baber/WOPTO huggingface dataset:
Patent EP-0347833-A2 (EP)
Inventor: EUL HERMANN-JOSEF DIPL ING
IPC: H03D7/00
Filed: 1989-06-20
Abstract: The invention relates to an arrangement and a method for implementing a multistage single-sideband frequency converter. For this purpose, switchable phase shifters are cascaded and switched successively in time in all possible combinations in a suitable order. 
<??>Particularly suitable switching sequences of the phase switches are distinguished by the fact that it is possible to gate out the transient events in the low-frequency range of the device. 
<??>Such a single-sideband frequency converter can be used, for example, in a homodyne network analyser so that the mixing process generates an intermediate-frequency signal with a frequency which differs from zero and which carries the amplitudes and phase information of the test signal. 
<??>Since the signals present at the mixer are derived from one and the same source, the frequency of the low-frequency signal is accurately determined by the repetition frequency of the phase switching states. This can be easily generated with crystal accuracy by electronic means. Accordingly, the mixer output signal is subject to virtually no frequency fluctuations which allows an immediate conversion into the baseband where it can be filtered in a very narrow band for the same reason. The latter leads to a good signal/noise ratio which, in addition, is also advantageously influenced by the conversion losses occurring only once.
Patent EP-0353632-A2 (EP)
Inventor: VAGER ZEEV
IPC: H01J29/46
Filed: 1989-07-27
Abstract: An electron multiplier including a multi-layer arrangement of material which provides secondary electron emissions when impinged upon by electrons and apparatus for applying an electric field across the material. A cathode ray tube, and devices incorporating a cathode ray tube, such as televisions and oscilloscopes are also provided in accordance with the invention.
Patent EP-0358224-A2 (EP)
Inventor: SEKIDO KAZUNORI
IPC: G06F3/08
Filed: 1989-09-08
Abstract: A semiconductor disk device useful in a transaction processing system, capable of reducing the turnaround time for the transaction. The semiconductor disk device includes device (31, 33, 35, 37) for generating a journal information when new data to be stored in the semiconductor disk device are written in particular addresses in the semiconductor memory (19), the journal information including the new data and old data which have originally been stored in these particular addresses in the semiconductor memory (18) before the new data are written.
Patent EP-0368046-A2 (EP)
Inventor: KELLER HEINRICH
IPC: E01B27/00
Filed: 1989-10-19
Abstract: Railway transport wagon having a container delimited laterally by side walls (1), and having a conveyor-belt unit (3) running continuously in the region of the container bottom, conveying obliquely upwards in the longitudinal direction of the wagon from the loading end, and projecting above the buffers at the delivery end, the clear wall height (h) of the side walls (1) of the container being essentially identical over the entire length of the wagon. According to the invention, it is provided in such a transport wagon for the height difference ( DELTA H) of the conveying device (3, 8, 9) between loading end (4) and delivery end (5) to be essentially identical to the clear wall height (h) of the side walls (1) of the container, or to be larger than this wall height (h). <IMAGE>
Patent EP-0379660-A2 (EP)
Inventor: VON ALLWORDEN WILHELM
IPC: A01B73/04
Filed: 1989-11-14
Abstract: A soil-working machine has a carrier device, to which a plurality of soil-working assemblies arranged next to one another are attached. Each soil-working assembly works the interspace between two adjacent plant rows. So that the working width of the soil-working machine can be varied, the carrier device is divided into a main carrier and at least one auxiliary carrier which can be coupled laterally to the main carrier. A soil-working assembly arranged in the coupling region between the main carrier and auxiliary carrier is formed by two soil- working units which each operate on one side and of which a first is attached to the main carrier and a second to the auxiliary carrier. At the same time, the auxiliary carrier is mounted on the main carrier pivotably and/or dismountably and has as outermost soil-working assembly a soil-working unit operating inwards on one side. In this way, the working width of the soil-working machine can be varied, without substantial conversion work being necessary. <IMAGE>
Patent EP-0339815-A2 (EP)
Inventor: KRIEF ALAIN
IPC: C07C45/00
Filed: 1989-04-06
Abstract: A process for the preparation of  cis -­cyclopropane carboxylic acids which comprises the step of treating a derivative of a 4-­hydroxy-2,2-dimethyl bicyclo[3,1,0]hexan-2-one with a source of hydroxide ions.
