Patent application number | Description | Published |
20120161532 | WIRELESS POWER TRANSMITTING DEVICE AND WIRELESS POWER RECEIVING DEVICE - A loop antenna includes: a pair of first linear elements, a feed point connected with each of the first linear elements, a first variable impedance element, one end of which is connected with one end of the first linear elements, a second variable impedance element, one end and the other end of which are electrically connected with the other end of the first variable impedance element and the other end of the first linear elements, and a second linear element, one end and the other end of which are electrically connected with the other end of the first variable impedance element and the other end of the first linear elements. A self-resonance coil receives power fed to the feed point of the loop antenna and transmits the received power to a receiving self-resonance coil. | 06-28-2012 |
20120223595 | WIRELESS POWER TRANSMISSION APPARATUS - According to one embodiment, a wireless power transmission apparatus includes a housing and a plurality of transmitting coils. The housing is capable of containing one or more power receiving apparatuses includes one or more receiving coils which receive power. The plurality of transmitting coils are provided inside the housing and are configured to transmit the power to the power receiving apparatuses by making electromagnetic coupling with the receiving coils, at least two of the plurality of transmitting coils having orientations of axes different from each other, the axes each indicating a line perpendicular to a plane which is defined by windings of a coil. | 09-06-2012 |
20120242161 | RADIO POWER TRANSMITTING APPARATUS AND RADIO POWER TRANSMITTING SYSTEM - There is provided a radio power transmitting apparatus including: a power transmitting coil, a band signal generating unit, a reflected signal measuring unit, an oscillator and a communication control unit. The coil is supplied with a signal and transmits the signal to a power receiving coil on a radio power receiving apparatus through magnetic coupling. The generating unit generates a band signal having an allowable transmission band and supplies the band signal to the power transmitting coil. The reflected signal measuring unit measures a reflected signal of the band signal from the power transmitting coil. The oscillator generates a carrier signal having a controllable oscillating frequency. The control unit determines a transmission frequency based on a frequency characteristic of the reflected signal and performs control so that a transmission signal generated by modulating the carrier signal of the transmission frequency is supplied to the power transmitting coil. | 09-27-2012 |
20130002035 | WIRELESS POWER TRANSMISSION SYSTEM, POWER TRANSMISSION APPARATUS AND POWER RECEPTION APPARATUS - According to one embodiment, a wireless power transmission system, includes a power transmission antenna and a power reception antenna. The power transmission antenna has a first resonance frequency and a first frequency bandwidth, and wirelessly transmits high-frequency energy having a first transmission frequency. The power reception antenna has a second resonance frequency and a second frequency bandwidth, and wirelessly receives the high-frequency energy. The second resonance frequency is higher than a highest frequency within the first frequency bandwidth. The first transmission frequency falls within the first frequency bandwidth. | 01-03-2013 |
20130249299 | POWER TRANSMITTING APPARATUS, POWER RECEIVING APPARATUS, CONTROL APPARATUS, AND WIRELESS POWER TRANSFER SYSTEM - There is provided a power transmitting apparatus including: a power supply, a power transmitting inductor, a mutual coupling adjusting unit and a control unit, in which the power supply supplies AC power, the power transmitting inductor transfers the AC power to a power receiving apparatus through magnetic coupling with a power receiving inductor in the power receiving apparatus, the mutual coupling adjusting unit adjusts a relative position between the power transmitting inductor and the power receiving inductor, and the control unit controls the mutual coupling adjusting unit, based on a mutual coupling coefficient between the power transmitting inductor and the power receiving inductor. | 09-26-2013 |
20130249305 | POWER TRANSMISSION APPARATUS, POWER RECEPTION APPARATUS, AND POWER TRANSMISSION METHOD - There is provided a power transmission apparatus which transmits power generated by a power source to one or more power reception apparatuses. The power transmission apparatus includes a power allocation processing unit and a power transmission unit. The power allocation processing unit allocates first resources which are parts of resources for transmitting the power to the power reception apparatuses, based on requested power of the power reception apparatuses, and allocates second resources which are resources with the exception of first resources to a power reception apparatus selected from the power reception apparatuses based on power transmission characteristics of the power reception apparatuses. The power transmission unit transmits the power to the power reception apparatuses using first resources and second resources. | 09-26-2013 |
