公开(公告)号：US20220360114A1

公开(公告)日：2022-11-10

申请号：US17621316

申请日：2019-07-19

Applicant: OMRON Corporation

Inventor： Manh Tai NGUYEN ,  Kentaro HAMANA ,  Akito MURAI ,  Yoshiki SUGIMOTO

IPC: H02J50/60 ,  H02J50/40 ,  H02J50/23

Abstract: A power supply apparatus according to the present invention includes a power supply antenna, a directivity control unit, a position information acquisition unit, and a control unit. The power supply antenna emits, to a plurality of power reception apparatuses, a radio wave that is based on a power supply signal. The directivity control unit controls directivity of the power supply antenna. The position information acquisition unit acquires position information indicating a position of a moving obstruction. The control unit determines, based on the position information, a power reception apparatus, among the plurality of power reception apparatuses, to which power is supplied while avoiding the obstruction. The control unit controls the directivity control unit to steer the radio wave toward the determined power reception apparatus

公开(公告)号：US20230006479A1

公开(公告)日：2023-01-05

申请号：US17792437

申请日：2021-01-28

Applicant: OMRON Corporation

Inventor： Akito MURAI ,  Manh Tai NGUYEN

IPC: H02J50/23 ,  H02J50/40 ,  H02J50/80 ,  H04B5/02 ,  H02J50/60

Abstract: A wireless power transmission system includes a power transmitter that outputs a power transmission radio wave, a plurality of wireless sensors that receive power, and at least one human body tag to be carried on a human body in an environment. The power transmitter communicates with the at least one human body tag in each slot to estimate power exposure on a human body per slot for a human body carrying the at least one human body tag, calculates power exposure on a human body per cycle as an average of power exposure on a human body for all slots, and limits power transmission to the wireless sensors in response to the power exposure on a human body per cycle exceeding a predetermined value.

公开(公告)号：US20220248242A1

公开(公告)日：2022-08-04

申请号：US17625812

申请日：2019-07-19

Applicant: OMRON Corporation

Inventor： Akito MURAI ,  Kentaro HAMANA ,  Manh Tai NGUYEN ,  Yoshiki SUGIMOTO

IPC: H04W24/08

Abstract: A wireless communication apparatus is provided with: a signal receiving circuit configured to wirelessly receive a measurement value of a sensor from a slave apparatus; a position estimator configured to estimate a position of the slave apparatus; a storage device configured to store a history of the position of the slave apparatus; and a master control circuit configured to display the measurement value of the sensor and the position of the slave apparatus on a display device. When the master control circuit fails to receive the measurement value of the sensor from the slave apparatus, the master control circuit displays, on the display device, a latest position stored in the storage device, together with an error message indicating that communication between the wireless communication apparatus and the slave apparatus is interrupted.

公开(公告)号：US20220294273A1

公开(公告)日：2022-09-15

申请号：US17629929

申请日：2019-08-19

Applicant: OMRON Corporation

Inventor： Kentaro HAMANA ,  Tetsuya NOSAKA ,  Manh Tai NGUYEN ,  Akito MURAI ,  Yoshiki SUGIMOTO

IPC: H02J50/80 ,  H02J50/40 ,  H02J50/20 ,  H02J50/00

Abstract: A wireless power transmitting apparatus is provided with: a power transmitting circuit for transmitting power for a load device to a wireless power receiving apparatus; a signal transmitting circuit for transmitting a control signal for the load device to the wireless power receiving apparatus; a signal receiving circuit for obtaining an estimated received power level indicating a level of the power transmitted from the wireless power transmitting apparatus and received by the wireless power receiving apparatus; and a control circuit. The control circuit periodically allocates time slots to wireless power receiving apparatuses for wireless power transmission. When the received power level is smaller than a threshold in a first time slot allocated to one wireless power receiving apparatus, the control circuit extends a second time slot allocated to the one wireless power receiving apparatus, the second time slot preceding or following the first time slot.

