baber/WOPTO huggingface dataset:
Patent KR-20130079722-A (KR)
Title: Gloves to protect frostbite by palms temperature thermal conductivity
Inventor: TAK SEUNG HO
IPC: A41D13/005
Filed: 2012-01-03
Abstract: PURPOSE: A device is provided to prevent frostbite and a cold hand by conducting a temperature of a high temperature part among body parts to a cold part if wearing 'a glove or a glove inner skin unit in which a heat conduction unit is built' and 'a shoe or an insole of shoe in which the heat conduction unit is built'. CONSTITUTION: A device in which a glove and a glove inner skin are built and a method thereof are provided to prevent a cold hand by conducting a temperature of a warm palm to a cold part including fingers and a back of hand. The device for preventing frostbite and a cold hand by heat conduction insulates an outer air contact part of a glove or a glove inner skin by using an infrared ray reflection film, installs a capillary tube between a hand and an insulation film, increase a temperature of circulation nonfreezing solution in a heat collector which increases a temperature of nonfreezing liquid in the inner side of the capillary tube which is contacted with a palm, and is equipped with a finger bending/spreading circulation pump in order to prevent a cold hand by pumping liquid to a cold part like a finger joint part except a fingerprint part.
Patent KR-20120136275-A (KR)
Title: Processor bridging in heterogeneous computer system
Inventor: TENG CHANG CHANG
IPC: G06F13/14
Filed: 2012-01-03
Abstract: PURPOSE: A processor bridging in a heterogeneous computer system including a hypervisor processor is provided to minimize computing power consumption by maintaining a battery state. CONSTITUTION: A hypervisor operating logic(6410) manages a system state under an executing processor. A processor language translator logic(6430) translates a processor language of a hypervisor processor(610) and the executing processor. A high speed bus switch(6407) is connected from a first port to the executing processor, is connected from a second port to the hypervisor processor through the processor language translation logic, and is connected from a third port to a logic support processor. [Reference numerals] (610) Low power hypervisor processor(ARM, MIPS, Reduced x86); (620) High performance x86 processor(Intel, AMD, Cyrix); (6400) Logic bridge; (6407) High speed bus switch; (6410) Hypervisor processor(control) operating logic; (6430) Language translator speaking x86 language for enabling ARM to control x86 hardware; (662) x86 chipset; (6624) North bridge; (AA) Fixing bus; (BB) Port A; (CC) Port C; (DD) Port B; (EE) x86 language; (FF) ARM language
Patent KR-20120084667-A (KR)
Title: Double reflector and its manufacturing method
Inventor: KIM HAENG KON
IPC: F21V1/12
Filed: 2012-01-13
Abstract: PURPOSE: A dual reflector and a manufacturing method thereof are provided to minimize a light loss by installing the dual reflector on the lower side of an arctube that is a light source of a lamp. CONSTITUTION: A lamp insertion groove is integrated with a pillar reflector of an equilateral trapezoid in a basic reflector(100). Four protrusion units are formed with the same area as the basic reflector. A lamp insertion groove(200) is formed in the center of the basic reflector to insert a lamp. A main body(10) is attached to a lighting device by a lighting device connection unit(600). A combination leg(500) connects the lighting device connection unit to the main body.
Patent KR-20130084822-A (KR)
Title: Food garbage clear bag and holder thereof
Inventor: KANG TEAK HYUN
IPC: B65F1/14
Filed: 2012-01-18
Abstract: PURPOSE: A food waste bag and a holding unit thereof are provided to be transported from a sink hygienically and conveniently and to be thrown away out of a house by minimizing the contact between food waste and hands. CONSTITUTION: A food waste bag comprises an outer envelope (100) and an inner envelope (200). The outer envelope has the opened upper end the opened lower end; and includes a pair of handles (120) on both sides of the upper end, and a tightening strip (110) on the circumference of the lower end. The inner envelop has the opened upper end the closed lower end; and includes multiple small discharge holes (210) on the entire surface. The inner envelop is inserted inside the outer envelope and connected to the outer envelope by being wrapped around by the outer envelope.
