baber/WOPTO huggingface dataset:
Patent EP-0412597-A2 (EP)
Inventor: MAGNI AMBROGIO
IPC: C08F6/06
Filed: 1990-07-25
Abstract: A method is described for removing catalyst residues comprising AlCl₃ and/or its complexes from polymer products deriving from the (co)polymerization of olefinic cuts, the method comprising bringing the polymerized mass into contact with organometallic compounds, treating the resultant mixture with water or with aqueous acid or basic solutions, and separating the organic phase, which is substantially free of inorganic residues.
Patent EP-0380190-A2 (EP)
Inventor: HIRD JOHN A
IPC: H04M17/02
Filed: 1990-01-19
Abstract: A telephone system and method of operation are disclosed which use a microprocessor control system (10), a speech generator (34) and speech memory (46) to interact with a calling party placing a long distance phone call. The telephone establishes a communication path through a telephone line interface (38). The microprocessor controlled system (10) generates a billing record for the call which is stored in a call record memory (11). The billing record can later be retrieved from a remote location through standard telephone lines to facilitate billing the call.
Patent EP-0412630-A2 (EP)
Inventor: ALEXANDER WILLIAM
IPC: C02F1/28
Filed: 1990-03-28
Abstract: There is disclosed an article of manufacture and method for holding and treating water contaminated with one or more water-soluble contaminants to substantially prevent the contaminants from seeping into ground water supplies disposed below a water holding area. In one embodiment the article of manufacture and method include the use of a water-holding material (28), e.g. a water-swellable clay, such as bentonite, for reducing the permeation of the contaminated water (18) into the soil, and an in-ground treatment layer (30) containing a material capable of adsorbing, absorbing, ion-exchanging, neutralizing or reacting with one or more water-­soluble contaminants within the water for removing a substantial portion of the contaminants from the water so that the portion of held water that permeates the water-holding layer will be rendered substantially less contaminated.
Patent EP-0395368-A2 (EP)
Inventor: TOMITA MIDEHO C O NEC CORPORAT
IPC: H03D1/22
Filed: 1990-04-25
Abstract: In a demodulator for demodulating a quadrature phase modulated signal (IN) having a widely varying amplitude caused by varying radio transmission link conditions, a preprocessing circuit (21) logarithmically processes the envelope to produce a first preprocessed signal (PS1) having a logarithmically compressed and digitized amplitude, and limits the amplitude to one of two values to produce a second preprocessed signal (PS2). A phase detecting circuit (22) detects a phase difference between a reference frequency and the second preprocessed signal (PS2) and produces a phase difference signal representative of the phase difference. A processing circuit (23) processes the first preprocessed signal and the phase difference signal to produce first and second processed signals collectively as the demodulated signal. Preferably, the processing circuit (23) comprises an exponential processor (31) for exponentially processing the first preprocessed signal to produce an exponentially processed signal as the first processed signal.
Patent EP-0410683-A2 (EP)
Inventor: ALEXANDER MICHAEL PETER
IPC: B60J7/185
Filed: 1990-07-24
Abstract: A power latching mechanism (19) for use on automobile closures is disclosed, comprising a pin member (20), a keeper member (21) having a hollow cylindrical body which receives the pin member (20), a motor (23) for urging engagement between the pin member (20) and the keeper member (21), and a spring (29) and associated hardware (28,33,37) for selectively retaining the pin member (20) in the keeper member (21). In one embodiment, the keeper member (21) retentively engages the pin member (20) when the pin member (20) is manually inserted thereinto and is also manually disengageable.
Patent EP-0420588-A2 (EP)
Inventor: SASAKI TAKASHI C O CANON KABUS
IPC: H04N9/04
Filed: 1990-09-25
Abstract: An image pickup apparatus includes a solid-state image pickup element provided with a plurality of color filters, a differential encoding circuit for quantizing a difference between signals from pixels of the same kind of adjacent filters in a horizontal scanning direction of the solid-state image pickup element, an apparatus main body having an apparatus output terminal for supplying an output from the differential encoding circuit, and a storage body capable of recording the output from the apparatus output terminal of the apparatus main body.
