baber/WOPTO huggingface dataset:
Patent KR-20060025535-A (KR)
Title: High performance gain cell architecture
Inventor: WORDEMAN MATTHEW
IPC: G11C7/00
Filed: 2004-06-17
Abstract: A memory architecture that utilizes single-ended dual-port destructive write memory cells and a local write- back buffer is described. Each cell has separate read and write ports that make it possible to read-out data from cells on one wordline in the array, and subsequently write-back to those cells while simultaneously reading-out the cell on another wordline in the array. By implementing an array of sense amplifiers such that one amplifier is coupled to each read bitline, and a latch receiving the result of the sensed data and delivering this data to the write data lines, it is possible to' pipeline'the read-out and write-back phases of the read cycle. This allows for a write-back phase from one cycle to occur simultaneously with the read-out phase of another cycle. By extending the operation of the latch to accept data either from the sense amplifier, or from the memory data inputs, modified by the column address and masking bits, it is also possible to pipeline the read-out and the modify-write-back phases of a write cycle, allowing them to occur simultaneously. The architecture preferably employs a nondestructive read memory cell such as 2T or 3T gain cells, achieving an SRAM-Eke cycle and access times with a smaller and more SER immune memory cell.
Patent KR-20070083244-A (KR)
Title: Multiplexer circuit
Inventor: TANAKA YOSHITO
IPC: H03K17/693
Filed: 2004-11-22
Abstract: A relay switch is provided between the output terminal of each of multiplexers included in a certain layer of a tree structure and the input terminal of a multiplexer included in a layer immediately overlying the certain layer. The relay switch is turned on which is connected to each of ones of the multiplexers included in the certain layer and being currently related to a signal selection, while the relay switch is turned off which is connected to each of the other ones of the multiplexers included in the certain layer. In this way, the resistance and capacitance components of the multiplexers corresponding to the relay switches that are turned off can be separated from the tree structure to reduce the values of the time constants CR that affect the working speeds of the multiplexers. This eliminates the problem that the working speed of the whole multiplexer circuit is reduced due to increase of the time constants.
Patent KR-20060006979-A (KR)
Title: New modulators of dopamine neurotransmission
Inventor: ANDERSSON BENGT
IPC: C07D211/18
Filed: 2000-12-22
Abstract: New 3-substituted 4-(phenyl-N-alkyl)- piperazine and 4-(phenyl-N-alkyl)-piperidine compounds of Formula (1), wherein X N, CH, or C, however X may only be C when the compound comprises a double bond at the dotted line; R1 is OSO2 CF3, OSO2CH3, SOR3, SO2R 3, COR3, NO2, or CONHR3 and when X is CH or C R1 may also be CF3, CN, F, C1, Br, or I; R 2 is a C1-C4 alkyl, an allyl, CH2SCH 3, CH2CH2OCH3, CH2CH2 CH2F, CH2CF3, 3,3,3-trifluoropropyl, 4,4,4- trifluorobutyl, or - (CH2) - R4; R3 is a C 1-C3 alkyl, CF3, or N(R2)2; R4 is a C 3-C6 cycloalkyl, 2-tetrahydrofurane or 3-tetra-hydrofurane, as well as pharmaceutically acceptable salts thereof are disclosed. Also pharmaceutical compositions comprising the above compounds and methods wherein the above compounds are used for treatment of disorders in the central nervous system are disclosed.
Patent KR-20060017884-A (KR)
Title: Computer input device tracking six degrees of freedom
Inventor: FUN WEY
IPC: G06F3/042
Filed: 2004-06-10
Abstract: An input device with three-dimensional, six-degrees-of-freedom data input for a computer having an array of tracking points (110) defining a first axis and a second axis or plane is described. Light reflected from, or given off from the tracking points (110), is captured by an imaging device (130). From the two-dimensional images captured, three-dimensional data relating to the position and orientation of the input device may be obtained from the relative positions of the tracking points (110) by a provided algorithm and lookup table. In the preferred embodiment of the invention, tracking points on the input device which is in the form of a wand (101) with a cross piece (120) and an imaging device (130) allow computer users to input swinging movements into a virtual environment for gaming or three-dimensional applications.
