baber/WOPTO huggingface dataset:
Patent KR-20080021494-A (KR)
Title: System and method of multi-user multiple transmitting and receiving antenna communications
Inventor: KIM SUNG JIN
IPC: H04L12/70
Filed: 2007-07-20
Abstract: A multi-user multi-transceiving antenna system and a method are provided to enable plural receivers to generate feedback information by extracting channel states of grouped antennas connected with a transmitter and to send the generated information, thereby decreasing feedback capacities. When plural pilot signals are received from a transmitter(100), a receiver(200) generates feedback information by measuring quality of channels through which the plural pilot signals are transmitted, and transmits the generated feedback information to the transmitter(100). When the generated feedback information is received, the transmitter(100) analyzes the received feedback information to schedule streams transmitted to the receiver(200). The transmitter(100) consists of a controller(110), a feedback information processor(140), a coding and modulating unit(120) and a multi-outputting unit(130), and the receivers(200) comprises a quality measuring unit(210), a detecting unit(220), a multi-receiving unit(230) and a decoding modulator(240).
Patent KR-20090010364-A (KR)
Title: Functional synthetic fiber and manufacturing method thereof
Inventor: YOU IN SIK
IPC: D01F1/10
Filed: 2007-07-23
Abstract: A method for preparing a functional synthetic fiber is provided to improve antibacterial effect, fungicidal effect and deodorizing effect and to enhance the feeling of tough. A method for preparing a functional synthetic fiber comprises the steps of wet pulverizing a functional material to a size of 1/3 of the diameter of fiber; drying the pulverized functional material; repulverizing it to a size of 1/2 of the diameter of the completed fiber by using pneumatic pressure to make a mineral material; and spinning the material containing 0.1-0.3 wt% of a functional material.
Patent KR-20090011528-A (KR)
Title: Fabricating method of printed circuit board
Inventor: LEE YANG JE
IPC: H05K3/42
Filed: 2007-07-26
Abstract: A fabricating method of a printed circuit board is provided to improve the flexibility and flexibility of the printed circuit board by reducing the thickness of the circuit pattern. In a fabricating method of a printed circuit board, a copper foil(4) is laminated on the single-side of the insulating layer(2). The insulating layer is one of the flexible insulating material or the rigid insulating material. The via hole(6) is formed on the disk by a drilling process. The seed layer(8) is formed on the via hole inner wall and insulating layer by electroless plating or the sputtering process. The electrolysis copper plating layer is formed on the seed layer, and at this time, the electrolysis copper plating layer is not formed on the copper foil. Rest seed layer, copper plating layer and copper foil excepting a via hole are etched. Therefore, the circuit pattern is formed at both sides of the insulating layer.
Patent KR-20090012642-A (KR)
Title: System and method for refining address and recording medium
Inventor: KIM NAK HO
IPC: G01C21/32
Filed: 2007-07-31
Abstract: An address arranging method and system and a recording medium for the method are provided to eliminate an address error and provide exact locations of new addresses and old addresses to facilitate mailing and product delivery. An address arranging system includes a client server(100) receiving client registration information including client information and client address information from a client terminal and transmitting the client registration information to an address arrangement server(105), and the address arrangement server receiving the client address information from the client server, standardizing the received client address information into a new address and transmitting the new address to the client server.
Patent KR-20080012216-A (KR)
Title: Display device and electronic equipment
Inventor: YUKIHITO IIDA
IPC: G09G3/30
Filed: 2007-07-31
Abstract: A display device and an electronic device are provided to maintain constant illumination brightness irrespective of the characteristic variation of an organic EL(Electroluminescence) device by using the bootstrap operation of a storage capacitor. A display device includes scan and signal lines(WSL101,WSL102,DTL101), pixels disposed at cross sections of the scan and signal lines, and a power line(DSL101,DSL102) disposed at respective pixels. Each of the pixels includes an illumination element(3D), a sampling transistor(3A), a driving transistor(3B), a storage capacitor(3C), and an auxiliary capacitor(3J). A gate of the sampling transistor is connected to the scan line, one of source and drain thereof is connected to the signal line, and the other thereof is connected to a gate of the driving transistor. One of source and drain of the driving transistor is connected to the illumination element and the other thereof is connected to the power line. The storage capacitor is connected between the source and gate of the driving transistor. One of the auxiliary capacitor is connected to the source of the driving transistor and the other thereof is connected to a power line of a previous column.
