50 results about "Inductive transfer" patented technology

A system and method is provided for the inductive transfer of electric power between a substantially flat primary surface and a multitude of secondary devices in such a way that the power transfer is localized to the vicinities of individual device coils. The contact free power transfer does not require precise physical alignment between the primary surface and the secondary device and can allow the secondary device or devices to be placed anywhere and in arbitrary orientation with respect to the primary surface. Such power transfer is realized without the need of complex high frequency power switching network to turn the individual primary coils on or off and is completely scalable to almost arbitrary size. The local anti-resonance architecture of the primary device will block primary current from flowing when no secondary device or devices are in proximity to the local RF power network. The presence of a tuned secondary device detunes the local anti-resonance on the primary surface; thereby enable the RF power to be transferred from the local primary coils to the secondary device. The uniformity of the inductive coupling between the active primary surface and the secondary devices is improved with a novel multi-pole driving technique which produces an apparent traveling wave pattern across the primary surface.

A programmable security system and method for protecting an item of merchandise includes a programming station, a programmable key and a security system. The programming station generates a security code and communicates the security code to a memory of the programmable key. The programmable key initially communicates the security code to a memory of the security device and subsequently operates the security device upon a matching of the security code in the memory of the security device with the security code in the memory of the programmable key. The programmable key may also transfer power via electrical contacts or inductive transfer from an internal battery to the security device to operate a lock mechanism. The security code may be communicated by wireless infrared (IR) systems, electrical contacts or inductive transfer. A timer inactivates the programmable key and / or the security device after a predetermine period of time. A counter inactivates the programmable key after a predetermined maximum number of activations.

A method and apparatus for hands free inductive charging of batteries for an electric vehicle is characterized by the use of a transformer having a primary coil connected with a charging station and a secondary coil connected with a vehicle. More particularly, the when the vehicle is parked adjacent to the charging station, the primary coil is displaced via a self alignment mechanism to position the primary coil adjacent to the secondary coil to maximize the inductive transfer of charging current to the secondary coil. The self alignment mechanism preferably utilizes feedback signals from the secondary coil to automatically displace the primary coil in three directions to position the primary coil for maximum efficiency of the transformer.

An electronic key including an internal power source is provided for transferring electrical power to a merchandise security device to operate a mechanical lock mechanism. In one embodiment, the key transfers power to the device via electrical contacts disposed on a transfer probe of the electronic key and corresponding electrical contacts disposed within a transfer port of the device when the transfer probe engages the transfer port. In another embodiment, the key transfers power to the device via inductive transfer as a result of passing an electrical current through an inductive coil disposed within the transfer probe to generate a magnetic field in the vicinity of a corresponding inductive coil disposed within the transfer port and thereby induce an electric current in the inductive coil of the device. In other embodiments, the electronic key is programmed with a security code and the key initially programs the merchandise security device with the security code and subsequently determines whether the security code of the key matches the security code of the device to permit the key to transfer power to the device.

A principled, probabilistic approach to meta-learning acts as a go-between for a ‘black-box’ image annotation system and its users. Inspired by inductive transfer, the approach harnesses available information, including the black-box model's performance, the image representations, and a semantic lexicon ontology. Being computationally ‘lightweight.’ the meta-learner efficiently re-trains over time, to improve and / or adapt to changes. The black-box annotation model is not required to be re-trained, allowing computationally intensive algorithms to be used. Both batch and online annotation settings are accommodated. A “tagging over time” approach produces progressively better annotation, significantly outperforming the black-box as well as the static form of the meta-learner, on real-world data.

The invention relates to a device for the inductive transfer of electric energy from a stationary unit comprising at least one primary inductance to a vehicle that is adjacent to said unit and has at least one second inductance. The stationary unit or the vehicle has a device for detecting the presence of an object in a predetermined area that covers at least the area lying between the primary inductance and the second inductance during the inductive energy transfer. The detection device has at least one contactless sensor and an evaluation unit that is connected to the sensor. At least the sensor of the detection device is integrated into or mounted on the same housing as the primary or secondary coil of the energy transfer device. The sensor can be an ultrasonic sensor, radar sensor, infra-red sensor or an electric image sensor.

