baber/WOPTO huggingface dataset:
Patent EP-0435607-A2 (EP)
Inventor: CLARKE DAVID JOHN
IPC: H04B1/59
Filed: 1990-12-21
Abstract: A transponder (20) includes a receiver (22,28) for receiving a radio interrogation signal. The transponder also includes a phase locked loop decoder (28,38,42,46,40,45,134,132) for deriving a reference signal from the received interrogation signal, and radio transmitter means (138,68,72) for transmitting a transponder reply signal. The phase locked loop has an output (136) which feeds the AC reference signal to the transmitter. The transmitter includes a frequency doubler ( 138) which generates a transmitter radio frequency at double the frequency of the reference signal. The transmitter radio frequency is therefore control led by the radio frequency of the interrogation signal. The phase locked loop includes a divide-by-N counter (38), where N is a predetermined integer parameter. The parameter N determines the derivation of the reference signal frequency from the interrogation signal frequency.
Patent EP-0381622-A2 (EP)
Title: Verfahren zur Herstellung von Dihalogenbutyraldehyden
Inventor: STEINER HEINZ
IPC: B01J23/44
Filed: 1990-01-23
Abstract: Dihalogenbutyraldehyde der Formel I <IMAGE> worin X und Y unabhängig voneinander -Cl oder -Br darstellen, sind bei hohen chemischen Umsätzen und hohen Selektivitäten durch katalytische Dehalogenierung mit Wasserstoff erhältlich, wenn man die Umsetzung mit entsprechenden α,α-Dihalogenbutyraldehyden in einem organischen aprotischen Lösungsmittel durchführt. Die Dihalogenbutyraldehyde sind Zwischenprodukte für die Herstellung von herbiziden Acylcyclohexandionen.
Patent EP-0447840-A2 (EP)
Inventor: NAKAGAWA YOSHIKAZU C O ROHM CO
IPC: H01L29/812
Filed: 1991-02-25
Abstract: A first semiconductor layer, a second semiconductor layer for source and drain regions, and a bottom SiN layer are successively formed. After the bottom SiN layer is selectively etched to make an opening, a SiON layer and a top SiN layer are formed thereon. A resist pattern having an opening that is closer to the source region than to the drain region is formed on the top SiN layer. The top SiN layer and SiON layer are etched with the resist pattern used as a mask, to expose the second semiconductor layer. The SiON layer is side-etched with hydrofluoric acid until exposing the gate-side portion of the source-side bottom SiN layer. Then, the second semiconductor layer is etched to expose the first semiconductor layer and to form the source and drain regions, where the gate-side edge of the source region is determined by that of the source-side bottom SiN layer and the gate-side edge of the drain region is determined by that of the drain-side SiON layer. Finally, a gate metal is vapor-deposited vertically on the first semiconductor layer with the opening of the top SiN layer used as a mask.
Patent EP-0452696-A2 (EP)
Inventor: BLUM HARALD DR
IPC: C08F8/32
Filed: 1991-03-22
Abstract: Aqueous solutions or dispersions of hydroxy-functional copolymers containing imide structural units, a process for their preparation by reacting the corresponding anhydride- and optionally carboxyl-functional copolymers with amino alcohols and optionally aminocarboxylic acids to form imides, and simultaneously and/or subsequently removing the water of reaction, neutralising the carboxyl groups which are then present, and dissolving or dispersing the product in water, and the use of the solutions or dispersions for the preparation of coating compositions, sealants or adhesives.
Patent EP-0472986-A2 (EP)
Title: Austragvorrichtung für Medien
Inventor: FUCHS KARL-HEINZ
IPC: B05B11/00
Filed: 1991-08-09
Abstract: Eine Austragvorrichtung (1) weist eine Speicher- und Anzeigeeinrichtung (20) auf, die einerseits durch die Austrag-Betätigung (5) geschaltet wird und außerdem durch unmittelbares manuelles Betätigen eines weiteren Betätigungsgliedes (23) nur in einer einzigen Richtung verstellt werden kann. Dadurch können Anzeigesymbole unterschiedlicher Skalen (40) so kenntlich gemacht werden, daß eine für viele Anwendungsfälle vorteilhafte Anzeige gegeben ist. <IMAGE>
Patent EP-0474031-A2 (EP)
Inventor: MATUKAWA TOSHIO NIPPON STUD WE
IPC: H02M7/48
Filed: 1991-08-21
Abstract: A inverter type power control unit for stud welding comprising a rectifier circuit (3) to convert three-phase AC power (2) to DC power, an inverter circuit (6) adapted to be supplied with said DC power and to convert this DC power to pulsating AC power (E3), and a welding transformer (8). Said welding transformer (8) is adapted to be supplied at the primary side with said pulsating AC power (E3) and to output, inturn, at the secondary side DC welding current through a converter and a DC reactor (11).
