baber/WOPTO huggingface dataset:
Patent EP-0434643-A2 (EP)
Inventor: BARLOCCHI GABRIELE
IPC: H01L21/66
Filed: 1990-12-18
Abstract: A method for the quantitative assessment of the degree of geometrical deformation undergone by a surface profile of a wafer following the formation of a conformal surface layer employs a simple mechanical profilometer, whose stylus is run over a target morphological detail comprising at least two mutually parallel ridges or reliefs which rise above the plane of the surface of the wafer for a height of between 0.1 and 0.5 µm, and which enclose between them a depression of a width of between 2 and 4 µm, in order to determine the elevation of the bottom of the valley between the two ridges relative to the plane of the surface of the wafer from which the ridges rise following the formation of one or more similar surface layers. The vertical measurement of the elevation undergone by the bottom of the valley in itself represents a quantitative index of the vertical and horizontal geometrical deformation undergone by the details of the surface profile of the wafer. In order to determine characteristics of automatic alignability by a particular apparatus employing said target details for automatic alignment, it is possible to establish a maximum value for said distortion index, determined as above, above which the automatic alignment capability is lost.
Patent EP-0424340-A2 (EP)
Inventor: HAKANSSON LARS AKE HILMER
IPC: C23F1/28
Filed: 1990-10-16
Abstract: The invention relates to a method for pickling and/or etching iron and steel surfaces, in which the surfaces are treated in a pickling bath which contains inhibitors, mineral acids and metal salts of the anions of the acids. The method is characterized in that the inhibitor used is a mixture of tensides, silicates, phosphates and possibly oils, and in that the surfaces are preferably coated with inhibitor prior to being treated in the pickling bath. The surfaces are preferably first degreased with an aqueous tenside solution, therewith to emulsify hydrocarbons, such as grease and oils. Growth of microorganisms is stimulated for biological degradation of the hydrocarbons, by adding nutrient substances, whereafter the surfaces are treated in the pickling bath without intermediate rinsing.
Patent EP-0443368-A2 (EP)
Inventor: OKUBO NAOFUMI
IPC: H03F1/34
Filed: 1991-02-06
Abstract: A constant-amplitude wave combination type amplifier includes a first amplifier (1, 41) outputting a first amplified output (kA), and a second amplifier (2, 42) outputting a second amplified output (kB). The constant-amplitude wave combination type amplifier also includes a first constant-amplitude wave generating circuit (43) for combining an input wave (X) and the second amplified output from the second amplifier and for generating a first constant-amplitude wave (A) which is input to the first amplifier, and a second constant-amplitude wave generating circuit (44) for combining the input wave and the first amplified output from the first amplifier and for generating a second constant-amplitude wave (B). Further, the constant-amplitude wave combination type amplifier includes a wave combining circuit (45) for combining the first and second constant-amplitude waves and for generating an output wave.
Patent EP-0451576-A2 (EP)
Inventor: HECKMANN KLAUS PROF DR
IPC: G01N27/333
Filed: 1991-03-22
Abstract: An NO3<->-selective membrane was developed for use in NO3<H N=0><->-sensitive electrodes. The membrane contains salts of hydrophobic organic cations with anionic hexanitrato complexes of tetravalent metal ions. Said salts are dissolved in a basic membrane matrix composed of a likewise hydrophobic polymer.
Patent EP-0474964-A2 (EP)
Inventor: ELVERS BJOERN
IPC: C23C14/24
Filed: 1991-04-26
Abstract: In an apparatus for the continuous coating of strip substrates in a vacuum coating chamber having a multiplicity of evaporator boats (1, 1', ...) of approximately equal size and configuration which form an evaporator array and are arranged along and in parallel with the direction of strip travel (A) at approximately equal distances from each other, which are all made of an electrically conducting ceramic and are capable of being heated by direct current passage, and in which apparatus a device is provided for continuously supplying wire to be evaporated to the evaporator boats, the individual evaporator boats (1, 1', ...) of the evaporator array are each arranged in an offset manner with respect to each other, all the evaporator boats (1, 1', ...) jointly overlapping a narrow coating zone (B) which extends transversely to the direction of strip travel (A). <IMAGE>
Patent EP-0459382-A2 (EP)
Inventor: KANE JOJI
IPC: G10L15/20
Filed: 1991-05-28
Abstract: There is disclosed a signal detection apparatus for detecting a noise-suppressed speech signal. In the signal detection apparatus, a band division process including a Fourier transformation is performed for an inputted speech signal, thereby outputting spectrum signals of plural channels. A cepstrum analysis process is performed for the spectrum signals, and a peak of the obtained cepstrum is detected in response to the cepstrum analysis result. Thereafter, a speech signal interval of the inputted noisy speech signal is detected in response to the detected peak, and a noise is predicted in the speech signal in response to the detected speech signal interval. Then, the predicted noise is canceled in the spectrum signals thereby outputting noise-suppressed spectrum signals. Finally, the noise-suppressed spectrum signals are combined and are inverse Fourier-transformed, thereby outputting a noise-suppressed speech signal.