Patent KR-20130085092-A (KR)
Inventor: CHOI YUN YOUNG
IPC: A46B17/02
Filed: 2012-01-19
Abstract: 이 발명품은 칫솔에 관한 것이다., 칫솔모가 결합된 머리부분과, 머리부분에서 쭉 이어진 칫솔 목부분과,  칫솔 목부분에서부터 손잡이 부분으로 이루어진 칫솔에 있어서, 칫솔 목부분과 손잡이 부분 사이에는 앞뒤좌우 있는 돌기부분가 마련되어 있으며,  돌기부분에 연결되는  손잡이 부분의 끝단에는 납작한 부분으로 형성하도록 하여  칫솔의 돌기부분과 손잡이 부분의 단면은 타원형으로 형성되어 있고,  칫솔부의 중앙에는 받침돌기가 형성되어 있고, 또 칫솔모 뚜껑이 있어서 칫솔모가 어떠한 방향에 눕혀있든지 바닥에 닿지 않게 하여 세면대의 오염물질과 물 등에 의한 오염을 예방하는 효과가 있다.
Patent KR-20120101298-A (KR)
Title: Ink composition, ink set and image forming method
Inventor: SAITO RYO
IPC: C09D11/00
Filed: 2012-01-27
Abstract: PURPOSE: An ink composition is provided to retrain color separation at curing process, and to restrain bandage of ink droplets to discharge direction after discharge pausing and after repeated maintenance and repairing. CONSTITUTION: An ink composition comprises: at least one kind selected from a group consisting of cyan pigment and magenta pigment; at least one kind selected from polyvinylpyrrolidone, polyvinylalcohol, and polyethylene glycol, of which weight ratio to a whole amount of the compostion is 0.01-1.00 weight%; at least one kind selected from a group consisting of non-soluble or poorly water-soluble resin particle, and non-soluble or poorly-soluble wax particles; and water.
Patent KR-20130087964-A (KR)
Title: Five-grain rice tteokbokki of the method of manufacturing the same
Inventor: HWANG YEN SUK
IPC: A23L7/10
Filed: 2012-01-30
Abstract: PURPOSE: A cooking method of tteokbokki (stir-fried rice cake in sauce) using cooked five grains is provided to wrap the outside of the cooked five grains with fish paste for improving the eating texture. CONSTITUTION: 100 parts by weight of water, 50-60 parts by weight of rice, 30-40 parts by weight of glutinous rice, 10-20 parts by weight of sorghum, 10-20 parts by weight of red beans, and 10-20 parts by weight of soybeans are mixed, and boiled at 90-100°C for 20-30 minutes to obtain cooked five grains. 100 parts by weight of fish flesh, 3-6 parts by weight of starch, and 3-6 parts by weight of ice are mixed to obtain fish paste. The outside of the five cooked grains are wrapped with the fish paste. The fish paste wrapped grains are fried at 120-130°C for 10-30 seconds. 100 parts by weight of onion juice, 30-35 parts by weight of red pepper powder, 35-40 parts by weight of starch syrup, 35-40 parts by weight of sugar, and 10-15 parts by weight of garlic are mixed and boiled to obtain tteokbokki sauce. 100 parts by weight of fried fish paste wrapped grains, 25-35 parts by weight of tteokbokki sauce, and 1-5 parts by weight of starch are mixed and boiled.
Patent KR-20130088679-A (KR)
Title: 디지털 앰프의 잡음성형 방법 및 잡음성형기
Inventor: PARK KYOUNG SOO
IPC: H03F3/217
Filed: 2012-01-31
Abstract: 본 발명은 디지털 앰프의 PWM(Pulse Width Modulation) 변조기의 일부인 잡음성형기에서 오버플로(overflow)에 의해 발생하는 왜곡과 잡음을 보상하는 기술에 관한 것이다. 
본 발명은 재양자화 오차를 잡음 성형하는 과정에서 클리핑 오차가 발생하는 경우 이를 피드백하여 보상함으로써 클리핑이 발생하더라도 디지털 앰프의 전고조파 왜곡과 잡음을 줄여 음질을 개선하고 최대 출력을 향상시킬 수 있도록 하는 클리핑에 의한 오차를 보정하는 방법 및 이를 구현한 잡음성형기를 제공한다.
