baber/WOPTO huggingface dataset:
Patent EP-0436300-A2 (EP)
Inventor: FLYNN EDWARD JOSEPH
IPC: H01S5/12
Filed: 1990-11-28
Abstract: Lasers for use in multichannel analog optical fiber communication systems (e.g., of the type contemplated for CATV) have to meet very stringent requirements, including high linearity. DFB lasers are advantageously used in such communication systems. Typically only a relatively small percentage of the nominally identical DFB lasers on a wafer meet the specifications. It has now been discovered that the likelihood that a given DFB laser will meet the requirements is substantially increased if the laser comprises means that are adapted for producing a non-uniform photon density in the laser cavity, with the density of photons being larger in the rear portion of the cavity than in the front portion, such that during operation of the laser the gain in the back portion is substantially independent of the laser current, whereas the gain in the front portion is a function of the laser current. Exemplarily, lasers according to the invention have power asymmetry less than about 5. Preferred embodiments are AR-HR lasers with KL in the range 1.6-1.5. Optionally lasers according to the invention have a phase shift located in the back portion of the grating, a split contact, and/or a non-constant mesa width.
Patent EP-0377539-A2 (EP)
Inventor: BESSIN PIERRE
IPC: A61K31/40
Filed: 1990-01-05
Abstract: A composition according to the invention contains, as active principle, at least one 4-aroyl-2-pyrrolecarboxylic acid derivative of general formula I <IMAGE>   The invention also relates to the use of the compounds of general formula I for the purpose of producing a medicinal product effecting in vivo inhibition of phospholipases A2.
Patent EP-0403427-A2 (EP)
Inventor: SCHNEIDER RUDOLF
IPC: B23H7/02
Filed: 1990-06-01
Abstract: The clamping device has a rectangular frame (1), to the longitudinal members (4, 5) of which clamping strips (7, 8, 9, 10) are fastened. Each clamping strip is provided with a plurality of tapped holes (15) which are enlarged to a predetermined nominal diameter. Screw bolts (17) inserted through each hole (15), grub screws (22) screwed into the holes (15), or stop bars (21) of nominal diameter can thereby be used for clamping and positioning the workpieces (16, 19). Owing to the fact that the actual clamping is effected by means of the clamping strips (7, 8, 9, 10), the frame (1) can be held very lightly, since it is freed of all clamping forces. <IMAGE>
Patent EP-0434619-A2 (EP)
Inventor: BIRBAUM JEAN-LUC DR
IPC: C08F246/00
Filed: 1990-12-12
Abstract: o-Hydroxyphenyl-s-triazines containing suitable functional groups are incorporated into polymers by copolymerisation, copolycondensation, copolyaddition or polymer-analogous reaction. The polymers modified in this way have high stability to degradation by light, oxygen and heat. They can also be used as stabilisers.
Patent EP-0381638-A2 (EP)
Inventor: NIKOLAISEN BJARNE H
IPC: H01B17/30
Filed: 1990-01-04
Abstract: An electric conductor bushing, especially for use in distributing plants which are insulated by the aid of an insulating gas (SF₆), and in which the conductor bushing constitutes a tubular insulating body (2) which is designed to pass through a hole in the plant wall (14) and is secured in a gastight manner (6, 13, 15) to wall (14). A first portion of body (2) extending into plant (B) has at least one opening (7) permitting penetration of insulating gas into void (5) inside said insulating body. A bushing conductor (3) extends coaxially through said body and is supported (11) in said first portion and is, additionally, supported in a gastight manner (4) at the extreme end of a second portion of said body which is provided outside (A) the wall (14).
Patent EP-0391888-A2 (EP)
Inventor: VODIUNIG ROBERT DIPL-ING
IPC: D04H1/4326
Filed: 1990-04-03
Abstract: High temperature resistant stack support comprising a preferably dimensionally stable core which is surrounded at least in part by a high temperature resistant assembly of polyimide fibres of the general formula 
<IMAGE>
 where n is an integer greater than 1 and A is a 4-valent aromatic group. 
<??>The stack support can be produced by shrinking a web of polyamide fibres of the general formula (1) onto the core by heating. 
<??>These stack supports are suitable in particular as supports for stacks of heated aluminium profiles, in particular during a heat treatment of the aluminium profiles. 
