baber/WOPTO huggingface dataset:
Patent EP-0463348-A2 (EP)
Inventor: HORNBECK LARRY J
IPC: G02B26/08
Filed: 1991-05-16
Abstract: Bidirectional operation of the bistable DMD is preferred over unidirectional operation because it eliminates contrast degradation caused by duty-factor effects and permits lower voltage operation. However, bidirectional addressing requires either two drain lines and two transistors per pixel or one drain line and three transistors per pixel. An addressing scheme for bidirectional operation is disclosed that requires only a single drain line and one transistor per pixel. For megapixel DMDs used for high-definition television applications, this addressing scheme dramatically lowers the transistor count, with expected improvements in chip yield and cost.
Patent EP-0509134-A2 (EP)
Inventor: SASS HEINER
IPC: B01D53/14
Filed: 1991-09-13
Abstract: A process and installation are described in which wastes, particularly scrap metal, contaminated with organic components are converted by means of a series arrangement of a carbonisation stage and a high-temperature gasification stage with the lowest possible energy consumption into re-usable materials and waste materials suitable for low-cost disposal.
Patent EP-0486827-A2 (EP)
Inventor: GEJIMA SEIJI
IPC: C04B35/499
Filed: 1991-10-22
Abstract: The dielectric material includes a pre-baked powder containing Pb(Mg 1/3 Nb 2/3 )O₃, BaTiO₃, and BaZrO₃, and lead oxides alone or lead oxides and copper oxides in combination. Thus, the dielectric material is sintered at low temperatures of 800-1000°C, and makes it possible to use inexpensive electrode materials such as copper, silver, and silver-palladium alloy for the electrode. The dielectric material also makes it possible to produce a ceramic condenser or a thin condenser having a stable capacitance irrespective of changes in temperature.
Patent EP-0492262-A2 (EP)
Inventor: AHONEN ANTTI ILAMRI
IPC: A61B5/05
Filed: 1991-12-10
Abstract: The invention concerns a superconducting device used to measure temporally and spatially varying magnetic fields generated by sources inside the object to be investigated. The invention consists of a body divided into separate and easily interchangeable self-supporting modules, interconnected by connectors. The superconducting magnetometer or gradiometer elements (12) have been attached by means of connectors (11) to the cross-connection/support element (6); this element (6) is attached to a connecting element (4) by means of connectors as well. The connecting element (4) contains also the electric components (5) necessary for connecting the SQUIDs to the room temperature electronics (14). The connecting element (4) is attached to the neck plug (3), comprising a stiff thermal isolation preventing convection and a ribbon cable made of parallel twisted pairs. The element (3) is self-supporting and it forms an integral part of the magnetometer support structure. The cables in the neck plug have been made out of wires having a relatively high resistance in order to minimize the heat leak between the room temperature and the cryogenic environment of the magnetometers; the excess noise caused by the resistive leads has been compensated, for example by increasing the SQUID gain using positive feedback.
Patent EP-0440290-A2 (EP)
Inventor: BERKERS ANTONIUS JOHANNES
IPC: A01F25/20
Filed: 1991-01-25
Abstract: The invention relates to a mobile transport device for removing crop from a silage pit, said device being provided with a frame (1) with a loading platform and a loading space located. The loading space has been bounded at least by upright side boards (18-20). An upwardly extending loading board (33) is located near one end of said loading space, whereby said loading board (33) near its upper end has been pivotally coupled about a horizontal pivot axis to a pair of arms (28) located near the sides of the transport device. Said arms (28) near their ends remote from the loading board (33) have been pivotally coupled to the frame (1), by means of further pivot axes (27) extending parallel to said first cited pivot axis, whilst between at least one arm (28) and the frame (1) there is provided a setting means (29), by means of which the arms (28) with the loading board (33) pivotable about said further pivot axes (27) with respect to the frame (1). A further pair of telescopically adjustable arms (35) located near the sides of the transport device are disposed between the loading board (33) and the frame (1), said arms (35) with their respective ends being pivotally coupled, likewise by means of horizontal pivot axes (36, 39), to the loading board (33) and the frame (1) respectively.
