公开(公告)号：US09941753B2

公开(公告)日：2018-04-10

申请号：US14565895

申请日：2014-12-10

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Kenichi Asanuma ,  Hiroshi Yamamoto

IPC: H02J17/00 ,  H02J50/90 ,  H02J50/12 ,  H02J5/00 ,  H02J7/02 ,  G01B7/00 ,  G01R27/26

CPC classification number: H02J50/90 ,  G01B7/003 ,  G01B2210/58 ,  G01R27/2611 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/12

Abstract: A power transmission apparatus oscillates alternating current power at a first frequency (f1) which is lower than a resonant frequency (fr) of the second resonator and at a second frequency (f2) which is higher than the resonant frequency (fr). The power transmission apparatus measures an inductance value Lin (f1) and an inductance value Lin (f2). The inductance value Lin (f1) is measured when the oscillation circuit oscillates alternating current power at the first frequency (f1), and the inductance value Lin (f2) is measured when the oscillation circuit oscillates alternating current power at the second frequency (f2). The power transmission apparatus calculates a coupling coefficient k by using an expression represented by k2=1−Lin(f2)/Lin(f1), to detect relative position of the second resonator to the first resonator on the basis of the coupling coefficient k.

公开(公告)号：US09941750B2

公开(公告)日：2018-04-10

申请号：US14787200

申请日：2014-06-18

Applicant: CANON KABUSHIKI KAISHA

Inventor： Takahiro Shichino

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/40 ,  H02J50/80 ,  H02J50/60 ,  H02J7/02 ,  H02J17/00 ,  H02J1/14 ,  H02J5/00 ,  H04W52/36 ,  H04W72/04 ,  H02J50/10

CPC classification number: H02J50/40 ,  H02J1/14 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/10 ,  H02J50/60 ,  H02J50/80 ,  H04W52/367 ,  H04W72/0406

Abstract: The present invention relates to improvement of usability in the case of detecting a second power receiving apparatus during transmission of power to a first power receiving apparatus.A power transmitting apparatus includes a power transmitting unit that transmits power to a plurality of power receiving apparatuses by radio, and a switching unit that controls, in a case where power is being transmitted to a first power receiving apparatus by the power transmitting unit, a power transmission mode for transmitting power to the first power receiving apparatus, and a detection mode for detecting a second power receiving apparatus that is different from the first power receiving apparatus. The resolution for detecting the second power receiving apparatus in the detection mode is higher than the resolution for detecting the second power receiving apparatus in the power transmission mode.

公开(公告)号：US09941729B2

公开(公告)日：2018-04-10

申请号：US14821065

申请日：2015-08-07

Applicant: NUCURRENT, INC.

Inventor： Alberto Peralta ,  Vinit Singh ,  Ajit Rajagopalan ,  Jason Luzinski ,  Jacob Babcock ,  Christine A. Frysz

IPC: H02J7/02 ,  H02J5/00 ,  H02J17/00 ,  H01F38/14 ,  H02J50/40 ,  H02J50/80

CPC classification number: H02J7/025 ,  H01F27/2871 ,  H01F38/14 ,  H02J5/005 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80

Abstract: Various embodiments of a single structure multiple mode antenna are described. The antenna is preferably constructed of a single layer having a first inductor coil that is electrically connected in series with a second inductor coil. The antenna is constructed having a plurality of electrical connections positioned along the first and second inductor coils. A plurality of terminals facilitates connection of the electrical connections thereby providing numerous electrical connection configurations and enables the antenna to be selectively tuned to various frequencies and frequency bands.

