baber/WOPTO huggingface dataset:
Patent KR-20070019899-A (KR)
Title: Terrestrial-digital multimedia broadcasting and digital audio broadcasting low-if receiver
Inventor: KIM BON KEE
IPC: H04N5/44
Filed: 2005-08-13
Abstract: A terrestrial DMB(Digital Multimedia Broadcasting)/DAB(Digital Audio Broadcasting) low-IF(Intermediate Frequency) receiver is provided to reduce the manufacturing cost of the receiver by receiving two frequencies and removing a SAW(Surface Acoustic Wave) filter. A terrestrial DMB/DAB low-IF receiver includes a low-noise amplifier(202) for amplifying a received RF(Radio Frequency) signal while restraining a noise signal included in the received RF signal, a down-conversion mixer(203) for converting the frequency of the RF signal to a low IF and removing a video frequency band, a low pass filter(204) for low-pass-filtering a low frequency band of the signal output from the down-conversion mixer, and an amplifier(205) for amplifying the output signal of the low pass filter. The low-IF receiver further includes a local oscillator(208) for generating a frequency for the down conversion and providing the frequency to the down-conversion mixer, and a phase locked loop(209) for shifting the frequency of the local oscillator to a predetermined frequency and locking the predetermined frequency. The low-noise amplifier, the down-conversion mixer, the low pass filter, the amplifier, the local oscillator and the phase locked loop are integrated on a single chip(206).
Patent KR-20070023231-A (KR)
IPC: G09B25/00
Filed: 2005-08-23
Abstract: 본 발명은 21C 과학과 레포츠 그리고 현대인의 스트레스 해소와 욕구 충족을 위해 지상에서 스카이다이빙 체험을 할 수 있게 하는 것으로 체험자가 들어갈 수 있는 수직 풍동의 하단부를 호리병 또는 벤츄리관 형태의 구조로 하여 수직 풍동 내에서 낙하하였을 때 낙하가속도가 하단부의 벤츄리관 영역에서 발생되는 빠른 공기 흐름에 의한 항력으로 흡수되고 다시 부상하여 공중 유영하는 체험을 할 수 있게 하는 것으로 운용의 효율성과 안전의 확보를 위한 구체적인 방법으로 내부 공기 압력을 대기압보다 높게 하고 체험구간의 상 하단부는 넓고 중간부는 벤츄리관  형태를 갖게 하며 소음차단을 위해 폐쇄형 유로를 구현한다. 
       
     스카이다이빙, 풍동, 수직풍동, 낙하체험, 공중부양, 벤츄리관,
Patent KR-20070028010-A (KR)
Title: Reinforcing method and equipment of underwater structure
Inventor: LEE SEUNG JUN
IPC: E02D37/00
Filed: 2005-08-30
Abstract: A method of reinforcing and constructing an underwater structure and a construction structure are provided to preclude the whole underwater structure from being closed and save the resources by reinforcing the eroded surface and preventing the concrete from being leaked to the underwater. A structure for reinforcing and constructing an underwater structure(20) is composed of a mold(10) installed to cover an eroded surfaced(21) of the underwater structure to form a sealed reinforcing space(30) between the mold and the eroded surface of the underwater structure. The mold contains an air inlet port(12) connected to a hose at the reinforcing space to flow the air from the outside, a drain port(13) draining the water of the reinforcing space by the flowed air pressure, and a concrete reinforcement injecting port(11) mounted on the upper part by closing the drain port after draining, and injecting/hardening the concrete reinforcement in the reinforcing space.
Patent KR-20070025516-A (KR)
Title: Apparatus and method for modifying and playing of sound source in the mobile communication terminal
Inventor: KIM SUN HONG
IPC: H04B1/40
Filed: 2005-09-02
Abstract: An apparatus for modifying and regenerating a sound source in a mobile communication terminal and a method thereof are provided to modify a sound pressure level of an existing sound source into a desired sound pressure and to regenerate the sound source with the modified sound pressure due to enhancing satisfaction for the sound outputted via a speaker. An apparatus for modifying and regenerating a sound source in a mobile communication terminal comprises an application processor(22) and a sound source sequencer(23). The application processor(22) collects regeneration channels and poly information of a sound source in case that a sound source modification request event occurs with regard to an arbitrary sound file stored at a memory, and afterwards, forwards the modified sound source information and sound source data to a melody chip. The sound source sequencer(23) copies a sound source of a channel to other channel where sound source data is not assigned for performing a sound source modification by using the regeneration channel and the poly information of the sound source forwarded from the application processor(22), and forwards the modified sound source information and sound source data to the application processor(22).
