baber/WOPTO huggingface dataset:
Patent EP-0349185-A2 (EP)
Inventor: DAVIS GORDON TAYLOR
IPC: H04L27/20
Filed: 1989-06-20
Abstract: A demodulator mechanism is described for demodulating differential phase modulated carrier signals. This demodulator mechanism solves the following two equations: 
U = K·[R2·(R1 - S1) + S2·(R1 + S1)] 
V = K·[R2·(R1 + S1) - S2·(R1 - S1)] 
where U denotes a first baseband modulation component of the received carrier signal, V denotes a second baseband modulation component of the received carrier signal, K denotes a proportionality constant, R2 denotes the received carrier signal, R1 denotes a delayed version of the received carrier signal which has been delayed by one baud period relative to the received carrier signal, S2 denotes a 90° phase shifted version of the received carrier signal and S1 denotes a delayed version of the phase shifted carrier signal which has been delayed by one baud period relative to the phase shifted carrier signal. Both analog and digital implementations of the demodulator mechanism are described. Double frequency terms are automatically cancelled and no post detection filtering is required for this purpose.
Patent EP-0351169-A2 (EP)
Inventor: HAYAKAWA KIYOHARU BROTHER KOGY
IPC: G03F7/00
Filed: 1989-07-10
Abstract: In an imaging device such as a duplicating machine employing a continuous-form photo and pressure-­sensitive recording medium (37) and being arranged in such a manner that the recording medium is exposed based upon an original, further pressurized with a pair of rollers (21, 31) to develop a visible image, provided are a plurality of drive means such as motors for independently driving rollers to travel the recording medium with an exposure operation and a pair of pressure rollers to pressure the exposed recording medium. 
     Thus, the exposure operation is evenly executed on an area to be exposed regardless of a load fluctuations with a pressurizing operation executed by the rollers.
Patent EP-0365125-A2 (EP)
Inventor: THOMPSON GEORGE HORACE BROOKE
IPC: G02B6/34
Filed: 1989-08-29
Abstract: A one-dimensional reflective-type diffraction grating is formed in a slab waveguide by a one-dimensional array of wells (23) formed with substantially perpendicular walls (24).
Patent EP-0367616-A2 (EP)
Inventor: WATANABE HIROSHI
IPC: H04N9/31
Filed: 1989-11-02
Abstract: Disclosed is an electro-optic element, such as a liquid crystal, which exhibits optically rotatory dispersion and in which a pair of phase difference films (8, 9) having generally orthogonal stretching axes are disposed between a pair of polarizing plates (1, 2). The disposition of stretching axis directions (10, 11), arrangements (6, 7) of a liquid crystal cell (5) and transmission axis directions (3, 4) of the polarizing plates (1, 2) are optimized to achieve an increase in the angle of visibility, an increase in the contrast and improvements in color tones.
Patent EP-0372825-A2 (EP)
Inventor: SU CHUNG-YI
IPC: G01R13/34
Filed: 1989-11-30
Abstract: A Monolithic Sampler is disclosed. The present invention overcomes the problem of inadequately low sampling rates that result from circuit designs or component limitations that constrain the bandwidths of previous instruments. 
     The sampler includes five circuit stages: a local oscillator section that may be used to drive the system, a shock wave generator that produces high frequency edge-sharpened pulses, a reflection damping clamping section, a delay section, and a sampler section regulated by the stream of shock waves which produces an IF output. The local oscillator or a pulse generator (not shown) produces an input that propagates down a nonlinear transmission line. Once this input reaches the shock wave generator section, it encounters a series of hyperabrupt diodes which are employed as voltage dependent capacitors called varactors. These varactors deform the input pulses and generate a stream of spike-shaped waveforms known as shock waves. The shock waves successively energize sampling diodes in the sampling section of the circuit. When these diodes are energized, they open pathways from an RF input to sampling capacitors which charge up with small representative bits of current from the input. A sample or snapshot of the input is drawn from these capacitors through an IF output coupling network. The clamping and delay sections of the sampler minimize spurious ringing throughout the circuit and manage the timing of the oscillation of these reflections. 