Patent KR-20070073462-A (KR)
Title: Interpolating apparatus and method in digital communication system
Inventor: HWANG YONG SUN
IPC: H04B1/707
Filed: 2006-01-05
Abstract: An interpolation apparatus and a method in a digital communication system are provided to reduce a calculation quantity, power consumption, and a size by replacing a majority of multiplying calculation with simple bit shifting. An interpolation apparatus which interpolates an input signal through a multi step includes a first interpolator(311), an upsampler(313), and at least one interpolator(317,323). The first interpolator(311) outputs data which satisfies a higher condition than a predetermined performance based on the number of predetermined samples for an input signal. The upsampler(313) sets an upsampling factor as two. At least one interpolator(317,323) performs a bit shifting calculation to remove an image element which is generated by an upsampling operation of the upsampler(313). The upsampler(313) inserts samples of a zero value of receiving data into a conventional sample. An interpolation filter(315) removes the image element generated by the upsampling of the upsampler(313).
Patent KR-20070074021-A (KR)
Title: Method for display the time and it's fashion watch device
Inventor: JI IN HO
IPC: G04G9/00
Filed: 2006-01-06
Abstract: A time display method and a fashion watch using the same are provided to display second, minute, and hour by defining various colors correspondingly to each number and displaying the color corresponding to the number through a color bar. In a method for displaying the time by using a color display device through a digital watch function, colors corresponding to the numbers are set in advance and then the time is displayed by the color. Each zone including two color bars(110) is formed correspondingly to hour, minute, and second in the color display device. The time is displayed by showing the colors of each color bar correspondingly to the present time. Hour, minute, and second are displayed by using the color bars and digital numbers together.
Patent KR-20070096126-A (KR)
Title: Power amplifier circuit reducing emi
Inventor: LEE JONG HAENG
IPC: H03F3/217
Filed: 2006-01-13
Abstract: A power amplifier circuit reducing EMI(Electro Magnetic Interference) is provided to reduce the EMI by implementing a plurality of pull-up transistors, pull-down transistors, and a delay circuit. A power amplifier circuit reducing EMI includes a power transistor unit(30). The power transistor unit(30) generates an output signal based on a predetermined pulse width modulation signal. The power transistor unit(30) has a plurality of transistors, and a delay circuit unit which drives the plurality of transistors at predetermined time intervals based on the pulse width modulation signal. The plurality of transistors include a plurality of pull-up transistors(P1-Pn) sequentially turned on based on the pulse width modulation signal, and a plurality of pull-down transistors(N1-Nn) sequentially turned on based on the pulse width modulation signal.
Patent KR-20070075963-A (KR)
Title: Apparatus and method for providing supplementary service using portable terminal
Inventor: LEE WON SEOK
IPC: H04B1/40
Filed: 2006-01-17
Abstract: An additional service supply device using a portable terminal and a method thereof are provided to enable the terminal to supply an additional service using a motion sensing method. A portable terminal outputs a command in accordance with game performance when a game is started(501,503). The terminal checks whether motion is sensed or a button is inputted according to the outputted command(505). If so, the terminal compares the command with an inputted value(507). If the inputted value and the command are identical, the terminal generates a predetermined effect in accordance with consistency(509). If the value and the command are not identical, the terminal generates a predetermined effect in accordance with inconsistency(511,513).
Patent KR-20060086858-A (KR)
Inventor: HALL JEFFERSON W
IPC: G01R31/14
Filed: 2006-01-24
Abstract: 일실시예에서, 고전압 요소는, 고전압 요소의 동작 동안 공핍될 수 있는 도핑된 반도체 영역 위에 놓이게 형성된다.  
       
     고전압 요소, 도핑 영역, 도전형, 트랜지스터, 절연체
Patent KR-20060088033-A (KR)
Inventor: HIROSE MASATOSHI
IPC: G02B9/12
Filed: 2006-01-26
Abstract: 광각 렌즈 시스템(wide-angle lens system)은 물체 쪽으로부터, (1)구형으로 형성된 양면을 갖고 물체 쪽으로 볼록한 메니스커스(meniscus) 모양을 가지며 마이너스 광학 파워를 갖는 유리로 형성된 제1 렌즈 요소와, (2)화상 쪽으로 볼록한 메니스커스 모양을 갖고 플러스 광학 파워를 갖는 플라스틱으로 형성된 제2 렌즈 요소와, (3)구경 조리개와, (4)화상 쪽으로 볼록한 메니스커스 모양을 갖고 플러스 광학 파워를 갖는 플라스틱으로 형성된 제3 렌즈 요소를 포함하고, 광각 렌즈 시스템은 총 3개의 렌즈 요소들을 포함한다.  이는 우수한 광학 성능을 갖는 저렴하고 콤팩트한 초광각 렌즈 시스템을 제공하게 한다. 