<IMAGE>
Patent EP-0440216-A2 (EP)
Inventor: AJIMA KOHSUKE C O OHMORI KOUJO
IPC: H04N9/73
Filed: 1991-01-30
Abstract: Quantity of light of blue projected on a screen is detected. A ratio of the detected quantity of the light to a whole quantity is calculated. The calculated ratio is compared with a reference ratio, and a deviation of the calculated ratio from the reference ratio is corrected so as to provide a white balance.
Patent EP-0440224-A2 (EP)
Inventor: IITSUKA HIROYUKI
IPC: G11B27/32
Filed: 1991-01-31
Abstract: A data playback apparatus for reproduction of data from a recording medium in which digital data are serially and successively recorded. The data playback apparatus is equipped with a control unit which controls a reproduction unit for reproducing data from the recording medium. The control unit determines a predetermined condition such as presence or absence of requirement of a real-time data reproduction on the basis of control information which is recorded together with the data in the recording medium. In accordance with the predetermined condition, the control unit controls the reproduction unit so as to change the reproduction speed of the data from the recording medium, thereby realizing a high transfer rate in reproduction.
Patent EP-0441390-A2 (EP)
Inventor: TAKAHASI TSUTOMU C O INTELLECT
IPC: H01L21/8234
Filed: 1991-02-08
Abstract: A P-well region (11) is provided in a semiconductor substrate (10) of N-type. A P-channel MOSFET is arranged in the N-type substrate (10) while an N-channel MOSFET is arranged in the P-well region (11). The drain regions (14, 15) of their respective MOSFETs consist of high concentration impurity diffused regions (21, 23) and low concentration impurity diffused regions (22, 24) arranged about their respective high concentration impurity diffused regions. Also, a drain electrode (17) is provided to cover at above the entire of the high and low concentration impurity diffused regions (21, 23, 22, 24).
Patent EP-0444619-A2 (EP)
Inventor: KOBAYASHI HISABUMI
IPC: C07D241/44
Filed: 1991-02-26
Abstract: A process for producing a 2-hydroxyquinoxaline which may be substituted with one or more substituents selected from the group consisting of halogen, lower alkyl and lower alkoxy, which comprises reacting o-phenylenediamine which may be substituted with one or more substituents selected from the group consisting of halogen, lower alkyl and lower alkoxy with glyoxylic acid in a lower aliphatic alcohol solvent without using a catalyst is disclosed. By the process according to the present invention, the 2-hydroxyquinoxaline derivatives can be obtained at a high purity and a high yield without using any catalyst.
Patent EP-0459508-A2 (EP)
Inventor: KITAYAMA DAISUKE
IPC: A61F9/00
Filed: 1991-05-31
Abstract: Here is described a portable chiller with which an ophthalmic solution, cosmetic preparation, beverage or the like in a small container can be conveniently chilled. This portable chiller consists generally of a cylinder (10) filled with a liquefied refrigerant gas and a chiller case (20). this chiller case (20) includes a cylinderloading compartment (23), a cooling compartment (24) in which the article is chilled, and a refrigerant ejection device (40, 50) for ejecting the refrigerant from the cylinder (10) accommodated in the cylinder compartment into the cooling compartment (24). Disposed in the cooling compartment (24) is a device (60) adapted to keep a vent orifice (31) of the cooling compartment closed to withhold gasification of the refrigerant during the period from immediately before the beginning of ejection of the refrigerant to completion of the ejection and, then, release the vent orifice (31) to allow the refrigerant to be gasified after completion of the ejection or a porous element (80) enshrouding the container loaded into the cooling compartment (24) and adapted to absorb the refrigerant from the cylinder (10) in liquid form and, then, allow the refrigerant to be gasified around the article to be chilled.
Patent EP-0471263-A2 (EP)
Inventor: JORISSEN STEVEN A
IPC: C08L67/00
Filed: 1991-08-03
Abstract: Thermoplastic molding compositions containing at least one member selected from among aromatic polycarbonate and aromatic polyestercarbonate resins were plasticized by incorporating therewith a small amount of a copolyetherester conforming to
       
 wherein x is about 2 to 15, n is about 3 to 10 and y is about 1 to 10. A and A' are end groups which may independently be a hydroxy group, a carboxy radical, a C₁-C₈ alkoxy or a C₆-C₁₀ aryloxy group. The compositions of the application are characterized by their processability.