Patent EP-0499713-A2 (EP)
Inventor: HAYASHI TOSHIOMI
IPC: F16L13/14
Filed: 1991-12-20
Abstract: A pair of pipes (1a, 1b) are joined airtightly and securely through a pipe joint (10) including a cylindrical main body (11) and a pair of contact portions (12a, 12b) which are spaced from each other in the longitudinal direction of the main body (11) and integrally protrude from the central inner wall thereof. Each contact position (12a, 12b) is capable of contacting an end surface of the respective pipe (1a, 1b). A retaining portion (13a, 13b) integrally protrudes from the inner end of each contact portion (12a, 12b) along the longitudinal direction of the main body (11) for clamping the respective pipe end in conjuction with the main body (11) by inserting the pair of pipes (1a, 1b) between the main body (11) of the pipe joint (10) and the retaining portions (13a, 13b) from both ends of the main body, and upsetting the pipe joint (10) with the pipes until the retaining portions (13a, 13b) closely contact each other. In doing so, the central portion of the main body (11) along with joining pipe ends (3a, 3b) bulge outwardly in the radial direction so that the pipe ends that are clamped between the projected central portion of the main body (11) and the pair of retaining portions (13a, 13b) are seamed.
Patent EP-0492622-A2 (EP)
Inventor: SCHULZ KENNETH A
IPC: H04N1/00
Filed: 1991-12-24
Abstract: A system and method for the recharge of postage meters. A request for recharge of a postage meter is transmitted to a remote location as a facsimile image. The information in the request is extracted using OCR or similar techniques and transmitted to a data processing center which verifies the request and, if verified, returns a unique code which will recharge the requesting meter. The code is transmitted to the requesting meter as a second facsimile image.
Patent EP-0474275-A2 (EP)
Inventor: CHEUNG DAVID K
IPC: G01R31/319
Filed: 1991-08-12
Abstract: A plurality of "pin slice" circuits, each associated with a separate pin of the device under test (DUT). Each pin slice circuit contains its own memory and registers and circuitry for generating the necessary test signals. Test data is loaded into the individual pin slice circuits in a vertical word fashion, such that all of the bits of the vertical word correspond to the individual pin, allowing the characteristics of an individual pin test sequence to be varied independently of the other pins. A participate memory is used to select different groupings of the pin slice circuits which are to be programmed in parallel when a group of pins are to receive the same test signals. Separate enable signals to the various stages of the pin slice circuits allow different aspects of the test pattern to be also varied independently.
Patent EP-0454280-A2 (EP)
Inventor: KOCHSMEIER HANS H
IPC: B05C1/08
Filed: 1991-04-16
Abstract: The invention relates to a depression gravure on a coating roller, namely a raster roller for a coating unit, the circumferential casing of the roller holding the gravure consisting of ceramic and the depressions being separated from one another by longitudinal and transverse webs. The ratio of the length L of the depressions (1) with respect to their width D is 2:1 to 20:1. <IMAGE>
Patent EP-0444921-A2 (EP)
Inventor: OKINOSHIMA HIROSHIGE
IPC: C08G77/14
Filed: 1991-02-28
Abstract: Siloxane compounds having the general formula [1]:
       
 wherein R is a substituted or unsubstituted monovalent hydrocarbon group having from 1 to 10 carbon atoms, and n is an integer of from 0 to 100. The compound, because of the two vinylsilyl groups and two acid anhydride groups introduced into the molecule thereof, is useful as an intermediate or modifying agent in the synthesis of various organic resins such as polyimide resins.