20140071807 | WIRELESS COMMUNICATION APPARATUS - According to one embodiment, a wireless communication apparatus includes a management unit and a setting unit. The setting unit sets, upon determination of disconnection of a wireless link with a base station of a main network used for communication, duration for waiting for receiving a first signal related to formation of a new network based on a priority. The management unit, when the duration is set, waits for receiving the first signal until the duration elapses. The setting unit switches an operation mode to a base station mode if the first signal is not received even the duration elapses. The management unit repeatedly performs a process to transmit the first signal after the operation mode is switched to the base station mode. | 03-13-2014 |
20140119080 | INVERTER APPARATUS AND INVERTER SYSTEM - According to one embodiment, an inverter apparatus includes a power conversion unit, a wireless communication unit and a control unit. The power conversion unit converts input power that is one of DC power and AC power into AC output power. The wireless communication unit wirelessly receives a first synchronization signal. The control unit controls a phase of the output power based on the first synchronization signal. | 05-01-2014 |
20140333144 | CONTROL APPARATUS, WIRELESS POWER TRANSMISSION SYSTEM AND WIRELESS POWER TRANSMISSION APPARATUS - According to one embodiment, there is provided a control apparatus for a first wireless power transmission apparatus and a second wireless power transmission apparatus. The first wireless power transmission apparatus includes a first inductor and an alternating-current signal source that supplies an alternating-current power to the first inductor. The second wireless power transmission apparatus includes a second inductor that receives the alternating-current power wirelessly from the first inductor. The position controller controls a phase relationship of current flowing in the first inductor and the second inductor such that attractive force or repulsive force is generated between the first and second inductors, and adjusts a relative position of the first inductor and the second inductor by use of the attractive force or the repulsive force. | 11-13-2014 |
20140339905 | FOREIGN OBJECT DETECTION DEVICE AND NON-CONTACT POWER TRANSFER DEVICE - A foreign object detection device has a foreign object detector configured to detect a foreign object when a power receiver receives power from a power transmitter in a non-contact manner, the foreign object detector being arranged between the power receiver and the power transmitter, and a power control signal generator configured to generate a power control signal which controls the power transmitted from the power transmitter when the foreign object is detected by the foreign object detector | 11-20-2014 |
20140376533 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION SYSTEM - According to an embodiment, a wireless communication unit includes a media access control (MAC) unit. The MAC unit includes a clock unit, an acquisition unit and a calculation unit. The clock unit includes a register which stores periodically counted-up first time information. The acquisition unit acquires a statistic for reception quality information on the received packet. The calculation unit normalizes the second time information, weights the normalized second time information using a time weight based on the statistic, and calculates a time correction value for correcting the first time information, using the weighted and normalized second time information. The time weight increases with increasing link stability indicated by the statistic. | 12-25-2014 |
20150061398 | Power Transmitting Apparatus, Power Receiving Apparatus, and Wireless Power Transmission System - There is provided a power transmitting apparatus in which the first communicating unit performs communication with a power receiving apparatus using the first antenna, the second antenna transmits the electric power generated by the power supply unit to the power receiving apparatus, the second communicating unit performs communication with the power receiving apparatus using the second antenna, the measuring unit measures first and second communication quality of the first and second communicating units, respectively, the control unit communicates, while power transmission to the power receiving apparatus is performed, transmission control information with the power receiving apparatus using the first or second communicating unit and controls the power transmission based on the transmission control information, and the control unit selects any one of the first communicating unit and the second communicating unit according to the first communication quality and the second communication quality to communicate the transmission control information. | 03-05-2015 |
20150074673 | CONTROL APPARATUS, CONTROL SYSTEM AND CONTROL METHOD - According to certain embodiment, there is provided a control apparatus including a processor. The processor controls a first processing unit. The processor acquires determination information for estimating a time delay till execution of a first process is started, in response to receiving an interrupt request for the first process related to the first processing unit from a program being executed underway by the processor or from hardware connected via a bus to the processor, and determines whether to execute the first process or not based on the determination information. | 03-12-2015 |