公开(公告)号：US20220335712A1

公开(公告)日：2022-10-20

申请号：US17641875

申请日：2019-09-27

Applicant: NEC Corporation

Inventor： Shuhei YOSHIDA ,  Makoto TERAO

IPC: G06V10/778 ,  G06V10/776

Abstract: The dataset supply unit supplies a learning dataset. The recognition unit outputs the recognition result for the recognition object data in the supplied learning dataset. Further, the intersection matrix computation unit computes the intersection matrix based on the learning dataset. The recognition loss computation unit computes the recognition loss using the recognition result, the intersection matrix, and the correct answer data given to the recognition object data. Then, the updating unit updates the parameters of the recognition unit based on the recognition loss.

公开(公告)号：US20150365066A1

公开(公告)日：2015-12-17

申请号：US14768308

申请日：2014-02-20

Applicant: NEC CORPORATION

Inventor： Masahiro TANOMURA ,  Shuhei YOSHIDA ,  Kaoru SHIZUNO

IPC: H03H7/40 ,  H01F38/14 ,  H04B5/00

CPC classification number: H03H7/40 ,  H01F38/14 ,  H02J7/025 ,  H02J50/12 ,  H02J50/80 ,  H04B5/0037 ,  H04B5/0075

Abstract: A transmission apparatus transmits electric power via a medium that is present between the transmission apparatus and a receiving apparatus. The transmission apparatus includes: an antenna; and a power transmission circuit that outputs electric power via the antenna of the transmission apparatus, the electric power having a first resonance frequency determined by an impedance of the medium, an impedance of the antenna of the transmission apparatus, and an impedance of an antenna of the receiving apparatus.

Abstract translation: 发送装置经由存在于发送装置和接收装置之间的介质发送电力。 发送装置包括：天线; 以及电力传输电路，其经由所述发送装置的天线输出电力，所述电力具有由所述介质的阻抗确定的第一共振频率，所述发送装置的天线的阻抗和所述天线的阻抗 接收装置。

公开(公告)号：US20150311880A1

公开(公告)日：2015-10-29

申请号：US14441296

申请日：2013-11-07

Applicant: NEC CORPORATION

Inventor： Shuhei YOSHIDA ,  Masahiro TANOMURA

IPC: H03H7/38 ,  H02J7/02 ,  H01F38/14 ,  H02J5/00

CPC classification number: H03H7/38 ,  H01F38/14 ,  H02J5/005 ,  H02J7/0042 ,  H02J7/025 ,  H02J50/12 ,  H02J50/50

Abstract: An electric power transmission device characterized in that the electric power transmission device includes a power transmitting unit which wirelessly transmits an electric power and a power receiving unit which receives the electric power, the power transmitting unit and the power receiving unit include a coil for electric power transmission and an inclusion unit made of a dielectric material covering the coil for electric power transmission, at least one of the power transmitting unit and the power receiving unit includes an impedance adjustment unit which varies the impedance thereof, and the electric power is transmitted at a resonance frequency determined by an impedance of the power transmitting unit, an impedance of the power receiving unit, and an impedance of the conducting medium.

Abstract translation: 一种电力传输装置，其特征在于，所述电力传输装置包括无线发送电力的电力发送单元和接收所述电力的电力接收单元，所述电力发送单元和所述电力接收单元包括用于电力的线圈 传输和由覆盖用于电力传输的线圈的电介质材料制成的包含单元，所述电力传输单元和所述电力接收单元中的至少一个包括阻抗调节单元，所述阻抗调节单元改变其阻抗，并且电力在 由功率发送单元的阻抗，受电单元的阻抗和导电介质的阻抗确定的谐振频率。

公开(公告)号：US20160336805A1

公开(公告)日：2016-11-17

申请号：US15110836

申请日：2015-01-15

Applicant: NEC CORPORATION

Inventor： Shuhei YOSHIDA ,  Masahiro TANOMURA ,  Kaoru SHIZUNO

IPC: H02J50/12 ,  H02J7/04 ,  H02J7/02 ,  H02J50/80 ,  H02J50/90

CPC classification number: H02J50/12 ,  B64C2201/066 ,  H02J7/025 ,  H02J7/042 ,  H02J17/00 ,  H02J50/80 ,  H02J50/90

Abstract: In order to stably supply power even under a condition such that variations in a transmission environment occur constantly and irregularly in a wireless power transmission, a wireless power transmission control device of the present invention includes: a data collection means for obtaining data indicating the characteristics of a transmission medium for wireless transmission of power via a receiving antenna provided in a movable body; a data prediction means for deriving predicted transmission characteristics that predict a change in the characteristics of the transmission medium by using the data and for calculating a control parameter corresponding to the predicted transmission characteristics; and a parameter control means for controlling the movable body and the receiving antenna by using the control parameter.

Abstract translation: 本发明的无线电力传输控制装置为了稳定地供电，即使在无线电力传输中不断地发生传播环境变化的情况下，也能够稳定地供电，所述无线电力传输控制装置包括：数据采集装置， 用于通过设置在可移动体中的接收天线无线地传输电力的传输介质; 数据预测装置，用于通过使用所述数据导出预测所述传输介质的特性变化并用于计算与所述预测传输特性对应的控制参数的预测传输特性; 以及用于通过使用控制参数来控制可移动体和接收天线的参数控制装置。

公开(公告)号：US20250086996A1

公开(公告)日：2025-03-13

申请号：US18723909

申请日：2022-03-02

Applicant: NEC Corporation

Inventor： Ryoma OUCHI ,  Makoto TERAO ,  Shuhei YOSHIDA

IPC: G06V20/70 ,  G06V10/764 ,  G06V10/774 ,  G06V40/20

Abstract: In order to solve a problem of making it possible to provide a technique by which assigning a pseudo label is possible regardless of the presence or absence of class-labeled data, an information processing apparatus 1 includes: an inferring means (11) for inferring a class regarding data pieces which constitute time-series data; a calculating means (12) for calculating a degree of agreement among results of inference made by the inferring means regarding a plurality of data pieces contained in a section which is temporally continuous; and a pseudo label assigning means (13) for assigning a pseudo label based on the results of inference in the section, to at least one of the plurality of data pieces in the section, according to the degree of agreement.