       
     광각 렌즈 시스템, 고체 화상 감지기, 렌즈 요소, 구면렌즈, 비구면렌즈, 구경조리개, 유리 필터, 구면수차, 비점수차, 왜곡
Patent KR-20070082176-A (KR)
Title: Dynamic service allocation gateway system and the method for plug&play in the ubiquitous environment
Inventor: SHIN JUN SEOB
IPC: H04L12/12
Filed: 2006-02-15
Abstract: A gateway system for automatically allocating a service for plug and play in a ubiquitous environment and a method thereof are provided to enable a device to automatically request an address and a communication port of a server for the service after making an access to a network. A gateway system for automatically allocating a service for plug and play in a ubiquitous environment comprises a communication port receiver(21), a TCP/IP unit(22), a receipt processor(23), a list storage unit(24) and a health checking unit(25). The communication port receiver(21) receives a communication port request of a device application. The TCP/IP unit(22) transmits the communication port request of the application to a host based service gateway by using a TCP/IP packet or a default gateway of the same link. The receipt processor(23) receives a service request of the device and transmits the received service request to a server for the service. The list storage unit(24) stores a list of the servers for the service. The health checking unit(25) checks whether communication with the server is possible.
Patent KR-20060032965-A (KR)
Inventor: LEE JONG SOO
IPC: G06F15/02
Filed: 2006-02-20
Abstract: 본 발명은 화물 단가환산기에 관한 것으로, 화물의 가격산정 과정에 있어 여러번의 작업으로 인한 불편함과 자와 계산기 등을 함께 소지하여야 하는 불편한 문제점을 해소할 수 있도록 한 것이다. 
     즉, 본 발명은 측정화물의 길이를 측량할 수 있게 구비되는 자테입(10)과, 상기 자테입(10)을 탄성권취하는 자권취구(20)와, 상기 자권취구(20)가 수납되며 일측에 자인출구를 형성한 몸체(70)와, 상기 몸체(70)에 구비되어 인출되는 자테입(10)의 인출길이를 측정하는 인출길이감지수단과, 상기 인출길이감지수단을 통하여 연속 입력된 3개의 수치와 단가정보데이터부(50)에 저장된 화물에 따른 단가정보를 연산하여 가격 값을 출력하는 단가연산부(40)와, 상기 단가연산부(40)를 통하여 출력된 값을 디스플레이하는 디스플레이부(81)와, 단가연산부(40)의 단가연산을 위한 선택값을 선택 입력할 수 있게 한 스위치로 이루어진 조작스위치부(50) 및 기기의 동작을 위한 전원부(82)로 구성한 것이다. 
     따라서, 본 발명은 치수의 측정과 함께 그 가격이 산출되므로서 화물수령이 신속하고 정확하게 이루어지는 것이다. 
       
     화물
Patent KR-20070090355-A (KR)
Title: Method of manufacturing a flash memory device
Inventor: PARK EUN SHIL
IPC: H01L21/8247
Filed: 2007-03-02
Abstract: A method for fabricating a flash memory device is provided to prevent the residue of a high dielectric layer from being left on the lateral surface of a floating gate by forming a gate by a mixed process of a dry etch process and a wet etch process. A dielectric layer composed of a first oxide layer, a high dielectric layer and a second oxide layer and a conductive layer for a control gate are sequentially formed on a semiconductor substrate(100) including a floating gate pattern. A polysilicon layer and a tungsten silicide layer can be stacked to form the conductive layer for the control gate. A dry etch process is performed to etch the conductive layer for the control gate and a predetermined region of the second oxide layer. A wet etch process is performed to etch a predetermined region of the high dielectric layer. A dry etch process is performed to etch a predetermined region of the first oxide layer.
