baber/WOPTO huggingface dataset:
Patent EP-0467373-A2 (EP)
Inventor: HIDEAKI SADAMATSU
IPC: H04N5/20
Filed: 1991-07-18
Abstract: A black compensation circuit for compensating a luminance signal which is subjected to edge enhancement, comprises: a black-level expanding circuit responsive to a control signal and the luminance signal for performing expansion of a tone of a black portion of the luminance signal and for performing conversion of the luminance signal into a black-level expanded signal in the absence of the control signal; a low-pass filter circuit for low-pass filtering the luminance signal to remove high frequency components; a detection circuit responsive to an output of the low-pass filter circuit for detecting the blackest level for a given interval; and a comparing circuit for comparing the blackest level with a given level to produce the control signal, thereby the black-level expanding circuit stopping the expansion and the conversion in the presence of the control signal. The blackest level does not change with sharpness because after the luminance signal subjected to edge enhancement is passed through the low-pass filter, it is sent to the detection circuit. An input signal of the low-pass filter may be supplied from the black-level expanding circuit.
Patent EP-0475140-A2 (EP)
Inventor: FAUTH KARL-HEINZ
IPC: B29B13/10
Filed: 1991-08-22
Abstract: Verfahren zum Zerkleinern von Polyisobuten mit Molmassen von 5.000.000 bis 12.000.000 durch Vermahlen bei Drücken von 1 bis 50 bar und mittleren Verweilzeiten von 0,1 bis 30 Minuten, wobei man das Vermahlen bei Temperaturen von 0 bis 60°C vornimmt.
Patent EP-0477992-A2 (EP)
Inventor: YAMAKAGE YASUHIRO DAI RAKUSAI
IPC: H01L21/3065
Filed: 1991-09-30
Abstract: An apparatus for effecting micro fabrication of wafer surfaces by emitting a focused ion beam thereto, in which a gas is jetted through a gas introducing pipe (21) to an ion emitter (11) whreby the gas is adsorbed to an emitter surface. A potential difference is applied between the emitter and an extraction electrode (13) to extract ions. The ions are then accelerated and focused into a focused ion beam having an etching function. The focused ion beam is deflected by a deflecting electrode (16) to form a predetermined pattern. The focused ion beam is decelerated by action of a decelerating electrode (17) prior to impingement on a wafer under treatment. Consequently, a wafer surface is etched to define the predetermined pattern without damage to the wafer surface.
Patent EP-0492601-A2 (EP)
Inventor: SEKI KATSUJI - - WASHIMIYA-DAN
IPC: C08J5/14
Filed: 1991-12-23
Abstract: A non-asbestos friction material containing friction dust comprising a composite of inorganic compound with polymerization product of cashew nut shell oil is disclosed. The material is used for the brake lining, disc pad and clutch facing for cars and industrial machinery.
Patent EP-0454240-A2 (EP)
Inventor: PASSERINI STEFANO
IPC: H01B1/12
Filed: 1991-04-19
Abstract: An electrochromic window comprises:
     (a) a tungsten oxide (WO₃) electrode on a transparent, conductive glass sheet;   (b) a nickel oxide (NiO) counterelectrode activated by electrochemical intercalation of lithium, on a transparent, conductive glass sheet; and   (c) a solid, polymeric electrolyte interposed between said electrode (a) and said counterelectrode (b),     
 with the polymeric electrolyte being formed by a solid solution of an ionic lithium compound in a solid, cross linked polyether, obtained by copolymerization of a vinyl-ether with a divinyl-ether.
Patent EP-0450873-A2 (EP)
Inventor: CARLISLE WILLIAM DANIEL
IPC: C08G59/50
Filed: 1991-03-28
Abstract: A lubricating oil soluble compound suitable for use as a dispersant additive is obtainable by reacting at elevated temperature a polyepoxide with a dispersant having at least one reactive nitrogen-containing moiety. 
     Intermediates of the general formula IV
       
 where Y′ is a derived from the reaction of the polyeyoxide with reactive nitrogen-containing moieties (i.e. primary or secondary amines) are novel. 
     The process for preparing the lubricating oil soluble compounds comprises at least 2 sequential steps. 
     Lubricating oil compositions comprise a major proportion of lubricating oil and a minor proportion of the lubricating oil soluble compounds.
