baber/WOPTO huggingface dataset:
Patent EP-0422417-A2 (EP)
Inventor: ALBERTY MICHAEL DIPL-ING
IPC: H04L27/20
Filed: 1990-09-17
Abstract: A method for generating a QPSK signal is to be indicated which can be implemented with minimal circuitry expenditure. The carrier signal (T) to be modulated with QPSK is fed via two series-connected phase shifters (PS1, PS2), each of which can be switched to two different phase states (0 DEG / alpha , 0 DEG /180 DEG ). One of the two phase shifters (PS1, PS2) is activated by only one of the two data signals (I, Q). The other phase shifter (PS2) is activated by a signal (C) which is produced from the combination of the two data signals (I, Q). <IMAGE>
Patent EP-0424939-A2 (EP)
Inventor: YAMAO SHINOBU C O IDEMITSU PET
IPC: C08G75/029
Filed: 1990-10-25
Abstract: A polyarylene sulfide resin composition contains a polyarylene sulfide containing at least one group selected from a group consisting of an amino group and an amide group, a polyamide resin, an epoxy resin and, as needed, a filler. A further composition contains 100 parts by weight of the polyarylene sulfide, 0.05 to 5 parts of the epoxy resin, and 5 to 400 parts of the filler. Another type of the resin composition contains the polyarylene sulfide, the polyamide, a compound selected from an acid, an acid anhydride and an acid halide, each having in its molecule not less than two functional groups reactive with the amino group or the amide group, and, as needed, the filler. A further type of the resin composition contains the polyarylene sulfide, the compound and, as needed, an inorganic filler subjected to surface treatment with a silane type coupling agent. A still further type of the resin composition contains the polyarylene sulfide and the compound. A still further type of the resin composition contains the polyarylene sulfide and the inorganic filler subjected to surface treatment with an epoxysilane type coupling agent.
Patent EP-0439770-A2 (EP)
Inventor: TIPPMER KURT
IPC: C02F1/44
Filed: 1990-12-17
Abstract: A process is described for removing harmful substances and recovering valuable substances from the waste water stream of a coal processing plant. According to the invention, waste water produced in the coal conversion and in coke oven gas purification, preferably downstream of the NH3 stripped, is passed directly to a fractional reverse osmosis (FRO) and is there separated into various aqueous fractions and the aqueous solution of harmful substances is concentrated in a one- or multi-step evaporation system (EDS) and the dissolved harmful substances are destroyed by means of a temperature-activated pressure hydrolysis (TDH) and the residual non-toxic salts are separated off from the hydrolysate by means of a crystallisation (KR).
Patent EP-0383535-A2 (EP)
Inventor: RUMREICH MARK FRANCIS
IPC: H04N5/64
Filed: 1990-02-13
Abstract: An apparatus for improvement of stereophonic sound. A source (8) of stereophonic sound is provided with two internal loudspeakers (14,16) and external access (30,32) to the stereophonic signal. A "wall of sound" effect is achieved by coupling of the stereophonic signal to at least two external loudspeakers (18,20) with the internal loudspeakers being fed a mixture of the stereophonic signal at reduced power.
Patent EP-0403222-A2 (EP)
Inventor: GLUNTZ DOUGLAS MARVIN
IPC: G21D3/12
Filed: 1990-06-12
Abstract: The present invention discloses an improved methodology for achieving the desirable feature of recirculation flow control in a natural-circulation BWR, enabling reactors utilizing the method to perform in load-following modes of power operations. In its broadest aspects, the method is based on shunting (36,38) adjustable amounts of coolant from the downcomer region (17) or core annulus region of a natural-circulation BWR to the core upper plenum region (26). This coolant thereby by-passes the portion of the ordinary natural--circulation flow path that would take the coolant down to the bottom of the reactor where it flows into a plenum (22) underneath the nuclear core (24) and thence (for the substantial majority of such coolant) flows upward through fuel assemblies and only then into the core upper plenum region. The key effect of such shunting/by-­passing is to reduce the differential hydrostatic head available for circulating coolant through this latter flow path, i.e. through the fuel assemblies, and the rate of coolant flow along this flow path thus diminishes in accordance with the arnount of flow hydrostatic head reduction in accordance with well-known principles.
