baber/WOPTO huggingface dataset:
Patent TW-374156-B (TW)
Title: Recording medium and disc cartridge
Inventor: TOMITA YASUSHI
IPC: G11B23/033
Filed: 1998-07-17
Granted: 1999-11-11
Abstract: A signal recording medium capable of being strongly secured to a rotation part such as a disc table even on high-speed rotation. A floppy disc includes a hub at its center portion and a disc substrate having in its disc-shaped main portion a circular opening operating as a mounting portion for the hub and also having a signal recording surface on the disc-shaped main portion. The hub includes an abutment surface abutted against the disc table rotated in unison with the floppy disc and a facing suction surface spaced apart from a suction magnet mounted on a rim portion of the disc table when the abutment surfaces is abutted against a hub setting surface of the disc table.
Patent TW-401333-B (TW)
Title: Throwaway insert for ball end mill
Inventor: OKUI SHOJI
IPC: B23C5/20
Filed: 1998-08-05
Granted: 2000-08-11
Abstract: A throwaway insert for a ball end mill having an ideal cutting edge shape corresponding to the cutting speeds and loads at different portions of the cutting edges, high in strength and capable of discharging chips smoothly. As viewed in a direction perpendicular to the line connecting noses, each cutting edge forms a convex curve with its nose portion at the lowest level. As viewed in a direction perpendicular to the abovesaid direction, rake faces form symmetrical, downwardly sloping convex accurate surface or straight surfaces having a positive rake angle of 5-25 DEG. The wedge angle at the cutting edges is set at 85-65 DEG. Thus, the rake angle will be negative at the noses and positive at other portions. Further, the rake angle increases toward the side where the cutting speed is higher. The thickness of the insert increases toward the side where the load is greater.  Since this insert is a modification of a negative insert, i.e. an insert of the type having a side perpendicular to its bottom, it has enough strength. Chips can be discharged smoothly too.
Patent TW-393660-B (TW)
Title: Color cathode ray tube having an improved electron gun
Inventor: UCHIDA TAKESHI
IPC: H01J29/50
Filed: 1998-08-11
Granted: 2000-06-11
Abstract: A color cathode ray tube includes a three-beam in-line type electron gun. The main lens section includes a focus electrode and an anode facing the focus electrode, each of the focus electrode and the anode has an electrode having a single opening common for three electron beams in an end thereof facing each other and a plate electrode disposed therein and having beam apertures. The focus electrode and the anode satisfy a following inequality: (A+566)/106>H-2XS where A is V1XV2XT, V1 is a vertical diameter of the single opening, V2 is a vertical diameter of a center one of the beam apertures and T is an axial distance between the single opening and the plate electrode, H is a horizontal diameter of the single opening, S is P X L/Q, P is a horizontal center-to-center spacing between adjacent phosphor elements at a center of the three-color phosphor screen, Q is an axial spacing between the three-color phosphor screen and the shadow mask at the center of the three-color phosphor screen, and L is an axial distance between the shadow mask and the single opening in the focus electrode.
Patent TW-388861-B (TW)
Title: Method and device for measuring and registering statistical time variation for an optical data carrier
Inventor: WILHELMSON ULF
IPC: G11B27/36
Filed: 1998-08-27
Granted: 2000-05-01
Abstract: A device (40) for measuring and registering statistical time variations in a measurement signal obtained when reading or playing an optical data carrier(34) has a controller (41) capable of receiving the measurement signal; storage means (49) with a plurality of addressable memory cells; means (47) for generating a ramp signal when receiving a start command from the controller (41); and means (48) for reading and digitalizing an instantaneous value of the ramp signal when receiving a read command from the controller (41). The controller detects a start event (A) in the measurement signal and gives a start command to the means (47) for generating a ramp signal. An end event (B) is detected in the measurement signal or in a reference or clock signal, wherein a read command is given to the means (48) for reading and digitalizing. The controller receives a digital value of the measurement signal at the time of the end event. A memory address is generated as a function of the received value of the measurement signal, by means of which the numerical content is read at said address from the storage means (49). An arithmetic operation is performed with the read memory content as an operand, and then the result of the operation is written at said memory address.