Patent EP-0458510-A2 (EP)
Inventor: MARTIN RICHARD A
IPC: H02J9/06
Filed: 1991-05-14
Abstract: Circuitry for extending the sustain time of a computer power supply in the event of interruption of commercial A.C. power includes a capacitor bank, an associated charge path for controllably charging the capacitor bank during stable operation of the commercial A.C. power source, and discharge and disconnect paths for discharging the energy stored in the capacitor bank to sustain operation of the computer during interruption of the commercial A.C. power source and for disconnecting the capacitor from the computer power supply when the voltage across the capacitor bank has discharged below a threshold level.
Patent EP-0484159-A2 (EP)
Inventor: YAMAGUCHI TADAHISA
IPC: G09G3/36
Filed: 1991-10-31
Abstract: In a driving device of an active matrix type liquid crystal display unit including a liquid crystal display panel, a scan driver (7), and a data driver (8), a data voltage controlling apparatus is provided to achieve digital multiple gray-scale levels with little flickering. The data voltage controlling apparatus supplies the data driver (8) with a combination of two different voltages selected from a plurality of predetermined digital data voltages (V 1  to V 4 ). The combination of two different data voltages are, for example, a combination of different waveforms, a combination of negative level and positive level, and a combination of two different voltages having at least a voltage difference. Further, a division of T-V characteristics and an exchange of data voltages are carried out to reduce the flickering.
Patent EP-0489551-A2 (EP)
Inventor: SCHREIBER WILLIAM P
IPC: H04R1/26
Filed: 1991-11-29
Abstract: A loudspeaker system has at least a first electroacoustical transducer ( 12 ) having a vibratable diaphragm for converting an input electrical signal into a corresponding acoustic output signal. An enclosure is divided into at least first, second and third subchambers (V₁,V₂,V₃) by at least first (13) and second (11) dividing walls. The first dividing wall (13) supports and coacts with the first electrical transducer (12) to bound the first and second subchambers (V₁,V₂). At least a first passive radiator (P₁) intercouples the first and third subchambers. At least a second passive radiator (P₂) intercouples at least one of the second and third subchambers with the region outside the enclosure. Each passive radiator (P₁,P₂) has an acoustic mass and each subchamber (V₁, V₂, V₃) has an acoustic compliance. The acoustic masses and acoustic compliances coact to establish at least three spaced frequencies in the passband of the loudspeaker system at which the deflection characteristic of the vibratable diaphragm as a function of frequency has a minimum.
Patent EP-0492889-A2 (EP)
Inventor: AKIYAMA TORU
IPC: G11B7/005
Filed: 1991-12-11
Abstract: There is disclosed a crosstalk detector (101 ∼ 105) for detecting a quantity of crosstalk of signals optically read from a recording medium having a plurality of tracks for memorizing information. Where crosstalk detecting signals different from each other are recorded at positions in correspondence with each other on the normal with respect to the tracks between adjacent tracks on the recording medium, the detector comprises means (101, 102, 103) for comparing read signal levels between adjacent tracks at the positions where the crosstalk detecting signals are recorded to thereby calculate a quantity of crosstalk of the read signals. Further, where crosstalk detecting signals are recorded at positions which are not in correspondence with each other on the normal with respect to the tracks between adjacent tracks, the detector comprises means (104, 105) for comparing read signal levels between adjacent tracks at the positions where the crosstalk signals included in the read signals are recorded to thereby calculate a quantity of crosstalk of the read signals.
Patent EP-0492897-A2 (EP)
Inventor: TAM KWOK CHEONG
IPC: G06T15/08
Filed: 1991-12-11
Abstract: A methods and apparatus is disclosed for 3D CT image reconstruction involving a conventional 2D CT reconstruction. A 3D image of the object is reconstructed slice-by-slice by employing, for each slice, a 2D reconstruction procedure, for example, filtered backprojection, on the values of the 2D projection images in the plane of the slice to calculate a 2D image of the object for each of the slices.