Patent EP-0411925-A2 (EP)
Inventor: MECHANIC GERALD L
IPC: C07K1/00
Filed: 1990-08-01
Abstract: The present invention relates to a process for cross-­linking a proteinaceous material. The process comprises: 
i) soaking the material to be cross-linked in an agueous solution of high osmolality; ii) incubating the material in an agueous buffer including an amount of a photooxidative catalyst sufficient to catalyze photooxidation of the material; and iii) irradiating the material and the catalyst of step (i) with light that includes a range of wavelengths selectively absorbed by the catalyst. Irradiation is effected under conditions such that cross-linking of the material occurs. In a further embodiment, the present invention relates to a cross-linked product produced by the above-described method.
Patent EP-0436388-A2 (EP)
Inventor: JEZIC ZDRAVKO P
IPC: B32B27/00
Filed: 1990-12-27
Abstract: Fiber, preferably microfibers, of a syndiotactic vinyl aromatic polymer, are produced by a melt-blowing process in which a vinyl aromatic polymer having a high degree of syndiotacticity is supplied in a molten form from at least one orifice of a nozzle into a gas stream which attenuates the molten polymer into fibers. Such fibers are particularly useful for preparation of nonwoven mats having utility in the field of high temperature filtration, coalescing and insulation.
Patent EP-0416966-A2 (EP)
Inventor: GAUTIER JEAN-PIERRE
IPC: B60T13/56
Filed: 1990-07-31
Abstract: L'invention concerne un servomoteur pneumatique comprenant un boîtier (12) divisé en deux chambres (7,8) par une structure de paroi mobile (6), constituée d'un plateau (9) et d'une membrane (10) fixée par son bord périphérique extérieur au boîtier (12), et formant un bourrelet (11) dans l'espace situé entre le plateau (9) et le boîtier (12). Selon l'invention, le plateau (9) comporte à son bord extérieur un prolongement cylindrique (13) autorisant le guidage de ladite paroi mobile (6) dans ledit boîtier (12). Application pour l'assistance au freinage des véhicules automobiles. <IMAGE>
Patent EP-0426648-A2 (EP)
Title: Fahrzeugtür für Personenkraftwagen
Inventor: GARNWEIDNER PETER
IPC: B60J5/04
Filed: 1990-10-09
Abstract: Fahrzeugtür (2) für Personenkraftwagen, die im geschlossenen Zustand mit einem Teil der zum Wageninnenraum weisenden unteren Seite des Türrahmens (4), an der nach außen weisenden Haut des Türschwellers oder an einem an diesen angeordneten Teil anliegt, wobei im Bereich des anliegenden Türrahmens in der Tür (2) eine horizontale Stütze zwischen Türrahmen (4) und Türaußenhaut (6) angeordnet ist und die Stütze etwa normal zur Türebene steht.
Patent EP-0451479-A2 (EP)
Inventor: MAYER KURT
IPC: B23Q3/16
Filed: 1991-02-28
Abstract: Machining centre for flat, plate-like workpieces which can be fastened in a working plane and can be machined according to a preselected control program sequence, having drilling and milling tools which are traversable in the parallel plane of the plate-like workpieces in the x- and y-axis in path curves controllable by CNC-program and are arranged on movable tool-holder slides or tool-holder arms traversable in the x- and y-axis in the area of the working plane by means of mechanical actuators, and also having stop and fastening means for the workpieces in the working plane, consisting of stop blocks and work-clamping devices which can be displaced as desired in the working plane in the x- and y-axis and can be fixed in the functional positions by adhesive or fastening means. By means of an additional control program, the displacement of the stop blocks and the work-clamping devices from their waiting positions or their previously assumed positions into their new functional positions preselected according to the additional control program can be activated by influencing the actuators of positioning devices traversable as desired in the working plane, and in fact by at least one positioning device having at least one driving member, the stop blocks and work-clamping devices being designed for the positive-locking engagement of the driving member. <IMAGE>
Patent EP-0453753-A2 (EP)
Inventor: HAKEY MARK C
IPC: G03F1/00
Filed: 1991-03-15
Abstract: The invention provides a technique which enables projection lithography to extend to the sub-half micron range by compensating the Depth of Focus (DOF) budget lost in substrate topography with a projection of a non-planar image which is conformal to the substrate (10). The method of achieving a non-planar image field includes the formation of a mask reticle (20) which is a replica of the surface of the semiconductor (10) to be exposed, thus, eliminating substrate topography from the optical DOF budget.
