baber/WOPTO huggingface dataset:
Patent EP-0514857-A2 (EP)
Inventor: DORN REIMUND DR
IPC: G02F1/21
Filed: 1992-05-20
Abstract: An optical switch serves the purpose of relaying in a specific, selected direction a wavetrain irradiated onto it. Suitable as part of an optical switch is a light-transmitting material in which by applying an electrical field a three-dimensional diffraction structure is generated by means of which the direction of the wavetrain can be varied. An optical switch according to the invention has a material with optically nonlinear characteristics, in which the three-dimensional diffraction structure is stored. The material forms at least one single layer (2) which extends above a substrate (1). Electrodes (3 - 6) are present; the diffraction structure in the layer (2) can be varied by an electrical field which can be applied to the electrodes. A portion of the wavetrain irradiated onto the layer (2) is consequently deflected in accordance with the strength of the electrical field present between the electrodes (3 - 6). <IMAGE>
Patent EP-0541029-A2 (EP)
Inventor: YANAGIHARA NAOFUMI
IPC: H04N19/126
Filed: 1992-11-02
Abstract: Methods and apparatus are provided for encoding a digital video signal provided as a plurality of blocks of video data. The video data in block form are subjected to discrete cosine transformation (6) to yield respective DC components and respective pluralities of AC components. The plurality of AC components are variable length encoded (9) and, in certain embodiments, the DC components and variable-length encoded AC components of each block are arranged in a data stream so that the DC components precede the variable-length encoded AC components and relatively lower frequency variable length encoded AC components precede relatively higher frequency ones thereof. Error correction codes (15) for the transformed data also are supplied. In certain embodiments of the invention, the transformed video data are arranged as a sequence of fixed length symbols so that the beginning of each of a plurality of blocks of transformed data corresponds with the beginning of a respective symbol within the sequence. In addition, an address indicating the position of a subsequent block is included within the sequence in association with a preceding block.
Patent EP-0555543-A2 (EP)
Inventor: RECKERMANN MICHAEL
IPC: G01N1/22
Filed: 1992-12-11
Abstract: The condensate separator is fed with waste gas to be analysed. The waste gas enters through a cover (2) and a small tube (8) into a hollow-cylindrical housing (1). It is directed against a gas cooler (10) which causes moisture to be separated from the waste gas in the form of condensate. The condensate is absorbed by a condensate sump (4). Depending on its saturation with condensate, the condensate sump (4) moves away from the cover (2) in an axial direction, counter to the effect of a compression spring (5). Between one measuring point (20) on that end face of the condensate sump (4), which faces the cover (2), on the one hand, and a selectable measuring point (21) in the housing (1), on the other hand, a monitoring device (22) is provided which emits a signal, if the condensate sump (4) is positioned between said two measuring points. <IMAGE>
Patent EP-0548949-A2 (EP)
Inventor: HAMANAKA NOBUYUKI
IPC: C07D521/00
Filed: 1992-12-23
Abstract: A fused benzeneoxyacetic acid derivative of the formula (I):
     wherein
Patent EP-0500293-A2 (EP)
Inventor: ALLEMAND CHARLY DANY
IPC: G01N21/95
Filed: 1992-02-17
Abstract: The present invention relates to a method and apparatus for detecting particles on a surface of an object, such as a virgin or patterned semiconductor wafer, ceramic tile, or the like. In one embodiment, an apparatus (11,41) is provided in which a scanning beam of laser light (15) is brought to focus as an arcuate scan line (23,89) on a surface of the object(s) at a grazing angle (a) of incidence using an off-axis hypertelecentric mirror (61). A pair of light detectors (25-1,25-2,67-1,67-2) are positioned at a meridional angle of about 30 degrees and at an azimuthal angle of about 4 degrees to measure forward scattered light from the surface. The object(s) is then moved translationally so that the beam (15) can scan another line of the surface. A light trap is provided to trap light that is reflected by the surface, and a series of masks (103-1,103-2,105-1 to 1005-4 and 101) are provided to mask light which is scattered by the hypertelecentric mirror (61) and, in the case of patterned objects, light which is diffracted by the pattern imprinted on the object(s).