Patent KR-20070025855-A (KR)
Title: The method of printing progress indication and apparatus for the same
Inventor: KIM HAE CHUL
IPC: G06F3/12
Filed: 2005-09-05
Abstract: A printing device using a background image and a method thereof are provided to set/print the background image without passing a host computer by receiving the background image stored in an external memory or transmitting the background image stored in a memory to the external memory through an interface, merging printing data and the background image, and printing the merged data. The interface part(200) is connected to the external memory. The memory(210) stores the background image. A controller(220) makes the background image of the external memory received through the interface part or makes the background image of the memory transmitted to the external memory through the interface. A printing part(230) performs printing by merging the printing data and the background image. A display part(240) displays the image merging the printing data and the background image. The display part displays the background images stored in the memory or the external memory in a thumbnail type.
Patent KR-20060051270-A (KR)
Inventor: YAMAMOTO SATOSHI
IPC: H01L21/302
Filed: 2005-09-13
Abstract: 본 발명은 얼음의 미립자를 포함하는 처리액을 기판의 표면으로 공급하여 기판의 처리를 행하는 경우에, 처리 불균일을 일으키지 않고 균일한 처리가 가능하며, 기판 상에 형성된 피막에 손상을 주지도 않는 장치를 제공한다.   
     기판(W)을 경사 자세로 지지하여 수평 방향으로 반송하는 롤러 컨베이어와, 기판의 주면으로 얼음의 미립자를 포함하는 처리액을 공급하는 노즐(12)과, 기판의 주면에 접촉 또는 근접하여 왕복 이동하여 기판의 주면 상에서 얼음의 미립자를 포함하는 처리액을 혼합하는 평면 브러시(14)를 구비하여 장치를 구성하였다.
Patent KR-20070033122-A (KR)
Title: Process for recovering valuable metals from residual waste including catalist
IPC: C22B11/00
Filed: 2005-09-20
Abstract: A method for recovering valuable metals from waste catalysts is provided to seek the simplification of process and the stability of operation and improve the recovery ratio of the valuable metals. A method for recovering valuable metals from waste catalysts comprises: finely milling petroleum desulfurized waste catalysts which are generated during petroleum refining and contain valuable metals such as a vanadium(V), a molybdenum(Mo), etc. and flammable materials such as petroleum and petroleum residues contained in the waste catalysts into powder; sieving the milled powder by a sieve of 200 mesh; mixing the milled powder passing through the sieve with a predetermined quantity of sodium carbonate(Na2CO3); and roasting the mixture in a rotary furnace or an electric furnace, wherein the waste catalysts are pre-treated with incombustible solvents, particularly an incombustible cleaning agent such as 1,1,1-trichloroethane or carbon tetrachloride(CCl4), and an ester-based emulsifier to remove the flammable materials such as petroleum and petroleum residues contained in the waste catalysts.
Patent KR-20070034765-A (KR)
Title: 다층 인쇄회로기판의 관통홀 형성 방법
IPC: H05K3/46
Filed: 2005-09-26
Abstract: 본 발명은 다층 인쇄회로기판의 관통홀 형성 방법에 관한 것으로, 보다 상세하게는 표면에 단차 또는 굴곡이 발생하는 다층 인쇄회로기판의 적층 공정시 사용되는 성형 부재 내의 금속층을 적층 공정이 끝난 후 제거하지 않고, 관통홀 형성을 위한 드릴링 공정에서 엔트리 보드로 이용함으로써, 드릴링 공정시 엔트리 보드의 들뜸 현상이 발생하지 않아 관통홀 주변에 버의 발생을 감소시키는 다층 인쇄회로기판의 관통홀 형성 방법에 관한 것이다.  
       
     다층 인쇄회로기판, 관통홀, 버, 엔트리 보드, 성형 부재, 드릴링
Patent KR-20070038379-A (KR)
Inventor: JEUN SANG GI
IPC: B65D81/28
Filed: 2005-10-05
Abstract: 본 발명은 항균성 수지로 제조된 항균성 용기에 관한 것으로서, 표면에 각종 세균의 서식을 방지하여 위생적이면서, 동시에 안정적인 색상을 구현할 수 있는 항균성 용기를 제공하는 데 그 목적이 있다. 