Patent KR-20090014790-A (KR)
Title: Method and apparatus of inputting character in mobile terminal thereof
Inventor: JANG JI WON
IPC: G06F3/00
Filed: 2007-08-07
Abstract: A terminal and a character input method thereof are provided to increase the availability of a display unit by inputting characters to a main display unit by using a character input unit. A controller indicates Java application of which execution is requested from user in a main display unit(S301); determines whether the first input window is indicated on the main display unit or not(S303); produces a screen conversion key and indicates in the main display unit(S305); determines whether or not the screen conversion key indicated is inputted from a user(S307); indicates the message informing the scene change to a main display unit (S308); indicates the second input window in the sub indicating part (S309); determines whether or not character is input to the second input window(S311); indicates the inputted character in the second input window of the sub indicating part(S313); determines whether or not the character additionally inputted to the second input window exists(S315); determines whether or not the signal requesting the storage of the character displayed on second input window is input (S317); stores the character displayed on second input window in the storage part(S319); indicates 'the message informing the scene change on the sub indicating part(S321); and indicates the stored character in the first input window(S323).
Patent KR-20090015454-A (KR)
Title: Semiconductor wafer and method of fabricating semiconductor device
Inventor: CHO YUN RAE
IPC: H01L21/78
Filed: 2007-08-08
Abstract: A semiconductor wafer and method of fabricating semiconductor device is provided to reduce burr and filling by controlling an angular in which the circumference of the TEG pad and the cutter trace are formed through sawing. In a semiconductor wafer and method of fabricating semiconductor device, a semiconductor wafer(100) has the scribe lane area(120) separating these from a plurality of unit semiconductor chips(190). The property test element and the test signal for testing the property test element are supplied while The TEG pad(110) is formed within the scribe lane area. Unit semiconductor chips(190a,190b) are separated according to the scribe lane area(120) by sawing(sawing) while the TEG pad and property test element are electrically connected. The defined cutting part(150) is formed according to the sawing result and the cutter trace(155). The width of the cutting part has to become narrower than that of the scribe lane area(120).
Patent KR-20090003063-A (KR)
Title: Structure of toilet apperatus for ultraviolet lamp
Inventor: IM JAE YOUNG
IPC: A47K13/00
Filed: 2007-08-20
Abstract: A structure of a toilet for sterilization having an ultra-violet ray lamp is provided to be infected by all kinds of microbes from the toilet by maintaining a seating rest part of the toilet in a bathroom into asepsis state and to sterilize an inside of the toilet effectively using the ultra-violet ray lamp by stretching and falling the folded ultra-violet ray lamp when the cover is closed. A structure of a toilet for sterilization on which an ultra-violet ray lamp is mounted contains a seating rest(20), a cover(10), a lamp insertion hole formed inside the cover of the toilet, an ultra-violet ray lamp case on which the ultra-violet ray lamp is mounted inside the case in which a top cap and a bottom cap are combined and in which the ultra-violet ray lamp is adhered inside the lamp insertion hole by using a hinge, an ultra-violet ray lamp pushing power switch which is mounted on an inside of the cover and is operated according to opening and shutting of the cover and a mode controlling part(80) controlling a sensitivity of a light sensor controlling an external lighting lamp and an internal lighting lamp according to the change of the intensity of the light of indoor. The internal lighting lamp is mounted inside the cover.
Patent KR-20090020267-A (KR)
Title: Wireless network connection system and method for operating the same
Inventor: MXJPUNITHAN
IPC: H04B7/24
Filed: 2007-08-23
Abstract: A wireless network connection system and an operation method thereof are provided to establish a connection to a specific wireless network by using a connection identifier stored in the data of an RFID tag, thereby enhancing the security by allowing only the terminal device owner who physically enters the wireless network, and dispersing the traffic flow of a specific AP within the wireless network. A wireless network connection system comprises the followings: a wireless communication interface(21) for performing the communication interface with a premises wireless network; an RFID reader(22) for reading a connection identifier from an RFID tag which is installed at the entrance of the premises; a storage part(25) in which an entry data field where the data of the RFID tag is stored and an exit data field where the data of an RFID tag installed at the exit of the premises is stored are stored; and a controller(26) which performs the wireless communication standard algorithm for connection to a wireless network having the read connection identifier.