     The entire sampler is monolithically integrated on a single substrate using conventional semiconductor fabrication and packaging techniques. The resulting Monolithic Sampler is a highly efficient instrument which is extremely reliable and easy to manufacture. The integrated structure reduces unwanted interference and eliminates the need for costly fabrication methods which require expensive tools that ensure the precise mechanical alignment of discrete components. The utilization of the hyperabrupt diode loaded transmission line   in this novel design enables the sampler to operate at frequencies exceeding 100 GHz. The Monolithic Sampler disclosed and claimed in this patent application provides an advanced and highly useful instrument that will enable engineers in the electronics industry to construct more cost-effective and powerful diagnostic and monitoring systems.
Patent EP-0372932-A2 (EP)
Inventor: WATANABE TSUNEO
IPC: G03B9/06
Filed: 1989-12-06
Abstract: A diaphragm device in which the aperture of a diaphragm opening is variable from a minimum aperture to a fully open aperture comprises: 
a plurality of diaphragm blades each having a pivot center, the edge portion of the diaphragm opening being formed by an inner edge portion in which the diaphragm blades overlap one another; and 
a driving device for rotating the plurality of diaphragm blades about the pivot centers at a time; 
the inner edge portion including a first arc disposed in a first portion nearest to the pivot center and having a radius of curvature (r₁) substantially equal to the fully open aperture, a second arc disposed in a second portion farther from the pivot center than the first portion and having a radius of curvature (r₄) substantially equal to the minimum aperture, at least one third arc disposed in a third portion farther from the pivot center than the second portion and having a radius of curvature ( r₃, r₂) gradually becoming greater away from the pivot center within a range smaller than the fully open aperture and greater than the minimum aperture, and straight lines or curves smoothly connect­ing adjacent ones of the arcs together; 
 
     The centers of curvature of the arcs lying equidistantly from the pivot center of the diaphragm blades.
Patent EP-0376625-A2 (EP)
Inventor: KANZAKI HIDETOSHI
IPC: D01D5/247
Filed: 1989-12-21
Abstract: An acrylic synthetic fiber having in the transverse section thereof many openings having an indeterminate shape and a size of 0.1 to 1.6 µm, wherein in the interior of the fiber, each opening forms a vein-like or straw-like void extending substantially in parallel to the longitudinal axis of the fiber and having a length of at least 60 µm. This acrylic fiber is prepared by a) dissolving in a suitable solvent an acrylic polymer comprising at least 60 weight% of an acrylonitrile unit and 5 to 20 weight %, based on the weight of the acrylic polymer, of a polyalkylene glycol having a number average molecular weight of 5,000 to 50,000, b) aging the formed spinning solution for at least 4 hours, and c) extruding the spinning solution into a coagulating medium. The acrylic fiber is useful, e.g., as a frictional material comprising (a) a pulpy material made from the acrylic fiber, (b) a resin and (c) a filler.
Patent EP-0350456-A2 (EP)
Inventor: OTTAVIANI GINO
IPC: A46D1/00
Filed: 1989-06-05
Abstract: A scrubbing brush (1) is fitted to a supporting plate (2) above which the long handle is fitted by means of a coupling sleeve (3). The handle is adjustable for position by engaging lever (3b) in different recesses (2b). The brush (1) itself has a particular structure with numerous blades (1a, 1b) turned downwards and arranged in two directions, either longitudinal or transverse to the brush main axis. Thus the brush (1) functions efficiently regardless of whether it is used with alternating movements parallel or orthoganal to its longitudinal axis.
Patent EP-0378988-A2 (EP)
Inventor: URDL FRANZ
IPC: G21C13/00
Filed: 1989-12-05
Abstract: The emission of radioactive radiation from nuclear power stations, reconditioning plant and temporary/final waste depositories is monitored by passing the surrounding air to a compressor and to a radiation detector. The latter is based on a greenhouse nearby, with plants which respond to radiation exposure of this nature in a known way. TV cameras are directed on the plants so that the public can be kept informed.
