Abstract:
휴대 단말 장치를 이용한 수면 품질 측정 방법에 있어서, 휴대 단말 장치의 움직임을 감지하는 과정과; 웨이블릿 변환(Wavelet Transform)을 이용하여 상기 감지되는 휴대 단말 장치의 움직임에 따라 발생되는 신호의 노이즈를 제거하는 과정과; 임계값(threshold)에 따라 상기 노이즈 제거된 신호에서 수면(sleep) 상태 및 각성(wake) 상태를 결정하는 과정과; 상기 결정된 수면 상태 및 각성 상태의 개수(시간 또는 임의의 크기를 가지는 상태 구간수의 비율이라고도 함)에 따라 수면 효율을 계산하는 과정을 포함함을 특징으로 한다.
Abstract:
PURPOSE: A device and a method for measuring blood pressure are provided to correct the blood pressure of the artery of a finger or wrist to the brachial artery using a pulse wave transmission speed. CONSTITUTION: A blood pressure measurement unit(720) measures the blood pressure of a finger or wrist. A pulse wave transmission speed measuring unit(730) measures the pulse wave transmission speed. The pulse wave transmission speed measuring unit includes an electrocardiogram electrode unit and an optical sensor. The electrocardiogram electrode unit measures the electrocardiogram signal. The optical sensor measures the pulse wave signal. A controller(710) corrects the blood pressure of the finger or wrist to the brachial artery using the pulse wave transmission speed. A display unit(750) displays the corrected blood pressure of the finger or wrist.
Abstract:
A sensor for measuring bio information having thin thickness suitable for small device and an earphone including the same are provided to facilitate music listening function by arranging a sensor in an outer side of a speaker of an earphone. A sensor for measuring bio information comprises a light source(340), a light guide member(320), a light extracting member(420), a light coupling member(430), and a photo detector. The light source generates a first light. The light guide member guides the first light. The light extracting member is adjacent to the light guide member, and outputs the first light to outside of the light guide member. The light coupling member is adjacent to the light guide member, and couples a second light with the light guide member. The photo detector outputs a bio signal obtained by photoelectric conversion of the second light.
Abstract:
A system and a method for providing a framework to determine whether a disease exists for a mobile health management service are provided to predict a specific disease based on probability and feeds back a user's response about a prediction result, thereby improving prediction accuracy according as more bio-signals and symptoms are accumulated. A method for providing a framework to determine whether a disease exists for a mobile health management service comprises the following steps. A DCAP(Disease Combination Appearance Probability) array is generated(120). The DCAP array indicates the probability that each bio-signal and symptom of a combination array appear in a disease group. The DCAP array is formed based on an appearing frequency of a normal group and an appearing frequency of a disease group.
Abstract:
Cuffless and non-invasive wrist blood pressure measurement method and apparatus connected to a communication device are provided to facilitate early diagnosis of cardiovascular disease by indicating a quantitative value of accurate blood pressure in consideration of various measurement conditions. A cuffless and non-invasive wrist blood pressure measurement method includes the steps of: detecting an electrocardiogram signal and a pulse wave signal from a user's wrist by using an electrocardiogram sensor and a pressure sensor(F5); detecting special features from the detected electrocardiogram signal and pulse wave signal(F15); extracting variables required for calculating the highest and lowest blood pressure values by applying the detected special features to a blood pressure calculation algorithm(F17); and calculating user's highest and lowest blood pressure values by constructing a scatter diagram graph through the extracted variables.
Abstract:
An apparatus for measuring living body information is provided to use a little number of optical sources by using a waveguide. An apparatus for measuring living information comprises a first optical source(220), a second optical source(230), an optical detector(240), and a control unit(250). The first optical source is arranged on a surface of a biological skin, and illuminates a first light having a wavelength of a visible ray band to a surface of a skin. The second optical source is arranged on a surface of the skin, and illuminates a second light having a wavelength of a near infrared ray band to the surface of the skin. The optical detector is arranged on the surface of the skin to separate the first and second optical sources from each other. The optical source detects first and second detection lights, which are inputted from the skin of the first or second light, to an electric signal. The control unit drives the first and second optical sources sequentially.
Abstract:
본 발명에 따른 광의 전송 매체가 되는 광도파로를 갖는 평면광파회로의 제작 방법은, (b) 기판 위에 광의 전송 매체가 되는 기설정된 패턴의 초기 광도파로를 형성하는 과정과; (c) 상기 광도파로에 열을 가하여 리플로우시키는 과정을 포함한다. 광 모드 변환기, 리플로우, 평면광파회로, 3차원 테이퍼
Abstract:
PURPOSE: A microlens manufacturing method and an optical module manufacturing method using the microlens are provided to manufacture the microlens or a lens array having various sizes and shapes effectively. CONSTITUTION: A film(52) made of a microlens component material is formed on a substrate(51). A photoresist pattern(53) is formed on the film. A film structure(54) is formed by using an etching operation using the photoresist pattern. A microlens(55) is formed by using a reflow and thermal-processing the film structure. The film is an SiO2 film having dopants.