Patent EP-0546943-A2 (EP)
Inventor: GALLUSSER DAVID OTIS
IPC: H01C13/02
Filed: 1992-12-09
Abstract: A resistance stack for terminating a data bus cable includes a stack of resistor chips (3), each having two conductively plated through holes (4). The resistance elements are kept in alignment and electrically connected to leads (1) of the data bus cable by elongated members extending through the through holes. The elongated members may be discrete conductive rods, or soldered and pre-tinned leads of the cable. To facilitate assembly, solder preforms (5) are provided between each of the resistor chips. The resistance stack is enclosed in a package which includes a cylindrical shell (10), a cable clamp (11), a cable strain relief member (15), and an end cap (13) including a track (14) for accommodating extensions of the elongated members beyond the last resistor in the stack, thereby aligning the elongated members. The package may be both electrically shielded and environmentally sealed.
Patent EP-0557943-A2 (EP)
Inventor: ANDO HIROYUKI
IPC: C08F290/00
Filed: 1993-02-24
Abstract: Disclosed herein is a curable resin composition comprising (A) a curable phosphazene compound, (B) a multifunctional (meth)acrylate-based compound such as dipentaerythritol hexaacrylate and (C) a crosslinkable compound having a cure shrinkage of 6% or less such as (meth)acrylate modified polymer which is a product modified by epoxy. This resin composition provides a cured resin film having a high rate of cure, tractable to coat in a great thickness and further excellent in surface hardness, transparency and weathering resistance.
Patent EP-0564799-A2 (EP)
Inventor: STRAUB ROLAND
IPC: B01D39/08
Filed: 1993-02-26
Abstract: A multilayer filter material is described having a coarse filter, a fine filter and a support, which are provided in this sequence in the direction of flow through the filter material. The support is a spun nonwoven web having a weight per unit area of 10 to 100 g/m<2>, a thickness between 0.5 and 3 mm and an air permeability of 500 to 5000 l/m<2> . sec at a pressure difference of 10 mm water gauge. The support forms a spun underlayer for the fine filter. The fine filter is a melt-blown microfibre nonwoven web of quasi-endless fibres having a mean fibre diameter of 0.5 to 15  mu m and has a weight per unit area of 0.5 to 10 g/m<2>. The coarse filter is a nonwoven web of synthetic and/or natural fibres having a weight per unit area of 50 to 300 g/m<2> and a thickness between 1 and 20 mm.
Patent EP-0565003-A2 (EP)
Inventor: YAMAMOTO MAKOTO
IPC: G11C11/56
Filed: 1993-04-02
Abstract: The present invention has an object to provide a memory device for realizing an analog memory or a multilevel memory easy to produce and of small scale circuit. 
     The memory device comprises: a CCD array "Ai" arranged in linear; a refresh circuit "R" connected to a CCD on one end of the CCD array; a shaping circuit connected to a CCD on another end of the CCD array; a feedback line "FL" for connecting an output of the shaping circuit to an input of the refresh circuits; and a topology difference clock line "CL" for transmitting data of the CCD array.
Patent EP-0573932-A2 (EP)
Inventor: RET LUIGI
IPC: H04N5/64
Filed: 1993-06-07
Abstract: The present invention refers to a television equipped with a lamp supplied in alternating current; the main characteristic of the invention consists in that said alternating current is of variable frequency.
Patent EP-0594211-A2 (EP)
Inventor: NAITO HIROYUKI
IPC: C08L83/12
Filed: 1993-10-22
Abstract: An aqueous organosiloxane liquid composition in a homogeneous state is disclosed, which contains (A) aqueous modified organosilicon compound having at least one polyether group, as a side chain or as a terminal group (B) liquid organopolysiloxane, (C) a cross-linking agent, (D) a curing catalyst and, optionally, (E) a filler. This composition undergoes uniform curing, when exposed to the atmosphere of a temperature of up to 300°C, to form a siloxane polymer composition in a form of a film, fibers, a composite structure, a composite sheet or a building material. The composition can also be used as a coating composition or varnish.
