baber/WOPTO huggingface dataset:
Patent EP-0441201-A2 (EP)
Title: A substrate bias voltage detection circuit
Inventor: TSAY CHING-YUH
IPC: H01L27/04
Filed: 1991-01-25
Abstract: A substrate bias detection circuit is disclosed. The circuit includes first and second transistors, where the first transistor (2) has its source coupled to the substrate and where the second (4) transistor has its source coupled to a common potential (i.e., ground). The gate and drain of the first transistor (2) are connected together, and to the gate of the second transistor (4) load devices (6, 8) are connected between the drains of the first and second transistors and a bias potential from a power supply node. The threshold voltages of the first and second transistors may be different, with the difference determining the voltage that the substrate must reach, relative to the common potential, to cause the circuit to respond. Upon the substrate reaching a voltage sufficient to turn the second transistor (4) on, the drain of the second transistor (4) will be pulled toward the common potential, indicating loss of substrate bias. The circuit may be included into an integrated circuit in such a manner that power supply voltages may be disconnected from other circuitry in the event of loss of substrate bias, precluding the possibility of latchup in such other circuitry.
Patent EP-0442319-A2 (EP)
Inventor: GALLIA JAMES D
IPC: G11C29/00
Filed: 1991-01-29
Abstract: A redundancy scheme for a memory device, as well as a method for developing a redundancy scheme, resulting in improved repairability for given space constraints. A memory device is formed with a plurality of data blocks (12a-12d) having individual input/output paths. Each block comprises an array of memory cells arranged in addressable rows and columns along row lines and column lines. The array is configured in sub-blocks each comprising a plurality of the memory cells. The device includes row address circuitry for selecting a row of the memory cells, column address circuitry for selecting a column of the memory cells and address repair circuitry. The address repair circuitry is configurable to render a first portion of a first of the columns of cells responsive to the address of a portion of a second of the columns of cells. There is also provided a method for eliminating a defect in a memory device having a logical data block formed with addressable rows and columns of memory cells. A defect associated with a first column of cells is eliminated by programming a portion of a second column of cells to be responsive to the addresses of a portion of the cells in the first column.
Patent EP-0452623-A2 (EP)
Inventor: EITENMUELLER JUERGEN
IPC: A61B17/88
Filed: 1991-02-06
Abstract: In order to lessen the damage suffered by a bone screw made of low-strength material when it is screwed in, a device is provided for bending surgical screw connections, in which a nut is screwed onto a screwed-in threaded rod during the tensile stressing thereof. The device is characterised by a central tensioning rod for the threaded rod, by a screw element coaxially surrounding this tensioning rod, being displaceable relative to said rod in the longitudinal direction and being held freely rotatable around the longitudinal axis, this screw element being intended for the nut screwed onto the threaded rod, and also characterised by a supporting element which surrounds the screw element and has a lower bearing surface, on which supporting element is held a bending device which engages on the tensioning rod via deflection elements and draws the tensioning rod upwards from the bearing surface.
Patent EP-0445605-A2 (EP)
Inventor: ENDERLE ECKARD
IPC: B23Q11/00
Filed: 1991-02-22
Abstract: To increase the preloading beyond the amount which results from the dead weight of the guided machine part, a suction bell (34) is arranged between the air bearings (6a-c) on which the guided machine part is supported on its guide (2). The suction bell (34) additionally pulls the machine part against the guide by means of vacuum. 
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Patent EP-0454170-A2 (EP)
Inventor: AIZAKI AKANE
IPC: G11C5/14
Filed: 1991-04-26
Abstract: A step-down circuit is incorporated in a large scale integrated circuit for producing an internal power voltage (Vint) from an external power voltage (Vext), and the step-down circuit (12) comprises a reference signal generating unit (12c) for producing a reference signal (REF) indicative of a target level for the internal power voltage, first and second voltage regulating units (12a and 12b) for regulating the internal power voltage to the target level, and a monitoring unit (12d) monitoring the voltage level of the power voltage and producing an enable signal in the standby mode of operation when the external power voltage exceeds a predetermined level, wherein the first and second voltage regulating units are selectively enabled depending upon mode of the large scale integrated circuit, i.e. an active mode and a standby mode, as well as the level of the external power voltage so that power consumption of the large scale integrated circuit is improved.
