baber/WOPTO huggingface dataset:
Patent EP-0360615-A2 (EP)
Title: Embedment of data in a video signal
Inventor: O'GRADY WILLIAM J
IPC: H04N9/74
Filed: 1989-09-22
Abstract: Data is embedded in a video signal by adding a low level waveform to the video signal, the low level waveform having a level below the noise level of the video signal and corresponding to the data. To detect data embedded in the video signal the video signal is correlated with the low level waveform corresponding to the data to produce a correlation coefficient. A high correlation coefficient indicates the presence of the low level waveform which is converted into the data. The low level waveform extends over many video lines such that it does not occur at or near the same position within a video frame for many video frames to avoid fixed-pattern noise anomalies that may be detected by a viewer of the television picture.
Patent EP-0373853-A2 (EP)
Inventor: HUYNH LUONG THIEN
IPC: H03F3/30
Filed: 1989-12-11
Abstract: An amplifier output stage for a loudspeaker includes current sourcing (20) and sinking (70) sections arranged in push-pull and a cascode stage (50) for driving the current section and biasing both the sinking and sourcing sections.
Patent EP-0373116-A2 (EP)
Inventor: TIEKE BERND DR
IPC: C08K3/10
Filed: 1989-11-28
Abstract: Ionenleitende Zusammensetzungen enthaltend (A) ein Polyester-Polyether-Copolymer hergestellt aus (1.1) einem α,ω-dihydroxyterminierten Poly(oxyalkylen), (1.2) einer aromatischen Dicarbonsäure oder deren esterbildenden Derivaten und (1.3) einem aromatischen Diol oder einer aromatischen Hydroxycarbonsäure oder deren esterbildenden Derivaten oder einem Gemisch dieser Verbindungen oder hergestellt aus, (2.1) einem α,ω-dicarboxyterminierten Poly(oxyalkylen) oder dessen esterbildenden Derivaten, (2.2) einem aromatischen Diol und (2.3) einer aromatischen Dicarbonsäure, einer aromatischen Hydroxycarbonsäure oder deren esterbildenden Derivaten oder einem Gemisch dieser Verbindungen und (B) ein Salz eines ein- bis dreiwertigen Metallions der Gruppen Ia bis IVa, Ib bis VIIb oder VIII, eignen sich insbesondere für die Herstellung von antistatischen Folien, antistatisch wirksamen Beschichtungen oder als Feststoffelektrolyte für Batterien. Die Polyester-Polyether-Copolymere (A) sind zum Teil neu und die neuen Copolymere werden ebenfalls beansprucht.
Patent EP-0383126-A2 (EP)
Inventor: OSTER GERALD
IPC: C12Q1/6816
Filed: 1990-02-03
Abstract: A diagnostic test composition for detecting and measuring an analyte possessing biologic activity comprising
     (a) a photocatalyst system capable of converting a monomer to a polymer upon exposure to light, the monomer capable of undergoing addition polymerization, the photocatalyst system comprising one or more chemical moieties, with
   (1) the analyte comprising at least one such moiety or generating at least one such moiety or   (2) in the case that the analyte lacks a photocatalyst property, the analyte is linked by a specific ligand to at least one such moiety or is linked by the specific ligand to a generator of at least one such moiety and       (b) at least one monomer capable of undergoing addition polymerization.
Patent EP-0393317-A2 (EP)
Inventor: CHANG LEROY L G
IPC: G02F1/017
Filed: 1990-02-08
Abstract: This invention relates to resonant tunneling semi­conductor devices useful for transport functions such as switching or amplification, and also for electro­optical conversions. In the structure of these devices, a central potential well (10) is formed of an opposite conductivity type of semiconductor material to two semiconductor layers (12) outside resonant tunneling barriers (14) on each side of the central potential well (10), such that electrons in the well (10) can tunnel to and from the outside semiconductor layers (12). An alloyed reach-through contact formed of the same conductivity type semiconductor material as the central potential well (10) is extending to the central potential well (10). The central potential well (10) serves as the base of a three terminal device in transport applications, and as the light responsive portion for electro-optical applications. In one disclosed embodiment, the device is constructed in five layers of the most commonly used gallium-­aluminum-arsenide compounds, an n GaAlAs substrate, undoped GaAlAs, p GaAlAs, undoped GaAlAs, and n GaAlAs.
