, finally digital signals carrying target information are synthesized; the digital signals carrying target information are converted into simulation signals and radar echo signals are emitted after two-time up-conversion processing. The radar echo signal simulation method does not need instruction of actual targets for simulation, thereby saving cost; the method can simulate all information of targets and can be directly applied to radar electronic warfare simulation tests or vehicle-mounted radar echo simulation tests, so that the performance of tested targets / systems can be tested comprehensively and accurately.

The invention provides a 180-degree broadband phase shifter on a passive chip, and the phase shifter comprises a balun and a broadband matched single-pole double-throw switch, and is characterized in that the difference of the phases of the two output ports of the balun is 180 degrees, and the broadband matched single-pole double-throw switch switches between the two output ports of the balun so as to realize the 180-degree broadband phase shifting; the broadband matched single-pole double-throw switch comprises a first metal oxide semiconductor (MOS) field effect transistor, a second MOS field effect transistor, a third MOS field effect transistor, a fourth MOS field effect transistor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor and a sixth resistor; and the gate of the first MOS field effect transistor is connected with a first control power supply through the first resistor, the gate of the second MOS field effect transistor is connected with a second control power supply through the second resistor, the gate of the third MOS field effect transistor is connected with a third control power supply through the third resistor, and the gate of the fourth MOS field effect transistor is connected with a fourth control power supply through the fourth resistor. According to the 180-degree broadband phase shifter on the passive chip, the broadband low-parasitic amplitude modulation and high-phase shift precision 180-degree phase shifting can be realized, and the phase shifter can be widely applied to electronic warfare radar, digital mobile communication, microwave and millimeter wave communication and other systems.

The invention relates to an electronic lock control system, a control method and an electronic failure removing method thereof, and aims to solve the technical problems that conventional like electronic locks are poor in energy-saving effect and difficult to unlock after failure. The control system comprises an electronic control part and a mechanical control part, and the design feature of the control system is that the electronic control part comprises a power supply and a control switch controlled by a signal source; the mechanical control part comprises an electromagnet, a mechanical lock and a lock cylinder switch acting while a mechanical key is inserted into the mechanical lock; the power supply, the control switch, the electromagnet and the lock cylinder switch are in a serial connection to form a control loop; the electromagnet and a lock cylinder of the mechanical lock are in interlocking under the electrifying condition; and in an initial state, the control switch is in a closure state, and the lock cylinder switch is in an off state. According to the electronic lock control system, the control method and the electronic failure removing method thereof, the structural principle is simple, the control mode is reliable, the power is saved, even though the power is used up, the mechanical lock can still be used for unlocking, so that the electronic lock control system, the control method and the electronic failure removing method thereof are suitable for being applied to control systems of various types of electronic locks or improvement of the control modes of the electronic locks.

A distributed and coordinated electronic warfare system is disclosed, which comprises a plurality of autonomous, geographically-distributed, mobile units (e.g., soldiers, vehicles, etc.), each of which carries an electronic warfare module. Each electronic warfare module comprises: a telecommunications transceiver for enabling the electronic warfare modules and their users to communicate with each other, and a threat-detection receiver for detecting potentially hostile radio signals, such as those that are used to detonate IEDs; and a jamming transmitter for transmitting sequences of electromagnetic pulses to interfere with potentially hostile radio signals, and an electronic warfare controller for coordinating the efforts of the electronic warfare modules.

The invention relates to a photoelectric warfare infield semi-physical simulation system based on a mechanical arm and belongs to the field of infield simulation and research. The system is used for realizing the full real-time dynamic semi-physical simulation, is reasonable in cost and is used for estimating the research and development on a foundation and onboard photoelectric warfare weapon system in wave bands such as visible light and medium / long wave infrared. The system comprises a guided missile guider, an interference laser emitter, a target simulation source and a launching pad, wherein the guided missile guider is hung on the mechanical arm; a linear motor is used for driving the mechanical arm to move on a cross beam; and the interference laser emitter and the target simulation source are fixed on the launching pad. A simulation interference system equivalent a laser divergence angle is used for performing real-time estimation on the tracking, the fighting time selection and the fighting performance of a laser warfare weapon after an infrared terminal guided missile attacks from a place 10km away. Meanwhile, the system provided by the invention is applied to other interference devices such as heat source and point source jammers for estimating an terminal guided section of an attacking missile.

The invention relates to the technical field of visual simulation, and discloses an electronic warfare visual simulation platform based on XML and a method thereof, wherein the electronic warfare visual simulation platform adopted by the method comprises: a visual simulation model generator, a model navigator, an operation display, a scene navigator, a scene data manager, and a network communication manager, the visual simulation model generator being connected to a first input end of the operation display through the model navigator, a second input end of the operation display being connected to an electronic warfare physical device, a data simulation platform, and a control computer of an external system through the network communication manager and Ethernet; and a third input end thereof being connected to the scene navigator, and an output end thereof being connected to the scene data manger. The invention can implement independent deployment of each component of the system, facilitating reuse of the electronic warfare visual simulation model and mutual operation, and reducing repetitive development of the electronic warfare simulation system. The invention has better openness, versatility and flexibility, and is adaptive to application requirements of different electronic warfare tests.

The invention relates to an electronic reader which comprises a processor, a display screen, a page turning control unit, a switching unit and a buffering memory, wherein the switching unit is used for switching on the connection of the processor or the page turning control unit with the display screen and the buffering memory; the processor responses to a user operation of opening a file and display the file on the display screen; the page content in a set page range is memorized in the buffering memory; the processor also controls the switching unit to the connection between the page turning control unit and the display screen and the connection between the page turning control unit and the buffering memory, and the processor automatically enters a sleep mode; and the page turning control unit receives a page turning command and carries out page turning control. The invention also provides an electricity-saving control method of the electronic reader. Because the processor is in a discontinuous sleep mode and the page turning control unit with relatively less electricity consumption is adopted for receiving and executing the page turning command in place of the processor when the processor is in the sleep mode, thus the electricity energy is saved.