baber/WOPTO huggingface dataset:
Patent GB-2277650-A (GB)
Title: High frequency amplifier
Inventor: SUGAWARA JUN
IPC: H04B1/40
Filed: 1994-04-15
Abstract: A high frequency amplifier has an amplifying transistor 1 whose operation mode can be selectively switched between active and inactive modes. A switch such as switching transistor 2 selectively grounds the base of the amplifying transistor 1, a resonant circuit 8 is connected to the collector of the amplifying transistor 1, and a diode 7 is inserted in a circuit path of the resonant circuit 8 so that the collector current of the amplifying transistor 1 flows through the diode 7. When the amplifying transistor 1 is in the off state, the diode 7 is also in the off state and thus the diode acts as a capacitor having a small capacitance, whereby the resonant frequency of the resonant circuit 8 becomes significantly higher than the resonant frequency that is obtained when the amplifying transistor 1 is in the on state. In the inactive operation mode, therefore, the signal frequency component is attenuated to a sufficiently low level by the resonant circuit 8 having a resonant frequency higher than the signal frequency. The amplifier may be used as an RF amplifier (23, Fig 1) in a transmitter (20) of a transmitter/receiver communication system. Switching between the transmitter (20) and the receiver (21) is obtained by a transmit/receive signal (38). The communication system may be a time division multiplex system. <IMAGE>
Patent GB-2281962-A (GB)
Title: Heating and humidifying air
Inventor: LAMBERT HANS
IPC: H05B3/58
Filed: 1994-09-07
Abstract: A heat and moisture exchanger, which is intended to be connected to a patient to humidify and warm the air inhaled by him, comprises a heat and moisture exchanger unit (12) which consists of a plurality of axially oriented layers and a warming device (16) disposed adjacent thereto to increase the heat supply to the air inhaled. The exchanger further includes a humidifying device (18) to increase the humidity of the air inhaled. The humidifying device includes a diffusion rod bearing on one end surface of the heat and moisture exchanger unit, the length of the diffusion rod preferably being substantially equal to the radial extension of the heat and moisture exchanger. The warming device (16) is disposed between at least two layers of the exchanger. <IMAGE>
Patent GB-2293702-A (GB)
Title: Contactless electrical power coupling and converter
Inventor: PACE STEVEN DAVID
IPC: H01F38/18
Filed: 1994-09-27
Abstract: The coupling comprises a primary air-cored centre-tapped inductance coil 1, inductively coupled to a load, and driven by an oscillatory resonant tank circuit 1a, 1b, 2, two switching transistors 5a, 5b each coupled to a respective side of the tank circuit; and a current source such as +Vin, 0v connected by the switches across alternate sides of the tank circuit at its resonant frequency. A drive circuit is arranged such that in use the current through the primary coil is at least twice the current through either of the switches. The switches 5a, 5b may be bipolars, FETs, IGBTs, or GTO thyristors and are controlled by FETs 12a, 12b alternately switched by an oscillator. An alternative embodiment (Fig 2) has a single primary coil (21) having either side supplied via chokes (23a, 23b). Seventeen drive circuits are located in a housing (35, Fig 3) attached to the contactless coupling which is in the form of a rotary joint (31) having seventeen primary coils Z (37) and seventeen sets of secondary coils (41) having two parts and conductive spacers (42) limiting cross-coupling between adjacent pairs of primary and secondary windings. Uses are in robot arms, radar antennae and spacecraft. <IMAGE>
Patent GB-2283317-A (GB)
Title: Tolerance database for PCB automatic optical inspection system
Inventor: GERBER HEINZ JOSEPH
IPC: G01N21/956
Filed: 1994-10-25
Abstract: A printed circuit board (PCB) defect detection system generates a reference database PCB image having tolerances for each individual PCB feature. A nominal database 24 corresponding to the dimensions of the original design comprises a black and white two-state pixel array. Two tolerance databases are created from the nominal database 24 using the maximum and minimum allowable feature dimensions 26 and 28. The three databases are compared at 30 to produce two tolerance transition databases indicative of black transition states and white transition states, respectively, of regions at the edges of the black and white areas. Consequentially pixels can have one of four states. Each pixel is assigned a weight according to its state, and the pixel weight is summed in arrays of adjacent pixels to determine defect threshold levels. <IMAGE>
Patent GB-943630-A (GB)
Abstract: 943,630. Laminates. PERMALI Ltd. Dec. 23, 1959 [Dec. 30, 1958], No. 42098/58. Heading B5N. Laminated electrical insulating material comprises wood veneers vacuum-impregnated with a thermosetting synthetic resin interleaved with glass fibre material impregnated with the same or a second thermosetting synthetic resin, the assembly being subjected to heat and pressure. The glass fibre material may be in the form of a woven cloth. The wood veneers and glass fibre cloth may be impregnated with an aqueous or alcoholic solution of phenol-formaldehyde resin, or the glass fibre cloth may be impregnated with a second resin, e.g. an epoxy resin. The resin-treated layers may be partly cured by heating before assembling into a stack. The product is suitable for tie-rods or pull rods for high-voltage gear, or railway fish plates.