Patent EP-0468937-A2 (EP)
Inventor: SARTORIO FRANCO
IPC: G02B26/10
Filed: 1991-07-09
Abstract: An adjustment device for aligning a laser beam along a predetermined reference line includes a base structure carrying first and second plane mirrors (14, 16), in which the first mirror (14) receives a beam (4) from a laser source (2) and reflects it onto a second mirror (16) which in turn reflects it along an output line (8). Each of the two mirrors is rotatable on the base structure (18) about an axis substantially perpendicular to the line of the beam incident on the mirror. Each of the two mirrors is also translatable in a direction (D, E) perpendicular to its axis of rotation (A, E). Control means are associated with each of the two mirrors (14, 16) for rotating the mirrors independently of the translational movement and vice versa.
Patent EP-0497262-A2 (EP)
Inventor: KINOSHITA SATOSHI
IPC: B62D1/184
Filed: 1992-01-28
Abstract: In a tilt steering column assembly, there is provided a tilt lock mechanism (45) comprising upper and lower toothed bars (12,13) which extend along the column assembly, and which are formed with teeth like a rack, and swingably supported by upper and lower steering columns (5,2), respectively. The bars are both placed between two side walls of a lock member (27) having inclined cam slots (25) for moving the bars into and out of engagement. The toothed bars are engaged with each other to lock the tilt steering column assembly securely at a selected tilt position.
Patent EP-0503610-A2 (EP)
Inventor: KOBAYASHI MASAHIKO
IPC: G03G15/00
Filed: 1992-03-11
Abstract: An image forming apparatus comprising functional components secured by a resin apparatus body which is in the form of mutual separable an upper casing (24) at least monocock structured and a lower casing (25).
Patent EP-0511677-A2 (EP)
Inventor: LITZ MARVIN
IPC: B01F5/10
Filed: 1992-04-30
Abstract: A high efficiency gas dissolution system is used to dissolve gas in a portion of a body of liquid, improving gas utilization and reducing associated energy requirements.
Patent EP-0516072-A2 (EP)
Inventor: BRUNING KARL H DIPL-ING
IPC: B29C49/50
Filed: 1992-05-27
Abstract: An improved part removal assembly (17) particularly for a shuttle-type blow molding machine (10) is described. The part removal assembly includes a plurality of suction cups (95) mounted on a vertically moveable piston (87) that travels along a vertically oriented rodless cylinder (81) and a plurality of suction cups (115) mounted on a horizontally moveable piston (107) that travels along a horizontally oriented rodless cylinder (83). A mold assembly (15) shuttles between an extruder head assembly (11) where a plurality of parisons of molten plastic are captured in mold cavities (25) in the mold assembly, and a blow station assembly (13) where the parisons are blown to form a molded workpiece (31). The mold assembly then opens which causes a flash removal assembly (57) to remove a waste flash portion (55) from a bottom portion (31a) of the workpieces. The bottom of the workpieces are then engaged by the vertically moveable suction cups which lower the workpieces to a position adjacent to a conveyor (117). The horizontally moveable suction cups then engage a side portion (31c) of the workpieces to move the workpieces to the conveyor. The mold assembly preferably provides for up to four cavities which are serviced by a corresponding number of vertically and horizontally moveable suction cups.
Patent EP-0541922-A2 (EP)
Inventor: KEESMANN TILL
IPC: F01L1/00
Filed: 1992-09-04
Abstract: In the catalytic afterburning of the exhaust gases of an internal combustion engine the exhaust gases are measured in the separate pipes assigned to the individual cylinders in phase with the combustion cycle and the associated cylinders individually controlled as a function of the measured values obtained. <IMAGE>
Patent EP-0539819-A2 (EP)
Inventor: ADAMS STEFAN DR
IPC: C08G18/50
Filed: 1992-10-17
Abstract: The invention relates to highly reactive polyoxyalkylenepolyols prepared by oxalkylation of an initiator molecule containing at least 2 reactive hydrogen atoms and at least one tertiary amino group bonded via a spacer bridge, which preferably comprises an alkylene radical having at least 3 carbon atoms, by means of at least one alkylene oxide, preferably ethylene oxide and/or 1,2-propylene oxide, to a process for the preparation of these polyoxyalkylenepolyols, and to their use for the preparation of compact or cellular, preferably flexible, polyisocyanate polyaddition products.
