33results about "Near-field transmission" patented technology

The present invention relates to a method for verifying a charging state of a wireless power receiving apparatus in the wireless power transmitting apparatus, and more particularly, to an apparatus and a method for efficiently performing and controlling wireless power transmission.

To this end, the present invention provides a wireless power transmitting method, wherein a standby state of determining whether at least one wireless power receiving apparatus is positioned within a wireless charge range of the wireless power transmitting apparatus and a power transfer state of transmitting power to the corresponding wireless power receiving apparatus when at least one wireless power receiving apparatus is detected in the standby state are provided, and the standby state includes a first standby state of periodically transmitting a weak detector signal and a strong detector signal and a second standby state in which at least one of a transmission period of the weak detector signal and a transmission period of the strong detector signal is different from that of the first standby state, the method including: determining any one state of the first standby state and the second standby state of the wireless power transmitting apparatus; and transmitting the weak detector signal and the strong detector signal based on the determined standby state, wherein the transmission period of the weak detector signal in the second standby state is longer than the transmission period of the weak detector signal in the first standby state.

The invention relates to the technical field of wireless communication, in particular to a method and a device of paring connection of equipment. The method and the device of the pairing connection of the equipment is used for solving the problems that a pairing operation process is verbose when short distance of information transmission is carried out by the equipment, and time of pairing is long. The method of the paring connection of equipment comprises detecting equipment in a preset range through short distance communication technology, reading corresponding identification information of the detected equipment, comparing read identification information and the corresponding identification information of beforehand selected equipment and judging whether the read identification information and the corresponding identification information of the beforehand selected equipment are consistent or not, and building up communication connection with the detected equipment when the read identification information and the corresponding identification information of beforehand selected equipment are consistent. Therefore, automatic pairing connection with the beforehand selected equipment is achieved without the need of manual search and lookup of bluetooth equipment by a user, efficiency of the pairing connection and user experience are improved.

An overhead entertainment system for a vehicle comprises a plurality of media sources outputting at least one of audio data and video data, and means for modulating the audio data and transferring the modulated audio data to a vehicle sound system, wherein the modulated audio data is capable of being transferred to the vehicle sound system via wired and wireless transmission. The overhead entertainment system also comprises means for wirelessly transmitting the video data to at least one display.

The invention discloses a positioning method and a positioning device based on Bluetooth. The method comprises the following steps of: transmitting a power setting instruction to target Bluetooth equipment, wherein the power corresponding to the instruction reduces gradually; obtaining a power threshold value when the target Bluetooth equipment is out of connection; and matching a preset communication distance mapping table according to the power threshold value, if matching, taking the corresponding distance value as the communication distance corresponding to the target Bluetooth equipment. By obtaining the communication distance from the target Bluetooth equipment, the identification error range of the position of the Bluetooth equipment is greatly reduced and the positioning precision is effectively improved.

A wireless energy transfer system may include a first layer of conductive material that may be positioned proximate to a second layer. The second layer of magnetic material may be positioned proximate to the first layer of conductive material and a third layer. The third layer may be positioned proximate to the second layer and a fourth layer, wherein the third layer may include a first resonator coil, wherein the first resonator coil may be configured to transfer wireless energy to a second resonator coil when the second resonator coil is proximate to the first resonator coil. The fourth layer may be positioned proximate to the third layer, wherein the fourth layer may include a plurality of conductive material.

The invention belongs to the technical field of communication and mainly relates to an electronic device and near field communication realizing data transmission between smart phones through sound. The invention provides a sound-based near field communication system and a method thereof. The main principle is that a prior loudspeaker and a prior sound pick-up of a smart phone or device are utilized fully and data communication of data information s realized through sound in a short distance. The main process includes steps of encrypting, signing or encrypting as well as signing data on a transmitting end; performing RS or BCH error correction of coding; transmitting sound through the loudspeaker after digital modulation; performing digital demodulation and then performing RS or BCH error detection of decoding after the sound is received by a receiving end ; decrypting, verifying signatures or decrypting as well as verifying the signatures; and data transmitted from the transmitting end is received. The main characteristic of the invention is that RS or BCH correcting codes are adopted for guaranteeing reliability of integral data transmission and a cryptographic technique is utilized for guaranteeing data safety.

