baber/WOPTO huggingface dataset:
Patent EP-0450159-A2 (EP)
Inventor: LUSTIG BERNHARD DR RER NAT
IPC: G11C11/401
Filed: 1990-12-04
Abstract: The invention relates to a DRAM cell field architecture, in which, in each individual memory block, bit switches (5 to 12) are used to select in each case from a plurality of bit line pairs one bit line pair (BLj, BLj+2), and of the bit line pairs respectively selected in each memory block in turn only the bit line pairs of the selected memory block are switched through to the superposed bit lines (IOk to IOk+3). The superposed bit lines may in this case run together with the superposed bit switch lines (CSLk to CSLk+3), driving the bit switches, on a single, for example the second, metallisation level, thereby better utilising the said level. Due to the invention, depending on the required degree of parallelism, it is possible to save interpreters on account of the superposed bit lines, retaining the advantage in individual access of a short access time with moderate power consumption. <IMAGE>
Patent EP-0438711-A2 (EP)
Inventor: JANSEN MARTIN PROF DR
IPC: C08G77/62
Filed: 1990-12-13
Abstract: The invention relates to novel polysilazanes in which the silicon is tetracoordinated by nitrogen, to their preparation, to their conversion to silicon nitride-containing ceramic materials, and to the preparation of these materials. To prepare the polysilazanes, monomeric aminosilanes of the formula Si(NHR)4 and cyclic silazanes of the formula -(NR-NR'Si-NR'')- are polymerised by thermal treatment or by treatment with strong Lewis bases. The polysilazanes can then be pyrolysed to give silicon nitride-containing ceramic material. The polysilazanes according to the invention are soluble in conventional aprotic solvents.
Patent EP-0436247-A2 (EP)
Inventor: AKYLAS VICTOR
IPC: G11C17/14
Filed: 1990-12-13
Abstract: A programmable circuit for encoding identification on circuit dice is disclosed which utilizes a MOSFET or IGFET capacitor structure as a binary information storage bit. A gate of the MOSFET or IGFET acts as a first voltage plate of the capacitor, while a source and drain are both connected to a second voltage and act as second voltage plates of the capacitor. Normally, an open circuit is present between the gate and the source and drain, however, when a programming high voltage is applied to the gate, the capacitor structure physically breaks down and a conduction path is formed between the gate and the source or drain. The presence or absence of this conduction path enables the MOSFET or IGFET capacitor structure to act as a binary bit. Read circuitry senses the presence or absence of the conduction path, and a multiplexer can be employed to connect the read circuitry to a plurality of similar structures sequentially. Protection circuitry is provided to prevent the read circuitry from being damaged by the programming voltage.
Patent EP-0383526-A2 (EP)
Inventor: VOGELGESANG PETER J C O MINNES
IPC: G11B11/10
Filed: 1990-02-13
Abstract: An apparatus (10) for providing a bias magnetic (18) field coincident with the read/write laser (15) in a magneto-optic recording system is disclosed, with special utility for systems wherein the thickness or configuration of the media (28) necessitates a functioning bias magnet (18) being located on the same side of the media (28) as the read/write laser (15).
Patent EP-0389301-A2 (EP)
Inventor: KEY MARC E
IPC: G01N33/563
Filed: 1990-03-23
Abstract: Methods and a reagent complex suitable for attaching detectable signals to specific-binding reagents, the complex comprising a first unlabelled antibody, wherein the first antibody has free specific-­binding affinity for an analyte or an analyte-specific binding reagent; and a second antibody having specific-­binding affinity for an Fc region of the first antibody, the second antibody being bound to the Fc region to form the complex and being labelled with a detectable signal.
Patent EP-0392781-A2 (EP)
Inventor: ISHIDA SHINICHI C O CANON KABU
IPC: H04N1/405
Filed: 1990-04-09
Abstract: There is provided an image processing apparatus for digitizing image data, comprising: an input unit to input luminance data; a data converter to convert the luminance data into density data; a mode selector to select a photograph mode or a character/photograph mode; a correction circuit to correct the density data on the basis of the mode selected by the selector; and a processor for digitizing the corrected density data by a digitizing method of the density preservation type such as an error dispersion method. When the character/photograph mode is selected, the correction circuit converts the density data of a predetermined value or less into white data and also converts the density data of a predetermined value or more into black data. With the apparatus, even for an image in which characters and photographs mixedly exist, an image of a high resolution in the character portion and a high gradation in the photograph portion can be regenerated. The generation of particle-like noises in the highlight portion of the image can be prevented by selecting the character/photograph mode.
