Samsung Electro-mechanics Co., Ltd.

Zn Technologies Co., Ltd.

Sungkyunkwan University

Ulsan National Institute of Science and Technology

Wits Co., Ltd.

Zn Ocean Co., Ltd.

Unist, Inc.

Chang Soo Kang

Jae Suk Sung

Chul Gyun Park

Ki Won Chang

Hyun Keun Lim

Hee Sun Han

Sang Ho Cho

Hyung Wook Cho

Si Hyung Kim

Sung Heum Park

Soon Tack Oh

Na Young Kim

Kang Yoon Lee

Franklin Don Bien

Sung Soo Lee

Yong Jong Park

Ji Hoon Kim

Mi Young Kim

Sang Beom Lee

Young Jun Park

Sang Hwan Cho

Joo Young Chun

Eun Young Shin

Sung Uk Lee

Jae Hyoung Cho

Chang Ik Kim

Chul Wan Park

Eun Gyu Bae

Chulgyun Park

Dong Tak Kim

A management system according to the present invention may comprise: a body including an opening/closing door; a first terminal that is located inside the body, measures environment information inside the body, and generates first data on the basis of the measured environment information; a second terminal that is located outside the body, generates second data including state information of the opening/closing door, and generates third data on the basis of the first data and the second data; and a server that generates a signal including risk coefficient information indicating a contamination level inside the body on the basis of the third data, and transmits the signal to a user terminal.

Method and system for managing metal shield space using plurality of terminals

The present invention relates to an interphone device for use in ships, the interphone device comprising: an input/output unit to which a voice is input or from which a voice is output; a transmission/reception circuit unit which receives the voice from the input/output unit and provides a first signal obtained by encoding and modulating the received voice; and an antenna which is attached to the metal hull of the ship, forms an electromagnetic field in the metal hull, and carries the first signal received from the transmission/reception circuit unit by the electromagnetic field, so as to propagate the first signal.

Device and method for intra-ship communication

A camera apparatus includes a camera module configured to generate an input image, and a transceiving circuit configured to encode and modulate the input image and to provide an electric and/or magnetic first signal. Also, the camera apparatus includes an antenna attached to a metal body of a vehicle and configured to form an electromagnetic field on the metal body and to propagate the first signal received from the transceiving circuit by carrying the first signal in the electromagnetic field.

Communication apparatus and method in vehicle

There are provided a non-contact power supply device and a non-contact power supply method, in which a short beacon is transmitted to recognize a power receiving device, a long beacon is transmitted to wake-up a communications circuit of the power receiving device, and charging power is transmitted in a contactless manner, wherein at least one of signal levels of the short beacon and signal levels of the long beacon is varied.

Non-contact power supply device and non-contact power supply method

An apparatus for transmitting power wirelessly includes a power transmitter configured to transmit power wirelessly to an apparatus for receiving power wirelessly, and an identification information manager configured to transmit first identification information allocated to the apparatus for transmitting power wirelessly to other devices.

Apparatus and method for transmitting and receiving power wirelessly

A non-contact type power supplying apparatus may be capable of detecting another power receiving apparatus even during the charging. The non-contact type power supplying apparatus may include: a first output unit outputting a detection signal detecting a power receiving apparatus; and a second output unit outputting a wake-up signal waking-up a communications circuit of the detected power receiving apparatus when the power receiving apparatus is detected, thereby making it possible to supply power to the detected power receiving apparatus using a non-contact type method.

Non-contact type power supplying apparatus and non-contact type power supplying method

A wireless power transmitter includes a sensor configured to sense an object, a power transmitter configured to wirelessly transmit power to a wireless power receiver, and a controller configured to determine whether the object is the wireless power receiver, and control the power transmitter to wirelessly transmit power to the wireless power receiver upon the object being determined to be the wireless power receiver, wherein the sensor and the power transmitter comprise separate coils.

Wireless power transmitter and wireless power transmission method

A non-contact power transmission device includes a power transmission unit configured to contactlessly provide electric power; a controller configured to provide location information of the non-contact power transmission device; and a communications unit configured to transmit the location information and product information received from a non-contact power reception device to a server, and receive an approval to transmit electric power to the non-contact power reception device from the server.

Non-contact power transmission device and location-based service system using the same

A rectifier includes: first and second high side switches including source terminals connected to an alternating current input terminal and drain terminals connected to one end of an output capacitor; first and second low side switches including drain terminals connected to the alternating current input terminal and source terminals connected to a ground terminal and another end of the output capacitor; and a cross connector configured to allow parasitic capacitance of the first high side switch or the second high side switch to flow to a ground when the first high side switch or the second high side switch is turned off.

Rectifier having reduced switching loss

A non-contact type power transmitting coil may include at least one conductor pattern disposed on at least one surface of a base having a predetermined area, having a plurality of turns, and transmitting received power externally in a non-contact manner. The intervals between at least some of adjacent pattern portions of the conductor pattern in a direction from a center portion of an inner diameter of the conductor pattern to an outermost pattern portion conductor pattern may be different from one another.

Non-contact type power transmitting coil and non-contact type power supplying apparatus

A non-contact type power transmission apparatus and method thereof, includes a control unit configured to provide assigned location information to a device. The apparatus also includes a display unit configured to display location-based service data provided to the device based on the location information.

Non-contact type power transmission apparatus and method thereof and location-based service system using the same

A synchronous rectifier includes: a rectifying circuit including transistors, the rectifying circuit being configured to generate rectified power by rectifying input power input to an input terminal of the rectifying circuit depending on switching operations of the transistors, and output the rectified power to an output terminal of the rectifying circuit; and a controller configured to apply a gate signal to each of the, and adjust a pulse width of the gate signal depending on a difference between the input power and the gate signal.

Synchronous rectifier and control circuit thereof

A non-contact type power supply apparatus may include a power unit transmitting power to a power receiving apparatus in a non-contact type manner, a communicating unit communicating with the power receiving apparatus, and a controlling unit terminating communications with the power receiving apparatus in the case in which a communications signal level of the power receiving apparatus transmitted to the communicating unit is equal to or less than a reference signal level.

Non-contact type power supply apparatus and non-contact type power supply method

A coil device may be capable of varying the gap of a coil so that several devices may be wirelessly charged simultaneously or a single device may be wirelessly charged with concentrated power. The coil device may include: a case having a reception space and varying a charging area upon a user's selection; and a coil part, having, in the reception space of the case, a coil body formed of a wound conductor having a predetermined length. A gap of the wound conductor of the coil body varies as the charging area of the case varies.

Growing community of inventors

Suwon-si, South Korea

Chang Soo Kang