Lg Electronics Inc.

Hyengcheul Choi

Chisang You

Jaehyun Choi

Seong Hun Lee

Sooyong Park

Hwanyong Kim

Beom Seok Chae

Dongjin Kim

Seonghun Lee

Bongsik Kwak

Deuksu Choi

Jaesoon Kwon

Eunsoo Lee

Minsoo Kim

Byungwoon Jung

Seungwoo Ryu

Jinmoo Park

Soyeon Lee

Taewook Kwon

Junchan Kwon

Yohan Lim

Yongcheol Park

Hyunwoo Kim

Sujin Kim

Jinhong Kim

Joonho Park

Kyuho Lee

Sunghye Yoon

Wonseok Joo

Sungkyu Kim

Kyoungsun Hwang

Ansun Hyun

Songyi Lee

Gyunghwan Yuk

Byungeun Jeon

Jaehyuk Seol

Hosang Lee

Yuntaek Jung

Jonggu Kim

Junghyen Ha

Hyunggeol Kwak

Hyung Geol Kwak

Sanghyun Jeong

Eunkwang Koh

Gynghwan Yuk

A mask apparatus includes a mask body, a fan module, a seal that defines a breathing space, a pressure sensor coupled to the mask body and configured to sense an air pressure in the breathing space, and a controller coupled to the mask body and configured to control a rotation speed of the fan module based on the air pressure. The controller is configured to determine a breathing cycle based on a maximum pressure value and a minimum pressure value among air pressure values sensed by the pressure sensor, determine a time difference between a maximum time point and a minimum time point, determine an expected time point of inhalation in a subsequent breathing cycle based on the breathing cycle and the time difference, and increase the rotation speed of the fan module based on a current time corresponding to the expected time point of inhalation.

Mask apparatus and method for controlling the same

A mask apparatus includes a mask body having a fan module, a seal defining a breathing space, a pressure sensor sensing air pressure in the breathing space, a mask body cover coupled to the mask body, and a controller that controls a rotation speed of the fan module based on pressure values. The controller is configured to determine breathing information including a maximum pressure value and time point, and a minimum pressure value and time point, determine a breathing state of a user based on the breathing information, determine whether the breathing state is a steady state, determine a tidal volume of the user based on the breathing information, and control the rotation speed of the fan module based on the tidal volume.

The present specification relates to a wireless power receiving device, receiving method, and receiving system, the device comprising individual rectifiers for each receiving coil, wherein the individual rectifiers comprise isolators for isolating a receiving coil for PC0 from a receiving coil for PC1.

Low power- and medium power-compatible wireless charging receiving device and method

Provided are a wireless charging apparatus in which multiple coils overlaps with one another on separated cores, and a wireless charging system including such wireless charging apparatus. According to an embodiment of the present disclosure, the wireless charging apparatus includes a plurality of plate coils spaced apart from one another, a first coil disposed on the plurality plate coils, and a second coil disposed on the first coil to partially overlap with the first coil.

Wireless charging apparatus using multiple coils and wireless charging system comprising the same

The present disclosure provides a wireless charging device in which multiple coils are overlapped with one another on separated cores. According to an embodiment of the present disclosure, the wireless charging device includes two flat cores spaced apart from each other, and a first layer coil to a fourth layer coil disposed above the two plate cores and disposed on different layers from one another and overlapped with one another, so that the multiple cores are overlapped with one another on the separated cores.

Wireless charging device using multi-coil

Disclosed herein is a wireless charging apparatus for preventing cancelation of magnetic fields generated between a plurality of adjacent transmission coils by placing a repeater on the plurality of transmission coils, the wireless charging apparatus including a plurality of transmission coils spaced the same distance apart from a reference point, and a repeater placed on the plurality of transmission coils to be overlapped with each of the plurality of transmission coils with respect to the reference point that is a center, wherein a coupling coefficient between each of the plurality of transmission coils and the repeater is higher than a coupling coefficient between the plurality of transmission coils.

Wireless charging apparatus for preventing magnetic field cancellation between adjacent coils

Disclosed herein is a wireless power transmitting device that includes a charging module which is configured to transmit a foreign object sensing signal for sensing at least one of a wireless power receiving device and a foreign object on a charging pad, and which is configured to transmit a wireless power signal for charging the wireless power receiving device, and a control module which is configured to control the charging module such that the wireless power signal and the foreign object sensing signal are transmitted, and which is configured to sense at least one of the foreign object and the wireless power receiving device, based on an output voltage sensed by the charging module, after the foreign object sensing signal is transmitted.