Patent KR-20130092311-A (KR)
Title: Substrate treating apparatus
Inventor: KIM SUNG HO
IPC: H01L51/56
Filed: 2012-02-10
Abstract: PURPOSE: A substrate processing apparatus is provided to reduce particles generated from a deposition chamber by using a mask collection unit which is formed outside the deposition chamber. CONSTITUTION: A first deposition module is arranged in a first direction. A second deposition module is arranged on the side of the first deposition module in the first direction. The first and second deposition modules include a mask attaching chamber, a deposition chamber, and a mask removing chamber respectively. A mask collection unit (7) is formed between the first deposition module and the second deposition module. The mask collection unit collects a mask from the mask removing chamber in a mask attaching chamber direction.
Patent KR-20130092705-A (KR)
Inventor: LEE KYO HYUN
IPC: A47G19/22
Filed: 2012-02-13
Abstract: 본 발명의 일 실시예는 가열용기세트에 관한 것이다. 
본 발명의 일 실시예는 일측에 파지할 수 있도록 한 손잡이가 형성된 외부용기와, 상기 외부용기의 하부 내측면과 소정간격으로 이격되도록 공간이 형성되도록 상기 외부용기의 내부에 구비되어 피가열물이 내장되어 있는 내부용기를 구비하되, 상기 이격되는 공간에 가열수단이 구비되고, 상기 가열수단에 전기적으로 연결된 전원인터페이스부가 구비된 컵용기; 및 상기 컵용기를 받치도록 그 하부에 구비되고, 그 일측에는 외부 전원 케이블이 결속되는 전원연결부가 구비되며, 상기 전원연결부에 전기적으로 연결되되 상기 전원인터페이스부에 접촉되는 전원공급단자가 구비되고, 상기 전원공급단자에 연결되도록 내장되어 상기 가열수단으로의 전원공급을 제어하는 가열조절수단이 구비되는 용기받침대를 포함하는 가열용기세트고, 상기 가열조절수단은 상기 전원공급단자에 연결되어, 상기 가열수단에 전원을 공급하는 전원부; 상기 전원부로부터의 전원 공급의 온, 오프를 가능케 하는 사용자 선택 모드를 설정할 수 있도록 하는 모드 설정부; 상기 모드 설정부에 의해 설정된 사용자의 선택 모드가 결정되면, 사용자의 설정 시간에 따라 타이밍 동작을 수행하는 타이머; 상기 타이머에 의한 타이밍 시작 또는 종료 여부를 감지하여 상기 설정시간이 지나면 상기 전원의 공급을 차단하도록 제어할 수 있는 컨트롤러; 상기 전원부와 상기 컨트롤러 사이에 연결되어 상기 컨트롤러의 제어신호에 따라 스위칭 동작하는 릴레이; 및 상기 전원부와 상기 타이머 사이에 구비되어 기준시간이 지나면 상기 사이의 연결을 자동으로 해제하는 스위칭 제어부;를 포함하되, 상기 스위칭 제어부는, 상기 전원부와 상기 타이머의 사이를 전기적으로 연결하거나 연결을 해제하는 스위치; 상기 스위치의 양단에 걸리는 전압에 의하여 충전되는 충전부; 상기 충전부에 충전된 전원으로 동작하는 솔레노이드; 및 상기 스위치가 턴 온되고 나서 미리 설정된 기준시간이 지나면, 상기 솔레노이드를 동작시켜 상기 스위치를 턴 오프 시키는 제어부를 포함하는 가열용기세트를 개시한다.
Patent KR-20130092809-A (KR)
Title: Cof package having improved heat dissipation
Inventor: HONG TAE KI
IPC: H01L23/34
Filed: 2012-02-13
Abstract: PURPOSE: A chip-on-film package with an improved heat radiation is provided to prevent an overheat by absorbing heat transmitted through a via hole. CONSTITUTION: An insulation layer (210) includes a via hole (212) for a heat radiation. A circuit (230) is located on one side of the insulation layer. An IC is mounted on a chip mounting area (204) and is electrically connected to the circuit. A dummy pattern part (240) is formed on the same layer as the circuit and includes an extension part (242) between the leads of the circuit. The via hole corresponds to the extension part.
Patent KR-20130094461-A (KR)
Inventor: PANG SUK CHONG
IPC: G06F3/023
Filed: 2012-02-16
Abstract: 본 발명은 한글확장의 연서방식 사이음표기를 이용한 외래어 표현방법 및 이를 이용한 입력장치에 관한 것으로, 더욱 상세하게는 한글을 이용하여 외래어를 발음되는 대로 쓸 수 있도록 하여 외래어를 표기했을 때 누구나 그 외래어를 정확하게 인식할 수 있을 뿐만 아니라, 이를 전자장치의 입력장치를 사용하여 입력할 수 있도록 함으로써 외래어를 그대로 쓰지 않더라도 한글로서 외래어를 표기 및 입력할 수 있도록 하는 한글확장의 연서방식 사이음표기를 이용한 외래어 표현방법 및 이를 이용한 입력장치에 관한 것이다. 