Patent EP-0384233-A2 (EP)
Inventor: LAUSBERG DIETRICH DR
IPC: C08L75/00
Filed: 1990-02-09
Abstract: The thermoplastic moulding composition comprises  A: from 20 to 90 % by weight of a thermoplastic polyurethane, B: from 1 to 40 % by weight of a rubber-elastic graft copolymer made from b1: from 50 to 90 % by weight of a graft base comprising a rubber-elastic polymer having a glass transition temperature of below -20 DEG C, based on butadiene or C2-C10-acrylate, and, if desired, a crosslinking agent, and b2: from 10 to 50 % by weight of a graft comprising styrene and acrylonitrile in a ratio of from 85:15 to 60:40, and/or styrene and/or methyl methacrylate, and  C: from 5 to 75 % by weight of a copolymer made from  c1: from 55 to 90 % by weight of  alpha -methylstyrene and c2: from 10 to 45 % by weight of acrylonitrile or methacrylonitrile or a mixture thereof, and D: up to 50 % by weight of reinforcing fillers.
Patent EP-0388980-A2 (EP)
Inventor: KITAHARA NAOTO
IPC: H03H7/075
Filed: 1990-03-23
Abstract: There is provided a monolithic structure of an LC circuit incorporated component comprising at least one capacitor formed from internal electrodes in layered form in a ceramic monolithic structure, at least one inductor formed from internal conductive structure in coil form in said monolithic structure, internal connecting leads for connenting said capacitor(s) and inductor(s) to form said circuit, formed in said structure, and terminals for the circuit, formed at the surface(s) of the component.
Patent EP-0397102-A2 (EP)
Inventor: JUZSWIK DAVID L
IPC: H03K17/082
Filed: 1990-05-08
Abstract: A power delivery circuit for supplying load current to a load includes a current switch connected on the high potential side of a load. In order to detect a current condition, such as an over-current condition in the load, a current sensing and detection circuit preferably cooperates with the current switch wherein such switch comprises a multicellular device with a plurality of terminals. Such terminals include a first main current terminal connected to a source of high potential, a second main current terminal connecting a majority of device cells to the load, a first auxiliary terminal connected at one end to a minority of device cells so as to provide a current generally proportional to the main device current, and a second auxiliary terminal connected at one end to a majority of device cells. The current detection circuit preferably comprises one branch connected between the first auxiliary terminal and ground and including, in serial circuit, a current-to-voltage converting resistor providing a voltage at one end approximately proportional to the main device current and a bias signal-controlled transimpedance device, and another branch connected between the second auxiliary terminal and ground and providing a bias signal for the transimpedance device in the first branch. In another embodiment, the first branch includes at least two transistors and a resistor serially connected between a current sense terminal of the MOSFET and a reference potential. The second branch also includes at least   two serially connected transistors connected between a terminal of the MOSFET and the reference potential. The transistors are cross-connected between branches and provide an inverted current mirror and a current mirror. Fifth and sixth transistors may also be included as part of the current sensing circuit.
Patent EP-0402645-A2 (EP)
Inventor: ANDERSSON PAER
IPC: B29C45/26
Filed: 1990-05-16
Abstract: A method for injection-moulding a thermoplastic lid onto the edge of a cardboard tube is described, the plasticised polymer being injected into the mould cavity (16) formed by inner (7) and outer mould parts (8, 8') and the mould parts (7, 8, 8') being pressed with force against each other. In order to be able to produce thinner plastic parts with greater dimensional accuracy, as far as possible in less time and with more simple tools, it is proposed that the mould cavity (16) is kept at a large volume in a first stage, during which the plasticised polymer fills the mould cavity (16) at least partially (20) under slight pressure, and that in a second stage the mould cavity (16) is brought to a smaller volume than that of the first stage, the clamping force for pressing together the inner (7) and outer mould parts (8, 8') being increased in the second stage in comparison with that in the first stage. <IMAGE>
Patent EP-0406673-A2 (EP)
Inventor: DAMMANN PETER
IPC: D02G1/02
Filed: 1990-06-27
Abstract: In a false-crease crimping machine, the curved heating rail is designed with a high curvature and a relatively short length. The ratio of radius to length and dimensions for the radius and length are given for different titre ranges of a synthetic yarn to be crimped. <IMAGE>
Patent EP-0418536-A2 (EP)
Inventor: HOLGER KOOS
IPC: B60Q1/28
Filed: 1990-08-09