Patent EP-0423431-A2 (EP)
Inventor: HESSEL STEFAN DR
IPC: B23K26/00
Filed: 1990-07-11
Abstract: The surgical laser is suitable for alternating contact cutting and contactless coagulation of biological tissue by means of radiation of a laser conducted in a fibre optic fashion. For this purpose, the radiation which is emitted from the biological tissue (9, 19), received once again via the distal end (4.2, 14.2) of the fibre optic light conductor (4, 14) and fed back via the fibre optic light conductor (4, 14) is picked up in a spectral range between 0.3 and 0.9  mu m with filtering out of the laser radiation and directed onto a radiation detector (7, 17). The radiative power of the laser (1.1, 11) is controlled, by means of the detector output signal, at a value situated below the destruction threshold of the fibre optic light conductor (4, 14) in such a way that the radiation emitted during combustion both of the biological tissue (9, 19) to be cut and of the tissue remains adhering to the distal end (4.2, 14.2) of the fibre optic light conductor (4, 14) or burned into the latter does not exceed a prescribed value. …<IMAGE>…
Patent EP-0425774-A2 (EP)
Inventor: BAUCH KARL DIPL-ING
IPC: B23B31/117
Filed: 1990-08-03
Abstract: Die Betätigungsvorrichtung für einen Werkzeugspanner (1) weist eine in einer Werkzeugmaschinenspindel (2) unter Wirkung einer Federanordnung (11) in Spannrichtung axial verschiebbare Spannstange (3) und ein zwischen der Spindel und der Spannstange angreifendes, erstes Keilgetriebe (9) mit frei beweglichen Kugeln auf, die sich jeweils an drei Konusflächen abstützen. Diese sind an einer auf der Spannstange axial verschiebbaren Spannhülse (13) an einem mit der Spannstange (3) verbundenen Spannring (14) und an einem gegenüber der Spindel stationär angeordneten Widerlagerring (15) vorgesehen. Die Federanordnung (11) wirkt über eine auf der Spannstange axial verschiebbare Druckhülse (12) ein. Zwischen Druckhülse (12) und Spannhülse (13) ist ein zweites Keilgetriebe (10) mit frei beweglichen Kugeln vorgesehen, die sich jeweils an zwei entgegengesetzt zueinander geneigten Konusflächen an den einander zugekehrten Stirnseiten der beiden Hülsen (12,13) und nacheinander an zwei weiteren entgegengesetzt zueinander geneigten Konusflächen des Widerlagerringes (15) abstützen. Eine Kolben-Zylinder-Einheit (7,8) wirkt beim Lösehub entgegen der Spannrichtung zunächst auf die Spannhülse (13) und dann auch auf einen Ringabsatz (3a) der Spannstange ein.
Patent EP-0418616-A2 (EP)
Inventor: LAHMANN JUERGEN
IPC: A23L27/23
Filed: 1990-08-31
Abstract: Sweetening agents such as sweeteners and sugar substitutes are used for the production of reduced-calorie foodstuffs. With a very high sweetening power, however, the sweeteners generally have an afterflavour or aftertaste, which must be hidden by further additives. A sweetener which is very similar to sucrose is produced by a combination of sweetening agent and yeast extract. Sweetening of foodstuffs
Patent EP-0418919-A2 (EP)
Inventor: ARINOBU ICHIRO C O FUKUYAMA SE
IPC: H01H9/54
Filed: 1990-09-21
Abstract: In a multicircuit control apparatus (10) including a mechanical main contact (125) and plural semiconductor switching devices such as triacs (13a, ---, 13d) each connected in series to the main contact, the main contact is closed by a control circuit 15 prior to turning-on of any of the semiconductor switching devices and is also opened by the control circuit 15 after completion of turning-off of all the semiconductor devices.
Patent EP-0433602-A2 (EP)
Title: Method and apparatus for forming elastomers
Inventor: CARRARA MAURO
IPC: B29C43/08
Filed: 1990-10-19
Abstract: Apparatus and a method for forming seals, such as composite seals in rubber/metal or other materials is described; a raw elastomeric mixture in the form of a suitably shaped extrusion (100) and a possibly metal or other material insert are supplied to respective loading stations of a transfer machine (2); the machine is provided with a plurality of carriers (10) each composed of at least two pivoted leaves joined in book-like fashion and each carrying a respective mould half (12, 13), respective spring presses (8) movable on the machine together with the said carriers, and cam means (30) for holding the said carriers open at the loading stations; after cleaning of the mould halves and spraying of the upper mould half (13) with a release agent a said insert (78) is deposited between the mould halves by means of manipulators (75, 76) able to self-centre themselves with respect to each carrier and then a blank (99) of raw mixture obtained by slicing the extrusion (100) is deposited between the mould halves; finally each carrier is closed in such a way as to bring the mould halves together, disposed clamped under the corresponding spring press (8) and fed into a polymerisation tunnel (62).
Patent EP-0429948-A2 (EP)
Inventor: NOGUCHI HIROSHI
IPC: H04L27/22
Filed: 1990-11-13
Abstract: The invention relates to a demodulator (2) and to a radio receiver having such a demodulator and, more particularly, to a demodulator for demodulating signals which were digitized by a direct detecting method in which a circuit scale is small and an electric power consumption is small and to a radio receiver having such a demodulator (2). 