Wireless power transmitting device

The present disclosure relates to a wireless power receiving apparatus capable of receiving multi-level power transmitted by a wireless power transmitting apparatus. According to an embodiment of the present disclosure, the wireless power receiving apparatus includes a first receiving coil in which induced current is generated by electromagnetic induction, a second receiving coil connected in series with the first receiving coil by a switch, and a processor that is driven based on the induced current generated by the first receiving coil and controls the switch based on power information included in the induction current to selectively connect the first receiving coil and the second receiving coil.

Multi-level power compatible wireless power receiving apparatus

An apparatus is provided in which electromagnetic field components generated by a transmitting coil is induced to other transmitting coils based on plurality of transmitting coils being driven for multiple wireless charging, for example, wirelessly charging two or more receivers to prevent degradation in performance of detecting a receiving coil and a foreign object during multiple wireless charging. According to the present disclosure, the receiving coil and foreign object detecting apparatus in multiple charging conditions using the plurality of transmitting coils includes an induced signal processor. The induced signal processor can control an amount of voltage and an operation frequency corresponding to the wireless charging coil and can detect a peak and can include a filter to thereby prevent interference of a signal induced from other neighboring transmitting coils.

Receiving coil and foreign object detecting apparatus in multiple charging condition using plurality of transmitting coils

The present invention relates to a watch-type mobile terminal, comprising: a main body; a first band and a second band which are connected one side and the other side of the main body; a main board located inside the main body; a first antenna module mounted on the first band and connected to the main board to transmit and receive wireless signals; a second antenna module mounted on the second band and connected to the main board to transmit and receive wireless signals; and a control unit for maintaining the connection state between the second antenna and the main board when wireless communication is performed through the first antenna module, thereby using the second antenna module as the ground of the first antenna module. The watch-type mobile terminal can enhance the efficiency of the antennas by minimizing interferences among a plurality of antennas.

Watch-type mobile terminal

A mobile terminal comprises: a band connected to a body so as to be worn on a user's wrist; and an antenna having at least one winding such that an NFC signal for acquiring product information from a product proceeds toward a user's hand, and passing through the body and arranged along the circumference of the band.

A wearable sound equipment includes a main body, an earbud outputting sound, a board loaded in the main body and including a ground, a cable having one end connected to the main body and the other end connected to the earbud, and including an audio line and a ground line, an audio chipset connected to the audio line and transmitting a sound signal to an audio output unit of the earbud, an antenna radiator loaded in the main body, a feeder connecting the board and one end of the antenna radiator with each other and supplying electric power to the antenna radiator; and a ground connection connecting one end of the ground line with the ground of the board, wherein the ground connection is arranged near the feeder.

Wearable sound equipment

A mobile terminal including a display unit including a window glass and a display module; a front case and a rear case configured to support the display unit; an antenna including a first coil formed on an edge region of a rear surface of the window glass or formed on an edge region of a front surface of the front case, a second coil formed at a height different from that of the first coil in a thickness direction of the mobile terminal, and a conductive hole configured to electrically connect the first coil and the second coil; a battery configured to supply power to the mobile terminal; and a battery cover positioned on a back side of the display unit and including a metal.

Electronic device

There is disclosed a mobile terminal including a housing comprising a first metal case, a second metal case and a first non-conductive case arranged between the first metal case and the second metal case, a battery embedded in the housing, a first coil arranged in an area covered by the first metal case inside the housing, a main board comprising a charging module implemented to recharge the battery using electric currents which flow in the first coil, and a first resonator arranged in an area covered by the first non-conductive case and comprising a first matching circuit corresponding to a first frequency, such that the examples of the mobile terminal in accordance with the present disclosure may enhance performance of the wireless communication unit and wireless charging performance, without design change of the housing having the metal case.

Mobile terminal

Disclosed are an antenna module and a mobile terminal having the same. The antenna module includes a ground plate; a metal plate spaced apart from the ground plate by a distance such that a surface of the metal plate faces a surface of the ground plate; a first conductive member spaced apart from an edge of the ground plate by a distance, the first conductive member encompassing the edge; a feeding part formed on the ground plate; a second conductive member formed on the ground plate and coupled to the feeding part, wherein the second conductive member indirectly feeds the first conductive member and the metal plate; and a first connection member and a second connection member that couple the ground plate to the metal plate.

Growing community of inventors

Seoul, South Korea

Hyengcheul Choi