Abstract: The invention shows the driver's cabin of a lorry with the front window (3) and side windows (4) which are connected by a strut (2). In the lower area of the strut (2), a blinker (1) is arranged flush with said strut. <IMAGE>
Patent EP-0418932-A2 (EP)
Inventor: MIYAZAKI TAKASHI
IPC: G06F11/22
Filed: 1990-09-24
Abstract: A microcomputer includes a plurality of external terminals, an internal bus, a central processing unit coupled to the internal bus, an input/output interface connected to the external terminals and the internal bus for controlling data transfer between the microcomputer and an external device under control of the central processing unit, an interrupt request source connected to the internal bus, and an interrupt controller coupled to the internal bus and receiving an interrupt request signal from the interrupt request source so as to generate an interrupt processing request signal to the central processing unit. The interrupt controller includes a switch circuit connected to receive a vector code output enable signal and an interrupt enable signal from the central processing unit and corresponding signals from the internal bus. The switch circuit is controlled by a test mode signal supplied through one of the external terminals, so as to output the vector code output enable signal and the interrupt enable signal when the test mode signal is inactive and to output the corresponding signals from the internal bus as the vector code output enable signal and the interrupt enable signal when the test mode signal is active.
Patent EP-0423653-A2 (EP)
Inventor: NISHIO KAZUTAKA
IPC: G06T15/50
Filed: 1990-10-12
Abstract: The present invention relates to a method and an apparatus for compensating for color in color images for use in an image processing field which is employed for three dimension computer graphics and so on. Conven­tionally, a color compensation method for color images for use in this field has not made any compensation between a lightness of a texture itself representing a pattern on the surface of an object and an intensity of the surface of the object derived by an intensity calculation when an image is generated, so that the generated image has been extremely unnatural. The present invention performs a color compensation for color images by making a luminance of texture data coincident with an intensity derived by an intensity calculation. Also, a lightness compensation is performed for a color image according to a display scene. From measuring results of color changes of plural colors in a uniform color space, a color change of arbitrary texture data under a chromatic color light source is represented and compensated for.
Patent EP-0438677-A2 (EP)
Inventor: AOKI KENJI C O SEIKO INSTRUMEN
IPC: H01L21/225
Filed: 1990-12-05
Abstract: The impurity doping apparatus comprises a vacuum chamber, a heater for heating a silicon substrate placed in the chamber, and a gas supply source for supplying a diborane gas containing an impurity component of boron to the chamber. A regulating value is disposed between the chamber and the gas supply source to regulate gas flow rate. A CPU is provided to control the heater and the regulating value according to a given sequence of first, second and third procedures so as to dope the boron into the silicon substrate. The CPU operates according to the first procedure to effect heating of the silicon substrate in the vacuum chamber to activate a surface of the silicon substrate. The CPU operates according to the second procedure to effect charging of the diborane gas into the vacuum chamber while heating the silicon substrate to deposit a boron adsorption film on the activated surface. The CPU operates according to the third procedure to effect annealing of the silicon substrate to diffuse the boron from the adsorption film into the bulk of the silicon substrate.
Patent EP-0437726-A2 (EP)
Inventor: HINTZEN ULLRICH
IPC: B22D11/10
Filed: 1990-12-08
Abstract: A closure device for a molten metal vessel is to be configured in such a way that solidified melt zones are carried away through the throughflow channel (7) during the initial casting process. For this purpose, the cross-section of flow of the throughflow channel (7) widens from an inlet opening (8) in the melt to an outlet opening (12). 
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Patent EP-0396166-A2 (EP)
Inventor: VAN DER LELY CORNELIS
IPC: A01B33/08
Filed: 1990-04-17
Abstract: A soil tilling machine, such as a rotary plough, is provided with a frame and a power-driven rotor (9, 57). The axis of rotation ( a ) thereof extends across to the direction of operative travel (A). The rotor is arranged at an angle with a line transverse to the direction of operative travel (A). To employ different soil working members, depending on the types of soil and the working circumstances, the machine comprises means for exchanging the rotor (9) for another rotor (57).
