47 results about "Rf communication" patented technology

Embodiments are described herein for updating communication parameter sets between a peripheral medical monitoring device and a central medical monitoring device. The central medical monitoring device may identify a triggering event for updating a communication parameter set related to RF communications between the peripheral medical monitoring device and the central medical monitoring device. The central medical monitoring device may collect system specification information related to at least one of the peripheral medical monitoring device or the central medical monitoring device and transmit a request for the updated communication parameter set that includes at least a portion of the system specification information. The central medical monitoring device may receive a response comprising the updated communication parameter set that is compatible with the at least the peripheral medical monitoring device or the central medical monitoring device having the at least the portion of the system specification information.

A controllable electrical outlet may comprise a resonant loop antenna. The resonant loop antenna may comprise a feed loop electrically coupled to a radio-frequency (RF) communication circuit and a main loop magnetically coupled to the feed loop. The controllable electrical outlet may comprise one or more electrical receptacles configured to receive a plug of a plug-in electrical load and may be configured to control power delivered to the plug-in electrical load in response to an RF signal received via the RF communication circuit. The RF performance of the controllable electrical outlet may be substantially immune to devices plugged into the receptacles (e.g., plugs, power supplies, etc.) due to the operation of the resonant loop antenna. For example, degradation of the RF performance of the controllable electrical outlet may be less when the controllable electrical outlet includes the resonant loop antenna rather than other types of antennas.

An approach to obtain low latency association of the audio clock in a smartphone with an incoming RF message is to use an interrupt driven routine, where the receipt of the RF message preamble generates an interrupt that reads the audio clock counter since the start of the audio session. In some embodiments such an approach may be implemented on the specialized processing cores found in smartphones that control RF communication, sensor or audio processing.

An antenna apparatus and method of operating the antenna apparatus, can include a helical antenna comprising a helical portion raised from a printed circuit board to optimize gain and bandwidth, wherein the helical portion incorporates a limited number of turns, which facilitate control over the dimensions of the helical antenna. An antenna support can be provided, which can maintain dimensional consistency with respect to the helical antenna. The antenna support can facilitate achievement of target performance parameters for the antenna apparatus. In addition, the elevated helical portion can be configured to enhance the gain and the bandwidth without compromising the overall dimensions of the helical antenna. In some embodiments, the helical antenna may be formed from plastic.

A signal restructure unit for radio frequency (RF) antenna systems includes four ports and a signal routing circuit. The signal routing circuit receives RF signals at input ports and provides phase-controlled outputs to antenna ports. When receiving sum signals, the unit provides in-phase restructured signals for common-mode antenna operation. When receiving difference signals, the unit provides anti-phase restructured signals for differential-mode antenna operation. The signal routing circuit may be implemented as a rat-race coupler with transmission line segments or as discrete circuit elements including inductors and capacitors. An RF communication system incorporates the signal restructure unit with digital processing circuits, transceivers, and antennas to achieve MIMO operation from a single antenna structure. The system provides improved isolation while reducing the antenna size. The restructure unit enables reconfigurable MIMO operation with enhanced performance for wireless communication applications.

The invention discloses an unmanned aerial vehicle relay FSO and RF communication method and system based on hybrid reinforcement learning. The method comprises the steps of obtaining a hybrid RF and FSO unmanned aerial vehicle relay joint optimization problem; expressing a hybrid RF and FSO machine-inorganic relay joint optimization problem as a finite time domain Markov decision process; and solving the finite time domain Markov decision process to obtain a joint optimization strategy of the FSO, the RF link switching, the power distribution and the three-dimensional trajectory of the unmanned aerial vehicle. According to the method, an efficient solution is provided for relay secret communication of the unmanned aerial vehicle, deep coupling optimization of discrete link switching and continuous power and trajectory control is realized, and the technical bottleneck that hybrid decisions are difficult to process in a traditional method is broken through.