Patent EP-0398523-A2 (EP)
Inventor: PATEL CHANDRAVADAN N
IPC: G06F13/28
Filed: 1990-04-25
Abstract: A device for simultaneous data input and output and execution support in digital processors including a plurality of controllable input and output ports (6,8,12) for inputting and outputting data from the device, a data cache memory (10) which is selectively connectable to each of the plurality of input and output ports (6,8,12) and a controller (20) for controlling the plurality of input and output ports (6,8,12) and the data cache memory (10) for effecting a transfer of data between any of the plurality of input and output ports (6,8,12) or the data cache memory (10).
Patent EP-0408295-A2 (EP)
Inventor: KACIAN DANIEL LOUIS
IPC: C12N15/09
Filed: 1990-07-10
Abstract: Methods of synthesizing multiple copies of a target nucleic acid sequence autocatalytically under conditions of substantially constant temperature, ionic strength, and pH are provided in which multiple RNA copies of the target sequence autocatalytically generate additional copies. These methods are useful for generating copies of a nucleic acid target sequence for purposes which include assays to quantitate specific nucleic acid sequences in clinical, environmental, forensic and similar samples, cloning and generating probes.
Patent EP-0383719-A2 (EP)
Inventor: DOLEV MOSHE
IPC: A45D26/00
Filed: 1990-02-14
Abstract: The motor-powered depilatory device (10) for removing skin hair is provided in a compact, efficient, hand-held unit, based on the operation of an axially rotatable hair-plucking element (30) provided as a plurality of discs (36) adjacently coupled in column form. By provision of a central spine comprising a pre-tensioned spring (41), the discs (36 ) are maintained adjacent one another under tension, while the column is bendable. When rotated axially at one end, the hair-plucking element (30) transfers the rotation via rotational coupling of the adjacent discs (36) in the column. Thus, even if the column is bent in an arched configuration, the rotational motion is transferred across its entire length. Preferably, the rotationally-coupled discs (36) are made of relatively rigid plastic material, and are mechanically coupled by a set of tab-­like projections (38) on each disc surface, which engage matching recesses in adjacent discs (36). Alternatively, adjacent discs (36) are made of a soft material with a high friction coefficient and are rotationally coupled by friction between them. The arched configuration of the hair-plucking element (30) provides spaces (42) between adjacent discs (36) on a convex side, and hair trapped in these spaces (42) is plucked when they close upon rotation of the hair-plucking element (30) toward its concave side.
Patent EP-0392968-A2 (EP)
Inventor: SCHNEIDER ROY W
IPC: B64C11/30
Filed: 1990-04-10
Abstract: A ground mode pitch position logic and control is shown and described in this invention. A method for scheduling and limiting the pitch actuator reference signal in accordance with the actuator commanded schedule, propeller overspeed and propeller underspeed.
Patent EP-0439022-A2 (EP)
Inventor: BURKE TIMOTHY
IPC: H04L12/24
Filed: 1991-01-09
Abstract: A communication system serving a plurality of radio units in a frequency blocked area includes a remotely controlled and remotely reconfigurable network of radiating coaxial conductors. The radiating coaxial conductors (16), along with associated amplification devices (20), are arranged to provide radio communication to an area around the network using radio frequency radiation released by the plurality of radiating cables. Remote control to the system is provided by a control station (18) which transmits control data to the amplification devices through the network of radiating coaxial conductors. The amplification devices are arranged to control the radiating coaxial conductors in such a way that, in response to receiving the control data, the radiating coaxial conductors may be reconfigured to overcome faults occurring in the system.