Patent KR-20070090694-A (KR)
Title: Microspeaker with water proof device
Inventor: JEONG SEUNG KIU
IPC: H04B1/38
Filed: 2006-03-03
Abstract: A water proof device for a microspeaker is provided to prevent a malfunction of an audio apparatus by preventing moistures from permeating into the audio apparatus through a through-hole. A water proof film(12) is inserted into a protector(11), which is attached to an upper portion of a speaker. A rubber ring(13) is inserted between the protector and a speaker support member. The rubber ring is protruded by more than the speaker support member(21) and the protector. When the speaker is mounted on an audio apparatus, a support guide(24) is arranged at a side portion of the speaker support member such that the rubber ring is pressed. The speaker support member includes an enclosure(23) which contains air. Air is guided into the audio apparatus via a through-hole(22). A coin connecting line and a lead line(32) are coated with a water proof adhesive agent(31).
Patent KR-20060029168-A (KR)
Inventor: KIM KYUNG SOO
IPC: G06Q40/02
Filed: 2006-03-09
Abstract: 본 발명은 금융대출 중개 서비스 방법에 관한 것이다. 본 발명의 일실시 예에 따른 대출중개서버는, 금융기관으로부터 소정의 금융대출을 받고자 하는 고객을 대신하여, 고객의 신용상태 또는 담보제공 상태에 따른 각 금융기관의 대출조건을 확인하여 고객에게 제공함으로써 보다 편리하게 금융기관 대출을 받을 수 있도록 한다. 이를 위해, 금융기관의 대출신청을 위한 소정의 첨부서류 등을 고객 등으로부터 제공받아 그 정보를 금융기관에 제공하고, 금융기관으로부터 해당 대출신청에 따른 대출조건을 미리 제공받아 고객에게 전달함으로써 고객으로 하여금 최상의 대출조건에 따른 금융대출을 받을 수 있게 한다.  
       
     신용대출, 담보대출, 중개서비스, 전자문서
Patent KR-20070094289-A (KR)
Title: Universal serial bus cable capable of minimization bad influence to antenna of mobile terminal
Inventor: SON KI PYEO
IPC: H01B11/06
Filed: 2006-03-17
Abstract: A USB(Universal Serial Bus) cable of a mobile terminal for minimizing the bad influence on an antenna is provided to maximize the efficiency of the antenna by reducing the influence of an electromagnetic wave on the antenna of the mobile terminal. A USB cable of a mobile terminal for minimizing the bad influence on an antenna includes a terminal connector(110), an external device connector(120), and a cable(130). The terminal connector(110) is connected to a USB port of the mobile terminal. The external device connector(120) is connected to a USB port of an external device. The cable(130) connects the terminal connector(110) to the external device connector(120). The terminal connector(110) includes a socket unit(112) having a plurality of connection pins on a front part of a case. A plurality of connection terminals are withdrawn from the connection pins of the socket unit(112). A coaxial wire of the cable(130) is connected to the connection terminals. A circuit board is removed from the case.
Patent KR-20060103404-A (KR)
Title: Method of arc detection
Inventor: SVEN AXENBECK
IPC: H01L21/203
Filed: 2006-03-24
Abstract: The output signal of an AC generator (5) is fed as power. The output signal is measured with respect to an internal signal. A reference duration is compared with a threshold value to detect an arc. The duration of the half waves of the output signal or the internal signal is determined.
Patent KR-20070101572-A (KR)
Title: Event output method in navigation
Inventor: AHN YOUNG SHIN
IPC: G08G1/0962
Filed: 2006-04-11
Abstract: A navigation method for outputting an event at a specific position is provided to service an entertainment function by simultaneously guiding an event screen and an audio signal at a specific position or a specific date based on a user setting. An event is set, and a background selection, an event message input, a user voice record, and a specific position are selected(S1,S2). Then, when the event is set, whether navigation is operated is determined. When the event is not set, a normal route search and a route guidance are executed(S3-S5). When the navigation is operated, an event setting screen is displayed on a display unit and a voice signal is output(S8). When the navigation is not operated, the normal route search and a route guidance are executed. Next, whether an event position is reached is determined. When the event position is reached, the event setting screen is displayed and the voice signal is output(S6-S8).
Patent KR-20060108555-A (KR)
Inventor: ADANIYA TAKU
IPC: H02K1/22
Filed: 2006-04-14
Abstract: 복수의 영구 자석의 자극 중심부에 각각 대응하는 회전자의 외주의 복수의 부분에는, 복수의 원주부가 형성된다.     각 원주부는, 회전자의 회전 중심 축선과 동심의 가상 원주면의 일부를 이룬다.     복수의 원주부는, 둘레 방향에서 서로 이간되어 있다.     복수의 볼록 형상부의 각각은, 각 인접하는 한 쌍의 원주부를 잇는다.     각 볼록 형상부는, 상기 가상 원주면보다 직경 방향 내측에 위치함과 함께 직경 방향 외측을 향하여 볼록이다.     각 볼록 형상부는, 직경 방향 외측을 향하여 볼록한 복수의 모서리부를 갖고 있다.     따라서, 출력 토크의 평균치의 저하를 억제함과 함께, 릴럭턴스 토크를 출력 토크의 평균치의 향상에 이용하지 않는 구성의 회전 전기가 제공된다.