Patent EP-0463569-A2 (EP)
Inventor: NISHIMURA MICHIYO
IPC: H01S5/34
Filed: 1991-06-20
Abstract: A semiconductor optical amplifying apparatus includes: a substrate; an active layer having a quantum well structure formed on the substrate, the active layer guiding first waveguide mode light and second waveguide mode light having a polarization direction perpendicular to that of the first waveguide mode light and amplifying the first waveguide mode light and the second waveguide mode light, the active layer having quantum wells such that projected quantization axes obtained by projecting quantization axes of the quantum wells thereof on a plane perpendicular to a light waveguide direction are inclined at 45 with respect to vibration directions of electric field vectors of the first waveguide mode light and the second waveguide mode light; and an electrode for supplying a current to the active layer.
Patent EP-0471990-A2 (EP)
Inventor: PROKISCH JOERG
IPC: H04R9/04
Filed: 1991-07-20
Abstract: The invention specifies a double-coil loudspeaker which reproduces two audio signals of an in each case different frequency spectrum, the low-frequency range as in the conventional single loudspeaker and the voice range like an optimised double-coil loudspeaker. For this purpose, it is specified to arrange the compound windings (20, 21) above one another on the voice coil former (17). <IMAGE>
Patent EP-0476274-A2 (EP)
Inventor: FISCHER BRUNO
IPC: B23P21/00
Filed: 1991-07-27
Abstract: The device allows any desired number of objects supplied in rows to be grasped and to be moved into a row arrangement at any desired distances from one another. Said device has tools (WV and WF) with displaceable and non-displaceable object carriers (OT). The objects (OBE), which are present at a grid spacing R1, are in this case held by one of the tools (WF) and transferred to the object carriers (OT) of the tool (WV). By displacement of the object carriers (OT), the objects (OBE) are moved into a desired pattern with a grid separation R2, are then transferred to the tool (WF) again and are further-processed by said tool. The device is suitable, for example, for the insertion of contact elements into insulating bodies of plug connectors. <IMAGE>
Patent EP-0477939-A2 (EP)
Inventor: FUKUDA MASAMI
IPC: G04C3/14
Filed: 1991-09-26
Abstract: The present invention provides the improved structure of a small-sized electronic instrument such as an electronic wrist watch and others in which a plurality of parts are stacked and firmly held together by tightening a screw (37). The electronic instrument includes a base plate (30) and a screw housing portion (31), which are integrally molded of a hard plastic material. The screw housing portion (31) includes a bore (31a) formed therethrough and adapted to receive a self-tapping screw (37). When the self-tapping screw (37) is threadingly received in the bore (31a) of the screw housing portion (31), a plurality of parts stacked around the screw housing portion (31) are firmly tightened and held together. The screw housing portion (31) has a shoulder (31c) including a step (31b) formed therein at the middle portion between the opposite ends. On assembly, the step (31b) engages one of the stacked parts. Even if the screw housing portion (31) is pulled upwardly by the tightened self-tapping screw (37), the part sandwiched between the self-tapping screw and the step (31b) limits the upward movement of the screw housing portion (31) on tapping. Thus, the screw housing portion (31) can be prevented from being broken off from the base plate when the self-tapping screw (37) is further tightened against the base plate (30).
Patent EP-0446028-A2 (EP)
Inventor: YOO KWONG M
IPC: A61B10/00
Filed: 1991-03-06
Abstract: The quality of image of an object (10) hidden inside a highly scattering semi-opaque disordered medium (11) is improved by using space gate imaging or time gate imaging or space time gate imaging. In space gate imaging, a small segment of the object is illuminated at a time. The scattered light is passed through a spatial noise filter (12). On the image plane, an aperture (17) is open at the position of the image segment which correspond to the segment of the illuminated object. A full image is obtained by scanning the object segment by segment and simultaneously recording the signal at the corresponding image segment. In time gate imaging, the unscattered (i.e. ballistic) portion of the pulse which contains the information of the image is temporally separated from the other (i.e. scattered) portions which contains the noise using a ultrafast laser pulse and temporal gating devices. The technique is in space-time gate imaging, the two techniques are combined to produce an image with a much higher signal to noise ratio. The time separation between the ballistic and scattered light may be increased by increasing thickness of random medium or by introducing small scatters into the random medium so as to make the medium more random. The signal to noise ratio can also be increased by making the random medium less random (so that there will be less scattered light). In addition, the signal to noise ratio can be increased by introducing an absorbing dye into the medium or by using a wavelength for the light which is in the absorption spectrum of the random medium or by making the medium more ordered (i.e. less random).