Patent EP-0488041-A2 (EP)
Inventor: YOKOTA YOSHIKO
IPC: A61K38/00
Filed: 1991-11-21
Abstract: Use of a compound of the formula
       
 or a pharmaceutically acceptable salt thereof for the preparation of a medicament for preventing or treating infectious diseases due to Cytomegalovirus.
Patent EP-0472253-A2 (EP)
Inventor: GENTER KARL ERNST
IPC: B23B5/10
Filed: 1991-08-21
Abstract: The invention relates to a procedure for finishing rolls for hot-pilger rolling on a computer numerically controlled roll lathe in which the groove form of the rolls, expressed in composite curves which can be determined mathematically, is stored in a computer in such a way that it can be fetched from storage and in which the groove surface, which can be described at each point by the coordinate system of the axes, can be machined by linear and rotational movements of the tool, designed as a turning tool. In order to obtain an increase in output in a procedure of this type by optimising the cutting geometry at the tool, it is proposed according to the invention that the geometric form of the groove be produced by horizontal movement (X-axis) of the tool transversely to the roll axis, by horizontal movement (Z-axis) of the tool parallel to the roll axis, and by rotation (C-axis) of the roll, and that at the same time an optimum setting of the tool-edge cutting angles at each supporting point perpendicularly to the tangential plane of the groove be produced by vertical movement (Y-axis) of the tool transversely to the roll axis during rotation (A-axis) of the tool about its longitudinal axis.
Patent EP-0448331-A2 (EP)
Inventor: WALDRON JOHN DESMOND
IPC: H01J49/32
Filed: 1991-03-18
Abstract: A mass spectrometry system includes a double-focusing magnetic sector mass spectrometer (7) and a time-of-flight spectrometer (9) arranged in parallel. The spectrometers share a common means (3) for exciting ions from a sample, and a common transfer optics system (5). An interleaved control system (11) for the two spectrometers (7,9), is arranged also to control a sampling handling arrangement (2) dependent on the output of the time-of-flight spectrometer (9), so as to enable the double-focusing magnetic sector mass spectrometer (7) to analyse a region of interest on a sample.
Patent EP-0467544-A2 (EP)
Inventor: HAINES STEVEN NICHOLAS MINTON
IPC: F02D41/36
Filed: 1991-06-27
Abstract: A control system for the fuel system of an engine which has electrically operated valves which control the quantity of fuel supplied to the combustion chambers of an engine includes a disablement controller (31) which in a test situation can operate to prevent the supply of fuel to the combustion chambers in turn. The system also includes a comparator (27) which observes the variation of an engine operating parameter e.g. fuel level during the test and trim circuit (23) which acts to modify the amount of fuel supplied to the individual combustion chambers on the basis of signals provided by the comparator, so that each combustion chamber contributes substantially equally to the power output of the engine.
Patent EP-0480619-A2 (EP)
Inventor: JARWALA NAJIMI T
IPC: G06F11/22
Filed: 1991-10-02
Abstract: A scheme is provided for efficient transfer of N separate L-bit segments of data (where N and L are integers) to or from an L-bit register ( 14) in a device under test (10) serially coupled with at least one other register in a device (10′) in a scan chain. To carry out such data transfer, a stream of N L-bit segments of interest is first concatenated to, and ahead of, a packet of L₁ filler bits, where L₁ is the cumulative number of register cells in the chain of devices (10′) upstream of the L-bit register (14) in the device under test (10). The stream of L₁ + NL bits is applied to the chain by shifting the first L₁ bits of the block of NL bits through the chain to flush the previous data stored in the registers upstream of the L-bit register in the device under test (10). The remaining bits in the stream of L₁ + NL bits are then shifted through the chain of devices ( 10 and 10′) until the L₁ filler bits have been shifted into the data registers of the devices (10′) upstream of the device under test. An alternate data transfer scheme is also provided.