Patent EP-0472258-A2 (EP)
Inventor: RABAA WADOOD EL
IPC: E21B43/16
Filed: 1991-02-19
Abstract: A first zone (I) of a subterranean formation is hydraulically fractured with a first fluid (A), and an adjacent second zone (II), with a second fluid (B) which preferably is chemically reactive with the first fluid to produce a precipitate or gel upon contact therewith. Preferably, the fluids are separated from one another in the wellbore (4) and are pumped into their respective zones at approximately the same rate so that they spread radially outward from the wellbore into the formation. Upon contact, the two fluids preferably react with one another to form a precipitate or gel at the interface between the two zones, thereby arresting further fracture propagation between the zones.
Patent EP-0447174-A2 (EP)
Inventor: ROUNBEHLER DAVID P
IPC: G01N30/74
Filed: 1991-03-12
Abstract: Disclosed are a method and apparatus for high speed, selective detection of vapors of specific compounds, particularly nitrogen-containing compounds, utilizing a bypass branch (90) and high speed gas chromatography (GC1,GC2) for improved selectivity and sensitivity of detection. A system with two gas chromatographs (60,64) alternating in series with two pyrolyzers (62,70) provides two time intervals of detection in a downstream detector (80), with the second time interval containing signals delayed and further separated relative to signals from the first time interval. The bypass branch (90), in diverting a portion of the flow of gas samples from passage through the second gas chromatograph and second pyrolyzer, avoids interferences in the first time interval of detection from non-GC-retained compounds decomposed in the second pyrolyzer.
Patent EP-0447251-A2 (EP)
Inventor: HUMPAGE ROY
IPC: B21C37/15
Filed: 1991-03-14
Abstract: A polygonal tube is produced from metal strip by forming rows of recesses (15) and projections (16) along opposite edges of the strip and then bending the strip until each projection is received in a corresponding recess to form the tube. 
     The projections are then squeezed between opposed surfaces (26,28) one inside and other outside the tube. The surface inside the tube forms a groove (27) in the tube wall at the inside of the tube, spreads each projection to take up any clearance between edges of the projections and boundaries of the corresponding recesses. The surface outside the tube allows the tube to remain flat.
Patent EP-0468622-A2 (EP)
Inventor: MEYER GARY D
IPC: H01H19/635
Filed: 1991-05-17
Abstract: A variable resistance switch includes first and second flexible contact arms (24,22) engageable by a pair of cam followers (94,95) operable sequentially by an actuator (16) movable in a first and an opposite direction. The actuator (16) also carriers a wiper (30) movable therewith over a variable resistance (32) coupled to a terminal (41). The first contact arm (24) is operable upon initial movement of the actuator (16) in a first direction to complete a first circuit through the switch, and the second contact arm (22) is operable upon further movement of the actuator (16) in the first direction to complete a second circuit through the switch and to place the variable resistance (32) in circuit. Further movement of the actuator (16) in the first direction is operable to move the wiper (30) over the variable resistance (32) to vary the resistance in circuit with the terminal (41). A pivotal trigger (18) is coupled to the actuator (16) for moving the same in the first direction, and a spring (20) biases the actuator (16) in the opposite direction.
Patent EP-0493058-A2 (EP)
Inventor: CARLOTTA MICHAEL
IPC: B41J2/175
Filed: 1991-12-23
Abstract: An ink cartridge for an ink jet printer that supplies ink at a negative pressure by means of a lower ink supply chamber (6) located below the print head (1) of the printer. The cartridge includes a cartridge housing having an upper chamber (7) and the lower chamber (6) and a first wall (23) therebetween. The upper chamber (7) has an aperture (4) exposed to atmosphere and it also contains a capillary foam (8) having a specifiable capillarity for absorbing ink. The foam (8) in the upper chamber (7) is unsaturated, producing a negative pressure on the ink in the upper chamber (7). A supply line (3) is provided which conveys ink from the lower chamber (6) by capillary action of the nozzles to the printhead (1). A second capillary foam (9) having a specifiable capillarity greater than the capillarity of the first capillary foam (8) is in fluidic communication with the upper and lower chambers (7, 6) and with the supply line (3). The lower chamber (6) is airlocked until the ink level in the upper chamber (7) is sufficiently low to allow the passage of air through the pores.