Patent EP-0337692-A2 (EP)
Inventor: NAGAI AISAKU C O KUREHA KOGAKU
IPC: H01L37/02
Filed: 1989-04-10
Abstract: A pyroelectric infrared sensor includes a package (1) having a light-receiving window (26) and at least two dual pyroelectric elements (24,25) arranged in the package, each of the dual pyroelectric elements (24,25) having first and second unit pyroelectric elements (20a,20b;21a,21b), the first and second unit pyroelectric elements being connected in series or parallel with each other so as to have opposite polarities. The first and second light-receiving electrodes (14a,14b;15a,15b) and the first and second back electrodes (16a,16b;17a,17b) are formed such that an effective light-receiving electrode area of the first unit pyroelectric element (20b;21a) opposing a central portion of the light-receiving window (26) is smaller than an effective light-receiving electrode area of the second unit pyroelectric element (20a;21b) opposing a peripheral portion of the light-receiving window (26). A difference between secondary infrared rays incident on the first and second unit pyroelectric elements which is caused by a difference between angles of visibility of these elements with respect to the light-receiving window can be compensated. This invention also relates to a method of manufacturing the dual pyroelectric element.
Patent EP-0359378-A2 (EP)
Inventor: WU CHARLES LAISAU
IPC: G05B19/416
Filed: 1989-07-26
Abstract: A method of using a mathematical model to adaptively control surface roughness when machining a series of workpieces or segments by: (a) linearizing a geometrical surface roughness model; (b) initializing said model essentially as a function of feed; and (c) subjecting the initialized model to computerized estimation based on roughness and feed values taken from the last machined workpiece, thereby to determine the largest allowable feed for attaining a desired surface roughness in subsequently machined workpieces or segments of the series. The mathematical model is an algorithm of the form R = [1262.79]f²/r. The model is linearized and initialized to give the form R = β₁s R f+β₂R max  where R is the actual roughness and R max  is desired roughness, f is actual feed, β₁ and β₂ are coefficients to be updated by estimation, and s R  is a scale factor chosen to make the first term have the same order of magnitude as the second term. Computerized estimation is carried out by converting the above initialized linear model to vector matrix notation with provision for the estimated coefficients in the form R n  = ϑ T x n , where R n  is measured roughness, x n  is a computed vector taken from measured feed, and ϑ is a vector to be estimated with "T" denoting the transpose of the vector. After inserting roughness and feed values into such vector model, taken from the last machined workpiece, the coefficients are recursively estimated by sequential regression analysis.
Patent EP-0363108-A2 (EP)
Inventor: PRONOVOST ALLAN DAVID EASTMAN
IPC: G01N33/531
Filed: 1989-09-29
Abstract: A wash solution having a pH of from 7 to 12 comprises at least 0.1 weight percent of one or more cationic surfactants. This wash solution is useful in assays for chlamydial or gonococcal organisms, such as  Chlamydia trachomatis  or  Neisseria gonorrhoeae . In particular, it can be used to remove uncomplexed materials from the insolubilized complexes formed between antigen and antibodies.
Patent EP-0373868-A2 (EP)
Inventor: REES JAMES D
IPC: G03G13/01
Filed: 1989-12-12
Abstract: A reproduction device forms a two-color copy in a single-pass mode. An original document (30), bearing fluorescent material on selected portions thereof, is illuminated by a light source (39). The light reflected from the document is transmitted through an colored filter (45) and is projected onto the surface of a monopolar photoreceptor (12). Light incident on the fluorescent material is absorbed over a specific wavelength range and is re-emitted at a different wavelength range. This light, and light reflected from the white background, are transmitted through the filter of a color associated with the re-emitted radiation. Light reaching the photoreceptor discharges charged areas thereon at two energy levels. The resulting latent image incorporates three separate discharge levels, corresponding to the dark image information, colored fluorescent areas, and background areas. The dark and colored areas are developed with appropriate colored toner by developer units (55, 56) biased at the appropriate levels.