Patent EP-0462357-A2 (EP)
Inventor: PROF DR TAEGER KARL HEINRICH
IPC: A61F2/36
Filed: 1991-02-09
Abstract: Femur part of a hip joint endoprosthesis with a shaft which is designed as a hollow body and which has several openings on the frontal and dorsal sides, which openings are connected to the hollow cavity of the shaft, circular openings alternating with oblong openings. The femur part also has a neck on which either a spherical head is formed integrally, or on which a section is formed for receiving a spherical head. The collarless end section at the transition to the neck is of solid design, and a bore is formed in the solid end section laterally of the neck, the axis of this bore coinciding approximately with the axis of the hollow cavity of the shaft. <IMAGE>
Patent EP-0450316-A2 (EP)
Inventor: BAUER HELMUT
IPC: H03F3/60
Filed: 1991-03-02
Abstract: In a high-frequency transistor power amplifier having several power transistors arranged in a circle, the input terminals of the transistors are connected via separate input matching circuits and a distributor circuit to a common input whilst the output terminals of the power transistors are directly combined in a common output terminal without interconnecting matching circuits, which is connected to a single output matching circuit common to all power transistors.
Patent EP-0492036-A2 (EP)
Inventor: BANERJEE SHOIBAL
IPC: C03C25/305
Filed: 1991-03-28
Abstract: Pelletized composition of certain glass fiber-containing fluorocopolymers made by wire-coating molten fluorocopolymer onto a continuous glass fiber to a desired thickness and cutting or chopping the coated glass fiber into pellets of the desired length can be injection-molded into articles having excellent tensile properties and high heat distortion temperatures.
Patent EP-0468156-A2 (EP)
Inventor: ROEHM GUENTER HORST
IPC: B23B31/12
Filed: 1991-05-16
Abstract: In the body (1) of the drilling chuck, the chuck jaws (3) are arranged in guide bores (5) which converge towards the front in a direction inclined relative to the axis (4) of rotation and emerge at the rear in openings (6) on the circumferential surface of the chuck body (1). An adjusting ring (2), coaxial to the axis (4) of rotation and mounted on the chuck body (1) in such a way as to be rotatable and axially fixed, serves to adjust the chuck jaws (3) and has an adjusting thread (7) which meshes with a tooth row (8) on each chuck jaw (3). On the outside of the chuck body (1), a gripping ring (13) is arranged axially in front of the adjusting ring (2). The gripping ring (13) is connected to the chuck body (1) in such a way that it cannot be rotated and is axially fixed. On the outside, the gripping ring (13) forms gripping surfaces (14) where the hand can grasp and take a firm hold of the drilling chuck during actuation of the same. 
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Patent EP-0464383-A2 (EP)
Inventor: ALEXEEVICH ARKHIPOV BORIS
IPC: H01J37/077
Filed: 1991-06-04
Abstract: A plasma compensation cathode comprises a casing (1) accommodating coaxially with its outlet hole (2) a hollow holder (3) and a thermal emitter (4) with a central passage (5), a layer (10) of material chemically inert at high temperatures to the materials of the holder and emitter being interposed therebetween. The central passage (5) is blind at the side of admission of gas, and is communicated with the interior of the holder (3) by way of a through passage (8) made in the wall of the thermal emitter (4) so that its axis intersects the axis of passage (5), and longitudinal grooves (9) made in the side surface of the thermal emitter (4) at the location of the inlet holes of the through passage (8). The holder (3) is embraced by heater (6) having a support ring (7) positioned in its midportion and secured in an insulation sleeve (18) separating the heater (6) from the coaxial heat screens (11) interconnected successively to define a sealed cavity (14) wherethrough the interior of the holder (3) communicates with the gas feeding pipe (13) secured in the casing (1) through the support insulator (17). Interposed between mechanical filters (16) and between holder (3) and pipe (13) is a getter (15).
Patent EP-0462613-A2 (EP)
Inventor: ONISHI MASASHI
IPC: H01S3/17
Filed: 1991-06-20
Abstract: Optical functioning glass which enables light amplification at 1.3 µm band or enhances an amplification efficiency, and a fiber amplifier using the same are disclosed. 