Patent TW-407229-B (TW)
Title: Power supply apparatus and method of controlling power supply circuit
Inventor: SHIMAMORI HIROSHI
IPC: H02M3/157
Filed: 1998-09-28
Granted: 2000-10-01
Abstract: A electric power conversion unit generates a DC output according to a pulse signal from a PWM unit. An A/D conversion unit converts the output voltage from the electric power conversion unit into digital data. A digital filter amplifies the difference between the digital data output from the A/D conversion unit and a reference value. A pulse width computation unit computes the on-time of a pulse signal provided to the electric power conversion unit based on the output from the digital filter. The on-time is written to an on-time register. The PWM unit generates a pulse signal according to the cycle set in a cycle register and the on-time written to the on-time register, and provides the signal to the electric power conversion unit.
Patent TW-464976-B (TW)
Title: Improved techniques for etching with a photoresist mask
Inventor: HASELDEN BARBARA
IPC: G03F7/40
Filed: 1998-12-15
Granted: 2001-11-21
Abstract: A method for improving profile control of during an etch of a nitride layer disposed above a silicon substrate is disclosed. The nitride layer is disposed below a photoresist mask. The method includes positioning the substrate, including the nitride layer and the photoresist mask, in a plasma processing chamber. There is also included flowing a chlorine-containing etchant source gas into the plasma processing chamber. Further, there is included igniting a plasma out of the chlorine-containing etchant source gas to form a chlorine-based plasma within the plasma processing chamber. Additionally, there is included treating, using a chlorine-based plasma, the photoresist mask in the plasma processing chamber. The treatment of the photoresist is configured to etch at least a portion of the photoresist mask and to deposit passivation polymer on vertical sidewalls of the photoresist mask without etching through the nitride layer.
Patent TW-407395-B (TW)
Title: Numerical control device
Inventor: SAGASAKI MASAKAZU
IPC: G05B19/414
Filed: 1998-12-30
Granted: 2000-10-01
Abstract: A numerical control device has a synchronization controlling/managing unit (11) for managing the master-slave relationship of shafts whose synchronization is controlled. In the case of position control (control of synchronization of shafts), a synchronization position calculating section (74) of a shaft control unit for controlling a reference shaft adds the amount of movement of the reference shaft calculated by a shaft control command value converting section (72) to the reference position of the reference shaft to calculate the command position of the reference shaft. A synchronization position calculating section (74) of a synchronization shaft calculates the amount of movement per unit time of a synchronization shaft from the amount of movement received by a reference position input/output section (73), the gear ratio of the synchronization shaft to the reference shaft, the command speed ratio, and the command unit time ratio, and adds the amount of movement per unit time to the reference position of the synchronization shaft to calculate the command position of the synchronization shaft. A shaft control unit for controlling the reference shaft and shaft control units for controlling synchronization shafts output calculated command positions to control the respective motors. Thus synchronization control of shaft for one reference shaft is performed, and synchronization control of another synchronization shaft with reference to the former synchronization shaft.
Patent TW-511060-B (TW)
Title: Digital driver circuit for electroptical device and electroptical device having the same
Inventor: MATSUEDA YOJIRO
IPC: G09G3/36
Filed: 1999-03-24
Granted: 2002-11-21
Abstract: The invention is provided to enhance the driving capability of a digital driver circuit which drives a TFT active matrix drive type liquid crystal device, etc., while reducing the power consumption. A digital driver circuit which produces an analog drive signal in response to the input of a digital image signal is characterized in comprising: a series selection means which, according to the value of the lower bit of the digital image signal, selects one of plural series of reference multi-ramp waves whose voltages vary in steps with the lapse of time; and a time selection means which, according to the value of the upper bit of the signal, selects on a time base the voltages of at least one selected series of reference multi-ramp waves which vary stepwise.