The invention discloses a near field simulator. Near-field spherical wave-front simulation is realized based on compact-field de-focusing control. Through continuous adjustment of the de-focused irradiation of an excitation source on a reflection plane, equivalent spherical wave sources at different distances are simulated continuously, with the purpose of compactly realizing a near-field electromagnetic environment with large distance coverage to conduct a near-field simulation test on a radio system. The near field simulator can work in a more controllable natural environment or electromagnetic environment, and is conducive to improving the test conditions of electromagnetic simulation debugging, reducing the test cost and improving the test efficiency. The near field simulator is better than an external field largely affected by natural weather. The near field simulator can work at the position of a wider-range equivalent spherical wave source, and is conducive to dynamically and variably configuring a near-field wave-front required for test and conducting a simulation test on a more vivid and changeable near-field electromagnetic environment required. The near field simulator is better than a near field of which the transmitting and receiving distance is controlled directly.

Various aspects are directed to the detection of tampering, as may be applicable to retail goods and a variety of implementations. As may be consistent with one or more embodiments, an apparatus includes a loop conductor having first and second ends and contiguous conductive material extending in a loop between the ends. A detection circuit detects continuity of the loop conductor and characteristics of power that is provided to the loop conductor and is indicative of validity of the continuity detection. A communication circuit communicates a wireless signal indicative of the detected electrical characteristics, and an energy circuit powers the loop conductor, detection circuit and communication circuit via received wireless power. Other aspects are further directed to an interrogator that provides the wireless power and evaluates the wireless signal to detect tampering with the conductive loop and validity thereof.

The invention relates to a Bluetooth wireless communication based field-level Bluetooth communication monitoring module which is characterized by comprising a monitoring terminal with a Bluetooth wireless communication function, a Bluetooth wireless communication module, an embedded operational operator and an RS232 interface, the monitoring terminal with the Bluetooth wireless communication module is in connected communication with the Bluetooth wireless communication module through a Bluetooth 2.0 EDR (enhanced data rate) mode wireless communication protocol, and the Bluetooth wireless communication module is connected with a production equipment controller in a serial communicating connection manner. The Bluetooth wireless communication based field-level Bluetooth communication monitoring module is suitable for cabling communication by the aid of the RS232 interface and suitable for special wiring environments.

Disclosed is an IR data transmitting device having an ID that converts a RF signal received from a remote controller into an IR signal and transmits it to a device to be controlled. The IR data transmitting device having an ID includes a remote controller provided with an IR transmitter for transmitting an IR signal and a RF transmitter for adding a distinguishment ID allocated to the remote controller to a RF signal and transmitting the RF signal added with the ID; and a relay for receiving the RF signal added with the distinguishment ID from the RF transmitter of the remote controller to check the distinguishment ID, removing the distinguishment ID from the RF signal added with the distinguishment ID according to whether the distinguishment ID is identical to a previously stored set ID or not, and then converting the RF signal from which the distinguishment ID is removed into an IR signal to output the IR signal to a device.

The present invention discloses provides a method for fabricating an electromagnetic induction digitizer antenna board. The present invention is featured with advantages of low cost, satisfactory consistency of the product quality, high production yield, simplified process, and using well-developed equipment. The method includes the steps of: a. preparing a substrate that is convenient for being holed; b. providing a consecutive wire leading-out terminal at one side of the substrate; c. moving the substrate relative to the consecutive wire leading-out terminal along with a predetermined track of the electromagnetic induction coil of the induction digitizer antenna board, so that the consecutive wire leading-out terminal gets in surface-contact with the substrate, and configures the electromagnetic induction coil on the substrate; d. binding the conductive wire of the electromagnetic induction coil with the substrate at every predetermined interval.

A process for interfacing with an electronic device, such as to adjust control settings using a portable device, includes providing a short range wireless communication enabled device, and a portable short range wireless communication enabled device having a touch-screen display. An application is executed on the portable device to present a graphical user interface on the display. The graphical user interface includes icons or words corresponding with control of operational features of the electronic device. Commands entered through the graphical user interface are communicated to the electronic device via short range wireless communication (e.g., NFC), such as to adjust control settings on the electronic device.