公开(公告)号：US09941705B2

公开(公告)日：2018-04-10

申请号：US14276786

申请日：2014-05-13

Applicant: Energous Corporation

Inventor： Michael A. Leabman

IPC: H02J5/00 ,  A41D19/00 ,  A43B17/04 ,  A42B1/00 ,  H02J7/02 ,  H02J17/00 ,  H01F38/14 ,  H04W52/38 ,  A41B1/08 ,  A41D1/00 ,  A41D1/02 ,  A41D13/005 ,  A41D19/015 ,  A43B17/00 ,  H04W4/00

CPC classification number: H02J50/80 ,  A41B1/08 ,  A41D1/002 ,  A41D1/02 ,  A41D13/0051 ,  A41D13/0053 ,  A41D19/0027 ,  A41D19/015 ,  A42B1/008 ,  A43B17/003 ,  A43B17/04 ,  H01F38/14 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/20 ,  H02J50/23 ,  H02J50/27 ,  H02J50/40 ,  H02J50/90 ,  H04W4/80 ,  H04W52/38

Abstract: The present invention provides various electric receiver arrangements included in clothing pieces that require electric current to perform tasks, such as warming, cooling and displaying. Suitable wireless sound power transmission techniques like pocket forming are used to provide the clothing pieces with wireless power. In some embodiments, receivers may include at least one sensor connected to at least one rectifier and one power converter. In other embodiments, receivers including a plurality of sensors, a plurality of rectifiers or a plurality of power converters may be provided, In addition, receivers may include communications components which may allow for communication to various electronic equipment including transmitters for controlling the temperature circuits.

公开(公告)号：US09935496B2

公开(公告)日：2018-04-03

申请号：US13742992

申请日：2013-01-16

Applicant: Samsung Electronics Co., LTD.

Inventor： Ki Young Kim ,  Eun Seok Park ,  Young Ho Ryu ,  Sang Wook Kwon ,  Nam Yun Kim ,  Dong Zo Kim ,  Yun Kwon Park ,  Chang Wook Yoon ,  Jin Sung Choi ,  Young Tack Hong

IPC: H02J50/80 ,  H02J50/50 ,  H02J17/00 ,  H02J5/00 ,  H02J7/02

Abstract: A wireless power transmission system and a method for increasing a coupling efficiency by adjusting a resonant frequency are provided. A device of the wireless power transmission system includes a resonator configured to transmit a wireless power, and a communication unit configured to receive information from another device. The device further includes a controller configured to determine a power transmission efficiency based on the information, and adjust a resonant frequency of the device, a resonant frequency of a relay device, and a resonant frequency of the other device, if the power transmission efficiency is less than or equal to a predetermined reference efficiency.

公开(公告)号：US09929603B2

公开(公告)日：2018-03-27

申请号：US14680421

申请日：2015-04-07

Applicant: uBeam, Inc.

Inventor： Meredith Perry

IPC: H01F27/42 ,  H01F37/00 ,  H01F38/00 ,  H02J50/15 ,  H02J7/02 ,  H04R19/00 ,  H04B11/00 ,  H02J5/00 ,  G10K11/18 ,  G10K11/34 ,  H02J7/00 ,  H03C3/02 ,  H02J17/00 ,  G10K11/26 ,  H03C5/00 ,  H04R17/00 ,  H04R23/00 ,  H02J50/80 ,  H01F38/14 ,  B60L11/18

CPC classification number: H02J50/15 ,  B60L11/182 ,  B60L11/1838 ,  G10K11/18 ,  G10K11/26 ,  G10K11/341 ,  G10K11/346 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0052 ,  H02J7/025 ,  H02J17/00 ,  H02J50/40 ,  H02J50/80 ,  H03C3/02 ,  H03C5/00 ,  H04B11/00 ,  H04R17/00 ,  H04R19/00 ,  H04R23/00 ,  Y02E60/12 ,  Y02T10/7005 ,  Y02T10/7072 ,  Y02T90/121 ,  Y02T90/122 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/168 ,  Y04S30/12

Abstract: A signal generator generates an electrical signal that is sent to an amplifier, which increases the power of the signal using power from a power source. The amplified signal is fed to a sender transducer to generate ultrasonic waves that can be focused and sent to a receiver. The receiver transducer converts the ultrasonic waves back into electrical energy and stores it in an energy storage device, such as a battery, or uses the electrical energy to power a device. In this way, a device can be remotely charged or powered without having to be tethered to an electrical outlet.