Patent EP-0461055-A2 (EP)
Inventor: INTERING MICHEL
IPC: B05C11/02
Filed: 1991-05-29
Abstract: The invention relates to a gluing station in which each web to be glued passes into an individual gluing device (13) allowing different gluing modes. Each gluing device (13) comprises a container (21) containing a glue bath (33) and fixed to a lateral support (20) carrying members for guiding the web (3). The latter comprise a moving guide (27) whose position can be changed manually by pivoting about a horizontal axis (37) in order to define, by choice, two different paths for the web. A first path passes into the glue bath (33) for gluing both sides of the web. A second path (3a) remains above the bath and passes under a dispenser (32) which glues only the upper face of the web. Different glues can be applied to different webs. Application to the manufacture of tubular elements from cardboard. <IMAGE>
Patent EP-0440583-A2 (EP)
Inventor: HELFAND DAVID
IPC: C08F8/32
Filed: 1991-01-25
Abstract: The reaction products of polyallylnadic anhydride and various polyamines are latent hardeners for use in epoxy resins having more than one 1,2-epoxy groups per molecule. Mixtures of these products and epoxy resins are stable at room temperature for extended periods, yet cure quickly at elevated temperatures to yield products with high glass transition temperatures.
Patent EP-0466668-A2 (EP)
Inventor: ANTON MARK ALLEN
IPC: G02B6/24
Filed: 1991-05-03
Abstract: A fiber optic connector module is disclosed having a chassis (12) with walls defining a chassis interior and with an access opening exposing the interior. A connector panel (34) is provided sized to cover the access opening with the panel pivotally secured on one side to the chassis for the panel to be pivoted between an open and closed position. A plurality of fiber optic connectors (52) are carried on the panel for pivotal movement therewith.
Patent EP-0501481-A2 (EP)
Inventor: KOBATAKE HIROYUKI
IPC: H03K17/16
Filed: 1992-02-27
Abstract: A current controller (36) includes a first MOSFET of P type (40) connected at a drain to a first node (42), at a gate to the input terminal (IN) and at a source to power supply (VCC), a second MOSFET of N type (44) connected at a drain to the first node (42) via a first resistor (45), at a gate to the input terminal (IN) and at a source to ground (GND), a third MOSFET of N type (46) connected at a drain to the output terminal (OUT), at a gate to the first node (42) via a second resistor (48) and at a source to ground (GND), and a capacitor (50) connected between the gate of the third MOSFET (46) and ground (GND). The first and second resistors (45,48) and the capacitor (50) are set so that the maximum changing rates of rising and falling currents supplied from the output terminal (OUT) through the third MOSFET (46) are equalized. Therefore, levels of low level data are equalized between the positive and negative sides.
Patent EP-0518021-A2 (EP)
Inventor: STRECK ROLAND DR
IPC: C07C11/21
Filed: 1992-04-10
Abstract: In the process, the  alpha , omega -diolefins are reacted in the liquid phase at a temperature of 150 to 350 DEG C and the organoaluminium compounds correspond to the formula AlX3 or AlX2H, where X represents an aliphatic, alicyclic or aromatic hydrocarbon radical having 1 to 30 carbon atoms. …<??>The relatively high molecular weight hydrocarbons prepared by this process are oligomeric, mainly linear and contain reactive double bonds.
Patent EP-0516042-A2 (EP)
Title: ATM cell error processing system
Inventor: TAKECHI RYUICHI
IPC: H04L12/70
Filed: 1992-05-26
Abstract: An ATM cell error processing system includes a plurality of error detectors (30) for respectively detecting predetermined cell errors and for respectively generating decision signals, an error editing unit (31) which is operatively coupled to the error detector and determines, on the basis of the decision signals, whether or not a cell related to the decision signals should be discarded. A buffer (32), which is coupled to at least one of the error detector, temporarily stores the cell. An error cell discarding unit (33), which is coupled to the error editing unit and the buffer, discards the cell from the buffer when the error editing unit determines that the cell should be discarded and relays the cell when the error editing unit does not determine that the cell should be discarded.
Patent EP-0530645-A2 (EP)
Inventor: OH SANG G
IPC: G10L11/00
Filed: 1992-08-25
Abstract: A method of processing a signal having characteristics and received from a telephone line is presented. The method includes defining a frame by measuring a plurality of samples from the signal over a predetermined period. Additionally, linear prediction coding coefficients of a selected group from the plurality of samples are determined. Further, the variance of the linear prediction coding coefficients are determined and the variances compared to a reference variance. A heuristic rule is applied to a selected characteristic of the signal to determine if the signal comprises a voice signal.