Patent KR-20070104311-A (KR)
Title: Optical pick-up apparatus, and objective lens
Inventor: ARAI NORIKAZU
IPC: G11B7/135
Filed: 2007-09-21
Abstract: An optical pickup device and an object lens are provided to reproduce and to record the information on two kinds of optical discs having a transparent base plate of which the thickness is different according to light sources of two mutually different wavelengths. In an object lens, the information is reproduced from a first optical information recording medium(22) by using a first light source emitting a first light flux having a first wavelength of lambda1. The first optical information recording medium has a first transparent base plate(21) having t1 thickness. The object lens reproduces information from a second optical information recording medium having a second transparent base plate while recording the information to the first optical information recording medium synchronously. The object lens is used for an optical pickup device and being shared when reproducing or recoding the information for the first and the second optical information recording mediums. The object lens has a plurality of steps on an optical surface. The difference between the maximum value and the minimum value of the steps for an optical axis direction are bigger than 1.5 and smaller than 6 times. The maximum step is located more further from a periphery of the optical surface than the minimum step.
Patent KR-20090030970-A (KR)
Title: Manufacturing method of substrate
Inventor: JEONG SUNG WON
IPC: H05K3/46
Filed: 2007-09-21
Abstract: A method for manufacturing a substrate is provided to facilitate the extraction of a circuit laminate by using a supporter including an oxide metal layer. A supporter includes a base material and a first metal layer. The base material is made of the metal. A first metal layer is formed in one side of the base material(S210). The whole or a part of the first metal layer is oxidized. A first metal oxide layer is formed(S220). A second metal layer is formed in one side of the first oxide metal layer(S230). A circuit laminate is formed in one side of the second metal layer(S240). The first oxide metal layer and the second metal layer are separated. The circuit laminate is separated from the supporter(S250). The second metal layer is selectively etched to the predetermined shape(S260). The solder resist layer is formed in one side of the circuit laminate(S270).
Patent KR-20090032602-A (KR)
Title: The method that drying sludge of the type of ventury ejector using difference between air current and atmospheric pressure
Inventor: CHOI JONG HYEA
IPC: C02F11/12
Filed: 2007-09-28
Abstract: A sludge drying method enabling sludge of a sewage/wastewater treatment plant to be recycled is provided to prevent emission of toxic gas by a high fever and to reduce drying costs. A venturi eject typed sludge drying method using a difference between an air current and atmospheric pressure includes a step for drying the sludge of 15% of fine powder by using a venturi eject typed apparatus. A sludge drying apparatus includes a hopper(1), a biosolid storage bin(19), a dry powder storage bin(17), a screw conveyor(2a), transfer conveyors(16b,16c), a mixer(3), a screw conveyer(2b), an air compressing fan(6), hot blast machines(16b,16c), a ring duct drying chamber(8), a dust collector and dust collecting hoppers(13a,13b). Water content 60~85% of wastewater sludge is inflows in the hopper. The screw conveyer and the transfer conveyer transfer the wastewater sludge, and the biosolid sludge drying powder to the mixer.
Patent KR-20090034654-A (KR)
Title: Hydrogen generating apparatus and fuel cell power generation system
Inventor: CHAE KYOUNG SOO
IPC: C25B1/06
Filed: 2007-10-04
Abstract: A hydrogen generator and a fuel cell power plant system are provided to obtain a fuel battery having long lifetime by preventing consumption of electrode due to voluntary chemical reaction by using an absorbent member. A hydrogen generator(300) comprises: a reaction chamber(310) which accommodates electrolytic solution and a vent for exhausting hydrogen is formed in; an anode electrode(320) which is positioned within the reaction chamber and generates electronics through electric ionization effect; a cathode electrode(330) which is positioned within the reaction chamber and generates the hydrogen through the chemical reaction between the electrolytic solution and the electronics; and an absorbent member(350) which absorbs or emits the electrolytic solution corresponding to pressure gradient delivered from the inside or outside of the reaction chamber.