Patent EP-0459831-A2 (EP)
Inventor: KAMEI SHIGERU
IPC: H05K1/02
Filed: 1991-05-31
Abstract: A printed pattern (36) is formed on the first surface (30) of a substrate (26), and a parts having a lead (22) is mounted on the second surface (24). An eyelet (50) including a curling portion (54) and a head portion positioned on the first (30) and second (24) surfaces of the printed circuit board (26), respectively, and a cylindrical portion (50'), connecting the head and curling (54) portions, inserted into the hole (34) of the printed circuit board (26). A plurality of solder entering portions (52) are formed at equal intervals on the curling portion (54). From the solder entering portions (52), solder (40) enters into space between the curling portion (54) and the first surface (30) of the printed pattern surrounding the hole (34) of the printed circuit board (26) and the eyelet (50).
Patent EP-0452274-A2 (EP)
Inventor: TANAKA YASUYUKI
IPC: C09K19/34
Filed: 1991-04-09
Abstract: A compound represented by general formula (I) below.
       
 wherein R represents a straight chain alkyl group having 1 to 7 carbon atoms; n is an integer of 1 to 5; X represents F, Cl or CN; Y represents H or F; and a dioxane ring in a trans configuration with respect to a cyclohexane ring.
Patent EP-0475900-A2 (EP)
Inventor: BREITENFELLNER FRANZ DR
IPC: F21V7/22
Filed: 1991-09-03
Abstract: Light-reflecting element whose walls comprise a polyphenylene sulphide provided with finely divided kaolin and hydrotalcite, a reflecting metal layer being applied to at least one surface of the wall without an intermediate layer.
Patent EP-0501160-A2 (EP)
Inventor: DIAS DANIEL MANUEL
IPC: G06F12/00
Filed: 1992-01-30
Abstract: A method and apparatus, embodied in an Intelligent Page Store (10), for providing concurrent and consistent access to a functionally separate transaction entity and a query entity to a shared database, while maintaining a single physical copy of most of the data. The Intelligent Page Store (10) contains shared disk storage, and an intelligent versioning mechanism allows simultaneous access by the transaction en-tity and the query entity to the shared data. The transaction entity is presented the current data and the query entity is presented a recent and consistent version of the data. A single copy of all but recently updated pages is maintained by the Intelligent Page Store (10). The query and transaction entities operate independently of each other and are separately optimized.
Patent EP-0513551-A2 (EP)
Inventor: USUI MINORU
IPC: G09G3/36
Filed: 1992-04-16
Abstract: An image display circuit (11-13, 21-24, 92, 93) supplies gray scale data according to a video signal (RD) to a liquid crystal panel (20) to present gray-scaled display and scans the liquid crystal panel (20) N times during one field period of a video signal. The image display circuit includes a table ROM (77, 78) comparing current video signal with a previous video signal of one frame before, and generates gray scale data for N times in accordance with the comparison result. Gray scale data greater than the gray scale of the current video signal is generated when the comparison result indicates that the gray scale of the current video signal is greater than that of the previous video signal, and gray scale data smaller than the gray scale of the current video signal is generated when the gray scale of the current video signal is found smaller than that of the previous video signal. Based on the generated gray scale data, the liquid crystal panel (20) is driven with the proper gray scales.
Patent EP-0529483-A2 (EP)
Inventor: BAENZIGER MARKUS DR
IPC: C07D207/267
Filed: 1992-08-18
Abstract: Starting from 5-alkylidene or 5-benzylidenetetramic acid optically-active 4-amino-3-hydroxy-carboxylic acids are produced in the (rel-3R,4R) configuration, especially statine. The synthesis process includes the O-acylation of the tetramic acid to the corresponding 4-acyloxy-3-pyrrolin-2-one, a stereoselective hydrogenation to (rel-4R,5R)-4-acyloxy-5-alkyl or 5-benzylpyrrolidin-2-one and an enantioselective enzymatic hydrolysis of the (4R,5R)-enantiomer to the corresponding 4-hydroxypyrrolidin-2-one. The nonhydrolyzed enantiomer is separated and converted into the target compound with (3S,4S) configuration by hydrolytic cleavage of the lactam ring and the ester function and optionally introduction of an amino protective group. Analogously the (3R,4R)-enantiomer can be obtained from the 4-hydroxypyrrolidin-2-one from the enzymatic hydrolysis. The 4-amino-3-hydroxycarboxylic acids producible according to the invention are the structural elements of enzyme inhibitors.