Patent TW-420697-B (TW)
Title: Novel prescription of copolyesters
Inventor: YOU WU-BIN
IPC: C08G63/00
Filed: 1999-04-23
Granted: 2001-02-01
Abstract: The traditional synthesis of high shrinkage copolyesters made of isophthalic acid, terephthalic acid and ethylene glycol. The traditional high shrinkage copolyesters were unstable, when they were spun, drawn, textured, woven and dyed. However, the novel composition of copolyesters are used 9,9'-bis[4(2-hydroxyethoxy) phenyl] fluorene, and/or isophthalic acid, terephthalic acid and ethylene glycol as raw materials. It can be improved the unstable shrinkage that be caused by process or storage.
Patent TW-430808-B (TW)
Title: Structure of SRAM and method for making the same
Inventor: JANG DING-JANG
IPC: G11C5/00
Filed: 1999-05-18
Granted: 2001-04-21
Abstract: A method for making a SRAM comprises defining an active region of an access transistor and a drive transistor on a substrate; sequentially forming a gate oxide layer and a polysilicon layer on the substrate; performing a germanium atom implantation on the polysilicon layer of the active region of the drive transistor thereby forming a polysilicon germanium layer; defining the polysilicon layer and the polysilicon germanium layer to form a polysilicon gate and a polysilicon germanium gate on the active region of the drive transistor; forming a lightly doped region on the substrate of the side of the gate; forming a spacer on the side of the gate; and forming a heavily doped region on the substrate of the side of the spacer.
Patent TW-404024-B (TW)
Title: The planarization process of SRAM
Inventor: YANG CHING-NAN
IPC: H01L21/8244
Filed: 1999-05-25
Granted: 2000-09-01
Abstract: A planarization process of SRAM. Because the SRAM transistor of this invention forms dual layer spacer on the sidewall of the gate, the formed dielectric layer is not completely planar when forming a conformal dielectric layer on the surface of the substrate, but there still has part of the planarization effect due to the height difference, which could reduce the difficulty of the subsequent etch process.
Patent TW-459004-B (TW)
Title: System and process for producing polycondensation polymer
Inventor: KOMIYA KYOSUKE
IPC: C08G63/78
Filed: 1999-06-16
Granted: 2001-10-11
Abstract: This invention provides a system for producing a polycondensation polymer comprising (A) an inert gas absorption device for causing a molten polycondensation prepolymer to absorb an inert gas to obtain an inert gas adsoprtion molten prepolymer (Α), (B) a polymerization device for polymerizing inert gas-absorbed molten prepolymer (Α) under reduced pressure, and (C) a pipe for transferring the inert gas-absorbed molten prepolymer (Α) from absorption device (A) to polymerization device (B), in which absorption device (A) and polymerization device (B) are arranged by this order and connected to each other through pipe (C) to become a system. Also disclosed is a method for producing a polycondensation polymer by using the above system that is characterized as: in an inert gas absorption area, an inert gas is used to treat a molten polycondensation prepolymer to obtain the inert gas absorbed molten prepolymer (Α) which is moved to a polymerization area under reduced pressure to polymerize the inert gas-absorbed molten prepolymer (Α). By the use of the system or method of the present invention, it has become possible to produce a colorless, high quality polycondensation polymer at high polymerization rate even without using a large amount of an inert gas.
Patent TW-423244-B (TW)
Title: Method and apparatus for speech coder output transformation
Inventor: THYSSEN JES
IPC: G10L21/02
Filed: 1999-07-31
Granted: 2001-02-21
Abstract: In a cellular telephone system where a digital cellular telephone is connected to a regular telephone through the public switched telephone network (PSTN), a speech encoder/decoder is used with an A/mu-Law encoder/decoder causing annoying audible noise at very low levels because of the quantization characteristics of the A/mu-Law encoder/decoder. This noise is eliminated by adding a digital constant to the output of the speech coder, shifting the low level signal away from zero. The resulting DC level added to the speech signal is inaudible to the PSTN telephone user and does not degrade speech quality.