Patent EP-0450805-A2 (EP)
Inventor: DEMOSTHENOUS MARIA
IPC: C09C3/06
Filed: 1991-03-20
Abstract: A new process for the production of pigments suitable for use in paper laminates has been developed in which a metal oxide is treated with a water-soluble salt of zinc or a phosphate or phosphoric acid and subsequently with an alkali metal aluminate in such a manner that there is deposited on the metal oxide a coating containing zinc and phosphate ions together with aluminium ions. The pH of the dispersion following the metal oxide is maintained at a value not exceeding 8.0 during precipitation. A particularly useful pigment is produced which has a coating containing zinc ions in an amount of 0.5 to 5% by weight as ZnO, phosphate ions in an amount of 0.2 to 3% as P 2 O 5  and aluminium ions in an amount of 0.5 to 5% expressed as Al 2 O 3  on the weight of TiO 2 .
Patent EP-0478209-A2 (EP)
Inventor: HERBERT RAYMOND JOHN
IPC: H04N1/419
Filed: 1991-09-18
Abstract: A method and apparatus for transmitting print data signals serially to a printing device (21) is disclosed. Print data for printing dots selectively line by line is stored as a plurality of bytes in which each byte represents the number of contiguous binary bits to be output to the printing device having the same binary value. The bytes are output to a comparator (24) which receives the output of a counter (25) driven by clock signals (26). The counter is started when a byte is output and the clock signals clock a data line (29) held at a level representing the value of the bits. When the count equals the byte, the comparator (24) toggles the data line so that it is at a level representing the next binary bits to be output. The apparatus is disclosed for use in a franking machine.
Patent EP-0493117-A2 (EP)
Inventor: TANAKA KOHICHI - AZA OOHIRA
IPC: H01L21/304
Filed: 1991-12-24
Abstract: A semiconductor wafer handling apparatus and method for transferring a wafer, one of whose faces has been already polished, from a wafer holder, which holds the wafer with the wafer's polished face facing downward, to a wafer cassette submerged in water contained in a water tank; the apparatus includes a wafer receive assembly and a water tank and the wafer receive assembly has a flat surface and is adapted to swing between an up-facing position at which the flat surface faces upward and a down-facing position at which the flat surface faces downward, and the wafer receive assembly is provided with ejection nozzles which eject water with a force sufficient to keep the wafer floating, and the water tank contains a wafer cassette to receive the wafer, and is capable of forcing the wafer which is left to sink in the water to enter the wafer cassette; whereas the method comprises: dropping the wafer from the wafer holder with the polished face facing downward onto a thin water layer formed over the wafer receive assembly; swinging the wafer receive assembly together with the wafer through an angle of about 180 ° so that the wafer is turned upside down and brought in the water tank, whereupon the wafer sinks through the water with the polished face facing upward; and forcing the wafer to enter the wafer cassette.
Patent EP-0449754-A2 (EP)
Inventor: ENDO SHINICHIRO
IPC: G05D1/02
Filed: 1991-03-29
Abstract: A control system for an unmanned carrier vehicle (1), capable of automatically and independently traveling along a guiding line (11) laid on a floor, provides a steering angle control unit and/or a velocity control unit. Herein, when the unmanned carrier vehicle is deviated from the guiding line, its deviation is detected. By performing a time-differentiation (i.e., time derivation) on the deviation, a deviation direction of the unmanned carrier vehicle is computed. In addition, a steering angle of a steering wheel of the unmanned carrier vehicle is detected by a sensor (DT, 7a, 7b) provided at a wheel of the unmanned carrier vehicle. Based on a result of a fuzzy inference to be performed on the deviation, deviation direction and steering angle, the steering angle control unit controls the steering angle of the unmanned carrier vehicle. Similarly, the velocity control unit controls a traveling velocity of the unmanned carrier vehicle. Incidentally, the fuzzy inference is performed in accordance with the predetermined fuzzy control regulation.
Patent EP-0454621-A2 (EP)
Inventor: SUTTER MARIUS DR
IPC: A01N43/80
Filed: 1991-04-16
Abstract: There are described nematicidal agents containing, as active substance, compounds of the formula I 
<IMAGE>
 in which R is nitro or halogen,
 furthermore processes for the preparation of the compounds of the formula I, novel intermediates of the preparation process, and methods for using the active substances and the agents in the control of nematodes.