Patent EP-0404261-A2 (EP)
Inventor: NELISSEN LAURENTIUS NICOLAAS I
IPC: C08L25/04
Filed: 1990-06-19
Abstract: Poly(alkenyl substituted aromatic) and elastomer containing polymer compositions, obtainable by a process comprising:
     (a) conversion of polyphenylene ether or a structurally related polymer thereof with an acid halide, an acid anhydride or ketene, in at least one alkenyl substituted aromatic monomer;   (b) dissolution of at least one EPDM rubber and an optionally partially hydrogenated diblock copolymer A-B, optionally mixed with minor amounts of triblock copolymers ABA, wherein A represents a poly(alkenyl aromatic) block and B represents an optionally, partially hydrogenated poly conjugated diene block;   (c) prepolymerization of the obtained mixture until a polymerization degree of from 5 to 20%;   (d) suspending the prepolymerized mass into an aqueous medium;   (e) polymerization by thermal initiation or by initiation by means of at least one free radical initiator, optionally in the presence of an expanding agent;    and a process for the preparation of such polymer compositions.
Patent EP-0378448-A2 (EP)
Inventor: WALOWIT ERIC
IPC: H04N1/036
Filed: 1990-01-15
Abstract: A method is described for converting input color data (eg RGB) to output color (eg CMY). Input color data is collected from an output device and converted to predetermined color space data. The color space data is converted to output color data and outputted to an output device.
Patent EP-0380279-A2 (EP)
Inventor: RITT PETER MICHAEL
IPC: G03G13/22
Filed: 1990-01-22
Abstract: A method of electrophotographically manufacturing a luminescent screen assembly (22) on a substrate (18) of a CRT (10) includes the steps of coating the substrate with a conductive layer (32) and overcoating the conductive layer with a photoconductive layer (34), establishing an electrostatic charge on the photoconductive layer, and exposing selected areas of the photoconductive layer to visible light to affect the charge thereon. Then, the selected areas of the photoconductive layer are developed with triboelectrically charged, dry-powdered, surface-treated screen structure materials. The improved method increases the adherence of the surface-treated materials to the photoconductive layer by contacting the surface-treated materials with a solvent to render the photoconductive layer and the materials tacky. The dried screen is fixed with a plurality of coatings of an aqueous alcohol mixture of dichromated polyvinyl alcohol or potassium silicate and then filmed, aluminized and baked to form the screen assembly.
Patent EP-0390385-A2 (EP)
Title: Acrylic composite materials
Inventor: DUNCAN HELEN
IPC: C08K3/22
Filed: 1990-03-16
Abstract: A fluid, filled, curable composition comprising an organic liquid which is polymerisable to form a solid polymer without the formation of any elimination products and from 20 to 70% by volume of alumina trihydrate filler characterised in that filler has a median particle size of between 5 and 30 microns, and preferably between 6 and 20 microns, and has an average aspect ratio of less than 2.5:1, preferably less than 2.0:1, and desirably less than 1.8:1. 
     The composition when cured provides shaped articles having improved mechanical properties and when used as a dispersion of low viscosity reduces the tendency for the composition to show colour variations through the thickness of the sheet as exhibited using alumina trihydrate fillers of high aspect ratio.
Patent EP-0395273-A2 (EP)
Inventor: SAMAD RAPHAEL
IPC: H04N7/01
Filed: 1990-04-11
Abstract: In, for example, a motion compensated video standards converter (Figure 1) blocks in a first field or frame of a video signal are each compared with a plurality of blocks in the next succeeding field or frame of the video signal for deriving motion vectors representing the motion of the content of respective blocks between the first field or frame and the next field or frame, motion vectors are allocated to each pixel of each field or frame, the allocated motion vectors are checked to identify spurious motion vectors by comparing the allocated motion vectors with motion vectors allocated to adjacent pixels, and spurious motion vectors so identified are replaced (84 to 89) by motion vectors allocated to adjacent pixels.