公开(公告)号：US20160360548A1

公开(公告)日：2016-12-08

申请号：US15118929

申请日：2015-02-24

Applicant: OMRON Corporation

Inventor： Manh Tai NGUYEN ,  Keisuke SAITO

IPC: H04W72/12

CPC classification number: H04W72/1278 ,  H04W4/08 ,  H04W4/38 ,  H04W28/06 ,  H04W72/1289 ,  H04W74/04

Abstract: A parent node in a wireless communication system includes a generation unit configured to generate a send request including response instruction data specifying child nodes required to respond, and a response timing for each of the child nodes required to respond. A child node in the wireless communication system according to the invention includes a receiving unit configured to receive the send request; a response determination unit configured to determine from the response instruction data whether or not the child node itself is required to respond to the send request; and a response transmission unit configured to transmit a response at a response timing based on the response instruction data, when the child node is required to respond to the send request.

Abstract translation: 无线通信系统中的父节点包括：生成单元，被配置为生成发送请求，该发送请求包括指定响应所需的子节点的响应指令数据，以及响应所需的每个子节点的响应定时。 根据本发明的无线通信系统中的子节点包括被配置为接收发送请求的接收单元; 响应确定单元，被配置为从所述响应指令数据确定所述子节点本身是否需要响应所述发送请求; 以及响应发送单元，被配置为当要求所述子节点响应所述发送请求时，基于所述响应指令数据在响应定时发送响应。

公开(公告)号：US20230113648A1

公开(公告)日：2023-04-13

申请号：US17794640

申请日：2021-01-28

Applicant: OMRON Corporation

Inventor： Kentaro HAMANA ,  Manh Tai NGUYEN ,  Akito MURAI

IPC: H02J50/23 ,  H02J50/70 ,  H02J50/90 ,  H04B5/00

Abstract: A host unit in a wireless power transmission system transmits power to a secondary unit during a communication-directivity control period and a power transmission period that are temporally divided from each other. The host unit transmits power such that a transmission output power of a power transmission radio wave during the power transmission period is greater than a transmission output power of a communication signal during the communication-directivity control period.

公开(公告)号：US20220263643A1

公开(公告)日：2022-08-18

申请号：US17627931

申请日：2019-08-07

Applicant: OMRON Corporation

Inventor： Yoshiki SUGIMOTO ,  Akito MURAI ,  Kentaro HAMANA ,  Manh Tai NGUYEN

IPC: H04L5/16 ,  H04B1/525 ,  H04B1/10 ,  H04L5/14

Abstract: A noise cancellation device for a wireless communication system is provided to include wireless communication devices each using a digital phase modulation and each performing half-duplex communication. The wireless communication devices is configured as an array, and the noise cancellation device is provided for suppressing an wrap-around signal from other wireless communication device by combining a cancellation signal obtained by controlling at least one of a phase and an amplitude of a transmission carrier signal with a received wireless signal based on a baseband signal of the received wireless signal. The noise cancellation device includes a controller configured to determine whether a number of bits per one frame of the baseband signal to be transmitted is an odd number or an even number, and to invert the cancellation signal when the number of bits per one frame of the baseband signal to be transmitted is an even number.

公开(公告)号：US20180212697A1

公开(公告)日：2018-07-26

申请号：US15744836

申请日：2017-01-10

Applicant: OMRON Corporation

Inventor： Soji OHMAE ,  Manh Tai NGUYEN ,  Keisuke SAITO

IPC: H04J3/16 ,  H04W72/04

CPC classification number: H04J3/1694 ,  G05B19/0426 ,  G05B2219/15117 ,  H04J3/06 ,  H04J3/0652 ,  H04W4/00 ,  H04W4/027 ,  H04W4/04 ,  H04W72/0446 ,  H04W84/12 ,  H04W84/20

Abstract: A wireless communication device is configured to wirelessly transmit predetermined information possessed by the wireless communication device to a master device corresponding thereto at predetermined transmission intervals, and the wireless transmission is performed in accordance with a predetermined time division multiple access scheme. The wireless communication device: acquires, from a predetermined wireless slave device included in one or more wireless slave devices different from the wireless communication device, unrelated transmission information that is transmission information wirelessly transmitted to a master device, corresponding to the predetermined wireless slave device, in accordance with the predetermined time division multiple access scheme and that includes identification information identifying the predetermined wireless slave device, the unrelated transmission information being acquired at the time of the wireless transmission; on the basis of the identification information included in the unrelated transmission information, the acquisition time of the unrelated transmission information, and information relating to a transmission sequence, determines a predetermined time slot for the wireless communication device to transmit the predetermined information to the master device corresponding thereto in accordance with the predetermined time division multiple access scheme; and transmits the predetermined information. Consequently, provided is wireless communication technology that enables information collection using high-speed and highly reliable wireless communication.