| Patent application number | Description | Published |
|---|
| 20090015075 | Wireless Energy Transfer Using Coupled Antennas - A power transmission system produces a magnetic field at a source that is wirelessly coupled to a receiver. Both the source and receiver are capacitively coupled LC circuits, driven at or near resonance. | 01-15-2009 |
| 20090051224 | INCREASING THE Q FACTOR OF A RESONATOR - A wireless powering and charging system is described. The antennas can be high q loop antennas. The antennas can use coupling between a first part and a second part. | 02-26-2009 |
| 20090072629 | High Efficiency and Power Transfer in Wireless Power Magnetic Resonators - Techniques for wireless power transmission at levels that induce high power transfer and/or high efficiency of coupling. | 03-19-2009 |
| 20090127937 | Wireless Power Bridge - A wireless power bridge that allows magnetic transmission of energy across a solid barrier such as a wall. A circuit is described for controlling the operation. | 05-21-2009 |
| 20090134712 | Wireless Power Range Increase Using Parasitic Antennas - Wireless power transfer is created using a first antenna that is part of a magnetic resonator, to create a magnetic field in an area of the first antenna. One or more parasitic antennas repeats that power to create local areas where the power is more efficiently received. | 05-28-2009 |
| 20090179502 | Wireless powering and charging station - A base with a portable device that relays energy to the portable device. | 07-16-2009 |
| 20090213028 | Antennas and Their Coupling Characteristics for Wireless Power Transfer via Magnetic Coupling - Optimizing a wireless power system by separately optimizing received power and efficiency. Either one or both of received power and/ or efficiency can be optimized in a way that maintains the values to maximize transferred power. | 08-27-2009 |
| 20090243397 | Packaging and Details of a Wireless Power device - A wireless power system includes a power source, power receiver, and components thereof. The system can also include a parasitic antenna that can improve the coupling to the power source in various modes. The antenna can have both a variable capacitor and a variable inductor, and both of those can be changed in order to change characteristics of the matching. | 10-01-2009 |
| 20100038970 | Short Range Efficient Wireless Power Transfer - A device is powered wirelessly using magnetically coupled resonance, either from a short distance, e.g., on a surface, or from or on a longer distance. | 02-18-2010 |
| 20100109443 | WIRELESS POWER TRANSMISSION FOR ELECTRONIC DEVICES - Exemplary embodiments are directed to wireless power transfer. A wireless power receiver includes a receive antenna for coupling with a transmit antenna of transmitter generating a magnetic near field. The receive antenna receives wireless power from the magnetic near field and includes a resonant tank and a parasitic resonant tank wirelessly coupled to the resonant tank. A wireless power transmitter includes a transmit antenna for coupling with a receive antenna of a receiver. The transmit antenna generates a magnetic near field for transmission of wireless power and includes a resonant tank and a parasitic resonant tank coupled to the resonant tank. | 05-06-2010 |
| 20100117454 | ADAPTIVE MATCHING AND TUNING OF HF WIRELESS POWER TRANSMIT ANTENNA - Exemplary embodiments of the invention s are directed to a wireless power system with different coupling loops, such as two loops. The coupling loops are switched. One can be used for vicinity coupling, e.g., greater than a distance away, the other for proximity coupling, e.g., less than a distance away. | 05-13-2010 |
| 20100127660 | WIRELESS POWER TRANSMISSION FOR PORTABLE WIRELESS POWER CHARGING - Exemplary embodiments are directed to wireless power transfer. A portable wireless power charger includes an antenna configured to generate a magnetic near-field for coupling of wireless power to a wireless powered device including a receiver. The antenna is substantially disposed around the perimeter of the charging pad. The portable wireless power charger further includes a feeder cable for coupling the input power to the charging pad. | 05-27-2010 |
| 20100148723 | BIDIRECTIONAL WIRELESS POWER TRANSMISSION - Exemplary embodiments are directed to wireless power transfer. A wireless power transceiver and device comprise an antenna including a parallel resonator configured to resonate in response to a substantially unmodulated carrier frequency. The wireless power transceiver further comprises a bidirectional power conversion circuit coupled to the parallel resonator. The bidirectional power conversion circuit is reconfigurable to rectify an induced current received at the antenna into DC power and to induce resonance at the antenna in response to DC power. | 06-17-2010 |
| 20100184371 | TRANSMITTERS FOR WIRELESS POWER TRANSMISSION - Exemplary embodiments are directed to wireless power transfer. A wireless power transmitter includes a transmit antenna configured as a resonant tank including a loop inductor and an antenna capacitance. The transmitter further includes an amplifier configured to drive the transmit antenna and a matching circuit operably coupled between the transmit antenna and the amplifier. The transmitter also includes a capacitor integrating the antenna capacitance and a matching circuit capacitance. | 07-22-2010 |
| 20100190435 | PASSIVE RECEIVERS FOR WIRELESS POWER TRANSMISSION - Exemplary embodiments are directed to wireless power transfer. A wireless power transmission receiver includes a receive antenna including a parallel resonator configured to resonate in response to a magnetic near-field and couple wireless power therefrom. The receiver further includes a passive rectifier circuit coupled to the parallel resonator. The passive rectifier circuit is configured to transform a load impedance to the parallel resonator. | 07-29-2010 |
| 20100190436 | CONCURRENT WIRELESS POWER TRANSMISSION AND NEAR-FIELD COMMUNICATION - Exemplary embodiments are directed to wireless power transfer and Near-Field Communication (NFC) operation. An electronic device includes an antenna configured to resonate at an NFC frequency and generate an induced current. The electronic device further including rectifier circuitry and NFC circuitry each concurrently coupled to the induced current. The rectifier circuitry configured to rectify the induced current into DC power for the electronic device and the NFC circuitry configured to demodulate any data on the induced current. A method for concurrent reception of wireless power and NFC includes receiving an induced current from an antenna, rectifying the induced current into DC power for use by an electronic device, and demodulating the induced current concurrent with rectifying to determine any data for the NFC. | 07-29-2010 |
| 20100194335 | WIRELESS POWER AND DATA TRANSFER FOR ELECTRONIC DEVICES - Exemplary embodiments are directed to wireless power. A wireless charging device may comprise a charging region configured for placement of one or more chargeable devices. The charging device may further include at least one transmit antenna configured for transmitting wireless power within the charging region. Furthermore, the charging device is configured to exchange data between at least one chargeable device of the one or more chargeable devices. | 08-05-2010 |
| 20100210233 | RECEIVE ANTENNA ARRANGEMENT FOR WIRELESS POWER - Exemplary embodiments are directed to wireless charging. An electronic device may comprise at least one receive antenna integrated within an electronic device and configured to receive wireless power from a wireless transmit antenna. Further, the at least one receive antenna may be spaced from each conductive component within the electronic device having a clearance therebetween adapted to enable formation of a magnetic field around the loop conductor. | 08-19-2010 |
| 20100277120 | PARASITIC DEVICES FOR WIRELESS POWER TRANSFER - Exemplary embodiments are directed to wireless power transfer. A method may include wirelessly receiving power from a near field in a first near field coupling mode region with at least one parasitic antenna coupled to a housing having a chargeable device positioned therein. The method may further include generating an enhanced near field from the near field with the at least one parasitic antenna and wirelessly receiving power from the enhanced near field at an at least one receive antenna coupled to the chargeable device. | 11-04-2010 |
| 20110095617 | FERRITE ANTENNAS FOR WIRELESS POWER TRANSFER - Ferrite core antenna used for transmitting or receiving wireless power. The antenna can move relative to the core. | 04-28-2011 |