公开(公告)号：US20230177389A1

公开(公告)日：2023-06-08

申请号：US17801554

申请日：2020-03-13

Applicant: NEC Corporation

Inventor： Shuhei YOSHIDA ,  Makoto TERAO

IPC: G06N20/00

CPC classification number: G06N20/00

Abstract: A recognition loss calculation unit of a learning device calculates a recognition loss using: a recognition result with respect to recognition object data in a learning data set that is a set of a pair of the recognition object data and a weak label; a mixing matrix calculated based on the learning data set; and the weak label attached to the recognition object data. The recognition loss calculation unit includes: a difference calculation unit that calculates a difference between a mixing matrix and the recognition result; and a sum of squares calculation unit that calculates the recognition loss by calculating a sum of a square of the difference.

公开(公告)号：US20190207429A1

公开(公告)日：2019-07-04

申请号：US16332254

申请日：2017-09-11

Applicant: NEC CORPORATION

Inventor： Shuhei YOSHIDA ,  Masahiro TANOMURA

IPC: H02J50/12 ,  H02J50/40 ,  H03H7/40 ,  B63G8/00

CPC classification number: H02J50/12 ,  B63G8/00 ,  H02J50/40 ,  H03H7/40

Abstract: In order to facilitate impedance matching even when using a magnetic field antenna for power transmission in a medium, this underwater wireless power supply device 101 wirelessly transmits energy by resonating at a frequency determined by the impedance of a power transmission antenna 103, the impedance of a power receiving antenna 104, and the impedance of a good conductor medium 102. The power transmission antenna 103 and the power receiving antenna 104 have multiple antenna coils 1061, and multiple resonant antenna units 1051 to 1054 having at least one dielectric 1071 arranged between the multiple antenna coils 1061, and, at least one of the multiple resonant antenna units 1051 to 1054 is provided with a load adjustment mechanism 1081 for adjusting the load.

公开(公告)号：US20220198783A1

公开(公告)日：2022-06-23

申请号：US17608201

申请日：2019-05-29

Applicant: NEC Corporation

Inventor： Shuhei YOSHIDA ,  Makoto TERAO

IPC: G06V10/776 ,  G06V10/62 ,  G06T7/20 ,  G06V10/774 ,  G06V20/40

Abstract: The learning device 10D is learned to extract moving image feature amount Fm which is feature amount relating to the moving image data Dm when the moving image data Dm is inputted thereto, and is learned to extract still image feature amount Fs which is feature amount relating to the still image data Ds when the still image data Ds is inputted thereto. The first inference unit 32D performs a first inference regarding the moving image data Dm based on the moving image feature amount Fm. The second inference unit 34D performs a second inference regarding the still image data Ds based on the still image feature amount Fs. The learning unit 36D performs learning of the feature extraction unit 31D based on the results of the first inference and the second inference.

公开(公告)号：US20190207428A1

公开(公告)日：2019-07-04

申请号：US16331029

申请日：2017-09-11

Applicant: NEC CORPORATION

Inventor： Shuhei YOSHIDA ,  Masahiro TANOMURA ,  Hiromitsu TAHARA

IPC: H02J50/12 ,  H01F38/14 ,  B60L53/12 ,  B63G8/00

CPC classification number: H02J50/12 ,  B60L53/12 ,  B60L2200/32 ,  B63G8/001 ,  H01F27/2804 ,  H01F38/14 ,  H02J50/40

Abstract: In order to reduce a power transmission antenna and power receiving antenna of a wireless power supply device for supplying power underwater to a size suitable for an underwater mobile body and sensor, this underwater wireless power supply device 101 wirelessly transmits energy by resonating at a frequency determined by the impedance of a power transmission antenna 103 that transmits energy wirelessly in a good conductor medium 102, the impedance of a power receiving antenna 104 which receives energy transmitted from the power transmission antenna 103, and the impedance of the good conductor medium 102. The power transmission antenna 103 and the power receiving antenna 104 have the multiple antenna coils 105, 106, and at least one dielectric 107, 108 arranged between the multiple antenna coils 105, 106, and the multiple antenna coils 105, 106 each has multiple laminated coils 109.

公开(公告)号：US20190199450A1

公开(公告)日：2019-06-27

申请号：US16331671

申请日：2017-09-11

Applicant: NEC CORPORATION

Inventor： Shuhei YOSHIDA ,  Masahiro TANOMURA

IPC: H04B13/02 ,  H04B1/04

Abstract: In order to provide an underwater radio communication system which stably uses wideband modulated signal to communicate with electromagnetic waves, this underwater radio communication system 1, for communicating underwater between a transmission unit 10 and a receiving unit 20 with electromagnetic waves, has a distortion compensation unit 12 which compensates for distortion resulting from propagation in water in accordance with the frequency of the electromagnetic waves.