Patent EP-0377299-A2 (EP)
Inventor: CROW WILLIAM M
IPC: G06F9/44
Filed: 1989-12-20
Abstract: A computing system having an object management facility (100) is presented. The object management facility (100) manages a plurality of objects (201-205,206-210). Each object (201-205,206-210) references an application (101) designed to run in conjunction with the object management facility (100). The computing- system also includes an encapsulation system (844 - 848) which facilitates the inclusion in the computing system of a first application (846) not designed to run in conjunction with the object management facility (100). The encapsulation facility includes an encapsulation shell (845) and a shell filter (844). The encapsulation shell (845) is referenced by objects (201-205,206-210) as if the encapsulation shell (845) was an application (101) designed to run in conjunction with the object management facility (100). The encapsulation shell (845) also acts as an interface between the object management facility (100) and the first application (846). The shell filter (844) interacts with the encapsulation shell (845) and upon instruction from the encapsulation shell (845) is able to intercept commands from a user (843) to the first application (846). The shell filter (844) also forwards to the first application (846) commands generated by the encapsulation shell.
Patent EP-0352217-A2 (EP)
Inventor: BARK DIETER
IPC: F23N5/24
Filed: 1989-07-18
Abstract: The present invention relates to a process and apparatus for controlling and supervising a fuel-heated apparatus, in particular a circulation water heater, with the use of at least one microcomputer system which has a plurality of sensors which are present for sensing digital and analog values and positions. The invention is characterised in that, when two microcomputer systems (22, 25) are used, the safety-relevant input signals are input in both systems, whereupon each microcomputer system calculates for itself the corresponding adjusting signals and an output signal is only forwarded to the respective output stages (35, 36, 37, 45) when the adjusting commands of both microcomputer systems (22, 25) are identical, each microcomputer system additionally independently having the possibility of switching without current, with the aid of a safety cut-out (28), all output stages and actuators and consequently bringing the fuel-heated apparatus into the safe state, a number of safety-relevant functions, for example flame supervision, temperature limiters, supervision of water shortage, air and waste gas, being brought about in the same microcomputer system (Figure 2).   <IMAGE>
Patent EP-0374105-A2 (EP)
Inventor: PALUMBO GIANFRANCO
IPC: A61F13/15
Filed: 1989-11-21
Abstract: An absorbent element for absorbent articles comprised of hydrophilic fibres (24) and a discontinuous, non-uniform layer of particles of absorbent hydrogelling material (17) arranged on the upper surface of the element in­cludes a deposition zone on which the absorbent hydrogelling material is distributed with an increased surface density. The zone of increased surface density of the absorbent hydrogelling material can preferably be located in different positions suitable for the different anatomical forms of the users, so as to ensure more effective sealing against the backflow of the liquid and thus ensure an improved feeling of dryness.
Patent EP-0384190-A2 (EP)
Inventor: NAKATA AKIRA C O CHUO KEKYUSHO
IPC: C08L67/02
Filed: 1990-02-02
Abstract: A polyarylene sulfide resin composition comprising a composition obtainable by the reaction of a polymer composition comprising 100 parts by weight of a composition of 10 to 90 wt.% of a polyarylene sulfide resin and 90 to 10 wt.% of a thermoplastic polyester, 0.01 to 10 parts by weight of a polyfunctional oxazoline compound and 0 to 300 parts by weight, based on 100 parts by weight of the composition consisting of the polyarylene sulfide resin and thermoplastic polyester, of a filler. The polyarylene sulfide resin composition of the present invention, because of the polyarylene sulfide resin and the thermoplastic polyester having been made compatible with each other, is excellent in the adhesive property of paint film (paintability) and the appearance of the surface without a large reduction in the excellent heat resistance and mechanical properties inherent to the polyarylene sulfide resin.
Patent EP-0383268-A2 (EP)
Inventor: SUGIYAMA TOMOHITO
IPC: G06F9/38
Filed: 1990-02-13
Abstract: A data processor is provided with a branch destination loca­tion table (4) and a controller (7) to control branching in the execution of branch instructions. The branch destination location table (4) stores the addresses of all branch destina­tions in storage locations therein identified by a label iden­tifier in the branch. When a branch instruction is fetched from a program memory (1), the branch destination location table (4) is accessed using the label identifier to determine if a valid branch destination address is stored therein. If a valid address is found, that address is inserted in a program counter (2) and branching is achieved. If an invalid address is found, the program counter (2) is simply incremented to fetch the next instruction in the program sequence.