Patent EP-0518390-A2 (EP)
Inventor: BENDA MARK
IPC: H05K1/18
Filed: 1986-07-14
Abstract: A plug and jack combination where the plug includes a printed wiring board (942) sandwiched between two halves of a shell (948, 947). A first surface (941) of the board has first and second contact areas (961, 964) which engage electrical contacts within the jack. A keeper spring (948) is mounted within the shell for retaining the plug within the jack. A service cord (950) is provided so that the tip and ring conductors of the cord make contact with the first and second contact areas, and the grounding shield of the cord makes contact with the keeper spring.
Patent EP-0521545-A2 (EP)
Inventor: DAVIS RICHARD STEPHEN
IPC: F02B77/08
Filed: 1992-06-11
Abstract: A system is disclosed for diagnosing faulty check valve operation in an internal combustion engine (10) having a back flow preventing check valve (32) positioned in each intake air passage (26) leading to an engine cylinder (16). The system measures the pressure in the engine air induction system (12), upstream of each check valve (32) and downstream from an air intake throttle valve (30). The system produces an indication of faulty check valve operation when an abnormal fluctuation in the measured pressure is detected. Preferably, the diagnostic function is performed when the engine (10) operates in a defined mode, at idle speeds with light engine loading, where the pressure differential appearing across each check valve (32) is essentially maximized. The engine cylinder (16) associated with a faulty check valve (32) is identified based upon the sensed rotational position of the engine (10) when an abnormal fluctuation in pressure is detected.
Patent EP-0538970-A2 (EP)
Inventor: KREH ROBERT PAUL
IPC: C23F11/173
Filed: 1992-10-09
Abstract: A method of inhibiting corrosion of a metal surface in an aqueous system having a pH of at least 6, comprising maintaining in the aqueous system, in an amount effective to inhibit corrosion, a water-soluble, organic-rare earth metal chelate which is derived from a rare earth metal having an atomic number from 57 to 71 and an organic chelant. The organic chelant provides not only water solubility but surprisingly enhanced corrosion inhibiting activity. The water-soluble, organic-rare earth chelates may be advantageously combined with other corrosion inhibitors such as zinc chelates, organophosphonates, phosphates, chromates, molybdates, and the like.
Patent EP-0497446-A2 (EP)
Inventor: WILDON BRADLEY N
IPC: F24H1/18
Filed: 1992-01-03
Abstract: In a hot water heater (10), a bottom base pad (34) of relatively rigid insulating material has an outer tapered side (38) allowing clearance of the bottom edge (30) of the outer jacket (14) past the top (40) of the peripheral annular portion (36) of the base pad (34) without snagging, to facilitate assembly, and providing decreasing clearance between the tapered side (38) and the jacket (14) as the jacket is slid downwardly.
Patent EP-0499373-A2 (EP)
Inventor: BADYAL RAJEEV
IPC: B41J2/05
Filed: 1992-01-24
Abstract: A circuit (10) for controlling the energy delivered to a heater resistor (RH) of a thermal inkjet printhead. The circuit includes a decoder (12) for receiving an address for the heater resistor in a multiplexed environment. When the heater resistor is addressed, the output of the decoder is level shifted through a pair of inverters (24, 26) and transmitted to the gate of a PMOS driver (34) that delivers the energy to the heater resistor (RH). The PMOS driver (34) responds to the voltage level of the adjacent inverter output in setting the level of the driver output voltage that is applied to the resistor (RH). Feedback circuitry in the form of an analog (32) or digital (42) comparator compares the driver output voltage (VOUT) against a reference voltage (VREF). The comparator's output signal is fed back through the level shifter (16) as the inverter output that is applied to the gate of the PMOS driver (34). The inverter output adjusts the driver output voltage so as to maintain the voltage (Vo) across the heater resistor at a level that delivers a desired amount of energy to the heater resistor (RH).
Patent EP-0522699-A2 (EP)
Inventor: DUBOIS SAMUEL CONRAD
IPC: B23K35/30
Filed: 1992-05-28
Abstract: A substantially iron-free braze filler metal composition exhibiting corrosion resistance both at the boundary layer between the base metal and the filler metal and in the filler metal fillet, said composition comprising: 
   a nickel based nominal alloy containing effective amounts of:
     (a) a fillet metal corrosion inhibitor for protecting the fillet metal from corrosion due to the diffusion of iron from the base metal into the filler metal fillet during brazing; and   (b) a diffusing carbide-forming base metal protector having a higher affinity for forming carbides than chromium, thereby substantially reducing chromium carbide formation at the grain boundaries in the base metal and at the diffusion layer,       and a process for the preparation of said braze filler metal composition.