The present disclosure relates to a remote control device and an image display apparatus including the same. A remote control device according to an embodiment of the present disclosure includes: a plurality of keys; an IR module configured to perform IR communication in response to a part of the plurality of keys; and an RF module configured to perform RF communication in response to another part of the plurality of keys, and the RF module transmits wireless channel information to an image display apparatus at a first interval, and when pairing with the image display apparatus is not completed, transmits the wireless channel information at a second interval less than the first interval. As a result, wireless pairing can be stably performed in response to a surrounding communication environment.

The invention belongs to the technical field of wireless system application, and particularly relates to a radio frequency-based wireless signal test platform system and a building method thereof, and the system comprises an Android master control terminal, a radio frequency communication module and an environment sensing unit; the android master control terminal carries an industrial-grade android equipment operating system, an integrated presentation layer, a business logic layer and a data access layer; the radio frequency communication module is connected with the Android master control terminal through a serial interface and is used for dynamically configuring frequency bands, spreading factors and bandwidth parameters; an environment database is established by setting an Android master control terminal, a radio frequency communication module and an environment sensing unit, adaptive communication capability testing of various radio frequency modules is realized, wireless signal data can be visually tested anytime and anywhere by using an established testing platform and environment data, and dependence on a traditional darkroom and a frequency spectrograph is avoided; and self-adaptive setting of frequency bands, spreading factors and bandwidths of the module in different environments is realized through an existing environment database.

A radiofrequency (RF) system may comprise a duplexer or multiplexer, e.g., when the transmitted signal frequency is different from the receiving frequency in a RF communication system, a duplexer may combine the transmitter and the receiver into the same antenna. In other possible RF communication systems, where the transmit (Tx) and receive (Rx) paths utilize the same frequencies (which are duplexed in time domain), a multiplexer may be used to connect different transmitters, receivers and / or transceivers that are using different frequencies, into one common / antenna port. A multiplexer may be used to share an antenna between multiple transceivers at different frequencies. In some embodiments, the multiplexer may be tunable to different frequencies during operation.

A communication device and a vehicle control device including the same according to an embodiment of the present disclosure include: an RF communication device configured to receive vehicle messages from a plurality of adjacent external vehicles based on an RF signal; and a processor configured to perform filtering of the vehicle messages based on road type information, receiver sensitivity information of the RF signal, wheel direction information, and speed information. Accordingly, the vehicle messages received from the adjacent vehicles may be efficiently filtered.

Described herein are methods, devices, and systems that enable a remote non-implantable device (RNID) to send commands to a leadless pacemaker (LP) implanted within a patient. The RNID provide commands to a local non-implantable device (LNID) over one or more communication networks, and the LNID sends the commands to a second implantable device (SID) by transmitting radio frequency (RF) communication signals, which include the commands, using an antenna of the LNID. After receiving the commands from the LNID, by receiving RF communication signals that include the commands using an antenna of the SID, the SID transmits conductive communication signals, which include the commands, using electrodes of the SID. The LP receives the commands from the SID by receiving the conductive communication signals, which include the commands, using electrodes of the LP, and the LP performs command responses based on the commands that originated from the RNID.

We disclose a novel methodology and wireless network for covert wireless RF communications between an agent device and a client device in the presence of an adversary device which attempts to detect the existence of the transmission of the RF communication between the agent and client. The methodology comprises: providing an intelligent reflecting surface (IRS) to reflect wireless radio frequency (RF) communication signals transmitted from the agent device to the client device, the IRS comprising a two-dimensional array of individually controllable RF reflecting elements; providing a jamming device which radiates jamming signals with random power to confuse the adversary device in detecting the existence of the communication between the agent device and the client device; and establishing a covert RF communication link between the agent device and the client device using the IRS that optimizes the transmission probability, transmit power at an agent, and the reflection matrix of an IRS for covert RF communications.

