Described herein are improved capabilities for a source resonator having a Q-factor Q 1 >100 and a characteristic size x 1 coupled to an energy source, and a second resonator having a Q-factor Q 2 >100 and a characteristic size x 2 coupled to an energy drain located a distance D from the source resonator, where the source resonator and the second resonator are coupled to exchange energy wirelessly among the source resonator and the second resonator.

Wireless energy transfer systems

Described herein are improved configurations for a wireless power converter that includes at least one receiving magnetic resonator configured to capture electrical energy received wirelessly through a first oscillating magnetic field characterized by a first plurality of parameters, and at least one transferring magnetic resonator configured to generate a second oscillating magnetic field characterized by a second plurality of parameters different from the first plurality of parameters, wherein the electrical energy from the at least one receiving magnetic resonator is used to energize the at least one transferring magnetic resonator to generate the second oscillating magnetic field.

Wireless energy transfer converters

Disclosed is an apparatus for use in wireless energy transfer, which includes a first resonator structure configured for energy transfer with a second resonator structure over a distance D larger than characteristic sizes, [insert formula] and [insert formula], of the first and second resonator structures. A power generator is coupled to the first structure and configured to drive the first resonator structure or the second resonator structure at an angular frequency away from the resonance angular frequencies and shifted towards a frequency corresponding to an odd normal mode for the resonator structures to reduce radiation from the resonator structures by destructive far-field interference.

Wireless energy transfer, including interference enhancement

A variable type magnetic resonator includes an array of resonators each having one of at least two substantially different magnetic dipole moment orientations and at least one power and control circuit configured to selectively connect to and energize at least one of the array of resonators.

Wireless energy transfer using variable size resonators and system monitoring

Described herein are improved configurations for a device for wireless power transfer that includes a conductor forming at least one loop of a high-Q resonator, a capacitive part electrically coupled to the conductor, and a power and control circuit electrically coupled to the conductor, the power and control circuit providing two or more modes of operation and the power and control circuit selecting how the high-Q resonator receives and generates an oscillating magnetic field.

Wireless energy transfer using repeater resonators

PROBLEM TO BE SOLVED: To provide a method of supplying radio power, which prevents a failure in a transmitter. SOLUTION: A power source 11 supplies a transmitting resonant coil 12 with power. The transmitting resonant coil 12 transmits power to the receiving resonant coil 22 as a field energy by using magnetic field resonance. A comparator 14 compares the results of monitoring the supply of power by a monitor 13 with characteristic data that show the characteristics of the supply of power. A control unit 16 controls the supply of power in the power source 11 based on the results of comparison in the comparator 14. COPYRIGHT: (C)2011,JPO&INPIT

Method and system for supplying radio power

According to the present invention, a data reproduction apparatus sampling, at a given rate, a reproduced signal obtained from a recording medium and complying with a partial response waveform, and reproducing data from sampled values of the reproduced signal in accordance with the Viterbi decoding algorithm includes difference value calculation means for calculating a difference between compared ones of path metric values in selecting paths, alternative path selection means for selecting a path different from a corresponding one of the paths, which are selected in accordance with a given rule, as an alternative path based on the difference between the compared ones of the path metric values, and reproduced data determination means for determining data to be reproduced based on the paths selected in accordance with the given rule and the alternative path.

Data reproduction apparatus

The present invention provides a data recording device that can restrain the low-pass component in data to be written onto a recording medium without causing a problem in decoding the data using likelihood information. This data recording device includes: a data bit string combining unit that combines, by predetermined combining rules, a plurality of predetermined parity bit strings one by one with a data bit string obtained prior to a change to the bit order in a bit order rearranging procedure, thereby generating a plurality of composite data bit strings; and a data bit string selecting unit that selects one encoded data bit string from a plurality of encoded data bit strings generated through encoding procedures including the bit order rearranging procedure carried out for each of the plurality of composite data bit strings. Based on the selected encoded data bit string, the data recording device performs a data write operation onto the recording medium.

Data recording device and data reproducing device

A power transmitter including first and second power transmission coils affecting each other has: a first power supply for driving the first power transmission coil; a second power supply for driving the second power transmission coil; and a power transmission control unit for, according to impedance information of the first and second power supplies, controlling at least one of the phase difference between and the intensity ratio between the output signal of the first power transmission coil and the output signal of the second power transmission coil. This makes it possible to transfer power under a desirable condition.

Power transmitter, wireless power transfer system, and wireless power transfer method

The present invention relates to a holographic recording apparatus that records on a multiple basis information on a holographic memory. An object of the present invention is to provide a holographic recording apparatus capable of avoiding problems of recording error of data and destruction of the existing data, which will occur when the medium of the specification shortages is used.

Akiyoshi Uchida

Papers

Method and system for supplying radio power

Data reproduction apparatus

Data recording device and data reproducing device

Power transmitter, wireless power transfer system, and wireless power transfer method

Holographic recording apparatus