Patent KR-20090039549-A (KR)
Title: Tag authentication method using rotation and tag and reader for executing the method
Inventor: KIM EUN AH
IPC: H04L9/08
Filed: 2007-10-18
Abstract: A tag authentication method using the rotation and a tag and a reader for executing the method are provided to completely synchronize the leader and the tag by using the rotation factor and the rotation function. A tag authentication method using the rotation is as follows. A reader produces the first random number as the challenge(S301). A tag produces the second random number as the blinding factor(S302). The first random number is transmitted to the tag by the reader(S303). The tag produces the rotation factor by using the first random number and the first secrete value(S304). The tag calculates the first verification value based on the second random number, the second secrete value, and the rotation factor(S305). The tag transmits the first verification value and the second random number generated as the blinding factor to the reader(S306). The reader produces the rotation factor by using the second random number and the first secrete value(S307). The reader calculates the second verification value based on the first random number, the second secrete value, and the rotation factor(S308). The first verification value and the second verification value are compared by the reader(S309).
Patent KR-20080041106-A (KR)
Title: Apparatus and method for detecting intrusion using fbg sensors
Inventor: LEE GEUM SUK
IPC: G08B13/18
Filed: 2007-10-22
Abstract: An intrusion detecting apparatus and a method using an FBG(Fiber Bragg Grating) sensor are provided to reduce a cost for building the system by using an optical switch and to expand a detection range over 10 times. An intrusion detecting apparatus using FBG sensors is composed of a sensing unit optical fiber(50) for transmitting an optical signal and functioning as a sensing unit at the same time and the FBG sensors separately installed to prevent the tensile force of the sensing unit optical fiber from being transmitted. A detection range is divided. The intrusion detecting apparatus determines intrusion by measuring the intensity of each wavelength of the FBG sensors. The sensing unit optical fiber has a circular path.
Patent KR-20090043816-A (KR)
Inventor: CHANG WOONG SEONG
IPC: B21C37/04
Filed: 2007-10-30
Abstract: 와이어(wire)의 외피에 이종 금속 재질을 클래드(Clad)하여 두 가지 금속의 성질을 물리적으로 결합하고, 그 특성을 이용할 수 있는 클래드 금속 와이어 제조방법을 제공한다. 클래드 금속 와이어 제조방법은 스트립(Strip) 상태로 공급되는 클래드 성형부재를 제1 성형롤러로 이송하여 일부가 개구된 U자 형태로 성형하는 단계, U자 성형된 클래드 성형부재 내측에 피딩장치로 와이어를 삽입하는 단계, U자 성형되어 와이어가 삽입된 클래드 성형부재를 제2 성형롤러로 이송하여 클래드 성형부재의 개구된 일부를 닫아 O자 형태로 성형하는 단계, O자 형태의 클래드 성형부재의 이음매 부분을 용접장치로 용접하는 단계, 및 용접된 클래드 성형부재를 인발장치로 이송하여 클래드 와이어 형태로 인발하는 단계를 포함하며, 인발되는 클래드 와이어는 내부에 삽입된 와이어가 압착된 상태에서 기 설정된 직경으로 형성된다. 
     
     클래드(Clad), 와이어(Wire), 레이저, 고속 용접, 이종 금속, 용접 재료
Patent KR-20090044573-A (KR)
Inventor: KO SUNG WOO
IPC: H01L21/027
Filed: 2007-10-31
Abstract: 본 발명은 반도체 소자의 제조 방법에 관한 것으로서, 보다 상세하게는 반도체 기판에 형성된 피식각층 상부에 포토레지스트 패턴을 형성하는 단계; 상기 포토레지스트 패턴을 실릴화제를 이용하여 실릴레이션시킨 후 유리전이온도 이상의 온도에서 베이크하여 실릴레이션된 포토레지스트 패턴을 리플로우시키는 단계; 및 상기 리플로우된 포토레지스트 패턴에 O 2  플라즈마 공정을 수행하는 단계를 포함하는 반도체 소자의 제조 방법에 관한 것이다.  본 발명의 방법에 따르면 포토레지스트막의 리플로우시 두꺼운 포토레지스트막을 사용함에 따른 레지스트 균일성 불량에 의한 미세 콘택홀의 CD 균일성 열화 현상을 개선할 수 있다. 
       
     레지스트 리플로우, 실릴레이션, 패턴 형성
Patent KR-20070112355-A (KR)
Title: Water purifier use of heat pipe
Inventor: HWANG JAY YOUNG
IPC: B01D35/00
Filed: 2007-11-05
Abstract: A water purifier is provided to be more hygienical and have improved cooling performance by solving hygienical and functional problems of a conventional water purifier. In a water purifier comprising a cold water intake pipe(4) which is connected between a cold water tank(1) and a cold water intake cock(3), the water purifier is characterized in that a heat pipe(2) is attached to the cold water intake pipe and an evaporator(5a) of a first cooler such that the cold water intake pipe is secondly cooled to inhibit multiplication of bacteria in the cold water intake pipe and supply cold and clean water to initial drinking water during the intake by maintaining the water in a cold state even when water stagnates in the cold water intake pipe, thereby creating an environment that is inappropriate for bacteria multiplication due to a contamination source flown in from a water outlet of the cold water intake cock.