The invention discloses a far infrared pedestrian detection method for changed scenes. A sample extension target data set is screened out of auxiliary data on the basis of the Boosting-style inductive transfer learning algorithm DTL Boost. At first, a sample importance measurement model based on the k-nearest neighbor is utilized for evaluating the similarity between the auxiliary data and the target data, and corresponding initial weights are distributed for different samples in the auxiliary data. In the training process, the prediction inconsistency degree of member classifiers is explicitly defined, iterative updating is carried out on the current weights of the auxiliary data and the target data sample through the prediction error rate of the current member classifiers, a sample extension training set with the positive transfer ability is screened out of the auxiliary data, and the different member classifiers are encouraged to learn different parts or aspects of the target data. In this way, an integrated classifier with the stronger generalization ability is obtained through training, and the robustness of pedestrian detection in the new scene is enhanced.

A programmable security system and method for protecting an item of merchandise includes a programming station, a programmable key and a security system. The programming station generates a security code and communicates the security code to a memory of the programmable key. The programmable key initially communicates the security code to a memory of the security device and subsequently operates the security device upon a matching of the security code in the memory of the security device with the security code in the memory of the programmable key. The programmable key may also transfer power via electrical contacts or inductive transfer from an internal battery to the security device to operate a lock mechanism. The security code may be communicated by wireless infrared (IR) systems, electrical contacts or inductive transfer. A timer inactivates the programmable key and / or the security device after a predetermine period of time. A counter inactivates the programmable key after a predetermined maximum number of activations.

A method and a circuit arrangement for the inductive transfer of energy with an oscillator and a device to detect the inductive load of the oscillator, and to modify a damping element in the oscillator depending on the load of said oscillator.

The present invention relates to a device for the contact-free inductive transfer of electrical energy from a first, preferably stationary system of a shifting device into a second system of the shifting device, which can be moved relative to the first system, comprising a magnetic circuit of a primary core, which is assigned to the first system and onto which a primary coil is wound, and a secondary core, which is assigned to the second system and onto which a secondary coil is wound. The secondary core is arranged so as to be capable of being shifted relative to the primary core along a shifting path, which preferably runs parallel to a shifting path of the shifting device. The primary core extends at least along the entire length of the shifting path. According to the invention, provision is made for the primary core to comprise at least one primary core gap, which is embodied along the entire longitudinal extension of the primary core. The invention further relates to a shifting device, in particular a linear shifting device, comprising such an energy transfer device as well as to a method for operating such a device.

The invention relates to an inductive radar high-resolution range profile recognition method based on deep transfer learning, which relates to radar signal processing. The method includes preprocessing of a real target signal and aided simulation data; selection and optimization of a deep model; application of an inductive transfer strategy in deep transfer learning. Aiming at the difficulty of acquiring complete high-resolution range profile data, a target recognition framework based on deep transfer learning is proposed, which can effectively improve the recognition performance of radar high-resolution range profile with small sample size and incomplete attitude. Based on the transfer learning in deep learning and machine learning, the method is practical and portable, and can meet the needs of weak supervised learning in most small samples and incomplete situations.

The invention, which belongs to the field of electronic manufacturing, discloses a micro device transfer apparatus, transfer system and transfer method, thereby solving problems of low transfer efficiency and high error rate in the prior art. The invention provides a micro device transfer apparatus, transfer system and transfer method. The micro device transfer apparatus comprises a micro device transfer box, a conversion mechanism, and a cleaning mechanism. The micro device transfer box is used for storing a micro device and transferring the micro device to a sensing device of the conversionmechanism. The conversion mechanism includes the sensing device and a rotating writing wheel in opposite to the sensing device; the micro device is transferred by using an electric field inductive transfer technology; and the micro device arranged on the sensing device is transferred to a transfer substrate. The cleaning mechanism is used for recycling micro devices that are not transferred on thesensing device. The massive transferring of micro devices is realized by using the electric field inductive transfer technology. The massive transferring of micro devices is realized with high efficiency and accuracy.

A method and apparatus for hands free inductive charging of batteries for an electric vehicle is characterized by the use of a transformer having a primary coil connected with a charging station and a secondary coil connected with a vehicle. More particularly, the when the vehicle is parked adjacent to the charging station, the primary coil is displaced via a self alignment mechanism to position the primary coil adjacent to the secondary coil to maximize the inductive transfer of charging current to the secondary coil. The self alignment mechanism preferably utilizes feedback signals from the secondary coil to automatically displace the primary coil in three directions to position the primary coil for maximum efficiency of the transformer.