본 발명의 한글확장의 연서방식 사이음표기를 이용한 외래어 표현방법 및 이를 이용한 입력장치에 의하면 연음소 'ㅇ'을 자음의 상단에 연서함으로써 글자를 더욱 안정적으로 보일 수 있도록 하면서도 외래어를 표기할 수 있을 뿐만 아니라, 우리나라 말에서 발음되지 않는 외래어의 센 치순음(예 F), 여린 치순음(예 V), 여린 치설음(예 TH(ð)), 센 치설음(예 TH(θ))을 발음되는 그대로 표기할 수 있어서, 외래어를 가르치거나 배울 때 매우 유용하게 사용할 있으며, 외래어를 한글로 정확하게 표기 및 전자장치에 입력할 수 있어서 한글을 세계화할 수 있는 등의 효과가 발생한다.
Patent KR-20130094522-A (KR)
Title: Mobile terminal and method for security diagnostics
Inventor: LEE JUNG HEE
IPC: H04W88/02
Filed: 2012-02-16
Abstract: PURPOSE: A mobile terminal for security diagnosis and a security diagnosis method are provided to find out abnormal symptom about malignant codes early which is not known without overhead. CONSTITUTION: A blacklist check unit (150) determines whether application corresponding to a blacklist registered in a server exists as to at least one application installed in a corresponding mobile terminal. A security diagnosis part (160) compares basic information of the mobile terminal collected by a system check unit with preestablished abnormal symptom judgment reference information, for the application which is confirmed not to be the malignant code by the blacklist check unit. The security diagnosis part judges the generation of the abnormal symptom of the corresponding mobile terminal on the ground of the comparison result and a control command of a user inputted through an interface part. [Reference numerals] (110) Control unit; (120) Interface unit; (130) Communication unit; (140) System check unit; (150) Black list check unit; (160) Security diagnosis unit
Patent KR-20130095976-A (KR)
Title: 악취정화장치
Inventor: LEE KWANG CHOON
IPC: B01D53/02
Filed: 2012-02-21
Abstract: 악취를 효과적으로 정화 또는 저감시키는 것이 가능하도록, 1차 정화장치와 2차 정화장치의 2단계로 이루어지고, 1차 정화장치는 물 접촉방식으로 악취를 함유한 공기를 물과 접촉시켜 공기 중의 악취 성분들을 물에 용해시켜 악취를 저감시키고, 2차 정화장치는 1차 정화장치를 거치면서 악취 성분이 일정 정도 저감된 공기를 유입하여 습식 활성탄 여과재를 통과한 후 냉각기와 접촉하여 물로 변환되도록 하여 악취 성분이 포함된 물을 회수하도록 구성하고, 2차 정화장치를 통하여 회수된 물은 냉각기에 부착된 냉각기 펌프를 통해 접촉수 공급탱크로 이송되고, 냉각기를 통과한 공기는 최종적으로 망사 여과재를 통과하여 외부로 배출하도록 구성하는 악취정화장치를 제공한다.
Patent KR-20130096821-A (KR)
Title: Solar cell module
Inventor: JANG DAE HEE
IPC: H01L31/042
Filed: 2012-02-23
Abstract: PURPOSE: A solar cell module is provided to improve power efficiency by increasing the amount of light emitted from a solar cell. CONSTITUTION: A transparent member (40) is located on a first protection layer (20a). An insulating member is located in the lower part of the solar cell. The insulating member includes opening parts. A conductive pattern is located in the lower part of the insulating member. A first current collecting part and a second current collecting part are connected by the conductive pattern.