Patent EP-0543102-A2 (EP)
Inventor: KELLNER ALBRECHT DR
IPC: G06T7/593
Filed: 1992-09-12
Abstract: The invention relates to a device for stereo vision by processing the image data of two CCD video cameras arranged closely adjacently to one another and pointing at the same scene. The image data of the detected pixels of both CCD video cameras are imaged on a neuron network acting as a distance scale which allows simultaneous identification and determination of the distance of the pixels. <IMAGE>
Patent EP-0535689-A2 (EP)
Inventor: KITAZAWA KOZO
IPC: H05K3/26
Filed: 1992-10-02
Abstract: Disclosed is a process for cleaning electronic parts or precision parts which comprises the steps of: washing the parts with a cleaning agent composition, rinsing the washed parts with water having a temperature of from 5 to 100°C, and maintaining the rinsing waste water at a temperature of 20°C or higher to effect separation of organic substances. The cleaning agent composition contains, as active cleaning components, a nonionic surface active agent and a compound selected from the group consisting of hydrocarbon compounds and slightly water soluble alkyl esters or alkyl ketones. The composition is such that 50% by weight or more of the organic substances separate from the water phase when the composition is made into an aqueous solution having an organic substance content of 5% by weight adjusted by diluting it with water or by evaporating water from it and the resulting cleaning agent aqueous solution is subsequently allowed to stand still for 30 minutes at a temperature of from 20 to 100°C.
Patent EP-0542065-A2 (EP)
Inventor: MUELLER JOERG MARTIN DIPL-ING
IPC: H04B1/66
Filed: 1992-10-31
Abstract: Method for decoding received binary signals, in particular coded speech signals, transmitted via a channel and processed on the basis of an error-correcting code by means of a channel decoder which supplies estimated values from the received binary signal, with an error-covering unit by means of which uncorrected errors are covered, characterised by the following error detection: A channel decoder is used which, in addition to the decoded information bits, provides a measure of the error probability of these bits, the bit error probability is evaluated by allocating threshold values in each case to the individual transmitted decoded bits or bit groups for their reliability and, if these threshold values are exceeded, the allocated bits are identified as correct and otherwise as incorrect or unsound. For use in particular in mobile radio and satellite radio. No code redundancy requirement with improved error probability analysis. <IMAGE>
Patent EP-0540062-A2 (EP)
Inventor: ADAMS EARL BLAINE
IPC: D01D10/00
Filed: 1989-07-14
Abstract: A process and an apparatus for spinning, water-quenching, and drawing a heavy denier, thermoplastic monofilament in at least first and second draw stages, the monofilament being advanced in the first draw stage through a steamer (26) containing a high temperature steam atmosphere and being advanced in the second draw stage in which the monofilament is subjected to radiant heating (34), the total draw ratio being at least about 5.5X. Said monofilament is advanced in the second draw stage to make at least a first pass through a heating zone for radiant heating. The monofilament is contacted with a first change of direction roll before said first pass through said radiant heating zone and is contacted with a second change of direction roll after said first pass, said monofilament contacting the surface of each of said rolls (36) through a wrap angle of between about 75 degrees and about 200 degrees. The speed of said first and second change of direction rolls is controlled so that the tension applied to the monofilament increases as the monofilament advances past each of said rolls.
Patent EP-0534619-A2 (EP)
Inventor: SANG JUNSHENG
IPC: C12N15/64
Filed: 1992-08-26
Abstract: Disclosed is a process for cloning a nucleotide sequence that encodes a protein. The process includes the steps of: preparing a recombinant molecule containing the nucleotide sequence and a vector that includes an expression control element operatively attached at linkage sites to the nucleotide sequence; introducing the recombinant molecule into host cells derived from a multi-cellular organism; identifying, among the host cells into which the recombinant molecule is introduced, cells expressing the protein by a means that specifically detects the protein; attaching the cells expressing the protein to a solid surface; and recovering the recombinant molecule from the attached cells. The same process can also be used to test the specificity of an antibody in its binding to an antigen, when a DNA sequence encoding the antigen is available.