     상기와 같은 목적을 달성하기 위한 본 발명의 항균성 용기는 항균성 수지로 된 것으로서, 상기 항균성 수지는 폴리프로필렌(PP) 100중량%에 대해 0.01∼30 중량%의 은을 함유하는 인산염계 무기항균제 0.05∼30 중량%와, 첨가제로서 특정 성분 또는 특정 구조를 갖는 에스테르계 화합물 또는 일정 범위의 중량평균 분자량을 가지는 탄화수소계 화합물 중 선택된 적어도 하나 이상의 화합물 단독 또는 각각 0.01∼30중량%를 혼합하여 이루어진 것을 기술적 특징으로 한다. 
       
     항균성, 수지, 용기, 폴리프로필렌, 인산염계, 대전방지제
Patent KR-20060052580-A (KR)
Inventor: VENCESLAS PATRICK GEORGES
IPC: H04W36/08
Filed: 2005-11-10
Abstract: 본 발명의 일 측면에 있어서, 이동 장치와, 제 1 및 제 2 기지국과 라디오 네트워크 제어기를 포함하는 통신 시스템을 제어하는 방법이 제공된다.  그 방법은 제 1 기지국을 이동 장치에 고속 데이터를 전달하는 주요 기지국으로써 설정하는 것을 포함한다.  신호 세기 또는 품질과 같은 제 1 기지국과 제 2 기지국에 관련된 파라메타가 모니터링되고, 제 1 기지국과 관련된 모니터링된 파라메타를 초과하는 제 2 기지국과 관련된 모니터링된 파라메타에 응답하여 제 2 기지국이 주요 기지국임을 나타내는 레벨 1 유형 신호가 제 1 및 제 2 기지국에 전송된다.
Patent KR-20060052624-A (KR)
Inventor: ABI KARAM MICHEL
IPC: B21B38/00
Filed: 2005-11-11
Abstract: 본 발명은 압연 로울러(4, 5)를 조절하기 위한 장치로서 유압 조절 잭(6)과 함께 장착된 롤 스탠드(1)의 진동을 감지하기 위한 방법에 관한 것이다. 유압 조절 잭은 고정부에 관하여 가동부의 위치를 측정하기 위한 센서(64)를 구비하며, 이러한 센서는 디지틀 신호(POS)를 공급한다. 본 발명의 방법에 있어서, 진동은 위치 신호(POS)의 직접 관측에 의해 감지하며, 스패티오-템포럴(Spatio-temporal) 윈도우(F)와 비교하여 감지되고, 그 크기는 감지될 주파수의 함수로서 결정된다. 본 발명에 따라서, 다른 진동 현상을 감지하기 적절한 다른 관측 윈도우(F)를 형성함으로써 가능하다. 탠덤 밀에 있어서, 각각의 롤 스탠드(1)의 유압 조절 잭(6)의 위치 신호(POS)는 본 발명의 방법에 따라 관측되며, 이는 각 스탠드에서 감지될 진동을 개시하게 할 수 있으며 감지될 현상의 개시를 대기시킬 수 있다.
Patent KR-20070052908-A (KR)
Inventor: CHOI JUNG UK
IPC: G02F1/1333
Filed: 2005-11-18
Abstract: 개시된 액정표시장치는, COF가 마련된 액정 패널과, 액정 패널에 빛을 공급하는 조명 부재로써, 몰드 프레임이 마련된 백라이트 유닛을 포함하고, 몰드 프레임의 일측면에는 COF가 인출되도록 다수의 홈이 형성되며, 홈을 형성하는 몰드 프레임의 내벽면 사이에는 리브가 마련됨으로써, 이 리브에 의해 인출된 COF를 지지하여 몰드 프레임 외측으로의 처짐을 방지하여 액정 패널로의 데이터 전송을 원활하게 하고, 또한 외력이 가해진 경우 홈 주변 모서리 부분에 집중되는 응력을 분산시킴으로써, 액정 패널의 크랙 발생을 방지할 수 있는 효과를 제공한다.