Embodiments of the invention disclose a near field communication (NFC) circuit and a terminal. The NFC circuit comprises a feeding terminal, a signal shielding unit and an NFC control unit, wherein atarget antenna receives a first signal, and the signal shielding unit shields a redundant signal in the first signal, so as to obtain a first NFC signal; during information interaction between the NFCcontrol unit and a control unit in the terminal, if the NFC control unit receives the first NFC signal, a target signal is obtained according to the first NFC signal, the target signal is sent to thecontrol unit so as to enable the control unit to work according to the target signal; and if the NFC control unit receives a control signal sent by the control unit, the NFC control unit obtains a second NFC signal according to the control signal and radiates the second NFC signal through the target antenna. The target antenna is reused, an antenna preset on the terminal is not re-designed or re-arranged, so that the NFC function can be realized on the terminal more easily.

The invention discloses a Bluetooth 4.0 audio receiver with a power saving function, and a control method. A conventional Bluetooth sound device does not have a Bluetooth playing function, and a useralso wants to instantly play the music after a playing device with the Bluetooth function is connected with the sound device, and stops the playing after disconnecting the Bluetooth device, which requires the power of the sound device to be always in a connected state. However, the standby power of the sound device is bigger, and a lot of electricity is consumed. The receiver provided by the invention comprises a housing (1), and the interior of the housing (1) is provided with two clamping boards, wherein the interior of a groove between the two clamping boards is provided with a control board (4) in an inset manner. The left side of the control board is welded with an AC-DC isolating power supply (2) and a relay (7), and the right side of the control board is connected with a Bluetooth receiving module. The left side of the housing is provided with a sound device power interface (10) and a 3.5mm audio output interface (8). The left side of the housing is provided with a turn-off volume adjustment rotary button (9). The right side of the housing is provided with a power socket (6), and the top of the housing is provided with an LED lamp (3). The receiver provided by the inventionhas the power saving function.

The invention provides an inductive power transmitter, a receiver and a method of operation. A method of communication of information as to receiver coil type to an inductive power transmitter to enable different modes of operation of inductive power transmitters and/or inductive power transmitters utilizing such information is provided. An inductive power receiver may include a communications circuit for communicating with an inductive power transmitter to transmit information as to the receiver coil type. Transmitter coils of an inductive power transmitter may be driven in a first mode and also in a second mode if it receives receiver coil type information associated with the second mode. The power transmitter may include a controller configured to receive receiver coil type informationfrom an inductive power receiver and to drive a plurality of power transmitting coils in one of a plurality of modes depending on the receiver coil type. With bidirectional communication and configurability on both sides the transmitter controller and receiver controller may negotiate the modes of operation of the transmitter controller and receiver controller via the communications circuits.

An antenna module includes a wiring part including a second antenna wiring disposed to have a spiral shape on an insulating substrate and a first antenna wiring disposed in an internal region of the second antenna wiring and disposed in a solenoid structure; a first magnetic part disposed to be inserted into the center of the solenoid structure and having at least a portion exposed externally from the wiring part; and a second magnetic part coupled to the first magnetic part.

The magnetic field communication system for measuring the flutter of the turbine blade in accordance with an embodiment of the present disclosure includes a sensor module placed on an outer surface of the turbine blade to sense a signal on the flutter of the turbine blade; an interface converting the signal on the flutter sensed by the sensor module into a magnet field signal to transmit it to the outside of a casing surrounding the turbine blade; and an adaptor receiving the magnetic field signal to generate a power source of the system, and analyzing the magnetic field signal to determine the degree of the flutter of the turbine blade.

A wireless power transmission apparatus according to various embodiments of the present invention may comprise: a power provision circuit for providing direct current (DC) power; a first conductive pattern; a second conductive pattern; multiple first switches connected to one end of the first conductive pattern and one end of the second conductive pattern; multiple second switches connected to the other end of the first conductive pattern; multiple third switches connected to the other end of the second conductive pattern; and a control circuit, wherein the control circuit controls the multiple first switches and the multiple second switches to convert the DC power into first alternating current (AC) power and apply the first AC power to the first conductive pattern and control the multiple first switches and the multiple third switches to convert the DC power into second AC power and apply the second AC power to the second conductive pattern. Various other embodiments are possible.