Patent EP-0554568-A2 (EP)
Inventor: TIBBITTS GORDON A
IPC: E21B10/46
Filed: 1992-12-29
Abstract: A cutter for a rotating drag bit which has a cutting face formed from a plurality of polycrystalline diamond compact (PCD) elements (16,18). The elements can be of varying thickness and/or varying hardness to provide a cutting edge having a nonuniform wear pattern. Also provided is a cutter which includes two layers of PCD (56,54) elements. The PCD elements can be of varying thickness and/or hardness to provide a cutter which presents a cutting edge having a wear ratio which varies with cutter wear. Also provided is an impact cutter (116) having a cutting surface (122) formed from one or more layers of PCD elements.
Patent EP-0501551-A2 (EP)
Inventor: O'CONNELL LITTERAL MARY
IPC: H05K3/28
Filed: 1992-02-11
Abstract: Related operations are performed on workpieces (81), e.g., coating and curing circuit boards, of different types in random order in assembly-line fashion on a rotary table (31) of an apparatus (30) under programmed control. The table (31) is rotated stepwise to move successive sections (32) thereof from a load-unload station (36) at which the respective workpieces (81) are loaded and unloaded in random order, to a sensing station (37) at which the type and orientation of the workpiece (81) is sensed, next to an initial work station (38) at which initial work, e.g., coating, is performed on the workpiece (81) in dependence upon its type and orientation as previously sensed at the sensing station (37), then to a subsequent work station (39) at which related subsequent work is performed on the workpiece (81), e.g., curing of the coating, and, in turn, back to the load-unload station (36) to complete a cycle. The workpiece (81) is either changed in orientation on the table section (32) for a repeat cycle to perform further work thereon or is replaced by another workpiece (81) in random order.
Patent EP-0496531-A2 (EP)
Inventor: YAMASHITA AKIO
IPC: G06K9/20
Filed: 1992-01-16
Abstract: An object of the invention is to precisely detect objects from a document image in layout analysis on the basis of a model with minimal information given to the model. Another object is to sufficiently cope with changes in position and size of the objects with a single model. 
     A model contains data on spatial relationships of objects, data indicative for each of the objects of whether its existence on a page is mandatory or not, data for each of the objects corresponding to terminal nodes on the number of included character strings, and data for each of the objects corresponding to intermediate nodes on the number of immediate successors. From a document image are extracted not only character string regions 1 to 7 but also separators segmenting the image into objects and sub-separators treated as candidate boundaries. Labels indicative of object names are assigned to the character strings 1 to 7 by using the separators and sub-separators as constraints.
Patent EP-0525928-A2 (EP)
Inventor: LANDSBERGER DAVID
IPC: B01L9/06
Filed: 1992-02-26
Abstract: A plurality of test tube racks are disposed side by side and coupled together at their opposite sides via clamps to form a modular test tube rack arrangement. A handle or handles engage(s) the clamps to provide a balanced pivot handle arrangement for transporting a modular set of connected racks.
Patent EP-0550969-A2 (EP)
Inventor: MIZUTANI YOSHITAKA
IPC: B42D15/10
Filed: 1992-12-01
Abstract: It is an object of the present invention to provide an IC card in which a sub-frame for fixing a connector by holding it between a main frame and the sub-frame is made difficult to separate, and the engagement between these parts is facilitated. 
     Of a connector supporting part 20 of a main frame 2 and a sub-frame 30, both of which receive holding parts 1c of a connector 1, the connector supporting part 20 has barrier parts 8 each of which has a height of half or more that of the holding parts 1c and which are respectively formed on recesses 20b thereof so that the recesses 20b on which the barrier parts 8 are formed receive the force applied in the direction along the bonded surfaces of the connector supporting part 20 and the sub-frame 30. Tapered surfaces are respectively provided at the edges of each of the barrier parts 8 and the holding parts 1c of the connector 1 so that these parts can be easily engaged with each other at regular positions even if there is a position deviation in each of the parts.
Patent EP-0546958-A2 (EP)
Inventor: INADA HIROSHI
IPC: H01L39/22
Filed: 1992-12-14
Abstract: A method for patterning an oxide superconductor thin film, comprising a step of forming a SiO₂ layer on the oxide superconductor thin film, patterning the SiO₂ layer so as to form the same pattern as that of the oxide superconductor thin film which will be patterned, etching the oxide superconductor thin film by using the patterned SiO₂ layer as a mask, and removing the SiO₂ layer by using a weak HF solution, a buffer solution including HF or a mixture including HF
Patent EP-0562607-A2 (EP)
Inventor: TABATA KOUJI ASAHI GLASS COMPA
IPC: H01Q1/12
Filed: 1993-03-25
Abstract: A diversity glass antenna for an automobile, wherein a dipole antenna is provided on a glass plate of a window of an automobile, a single pole antenna is provided at a part other than the glass plate and a stronger one of receiving signals of the dipole antenna and the single pole antenna is selected and employed, or, a diversity glass antenna for an automobile, wherein a single pole antenna is provided on a glass plate of a window of an automobile, a dipole antenna is provided at a part other than the glass plate and a stronger one of receiving signals of the dipole antenna and the single pole antenna is selected and employed.