Patent KR-20070103182-A (KR)
Title: Scan driving circuit and organic light emitting display using the same
Inventor: SHIN DONG YONG
IPC: G09G3/30
Filed: 2006-04-18
Abstract: A scan driver and an OLED(Organic Light Emitting Display) device using the same are provided to execute a rapid operation speed by switching an output voltage of the scan driver from a positive source voltage to a negative source voltage. A scan driver, which is driven by receiving two clocks of three clocks, receives an input signal through an input terminal(in), and outputs an output signal through an output terminal(out). Each of input terminals of plural stages is connected to an output terminal of a previous stage. Each of the stages includes a switch, a switching unit and a storing unit. The switch switches to connect with the input terminal corresponding to a clock in a first clock terminal(ck1). The switching unit controls to deliver a first voltage to the output terminal according to the clock and the input signal. The storing unit delivers a clock signal received through a second clock terminal(ck2) to the output terminal.
Patent KR-20060103248-A (KR)
Inventor: YOON SUK CHANG
IPC: G06F1/16
Filed: 2006-04-27
Abstract: 본 발명은 노트북 컴퓨터의 본체모니터에 연결모니터를 추가로 연결하여 각종 영업활동이나 방문 고객과의 상담 시 상대방에게 보다 편안하고 신속하게 각종의 정보를 시각적으로 제공하기 위하여 본체모니터와 연결모니터의 연결부는 본체모니터에 고정 연결 홈을 장착하고, 연결모니터에 0도에서 360도까지 회전 운동하는 회전축과 0도에서 180도까지 왕복 운동하는 왕복 축을 장착하여 본체모니터와 연결모니터를 연결한 양방향 모니터 노트북 컴퓨터에 관한 것이다. 
     본체모니터와 연결모니터 화면을 동시에 사용하고자 할 때에는 연결모니터의 덮게 부분을 왕복 축 방향으로 올린 후 연결모니터를 회전축 방향으로 회전시킨 다음, 다시 연결모니터를 왕복 축 방향으로 움직여 두개의 모니터 화면 측면이 역V자 모양이 되도록 하면, 본체모니터와 연결모니터 화면이 온(on) 상태로, 상대방과의 상담 시 보다 편안하고 신속하게 각종의 정보를 시각적으로 제공함으로써 불편한 움직임이나 불필요한 시간 낭비를 절약할 수 있는 효과를 얻을 수 있다. 
       
     연결부, 고정 연결 홈, 회전축, 왕복 축
Patent KR-20070105651-A (KR)
Title: Electric power steering apparatus having planetary gear train as speed reduction mechanism
Inventor: CHUNG SUNG JUNE
IPC: B62D5/04
Filed: 2006-04-27
Abstract: An electric power steering system using a planetary gear device as a decelerator is provided to install a planetary gear interlocked to an outer side of a sun gear and a motor on the same driving shaft as an input shaft transmitting auxiliary steering power to a carrier and to an output shaft, assisting the steering of a driver while reducing the installation space of the motor, allowing greater freedom in designing the steering system. An electric power steering system using a planetary gear as a decelerator comprises an input shaft(301), a motor(130) having a rotor(313) enclosing an outer diameter of the input shaft, a carrier(303) attached to the input shaft, a sun gear(305), which encloses the outer diameter of the input shaft, connected to the rotor, a planetary gear(307) interlocked with the sun gear and supported by the carrier, a ring gear(309) whereto the planetary gear interlocks inwardly, and an output shaft(311) connected to the carrier. The input shaft and the carrier are integrated. The carrier and the output shaft are integrated. The sun gear and the rotor are integrated. The ring gear, attached to a gear housing, does not rotate. The gear ratio between the input shaft and the output shaft is 1 to 1.