Patent KR-20080005467-A (KR)
Title: Method for operating event place booth arrangement
Inventor: PARK DONG MYUNG
IPC: G06Q50/10
Filed: 2007-11-05
Abstract: A method for managing booth arrangement in an event is provided to induce members of a fan club to visit a website related to an event and promote an event sponsor system by making reserved customers or general users select a desired sponsor booth, and assigning priority for installing the sponsor booth to each sponsor according to ranking of visit reservations requested to each sponsor booth. A server transmits a plurality of booth information of the event sponsors to a client terminal(1015). The server receives selection information for the desired sponsor booth from the client terminal(1020). The server classifies the received selection information into each sponsor booth and counts the number of clients wanting to visit the sponsor booth(1035). The server assigns the priority for installing the sponsor booth to each sponsor or arranges the sponsor booth close to the event according to the ranking of the visit reservations requested to each sponsor booth(1045).
Patent KR-20090046519-A (KR)
Inventor: HAN SEOK MIN
IPC: G06Q20/34
Filed: 2007-11-06
Abstract: 본 발명은 카드 결제 처리 시스템 및 그 제어방법에 관한 것이다. 본 발명에 따른 카드 결제 처리 시스템은, 카드 결제에 따른 결제 승인 처리 및 입금 처리를 수행하고, 카드 결제가 이루어진 가맹점 정보를 포함하는 처리결과 데이터를 메시지 전송 서버로 전송하는 금융권 서버와; 상기 금융권 서버로부터 처리결과 데이터가 수신되면, 특정 아이디(ID : IDentification)를 생성하고, 수신되는 처리결과 데이터를 기초로 한 처리결과 문자 메시지와 상기 생성된 특정 아이디를 포함하는 전송 메시지 데이터를 생성하며, 생성된 전송 메시지 데이터를 상기 금융권 서버로부터 수신되는 처리결과 데이터의 가맹점 정보에 대응되는 가맹점 이동통신 단말기로 전송하는 메시지 전송 서버와; 상기 메시지 전송 서버로부터 상기 전송 메시지 데이터가 수신되면, 상기 전송 메시지 데이터에 포함된 처리결과 문자 메시지를 대기화면 상에 표시하는 한편 상기 전송 메시지 데이터에 포함된 특정 아이디를 기초로 상기 처리결과 문자 메시지를 다른 문자 메시지와 구분하여 저장하는 가맹점 이동통신 단말기를 포함하는 것을 특징으로 한다.
Patent KR-20090051579-A (KR)
Inventor: JANG JIN YEOL
IPC: B05B7/02
Filed: 2007-11-19
Abstract: 본 발명의 예시적인 실시예는 ⅰ)파지부와 분사 노즐부를 가지면서 상기 분사 노즐부를 통해 클리어 도료를 압축 공기로서 분사하는 스프레이 몸체와, 상기 파지부에 대응하여 상기 분사 노즐부 측에 회동 가능하게 장착되는 트리거로서 이루어지는 도료 분사 건유닛과, ⅱ)상기 스프레이 몸체를 거치시키기 위한 적어도 하나의 거치 바아가 구비되고, 상기 스프레이 몸체의 분사 노즐부가 끼워지는 지지홀이 바닥면에 형성되는 행거 몸체가 구비되어 상기 분사 노즐부를 통해 분사되는 상기 클리어 도료를 상기 지지홀을 통해 부스의 바닥으로 배출시키는 행거유닛과, ⅲ)상기 행거 몸체의 일측에 형성되는 장착부에 장착되며, 작동압의 공급 유무에 따라 작동 로드가 상기 도료 분사 건유닛의 트리거 쪽으로 전후진되는 제1 작동 실린더와, ⅳ)상기 제1 작동 실린더와 연결되게 설치되어 작동압의 공급 유무에 따라 상기 제1 작동 실린더를 상하 방향으로 승강시키는 제2 작동 실린더와, ⅴ)상기 제1 작동 실린더의 작동압을 공급 또는 배출시키도록 제어기로부터 입력되는 전기적 신호에 따라 유로를 가변하여 주는 제1 솔레노이드 밸브와, ⅵ)상기 제2 작동 실린더의 작동압을 공급 또는 배출시키도록 상기 제어기로부터 입력되는 전기적 신호에 따라 유로를 가변하여 주는 제2 솔레노이드 밸브를 포함하여, 도료 분사 건유닛을 장시간 동안 사용하지 않는 경우, 도료 분사 건유닛을 통해 클리어 도료를 주기적으로 분사시킴으로써 지관이나 클리어 도료 공급 호스 또는 도료 분사 건유닛의 내부에 정체되어 있는 클리어 도료가 굳는 것을 방지할 수 있도록 하는 차체 도장용  클리어건 자동 분사장치를 제공한다. 