公开(公告)号：US09923386B1

公开(公告)日：2018-03-20

申请号：US14748129

申请日：2015-06-23

Applicant: ENERGOUS CORPORATION

Inventor： Michael A. Leabman ,  Gregory Scott Brewer

IPC: H02J17/00 ,  H02J5/00 ,  H02J7/02 ,  H02J50/20

CPC classification number: H02J5/005 ,  H02J7/025 ,  H02J17/00 ,  H02J50/20 ,  H02J50/70 ,  H02J50/80

Abstract: The embodiments described herein include a transmitter that transmits a power transmission signal (e.g., radio frequency (RF) signal waves) to create a three-dimensional pocket of energy. At least one receiver can be connected to or integrated into electronic devices and receive power from the pocket of energy. The transmitter can locate the at least one receiver in a three-dimensional space using a communication medium (e.g., Bluetooth technology). The transmitter generates a waveform to create a pocket of energy around each of the at least one receiver. The transmitter uses an algorithm to direct, focus, and control the waveform in three dimensions. The receiver can convert the transmission signals (e.g., RF signals) into electricity for powering an electronic device. Accordingly, the embodiments for wireless power transmission can allow powering and charging a plurality of electrical devices without wires.

公开(公告)号：US09923380B2

公开(公告)日：2018-03-20

申请号：US14201088

申请日：2014-03-07

Applicant: Songnan Yang ,  Janardhan Koratikere Narayan ,  Sreenivas Kasturi ,  Jonathan Rosenfeld ,  Masud Hannan

Inventor： Songnan Yang ,  Janardhan Koratikere Narayan ,  Sreenivas Kasturi ,  Jonathan Rosenfeld ,  Masud Hannan

IPC: H02J17/00 ,  H02J5/00 ,  H02J50/60 ,  H02J50/12

CPC classification number: H02J5/005 ,  H02J17/00 ,  H02J50/05 ,  H02J50/12 ,  H02J50/40 ,  H02J50/60

Abstract: Techniques of capacitive coupling in a wireless power system are described herein. The techniques may include forming a transmitting coil to be inductively coupled to a receiving coil of a device under charge (DUC). The techniques may include forming a capacitive element of the transmitting coil to be capacitively coupled to a conductive component of the DUC.

公开(公告)号：US09917476B2

公开(公告)日：2018-03-13

申请号：US14402662

申请日：2013-05-22

Applicant: SATO HOLDINGS KABUSHIKI KAISHA

Inventor： Mats Hedberg ,  Markus Frank

IPC: H04Q5/22 ,  H02J17/00 ,  H01Q1/22 ,  H01Q21/29 ,  H01Q9/06 ,  H01Q9/28 ,  G06K19/077 ,  H01Q7/00 ,  H01Q21/08

CPC classification number: H02J50/12 ,  G06K19/07786 ,  H01Q1/2216 ,  H01Q7/00 ,  H01Q9/065 ,  H01Q9/28 ,  H01Q21/08 ,  H01Q21/29 ,  H02J17/00 ,  H02J50/70

Abstract: An adaptive near field electromagnetic coupler for coupling electromagnetic power to a plane metallic trace (inlay) independently of the inlay geometry and/or orientation without external control algorithms. This is achieved by employing a microstructure of phase altering elements suitable for creating a constant phase field distribution along a top surface of the coupler structure. This is advantageously applicable to printing devices having a function of encoding RFID layers printed on a medium. In view of the provided flexibility, the coupler arrangement can be employed in a variety of printers of different mechanical design.

公开(公告)号：US09917467B2

公开(公告)日：2018-03-13

申请号：US14695217

申请日：2015-04-24

Applicant: Samsung Electro-Mechanics Co., Ltd.

Inventor： In Wha Jeong ,  Hugh Kim ,  Dae Hun Kim

IPC: H02J7/00 ,  H02J7/02 ,  H02J5/00 ,  H02J17/00

CPC classification number: H02J50/12 ,  H02J5/005 ,  H02J7/025 ,  H02J17/00

Abstract: A wireless power reception device includes a first resonant circuit having a first resonant frequency; a second resonant circuit connected in parallel with the first resonant circuit and having a second resonant frequency; and a rectifier configured to receive power received wirelessly by either one or both of the first resonant circuit and the second resonant circuit to output a charging current.