Patent KR-20130097981-A (KR)
Title: Process for the preparation of azines and azine polymers using solid hydrazine
Inventor: HUR NAM HWI
IPC: C07C241/00
Filed: 2012-02-27
Abstract: PURPOSE: A manufacturing method of azine and azine polymers is provided to conduct a reaction by using a solid hydrazine as a reactant, instead of a toxic liquid hydrazine. CONSTITUTION: A manufacturing method of azine and azine polymers includes a step of synthesizing an azine compound or an azine polymer by the reaction of a solid hydrazine, which is represented by chemical formula 1 and is in a solid state at room temperature and atmospheric pressure, and carbonyl compounds represented by chemical formula 2 and 3. The reaction is conducted by the contact or the substitution between solids under a nonsolvent condition.
Patent KR-20120103485-A (KR)
Title: Semiconductor device and method for manufacturing the same
Inventor: NODA KOSEI
IPC: H01L29/786
Filed: 2012-03-08
Abstract: PURPOSE: A semiconductor device and a manufacturing method thereof are provided to improve reliability by applying a stable electrical property to a transistor using an oxide semiconductor for an active layer. CONSTITUTION: An oxide semiconductor film(104) includes a pair of first areas, a pair of second areas, and a third area. A pair of electrodes(102) is adjacent to the oxide semiconductor film and overlapped with the first areas. A gate insulation film is formed on the oxide semiconductor film. A gate electrode(108) is overlapped with the third area by using the gate insulation film. The second areas are provided between the first areas and the third area.
Patent KR-20120028964-A (KR)
Title: Inkjet head assembly
Inventor: KANG PIL JOONG
IPC: B41J2/045
Filed: 2012-03-09
Abstract: PURPOSE: An ink jet head assembly is provided to improve a processing yield rate because the number of ink jet heads produced from one wafer is increase by decreasing a whole width of the ink jet head. CONSTITUTION: An ink jet head assembly(100) comprises a ink jet head plate(110), a piezoelectric actuator(120), a package unit(130), an electrical connection unit(154). A flow path for ink is formed in the ink jet head plate. The piezoelectric actuator supplies a driving force for ejecting ink from the pressure chamber to the nozzle. An ink transferring unit(152) of the package unit transfers the ink to an inlet(111) of the ink jet head plate. The electrical connection unit is electrically connected to the piezoelectric actuator. The ink transferring unit is horizontally extended toward one direction of the package unit.
Patent KR-20130103225-A (KR)
Title: Wireless terminal and information processing method
Inventor: PARK TAE HYUNG
IPC: G06F15/16
Filed: 2012-03-09
Abstract: PURPOSE: A wireless terminal and a data processing method thereof are provided to output a sharing area which mutually shares at least one of texts, contents, and applications which are equipped in second to Nth wireless terminals of users who correspond to selected user identifying information. CONSTITUTION: A wireless communication unit (34) receives one or more identification data which are included in a specific time interval zone from a server on a communication network. A sharing processor (35) outputs the user identification data which are received in the wireless communication unit on a screen. If any one of one or more user identification data which are outputted on the screen is selected, the sharing processor outputs a sharing area which mutually shares at least one of texts, contents, and applications which are equipped in second to Nth wireless terminals of users who correspond to the selected user identification data. [Reference numerals] (110) User wireless terminal; (30) Control unit; (31) Motion sensor; (32) Motion pattern checking unit; (33) Location information checking unit; (34) Wireless communication unit; (35) Sharing processor
Patent KR-20130107099-A (KR)
Title: Method and system for operating non-slip giro
Inventor: PARK JI HYEON
IPC: G06Q40/02
Filed: 2012-03-21
Abstract: PURPOSE: A non-slip giro management method and a system thereof are provided to easily perform the reception of various fees and expenses for congratulations and condolences of individuals. CONSTITUTION: A giro issue record including claimant information and giro information about a pre-issued giro is stored. A receiver terminal (120) determines a non-slip giro number having a designated digit not overlapped with a giro number of the giro issue record and determines non-slip claimant information in response to a non-slip giro issue request. A non-slip giro including The determined non-slip giro number and non-slip claimant information is iuused. The non-slip giro is managed through a non-slip giro ledger (180) differentiated from a slip giro ledger (175). Whether a payment-requested giro number corresponds to the non-slip giro number managed through the non-slip giro ledger is confirmed in response to a giro