Patent EP-0531122-A2 (EP)
Inventor: OKAJIMA HIROYUKI
IPC: G02F1/1335
Filed: 1992-09-03
Abstract: A liquid crystal display device comprises a liquid crystal display panel (10), a light source (111) for illuminating a back surface of the liquid crystal panel, a light guide (13) for transmitting a light emitted by the light source to the back surface of the liquid crystal panel, a holding member (112,113) for accommodating and fixing the light source at one end portion thereof and the light guide so that a surface of the light guide faces the back surface of the liquid crystal display panel, and a frame member (12) for attaching the liquid crystal panel to the holding member so as not to disturb transmission of a heat emitting from the light source to the air through the holding member. 
     Thus, transfer of the radiated heat to the frame member 12 through the holding member can be prevented. As a result, the temperature difference which occurs in the liquid crystal display panel 10 can be reduced, and occurence of irregular display density can be prevented and the display quality can be improved.
Patent EP-0547830-A2 (EP)
Inventor: TAI JY-DER
IPC: G06F12/02
Filed: 1992-12-09
Abstract: A method and circuitry are provided for sequentially accessing a memory array (112), where the memory array comprises a plurality of memory cells (140a-d). A plurality of the memory cells (140a-d) are selected to output respective stored data bits in response to a word line (138a) coupled to the memory cells (140a-d). The respective stored data bits output by the memory cells (140a-d) are received with a plurality of bit lines (158a-d) each coupled to an associated one of the memory cells (140a-d). Each bit line (158a-d) is selectively coupled to an output line (160b), so that in response to one of a plurality of select lines (124a-d) the output line (160b) accesses the respective stored data bit from an associated one of the bit lines (158a-d). By shifting between the select lines (124a-d), the output line (160b) accesses the respective stored data bits in a predetermined order.
Patent EP-0570881-A2 (EP)
Inventor: JAEKEL FRANK DR
IPC: B01J2/30
Filed: 1993-05-17
Abstract: The process is characterised in that an aqueous solution or suspension of a hydrate-forming compound is applied to a particulate starting material which, during the application of the aqueous solution or suspension, has a temperature below the transition temperature of the hydrate-forming compound, and the aqueous solution has a temperature above the transition temperature, and granulation is carried out subsequently or simultaneously, and the resulting granules are dried where appropriate.
Patent EP-0580066-A2 (EP)
Inventor: SATOH ISAO
IPC: G11B7/12
Filed: 1993-07-14
Abstract: A write/read device comprises an optical head 4A for a single-sided optical disk, an optical head 4B for a double-sided optical disk, a sensor 23 for deciding if a record medium is a single-sided or double-sided optical disk, and a multiplexer 15 for selecting either of the optical head 4A or 4B according to the decision for writing or reading information. Thus, the write and read device can write or read optical information for both single-sided and double-sided optical disks.
Patent EP-0609569-A2 (EP)
Inventor: HASEGAWA SHIGEO
IPC: C09D123/10
Filed: 1993-12-30
Abstract: A lining for a metal, a lining powder and a lining resin composition which comprise a mixture of a maleic acid-modified polypropylene and a polypropylene, or a mixture of the above-mentioned mixture and an ethylene propylene rubber and/or an antioxidant; and a lining method.
Patent EP-0594402-A2 (EP)
Inventor: SHIGEMOTO NAOTO C O NEC CORPOR
IPC: H04L7/10
Filed: 1993-10-19
Abstract: A clock phase signal of each time slot of a TDM signal is stored into a corresponding memory location and a clock phase signal of a subsequent time slot is read from a memory location corresponding to the subsequent time slot for recovering clock pulses. A decoder is synchronized with the clock pulses for decoding an encoded digital signal of each time slot to produce a decoded signal. The error rate of the decoded signal of each time slot is detected and compared with a prescribed value. When the detected error rate is determined to be higher than the prescribed value, the write operation of the memory is disabled to prevent the clock phase signal stored in a memory location corresponding to the decoded signal from being overwritten with a subsequent clock phase signal.