Patent KR-20060092992-A (KR)
Inventor: KNUTZEN JOSEF V
IPC: B29C33/44
Filed: 2005-11-22
Abstract: 본 발명은 안과용 렌즈 금형 부분을 다중 속도로 분리하기 위한 방법 및 장치에 관한 것이다.  특히, 본 발명은 소프트 콘택트 렌즈, 고정도 안내 렌즈 등을 이들이 제조되는 개별 금형으로부터 박리하기 위한 방법 및 장치에 관한 것이다.  본 발명은 안과용 렌즈의 제조 효율을 최대화시키고 금형 부분 분리로부터 야기되는 안과용 렌즈의 손상을 감소시키기 위한 프라이 핑거의 다중 속도 제어를 교시하고 있다.   
       
     안과용 렌즈 금형 부분, 다중 속도 제어, 프라이 핑거, 금형 분리.
Patent KR-20070056688-A (KR)
Title: Electron emission device and manufacturing method thereof
Inventor: CHOI KUN HONG
IPC: H01J1/30
Filed: 2005-11-30
Abstract: An electron emission device and a manufacturing method of the same are provided to suppress a screen effect of an electron emission unit by forming carbon based materials at a predetermined interval. A plurality of cathode electrodes(6) are formed on a substrate(2). A catalytic layer is formed on the cathode electrodes. A crack layer is formed on the catalytic layer in order to form fine cracks on the catalytic layer. An electron emission unit(12) is formed on the catalytic layer exposed through the fine cracks. A plurality of gate electrodes(10) are formed between the cathode electrodes and the insulating layer. The gate electrodes include apertures for opening the electron emission unit.
Patent KR-20070059542-A (KR)
Title: System for disassembling a scrapped car
Inventor: JIN CHEOL MIN
IPC: B62D67/00
Filed: 2005-12-07
Abstract: A system and method for disassembling a scrapped car are provided to reduce a disassembly time of parts of the scrapped car and reduce disassembly cost per car. A method for disassembling a scrapped car includes the steps of entering the scraped car into a disassembly workshop(S1), collecting liquefied materials form the scraped car(S1), removing explosive parts and recycle parts(S2), removing interior and exterior parts(S3), removing engine parts and exhaust system parts(S4), and compressing a vehicle body and crushing the vehicle body(S5). In step S1, when engine oil or transmission oil are frozen in wintertime, a pre-heater(16) preheats the oil. In step S2, the explosive parts such as an airbag explosive device is removed to prevent damage to an operator. In step S3, plastic materials such as trims, covers, seats, and so on, are separated from the vehicle body.
Patent KR-20070061974-A (KR)
Title: Apparatus for detecting the defect of a luminescence device and method in the same
Inventor: KIM KI HONG
IPC: H05B33/10
Filed: 2005-12-12
Abstract: An apparatus and method for detecting defect of a light emitting device is provided to reduce a time required to detect the defect by simultaneously performing the defect detection for each scan line or data line. A panel having plural pixels(310) is positioned at a region where data lines(D1 to Dm) intersect scan lines(S1 to Sn). After a power is applied to the scan lines, a power is applied to each data lines, so that an inverse voltage is applied to the pixels for each data line. Current flowing in each pixel is measured according to the applied inverse voltage, thereby detecting whether each pixel is defective. The step of applying the inverse voltage includes applying positive power to the scan lines, applying negative power to the data line to be measured, and connecting the data lines with a ground, except for the data line to be measured.
Patent KR-20070062829-A (KR)
Title: Apparatus of depositing bpsg
Inventor: KIM HEE KYUN
IPC: H01L21/31
Filed: 2005-12-13
Abstract: BPSG(BoroPhosphoSilicate Glass) deposition equipment is provided to prevent a BPSG layer from being excessively deposited by stopping the supply of a reaction gas into a reaction chamber in case of the generation of an abnormal BPSG deposition using a bus controller. BPSG deposition equipment includes a reaction chamber and a bus controller for controlling a CVD(Chemical Vapor Deposition) operation of the reaction chamber by comparing a reaction gas supply time with a reference time. The bus controller includes a main control part(200) for controlling the CVD operation of the reaction chamber according to a control algorithm, a timer(210) for setting a reference time according to the control of the main control part, an error detecting part(220) for detecting a malfunction of the reaction chamber by comparing the reaction gas supply time and the reference time, and a valve control part(230) for receiving an error generation signal from the error detecting part and breaking the supply of the reaction gas into the reaction chamber according to the error generation signal.