Patent EP-0425261-A2 (EP)
Inventor: MATSUDA SHOHEI C O K K HONDA G
IPC: B60T13/68
Filed: 1990-10-24
Abstract: A method of controlling hydraulic braking pressure in a vehicle, wherein an electrically operated actuator (4) produces a hydraulic braking pressure F′OUT(n) in response to an applying electricity level FOUT(n) applied to the actuator (4), such that the hydraulic pressure F′OUT(n) increases as the applying electricity level FOUT(n) increases, includes the steps of setting the applying electricity level F′OUT(n) in correspondence to an amount of braking operation FOUT(n), determining at least two types of electricity levels F′OUT(n) having larger and smaller variation rates with respect to a variation in an amount of braking operation FOUT(n), and changing the applying electricity level F′OUT(n) having the larger variation rate to an applying electricity level F′OUT(n) having the smaller variation rate, when the amount of braking operation FOUT(n) is greater than or equal to a switchover set value FOUT.O.
Patent EP-0421916-A2 (EP)
Inventor: LINDER CHARLES DR
IPC: C13B20/16
Filed: 1990-04-10
Abstract: A composite membrane which comprises:
     (a) a porous semipermeable membrane substrate; and   (b) a coating superimposed thereon which includes at least one member selected from: 
monomers containing at least one diazonium group, 
polymers containing at least one diazonium group, 
monomers containing at least one primary amino group and which have been exposed to the action of at least one member selected from nitrous acid and other reagents which potentially react with primary amine groups to form diazonium groups, and 
polymers containing at least one primary amino group and which have been exposed to the action of at least one member selected from nitrous acid and other reagents which potentially react with primary amine groups to form diazonium groups; 
and wherein the coating has been subjected to at least one  in situ  chemical reaction with loss of any diazonium groups which may be present, and with formation of valence links in at least one of the modes (i), (ii) and (iii), namely:
   (i) among different moieties of the at least one member between themselves;   (ii) between moieties of the at least one member and the material of the substrate; and   (iii) beweeen moieties of the at least one member and a polyfunctional reactant.
Patent EP-0460347-A2 (EP)
Inventor: CHIKUMA KIYOFUMI
IPC: G11B7/244
Filed: 1991-01-16
Abstract: A method of manufacturing an optical disk on which light-emitting regions for absorbing a laser beam and emitting light of a wavelength different from that of the laser beam and reflection regions for reflecting a laser beam irradiated thereon are alternately arranged, comprises the steps of forming a reflection layer on a transparent substrate, forming a plurality of through holes in the reflection layer, and filling a light-emitting layer consisting of a fluorescent member in the through holes, thereby a high-density optical disk can be manufactured.
Patent EP-0445794-A2 (EP)
Title: Vorwärtssicht-Radar
Inventor: WITTE FRANZ
IPC: G01S7/03
Filed: 1991-03-07
Abstract: Bei einem Vorwärtssicht-Radar, bei welchem von fliegenden oder stationären Trägern aus Land- oder Meeresoberflächen in einem vorausliegenden Sektorbereich zweidimensional abgebildet werden, ist eine starr an einem Träger montierte Antenne aus einer Anzahl geradlinig nebeneinander und in zwei Reihen übereinander angeordneter Einzelelemente vorzugsweise in Form von Horn-Antennen so aufgebaut, daß bei einer vorgegebenen Aperturlänge ℓ jedes Einzelelements und bei einem vorgegebenen Abstand der Einzelelemente die Antenne eine Antennenlänge L = n . ℓ/2 aufweist. Hierbei erfolgt jeweils mittels der Einzelelemente ein Senden und anschließend ein Empfangen nacheinander vom ersten bis zum letzten der Anzahl Einzelelemente. Zur Realisierung einer digitalen Kopplung der Einzelelemente wird jedes Einzelelement gesondert digital ausgewertet, und durch Korrelation einer speziellen, vorgegebenen Referenzfunktion wird für jeden Winkelbereich eine digitale Verarbeitung durchgeführt. <IMAGE>
Patent EP-0459314-A2 (EP)
Title: Data bus clamp circuit of semiconductor memory device
Inventor: MIYAWAKI MASAHUMI
IPC: G11C11/409
Filed: 1991-05-24
Abstract: A data bus clamping circuit is adapted for use in a semiconductor memory device including a memory cell array (10) for storing data, a row address decoder(20) for decoding row address signals (XADm) taken in by a row address strobe signal ( RAS)  to select memory cells in a row direction of the memory cell array, a column address decoder (40) for decoding column address signals (YADn) based on a column address decoder enabling signal (YDE) to select memory cells in a column direction of the memory cell array, complementary data buses (DB and  DB ) for transmitting data read out from the memory cell array, a data bus pull-up circuit (50) for pulling up the complementary data buses, and a differential amplification type of readout circuit (70) for amplifying on a differential basis data on the complementary data buses to output readout data. The data bus clamping circuit includes a first discharge circuit (100) for discharging electric charge on said complementary data buses during an active period of the row address strobe signal ( RAS) , and a second discharge circuit (110) for discharging electric charge on said complementary data buses with a discharge ability larger than said first discharge circuit 100, during a period of time from the time the active period of the row address strobe signal starts until the column address decoder enabling signal becomes active.