Patent EP-0558117-A2 (EP)
Inventor: HILLEN WALTER DR
IPC: G01T1/29
Filed: 1993-02-16
Abstract: The invention relates to a method for generating X-ray images by means of a CCD image pick-up and to an arrangement for carrying out this method. An improved image quality - particularly at high doses and high spatial frequencies - can be achieved by the following steps:   a) generating a first X-ray exposure during a first time interval (T1) which is shorter than the read-out period (Tr) of an image contained in the storage area of the CCD image pick-up, b) transferring the first image generated during the first X-ray exposure in the image area (71; 75) of the CCD image pick-up (7) into its storage area (72; 74) after the first time interval (T1) has elapsed, c) generating a second X-ray exposure immediately after or at a short time interval after the first X-ray exposure during a second time interval (T2) which is short compared with the read-out period (Tr), d) reading the first image out of the storage area (72; 74) and writing the image into a further store (10), e) transferring the second image into the storage area (72; 74) after the first image has been read out, and f) reading out the second image and adding it to the first image stored in the further store (10) for generating the X-ray image.   <IMAGE>
Patent EP-0602699-A2 (EP)
Inventor: WONG STEPHEN
IPC: H03K17/14
Filed: 1993-11-26
Abstract: A current limit circuit for protection of an intelligent power switch includes a series circuit of a sense transistor (3) and a sense resistor (4) coupled to the power semiconductor transistor switch (1) so that the sense resistor current (Is) is a fraction of, and is proportional to, the power transistor current (Ip). A pull-down transistor (6) is coupled to the control electrode of the power transistor switch (1). A feedback circuit including a series connections of a diode-connected transistor (12) and a reference voltage source (14,15) is coupled between the sense resistor (4) and the control electrode of the pull-down transistor (6). The feedback circuit produces a voltage level shift and the circuit provides an accurate limit on the power transistor (Ip) independent of any variations in threshold voltage.
Patent EP-0605921-A2 (EP)
Inventor: AMESFOORT ALFONSUS MARIA VAN
IPC: H04N9/72
Filed: 1993-12-23
Abstract: Known display devices include a video signal processing circuit with a black level setting circuit, which black level setting circuit measures the black level of the video signal, for example, during the field retrace interval by making use of an extra output of the video output stage. 
     However, the measured black level comprises a line-frequency interference component which is caused by a parasitic capacitance in the display tube. 
     The line-frequency interference component is fully compensated for by coupling one side of a secondary winding of a transformer required for the focusing voltage to be generated to a first capacitor, the other terminal of which is connected to the measuring input of the black level setting circuit and by coupling at least a second and a third capacitor across the secondary winding of the transformer.
Patent EP-0565348-A2 (EP)
Inventor: HASHIMOTO MIKIO
IPC: G06F3/033
Filed: 1993-04-07
Abstract: An electronic measuring apparatus is placed on a drawing or other material on which a measuring object is drawn. The apparatus has a main display of a dot matrix liquid crystal display having a touch sensor. A plurality of points corresponding to the measuring object such as a graphic are entered as specific points. A calculating section calculates lengths of a straight line and a curve, an angle between two straight lines, or regional area of a region based on coordinate data of the respective specified points. The calculated results are shown on the main display. With the arrangement, the respective measurings of the length, angle, regional area, and other measuring object are carried out with ease and high accuracy. Moreover, a variety of processings such as unit conversion and scale factor conversion can be carried out only by entering respective specific data.
Patent EP-0568393-A2 (EP)
Inventor: ENGE PER K
IPC: G01S1/04
Filed: 1993-04-30
Abstract: A method of and apparatus for two-way radio meteor scatter communication amongst mobile transceiver-equipped terminals and fixed meteor scatter base terminal(s) that comprises communicating high volume point-to-point inbound information from the mobile terminals to the base terminal(s) and outbound information from the base terminal(s) to particular mobile terminals by radio meteor scatter, and broadcasting outbound information from the base terminal(s) to many mobile terminals by supplemental Loran communications short messages modulated upon Loran radio positional and navigation transmissions.