Patent KR-20060069337-A (KR)
Inventor: MIZUGAKI KENICHI
IPC: H04W88/08
Filed: 2005-12-16
Abstract: 기지국의 구조를 간단히 하는 것을 목적으로 한다.  본 발명은, 노드와, 기준국과, 복수의 기지국과, 상기 노드의 위치를 산출하는 서버와, 상기 기지국과 상기 서버를 접속하는 네트워크를 갖는 노드 위치 측정 시스템에 있어서, 상기 기준국은, 상기 측위 신호를 수신하는 측위 신호 수신부와, 상기 측위 신호 수신부가 상기 측위 신호를 수신한 후에 기준 신호를 송신하는 기준 신호 작성부를 구비하고 상기 기지국은, 상기 측위 신호 및 상기 기준 신호를 수신하는 신호 수신부와, 상기 신호 수신부가 수신한 상기 측위 신호 및 상기 기준 신호로부터 특정한 패턴을 검출하고, 검출한 시각을 측정하는 수신 시각 측정부와, 상기 수신 시각 측정부가 측정한 시각으로부터 생성된 시각 정보를 상기 서버에 송신하는 통신부를 구비하고, 상기 서버는, 상기 기지국으로부터 송신된 시각 정보에 기초하여 상기 노드의 위치를 산출하는 위치 계산부를 구비한다. 
       
     쌍곡선 교회법, 프리앰블, 노드, UWB 방식
Patent KR-20070064965-A (KR)
Title: Method for forming micro-pattern of semiconductor device
Inventor: NAM WOONG DAE
IPC: H01L21/28
Filed: 2005-12-19
Abstract: A method for forming a micro pattern in a semiconductor device is provided to prevent a polymer from being left on a trench in a process of etching the trench by thinly depositing a polymer shield film on a bottom surface and a sidewall of a via hole. A second interlayer dielectric(3), an etching stop layer(4) and a third interlayer dielectric(5) are sequentially deposited on a first interlayer dielectric(1) with a copper wiring(2'). The third interlayer dielectric, the etching stop layer and the second interlayer dielectric are etched to form a via hole exposing a portion of the copper wiring. A polymer shield film(12) is deposited along an inner sidewall of the via hole. An anti-reflective film is applied on the polymer shield film. The third interlayer dielectric is etched to form a trench.
Patent KR-20070069950-A (KR)
Title: Cmos image sensor and method for manufacturing the same
Inventor: HAN CHANG HUN
IPC: H01L27/146
Filed: 2005-12-28
Abstract: A CMOS image sensor and its manufacturing method are provided to protect a pixel array portion by forming a photosensitive layer on the pixel array portion and then forming color filter layers and microlenses thereon. Plural photodiodes and various transistors are formed on a semiconductor substrate(200), and interlayer dielectrics(209,210) are formed on the entire surface of the substrate. A photoresist layer(211) is formed on the interlayer dielectric. Color filter layers(212) are formed on the photoresist layer at a position corresponding to each photodiode. A planarized layer(213) is formed on the entire surface of the substrate, and plural microlenses(214) are formed on the planarized layer corresponding to each photodiode.
Patent KR-20070071520-A (KR)
Title: Communication device of looking/listening rebroadcasting data and operating method of the device
Inventor: LEE SANG YOON
IPC: H04B1/40
Filed: 2005-12-30
Abstract: A communication terminal for watching old broadcast data and its operation method are provided to effectively use system resources of a communication terminal by receiving broadcast data through a data channel and outputting it. A database(211) records broadcast data of one or more old broadcasts and certain identification information corresponding to the broadcast data. A receiving unit(212) receives a broadcast request query including the identification information from a communication terminal(200). A reading unit(213) reads the broadcast data corresponding to the identification information with reference to the database(211). A channel establishing unit(214) establishes a data channel with the communication terminal(200). A transmitting unit(215) transmits the read broadcast data through the data channel.
Patent KR-20070072186-A (KR)
Title: Back light and liquid crystal display device having thereof
Inventor: KIM YOUNG MI
IPC: G02F1/13357
Filed: 2005-12-30
Abstract: A backlight and an LCD(Liquid Crystal Display) having the same are provided to fix a U-shape lamp to a lamp fixing member formed at a side support, thereby preventing the non-uniformity of brightness. A lamp fixing member(134) is installed at the front of a side support(130). A U-shaped lamp(140) is inserted into and fixed in the lamp fixing member. A reflection plate is installed at the lower portion of the U-shaped lamp. Penetration holes are formed at both sides of the side support so that a curved portion of the U-shaped lamp is inserted. A pad(136) is formed at the lower portion of the curved portion of the U-shaped lamp. The pad is made of silicon. The lamp fixing member is a semi cylinder, a triangle or square shape. The upper corner of the U-shaped lamp is chamfered. An optical sheet is equipped to the upper portion of the U-shaped lamp. The U-shaped lamp is a CCFL(Cold Cathode Fluorescent Lamp).