Patent EP-0453974-A2 (EP)
Inventor: PORRET OLIVIER
IPC: B31B50/00
Filed: 1991-04-19
Abstract: The invention relates to a "CAMERA-FLASH" unit on the margin table (M) of an insertion station (1) of a machine for cutting sheets (F) for the purpose of producing packages. The "CAMERA-FLASH" unit acquires an image of the colour registration marks provided on each successive sheet during the previous printing. The "CAMERA-FLASH" unit is associated with an "IMAGE PROCESSING SYSTEM" in which a reference image taken from a model sheet has previously been stored. On the basis of a comparison, by image processing, of the image taken of each sheet with the stored image of the model, it is possible to check if the production quality criteria are met. …<IMAGE>…
Patent EP-0455144-A2 (EP)
Inventor: BRADLEY PIERO JOHN
IPC: G02F1/015
Filed: 1991-04-25
Abstract: The modulator employs an interferometric structure including, in at least one of the two branches, means (3a, 3b) for giving the signals going along the two interferometer branches an amplitude ratio depending on the value taken by a control signal and a desired relative phase. In an embodiment, the amplitude modulators are multiple quantum well asymmetric cavity Fabry-Perot devices (3a, 3b) biased in complementary way by respective binary signals, the levels of which are associated with voltage values such as to bring the devices to total absorption or maximum reflectivity conditions respectively; thus in correspondence with each level only one of the two cavities reflects part of the received radiation. The optical signal to be modulated is sent to one of the cavities with a first state of polarization, which is maintained also in the reflected radiation, and to the other cavity with a polarization capable of generating a second state of polarization in the reflected radiation.
Patent EP-0467048-A2 (EP)
Inventor: HORNBECK LARRY J
IPC: H04N7/015
Filed: 1991-05-24
Abstract: The bistable deformable mirror device circuitry 83 used in a high-definition television (HDTV) 82 application must be capable of supporting at least 128 grey levels, using pulse-width modulation. If the DMD is line-updated, then the minimum field time to support 128 grey level cannot be achieved because of the time required to perform a resonant reset once each line. This disclosure shows how the DMD can be field-updated in order to achieve the minimum required field time.
Patent EP-0467308-A2 (EP)
Inventor: WORSCH DETLEV DR
IPC: C07D213/80
Filed: 1991-07-16
Abstract: There is described a new process for the preparation of 2-hydroxy-3-halo-5-nitropyridines, in which a 5-halo-6-hydroxynicotinic acid is nitrated to give the end product. 
<??>The resulting pyridines are valuable intermediates for syntheses of active compounds.
Patent EP-0475067-A2 (EP)
Inventor: ASAKAWA KAZUSHIGE
IPC: H01R12/16
Filed: 1991-08-05
Abstract: An electrical contact (14) is disclosed for use in an electrical connector (10) to be surface mounted to a printed circuit board (24). The contact (14) includes an inverted U-shaped portion defining a pair of depending legs (26,28). One of the legs (26) has a foot portion (30) for electrical connection to an appropriate circuit trace on the printed circuit board (24). A terminal portion (34) is turned upwardly from a distal end of the other leg (28) for termination with an appropriate mating terminal (42). The contact (14) is in the form of a one-piece metal component. In the preferred embodiment, the terminal portion (34) of the contact is in the form of a terminal pin, with the pin and the legs (26,28) of the inverted U-shaped portion of the contact all being generally parallel.
Patent EP-0483863-A2 (EP)
Inventor: HIGASHIYAMA KAZUYASU
IPC: C08K5/12
Filed: 1991-10-31
Abstract: A poly(vinyl chloride)-based resin composition containing 5 to 100 parts by weight of condensed polycyclic compound consisting of not less than three rings and/or ring assemblage consisting of not less than three ring systems to 100 parts by weight of poly(vinyl chloride)-based resin is disclosed, which can be used as an absorber of vibration energy.
Patent EP-0493707-A2 (EP)
Title: Light lock
Inventor: DIPIETRO MATTHEW
IPC: G03B17/32
Filed: 1991-12-09
Abstract: A light lock (34) is formed by a channel (36) with spaced walls (38,40) with the channel being open at one side. A light absorbing material (44) is positioned in the channel and has bristles (48) projecting toward the opening. A flange (50) projects through the opening toward the material but is spaced from the bristles. The channel can be formed on one portion of a magazine, cassette or the like, for light tight materials such as photographic film, and the flange can be formed on another portion of such a magazine or cassette.