     Particularly, it is a characteristic portion that a limiter (1) in the demodulator comprises: a circuit for obtaining absolute values of the digital signals (I signal, Q signal) which are produced from an angle modulated wave and whose phases are mutually orthogonal; a circuit for outputting the sum (|I| + |Q|) of the absolute values or the larger one M (|I| , |Q|) of the absolute values; a controller for producing a control signal according to an output of the above circuit; and scalers which change the amplitudes of the first and second digital signals in accordance with the control signal and which are constructed by a plurality of shift registers and adders.
Patent EP-0379265-A2 (EP)
Title: Apparatus for testing or exercising muscles of the lower trunk of the human body
Inventor: JONES ARTHUR
IPC: A63B23/04
Filed: 1988-05-27
Abstract: Methods and apparatus for exercising or testing the strength of muscles in the lower trunk of the human body. The patient or exerciser is seated with his pelvis and legs fixed against movement and with his head, arms and upper back fixed relative to a movement arm which extends above the seat and is mounted for pivotal movement relative to the seat about a horizontal axis. while the movement arm is in a predetermined position, the patient applies a force through the upper back to the movement arm to stress the muscles of the lower trunk, and the strength of these muscles is measured. To exercise these muscles, the movement arm is moved by a force exerted by the upper back against a bias of a resistance weight to lift the weight, and then the force is released to lower the weight and the process is repeated. A compound weight system is employed to allow precise weight adjustment to suit the strength of the exerciser. The movement arm including the weight of the exerciser is balanced about the pivot axis by means of counterweights including an adjustable counterweight.
Patent EP-0385687-A2 (EP)
Inventor: SANSONE MICHAEL J
IPC: C08G73/18
Filed: 1990-02-26
Abstract: This invention discloses a unique process for the preparation of N-substituted phenyl polybenzimidazole polymers from unsubstituted polybenzimidazole polymers. An unsubstituted polybenzimidazole polymer is first reacted with an alkali hydride to produce a polybenzimidazole anion which is then reacted with a substituted or an unsubstituted phenyl fluoride to produce N-substituted phenyl polybenzimidazole polymer. The N-substituted phenyl polybenzimidazole polymer produced by this process can be formed into a wide range of products, such as membranes, films resins or fibers. The produce can be designed to meet special applications by the choice of the substituent. These N-substituted phenyl polybenzimidazole polymers can be utilized for numerous applications including reverse osmosis, ultrafiltration, microfiltration, electrodialysis, ion exchange and affinity chromatography.
Patent EP-0401995-A2 (EP)
Inventor: WONG MON N
IPC: H01P1/213
Filed: 1990-05-18
Abstract: A diplexer (10) for electromagnetic signals of higher and lower frequency is formed of a common waveguide channel (20) for both signals, the common channel branching into a through waveguide channel (26) and a side waveguide channel (28). The through channel includes a filter (42) having a pass band for propagation of the lower frequency signal and inhibiting propagation of the higher frequency signal. The side channel is formed as a waveguide below cut-off frequency with respect to the lower frequency signal for inhibiting propagation of the lower frequency signal while permitting propagation of the higher frequency signal. A coupling aperture formed as a slot (58) resonant at the higher frequency is located in a waveguide wall at an integral number of quarter guide wavelengths in front of the filter for coupling the higher frequency signal between the common and the side channels.
Patent EP-0413440-A2 (EP)
Inventor: HAYANO TOSHIYA C O TONEN CORPO
IPC: C12N9/90
Filed: 1990-07-19
Abstract: A yeast PPIase characterized by possessing the following properties: (1) acting on and isomerizing the bond X aa -Pro (wherein X aa  stands for any amino acid and Pro stands for L-proline), (2) exhibiting a single molecular weight of about 17,000 daltons in the sodium dodecyl sulfate-polyacrylamide concentration gradient gel electrophoresis, (3) exhibiting a single isoelectric point of about 6.2 in the isoelectric focusing, and (4) inhibited by CsA; 
an  E .  coli  PPIase-β characterized by possessing the following properties: (1) acting on and isomerizing the bond X aa -Pro (wherein X aa  stands for any amino acid and Pro for L-proline), (2) exhibiting a single molecular weight of about 20,000 daltons in the sodium dodecyl sulfate-polyacrylamide concentration gradient gel electrophoresis, (3) exhibiting a single isoelectric point of about 5.0 in the isoelectric focusing, and (4) no being inhibited by CsA; 
an  E .  coli  PPIase-α characterized by possessing the following properties: (1) acting on and isomerizing the bond X aa -Pro (wherein X aa  stands for any amino acid and Pro for L-proline), (2) exhibiting a single molecular weight of about 22,000 daltons in the sodium dodecyl sulfate-polyacrylamide concentration gradient gel electrophoresis, (3) exhibiting a single isoelectric point of about 9.7 in the isoelectric focusing, and (4) not being inhibited by CsA.