Patent EP-0491397-A2 (EP)
Inventor: TADAMURA KATSUMI
IPC: H04L69/40
Filed: 1991-12-19
Abstract: The main storage (120), the communication interface portion (130) and the circuit control module (160) hold transmission data in the buffers until completion of the transmission has been confirmed. When a fault has occurred in the current operating system (130, 150) of the duplexed portions in the configuration elements of the host computer (100) and the multi-circuit control unit (140), the duplexed portions are changed over from the current operating system (130, 150) to the stand-by system (230, 250). In this case, information for reproducing data that has been lost due to the change-over is transmitted from the main storage (120) and the circuit control module (160) to the communication interface portion which has become the new current operating system. The communication interface portion (130) which has become the new current operating system restarts the processing based on this information. Data integrity is guaranteed for the data of both directions of transmission and receiving between the host computer (100) and to terminal (290) without mutually confirming the state of data communications before the occurrence of the fault between the terminal (290) and the host computer (100) after the occurrence of the fault. Information exchanges of layer 3 or above are not carried out between the host computer (100) and the terminal (290). Therefore, overhead of data communications can be minimized.
Patent EP-0448184-A2 (EP)
Inventor: MUELLER HANS W
IPC: B41J35/23
Filed: 1988-11-30
Abstract: A correction tape cassette (10,10a) using an arrangement for assuring cassette compatibility in a device which utilises a first (2,2a) and second (10,10a) cassette in the operation thereof, the arrangement including engaging formations (16,46,8,44) located on the first and second cassettes which ensure that the cassettes are functionally compatible with each other when inserted in the device. 
     The arrangement may be further configured, to assure cassette compatibility in a device having a switch (60) means controlling the on-off condition thereof, so as to activate the on-off switch (60) of the device only when functionally compatible cassettes are present therein.
Patent EP-0442631-A2 (EP)
Inventor: MULLER LOUIS
IPC: C08J9/00
Filed: 1991-01-29
Abstract: A method for the preparation of flexible polymeric foam by reacting a polyisocyanate component with an isocyanate-reactive component comprising at least 50 % by weight of water, the polyisocyanate component comprising at least two polyisocyanate compositions, one of them being a low NCO isocyanate terminated prepolymer and the second being a high NCO polyisocyanate.
Patent EP-0454497-A2 (EP)
Inventor: IRIE YOSHIO
IPC: C08F265/06
Filed: 1991-04-26
Abstract: A method for the production of a salt-resistant absorbent resin, which comprises subjecting an aqueous solution of at least one monomer component (A) selected from the group consisting of unsaturated carboxylic acids and salts thereof to aqueous solution polymerization in the presence of from 1 to 30 parts by weight, based on 100 parts by weight of said monomer component (A), of an absorbent resin (B).
Patent EP-0460894-A2 (EP)
Inventor: MUELLER OTWARD MARIA
IPC: H01F7/20
Filed: 1991-06-03
Abstract: A gradient current speed-up circuit, for use in a higher-speed NMR imaging system having an associated gradient coil, has a gradient power amplifier receiving an input analog signal controlling the current in an amplifier output circuit connected in series between first and second portions of a single gradient coil. Semiconductor switching elements selectively connect the coil portion-amplifier-coil portion between first and second potential sources, and are turned on and off in selected patterns to cause a current to be suddenly applied to, and removed from, flow through the associated gradient coil and the amplifier output circuit.
Patent EP-0508097-A2 (EP)
Inventor: TSUCHIYA YUZO
IPC: G11B15/68
Filed: 1992-03-04
Abstract: A tray unit (100) is moved into a housing or partially pulled out from the housing by a horizontal motor (21) provided in the housing. Since the tray unit (100) can load a plurality of cassettes, the weight of the unit is largely changed in accordance with the number of loaded cassettes. The horizontal motor (21) must be controlled by accurately detecting the moving position of the tray unit (100). The rotation of the horizontal motor (21) is transmitted to a rotary member (1022). The rotation of the rotary member (1022) is associated with a pulse detecting element provided on a printed circuit board (1100) for tray position detection. The moving position of the tray unit (100) is detected by counting pulses obtained from the pulse detecting element in accordance with the rotation of the rotary member (1022).
Patent EP-0516106-A2 (EP)
Inventor: MITSUOKA YASUYUKI
IPC: G06E3/00
Filed: 1992-05-27
Abstract: This invention is intended to enable accurate and high-speed pattern recognition even when an object to be identified changes its size, rotating angle or position. 
