Samsung Electro-mechanics Co., Ltd.

Cj Corporation

Hyundai Motor Company

Kia Corporation

Lg Electronics Inc.

Yura Corporation Co., Ltd.

Cheiljedang Corp.

Kia Motors Corporation

Cj Cheiljedang Corporation

Thn Corp.

Sang Wook Park

Jong Hoon Kim

Hyung Chul Ryu

Ji Young Noh

Il Hwan Cho

Sung Hak Jung

Myeong Yun Chae

Hyun Jung Park

Jee Woong Lim

Young Hoon Kim

Kyu Jeong Yeon

Young Mee Chung

Sung Hwan Park

Dong Hyun Ko

Hyung Ok Chun

In Ki Min

Kyoung Rae Kang

Jie Eun Park

Youn Suk Kim

Ki Joong Kim

Jun Goo Won

Jae Hyouck Choi

Seong Geun Kim

Young Jin Lee

Sang Hoon Ha

Dae Seok Jang

Sung Hak Lee

Je Hak Kim

Hae Tak Jin

Chul Hwan Yoon

Sung Jae Yoon

Joo Hun Park

So Young Wang

Dal Hyun Kim

Seung Hee Lee

Il Hwan Kim

Taerho Kim

Je Hyun Kim

Doo Cheol Park

Nam Hyeong Kim

Chun Seon Lyu

Young Ho Kim

Jeong Hoon Kim

Sung Hyun Kim

Eun Young Lee

Hyun Jun Kim

Sung Dae Kim

Shinichi Iizuka

Ju Young Park

Jun Kun Choi

Sang Won Kim

Bo Hyun Hwang

Sang Hee Kim

Dai Gil Lee

Chan Yong Jeong

Nam Heung Kim

Tae Won Lim

Jun Kyung Na

Seuk Hwan Chung

Dae Lyun Kang

Nack Gyun Seong

Chan Young Jung

Sang Yeon Kim

Da Hye Park

Seong Chan Byun

Chul Hyo Yoon

Yoshiyuki Tonami

Hak Sung Kim

Youn Lea Kim

Hyun Young Kim

Dae Hee No

Ii Hwan Cho

Yong Shin Choi

Kuk Hyeon Yoo

Oh Kab Kwon

Yu Nam Kim

Disclosed is a press forming apparatus including a lower die assembly having a lower die, an upper die assembly having an upper die configured to be movable in a first direction relative to the lower die, a cam slider configured to be movable in a second direction relative to the lower die, and a conversion mechanism configured to convert a movement of the upper die assembly in the first direction into a movement of the cam slider in the second direction.

Press forming apparatus

A power supply system for an electric vehicle for autonomous driving may be capable of stabilizing power supply to power electric parts and indoor parts even when short circuit occurs in one or more nodes by variously configuring an architecture circuit for power supply to the PE parts and the indoor parts using one or more switching elements and a short-circuit detector associated with the one or more nodes.

Power supply system for electric vehicle

In an embodiment a power supply system includes a low voltage DC/DC converter (LDC) configured to convert a high voltage into a low voltage, a main battery configured to be charged by the LDC and to supply power to a junction block divided into an essential load part and a general load part, a control block comprising a first power switch configured to control power between the LDC and the junction block, a second power switch configured to control the power between the main battery and the junction block, and a load switch configured to selectively cut off the power to the general load part and an auxiliary battery configured to selectively supply power to an auxiliary junction block.

Power supply system for autonomous vehicle and control method thereof

An apparatus for managing power of a vehicle includes a processor that controls a bypass path for bypassing an input power or a boosting path for boosting the input power corresponding to an idle mode signal, a booster that boosts the input power corresponding to a driving signal to generate an output power, a control circuit that selectively supplies a power for operating the booster corresponding to an output signal of the processor in a boost mode, and a pulse width control circuit that controls a duty of the driving signal corresponding to an output signal of the control circuit.

Apparatus for managing power of vehicle and method of controlling the same

A bias circuit of an amplifying device including amplifying circuits and a bypass circuit responding to a first control signal, includes a first bias circuit, a second bias circuit, and a compensating circuit. The first bias circuit is configured to supply a first base bias voltage to a first amplifying circuit of the amplifying circuits in response to a second control signal. The second bias circuit is configured to supply a second base bias voltage to a second amplifying circuit of the amplifying circuits in response to a third control signal. The compensating circuit is connected to either one or both of the first bias circuit and the second bias circuit, and configured to vary an impedance in response to a fourth control signal, and compensate for either one or both of the first base bias voltage and the second base bias voltage based on the varied impedance.

Bias circuit and amplifying device with bias compensation function

A high frequency switch includes a first signal transferring unit configured to transfer a high frequency signal from a first port to a common port, and a second signal transferring unit configured to transfer the high frequency signal from the common port to a second port. The high frequency switch also includes an electrostatic discharge (ESD) protecting unit including a protective transistor positioned between the common port and a ground and a diode element positioned between a control terminal of the protective transistor and the first port.