Patent EP-0461103-A2 (EP)
Inventor: PFEIFFER JOHANN DIPL-ING
IPC: H04L25/49
Filed: 1991-05-29
Abstract: The invention relates to a method for processing signals for signal transmission in the baseband on a two-wire line using a modem. To reduce adjacent channel interference on the two-wire line and effective line loss, it is proposed in a method of the abovementioned type that the signal to be transmitted be coded by combining every three transmitted bits to form a tri-bit and by allocating one of eight distinguishable transmission levels for a main data channel in each case to each tri-bit, where the modulation rate of the symbols on the line is reduced to one third of the bit rate. …<IMAGE>…
Patent EP-0507055-A2 (EP)
Inventor: KOHYAMA MITSUAKI
IPC: G03G15/16
Filed: 1992-02-03
Abstract: An image forming apparatus includes a transfer brush (15b) for transferring an developed image on an photoconductive drum (1) to a paper sheet (16). The transfer brush is formed in a plate-like shape by a number of electroconductive fibers bundled together. The transfer brush has a contact portion set in elastic contact with the drum and presses the paper sheet, which is fed by the feeding device, against the drum under a predetermined pressing force. A DC current supply applies voltage to the paper sheet through the transfer brush so as to electrostatically attract the developed image to the paper sheet. The transfer brush is inclined to the image carrier so as to allow the paper sheet to be guided into an area between the drum and the transfer brush.
Patent EP-0530468-A2 (EP)
Inventor: KURASHINA HIROYUKI
IPC: H04L7/02
Filed: 1992-07-09
Abstract: A system is provided for converting an input digital data sampled at a first sampling frequency to an output digital data to be sampled at a second sampling frequency. The input digital data is sampled to obtain sampling data with respect to an estimating data corresponding to a data at a sampling point of the output data. The sampling is performed within a period of the least common multiple between a period of sampling of the input digital data and a period of sampling of the output digital data. The estimating data is interpolated from the obtained sampling data.
Patent EP-0526845-A2 (EP)
Inventor: RUDOLF BORIS E
IPC: B24B7/30
Filed: 1992-07-31
Abstract: A process for grinding or polishing plastic material or glass, in particular for grinding acrylic glass, is specified, in which a machine-driven grinding tool is moved over a working surface (44). The grinding is carried out dry, without liquid working medium, the grinding tool executing a circular movement or a movement oscillating about a fixed swivel axis at high frequency, the grinding dust being sucked away at the edges. The grinding tool has a closed grinding face with resiliently embedded abrasive elements, a plurality of abrasive elements preferably having a planar front face, which are bounded in a relatively sharp-edged fashion by side faces, and the majority of the front faces being orientated approximately parallel to the working surface (44). The process permits precision finishing of plastic and glass surfaces with particularly high surface quality. 
<IMAGE>
Patent EP-0516220-A2 (EP)
Inventor: NUIJTEN CORNELIUS PETRUS CATHA
IPC: H04R27/00
Filed: 1992-05-20
Abstract: An electroacoustic amplifier arrangement comprises a plurality of microphone arrangements (1) comprising each a microphone (2) which can be coupled  via  coupling means (3) to amplifier means (6) and a comparator means (5). The amplifier arrangement further includes a threshold signal generator means (4). The threshold signal generator means (4) has a first and a second (12, 13) input coupled to the input and output respectively, of the amplifier means (6) and is arranged for deriving a threshold signal as a function of the signals applied through these inputs. The output of the threshold signal generator means (4) is coupled to an input of the comparator means (5). The threshold signal generator means is arranged for deriving a threshold signal as a function of the gain factor adjusted in the amplifier means.
Patent EP-0510975-A2 (EP)
Inventor: SUGIYAMA KENJI
IPC: H04N19/593
Filed: 1992-04-23
Abstract: Efficient coding decoding apparatuses are permitted to easily carrying out, without degradation of the picture quality, random access, high speed search or image editing necessary in media of the storage system in a processing system for recording, transmitting, and displaying a digital signal, and to efficiently encode/decode an image signal with a lesser quantity of codes. An original image signal from a terminal (l) is coded by an orthogonal transformer (4) and a quantizer (36). A subtracter (33) subtracts, from the original image signal, a reproduced image signal obtained by an inverse quantizer (7) and an inverse orthogonal transformer (l0) to provide a negative error signal. An adder (30) adds a negative error signal delayed by one frame and multiplied by a predetermined coefficient (Ke) at a multiplier (34) and the original image signal. As a result, an operation is carried out to multiply an error of a frame by the predetermined coefficient (Ke) to subtract it from an original image of the next frame to encode the subtracted signal to subtract its error from an original image signal of the further next frame. The value of the predetermined coefficient (Ke) is varied depending upon matching between images.
