Abstract:
A method and an apparatus for authenticating a user using height of the user are provided to enhance convenience of the user by accurately authenticating users without using complicate user authentication information. A face recognition unit(122) detects a face region from an image obtained by a camera, and calculates a first height from an intersection between an elongated line from an FOV(Field of View) and a user face to a head tip of the user. A distance sensor(124) calculates a first distance from the camera to the intersection between the elongated line and the face of the user. A memory(130) stores a third height between a ground and the camera. A key calculator(125) calculates a second height from the camera to the intersection between the elongated line from the FOV and the user. The key calculator uses a moving angle of the camera and the first distance. A controller(100) controls the face recognition unit according to a user request, calculates the first height and the first distance, and calculates a height of the user.
Abstract:
본 발명은 광증폭기, 빔 조종기, 및 로렌드 원 형태를 갖는 오목 회절 격자를 단일 기판에 집적시켜 전기적으로 파장을 가변시킬 수 있는 파장 가변 광원 소자를 제공한다. 본 발명은 빔 조종기 내부의 두 개의 전극에 전기 신호를 인가하여 빔 경로를 조종하고, 조종된 빔의 경로는 회절 격자의 입사각을 변경시켜 발진 파장이 가변됨을 특징으로 한다. 본 발명은 전기적으로 파장 가변을 시키기 때문에 구조적으로 안정적이며, 파장 가변 속도도 빠른 장점을 가진다.
Abstract:
A parabolic waveguide-type collimated lens and a tunable external cavity laser diode including the same are provided to enhance performance of a wavelength multiplexing system by integrating a gain medium and a parabolic waveguide-type collimated lens. A semiconductor-based parabolic waveguide-type collimated lens includes an input manual waveguide(401) and a parabolic waveguide-type collimated lens(402). An end of the input manual waveguide and an incident end of the parabolic waveguide-type collimated lens are positioned at a focus F(a,0). The parabolic waveguide-type collimated lens is formed with a pair of symmetrical parabolic waveguides. An initial width(405) of the parabolic waveguide-type collimated lens uses a width of 4a. The magnitude of a parallel beam(403) is determined by a width(406) of the output terminal.
Abstract:
본 발명은 SDL(Specification and Discription Language) 및 MSC(Message Sequence Chart) 명세에 기반을 둔 객체 지향 CHILL 프로그램의 시험을 위한 테스트 케이스 자동 생성 방법을 제공하는데 그 목적이 있다. 본 발명에 따르면, MSC 및 SDL 명세를 기반으로 객체 지향 CHILL 프로그램을 테스팅하기 위한 테스트 케이스 생성 방법에 있어서, HMSC(Hybrid Message Sequence Chart) 명세에 테스트 기준을 적용하여 BMSC(Basic Message Sequence Chart) 명세를 생성하는 제 1 단계; 상기 BMSC 명세로부터 추출된 이벤트 시퀀스, 상기 SDL 명세로부터 추출된 멤버 함수 호출 및 동기적 시퀀스를 조합하여 테스트 드라이버를 구축하는 제 2 단계; 및 상기 구축된 테스트 드라이버로부터 테스트 기준을 적용하여 원하는 테스트 케이스를 추출하는 제 3 단계를 포함하여 이루어진 것을 특징으로 하는 객체 지향 CHILL 프로그램을 테스팅하기 위한 테스트 케이스 생성 방법이 제공된다.
Abstract:
본 발명은 방사형으로 진행하는 광을 편향하는 광 편향기에 관한 것으로, 제1 유효굴절율을 가지는 주변영역; 및 상기 제1 유효굴절율과 다른 제2 유효굴절율을 가지는 소정 형상의 편향패턴 영역을 포함하되, 상기 소정 형상의 편향 패턴 영역에 의해서, 방사형으로 진행하는 광은 특정점에서 출발하여 진행하는 것으로 편향된다. 이를 통해서, 광원의 이동 궤적은 직선, 원, 타원, 포물선 등 다양한 형태가 되도록 설계할 수 있다. 광 편향기, 방사 광, 편향
Abstract:
본 발명은 광소자 및 광소자의 제조 방법에 관한 것으로, 능동 도파로와 수동 도파로가 집적된 광소자에 있어서, 수동 도파로에 도핑되지 않은 클래딩막을 형성함으로써, 수동 도파로의 광 도파 손실을 줄일 수 있고, 능동 도파로의 전류 누설을 방지하기 위한 별도의 패시베이션막 형성공정을 생략할 수 있는 광소자 및 광소자의 제조 방법을 제공한다.