The invention is suitable for the technical field of electric power communication, and relates to an undisturbed topology identification method based on common inductance calculation control, a medium and a terminal.The undisturbed topology identification method comprises the steps that S10, signal quality grouping is conducted, specifically, initial grouping of nodes and meter box and branch relation identification are achieved by analyzing SNR values and RSSI values between the nodes through PLC and RF communication functions of a dual-mode communication module; s20, high-precision clock ranging layering: based on high-precision clock synchronization of a dual-mode communication module, calculating a node distance through a signal propagation time difference, and realizing device hierarchy division; s30, electric parameter analysis: identifying a connection relation of equipment in the box by collecting and analyzing current and voltage characteristics; and S40, integrating the multi-dimensional data in S10 to S30 by the dual-mode communication module to generate a complete topological structure. The low-voltage transformer area topology identification method is simple in process and convenient to operate, effectively improves the accuracy and efficiency of low-voltage transformer area topology identification, and provides key technical support for source network load storage collaborative management of the low-voltage transformer area.

This invention relates to the field of smart home control technology, and specifically discloses a natural wake-up system based on offline voice recognition control and audio-visual time management. The system includes: an offline voice recognition module that recognizes user voice commands in an offline state; a main control module that calculates a first personalized influence factor of smart home control parameters on the user's wake-up process and a second personalized influence factor of the user's specified wake-up time based on a home control parameter matrix, a wake-up efficiency vector, and a specified wake-up time vector, and then combines AI with user voice commands to generate an audio-visual time management strategy; a time management module that records real-time time; and an RF communication module and an infrared signal transmission module that send control signals to smart home devices capable of receiving RF and infrared control signals, respectively, according to the strategy and real-time time. An audio playback module that plays built-in audio files through a speaker according to the strategy creates a more comfortable and intelligent wake-up environment, improving the user's wake-up experience and system satisfaction.

This utility model discloses an intelligent security host, comprising: a main body shell, a main body bottom shell hinged to one end of the main body shell, a PVC button panel and an SOS button mounted on the main body shell, a PCB main board, a ball bearing pressure rod micro switch, a speaker, a power supply, and a rotary latch lock for locking the main body shell and the main body bottom shell together, all mounted between the main body shell and the main body bottom shell. The PCB main board includes a main control module, an RF communication module, an alarm processing module, a 4G communication module, a status indication module, an LCD display module, a storage module, and a key input module. The corresponding terminals of the main control module are electrically connected to the corresponding terminals of the RF communication module, alarm processing module, 4G communication module, status indication module, LCD display module, storage module, key input module, SOS button, and power supply. This intelligent security host integrates alarm processing, RF communication, 4G communication, power management, status indication, and storage functions into a compact host, reducing system complexity and improving system reliability and stability.

The invention discloses a multi-terminal synchronous data acquisition and transmission method based on radio frequency communication, belongs to the technical field of radio frequency communication, and aims to solve the problems of inaccurate channel quality assessment, undifferentiated threshold formulation and low transmission scheduling efficiency. Comprising the steps that a radio frequency channel multi-dimensional monitoring index set and a transmission demand feature vector are constructed, correlation is analyzed, a self-adaptive weight coefficient library is constructed, and after a terminal collects data, weights are matched, and a channel quality comprehensive score is calculated; the terminal reports a score and a feature vector, dynamically calculates a group reference threshold value and a terminal personalized threshold value after statistical clustering, marks the standard to be transmitted after terminal comparison, and triggers cache if the standard is not reached; the cache data is locally and temporarily stored, continuously checked and evaluated and reported after reaching the standard, the center node calculates the transmission priority by integrating multiple factors and allocates exclusive time slots, and the terminal completes sending according to an instruction; personalized evaluation of channel quality and differential adaptation of threshold values are realized, and the stability, orderliness and overall efficiency of multi-terminal data transmission are improved.