High frequency switch

A low noise amplifier circuit includes a first amplifier including a first transistor and a second transistor that are cascode-connected to each other; a second amplifier including a third transistor and a fourth transistor that are cascode-connected to each other; a source terminal matcher connected to a source of the first transistor and a source of the third transistor; and an input matcher providing input that is impedance-matched by a first inductor and a second inductor to a gate of the first transistor and providing input which is impedance-matched by the first inductor to a gate of the third transistor. The circuit is able to operate in a dual-band and provide impedance matching, while being simpler than alternative circuits.

Low noise amplifier circuit

A power amplifier may include an amplifying unit configured to amplify an input signal, an impedance varying unit connected between the amplifying unit and an output port that is for outputting an amplified signal of the input signal, and a controller configured to output a first control signal based on a level of power of the amplified input signal of the amplifying unit to control a varying of impedance of the impedance varying unit.

Power amplifier and method

There is provided a dual communications network base station apparatus including: a first UTRA network transmitting and receiving first data including pairs information via a previously set first communications band; a second UTRA network transmitting and receiving second data including the pairs information via a second communications band different from the first communications band; a core network combining the first data and the second data by using the pairs information during wireless reception, dividing the first data and the second data including the pairs information according to a previously set division rate during wireless transmission, and providing the corresponding UTRA network with the divided first data and second data; and a server communicating data including the first and second data with the core network.

Dual communications network base station apparatus

There are provided a power combiner implemented by a printed circuit board, a power amplifying module having the same, and a signal transceiving module. The power combiner includes: a primary wiring unit formed on one surface of a printed circuit board, receiving a plurality of balance signals having positive balance signals and negative balance signals, and including a plurality of positive primary wirings and a plurality of negative primary wirings, wherein the plurality of positive primary wirings are spaced apart from each other by a predetermined interval, the plurality of negative primary wirings are spaced apart from each other by a predetermined interval, one ends of the plurality of positive primary wirings are connected in common to thereby receive the plurality of positive balance signals, one ends of the plurality of negative primary wirings are connected in common to thereby receive the plurality of negative balance signals, and the other ends of the plurality of positive primary wirings and the other ends of the plurality of negative primary wirings are connected to each other to thereby form a loop; and a secondary wiring unit formed on the other surface of the printed circuit board, and including a secondary wiring combining powers of the plurality of balance signals from the primary wirings forming the loop to thereby output a single end signal.

Power combiner, power amplifying module having the same, and signal transceiving module

Disclosed herein are a tunable capacitance control circuit and a tunable capacitance control method. The tunable capacitance control method is a tunable capacitance control method by a tunable capacitance control circuit including an MIM capacitor, a plurality of FET switches, and a control unit, wherein the control unit outputs control signals allowing only one of the plurality of (n) FET switches to be switched on and the remaining (n&#x2212;1) FET switches to be switched off to the plurality of FET switches, thereby obtaining a desired tunable capacitance value.

Tunable capacitance control circuit and tunable capacitance control method

There are provided a dual mode communications device and a method of improving a data rate thereof. The dual mode communications device according to the embodiment of the present invention may include a selection unitconnecting antenna terminals to receive terminals or transmit terminals, a receive path circuit unit allowing RF receive signals from each of the first and second antennas to pass therethrough, a transmit path circuit unit providing RF transmit signals to the transmit terminals of the selection unit, an RF circuit unit converting the RF receive signals from the receive path circuit unit into baseband signals and converting the baseband signals to be transmitted into the RF transmit signals, and a baseband circuit unit performing control and signal processing of the selection unit in a single communications mode among a dual mode and a single mode.

Dual mode communications device and method of improving data rate thereof

There is provided a power amplifying apparatus including: a power amplifier; a power regulator providing a driving voltage and a driving current corresponding to a control voltage to the power amplifier; a current sensing unit sensing a current and a voltage corresponding to the driving current and controlling the driving voltage according to the sensed current; a current control unit controlling a current bias according to the sensed voltage of the current sensing unit; and a current bias circuit unit controlling a bias current of the power amplifier according to the controlling of the current control unit.

Power amplifying apparatus

Disclosed herein is a stack type surface acoustic wave package. The surface acoustic wave package comprises a first bare chip having a plurality of electrodes formed thereon, a second bare chip having a plurality of electrodes and via-holes formed thereon, a connecting portion electrically connecting the first bare chip to an upper surface of the second bare chip such that the electrodes of the first bare chip face the electrodes of the second bare chip, and a sealing member provided on the first and second bare chips to form an air-tight space on an operating surface between the first and second bare chips. The surface acoustic wave package can prevent deformation due to thermal impact from the outside during a packaging process, enhancing reliability of the product, minimizing the size of the product, and reducing manufacturing costs by reducing the number of components and material costs.

Stack type surface acoustic wave package, and method for manufacturing the same

A 1,2,4-triazole derivative of formula 1 or a non-toxic salt thereof, a preparation method thereof, and a pharmaceutical composition containing the derivative or the salt as an active ingredient are provided.

Thione derivative, method for the preparation thereof, and pharmaceutical composition containing the same

Growing community of inventors

Kyungki-do, South Korea

Sang Wook Park