Patent EP-0485140-A2 (EP)
Inventor: WYMAN STUART J
IPC: G03B27/58
Filed: 1991-11-04
Abstract: An opaque cartridge (10) for storing and dispensing light sensitive web materials (22) from a roll includes a box (18) defining a right angular sexahedron and made up of a top section (40) and a bottom section (42) hingedly connected to each other at an upper rear edge of the box (18) and providing a straight light-tight exit slot (20) at a lower front edge of the box (18), and a spool (12) consisting of a cylindrical hub (14) on which the web material (22) is wound and a pair of discoid end flanges (16) concentric with the hub (14). The hub (14) is rotatably mounted in openings provided in split end walls (30, 31) of the box (18). Light blocking and trapping flanges, baffles, plates, ledges, bars, recesses, and light steps are provided in conjunction with the hinge connection between the top and bottom box sections (40, 42), the mating connections between the top and bottom end walls (50, 60, 52, 62), and along the edge of the box providing the exit slot (20) to the end that no light can enter the chamber provided by the box (18) and spool (12) of the cartridge.
Patent EP-0462917-A2 (EP)
Inventor: BOND MILTON FREDRICK
IPC: G11B20/18
Filed: 1991-05-22
Abstract: A storage management mechanism resident on a storage controller (103) maintains parity records on the storage units (121-124) it services. The storage management mechanism includes a status map (106) indicating, for each data block (131-138), the location of the corresponding parity block (131,136), and the status of the data block. If a single storage unit fails, the system continues to operate, and the storage management mechanism is placed in a failure operating mode. While in failure operating mode, the storage management mechanism checks the status map before accessing data on the failed storage unit. If the data has not yet been reconstructed, storage management first reconstructs the data in that block of storage by successively reading and accumulating an Exclusive-OR (108) of the same blocks on all storage units in the parity group, including the parity block. The block of reconstructed data is stored in the location of the parity block, and the status map is updated to indicate that the block has been reconstructed. Once the data has been reconstructed, it is only necessary to read from or write to the former parity block directly. In the same manner, storage management will reconstruct a block of storage on the failed unit before writing to any corresponding block on a non-failed unit, if the block has not yet been reconstructed. In an alternate embodiment, spare areas of storage in the non-failing storage units are allocated to the reconstructed data. The total of these spare areas constitute a virtual spare storage unit. As data is reconstructed, it is placed in the virtual spare unit, and parity is maintained in the normal fashion.
Patent EP-0523413-A2 (EP)
Inventor: CHANDLER JASPER SCHELL
IPC: B41J2/44
Filed: 1992-06-24
Abstract: A beam scanning galvanometer is disclosed which oscillates a mirror in a non-resonant mode. The moving parts of the galvanometer are made with as small a moment of inertia as possible because the mirror is oscillated in a non-resonant mode. The galvanometer uses two sets of crossed leaf-springs to support the mirror instead of bearings which are usually used in non-resonant galvanometers. Each of the sets of leaf-springs is formed of a single strip of cold rolled stainless steel. The springs are embedded in uniquely shaped cavities in a permanent magnet that supports the mirror at a distance very close to an axis of rotation of the mirror. The mirror is specially shaped with beveled edges so that its moment of inertia is low and so that it can oscillate in very close proximity to a driving current coil which surrounds the mirror supporting magnet. A magnetic position sensor is used to detect an angular position of the mirror during operation of the galvanometer. A compensating system eliminates distorting magnetic field effects from a magnetic driving system from adversely influencing the magnetic position sensor. Signals from the magnetic position sensor are usable to provide accurate feedback information to a galvanometer driving system.
Patent EP-0495592-A2 (EP)
Inventor: TOMIYOSHI TOSHIO
IPC: H04N5/232
Filed: 1992-01-10
Abstract: A photovideo camera takes visual images formed on negative films and/or positive films to obtain video signals corresponding to the visual images. The camera unit of the photovideo camera can be focused after determining a desired angle of view by zooming, without changing the desired angle of view. In focusing the lens unit, only the master lens of the focusing lens system of the lens unit is moved.