Patent EP-0390142-A2 (EP)
Inventor: USHIGAMI YOSHIYUKI C O NIPPON
IPC: C21D8/12
Filed: 1990-03-29
Abstract: A process for producing a grain-oriented electrical steel sheet having a high magnetic flux density, comprising the steps of: heating a steel slab comprising 1.8 to 4.8 wt% Si, 0.012 to 0.050 wt% acid-­soluble Al, 0.010 wt% or less N, and the balance consisting of Fe and unavoidable impurities, to a temperature for hot rolling; hot-rolling the heated slab to form a hot-rolled strip; cold-rolling the hot-rolled strip to a final product sheet thickness at a final cold rolling reduction of 80% or more by a single step of cold rolling or by two or more steps of cold rolling with an intermediate annealing step inserted therebetween; primary-recrystallization-annealing the cold-rolled strip; final-annealing the primary-­recrystallization-annealed strip so that secondary-­recrystallized grains substantially completely grow up in a temperature region of from 1000 to 1100°C and then purification is effected above 1100°C; and subjecting the primary-recrystallization-annealed steel strip to a nitriding treatment before a secondary recrystallization occurs during the final annealing.
Patent EP-0395069-A2 (EP)
Inventor: KATOH KAZUNOBU
IPC: G03C1/06
Filed: 1990-04-26
Abstract: A silver halide photographic material is disclosed, which comprises (a) at least one light-sensitive silver halide emulsion layer containing a hydrazine derivative and (b) a hydrophilic colloid layer which is different from the light-sensitive silver halide emulsion layer and which contains a redox compound capable of releasing a development inhibitor as a result of oxidation.
Patent EP-0414113-A2 (EP)
Inventor: HERPEL CARSTEN DIPL-ING
IPC: G06F15/00
Filed: 1990-08-16
Abstract: 2.1 For the purpose of data reduction, motion-compensating predictors are determined which are additionally improved by recognition and compensation of zoom and pan. 2.2 A vector histogram, which is used for determining a pan vector and the zoom factor is generated from data of a block-oriented motion estimator. A pure pan vector is determined from the vectors of greatest frequency. When the existence of a zoom is suspected, the pan vector is generated from a cleaned-up vector histogram. 2.3 The invention is preferably used in digital image processing systems.
Patent EP-0443084-A2 (EP)
Inventor: PAYNE MICHAEL W
IPC: E04F13/00
Filed: 1990-09-10
Abstract: A fabric tile which is formed of a metal pan having tightly stretched thereover a fabric sock (22). The fabric sock (22) is attached to the metal pan by way of mounting or attachment clips (30) which are sewed and glued to edge portions of the fabric sock (22) and which are engaged over terminal return flanges of the metal pan. Each clip (30) is elongated and extends a major portion of an edged dimension of the metal pan and is of a J-shaped cross section. Each clip (30) includes an elongated stem (34) which terminates in a generally U-shaped hook (36). The hook (36) includes a first leg (38) which is a continuation of the stem (34) and a second leg (40) disposed in spaced parallel relation to the first leg (38) by way of an integral base (42). The second leg (40) has a terminal free edge portion (44) which is flared relative to the first leg (38) so as to facilitate engagement of the clip (30) with the metal pan.
Patent EP-0420050-A2 (EP)
Inventor: SCHUSTER RUDOLF DIPL-ING
IPC: H05K3/34
Filed: 1990-09-20
Abstract: The component to be soldered on is placed on the circuit board whereupon the clip electrodes of the soldering device are lowered and the connecting legs of the component are pressed with a force (F2) against the circuit board. After heating (T) the clip electrodes in order to melt the solder, a further adjustment (sz+) of the clip electrodes takes place to press the connecting legs into the melted solder. Subsequently, a solder layer is formed between the connecting legs and the circuit board by reducing the force (F2) exerted on the clip electrodes and/or by the clip electrodes being set back (sz-) by a defined amount. 