Patent EP-0578488-A2 (EP)
Inventor: CUMMINGS JOHN G
IPC: H01H19/58
Filed: 1993-07-07
Abstract: First and second self-supporting sheet metal contact plates (104,106) are mounted in an insulating housing (12), in planes perpendicular to the axis of a driver (24) which is rotatable to a series of detented positions. The driver (24) carries first and second contactors (78a,78b) having first and second contact points (96,98) slidably engaging opposite sides of the plates while also having riders (90,92) engaging opposite sides of the first contact plate at all times. The driver (24) carries first and second coil springs (188,190) biasing the contactors (78a,78b) against the plates (104,106). The first and second plates have first and second sectors (120,122) with first and second radial edges (142,144) on opposite sides of a narrow gap (254,256) across which the points are movable at different radially spaced locations. The points break contact substantially simultaneously with the second edge whereby wear due to electrical arcing is distributed between the radially spaced locations. A third contactor (78c) is biased by the second coil spring (190) into sliding engagement with third and fourth contact plates for making and breaking another electrical circuit therebetween. A pinion gear on the driver meshes with and drives a gear rack on a linearly movable vacuum valve for performing vacuum switching functions. The contact plates are clamped between case and cover components of the housing. To facilitate assembly, the first and second plates are initially connected by a narrow temporary web (107,263) and have rectangularly bent flanges with interlocking hooks (330,332) remote from the web for strictly limiting relative movement of the plates. The third and fourth plates have a similar web and hooks.
Patent EP-0596641-A2 (EP)
Inventor: STRAUCH ANDREW M
IPC: H04N1/113
Filed: 1993-10-26
Abstract: The present invention is directed to a precise method of registering plurality of imaging stations (10,12,14,16), so as to form sequential images on a photoreceptor belt (18) in a single pass. A belt hole (23,24) is formed in the photoreceptor belt (18), outside the image area (I₁-I₄), but within the scan of the imager scan line. The scan line is sequentially swept in a transverse direction across the width of the belt (18). As the leading edge of the belt hole (23,24) advances into the sweeping beam, a plurality of beam sweeps will occur while the leading edge is moving through the sweep area. Due to the gaussian illumination of the scanning beam, the exposure at the belt edge gradually increases to a maximum point coinciding with the maximum illumination of the scanning beam. A detector (21,22) is placed beneath the belt (18) to provide a signal representing the exposure level of each scanning beam which crosses the leading edge of the advancing belt hole (23,24). The detectors (21,22) produce a current output representative of the exposure level. The current output is converted into voltage outputs which are then used in an extrapolation process to determine a midpoint for the illumination profile crossing the scan line and, from this, a reference time at which the midpoint of the beam illumination was reached. This reference time is then used to generate a precisely timed line sync signal which is reproducible through each of the imaging stations to produce registration of the first scan line of each image sequence with a very high degree of accuracy.
Patent EP-0560706-A2 (EP)
Inventor: ABENSOUR DANIEL SIMON
IPC: H04Q11/04
Filed: 1993-02-23
Abstract: A terminal adapter interfaces between a Data Terminating Equipment (DTE) and either a Frame Relay (FR) or a Switched Multimegabit Data Service (SMDS) telecommunications network so that the type of network over which the DTE is communicating is transparent to the DTE. The TA performs mapping from one protocol to another so that a native FR DTE can access an SMDS network and so that a native SMDS DTE can access a FR network. The address mapping method performed by the TA uses a parallel table look-up technique which reduces the chance of collision (when two or more addresses hash into the same table entry), eliminates the traditional comparison function to detect a collision, and eliminates the traditional pointer technique when a collision occurs.
Patent EP-0565506-A2 (EP)
Inventor: DENT PAUL W
IPC: H04J13/00
Filed: 1993-04-01
Abstract: Individual information signals encoded with a common block error-correction code are assigned a unique scrambling mask, or signature sequence, taken from a set of scrambling masks having selected correlation properties. The set of scrambling masks is selected such that the correlation between the modulo-2 sum of two masks with any codeword in the block code is a constant magnitude, independent of the mask set and the individual masks being compared. In one embodiment, when any two masks are summed using modulo-2 arithmetic, the Walsh transformation of that sum results in a maximally flat Walsh spectrum. For cellular radio telephone systems using subtractive CDMA demodulation techniques, a two-tier ciphering system ensures security at the cellular system level by using a pseudorandomly generated code key to select one of the scrambling masks common to all of the mobile stations in a particular cell. Also, privacy at the individual mobile subscriber level is ensured by using a pseudorandomly generated ciphering key to encipher individual information signals before the scrambling operation.