Patent EP-0532329-A2 (EP)
Inventor: ARZONICO BARBARA
IPC: A24D1/00
Filed: 1992-09-10
Abstract: Cigarettes include a filter element which have a gathered web of paper incorporating a carbonaceous material. The paper is gathered so as to include a plurality of longitudinally extending channels, and the channels provide a cross-sectional void area of about 5 to about 30 percent of the filter element.
Patent EP-0508845-A2 (EP)
Inventor: KOBAYASHI TETSUJI
IPC: G06V10/34
Filed: 1992-03-11
Abstract: Method and apparatus for image processing for comparing fingerprints and the like. To avoid reducing the accuracy of the comparison due to the variations of the fingerprint lines when the fingerprint input is made, a method has been resolved wherein the line width of the registered fingerprint is narrowed more than the line width of the tested fingerprint. Reduction of the throughout of recording and comparison is solved by the selective utilization of the input of an activated fingerprint image, the judging of the fingerprint boundaries and the processing of only the activated division, and, additionally, in the comparison, by midway abandonment, midway decision, multi-step variation of the increment, and/or introduction of a sub-template jump search. By introducing the degree of discordance between two images, it becomes possible to compare two images based on a comparison of the black pixels of the registered image to those of the image undergoing testing As a result, the processing amount for position matching is reduced in comparison with the case when all black pixels of two images are checked, or the entire images, including black and white pixels, are checked. Reduction of the amount of processing required for registration and comparison is resolved by setting the black pixel address of the narrowed image of the registered fingerprint to recorded information as a subtemplate and a non sub-template, by creating a storage form which takes into consideration the narrowed image by means of the storage of registered information, and by carrying out the reduction of registered data. Reduction of the throughput of narrowization processing (including thinning) was resolved by the direct detection of the center point of a black pixel aggregation, and by a preformed judging table.
Patent EP-0499580-A2 (EP)
Inventor: WINKELJANN ANTONIUS
IPC: B25B27/02
Filed: 1992-01-31
Abstract: The extraction tool (1) for expanding sleeves (2) of anchors consists of a shank (1a) which has a conical external thread (1b) tapering towards one, free end and carries a force-application means (1c) at the other end. The shank (1a) has a central passage bore (1d), extending in the longitudinal direction, for receiving anchor bolts (4). After relieving the expanding sleeve (2) by axially driving in the anchor bolt (4), the extraction tool (1) can be screwed, by way of its external thread (1b), into the gap between the anchor bolt (4) and the expanding sleeve (2). By screwing in the extraction tool (1), the external thread (1b) cuts into the internal wall (2b) of the expanding sleeve (2) and thus forms a positive connection. By applying an axial force to the force-application means (1c), the expanding sleeve (2) can be extracted from the drill hole (9) of the receiving material (3). 
<IMAGE>
Patent EP-0563521-A2 (EP)
Inventor: EATON SHEFFIELD S JR
IPC: G11C11/4074
Filed: 1993-01-26
Abstract: In a DRAM, a logic "1" is redefined as the minimum VCC value minus one threshold voltage. The word line (16) is not bootstrapped. This intermediate voltage is applied via the sense amplifier (22) to the bit lines (14, 14') during refresh.The intermediate value is controlled preferably by a comparator (34) controlling a driver (36). Even when the power supply voltage rises, the intermediate voltage is held constant by comparison to a fixed reference voltage (Vref). Operating current is substantially reduced because less power is required to write data into the memory cells (12, 18; 12', 18'), since a controlled lower voltage is used.
Patent EP-0545909-A2 (EP)
Inventor: HATTORI RYUICHI
IPC: A47J37/12
Filed: 1990-07-20
Abstract: A centrifugal separation apparatus comprises a rotatable cylindrical member (136) including a side perforated wall and an opened bottom and a bottom lid member (138) including a central raised portion and a side wall inclined downwardly and outwardly. The bottom lid member (138) is moveable between an upper position in which said bottom lid member is engaged by the lower end face of said cylindrical member (136) and a lower position in which said bottom lid member is spaced apart from the lower end of said cylindrical member (136) to form a gap therebetween.