payment request of a remitter. [Reference numerals] (100) Non-slip giro operating system; (105) Issuance detail storage unit; (110) Forbidden word storage unit; (115) Giro issuance detail D/B; (120) Addressee terminal; (125) Interface providing unit; (130) Issuance application receiving unit; (135) Giro number determining unit; (140) Claimant information determining unit; (145) Non-slip giro issuance unit; (150) Giro ledger managing unit; (155) Giro payment checking unit; (160) Giro payment control unit; (170) Giro task system; (175) Slip giro ledger; (180) Non-slip giro ledger; (190) Remitter terminal; (AA,RR) Wire terminal; (BB,SS) Wireless terminal; (CC) Wireless AP; (DD) Base station; (EE) Communication network; (FF) Giro number; (GG) Claimant information; (HH) Issuance information; (II) Forbidden word information; (JJ) Non-slip addressee information; (KK) Slip giro information; (LL) Claimant information; (MM,PP) Operation information; (NN) Non-slip giro number; (OO) Non-slip claimant information; (QQ) Giro receiving channel; (TT) Unmanned receiving machine; (UU) POS terminal
Patent KR-20130112643-A (KR)
Title: Wall mounted drum type washing machine
Inventor: HWANG UI KUN
IPC: D06F39/12
Filed: 2012-04-04
Abstract: PURPOSE: A wall mounted drum washing machine prevents from the air outlet being blocked. CONSTITUTION: A wall mounted drum washing machine comprises a rear panel (10), a tub (20), an air outlet (123), and a block preventing unit. The rear panel hangs on a wall. The tub receives washing water, and is supported to the rear panel. The air outlet is formed at the rear panel in order to discharge air charged in the tub. The block preventing unit prevents the air outlet from becoming blocked.
Patent KR-20130117563-A (KR)
Title: Semiconductor device and method of fabricating the same
Inventor: PARK DONG KYUN
IPC: H01L27/108
Filed: 2012-04-18
Abstract: PURPOSE: A semiconductor device and a manufacturing method thereof are provided to prevent the falling of a bottom electrode, by including at least one layer of a supporting pattern which is adjacent to the side of the bottom electrode. CONSTITUTION: A bottom electrode (60) is arranged on a substrate (1), and includes a seam (S) in the inside. The bottom electrode includes a first bottom electrode pattern (39a) providing a side of the seam, and a second bottom electrode pattern (42a) providing an upper side of the seam. The height of the center of the upper side of the bottom electrode is higher than or equal to the height of the edge part. A dielectric layer (48) covers the bottom electrode conformally. An upper electrode film (50) covers the dielectric layer.
Patent KR-20130120864-A (KR)
Title: Perlite coating solution, method of manufacturing perlite sheet coated thereby, and perlite sheet manufactured by the same method
Inventor: KIM JU HEA
IPC: C09D133/04
Filed: 2012-04-26
Abstract: The present invention relates to a perlite coating solution, a manufacturing method of a perlite sheet coated with the perlite coating solution, and a perlite sheet manufactured by the same method, and, in particular, to a perlite coating solution manufactured by dispersing perlite having closed cells in a binder solution in which an water-based binder is dispersed, a perlite sheet coated with the perlite coating solution, and a manufacturing method thereof. According to the present invention, a perlite coating solution with an excellent stability capable of being coated on thin cloth or fibers is able to be manufactured by dispersing perlite on a binder solution in which a water-based binder is dispersed in an aqueous medium. Also, the heat insulation is secured by using perlite having closed cells, which eliminates cell blocking phenomena generated in the conventional inorganic insulators with open cells. The present invention is able to provide a manufacturing method of a perlite sheet with less bulkiness, and an economic heat insulating material by using perlite of the cost less than one tenth compared to aerogel.
Patent KR-20130124838-A (KR)
Title: Piezo circuit, piezo driving circuit for the piezo circuit, and piezo driving method
Inventor: KOO GWAN BON
IPC: H02N2/06
Filed: 2012-05-07
Abstract: The present invention relates to a piezoelectric circuit, a piezoelectric driving circuit driving the piezoelectric circuit, and a driving method of the piezoelectric circuit. The piezoelectric circuit includes a sub-piezoelectric circuit, and an external inductor connected to the sub-piezoelectric circuit in parallel, and when a polarity of a piezoelectric voltage, that is, a both-end voltage of the piezoelectric circuit is inverted, the external inductor discharges the sub-piezoelectric circuit. The piezoelectric driving circuit comprises a full-bridge circuit including a first switch and a third switch that are connected to a first node of the piezoelectric circuit, and a second switch and a fourth switch that are connected to a second node of the piezoelectric circuit.