Patent EP-0461732-A2 (EP)
Inventor: BASTIAN LEHYMAN J
IPC: A47K10/36
Filed: 1988-03-01
Abstract: There is disclosed a cabinet for dispensing a web wound on a core, the cabinet having a door (17) and means (32,33) for supporting the roll (30) in the cabinet, said supporting means (32,33) having at least one arm (91) spreadable in the axial direction of the roll (30) to facilitate mounting a new roll in the cabinet, means (94), mounted in the cabinet, responsive to the position of the door for stabilizing the spreadable arm (91), the arm stabilizing means (94) having a first position that allows spreading of the one arm (91) when the door is open and a second position that limits spreading of the one arm (91) when the door is closed.
Patent EP-0488455-A2 (EP)
Inventor: KNAPP ALAN GEORGE
IPC: H04N5/66
Filed: 1991-11-22
Abstract: In an addressable matrix device, for example an active matrix liquid crystal display device comprising a panel (10) having a row and column array of addressable picture elements (12), in which the elements are addressed via sets of row and column address conductors (14,16) by row and column drive circuits (24,26) providing sequential outputs, at least one of the circuits (24,26) consists of a sequence generator (28,29) comprising an electro-optic switching arrangement having light sensitive means including light sensitive elements (42), e.g. photodiodes, integrated on the panel and controlling the outputs of individual output stages (38) and light emitting means (35) including a plurality of light emitting elements (36) cooperating with the light sensitive elements, the light emitting elements being selectively operable to produce a sequence of outputs from the output stages, for example in order to scan the row address conductors. The electro-optic switching arrangement requires comparatively few external connections to the panel and is of simple form so that high yields are obtained.
Patent EP-0455317-A2 (EP)
Inventor: TRAORE IBRAHIM
IPC: H01H50/32
Filed: 1991-04-26
Abstract: A mechanical interlocking device for preventing the simultaneous switching on of two electromagnetically operable contactors (21, 22) has a slider (3) which can be displaced by the switching-on movement of a drive device (23, 24) of the one contactor (21, 22) approximately at right angles to the direction of the switching movement of the contactors (21, 22), for the purpose of blocking the drive device (23, 24) of the other contactor (21, 22) in its switched-off position. On each of its ends, the slider (3) has an oblique surface (27, 32) which, in the quiescent position of the slider (3), partially engages under the associated drive device (23, 24). A spacer (2), which determines the distance between the contactors (21, 22), has a guide track and a leaf spring as a resetting device for the slider (3).
Patent EP-0457429-A2 (EP)
Title: Analog-to-digital converters
Inventor: RIBNER DAVID BYRD
IPC: H03M3/04
Filed: 1991-04-04
Abstract: An oversampling converter of a type using a plural-order, plural-stage (10,20,30) sigma-delta modulator, the output signal to the decimating filter (50) of which modulator has the quantization noise contribution of a number of its plurality of stages suppressed therein, uses single-bit quantization (15,25) in those stages (10,20) to help avoid problems of nonlinearity. Each other sigma-delta converter stage (30), the quantization noise of which appears in substantial amount in the converter output signal to the decimating filter, uses quantization (35) having multiple-bit resolution to help increase the resolution of the oversampling converter overall.
Patent EP-0453171-A2 (EP)
Inventor: PRICE RODERICK A
IPC: G06F13/42
Filed: 1991-04-10
Abstract: A method is provided for automatically ensuring synchronized operation of a sequential logic circuit which is implemented from a user net list containing the logic configuration data of a prototype circuit. The method includes providing a synchronizer flip-flop device or latch corresponding to every flip-flop device or latch in the user's original net list. The synchronizer flip-flop is connected to its corresponding original user flip-flop immediately upstream in the data path to the original flip-flop device. A predetermined amount of delay is added to the user's original clock and data signals. For each master clock in the user net list, a synchronizing clock signal generator derives a synchronizer clock which is delayed relative to the user's original clock. The synchronizing clock is applied to each control lead of each synchronizer flip-flop. The synchronizing clock always arrives at the synchronizer flip-flops before the user's clock and before the user's data. Moreover, it does not matter in what order the data and user's clock arrives. The method provides synchronized operation and eliminates hold time violations in implementing a circuit from a user net list, even in the presence of clock skew.
