Electronics and Telecommunications Research Institute

Other

Hyundai Motor Company

Doosan Heavy Industries & Construction Co., Ltd

Korea Telecom

Hee Tae Lee

Min Kyu Song

Sang Hwan Lee

Nam Hwang

Seung Goo Kang

Seok Bong Hyun

Chul Soon Park

Hwan Wook Baek

Byoung Gun Choi

Seong Su Park

Seong-Su Park

Kwang Eui Pyun

Seong Yeol Yang

Seung Yup Kang

Geum Young Tak

Seung Min Chae

Hood panel for automobile

A data transmission method includes requesting, by a plurality of transceivers, an authentication to a main controller, transmitting an authentication acceptance signal and separate decoding keys from the main controller to the transceivers, transmitting an encoded data bundle from the main controller to the transceivers and extracting, by each of the transceivers, some of data in the at least one encoded data bundle using the decoding key.

Data transmission apparatus and method

An assembly of a swing type tailgate checker includes: a checker assembly including a first base bracket on a vehicle body and having a hole at one side and an arm locking member at an outer side of the first base bracket to form a fitting space together with the first base bracket and partially bent toward the first base bracket; and an arm assembly including a second base bracket on a tailgate of a vehicle and including an arm extended from the second base bracket toward the vehicle body and having an arm roller provided at an end portion, wherein at the time of opening the tailgate, the arm roller is temporarily fixed while being locked by the arm locking member at a primary open angle and passes through the arm locking member to thereby be unlocked, such that it is completely opened while being again rotated.

Assembly of swing type tailgate checker

Provided is a direct-conversion frequency mixer for down converting a radio frequency (RF) signal into a baseband signal, in which a single phase RF signal and a quadrature location oscillation (quadrature LO) signal are used to generate the baseband signal, the frequency mixer comprising a first frequency mixing unit that uses quadrature LO signals having respective phases of 0 degrees and 180 degrees to directly down-convert the single phase RF signal into the in-phase baseband signal, and a second frequency mixing unit that uses quadrature LO signals having respective phases of 90 degrees and 270 degrees to directly down-convert the single phase RF signal into the quadrature-phase baseband signal, whereby drains and sources of the transistor for receiving the quadrature LO signal and the transistor for receiving the RF signal are connected in common, thus enabling low power source voltage driving.

Direct-conversion frequency mixer

An optical switch module for aligning and fixing an optical fiber array relative to an optical switch device includes an optical fiber support member for fixing the optical fiber array; a first support device forming a homo-junction with the optical fiber support member and including a first thermal deformation buffer device; and a second support device forming a hetero-junction with the first support device to support the first support device and including a second thermal deformation buffer device.

Optical switch module having a buffer device for minimizing a post welding shift

A method for correcting or hammering a deformation which occurs in the multi-channel optoelectronic module and is caused by a post welding shift. The multi-channel optoelectronic module has an optical fiber support member for supporting an optical fiber array. The method includes the steps of: assembling the multi-channel optoelectronic module by using a laser welding process; and forming at least one welded portion on a predetermined position of said optical fiber supporting member corresponding to the deformation to thereby recover the deformation by using a shrinkage effect of the welded portion.

Method for laser hammering a multi-channel optoelectronic device module

Disclosed is a micromirror for a hybrid optoelectronic integrated circuit, a method for manufacturing the same, a micromirror-photodetector assembly and an assembly of hybrid optoelectronic integrated circuit for receiving light. The micromirror the present invention comprises a silicon substrate and at least one V-shaped groove formed in the silicon substrate and the V-shaped groove has an inclined surface reflecting light emitted from an optical waveguide to a photodetector. The alignment of the photodetector and the optical fibers is achieved without an additional attachment equipment, by inserting the optical fibers into the V-groove.

Micromirror for a hybrid optoelectronic integrated circuit, a method for

Growing community of inventors

Daejeon, South Korea

Hee Tae Lee