Patent EP-0609718-A2 (EP)
Inventor: BAUR RUEDIGER DR
IPC: C08G75/22
Filed: 1994-01-21
Abstract: Cyclic polysulphonediallylammonium salts obtainable by   a) copolymerisation of salts, preferably halides, of monomeric diallylammonium components of the formula (I) with sulphur dioxide or a compound which liberates sulphur dioxide, and <IMAGE>   b) anion exchange, where all or some of the anions, preferably the halide ions, of the diallylammonium components have been replaced by the anions A, where the diallylammonium components have each been cyclised to give a 5- or 6-membered ring and have been bonded to one another via one or more divalent radicals -SO2- to give polymers, where the polysulphonediallylammonium salts have a molecular weight of between 500 and 5,000,000, and where the ratio between the number of diallylammonium components and the number of divalent -SO2- radicals is from 1:0.01 to 1:100, and where A is in each case the stoichiometric anion equivalent of an inorganic anion, of an anion of a heteropolyacid or of a borate of the formula (II) or of an organic anion or of a disulphopyrrolidiniumbetaine of the formula (III), or A is a combination of the above anions, are used, individually or in combination, as charge-control agents in electrophotographic toners and developers employed for copying and duplicating originals and for printing electronically, magnetically or optically stored information or in colour proofing, and as charge-control agents in powders and powder paints (coatings).
Patent EP-0620656-A2 (EP)
Inventor: FENK JOSEF DIPL-ING
IPC: H04B1/40
Filed: 1994-03-28
Abstract: An integrable transceiver for relatively high frequencies with a receiving branch mixer (1), which multiplies a received signal (2) and a carrier frequency signal (3) by one another, with a controlled first intermediate-frequency oscillator (5), which can be switched off by a switching signal (8) and the frequency range of which can be switched by a first range control signal (8), with a demodulator which follows the receiving branch mixer (1) and which is also supplied with the output signal of the first intermediate-frequency oscillator (5) directly and phase-shifted by 90@ and which outputs an output signal (17), with a phase detector device (7) which follows the first intermediate-frequency oscillator (5) and, in turn, controls the latter and the frequency range of which can be switched by a second range control signal (10), with a second controlled intermediate-frequency oscillator (11) which is connected in parallel with the first intermediate-frequency oscillator (5) and which can be switched on by the switching control signal (9), with a transmitting branch mixer (13), one input of which is connected to the outputs of the first and second intermediate-frequency oscillator (5, 11), and to the other input of which the carrier frequency signal (3) is applied, and with a modulator (14) which follows the transmitting branch mixer (13) and which is also supplied with an input signal (15) and which outputs a transmitting signal (16). <IMAGE>
Patent EP-0624989-A2 (EP)
Inventor: UCHIDA HIROFUMI
IPC: H04N9/808
Filed: 1994-05-03
Abstract: Data rates of a first video signal and a second video signal which are significantly different in the data rates are converted to respective predetermined data rates, and both the video signals of one frame are divided into respective numbers of macro block. A ratio of the number of macro block of the first video signal to the number of macro block of the second signal is made to 1:n (n: natural number), and a ratio of the number of pixel in one macro block of a color difference signal of the first video signal to the number of pixel in one macro block of the color difference signal of the second video signal is made to 1:m (m: natural number), a ratio of the data rate of the color difference signal of the first video signal to the data rate of the color difference signal of the second video signal is made to 1:n×m and a ratio of a moving speed of a magnetic tape in the first video signal to a moving speed of the magnetic tape in the second video image is made to 1:n.
Patent EP-0655727-A2 (EP)
Inventor: KAWAMURA KIYOSHI C O YAMAHA CO
IPC: G10C3/16
Filed: 1994-11-29
Abstract: A keyboard musical instrument lowers a key bed (1b) together with a keyboard (2), key action mechanisms (3) and hammer mechanisms (43) in a silent mode, and a stopper mechanism (3000) and a make-up mechanism (5000) cause the depressed keys to actuate the key action mechanisms (43) and damper mechanisms (40) as similar to an acoustic sound mode, thereby allowing a player to feel the key touch usual in a performance without an acoustic sound.