Patent EP-0498542-A2 (EP)
Inventor: PLUNK GERALD W
IPC: G06T15/10
Filed: 1992-01-22
Abstract: A method for converting forward looking video or motion picture imagery into a downlooking database suitable for use in an image generation system to generate realtime perspective images for simulation purposes. A digital video camera photographs a sequence of forward looking frames along a course including several known ground control points. Digital data from the digital video camera is read into a computer. The initial position and the position of ground control points is read into the computer. A Kalman filter technique provides continuous estimates of exact camera location in x, y, z coordinates, and in roll, pitch and yaw orientation. A correlation filter determines corresponding pixels in adjacent frames. Range from the camera to the pixel surfaces is calculated to determine the x, y and z position thereof. A modified mathematical stereophotogrammetry technique is used. Radiometric data and elevation data is extracted from the lower portion of the frame for each pixel. After the radiometric and elevation data have been established for each pixel in each frame, the imagery is warped onto the elevation data to generate a top down view. The database is then ready for use in an image generation system.
Patent EP-0514079-A2 (EP)
Inventor: HUANG JOHN C
IPC: H01L21/338
Filed: 1992-05-07
Abstract: A high electron mobility transistor (50) includes a pair of charge screen layers (58b,64) disposed over a first one of active and charge donor layers (59) of the high electron mobility transistor (50). The two screen layers (58b,64) are patterned to provide a double recessed channel. A first charge screen layer (58b) disposed adjacent to the charge donor layer (58,59) is etched to provide a recess having a first length between source and drain electrodes (68a,68b), whereas a second charge screen layer (64) disposed over the first aforementioned charge screen layer (58b) and a portion of the aforementioned first charge screen layer (58b) are etched to provide a second, substantially longer length between source and drain electrodes (68a,68b). The gate electrode (70) is provided in the first aforementioned recess in Schottky barrier contact with the charge donor layer (58,59).
Patent EP-0518538-A2 (EP)
Inventor: RABIN PAUL ROBERT
IPC: G05D7/06
Filed: 1992-06-01
Abstract: A control system for an electric motor (11) driving a fluid moving device, such as the air fan in a powered respirator (Fig 1), senses the speed of the motor by the back EMF which it produces (V EMF ) and senses the running current of the motor by the voltage drop (V R ) across a fixed series resistor (R). From these parameters the prevailing rate of flow from the fan can be calculated in a microprocessor (12) and compared to a specified value. The resultant error signal is used to modulate the widths of power pulses supplied (16) to the motor such that the fan is controlled to produce a substantially constant rate of flow notwithstanding variations of flow resistance caused e.g. by progressive blockage of associated filters.
Patent EP-0543625-A2 (EP)
Inventor: GIZAW DANIEL
IPC: H02K21/16
Filed: 1992-11-18
Abstract: An improved salient pole configuration for a dynamoelectric machine is disclosed, particularly for a permanent magnet brushless DC motor wherein cogging torque is a problem. One or more apertures (24) or "reluctance holes" are disposed within the head portion (32) of the salient poles (22) in the stator (16) such that the reluctance holes are substantially adjacent but not adjoining the pole face (34), thereby forming a bridge between the aperture (24) and the pole face (34). The reluctance hole bridge provides a substantially constant air gap flux density to reduce cogging, while at the same time, provides a low reluctance shunt path for the armature reaction flux around the permanent magnet (18) to improve the demagnetization margin. The efficiency of the machine (10) is also improved.
Patent EP-0581145-A2 (EP)
Inventor: WELLENHOFER HERBERT DR
IPC: D01D5/092
Filed: 1993-07-16
Abstract: A process is described for producing fibres from polymers which give off troublesome gases and/or vapours during spinning, comprising the steps of:   a) extruding the molten polymer through a spinneret (dies) into a closed spinning shaft (chimney, cell), b) quenching the resulting filaments in the spinning shaft with a gas,   c) withdrawing the resulting filaments from the spinning shaft, d) conducting the quench gas away from the spinning shaft and introducing it into a gas purification system and e) purifying the used quench gas by contact with an adsorbent for said troublesome gases and/or vapours.   It is possible by the present invention to keep hazardous gases occurring during the spinning of polymers away from the surroundings and to dispose of them. Suitable polymers are in particular polyphenylene sulphides. The invention further relates to an adapted apparatus for carrying out the process according to the invention. The apparatus comprises an extruder (1), a spinning pump (2) and a spin pack (3) which contains a filter (4) and spinnerets (5). The spinnerets (5) open out directly into a closed spinning shaft (6) which is provided with at least one feedline (7) and one discharge line (8) for the quench gas. In the representation of Figure 1, two discharge lines (8) for the quench gas are depicted at the top and bottom end of the spinning shaft. In addition, in this Figure 1, an auxiliary extraction line (12) is furnished for the quench gas which is mounted at the bottom end of the spinning shaft next to the outlet orifice for the filaments. In the representation of Figure 1, all discharge lines for the quench gas are equipped with a gas purification system (9). <IMAGE>
Patent EP-0591635-A2 (EP)
Inventor: KLANCNIK MICHAEL
IPC: G06K7/10
Filed: 1993-07-19
Abstract: A system for decoding a bar code symbol (1600) receives a signal representative of the symbol and searches the signal in one dimension to locate two adjacent critical points corresponding to an element (1602, 1604, ... 1612) of the symbol. The system also computes a value representative of the signal energy between the two critical points and determines the width of the element in accordance with the value. 