Patent EP-0410654-A2 (EP)
Inventor: IMAI MASANORI C O FUJI PHOTO F
IPC: C08F2/50
Filed: 1990-07-20
Abstract: A light-sensitive composition comprises a photo-­crosslinkable polymer having a photo-dimerizable unsaturated bond and a sensitizer represented by the following general formula (I):
      wherein R₁ and R₂ each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted allyl group, provided that R₁ and R₂ may form a ring together with the carbon atoms to which they are attached;  n  represents 0, 1 or 2; and G₁ and G₂ each independently represents a hydrogen atom, a cyano group, a substituted or unsubstituted alkoxycarbonyl group, a substituted or unsubstituted aryloxycarbonyl group, a substituted or unsubstituted acyl group, a substituted or unsubstituted arylcarbonyl group, an alkylthio group, an arylthio group, an alkylsulfonyl group, an arylsulfonyl group or a fluoroalkylsulfonyl group, provided that G₁ and G₂ do not represent a hydrogen atom simultaneously and that G₁ and G₂ may form a ring comprising a non-metallic atom and the carbon atoms to which they are attached. According to   the present invention, the sensitivity of the light-sensitive composition is greatly improved by the use of the above sensitizer.
Patent EP-0449056-A2 (EP)
Inventor: LANG HEINRICH
IPC: B60R1/06
Filed: 1991-03-15
Abstract: An exterior mirror for trucks has a housing (24) in which at least one adjustable mirror (10) and an electrically or manually operatable adjusting unit is arranged for swivelling the mirror in relation to the housing. In addition a locking device (17) is provided for fixing a holding arm. In order to keep vibrations of the mirror (10) to a minimum, a support plate (1) is provided in the housing (24), which plate is mounted directly on the locking device (17). On the other side of the support plate (1) at least one adjusting unit (2) is fitted to which the mirror (10) is in turn fitted. The housing is only connected to the support plate; it has no supporting function. <IMAGE>
Patent EP-0450495-A2 (EP)
Inventor: HIBI TOSHIFUMI
IPC: F16H61/06
Filed: 1991-03-27
Abstract: A hydraulic control system for a continuously variable traction roller transmission comprises a shift control valve for controlling hydraulic pressure within a hydraulic cylinder apparatus. The shift control valve includes a sleeve and a spool received therein for relative motion, which assume a normal state when a gear ratio commanded corresponds to a rotational displacement of rotation shanks of roller support members wherein the hydraulic cylinder apparatus provides a predetermined force to the rotation shanks in an axial direction thereof so as to preserve a rotational displacement of the rotation shanks. The sleeve has a plurality of bores for discharging hydraulic fluid to be supplied to the hydraulic cylinder apparatus. The bores are fluidly communicated when a relative displacement between the sleeve and the spool with regard to the normal state is greater than a predetermined value, whereas the bores fail to be fluidly communicated when the relative displacement is smaller than the predetermined value.
Patent EP-0467196-A2 (EP)
Inventor: KRANITZKY WALTER DR
IPC: G01D5/249
Filed: 1991-07-09
Abstract: A pseudo-random code PRC of n-bits length, shown diagrammatically in Figure 1 on a material measure (1), is read by a detector element (2) having n sampling fields. The signal combination read is supplied to a comparator circuit (3) which compares this instantaneous input code with the variable content of a shift register (4). Depending on the result of the comparison, the content of the shift register (4) and the count of a counter (5) synchronised with the shift register (4) are changed or not changed. Since the shift register (4) and the counter (5) are synchronously controlled, the relation between the content of the shift register (4) and the count of the counter (5) is unambiguous. The output signals of the counter (5) produce the binary code corresponding to the pseudo random code PRC and thus the absolute position of the material measure (1) relative to the detector element (2). <IMAGE>