Patent EP-0413446-A2 (EP)
Inventor: STRICKLAND ELIZABETH
IPC: A43D119/00
Filed: 1990-07-24
Abstract: The workpiece feeding means comprises a conventional hammer-and-anvil arrangement driven at a speed under operator control (T) and with variable feed length for "normal", "snipping" and "pleating" operations. For each workpiece shape a set of settings of these three feed lengths (SS1, SS2 and SS3) is stored in computer memory under an identification (SS4) by which such set can subsequently be accessed. The set may also include other style-sensitive settings, e.g. rate of adhesive flow (SS9), delay in supplying adhesive (SS5), "density" of snipping (SS6), for subsequent recall with the feed length settings. Provision is also made for certain operator-sensitive settings, e.g. maximum feed speed for the particular operator (SS7) as a proportion of the overall maximum for the machine; this enables the operator control (T) to be fully used over its whole range and thus to maintain the sensitivity of control it provides regardless of the maximum speed set. Provision is also made for certain adhesive-sensitive settings, e.g. creaser foot temperature (SS8). The operator- and adhesive-sensitive settings do not form part of the set of settings for a particular workpiece.
Patent EP-0436282-A2 (EP)
Inventor: COLE HERBERT STANLEY JR
IPC: C23C14/58
Filed: 1990-11-01
Abstract: Selective electrolytic deposition on either conductive or non-conductive bodies is provided by forming a layer of a metal which forms a plating-preventing compound on the surface of the body to be plated, and selectively interdiffusing a plating-enabling metal into the surface of that compound-forming metal in those locations where plating is desired and electroplating the body. The interdiffusion may be done before or after the plating-preventing compound has formed on the surface of the compound-forming layer. During the electroplating, the electroplating metal deposits only in those locations where the plating-enabling metal has interdiffused with the compound-forming metal. At the end of the process, the compound-forming metal may be removed in those locations where it is not covered by the electroplated metal to provide a plurality of separate plated conductors.
Patent EP-0430570-A2 (EP)
Inventor: HAHNE ELLEN L
IPC: H04L12/56
Filed: 1990-11-21
Abstract: A method of controlling congestion in a virtual circuit packet network. An initial packet buffer is assigned to each virtual circuit at each node into which incoming packets are stored and later removed for forward routing. If a larger buffer is desired for a virtual circuit to service a larger amount of data, then additional buffer space is dynamically allocated selectively to the virtual circuit on demand if each node has sufficient unallocated buffer space to fill the request. In one embodiment, the criterion for dynamic allocation is based on the amount of data buffered at the data source. In alternative embodiments, the criteria for dynamic allocation may be further based on the amount of data buffered at each node for a virtual circuit and the total amount of free buffer space at each node of a virtual circuit. Signaling protocols are disclosed whereby data sources and virtual circuit nodes maintain consistent information describing the buffer allocations at all times.
Patent EP-0438949-A2 (EP)
Inventor: GRONDIN HENRI
IPC: C09K23/52
Filed: 1990-12-14
Abstract: Copolymers stabilising aqueous suspensions of sodium silicoaluminates or zeolites which are characterised in that they are crosslinked, soluble in water, at least at pH values of 7 or above, and consist essentially:   (a) of at least one noncrosslinking acrylic monomer containing a carboxylic functional group, chosen from acrylic and methacrylic acids, (b) optionally, of at least one noncrosslinking acrylic monomer chosen from the esters, amides and/or nitriles of acrylic and/or methacrylic acid. (c) of at least one crosslinking monomer containing at least two acrylic and/or allyl and/or vinyl double bonds, (d) optionally, of at least one at least difunctional crosslinking monomer containing not more than one double bond and at least one other chemical functional group reactive towards the other monomers containing acidic, amide or nitrile functional groups of the types (a) and (b), the cumulative quantity of the crosslinking monomers (c) and (d) constituting from 1 to 5 %, preferably from 1 to 4 % by weight relative to the total mass of the monomers.   These copolymers are used in a proportion of not more than 0.4 % by weight relative to the solids content in relation to the total mass of the mixture to be treated.
Patent EP-0394178-A2 (EP)
Inventor: NORBY CRAIG JOEL
IPC: D06F37/30
Filed: 1990-04-05
Abstract: A drive system for a household appliance (10) incorporates an electric motor (32). A control panel (20) allows the user of the appliance to select from among various performance options which the appliance is able to perform. A microprocessor (104), functioning as a first control unit, is responsive to the selections and to various appliance sensors monitoring operational status of the appliance to control the operation of various components within the appliance by which the selected options are performed. An AC-DC converter and inverter (106) supply electrical power to the motor (32). A second control unit (122), operating at a relatively faster rate of speed than the microprocessor, controls the supplying of power to the electric motor to achieve proper operation thereof.