A communication device and a vehicle control device including same according to an embodiment of the present disclosure comprise: an RF communication unit for receiving a vehicle message from a plurality of adjacent external vehicles on the basis of an RF signal; and a processor for filtering the vehicle message on the basis of road-type information, reception-sensitivity information of the RF signal, wheel-direction information, and speed information. Accordingly, it is possible to efficiently filter a vehicle message received from an adjacent vehicle.

In some aspects, devices, systems, and methods described herein include an energy harvesting device including a housing, a first magnet and / or spring disposed at a first end of the housing, a second magnet and / or spring disposed at a second end of the housing, a free magnet, the free magnet is configured to oscillate between one or more turns of coils in response to vibrations of the housing, which results in induction of a voltage between terminals of each turn of wire. In some aspects, the terminals of each turn of wire may be coupled to a passive energy harvesting circuit configured to rectify / filter a voltage generated by the device, store energy in a passive storage component (e.g., a capacitor), and store energy in the passive storage component. And transmitting (e.g., via RF communication) information about the vibrations to the user device using the stored energy.

This invention relates to the field of radio frequency (RF) communication technology, and discloses a control method, apparatus, device, storage medium, and card reader for RF communication. The RF communication control method includes: monitoring changes in a sensing signal at preset time intervals; acquiring sensing signal strength information when the sensing signal changes; analyzing the signal quality of the sensing signal based on the sensing signal strength information to obtain a target signal-to-noise ratio (SNR); determining a polling detection threshold based on the target SNR; acquiring a real-time sensing signal; determining a target judgment index based on the real-time sensing signal and a preset reference value; comparing the target judgment index with the polling detection threshold; and polling the electronic tag based on the target comparison result to control the RF communication. This invention improves the accuracy of triggering polling by determining the polling detection threshold through the SNR.

This invention discloses a cognitive radio frequency (RF) signal digital fusion processing method, belonging to the fields of RF communication, software-defined radio, and radar signal processing technology. Based on a star-shaped decoupled architecture of "RF front-end - fusion processing center - digital processing back-end," this method achieves unified access and resource sharing of multiple heterogeneous RF front-ends through multi-source fusion access scheduling; adaptive analog conditioning regulates levels and bandwidth; end-to-end synchronous synchronization establishes a unified timing reference for the entire process; synchronous digitization and digital domain fusion processing complete signal standardization conversion; and intelligent routing and multi-protocol adaptation enable fusion distribution of multiple types of digital back-ends. This method fundamentally solves the pain points of traditional systems, such as high coupling, weak multi-source fusion capability, poor compatibility, low resource utilization, and insufficient synchronization, and can be widely applied to general signal processing scenarios such as communication, spectrum monitoring, radar detection, and electronic reconnaissance.

Described herein are systems and methods for assigning and managing RF communication links between ground-based stations and airborne assets. In one or more examples, a pilot or other user of the systems and methods described herein can generate and transmit a flight plan to a spectrum management system. Additionally, or alternatively, the pilot or use can also transmit additional information to the spectrum management system such as the type of aircraft / radio configuration that they will be using during a flight, and a request for a certain amount of data throughput that they want to have access to during the flight. In one or more examples, upon receiving the flight plan and / or information from the pilot, the spectrum management system can proceed to match the user's desired flight plan with one or more RF spectrum resources for the airborne radio of the pilot's UAV to use during their planned flight.

This disclosure relates to battery packs and wireless communication devices, as well as wireless communication methods for battery packs. The technical problem to be solved is to propose a mechanism that enables a main battery management system (BMS) and multiple slave BMSs to perform radio frequency (RF) communication via repeaters based on an active phased array antenna system. To this end, this disclosure aims to provide a configuration that allows the collection of battery pack status and the transmission of corresponding control signals via repeaters based on an active phased array antenna system, wherein the repeaters perform RF communication between multiple slave BMSs and the main BMS.