Abstract:
PURPOSE: A distributed reflection laser diode including a spot-size converter and a DFB(Distributed FeedBack) laser diode is provided to increase a single mode yield and an optical output regardless of a phase of a diffraction grid by forming the spot-size converter and the DFB laser diode with one body. CONSTITUTION: A distributed reflection laser diode including a spot-size converter and a DFB laser diode includes a substrate(700), a bottom clad layer(710), a diffraction grid(720), a passive waveguide layer(740), an intermediate clad layer(750), an active layer(760), a top clad layer(770), and a ridge(780). The bottom clad layer(710) is formed on the substrate(700). The diffraction grid(720) is formed on the bottom clad layer. A bottom clad layer and an optical waveguide layer are formed on the diffraction grid. The passive waveguide layer(740) is formed on the optical waveguide layer to transmit beams to the third region. The intermediate clad layer(750) is formed on the passive waveguide layer. The active layer(760) is formed on the intermediate clad layer to transfer the beams from the second region to the passive waveguide layer. The top clad layer(770) is formed on the active layer. The ridge(780) is formed on the top clad layer. The ridge has a tapering structure.
Abstract:
PURPOSE: A wavelength conversion type electro-optic clock multiplier is provided to perform simultaneously a process for multiplying a frequency of an optical clock and a process for wavelength conversions providing an optical transmission system combined a WDM(wavelength division multiplexing) with a TDM(time division multiplexing) system with a flexible use. CONSTITUTION: A wavelength conversion type electro-optic clock multiplier includes a first photo coupler, a semiconductor optical amplifier, and a second photo coupler. The first photo coupler(13) is used for dividing the continuous beam of desired wavelength to paths. The semiconductor optical amplifier(16) is used for performing a phase modulation process for the continuous beam passing through the first path of two paths according to an optical clock having an arbitrary wavelength. The second photo coupler(14) is used for coupling the output light source from semiconductor optical amplifier to the continuous beam outputted from the second path of the first photo coupler.
Abstract:
PURPOSE: A method for automatically creating a test case for testing an object-oriented chill program is provided to create a sequence of complete member functions by extracting information for testing an interactive operation between objects from an MSC(message sequence chart) detail and extracting information for testing an interactive operation in the objects from an SDL(specification and description language) detail, thereby combining the information. CONSTITUTION: A BMSC(basic message sequence chart) detail is created by applying a test standard to a HMSC(hybrid message sequence chart) detail. A test driver is constructed by combining an event sequence extracted from a BMSC detail, a call of a member function extracted from the SDL detail and a synchronized sequence. The wanted test case is extracted by applying a test standard from the test driver.
Abstract:
PURPOSE: The direct coupling type wavelength varying external resonator laser is provided to a working speed by controlling an optical power capable of making the high speed operation. CONSTITUTION: The wavelength varying external resonator laser (1000) comprises a gain medium (500), an optical waveguide structure (400), and the high frequency transmission media (600). The gain medium generates the optical signal according to an approved bias current. The optical waveguide structure comprises a mirror surface by combining with the gain medium, generates lasing inside the mirror facet when the approved bias current is over a threshold value. The high frequency transmission media comprises a dielectric body (610), a metallic thin film wire (620), and a matching resistance unit (630). The dielectric body controls the working speed of the optical signal by adding the high frequency signal in the approved bias current. The metallic thin film wire comprises a transmission line by combining with the dielectric body. The matching resistance unit performs a signal matching function by adding the resistance value of the gain medium.