Patent TW-453872-B (TW)
Title: Method for producing insole with physiotherapeutic effects
Inventor: DING JAU-LUNG
IPC: A61F7/08
Filed: 1999-08-19
Granted: 2001-09-11
Abstract: A method for producing an insole with physiotherapeutic effects comprises adhering an inner layer material to an outer layer material to form an insole substrate; covering the insole substrate with a screen mold plate; coating the screen mold plate with a far IR-releasing paint; after a certain period of time, removing the screen mold plate from the surface of the insole substrate thereby forming a plurality of protruded particles on the surface of the insole substrate. Thus, the protruded particles attached on the insole can eliminate the stiffness and sore on the sole of a foot, while preventing the aging of the skin on the sole of a foot, promoting metabolism, moisturizing the skin on the sole of a foot, and massaging the skin.
Patent TW-I234539-B (TW)
Title: Yarn feeder for textile machines
Inventor: LAMPPRECHT ALFRED
IPC: B65H51/22
Filed: 1999-08-30
Granted: 2005-06-21
Abstract: A yarn feeder has a yarn feed wheel, which preferably comprises ceramic or is coated with a corresponding material. The yarn feeder wheel, because of the choice of its material or its shaping, has improved long-term operation properties. The geometry and/or the material has low susceptibility to wear. This is attained by means of ceramic surfaces and/or the combination of a conical, continuous yarn inlet surface with adjoining striplike bearing faces in the yarn storage region and a continuous, that is, uninterrupted surface in the yarn payout region; the surfaces are shaped such that the yarn, along its way from the inlet region into the payout region, sweeps over the corresponding surfaces over the entire axial course. The striplike supporting or bearing of the yarn in the yarn storage region is attained by suitable shaping of the yarn feed wheel in the yarn storage region. Openings or slits or the like in the yarn feed wheel are not necessary but may be provided.
Patent TW-452538-B (TW)
Title: Method for producing high quality plastic sheet, substrate for a liquid crystal display and liquid crystal display cell
Inventor: DAECHER JEFFREY LAWRENCE
IPC: B29C48/08
Filed: 1999-11-02
Granted: 2001-09-01
Abstract: A method for producing high quality plastic sheet, comprising the steps of: (a) providing molten plastic resin; (b) directing the molten plastic resin to an overflow die having an inlet and an outlet; (c) shaping the molten plastic resin into a molten web using said overflow die; (d) guiding said molten web away from said overflow die; and (e) cooling said molten web to form a solid sheet; wherein the molten plastic resin is a polycarbonate containing as bisphenol components: (1) 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane; (2) a mixture of 2,2-bis(4-hydroxyphenyl)propane and 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane; a blend of (1) and (2); or a blend of (1) or (2) with a second polycarbonate containing as a bisphenol component 2,2-bis(4-hydroxyphenyl)propane. The plastic sheet is capable of use in a variety of optical and electronic display applications.
Patent TW-465172-B (TW)
Title: Device for driving a multi-phase d.c. motor
Inventor: BUTHKER HENRICUS CORNELIS JOHA
IPC: H02P6/30
Filed: 1999-12-30
Granted: 2001-11-21
Abstract: The device for driving a multi-phase d.c. motor (8) includes a multi-phase inverter (11) for supplying drive signals to the windings (2, 4, 6) of the motor. The multi-phase inverter (11) supplies a first and a second drive signal at a time to at least one winding (2) of the motor. The first and the second drive signal flow in opposite directions in the at least one winding (2). The device further has pulse width modulation means (40.1-40.6) for applying a first pulse width modulation to the first drive signal and a second pulse width modulation to the second drive signal. The pulse width modulation means (40.1-40.6) are adapted to vary the pulse width of the pulse width modulation in order to accelerate, actively decelerate or maintain the speed of the motor 8 and to select a direction of rotation of the motor.