Disclosed is a paperless medical bedside record list realizing method. According to the paperless medical bedside record list realizing method, a display card, a handheld modifier and a table-type modifier are utilized. The handheld modifier can be placed on a platform of the table-type modifier when being not in use at ordinary times. When information is recorded for the first time, the table-type modifier records information into the display card and updates data into a database, and the display card displays the recorded information and moves along with a patient or liquid medicine; when displayed content needs to be modified or updated, a worker can bring the handheld modifier to the place where the display card is located and update information, after the updating is completed, the handheld modifier is replaced on the table-type modifier to complete data uploading, and the table modifier stores and archives the data. The paperless medical bedside record list realizing method has the advantages that digitized and paperless recording of infusion information or hospitalization information is realized, since an ink screen does not need power supply for daily display, medical workers can complete digitization and data archiving during operation, paper is saved, and the possibility that the paper is maliciously obliterated by people is avoided.

A power receiving apparatus comprises a power receiving unit that receives first power or second power from a power transmission apparatus; and a control unit that (a) requests the power transmission apparatus to transmit the first power, (b) determines whether or not a battery is a genuine battery by using the first power transmitted from the power transmission apparatus, (c) requests the power transmission apparatus to transmit the second power, when the battery is not a genuine battery, and (d) notifies a user of a reason why the battery is not being charged by using the second power transmitted from the power transmission apparatus.

The invention discloses a Bluetooth transparent transmission module with a Type-C interface. The module comprises a Type-C device embedded in a wall. The Type-C device comprises an enclosure and an interface part movably arranged in the enclosure. The rear end of the interface part is equipped with a transmission line. A control circuit board is arranged in the interface part. The control circuit board is arranged in a protection shell. A Type-C processor and a data transmission module for transmitting data are arranged on the control circuit board. According to the module, various interfaces are integrated on the module; the integral size is small; the Bluetooth module is also integrated on the module, therefore, the problem that the transmission distance of the Bluetooth is not long because of power consumption is solved; a lithium battery can be saved; the environment and environment resources are protected greatly; and through using the Type-C processor to control the power supply and signals, stated current and signals are output for communication, Bluetooth or other signals are converted into wire digital signals, and the wire digital signals are output to an intelligent terminal device such as a computer.

The invention discloses a battery power supply system for a trolley of an automatic building delivery system. Vertical guide rails are arranged outside/in the building, and a trolley is matched on the guide rail, and the trolley can run along the guide rail; There is a cargo box, the cargo box is provided with a cable plug for charging, and also includes a charging device, the charging device includes a charging horizontal rail, the charging vertical rail is provided with a charging vertical rail, and the charging vertical rail can be connected with the vertical rail. By setting the battery power supply system, it can provide energy for the delivery trolley to ensure the normal operation of the delivery system; by setting the charging system, it can charge the battery, and by setting a dedicated charging position, the positioning of the delivery system trolley can be realized , improve the operating efficiency of the system; by setting the receiving coil and the sending coil, the information transmission between the trolley and the pick-up door can be realized when the trolley is waiting for unloading.

The invention discloses a dual-frequency antenna communication system having a wireless charging function. The dual-frequency antenna communication system comprises a first electronic device and a second electronic device. A first antenna, a first regulating circuit, a first branch circuit and a first wireless circuit are arranged at one side of the first electronic device; the two ends of the wireless circuit are connected with the first regulating circuit by the first branch circuit; and one end, far away from the first wireless circuit, of the first regulating circuit is connected with the first antenna. The dual-frequency antenna communication system has the following beneficial effects: When the antenna and other structures are integrated into the same device, sensitivity of an antenna error and other problems can be filtered effectively and thus an expected performance level is realized when the antenna error and other problems are integrated into the one device, so that stability of the dual-frequency antenna communication system having a wireless charging function is improved.