     A bar code symbol decoding system receives a signal (1000) representative of a bar code symbol (1002) having a plurality of characters, one of which is a checksum character. The system determines a first choice for each of the characters and a second choice for at least one of the chracters from the signal. The system performs checksum analysis in accordance with the first choice for each of the chracters. If that checksum analysis is not satisfied, then the system performs checksum analysis using the second choice.
Patent EP-0587033-A2 (EP)
Inventor: YODA EIJI C O NIPPON OIL CO LT
IPC: C09D5/44
Filed: 1993-09-01
Abstract: A method for producing a color filter involves (A) forming a photosensitive coating film on at least a transparent electrically conductive layer of a substrate having both the transparent electrically conductive layer and a light-intercepting layer on its outermost surface, and exposing the photosensitive coating film to light in a first irradiation amount through a mask having a predetermined pattern of a certain light transmittance and at least once displacing the mask to another position on the photosensitive coating film and exposing the photosensitive coating film to light in a second irradiation amount different from the first irradiation amount through the mask; and (B) developing and removing a photosensitive coating film portion exposed to light in one of smallest and largest irradiation amounts for exposing the transparent electrically conductive layer and electrodepositing a colored coating on the exposed electrically conductive layer for forming a colored layer thereon, operation of developing and removing the photosensitive coating film and electrodepositing the colored coating being sequentially repeated for the respective irradiation amounts where the sequence of repetition is selected from the group consisting of increasing irradiation amount and decreasing irradiation amount to form different colored layers, respectively.
Patent EP-0587113-A2 (EP)
Inventor: SULLIVAN KEVIN
IPC: G06K7/10
Filed: 1993-09-07
Abstract: An improved lighting apparatus for providing uniform illumination to the surface of an object, primarily surfaces (14) with data in code or alphanumeric format, includes an area diffused light source (50) mounted interior to a light-shielding canopy (20). The area diffused light source (50) includes at least one electroluminiscent panel (52). The light shielding canopy (20) blocks out external sources of light, and has an interior surface that reflects light emitted by the electroluminiscent panel (52). In operation, the light-shielding canopy completely covers the surface of an object while diffuse, uniform light emanating directly from the elctroluminiscent panel (52) or reflected off the interior surface of the light-shielding canopy (20) illuminates the surface of the object.
Patent EP-0600303-A2 (EP)
Inventor: HAYASHI SHIGENORI
IPC: H01L21/316
Filed: 1993-11-18
Abstract: A method whereby perovskite type oxide dielectric thin films with ABO₃ structure are able to be formed with such features as good stability, uniformity, reproducibility, or the like, and, on top of that, with high through-put by having a deposition process, wherein the thin films are deposited on a substrate, and a non-deposition process, wherein no deposition of the thin films takes place, repeated alternatingly while the substrate temperature being kept near the temperature at which perovskite type oxide dielectric thin films are formed. 
     Also, by employing (i) a processing method wherein a decomposing excitation of a reactive gas due to plasma takes place on or near the deposition surface in a gaseous atmosphere comprising a gas that reacts with the elements composing the thin films, (ii) a processing method wherein an oxidation reaction takes place on the deposition surface in a gaseous atmospher comprising at least ozone (O₃), and (iii) a processing method wherein light of short wave length is irradiated on the deposition surface in a gaseous atmos phere comprising at least reactive elements in said non-deposition process, the oxygen concentration in the deposited thin films is adjusted and dielectric thin films of good quality and an extremely low defect content are realized.