Patent EP-0469300-A2 (EP)
Inventor: SCHWERDFEGER HEINZ
IPC: B65G47/86
Filed: 1991-06-27
Abstract: A device for moving elongated products, such as tubes, shafts or the like, in particular for peeling machines with rotating cutter head, has a multiplicity of clamping heads which are moved by means of rotating chains arranged parallel to one another and which can be clamped and released in a controlled manner. In the novel solution, more than two rotating chains are provided, which are all connected by support elements which are arranged transversely to the running direction of the chains and in turn run parallel to one another. The clamping heads are each connected to the support elements, which have guide bodies arranged at the front end. These guide bodies run on fixed guideways. The provision of a multiplicity of chains permits the use of chains with a small pitch and leads to a reduction in the overall length compared with known devices of this type. <IMAGE>
Patent EP-0468495-A2 (EP)
Inventor: NAKANO TETSUYA
IPC: G03G9/087
Filed: 1991-07-24
Abstract: The present invention provides an electrophotographic developer comprising (i) a toner containing, as a fixing resin, a styrene-acrylic copolymer presenting a gel permeation chromatogram showing a molecular-weight distribution in which the detection-starting molecular weight and the detection-ending molecular weight are respectively located in specific ranges, and (ii) a carrier coated with a coating resin which is a styrene-acrylic copolymer containing at least 2-hydroxyethyl acrylate. 
     Even though repeatedly agitated in the developing device, the electrophotographic developer of the present invention is not deteriorated and assures good durability and long life-time.
Patent EP-0476570-A2 (EP)
Inventor: LANGE WERNER DR
IPC: H01P1/16
Filed: 1991-09-16
Abstract: This method is characterised by an unsymmetric multi-mode excitation. This results in simple antenna devices.
Patent EP-0483823-A2 (EP)
Inventor: SATO KEIJI
IPC: H04N5/782
Filed: 1991-10-30
Abstract: In an appartus for recording a video signal having interlaced fields on a recording medium sequentially using a plurality of rotating heads, a rotational phase of a rotating head relative to a vertical synchronizing signal of the video signal to be recorded is relatively switched for a period corresponding to a phase difference between a vertical synchronizing signal and a horizontal synchronizing signal of each field. It is thereby possible to obtain an excellent video signal without producing discontinuity of horizontal synchronizing signals in a reproducing operation even if a video signal of each field is recorded using any of the plurality of rotating heads having different rotational phases. At that time, objective rotational phases of a rotating cylinder provided with the plurality of rotating heads are present in the same number as the number of rotating heads. Hence, the speed of the start-up synchronizing operation is increased.
Patent EP-0488084-A2 (EP)
Inventor: CHUBACHI NORIYOSHI
IPC: G01H5/00
Filed: 1991-11-22
Abstract: The ultrasonic sound velocity measuring apparatus or ultrasonic microscope of the present invention which rely on the V(z) characteristics are characterized by the following:
     the sample (11) to be measured or examined is moved relative to a focusing acoustic probe (8) from its focal point to a defocus point closer to the probe (8); the intensity of a first reception signal in the peripheral portion (8a) of the transducer (8a, 8b) of the acoustic probe (8) as obtained therefrom in response to said relative movement of the sample (11), the phase difference between the first reception signal and either the signal for driving the acoustic probe (8) or the corresponding reference signal, the intensity of a second reception signal in the central portion (8a) of the transducer (8a, 8b) of the acoustic probe (8) as obtained therefrom in response to said relative movement of the sample (11), and the phase difference between the second reception signal and either the signal for driving the acoustic probe (8) or the corresponding reference signal are subjected to more than one sampling at time intervals corresponding to positions in the defocus direction; data on the intensity and phase difference of the plurality of the first reception signals as obtained by the sampling step as well as data on the intensity and phase difference of the plurality of the second reception signals as obtaied by the sampling step are obtained as data for vector functions, with respect to the position in the defocus direction, of the wave of interference between the leaky elastic surface wave component and the reflected wave component near the central axis of the acoustic probe (8) so as to calculate the velocity of the leaky elastic surface wave component.