The invention relates to a transmission coil (10) configured for inductive energy transfer, comprising a carrier (17), a coil arrangement (11) having a plurality of turns (12), and a capacitance. It is thereby provided that the capacitance is formed of a plurality of capacitors (22), wherein each capacitor (22) is assigned to an individual turn (12) or to a group of at least two turns (12) of the coil arrangement (11), and together with the coil arrangement, the capacitors (22) are arranged on the carrier (17). The invention further relates to a stationary charging station and to a vehicle, each comprising such a transmission coil (10), and to a system for the inductive charging of vehicles. No drawing text to be translated

Systems and methods are disclosed that are configured to access a database that includes a list of members of a first group, a list of members of a second group, and ratings for at least some of the members of the second group. The ratings are attributed to the members of the first group. A machine learning training set is built for a particular member of the first group. The training set includes class labels corresponding to the particular member's ratings for the members of the second group, and features that include supplied and predicted ratings from at least a subset of processed members of the first group. A predictor for the particular member of the first group is trained based on the machine learning training set. The predictor corresponding to the particular member is used to generate predicted ratings for one or more members of the second group the particular member has not rated.

An electronic key including an internal power source is provided for transferring electrical power to a merchandise security device to operate a mechanical lock mechanism. In one embodiment, the key transfers power to the device via electrical contacts disposed on a transfer probe of the electronic key and corresponding electrical contacts disposed within a transfer port of the device when the transfer probe engages the transfer port. In another embodiment, the key transfers power to the device via inductive transfer as a result of passing an electrical current through an inductive coil disposed within the transfer probe to generate a magnetic field in the vicinity of a corresponding inductive coil disposed within the transfer port and thereby induce an electric current in the inductive coil of the device. In other embodiments, the electronic key is programmed with a security code and the key initially programs the merchandise security device with the security code and subsequently determines whether the security code of the key matches the security code of the device to permit the key to transfer power to the device.

The invention relates to a device for detecting and monitoring damage to races or adjacent regions of bearing rings (1, 2, 3) of anti-friction bearings. The device includes a measuring device, disposed in the anti-friction bearing chamber, having a sensor and structure for supplying sensor measurement data to the outside. The device has an energy source, which is also disposed in the anti-friction roller bearing chamber and which comprises a first coil (16) for the measuring device and a second coil (18) disposed outside the anti-friction bearing chamber and destined for inductive transfer of electrical energy to the first coil (16). The second coil (18) extends only over a part of the bearing circumference and the energy source comprises an energy accumulator (19) connected to the first coil (16).

The invention provides a hybrid circuit breaker possessing a bridge type induction transfer structure and a usage method thereof. The circuit breaker comprises a main current circuit, an overvoltage limiting circuit and a transfer current circuit. The main current circuit, the overvoltage limiting circuit and the transfer current circuit are connected in parallel. An inductive transfer circuit of the transfer current circuit comprises an inductive transfer inductor, an inductive transfer capacitor and an inductive transfer branch power semiconductor device which are connected in series. The transfer current circuit also comprises a bridge circuit. The bridge circuit comprises a main loop inductor. The main loop inductor and the inductive transfer inductor are coupled so as to form a mutual inductor. In the invention, rapid current disconnection can be realized, and a control size and manufacturing cost of the circuit breaker can be effectively reduced. The inductive transfer circuit is used to realize rapid current transfer. A main loop capacitor does not need precharging. Isolation of a secondary charging circuit and a main loop is realized, a transfer speed is fast and disconnection reliability is high.

A device for inductive transfer of electric energy from a stationary unit including at least one primary inductance to a vehicle that is adjacent to the unit and has at least one secondary inductance. The stationary unit has a device for detecting the presence of an electrically conductive object in a predetermined area that borders the primary inductance. The area can be between the primary and secondary inductance during the inductive energy transfer. The device has at least one measuring inductance, a measuring unit for measuring the impedance of the measuring inductance and an evaluation unit connected to the measuring unit. Preferably, the device is equipped with a plurality of measuring inductances which form a regular two-dimensional arrangement extending approximately in one plane, the plane lying perpendicular to the main direction of the magnetic field that is generated by the primary inductance during operation.

The invention relates to a device for the inductive transfer of electric energy from a stationary unit comprising at least one primary inductance to a vehicle that is adjacent to said unit and has at least one second inductance. The stationary unit or the vehicle has a device for detecting the presence of an object in a predetermined area that covers at least the area lying between the primary inductance and the second inductance during the inductive energy transfer. The detection device has at least one contactless sensor and an evaluation unit that is connected to the sensor. At least the sensor of the detection device is integrated into or mounted on the same housing as the primary or secondary coil of the energy transfer device. The sensor can be an ultrasonic sensor, radar sensor, infra-red sensor or an electric image sensor.