Patent KR-20060060639-A (KR)
Inventor: KIM HYUN SUCK
IPC: E02B5/00
Filed: 2006-05-01
Abstract: 본 발명은 바닥부의 양측에 상광하협의 형태가 되도록 일정각도 기울기를 갖는 측벽부가 일체로 형성된 상태에서 그 전/후단을 연속 연결하여 수로를 형성하는 수로블록에 관한 것으로서, 보다 구체적으로는 상기 바닥부에 식물이 생장할 수 있도록 전/후 등간격으로 요입 형성하되, 통수공을 통해 지반과 원활한 소통이 이루어지면서 식물이 생장할 수 있도록 소정크기로 형성된 다수개의 바닥식생공간; 상기 일정 각도의 기울기를 갖는 양 측벽부 내면에 대하여 적어도 상/하 2단 이상으로 형성된 계단; 상기 상/하 계단을 연결하여 구조적 안정성을 보강함과 아울러 물의 흐름을 감속시키기 위해 전/후 등간격으로 형성되는 적어도 하나 이상의 보강리브; 및 상기 계단의 상단면에 요입 형성하되, 통수공을 통해 지반과 원활한 소통이 이루어지면서 식물이 생장할 수 있도록 소정크기로 형성된 다수개의 측벽식생공간; 이 구성되어 이루어짐에 따라, 양 측벽부에 형성된 계단을 통해 수로 내부로 생태동물의 출입이 용이하고, 바닥부와 측벽부에 형성된 식생공간을 통해 보다 많은 식물의 생장이 이루어지는 친환경 수로블록을 제공하게 된다.
Patent KR-20060122700-A (KR)
Title: Hard-coated member
Inventor: ISHIKAWA TAKESHI
IPC: C22C21/00
Filed: 2006-05-11
Abstract: A hard film coated member having excellent lubricity and resistance to delamination from a substrate as well as excellent seizure resistance and/or wear resistance is provided. As a member having a hard coating film comprising a lowermost layer, an intermediate laminated part and an uppermost layer formed on a substrate, a hard film coated member is characterized in that: the intermediate laminated part is formed by alternately laminating an A layer and a B layer having different compositions; the A layer and the B layer are respectively formed of at least one selected from the group consisting of nitrides, borides, carbides and oxides of metal constituents having compositions represented by a formula of AlWCrXTiYSiZ, wherein W, X, Y and Z respectively represent atomic % of Al, Cr, Ti and Si, and W+X+Y+Z=100, and combinations thereof; the A layer satisfies a relational expression of 70<=W+X<100; the B layer satisfies a relational expression of 30<=Y<100; and the uppermost layer is formed of at least one selected from the group consisting of nitrides, carbides, sulfides and borides of Ti or/and Si and combinations thereof.
Patent KR-20060128637-A (KR)
Title: Refrigerator
Inventor: UCHIDA YOSHIHIDE
IPC: F25D21/14
Filed: 2006-05-12
Abstract: A refrigerator is provided to compact a machine room and improve the radiation efficiency by effectively arranging each component in the machine room. A refrigerator comprises a machine room(15) formed at the lower unit of the rear side of a body; a coolant compressor(12) installed in adjacent to one side of the crosswise direction in the machine room; a condenser(13) arranged along the rear side wall on the opposite side to the width direction of the machine room; and a radiation fan(18) installed to have a shaft in the front and rear direction of the body against the condenser. The radiation fan divides and transfers the air sucked from the lower part to the compressor and the condenser. The condenser consisting of a plurality of plane plate is vertically installed in a duct formed by a rear plate(2a) of outer box at the upper part of the machine room and a cover unit covering the rear side of the machine room. Some of cool air wind from the radiation fan heat-exchanges with the condenser to be upwardly discharged and transfers another cool air wind to the compressor.
Patent KR-20070109744-A (KR)
Title: Angle control long shovel
Inventor: KWEON DO HYUN
IPC: A01B1/02
Filed: 2006-05-12
Abstract: An angle controllable shovel is provided to reduce uncomfortable posture of a user and not to give unnecessary pain in back or in waist after an extended-hour work using the shovel. An angle controllable shovel includes a handle(20) and a blade(30) in which the blade can be bent at a certain angle by a physical force that is provided from a user. As the blade is manually inclinable, the user does not need to bend his/her waist to work. In this way, the distance between arms of the user and the blade is not far from each other, which in turn reduces a load upon the arms. With the angle controllable shovel, possible back pain or pain in waist from prolonged work can be prevented.