A fire protection system according to an embodiment of the inventive concept includes a plurality of sensors having different address values, detecting fire occurrence, generating a fire alarm, and performing Radio Frequency (RF) communication with each other, a first server configured to perform RF communication with each of the plurality of sensors, and a second server configured to receive big data from the outside and communicate with the first server, wherein the second server includes a data collection unit configured to collect sensor data measured from each of the plurality of sensors and the big data, a data extraction unit configured to extract fire data based on information collected by the data collection unit, and a complex event processing unit configured to process complex events based on the fire data.

In connection with an RF communication system, example aspects relate to a method for use in a communication system in which a first system (e.g., 802.11) is asynchronous based and susceptible to interference from a second system (e.g., synchronous based LTE-CV2X). Such interference is due to overlapping spectrum used by the first and second systems. To mitigate the interference problem, an example method extends time for a message in the first system based on information about occupancy of the channel, and transmits the message relative to an end of a recurring transmission allocated for use by the second system.

The invention discloses a quantum computing-oriented low-temperature broadband CMOS (Complementary Metal Oxide Semiconductor) voltage-controlled oscillator, which belongs to the technical field of CMOS integrated circuits and comprises a Class-C dual-core push-pull cross coupling amplification circuit, a dual-mode resonant inductance network, a symmetric inductance mode switching circuit and a digital control capacitor array. The Class-C dual-core push-pull cross-coupling amplification circuit realizes current multiplexing through alternate conduction of upper and lower symmetrical transistors, reduces power consumption and inhibits phase noise. The dual-mode resonant inductor network and the symmetric inductor mode switching circuit cooperatively switch a low-frequency / high-frequency mode, so that the frequency coverage range is expanded; the digital control capacitor array adjusts equivalent capacitance and compensates frequency deviation caused by inductance change at low temperature. The oscillator is suitable for scenes of quantum calculation control, low-temperature radio frequency communication, high-precision frequency synthesis and the like.

Systems, devices, and techniques describe presenting information regarding noise that may be interfering with communications. For example, a system may include communication circuitry configured to communicate with a first device via a radio frequency (RF) communication format and sense signals indicative of one or more second devices operating via the RF communication format. The system may also include processing circuitry configured to determine, based on the signals, a connection metric representative of communication via the RF communication format and output, for presentation to a user of the system, feedback based on the connection metric.

A processor of an electric meter receives a measurement signal corresponding to an input electricity, initiates a first counter at a first edge of a first pulse-per-second (PPS) signal of an RF communications system, and stops the first counter at a first edge of the measurement signal. The processor determines a first counter value from the first counter and initiates a second counter at a first edge of a second PPS signal of the RF communications system. The processor stops the second counter at a second edge of the measurement signal. The processor also determines a second counter value from the second counter, determines an actual sampling frequency of the measurement signal, and compares the actual sampling frequency of the measurement signal to a predetermined sampling frequency. The controller also performs a mitigation action in response to determining that the actual sampling frequency differs from the predetermined sampling frequency.

A radiofrequency (RF) system may comprise a duplexer or multiplexer, e.g., when the transmitted signal frequency is different from the receiving frequency in a RF communication system, a duplexer may combine the transmitter and the receiver into the same antenna. In other possible RF communication systems, where the transmit (Tx) and receive (Rx) paths utilize the same frequencies (which are duplexed in time domain), a multiplexer may be used to connect different transmitters, receivers and / or transceivers that are using different frequencies, into one common / antenna port. A multiplexer may be used to share an antenna between multiple transceivers at different frequencies. In some embodiments, the multiplexer may be tunable to different frequencies during operation.

Embodiments of systems, apparatuses, articles of manufacture, methods, and computer program products for remotely controlling a media device are disclosed herein. Embodiments include an apparatus comprising a radio frequency (RF) communication chip, a memory, and at least one processor coupled to the RF communication chip and the memory. The at least one processor is configured to receive an electronic signal indicative of a user command and generate, based on the electronic signal, an action frame data packet configured to instruct a media device to perform a function associated with the user command. Subsequently, the at least one processor is configured to transmit, using the RF communication chip, the action frame data packet to the media device.