A sensor apparatus for a battery cell of an electrical energy reservoir is provided, which battery cell has a housing. The sensor apparatus has: a sensing device for sensing sensor data with regard to the battery cell, which sensing device is located inside the housing of the battery cell and has a coupling element for inductive emission of the sensor data and for inductive reception of electrical power; an evaluation device for evaluating the sensor data, which evaluation device is located inside or outside the housing of the battery cell and has a transfer element for inductive transfer of electrical power to the sensing apparatus and for inductive reception of the sensor data from the sensing apparatus.

An exemplary system includes 1) a cochlear implant module configured to be implanted within a patient and including cochlear implant circuitry configured to apply electrical stimulation representative of one or more audio signals to the patient, 2) a first connector assembly coupled to the cochlear implant module and configured to be implanted within the patient, the first connector assembly including a first induction coil, 3) an implantable module configured to be implanted within the patient, and 4) a second connector assembly coupled to the implantable module and configured to be implanted within the patient, the second connector assembly including a second induction coil. The first connector assembly may be configured to be removably connected to the second connector assembly in order to facilitate inductive transfer of power between the first induction coil and the second induction coil. Corresponding systems are also disclosed.

The invention relates to a device for detecting and monitoring damage to races or adjacent regions of bearing rings (1, 2, 3) of anti-friction bearings. The device includes a measuring device, disposed in the anti-friction bearing chamber, having a sensor and structure for supplying sensor measurement data to the outside. The device has an energy source, which is also disposed in the anti-friction roller bearing chamber and which comprises a first coil (16) for the measuring device and a second coil (18) disposed outside the anti-friction bearing chamber and destined for inductive transfer of electrical energy to the first coil (16). The second coil (18) extends only over a part of the bearing circumference and the energy source comprises an energy accumulator (19) connected to the first coil (16).

An inductive power receiver is presented for providing a regulated power output to an electric load. The receiver inductively couples with an inductive power transmitter to form an inductive transfer system. A receiver-side regulator is provided to regulate the output voltage of the inductive transfer system. The regulator has a resonance-altering component and a switching unit configured to selectively connect the resonance-altering component to the reception circuit such that the amplitude of the induced voltage is controlled.

A coil unit for an electric vehicle for the inductive transfer of electrical energy between the coil unit and a stationary charging station. The coil unit includes at least one coil and a flux guide unit for guiding a magnetic flux occurring during operation of the coil. Also disclosed is an electric vehicle having a coil unit for the inductive transfer of electrical energy between a secondary coil of the coil unit and a primary coil of a charging station. The disclosed coil solves the problem of allowing the safe use of the inductive electrical energy transfer in electric vehicles, in particular motor vehicles, by proposing a coil unit, in which the flux guide unit has material weakenings, and an electric vehicle having such a coil unit.

The invention discloses an NFC system applied to library information interaction. The system comprises a mobile device with an NFC module, a book management server, a book NFC label, a NFC card reader, an access control single-chip microcomputer and an access control switch. The NFC card reader is installed at the access door of a library. The output end of the NFC card reader is connected with the input end of the access control single-chip microcomputer. The output end of the access control single-chip microcomputer is connected with the access control switch of the access door. The mobile device with the NFC module is in contact with the NFC card reader. Based on the NFC short-distance wireless communication, the inductive transfer of the information between the mobile device with the NFC module and the NFC card reader is realized. The book NFC label is pasted on a book in the library. Each book is provided with one book NFC label. The mobile device with the NFC module gets in contact with the book NFC label, so that the inductive transfer of the information between the mobile device with the NFC module and the book NFC label is realized based on the NFC short-distance wireless communication. The mobile device with the NFC module is in connection with the book management server through a mobile communication network. The system can improve the working efficiency of management and realizes the intelligent management.

The invention pertains to underwater energy plants utilizing water movement due to e.g. waves, tide or stream. The invention also relates to parts of such a plant, namely an underwater wing for capturing wave energy, apparatus to convert the mechanical energy to electrical energy, and a connector for transferring the electrical energy. In certain embodiments of the invention, a wing causes a moment around hinging axis due to water flow with autonomous or tethered in-hinge electric generator and underwater attachable high power electric connector based on inductive transfer of energy.