Patent EP-0490215-A2 (EP)
Inventor: MUENSCHER WOLFGANG DIPL-DES
IPC: H04M1/02
Filed: 1991-12-02
Abstract: Hands-free telephone set with a handset body (7) and a support (1). A telephone set is to be indicated which enables hands-free operation without additional circuitry measures. This is achieved by coupling the microphone to the surroundings when the handset body (7) is on-hook via a sound channel (4) running along the depression (2) of the support (1). <IMAGE>
Patent EP-0456305-A2 (EP)
Inventor: ASKEW WARREN
IPC: E21B31/113
Filed: 1991-04-27
Abstract: A hydraulic drilling jar includes a mandrel (20) and a housing (21) movable between extended and retracted relative positions to deliver jarring blows to a struck object, a piston (69) on the mandrel that slides in a cylinder (70) in the housing, and a restriction assembly (75) on the housing having an internal seal (125) that engages an enlarged section (112) of the mandrel to enclose a high pressure, oil-filled chamber (77) between the piston and the restriction assembly, the restriction assembly including a pin check valve (120) that provides a very slow leakage of oil from the high pressure chamber while the enlarged section of the mandrel is engaged with the seal. An oil-filled compensating chamber (61) on the opposite side of the restriction means from the high pressure chamber has its pressure equalized with the pressure inside the mandrel by ports (44) through the wall of the mandrel.
Patent EP-0478020-A2 (EP)
Inventor: FERRARI MAURIZIO
IPC: A01D34/74
Filed: 1991-06-26
Abstract: The lawnmower comprises a chassis (1) supporting a cutting blade rotating in a horizontal plane, two horizontal-axis rear wheels (3) for supporting and moving the chassis (1), a freely-rotating support roller (7) interposed between the rear wheels (3) with its axis of rotation (16) parallel to that of the latter and means (11) for adjusting the height of the chassis (1) with respect to the wheels. The supporting roller (7) is rotatably held by a pair of supports (8) rigidly connected together and also kinematically connected to the axis (6) of the wheels (3); in addition, the supports (8) are loosely constrained to the chassis (1) so that they can be displaced with respect to it together with said axis (6) of the rear wheels (3) along a rectilinear path defined by slide guides (26).
Patent EP-0450985-A2 (EP)
Inventor: MORT JOSEPH
IPC: H01L29/786
Filed: 1991-04-05
Abstract: A thin film transistor in which a source electrode (26) is electrically isolated from a drain electrode (28) and a gate electrode (34). The gate electrode (34) is formed on one surface of an electrically insulating layer (32). A semiconducting layer (30) is formed on the other surface of the electrically insulating layer. The semiconducting layer has a charge carrier mobility of at least 1 cm²/V-sec. and is made from a polycrystalline diamond layer. The source electrode (26) and the drain electrode (28) are formed on one surface of the polycrystalline diamond layer (30). The other surface of the polycrystalline diamond layer is in integral contact with the other surface of the electrically insulating layer.
Patent EP-0459814-A2 (EP)
Inventor: KAWASAKI SATOSHI
IPC: G11B20/24
Filed: 1991-05-31
Abstract: A noise reduction apparatus wherein a sampled digital data is compared with a first threshold value (t) to average the digital data during a period while the level of low frequency components containing jitter noises is a predetermined threshold level or lower, an averaging operation for the digital data after a predetermined number of sampling points continues if a difference value between previously and presently obtained digital data takes a second threshold value (tp) or lower, the averaged digital data obtained during a predetermined number of rotations of a rotary head is converted into an analog signal, and the analog signal is subtracted from a reproduced signal.