Patent KR-20050035261-A (KR)
Inventor: GRAHAM GUILE
IPC: B60B19/12
Filed: 2003-08-07
Abstract: A multiple directional wheel (10) including a frame (11) having a central hub (12) rotatable about a main axis and a plurality of roller supports (16) radially spaced from the central hub, a plurality of rollers evenly spaced around the circumference of the wheel (10) and rotatably mounted on the roller supports (16), the rollers rotatable about a corresponding plurality of roller axes aligned in the plane of the wheel and transverse to the main axis, the frame (11) is integrally formed in a first moulding process and the rollers are formed in place on the wheel (10) about the roller supports (16) in a separate process. In another embodiment there is disclosed a multiple directional wheel including a pair of opposed separately integrally formed first and second frames.
Patent KR-20050056966-A (KR)
Title: Method and apparatus for producing twisted bead wire
Inventor: NIWA TOMOMICHI
IPC: B21F7/00
Filed: 2003-08-12
Abstract: In a method and apparatus for producing a twisted bead wire, a steel wire (3) is wound on a circular core (2), rotatable in a circumferential direction, in a diameter smaller than the diameter of a circular core (2). The steel wire (3) is moved relatively in a direction approaching the circular core (2) that rotates in a circumferential direction. At one side of the steel wire (3) with respect to a plane transverse to the circular core (2), the movement is made along substantially a radial direction of the circular core (2), and the steel wire (3) is made to pass through the circular core (2). At the other end, the steel wire is taken up while it is repeatedly moved in a quasi-linear reciprocating manner where the wire is moved in a departing direction, and thus the wire is spirally twisted. The steel wire can be twisted while being made to follow the circular core (2) without causing torsional stress in the wire, so that a desired twisted bead wire can be appropriately and easily produced.
Patent KR-20050054918-A (KR)
Title: Complementary analog bipolar transistors with trench-constrained isolation diffusion
Inventor: CHAN WAI TIEN
IPC: H01L21/8228
Filed: 2003-08-13
Abstract: A semiconductor substrate includes a pair of trenches filled with a dielectric material. Dopant introduced into the mesa between the trenches is limited from diffusing laterally when the substrate is subjected to thermal processing. Therefore, semiconductor devices can be spaced more closely together on the substrate, and the packing density of the devices can be increased. Also trench constrained doped region diffuse faster and deeper than unconstrained diffusions, thereby reducing the time and temperature needed to complete a desired depth diffusion. The technique may be used for semiconductor devices such as bipolar transistors as well as isolation regions that electrically isolate the devices from each other. In one group of embodiments, a buried layer is formed at an interface between an epitaxial layer and a substrate, at a location generally below the dopant in the mesa. When the substrate is subjected to thermal processing, the buried layer diffuses upward, the dopant in the mesa diffuses downward until the two dopants merge to form an isolation region or a sinker extending downward from the surface of the epitaxial layer to the buried layer. In another embodiment, dopant is implanted between dielectrically filled trenches at a high energy up to several MeV, then diffused, combining the benefits of deep implantation and trenched constrained diffusion to achive deep diffusions with a minimal thermal budget.
Patent KR-20050037583-A (KR)
Title: Beta-lactamase inhibitor prodrug
Inventor: MCLEOD DALE GORDON
IPC: C07D499/00
Filed: 2003-08-11
Abstract: Prodrugs of 6-ß-hydroxymethylpenicillanic acid sulfone having the structure wherein R is H or methyl, and solvates thereof, are disclosed. Also disclosed are pharmaceutical compositions comprising a prodrug of the present invention, or a solvate thereof, an optional beta-lactam antibiotic and at least one pharmaceutically acceptable carrier. Further disclosed is a method for increasing the therapeutic effectiveness of a beta-lactam antibiotic in a mammal by administering an effective amount of a betalactam antibiotic and an effectiveness-increasing amount of a prodrug of the present invention, or a solvate thereof. Additionally disclosed is a method for treating a bacterial infection in a mammal by administering a therapeutically effective amount of a pharmaceutical composition of the present invention to a mammal in need thereof.