     The optical functioning glass to be used for an optical fiber (30) has Nd³⁺ added thereto as an activator and rare earth ions having an absorption band near 1 µm added thereto as a promoter. The light emission of Nd³⁺ at 1.06 µm may be absorbed by absorbing agent such as Pr³⁺, and a probability of light emission of Nd³⁺ at 1.3 µm no be enhanced by the promoter such as Tb³⁺. The optical fiber (30) propagates a signal light having a wavelength of 1.3 µm, a laser light source (32) generates an excitation light, and a coupler (33) directs the excitation light from the laser light source 32 to the optical fiber 30. In this manner, an efficiency of the stimulated emission of Nd³⁺ caused by the signal light propagated through the optical fiber is enhanced and a gain of the light amplification at 1.3 µm is increased.
Patent EP-0467328-A2 (EP)
Inventor: SUZUKI MASAO
IPC: G02B27/01
Filed: 1991-07-17
Abstract: A holographic head up display apparatus comprising: a luminous display means for emitting visible light; and a reflective holographic diffraction grating installed on an optical path introducing the visible light from the luminous display means to driver's eyes, wherein the reflective holographic diffraction grating has a diffraction-and-reflection characteristic having at least two-wavelength selectivity for diffracting and reflecting in the same direction at least two wavelength components contained in the visible light which is emitted from the luminous display means. In the present device, the brightness of the displayed virtual image is increased to the same extent when the wavelength band is broadened but without vignette of image due to chromatic aberration which is generated when a reflective holographic diffraction grating having a single wavelength selectivity diffracts and reflects visible light in the same direction.
Patent EP-0479098-A2 (EP)
Inventor: TAKAHASHI HIROYUKI
IPC: G11C7/06
Filed: 1991-09-24
Abstract: A random access memory device memorizes data bits in memory cells (M11 to Mmn) each implemented by field effect transistors (q11/Q12) arranged in a flip-flop configuration, and one of the data bits are read out to a pair of data signal lines (DB11/DB12) in the form of a small difference in voltage level for increasing the magnitude of the small difference by means of a high-speed sense amplifier unit (26), wherein the small difference is stepped down through a pair of diode elements (D11/D12) so that a pre-amplifying circuit (26a) implemented by bipolar transistors (Q13 to Q16) firstly increases the small difference with voltage levels at the anodes and cathodes of the diode elements, then the differential amplifying circuit (26b) implemented by bipolar transistors (Q17/Q18) starts on increasing a differential voltage level at the output nodes of the pre-amplifying circuit so that the differential amplification is completed within a relatively short time period.
Patent EP-0443693-A2 (EP)
Inventor: HULSING RAND H
IPC: G01R23/10
Filed: 1988-08-08
Abstract: The invention relates to a device and method for measuring the frequency of an input signal by measuring the number of cycles of the input signal (I) that occur in a sample interval time between first and second sampling times (t n-1 )and (t n ). An integer counter means (31) produces from a sensed characteristic of the input signal (I) an integer signal (N) representing a whole number of cycles of the input signal that occur in the sampling interval. Fraction measurement means (10) determines the time of occurrence of each sampling time (t n ) in a time period that extends from a first measurement time (t a ) corresponding to the input signal characteristic immediately preceding that sampling time (t n ) to a second measurement time (t b ) corresponding to the input signal characteristic immediately succeeding that sampling time (t n ). The fraction measurement means (10) counts clock signals (CLK) between (t a ) and (t n ) and between (t a ) and (t b ) and provides phase corrected count signals (X nc ) and (Y nc ) respectively.
Patent EP-0498087-A2 (EP)
Inventor: SANDERSON ROBERT ANTHONY
IPC: H01M8/04
Filed: 1991-12-04
Abstract: A fuel cell generation system comprises a cell stack (1) consisting of a plurality of cells, said cell having a fuel electrode, an oxidizer electrode, and an electrolyte layer located between said both electrodes, a fuel cell main body having a plurality of cooling plates (18) for absorbing heat generated in said cell, said plate being located between said cells, and a cooling unit for supplying a coolant through said cooling plate. The system further provides a reference voltage source (35) for supplying a reference voltage and a determining unit for comparing an output voltage (34) of at least one cell located at the upper portion of the cell main body with the reference voltage and determining if an abnormal state occurs in the cooling unit based on the comparing result. The reference voltage is picked up out of a part of the cell stack.
