Lg Innotek Co., Ltd.

Dongbu Electronics, Co. Ltd.

Agency for Defense Development

Korea Electrotechnology Research Institute

Dongbu Anam Semiconductor, Inc.

Haesung Ds Co., Ltd.

Ki Min Lee

Jung Oh Lee

Su Ho Bae

Ki Chul Chang

Sung Hyun Leem

Yang Hyun Kim

Jeong Wook An

Hye Min Lee

Young Jin Park

Jin Wook Kim

Sun Woo Kim

Won Ho Lee

Dong Hyuk Lee

Kwan Ho Kim

Hyoun-Ee Kim

Yong Kee Baek

Yong Jun Ko

Won Lee

Eul Son Kang

Seung Su Baek

Hyeon Chang Son

Sang Hak Lee

Joo Seung Choi

Jun Ki Lee

Won Tae Lee

Provided is a coil pattern designed for achieving different functions of wireless charging and magnetic security transmission (MST) using one coil within a limited area. A composite coil pattern for wireless charging and MST includes a first terminal, a second terminal, a coil pattern connecting the first terminal to the second terminal; and an MST pattern portion connected to the coil through a connection line branching from an outer periphery of the coil, wherein the MST pattern portion is at one side in a direction with respect to the coil, and the MST pattern portion includes a plurality of lines parallel to the direction, and the plurality of lines are lines connecting an inner end located close to the coil to an outer end located far from the coil, and such that the plurality of lines are in serial connection with each other, when an inner end of a first line and an inner end of a second line next to the first line from among the plurality of lines are connected to each other, an outer end of the second line and an outer end of a third line next to the second line may be connected to each other.

Composite coil pattern for wireless charging and magnetic secure transmission

A light sensing device, according to an embodiment, for sensing light emitted from a light source, and reflected or scattered from an object comprises: a light transmitting member; and a light sensing unit disposed on the light transmitting member, wherein the light sensing unit comprises: a light transmitting region; a first electrode layer; a semiconductor layer; and a second electrode layer, wherein the semiconductor layer comprises: a first semiconductor layer disposed around the light-transmitting region; and a second semiconductor layer disposed outside the first semiconductor layer.

Light sensing device and particle sensing device

A wireless power receiver according to an embodiment wirelessly receives power from a wireless power transmitter. The wireless power receiver includes a printed circuit board having a reception space in a predetermined area, a receiving coil disposed in the reception space of the printed circuit board for receiving power from the wireless power transmitter, and a short-range communication antenna disposed on the printed circuit board while surrounding the receiving coil.

Wireless power receiver and control method thereof

Disclosed is an antenna assembly including a substrate, and a wireless charge antenna pattern on the substrate. The wireless charge antenna pattern has a sectional surface including a plurality of inner angles in which two inner angles are different from each other. The antenna assembly includes a wireless communication antenna pattern formed on the substrate and provided at an outside of the wireless charge antenna pattern. The wireless communication antenna pattern has a plurality of inner angles at a sectional surface thereof, and a plurality of angle values of the inner angles provided at the sectional surface of the wireless communication antenna pattern correspond to a plurality of angle values of the inner angles provided at the sectional surface of the wireless charge antenna pattern, respectively.

Antenna assembly and method for manufacturing same

An apparatus and method for wirelessly transmitting electromagnetic energy are provided. The apparatus includes a power source, a transmission unit, and a measurement unit. The power source supplies a power according to a certain frequency. The transmission unit receives the power to wirelessly transmit the received power through self resonance. The measurement unit measures a phase difference between a voltage and current of the transmission unit. The certain frequency is controlled according to the phase difference. Accordingly, the apparatus and method control only the frequency of the power supply when a resonance frequency is changed by the change of an ambient environment, thus enhancing energy transmission efficiency.

Energy transmission apparatus and method

Disclosed are a wireless power transmitter and a power transmission method thereof. The wireless power transmitter includes a plurality of transmission resonance units, a detection power applying unit applying detection power to the transmission resonance units to detect a location of the wireless power receiver, and a current measuring unit measuring current generating from an inner part of the wireless power transmitter based on the applied detection power. The wireless power transmitter transmits the power through at least one transmitting resonance unit corresponding to the location of the wireless power receiver based on the measured current.

Wireless power transmitter and power transmission method thereof

A wireless power receiver according to an embodiment wirelessly receives power from a wireless power transmitter. The wireless power receiver includes a printed circuit board; a receiving coil disposed on the printed circuit board, the receiving coil configured to receive power from the wireless power transmitter in a charging mode; a short-range communication antenna disposed on the printed circuit board surrounding the receiving coil, the short-range communication antenna configured to transmit and receive information in a communication mode; a shielding unit disposed on the receiving coil and the short-range communication antenna; and a controller configured to change an operating mode of the wireless power receiver into the charging mode or the communication mode.

Disclosed are a wireless power transmitter and a power transmission method thereof. The wireless power transmitter includes a plurality of transmission resonance units, a detection power applying unit applying detection power to the transmission resonance units to detect a location of the wireless power receiver, and a current measuring unit measuring current generating from a transmission coil unit of the wireless power transmitter based on the applied detection power. The wireless power transmitter transmits the power through at least one transmitting resonance unit corresponding to the location of the wireless power receiver based on the measured current.

A wireless power receiver to wirelessly receive power from a wireless power transmitter comprises a reception coil to receive the power wirelessly transmitted from the wireless power transmitter through a magnetic field, a frequency detecting unit to detect a frequency band of the power transmitted from the wireless power transmitter and an inductance varying unit to change an inductance of the reception coil according to the detected frequency band.

Wireless power receiver with variable frequency and method of controlling the same

Embodiments provide a wireless power receiving device. The wireless power receiving device having a metal body, includes a hole formed in one side of the metal body, a plastic film having a logo displayed on a surface thereof so as to be exposed outward through the hole, a receiving coil attached to a remaining surface of the plastic film, a first magnetism-shielding material attached to a surface of the receiving coil, and a second magnetism-shielding material formed on a bonding plane of the receiving coil and the metal body. The wireless power receiving device may minimize heat emission and power consumption by preventing the generation of eddy current due to the metal body thereof.

Wireless power receiving device

Disclosed is a wireless power transmission system. The wireless power transmission system includes a power transmitter including a first resonant circuit and wirelessly transmitting power using a resonance, at least one repeater including a second resonant circuit resonating with the first resonant circuit, and a power receiver disposed between the power transmitter and the repeater, including a third resonant circuit magnetically resonating with the first and second resonant circuits, and receiving power from the power transmitter and the repeater. If the power transmitter and the repeater are installed in an indoor space, such as a room or an office room, and the power receiver is installed in a mobile device, such as a cellular phone, the mobile device is automatically charged in the indoor space. The power transmission efficiency is improved by installing the power receiver between the power transmitter and the repeater. The received power is adjusted according to the alignment direction of the power receiver.

Growing community of inventors

Seoul, South Korea

Ki Min Lee