Samsung Electronics Co., Ltd.

Korea Advanced Institute of Science and Technology

Partron Co., Ltd

Jea-Hyuck Lee

Jae-geol Cho

Yun-Je Oh

Seong-Taek Hwang

Dae-Kwang Jung

June-Hyeon Ahn

Dong-Jae Shin

Min-Hyoung Lee

Jung-Kee Lee

Jung-taek Oh

Jae-Hong Kim

Sun-tae Jung

Seong-je Cho

Jae-Young Huh

Chul-ho Cho

Jeong-Seok Lee

Kyu-sub Kwak

Dong-Churl Kim

Hoi-Jun Yoo

Seung-min Lee

Jae-Geol Cho

Su-Ho Lee

Jung-Taek Oh

Tae-won Kim

Seong-Wook Jo

Jin-Hong Min

Hyun-Woo Cho

Tae-Hwan Roh

Un-Soo Ha

Shin-Hee Cho

An electronic device for enhancing accuracy upon contactless body temperature measurement is provided. The electronic device includes an image sensor for obtaining an image of an object, a temperature sensor disposed at a position adjacent to the image sensor for measuring a temperature of the obtained object, and a controller for performing control to determine the temperature of the object using a focal length of a camera module including the image sensor corresponding to a time of obtaining the image of the object and a temperature output from the temperature sensor corresponding to the time of obtaining the image of the object.

Apparatus and method for enhancing accuracy of a contactless body temperature measurement

Disclosed is a wearable electronic device including a body portion wearable on a human body, a circuit portion mounted on the body portion, and a sensor portion contacting the human body to measure a bio signal, wherein the sensor portion is detachably coupled to the body portion.

Wearable electronic device

A biometric information measurement device is provided. The device includes a substrate unit including components required for operation of the biometric information measurement device, and electrodes for measuring biometric information. The components and the electrodes are disposed on a single side of the substrate unit. The device also includes a case having a first surface and a second surface. The first surface is attached to an attachment pad for attaching the biometric information measurement device to a body, and the second surface faces the single side of the substrate unit. The electrodes are each exposed through respective openings in the first surface.

Wearable biometric information measurement device

An electronic device for enhancing accuracy of a contactless body temperature measurement is provided. The electronic device includes a camera module for determining whether an image of an object is in focus, a temperature sensor for measuring a temperature of the object, and a processor for determining, as a temperature of the object, a temperature output from the temperature sensor corresponding to a focus matching time as a result of determining whether the image of the object is in focus.

A mobile device and a method thereof are provided. The mobile device includes a display configured to display an image; a metal bezel surrounding an outer perimeter of the display; a temperature sensor configured to measure a temperature of an object via the metal bezel; and a controller configured to control the display to output the temperature measured using the temperature sensor.

Mobile device having temperature sensor and method of operating same

Provided is a near field wireless communication apparatus that uses magnetic coupling and a method for operation of the apparatus, in which the magnetic coupling is used to transmit data or clock information with low power and high efficiency. A pulse generator of the near field wireless communication apparatus generates a pulse signal corresponding to transmission digital data to be transmitted. When the transmission digital data is '1,' the near field wireless communication apparatus modulates the data into the pulse signal and transmits the pulse signal. When the data is '0,' the near field wireless communication apparatus does not output the pulse.

Near field wireless transmission/reception method and apparatus

A WDM (Wavelength Division Multiplexing) optical transmitter using a Fabry-Perot laser is disclosed. The WDM optical transmitter includes a light source for outputting incoherent light of a prescribed wavelength bandwidth, a circulator having the first to the third ports, for outputting the incoherent light received at the first port coupled to the light source to the second port, and outputting an optical signal received at the second port to the third port coupled to the external waveguide, a WGR (Waveguide Grating Router) having a multiplexing port (MP) coupled to the second port of the circulator and a plurality of demultiplexing ports (DPs), for performing WD (Wavelength Division) demultiplexing on the incoherent light received at the MP to output WD-demultiplexed signals to the plurality of DPs, and performing WD multiplexing on a plurality of channel signals received at the plurality of DPs to output WD-multiplexed signals to the MP, and a plurality of FB (Fabry-Perot) lasers respectively connected to the DPs of the WGR, each FP laser is comprised of a laser cavity, an antireflection coating layer deposited at one end of the laser cavity facing a corresponding DP, and a high reflection coating layer deposited at the other end of the laser cavity, whereby an optical injection efficiency increases and an influence of reflected light is reduced, resulting in facilitation of a wavelength-locked phenomenon.

Wavelength division multiplexing optical transmitter using Fabry-Perot laser

Disclosed is a wavelength division multiplexed passive optical network (WDM PON) system including a central office, a remote Node, and an optical fiber coupled between the central office and the remote node, wherein the central office includes an optical power splitter coupled to the optical fiber, wherein the optical power splitter (1) divides an upstream optical signal from the optical fiber into a plurality of upstream optical signals having substantially similar power and (2) outputs downstream optical signals to the optical fiber, and a plurality of optical transceiver modules to (1) receive the plurality of upstream optical signals, and (2) output the downstream optical signals to the optical power splitter, and wherein at least one of the optical transceiver modules having an optical transmitter including a semiconductor optical amplifier and a reflection-type optical fiber grating located at a predetermined distance from the semiconductor optical amplifier, the optical transmitter transmitting light of a pre-set wavelength resonating between the SOA and reflection-type optical fiber grating; and wherein at least one of the optical transceiver modules having an optical receiver having an optical fiber grating for transmitting light of a predetermined wavelength and an optical detector for detecting light passing through the optical fiber grating.

Wavelength division multiplexed passive optical network system

Disclosed is a method for maintaining wavelength-locking of a Fabry-Perot laser regardless of a change of external temperature even though a temperature controller is not used, and a wavelength division multiplexing (WDM) light source using the method, as an economical light source used in a WDM optical communication field. The WDM light source comprises a Fabry-Perot laser for injecting spectrum-spliced incoherent light to amplify and output only an oscillation mode matching with a wavelength of the injected light, and a bias controlling unit for adjusting a bias current supplied to the Fabry-Perot laser to a value adjacent to a threshold current of the Fabry-Perot laser, whose threshold current is changed according to a temperature and a relationship between the injected light changed depending to a temperature and a wavelength of the oscillation mode. Therefore, the bias current having a value adjacent to the threshold current of the Fabry-Perot laser is supplied to the Fabry-Perot laser, so that the Fabry-Perot laser can maintain an excellent transmission characteristic regardless of a change of temperature even though a temperature controller is not used.

Method for maintaining wavelength-locking of Fabry-Perot laser regardless of change of external temperature and WDM light source using the method

A method for maintaining the mode-locked state of a Fabry-Perot (FP) laser and a WDM light source using the same method for use in WDM optical communication are disclosed. The mode-locked state can be maintained irrespective of temperature change, without use of a temperature controller, by spectrum-slicing the incoherent light generated by a light source element and injecting the spectrum-sliced light to the FP laser, then the FP laser amplifies and outputs only a lasing mode coinciding with the wavelength of the injected light, wherein a lasing-mode interval of the FP laser is set to be less than a 3 dB linewidth of the injected light, so that at least one lasing mode exists inside the 3 dB linewidth of the injected light irrespective of changes in external temperature.

Method for maintaining mode-locked state of fabry-perot laser irrespective of temperature change and WDM light source using the same method

Growing community of inventors

Gyeonggi-do, South Korea

Jea-Hyuck Lee