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Patent EP-0425872-A2 (EP)
Inventor: KNIEF WALTER
IPC: B24D3/32
Filed: 1990-10-13
Abstract: The invention relates to a process for manufacturing a disc (15) for polishing or grinding display screens, comprising     - a supporting plate (16) of elastomeric material and - a segmented polishing or grinding covering (21) of plastic, in particular of foamed plastic, the individual segments (22, 23, 24) being separated from one another by stelliformly and radially running grooves (25, 26, 27; 28, 29). The invention essentially comprises the following process steps:   - the segments (22, 23, 24) are inserted into the cavities of the lower mould part of the rotation device; - after closing the rotation device, lower mould part and upper mould part are heated up; - the device is brought to a minimum rotational speed of 300 revolutions/minute; - the casting compound prepared in a mixing device, in particular based on a polyurethane elastomer, is mixed with a crosslinking agent; - after adding the crosslinking agent, the casting compound is brought as quickly as possible into the charging opening of the rotation device, from which it pours under the influence of the centrifugal force, while at the same time displacing air and undergoing crosslinkage, into the recesses within the upper mould part which form the supporting plate. o
Patent EP-0471114-A2 (EP)
Inventor: SERBIAK PAUL JOHN
IPC: A61F13/472
Filed: 1991-01-03
Abstract: A thin sanitary napkin (10) is disclosed along with its method of manufacture. The napkin has a liquid-impermeable baffle (12) and an absorbent (14) retained on the baffle (12). The absorbent (14) has a longitudinally-extending central absorbent zone (16) with a width of less than about 5.08 cm (2 inches). The central zone (16) is capable of absorbing at least 20 grams of body fluid which is discharged from the vaginal cavity and deposited onto the napkin. The central zone also has a greater stiffness than adjacent portions of the napkin so as to resist twisting and bunching during use. The sanitary napkin further has a caliper of less than about 5 millimeters.
Patent EP-0395137-A2 (EP)
Inventor: COLAPICCHIONI CLAUDIO
IPC: G01N33/543
Filed: 1990-04-13
Abstract: A description is given, together with relative preparation processes, of a sensor containing an immunochemical membrane and a device of EOS or CHEMFET type containing surface silicon oxide adhering to said membrane via a polysiloxane matrix, characterised in that the immunochemical membrane is formed from a functionalized antigen or from the same functionalized antigen bonded to a protein, said immunochemical membrane being bonded chemically to the polysiloxane matrix by functional groups present on the same antigen or by bifunctional coupling agents.
Patent EP-0421566-A2 (EP)
Inventor: HOSAKA MAMORU
IPC: G06T11/20
Filed: 1990-03-14
Abstract: A system for generating approximate curves which takes out three adjacent points from input points to generate quadratic rational Bezier curve approximating the curve fitting these three points, extends the curve to the maximum within the user-specified tolerance, and repeats said processes. 
     A system for memorizing quadratic rational Bezier curves which memorizes a tangent at a control point which is one side end of the first curve, a control point which is another side end of the last curve, control points which are one side ends of each curve and a camber vector.
Patent EP-0402038-A2 (EP)
Inventor: HARELSTAD ROBERTA E C O MINNES
IPC: C08F26/06
Filed: 1990-05-31
Abstract: This invention provides an optical medium and a process therefor wherein the medium exhibits third order nonlinear optical response and comprises a polymer with pendant groups having delocalized pi-electron character forming a charge transfer complex with dopant molecules. The optical medium is useful in optical devices, such as optical switches or light modulation devices as a component or as a coating. In other aspects, novel polymers and polymer complexes are disclosed.
Patent EP-0408305-A2 (EP)
Inventor: TAKEUCHI YUKIHISA
IPC: B41J2/16
Filed: 1990-07-10
Abstract: A piezoelectric/electrostrictive actuator comprising a substrate (2), a plurality of electrodes (4) in the form of strips formed on at least one surface of the substrate such that the electrode strips are spaced from each other in a direction parallel to the substrate surface, and a piezoelectric/electrostrictive portion (6, 6a) which is disposed between the adjacent strips of the electrodes in the spacing direction, and in contact with the adjacent electrode strips. The piezoelectric/electrostrictive portion produces a flexural displacement or force due to at least the longitudinal mode of converse piezoelectric or electrostrictive effect upon application of a voltage between the adjacent electrode strips.
Patent EP-0428339-A2 (EP)
Inventor: TURNBULL MICHAEL DRYSDALE
IPC: C07D261/08
Filed: 1990-11-08
Abstract: A method for killing or controlling nematode pests which comprises applying to the locus of the pests or to a plant susceptible to attack by the pest an effective amount of a compound of formula (I) :
      wherein R¹ is an optionally substituted aryl or optionally substituted heterocyclic group and novel compounds of formula (I) where R¹ is not phenyl.