       
     차체, 도장, 클리어, 도료, 자동, 분사
Patent KR-20090053094-A (KR)
Inventor: CHONG JONG WHA
IPC: H04B1/7163
Filed: 2007-11-22
Abstract: 차분적 이원 직교 첩 스프레드 스펙트럼에서의 수신 신호 검출 장치 및 그 방법이 개시된다. 
     본 발명에 따른 차분적 이원 직교 첩 스프레드 스펙트럼에서의 수신 신호 검출 장치는 샘플링된 수신 신호에 크로스 코릴레이션을 수행하여 수신 복소 샘플을 각각의 서브 첩 신호로 분할하는 복수 개의 정합 필터를 포함하는 정합 필터부; 상기 복수 개로 분할된 서브 첩 신호를 피코넷 넘버에 따라 순열 조합하는 순열 조합부; 상기 순열 조합된 서브 첩 신호와 미리 결정된 시간에 따라 지연된 서브 첩 신호를 이용하여 차분 곱셈 연산을 수행하는 차분 곱셈부;  상기 수행된 차분 곱셈 연산의 결과값을 상기 서브 첩의 넘버에 따라 미리 결정된 지연 시간에 따라 지연시키고, 상기 지연된 차분 곱셈 연산의 결과값을 총합하여 총 에너지를 연산하는 가산부; 상기 샘플링된 수신 신호의 순수 총 에너지를 연산하는 정규화 에너지 생성부; 및 상기 연산된 총 에너지와 상기 수신 신호의 순수 총 에너지의 비에 따라 상기 수신 신호를 검출하여 출력 신호를 생성하는 제어부를 포함한다. 
     본 발명에 의하면, 정합 필터를 이용하여 수신 신호를 참조 신호와 크로스 코릴레이션을 수행하고, 그 결과를 차분 곱셈을 통하여 각 서브 첩으로부터 얻은 신호를 서브 첩 넘버에 따라 지연 시킨 후 그 결과를 가산하여 그 결과를 수신 신호의 순수 총 에너지로 나누어 결정 변수를 이용하여 신호의 유무를 판별함으로써, 서로 다른 피코넷들로 인한 신호의 폴스 알람 확률(false alarm probability)와 미 스 디텍션 확률(miss detection probability)을 낮출 수 있으므로 멀티 피코넷 환경에서 동시에 데이터 송수신을 수행할 수 있고, 수신 신호 에너지의 피크 값을 정확하게 산출할 수 있으므로 심볼 타이밍을 정확하게 계측할 수 있으며, 기존의 방법에 비해 4dB 이하의 낮은 SNR 환경에서도 패킷 검출을 용이하게 수행할 수 있는 효과가 있다.
Patent KR-20080055632-A (KR)
Title: Pre-exposure and curing of photo-sensitive material for optical data storage
Inventor: HOSSFELD WOLFGANG
IPC: G11B7/125
Filed: 2007-11-22
Abstract: Pre-exposure and curing of a photo-sensitive material for an optical data storage is provided to direct first and second light beams toward a holographic storage medium, using a spatial light modulator, in order to simplify the composition of an optical storage medium and layout of the pickup. An apparatus(1) for writing in a holographic storage medium(10) includes a first light source(2) for emitting first light beams(7,8), a second light source(14) for emitting a second light beam(15), and a spatial light modulator. The spatial light modulator, which switches between at least two states to modulate at least a part of the first light beam, is arranged to direct the first light beam toward a holographic storage medium in a first state and to direct the second light beam toward the holographic storage medium in a second state.