Patent EP-0568837-A2 (EP)
Inventor: DECKER RAINER DR
IPC: G07C5/00
Filed: 1993-04-08
Abstract: The invention relates to a device for identifying a substance located in a solid or fluid container by means of a code carrier, the code signal of which is detected by an evaluating device for deriving an enable/inhibit signal for a filling or emptying process of the solid or fluid container. To obtain an inexpensive and reliable implementation of such a device, the code carrier is constructed as transponder which can be read or loaded via an inductive coupling device integrated in the filling hose. As an alternative, the transponder identifying the tank content can also be replaced by a computer controlled device emulating the behaviour of the transponder which, apart from more flexible possibilities of use, also provides for a more extensive bidirectional data transfer. Another embodiment which does not require an inductive coupling via the filling hose requires computer systems which are similarly designed on both sides and which in each case have a reading device for transponders and are connected to one another on-line or off-line via an additional data link. In this case it is sufficient to identify each connecting hose with reading transponders on both sides in order to achieve the object of reliable mixing protection. <IMAGE>
Patent EP-0568963-A2 (EP)
Inventor: DANGSCHAT RAINER DIPL-ING FH
IPC: H04N5/655
Filed: 1993-05-03
Abstract: The invention relates to a chassis for a television signal receiver which exhibits a power supply device arranged on a main board (1), a tuner, a control device and a device handling central signal processing of the television signal receiver. This device is arranged on a central board which, in comparison with the main board, has a smaller area and is arranged parallel to the main board above the latter. The area of the main board which is located underneath the central board is provided with shielding. The essential advantage of such a chassis consists in its flexibility with regard to the centralised signal processing. <IMAGE>
Patent EP-0600408-A2 (EP)
Inventor: NAKANO FUMIO
IPC: H04L7/00
Filed: 1993-11-29
Abstract: A clock synchronizing apparatus for use in a digital automobile telephone apparatus has a receiver, a clock synchronizing circuit, a timing control circuit, a multiplexer/demultiplexer, and a level comparator. The receiver detects the level of an electric field of a received radio wave. The clock synchronizing circuit selectively outputs a phase-corrected clock signal reproduced from the received wave or a free-running clock signal. The level comparator compares the detected level of the electric field with a predetermined threshold and controls the clock synchronizing circuit to select one of the phase-corrected and free-running clock signals in response to the result of comparison. Specifically, the level comparator controls the clock synchronizing circuit to output the phase-corrected clock signal if the detected level of the electric field is in excess of the predetermined threshold, and to output the free-running clock signal if the detected level of the electric field is equal to or less than the predetermined threshold.
Patent EP-0605054-A2 (EP)
Inventor: JOHNSON BRIAN C
IPC: G06F15/80
Filed: 1993-12-24
Abstract: Video display apparatus having multiple processors for operation in parallel, each processing a respective complete video image in the sequence of video images (fields or frames) which form a video picture, the processing being in accordance with a selected signal processing algorithm. The algorithm may be one which simulates a signal processing circuit design which is to be evaluated, so that the effect of changes in circuit design can be displayed in real time. The signal data for each of the sequential video images is assembled into data packet in successive equal time slots, which are transmitted downstream on a data bus along which are a succession of data processors. The headers of the packets for a given image identify a serially corresponding processor to which such image is assigned, and such packets are processed by the assigned processor in accordance with the selected algorithm. If the processing time of each processor corresponds to the time period of N images, then by using N processors the nth processor will have completed processing of the nth complete image by the time of arrival of the (N + n)th image. Each series of N images can therefor be cyclically assigned to the series of processors, and are processed in parallel in real-time. Provision is made for inter-processor communication when the algorithm has temporal effects on the video picture which necessitate FIR or IIR filtering in order to display such effects.