     The invention comprises: 
   an optical coordinate convertor for displaying at least one reference image including specified marks and at least one input image to be entered on an electrically addressed spatial light modulator    3    for object image and then converting the displayed images from one coordinate system to a desired coordinate system to produce coordinate-converted images by using the coordinate conversion optical filter array    44    and the coordinate conversion lens array    47   ; and 
   a joint transform correlator for displaying the coordinate-converted intensity distribution images, produced by the optical coordinate convertor, on the coordinate conversion light-addressed spatial light modulator    13   , Fourier-transforming the coordinate-converted intensity distribution images into Fourier-transformed intensity distribution images, displaying the Fourier-transformed intensity distribution images on the Fourier transform light-addressed spatial light modulator    105   , and Fourier-transforming again the Fourier-transformed intensity distribution image to determine the correlation coefficients of the coordinate-converted reference image and the coordinate-converted input image. 
     With this construction, it is possible to change the reference image and the kind of coordinate conversion easily and quickly.
Patent EP-0537446-A2 (EP)
Inventor: LUTHIER ROLAND
IPC: H02N2/16
Filed: 1992-08-21
Abstract: The present invention relates to a piezoelectric motor. 
<??>This motor comprises: 
 
  - a support (2), 
  - a stator (8) solid with the support (2), 
  - piezoelectric means (10) able to be electrically excited in order to impart a vibrational motion to the stator, 
  - a rotor (30) mounted in rotation with respect to the support, this rotor being able to be displaced in a plane of displacement (Pdm), about a geometrical axis of rotation (X1), 
  - means of transmission (36) for transmitting the vibrational motion of the stator (8) to the rotor (30) and for displacing it in rotation, and 
  - means (40) for seating the rotor on the stator, 
 this motor being characterised in that the stator (8) exhibits a vibratory motion having velocity components which are essentially normal to the plane of displacement (Pdm) of the rotor (30), the stator (8) cooperating with means for transforming the vibrational motion of the stator in order to drive the rotor in rotation. 
<IMAGE>
Patent EP-0512621-A2 (EP)
Inventor: DIJKHOF ANTONIE
IPC: H03L7/081
Filed: 1992-05-04
Abstract: A digital Phase Locked Loop (PLL) comprises a Voltage Controlled Oscillator (VCO) (23) and a phase detector (21). The output of the VCO is coupled to a first input of the phase detector whose output is coupled to the input of the VCO by way of a low-pass filter (22). A second input of the phase detector is coupled to the output of a digital oscillator (20). The time constant of the low-pass filter determines the time necessary for the PLL to respond to frequency changes of the signal of the digital oscillator, and is therefore preferably made smallest possible. The lower boundary of the time constant is determined by the smallest possible frequency change of the digital oscillator signal. If the smallest possible frequency change is very small, the PLL will generally become too slow because the time constant is too large. By presenting a reference signal to the digital oscillator which reference signal is shifted by a predetermined phase magnitude by the digital oscillator in each time interval, a low-pass filter having a much smaller time constant may be sufficient.
Patent EP-0507613-A2 (EP)
Inventor: SHIRAKI TAKESHI
IPC: B29C48/09
Filed: 1992-04-03
Abstract: An ultra-high molecular weight polyethylene thin-wall pipe which is uniform in thickness and free from a folded mark as well as a method of and an apparatus for manufacturing the same. The ultra-high molecular weight polyethylene thin-wall pipe is manufactured by supplying ultra-high molecular weight polyethylene into and melting and kneading, continuously extruding the molten substance of the ultra-high molecular weight polyethylene from a die (2,32,62) connected to a screw (5,36,66) of the screw extruder (1,31) to form a cylindrical roughly shaped article, and diametrically expanding the cylindrical roughly extruded article by means of a tapered core (3,33,63) and taking up.
Patent EP-0512845-A2 (EP)
Inventor: ADACHI YUTAKA KONICA CORPORATI
IPC: G03F7/004
Filed: 1992-05-08
Abstract: A light-sensitive planographic printing plate comprising a support and, provided thereon, a light-sensitive composition comprising a light-sensitive compound, an alkali soluble resin and 0.1 to 1.0% by weight of a fluorine-containing surfactant which is a copolymer of a (polyoxyalkylene)acrylate or (polyoxyalkylene)methacrylate with 10 to 25% by weight of an acrylate or methacrylate having a fluorine-containing aliphatic group, said group having from 6 to 20 carbon atoms and 30% or more by weight of fluorine atoms, and said copolymer having a weight average molecular weight of from 1000 to 6000.
