Samsung Electronics Co., Ltd.

Korea University Industrial Academic Collaboration Foundation

Gilwon Yoon

Chulwoo Kim

Kye-jin Jeon

In-duk Hwang

Sangdon Jung

Sangjoon Hahn

Janghoon Song

Haemin Cho

A temperature sensor includes: a first oscillator that generates a first frequency signal; a second oscillator that generates a second frequency signal; a multiplexer that selectively passes the first frequency signal and the second frequency signal; and a frequency-to-digital converter that converts a frequency difference between the first frequency signal and the second frequency signal into a digital code.

Apparatus and method for measurement of temperature using oscillators

A method of estimating a pure spectrum and a concentration of each component constituting n sample mixtures, in which p kinds of components are mixed, includes (a) performing a principal component analysis of the spectra of the n mixtures, which are measured using m wavelengths, to represent the spectra of the n mixtures as factors and scores of the respective factors, wherein n, p, and m are integers and m&#x3e;p, and (b) performing an independent component analysis of the scores obtained in (a) to estimate the pure spectra and the concentrations of the respective components.

Method and apparatus of estimating pure spectra and a concentration of a mixture

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Seoul, South Korea

Gilwon Yoon