K. C. Tech Co., Ltd.

Telechips Inc.

Young Ho Yun

Kun Hee Park

Yong Ho Jeong

Kyong Jin Jung

Young Gon Kim

Ga Young Jung

Sukhyun Yoon

A composition for dissolving abrasive particles, and a cleaning method using the composition are provided. The composition includes a sulfur-containing organic acid, a fluorine ion-containing compound, and a solvent, and a turbidity change rate (%) measured at 60° C. for 15 minutes may be in a range of −80 to −99.

Composition for dissolving abrasive particles and cleaning method using the same

A cleaning solution composition and a cleaning method using the cleaning solution composition are provided. The cleaning solution composition includes a chelating agent including a first organic acid and a second organic acid, and an etching agent including a fluoride compound.

Cleaning solution composition and cleaning method using the same

Disclosed is a method for suppressing an inter-carrier interference and noise signal, and an orthogonal frequency division multiplexing receiver for performing the same. Here, a method for an orthogonal frequency division multiplex (OFDM) receiver to suppress an inter-carrier interference and noise signal by using a symbol interference free interval without inter-symbol interference (ISI) in a guard interval (GI) includes: performing a weighting operation between sample data of the symbol interference free interval and sample data of the effective symbol interval by using a signal-to-noise ratio (SNR) of the symbol interference free interval and an SNR of an effective symbol interval corresponding to the symbol interference free interval; and performing a fast Fourier transform (FFT) on FFT input data configured by including the weighting-operated sample data into the effective symbol interval.

Method for suppressing inter-subcarrier interference and noise signal, and orthogonal frequency division multiplexing receiver for performing same

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Gyeonggi-do, South Korea

Young Ho Yun