Patent EP-0526064-A2 (EP)
Inventor: RAYNER BRUCE L
IPC: G11B27/032
Filed: 1992-07-20
Abstract: An operator interface for a video editing system provides a visual sense of the content of video sequences, as well as their length, while also providing enhanced interactive control of locations and time alignments of the video. As the video sequence is processed into the system, a small but representative sample (17) of each frame (19) is saved in a local memory (60), while the video itself is stored in mass storage (50). These samples (17) are used to provide a video pictorial timeline (10,11) of the underlying stored video. The location of an operator's view into the video sequence is controlled by a cursor's (12) movement along a detailed video pictorial timeline (11), a reverse motion area (18) and a forward motion area (20) to provide VTR control for location changes on the video tape. The cursor's (12) movement can be controlled by a mouse (70) or a knob (81). Icons, either static (80',90') or dynamic (89,90), are produced within the motion areas (18,20) to indicate the amount of selected velocity. Timelines (10,11,16) can be marked with time marks (27,31), roughly aligned (29,70) and then automatically fine aligned (122) by the system according to their respective time markers (27,31). The editing results associated with these timelines are also time aligned as a result of this process.
Patent EP-0550178-A2 (EP)
Inventor: BALES BRUCE MERRILL
IPC: H04M3/00
Filed: 1992-12-10
Abstract: A system for distributing a numbering plan to switching nodes which are organized in a dialing plan hierarchy and for allowing an individual switching node to redistribute blocks of numbers to other switching nodes upon requests from those switching nodes to own the requested blocks of numbers. Further, the dialing plan hierarchy is automatically established upon system initialization with each switching node determining its position in that hierarchy. In addition, a switching node that needs to use only one number of a block owned by another switching node can request permission from the other switching node to use that telephone number for a telephone connected to the switching node. Such a use is referred to as hosting the telephone number. Hosting allows a telephone connected to one switching node to have a telephone number owned by another switching node and eliminates the constraint of requiring every telephone connected to a switching node to use a number from the block of numbers own by that switching node.
Patent EP-0553694-A2 (EP)
Title: Electrical switch
Inventor: MEJERL THOMAS
IPC: H01H13/56
Filed: 1993-01-20
Abstract: An electrical switch (1) is proposed on whose operating device (4), which is guided in a moving manner in a housing (2), contact links (8) are arranged which can be brought into touching contact with stationary contact surfaces (11) which, in turn, are located in a base (5) which is attached to the housing (2). Located on two mutually opposite surfaces, which run parallel to the operating direction, of the operating device (4) are two guide curves (14, 15) which have different shapes and into which in each case one pin (19, 20) engages. The two pins (19, 20), which are used for latching, are coupled to one another by means of a connecting element (21) which is elastically deformed in sections during the movement, as a result of the different guidance of the two pins (19, 20). <IMAGE>
Patent EP-0568787-A2 (EP)
Inventor: KNOST DIETER DIPL-ING
IPC: A21B3/07
Filed: 1993-03-05
Abstract: A loading and unloading device for tiered baking ovens, by means of which the doughpieces can be removed automatically from a proving cupboard and which allows the charging and discharging of one or more tiered baking ovens. The aim here is to specify a robust loading and unloading device which can move accurately to all loading and unloading positions and precisely coordinates all sequences of motion in three axes without vibration. For this purpose, the charging table (2) is arranged between two hollow, torsionally rigid lifting columns (3) containing lifting and guiding elements. The drive for the lifting and lowering movements and the drive for the traversing motion of the crab (4) to which the lifting columns (3) are attached is provided by frequency-controlled motors and is controlled by a control unit (10) in accordance with the baking programme. <IMAGE>
Patent EP-0569992-A2 (EP)
Inventor: AALTONEN OLLI
IPC: C07D303/48
Filed: 1993-05-13
Abstract: The invention relates to a method for the preparation of optically active derivatives of epoxypropionic acid from racemic mixtures. The racemic mixture to be separated is first dissolved in carbon dioxide and the obtained solution is then passed through a chromatographic column. In a third step, the desired optical isomer of the derivative of epoxypropionic acid is separated from the eluant.