Patent EP-0461903-A2 (EP)
Inventor: SHIMOMURA YUKARI
IPC: G06T1/40
Filed: 1991-06-13
Abstract: Disclosed is an image processing apparatus having input device for inputting binary image data comprising a plurality of pixels which include a pixel of interest that is to be subjected to multivalued conversion, these plurality of pixels being contained in an area that is asymmetrical with respect to the position of the pixel of interest, and multivalued converting device for executing processing, by a neural network, to restore the inputted binary image data to multivalued image data of the pixel of interest, whereby multivalued image data is estimated from binarized image data. It is possible to reduce the number of pixels referred to in arithmetic operations performed in the neural network.
Patent EP-0469934-A2 (EP)
Inventor: SAITO RYUICHI
IPC: H01L21/8242
Filed: 1991-08-02
Abstract: A semiconductor memory device has a plurality of memory cells (351,352,353,354) in an array, into which the memory cells (351,352,353,354) data is writable, and which can subsequently be read. Each memory cell has a switching element (111) with one terminal connected to a bit line (120) of the array another terminal connected to at least one ferroelectric capacitor (112,113,114,115), and a control terminal connected to a word line (121). The cell may then be operated to detect the change in polarization of the ferroelectric capacitor when a voltage is applied which is not sufficient to cause a change of state of the ferroelectric capacitor. Alternatively, a ferroelectric capacitor (427) and a capacitor (428) other than a ferroelectric capacitor is connected to the switching element. In a further alternative, a plurality (112,113,114,115) of ferroelectric capacitors are connected to the switching element, so that different data are writable into each.
Patent EP-0512211-A2 (EP)
Inventor: STEFFEN KLAUS-DIETER DR
IPC: C07C233/15
Filed: 1992-02-29
Abstract: Malonic monoester monoanilides, and malonic acid monoanilides and bisanilides are formed by reaction of dialkyl malonates with the respective aniline in the presence of stoichiometric amounts relative to the aniline of an alkali metal alkoxide with the formation of, initially, alkali metal salts of monoester monoanilides or malonic acid bisanilides. By neutralisation, the free malonic monoester monoanilide or malonic acid bisanilide or, by hydrolysis, the malonic acid monoanilides can be prepared from these. Chlorine-substituted anilides of cyclopropyl-1,1-dicarboxylic acid or their monoesters are preferred.
Patent EP-0522597-A2 (EP)
Title: Methods of monitoring operating temperatures in disc drives to prevent thermal mistracking
Inventor: KRAUSE JAMES N
IPC: G11B5/596
Filed: 1986-11-19
Abstract: A thermal test track (-3) is provided outside the user-accessible area on the disc. A track complete of a known frequency is then written on either side of this thermal test track, preferably half the usual track separate distance away. To develop a thermal compensation constant, the transducer (10) is moved to the thermal test track with no compensation applied. This way, any thermally induced off-track error, which would affect seeks to user-accessible data tracks, will be reflected in the off-track from the nominal position of the thermal test track. The transducer is now moved in a series of defined increments (e.g. 5) smaller than normal track-to-track steps, or "micro-steps", away from the uncompensated position of the thermal track toward one of the tracks written with the known frequency. When the data on the written track to the side of the thermal test track is detected, a note is made of the number of micro-steps the transducer has been moved. The transducer (10) is then micro-stepped incrementally in the opposite direction until the data written on the other side of the thermal test track is detected. A simple comparison of these two micro-step counts will yield the existing thermal shift, which can be converted into a thermal compensation constant for the transducer positioning mechanism by means of a simple look-up table.
Patent EP-0529421-A2 (EP)
Inventor: MUELLER ANDREAS DIPL-ING
IPC: H04L27/26
Filed: 1992-08-13
Abstract: The invention relates to a method and an arrangement for determining, at the receiver end, the carrier frequency offset between transmitter and receiver which is needed as controlling variable for the automatic frequency control of the receiver. In this method, a test signal is regularly radiated at the transmitter end and analysed by an arrangement at the receiver end. A class of test signals is set up which are suitable for determining the carrier frequency offset and at the same time allow the channel step response to be estimated which allows the synchronisation achieved with the zero symbol to be improved. <IMAGE>