Patent EP-0438281-A2 (EP)
Inventor: INANAGA KIYOFUMI C O PATENTS D
IPC: H04R5/033
Filed: 1991-01-16
Abstract: An acoustic signal reproducing apparatus for reproducing acoustic signals by headphone devices (2) is disclosed. The left channel and right channel acoustic signals are provided by a device (23) for processing the acoustic signals with constant transmission characteristics from an imaginary sound source to both of the listener's ears. The left channel and right channel acoustic signals, processed in this manner by the device (23), are provided by an acoustic signal processing device (21) with a level difference and time difference consistent with changes in orientation of the listener's head (M).
Patent EP-0449508-A2 (EP)
Inventor: SAKAMOTO TSUTOMU C O INTELLECT
IPC: G02F1/13
Filed: 1991-03-21
Abstract: A drive circuit for a liquid crystal display for displaying a picture in accordance with picture signals applied thereto. The drive circuit includes a plurality of column lines and a plurality of row lines. A liquid crystal display portion includes picture elements coupled to the column lines and the row lines and arranged at intersections of the column lines and the row lines. A column line driver coupled to the column lines supplies the picture signals to the picture elements. A row line driver coupled to the row lines controls the application of the picture signals to the picture elements. The row line driver simultaneously drives at least two row lines during each successive horizontal line period of a first field such that the picture signals are supplied to the picture elements in a first manner. The row line driver further simultaneously drives at least two row lines during each successive horizontal period of a second field such that the picture signals are supplied to the picture elements in a second manner.
Patent EP-0476967-A2 (EP)
Inventor: UEMURA YOSHIAKI
IPC: B60C11/03
Filed: 1991-09-17
Abstract: A pneumatic radial tyre having at least two tread grooves provided in the circumferential direction of the tread, wherein an interaction distribution diagram showing the state of interference between the edges of tread grooves and the edges of rain grooves is approximately by waveforms and expanded into a Fourier series, with the value of the first order amplitude being reduced to a low level whereas the value of the second order amplitude or a higher order amplitude is enhancing.
Patent EP-0497050-A2 (EP)
Inventor: HASEGAWA TSUNAO
IPC: G11B20/10
Filed: 1991-12-05
Abstract: A PCM digital audio signal playback apparatus includes means provided for extracting (1) from a digital audio signal (IN) read out from a recording medium an original signal component ranging lower than 1/2 of its sampling frequency fs, producing (2, 3, 4, 5) a harmonic from the original signal component, extracting (3) a harmonic component ranging higher than fs/2 from the harmonic, and adding (8) the harmonic compondent to the original signal component. Accordingly, a high frequency carrying signal, e.g. an impulse, is processed withou causing ringing in the waveform response.
Patent EP-0453436-A2 (EP)
Inventor: LEITINGER HANS-PETER
IPC: B23D61/12
Filed: 1991-04-11
Abstract: A cutting device comprises a band-saw blade (1, 1'; 21, 22; 25, 26, 29) with a back area (4, 4'; 29, 34) and a front tooth area (2, 2'; 31, 33), the thickness of which is less than the band thickness in the back area (4, 4'; 34). The cross-section of the band-saw blade (1, 1'; 21, 22, 25, 26, 29) is designed to be symmetric with regard to the centre axis for a centre cut. Lying between the tooth area (2, 2') and the back area (4, 4'; 29, 34) is a transition area (3, 3'), with or without lateral concave flanks which lie within imaginary wedge surfaces. For the lateral cutting-off of boards from squared timber, the band-saw blade (21, 22, 25, 26, 29) has teeth (31, 33) which are bevelled only in one direction so that the teeth in the endless band-saw blade converge towards one another. In the cutting device, the teeth (31, 33) are directed towards the material to be cut, e.g. the squared timber (20). During the feed, a cut-off board (23, 24, 27, 28, 32) automatically runs laterally out of the feed path. The cross-sectional shape produced by grinding or rolling comprises a hard-alloy refinement (Stellite facing) which is applied by welding. The cut leads to the material to be cut being split up into two boards which run past the tooth flanks and in the transition area without contact. Furthermore, the cutting device can have guide wedges (12, 13, 30) following the band-saw blade. <IMAGE>