Patent EP-0534721-A2 (EP)
Inventor: TSUBOKAWA NORIO
IPC: C08L101/00
Filed: 1992-09-23
Abstract: A method for mating a PTC element grafts a crystalline polymer to conductive particles to form a PTC composition. The step of grafting including solution polymerization. The PTC composition is formed into a PTC element. The PTC element is cross-linked after forming. The PTC element according to this invention exhibits superior PTC behavior when the temperature of the PTC element reaches the crystal melting point of the crystalline polymer.
Patent EP-0554611-A2 (EP)
Inventor: BAIN JAMES MICHAEL
IPC: G06F7/78
Filed: 1992-10-27
Abstract: A spooler (28) for a barcode information system allows one printer (10-13) to be assigned to one queue (Q₁-Q n ) of the spooler, multiple printers to be assigned to a single queue, and a single printer to be assigned to multiple queues. Each queue provides a prioritized list of jobs  (J₁-J x ) to be printed, and each printer assigned to one queue would not be capable of printing every job listed in that queue. The spooler is flexible in its configuration so as to allow print jobs to be distributed evenly among the various printers of the system, and searches each of the queues for the highest priority job capable of being printed by each free printer. The printers (10-13) need not be the same and may be incompatible in that they communicate in different languages and/or they do not have the same format options. To minimise processing time, jobs may be terminated while in the process of printing. The jobs can later be restarted at the point in the job at which termination occurred. Further, format and graphic packets previously transmitted to a printer by the spooler for one job are not retransmitted to the same printer for subsequent jobs utilizing those same format and graphic packets so as to increase the efficiency of the system.
Patent EP-0506607-A2 (EP)
Inventor: ZUELLIG KURT
IPC: F16B12/20
Filed: 1992-02-20
Abstract: The clamping device has an insert core (2) which can be inserted and fixed in one of the profiled pieces (1). The insert core (2) comprises an axially moving anchor bolt (7) whose head is designed in order to engage behind a longitudinal groove in the other profiled piece (19). A screw which is guided in a threaded bush (4) engages via a system of inclined surfaces (14, 15) in the anchor bolt (7) in order to displace the latter axially. The anchor bolt (7) carries a rod in order to support plurality of retaining pieces (17, 17') such that they can pivot. These retaining pieces and the two inner walls of the insert core (2) surround a second system of inclined surfaces (24, 26) which, in the event of an axial movement of the anchor bolt (7) against a spring (6), cause pivoting of the retaining pieces (17, 17') in order to engage behind the longitudinal groove with in each case one tab (21) which is present on the free end regions of the retaining pieces. The thread of the screw and of the threaded bush (4) may have an increased pitch. The threaded bush (4) may be provided with a lateral hole, which is expanded on the sides, for guiding the bolt (7). 
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Patent EP-0560114-A2 (EP)
Title: Wässrige flüssige Lösung eines Betains mit mindestens 40 Gew.-% Festkörpergehalt
Inventor: WEITEMEYER CHRISTIAN DR
IPC: C09K23/00
Filed: 1993-02-24
Abstract: Wäßrige flüssige Lösung eines Betains der allgemeinen Formel <IMAGE> R = Alkylrest der vorzugsweise gehärteten Cocosfettsäure oder eines Fettsäuregemisches, welches im Mittel der Cocosfettsäure entspricht, wobei die Lösung einen Festkörpergehalt von mindestens 40 Gew.-%, einen pH-Wert von 5 bis 8 und einen Aminoamidgehalt von <= 1 Gew.-% aufweist, gekennzeichnet durch einen Gehalt an 1 bis 3 Gew.-% (bezogen auf Lösung) einer oder mehreren gesättigten Fettsäuren mit im Mittel 8 bis 18 Kohlenstoffatomen oder einer oder mehreren ungesättigten Fettsäuren mit im Mittel 8 bis 24 Kohlenstoffatomen und 0 bis 4 Gew.-% (bezogen auf Lösung) Glycerin.