Patent EP-0479725-A2 (EP)
Title: Stabilisierte Styrolcopolymere enthaltend Elastomerteilchen
Inventor: GILG BERNARD DR
IPC: C08F279/00
Filed: 1991-09-25
Abstract: ABS-Copolymere und ähnliche Styrol- oder α-Methylstyrol-Copolymere, die eine Elastomerphase enthalten, werden gegen Lichtabbau stabilisiert durch a) Einbau eines copolymerisierbaren sterisch gehinderten Amins und b) Zusatz eines nicht copolymerisierbaren sterisch gehinderten Amins zum Copolymeren. Als sterisch gehinderte Amine werden Polyalkylpiperidine bevorzugt.
Patent EP-0448532-A2 (EP)
Inventor: HAGQVIST PETER HENNING
IPC: F16H15/50
Filed: 1991-02-13
Abstract: This invention relates to a gear for small high speed motors. The gear comprises an input and an output shaft (11 and 21) the output shaft (21) being surrounded by two concentric annular plates (15, 16) being supported for rotating motion on the output shaft (21). The plates (15, 16) are in engagement with rolling elements (18) applied in a holder (20) for the elements secured on the output shaft (21) the plates being driven from the input shaft (11) via a drive means (12) placed between and abutting the two plates.
Patent EP-0502323-A2 (EP)
Inventor: SCHUBART BERND
IPC: G09F9/30
Filed: 1992-02-01
Abstract: In an electronic balance (1, 2) with a digital display (4) of the weighing result, in which at least the last digit of the weighing result is visually different from the remaining digits, the visual differentiation is obtained by a frame (7) round the digit or digits. The calibration value deviating from the higher resolution of the balance can thereby be clearly emphasised on balances liable to calibration. <IMAGE>
Patent EP-0508322-A2 (EP)
Inventor: KURZ ADOLF
IPC: H02G15/08
Filed: 1992-04-03
Abstract: 2.1 The stress core which is required in cable junction sleeves for connecting a compound-impregnated cable to a plastic cable is intended to be simplified and the sealing of the compound reservoir is intended to be eased. 2.2 A prefabricated insulating body (10) which consists of elastomeric material, is of tubular shape and can be pushed onto a cable connector (14) largely replaces the stress core and permits sealing with respect to the plastic cable. The compound reservoir (2) is positioned in the region between the insulating body (10) arranged on the side of the plastic cable (K) and a sealing part (3) arranged on the side of the compound-impregnated cable (M) such that a drain region remains free for subsequent impregnation of the cores of the compound-impregnated cable (M). <IMAGE>
Patent EP-0513527-A2 (EP)
Inventor: SRIDHAR MANICKAM R
IPC: H04L5/14
Filed: 1992-04-09
Abstract: A two wire modem (FIG. 3) selects a carrier frequency in a baud rate from a predetermined plurality of carrier frequencies and baud rates to communicate with another modem over a communication media in a full duplex mode based on signal and echo characteristics of the communication media estimated by the modem. In addition, the processes of estimating channel characteristics and estimating range are combined in a common start up procedure (Figs. 3, 5, 13A, and 14A) characterized by a plurality of successive time segments for a call modem to communicate with an answer modem over a communication media. Still further, a method is provided for switching from a primary communication media connection to a secondary connection of a data communications network for communication by first and second modems coupled to the network. More specifically, when a failure is detected in the primary connection, the secondary connection is qualified (372, 374, 376) before switching (372) thereto. Similarly, while communicating over the secondary connection, the primary connection is qualified so that communication may be restored thereto at some later time.
Patent EP-0512541-A2 (EP)
Inventor: SATO SHINICHI
IPC: H05B44/00
Filed: 1992-05-07
Abstract: A semiconductor laser control apparatus comprises a semiconductor laser (2), a semiconductor laser control circuit (3), a drive current measuring unit (20), a detection unit (22), a warning unit (23), and a memory unit (24). The memory unit (24) stores at least one initial drive current values (l ref ) and corresponding temperatures (T ref ). The detection unit (22) compares an actual drive current value (lop, If) measured by the drive current measuring unit (20) with the initial drive current value (l ref ) corresponding to an actual temperature (T). The warning unit (23) generates an alarm of a prediction of the expiration of service life of the semiconductor laser (2), when the actual drive current value (lop, If) exceeds the corresponding initial drive current value (l ref ) as much as a specified percentage. Consequently, the near expiration of the service life of the semiconductor laser (2) can be confirmed and therefore render the operational effects such as replacement of the semiconductor laser without causing any hindrance to the operation.