Patent TW-497356-B (TW)
Title: Architecture suitable for executing two-dimensional discrete wavelet transform
Inventor: CHEN LIANG-GEE
IPC: H04N5/14
Filed: 2000-02-03
Granted: 2002-08-01
Abstract: The present invention provides an architecture suitable for executing two-dimensional discrete wavelet transform, which is applied in image compressing system for performing a plurality layers of frequency dividing operation to divide the frequency of an original image into a plurality of frequency bands. The architecture comprises: a transform module for dividing the frequency of an input image data into four frequency bands, wherein the frequency bands which are low in the horizontal and vertical directions are used as the input image data for the next layer of frequency dividing operation; a memory module for storing the frequency bands which are low in the horizontal and vertical directions; a multiplexer for selecting the image data to be fed into the transform module. To increase the hardware performance of the transform module in the design of the transform module, two techniques are utilized to increase the hardware efficiency. The first one is a multi-phase decomposing technique applied in a first order of horizontal filtering operation to decompose the coefficients of the filter into an odd number part and an even number part. The second one is a coefficient folding technique applied in a second order of vertical filtering operation to make every two coefficients of the filter share a set of multiplier, adder and register. Accordingly, the formed architecture for performing two-dimensional discrete wavelet transform has a 100% of hardware utilizing rate, a fast operating time, a regular data flow and a low control complexity.
Patent TW-449732-B (TW)
Title: Image display device
Inventor: AKIMOTO HAJIME
IPC: G09F9/35
Filed: 2000-02-22
Granted: 2001-08-11
Abstract: An image display device has an image display section including an insulating substrate having a matrix of pixels formed on an inner surface thereof and a liquid crystal layer sandwiched between the insulating substrate and a substrate opposing the insulating substrate. The image display device includes signal lines, driver circuits for driving the matrix of pixels via the signal lines, voltage amplifiers formed by polycrystalline semiconductor TFTs and each coupled between one of the signal lines and a corresponding one of the driver circuits. The signal lines, the driver circuits and the voltage amplifiers are formed on a surface of the insulating substrate on a side thereof facing the liquid crystal layer. A channel, a source and a drain of the polycrystalline semiconductor TFTs each are formed of a polycrystalline semiconductor film. A gate insulating film and a gate electrode are superposed on the polycrystalline semiconductor film in the order named. The polycrystalline semiconductor TFTs are provided with a second region of the channel having a threshold voltage higher than a threshold voltage of a first region of the channel on a drain side thereof.
Patent TW-448552-B (TW)
Title: Sensor package capable of improving the heat dissipation method
Inventor: SHIU FANG-SHENG
IPC: H01L23/36
Filed: 2000-04-29
Granted: 2001-08-01
Abstract: There is provided a sensor package capable of improving the heat dissipation method, which is constructed on a printed circuit board (PCB). The package includes a peripheral wall fixed on the PCB, a die pad made of copper foil, a chip, a plurality of leads made of copper foil, a plurality of bonding wires for electrically connecting the chip to the leads, a plurality of connection points, a heat sink, a heat sink connection portion, and a transparent cover. The plurality of connection points are made of copper foil and are arranged on the periphery of the back surface of the PCB. Furthermore, the connection points are manufactured to penetrate through the PCB in a thickness direction to connect to the plurality of leads, The heat sink is made of copper foil and is arranged on the back of the PCB to electrically connect to the ground leads among the plurality of leads for thereby forming a heat dissipation path by the heat sink connection portion along with the plurality of leads and the die pad. Also, the transparent cover is on the peripheral wall to seal the chip.
Patent TW-497036-B (TW)
Title: A system and its associated method for the space of a designated network
Inventor: MACHII HIROAKI
IPC: G06F17/30
Filed: 2000-05-02
Granted: 2002-08-01
Abstract: This invention is designed for the space of a designated computer network. The purpose is to provide an easy, familiar, and simple method for users. For any application program running at a client computer, for example, a word processor, the symbols (words, phrases, articles, figures, and images) selected arbitrarily by users are duplicated in a clip board. A resident linker automatically accesses the symbols in the clip board and delivers them to an URL server. The URL server has a data base that stores various symbols like 105A, 105B, iK and the corresponding combinations URL107A, 177B, iK. The server searches the data base for the corresponding URL of the received symbol 103, and then sends the searched URL back to the linker of the client computer. The linker activates the WWW browser and transfers the URL received by the servers to the WWW browser. The www browser accesses the page saved in the transferred URL and then displays it.