Patent GB-2286687-A (GB)
Title: Oversampled logic analyzer
Inventor: SAUERWEIN TIM E
IPC: G06F11/25
Filed: 1995-02-14
Abstract: A logic analyzer acquires all data and clock signal inputs asynchronously at high speed using a digital FISO (10) to produce a plurality of parallel high-speed data samples within each cycle of an internal System clock (95). The plurality of parallel high-speed data samples describe the sequential behavior of one of the input signals during one period of the internal system clock. One of the plurality of parallel high-speed data samples is then selected to be the single data sample that is stored in the acquisition memory (80) for that clock cycle. The selection process includes a skew adjustment (20), clock edge detection and selection (50), aligning the sample associated with the detected and selected clock edge to a reference location (60), and selecting (70) as the single sample to be stored a sample having a relationship to the reference location that is determined by setup and hold adjustment data. Extra bits of timestamp information generated by this process. A completely digital and synchronous glitch detector (200) monitors the parallel high-speed data samples after they are skew adjusted and associated with a clock edge and from them produces enhanced glitch signals. A setup and hold violation checker (100) detects transitions (102) in the input signal from the parallel high-speed data samples after they are skew adjusted and associated with a clock edge. The transitions detected are enabled (102) and ORed (108) to produce a setup and hold violation signal only if they are within the interval established by a set of setup and hold window mask signals. <IMAGE>
Patent GB-2298142-A (GB)
Title: Ball position marker
Inventor: SIMMONDS DENNIS EDWIN
IPC: A63B57/00
Filed: 1995-02-21
Abstract: A golf ball position indicator which enables the area a ball is lying in to be clearly indicated comprises a ribbon 1 with a weighted end 2.
Patent GB-2287115-A (GB)
Title: Radio controlled toy
Inventor: KAKIZAKI KATSUMI
IPC: A63H30/04
Filed: 1995-03-03
Abstract: A radio controlled toy is provided including a controller and a toy body. The controller includes a microphone (18) for collecting external sounds, a pulse generating section (32) for generating a pulse signal when external sounds are collected by the microphone (18), a sequence circuit (33, 34) for generating a control signal selected from a plurality of sequential control signals, the sequence circuit (33, 34) switching control signals to a next sequential control signal when a pulse signal is generated by the pulse generating section (32), and a modulation circuit (35) for transmitting a radio signal modulated by the control signal. The toy body receives the radio signal and performs an operation selected from a plurality of operations based on modulation of the radio signal. Alternatively, the sequence circuit can be in the toy body. <IMAGE>
Patent GB-2300752-A (GB)
Title: Bonding wire for semiconductor devices
Inventor: TOBIYAMA TAEKO
IPC: B21C9/00
Filed: 1995-05-12
Abstract: A bonding wire for semiconductor devices is manufactured by a process which includes applying a lubricant to a wire and taking measures to ensure good adhesion between the lubricant and the wire. In particular wire may be cooled to directly after final annealing at a rate of 1000{C/sec. or more. Alternatively, the wire may be withdrawn form the lubricant solution at an angle of between 50 and 60{ to the surface of the solution. In a yet further alternative the wire is given a surface removal treatment after annealing.
Patent GB-2302062-A (GB)
Title: Picture album having ribbed connectors received in slotted and grooved spine end blocks
Inventor: TSAI MINGEN
IPC: B42D1/08
Filed: 1995-06-12
Abstract: The album includes a spine 10 having a block 11 with slots 111 at one end and a block 12 with grooves 121 at the opposite end. Picture holders 40 are mounted on the spine by means of connectors 20 having a longitudinal rib 21 on one side, inserted into the slots and grooves, and a channel-like clamping plate 23 on an opposite side. A cap 30 fastens to end block 11 to hold the connectors 20 in place.
Patent GB-2294006-A (GB)
Title: Bearing press
Inventor: TABAIN GEOFFREY
IPC: B23P19/02
Filed: 1995-10-11
Abstract: A bearing press for locating or removing a component (15, 79), such as a bearing, onto or from a shaft (14, 81) comprises:     i. an upright support frame (4, 44); ii. a pressure means (6, 46) for applying downward pressure to the shaft (14, 81); and iii. a support means (1, 41) for supporting the component (15, 79).     Two embodiments are disclosed. The portable press (Fig. 2) comprises a threaded mounting 5 designed to receive a threaded shaft 6. The support means comprises a pair of support arms 1 pivotally mounted to the support frame. In the pedestal press (Fig. 8) the upright support frame 44 is in the form of a rectangular-section member having side walls 61 supported by a base section in the form of two forwardly and two rearwardly directed members 47. This pedestal press comprises a pressure means 46 which is hydraulically operated. <IMAGE>
Patent GB-2298490-A (GB)
Title: Rolling bearing unit with rotating speed sensor
Inventor: MIYAZAKI HIROYA
IPC: G01P1/00
Filed: 1996-03-01
Abstract: In a rolling bearing unit with a rotary speed sensor 20 and comprising a stationary outer ring member 8, a rotatable inner ring member 5, a plurality of rolling elements 11 between the outer and inner ring members, a cylindrical magnetic tone wheel 13 having a fixing portion 14 fitted onto the inner ring 5, and a cover 18 in the form of a synthetic resin block 21 and a metal portion securely mounted on the outer ring 8 with an annular sensor embedded in the resin block so as to be opposed to the tone wheel 13, the latter has a cylindrical detecting portion 15 provided concentric with the fixing portion 14 and formed with equally spaced cutouts 31, a stepped portion 16 linking the fixing and detecting portions, and one or more engagement portions 37 arranged in a single circle and projecting radially inwards from the fixing portion 14 so as to abut the end face of the inner ring 5 and define the position of the tone wheel with respect to the inner ring 5. A number of embodiments are described.
Patent GB-2299962-A (GB)
Title: Press for working material
Inventor: COULTISH RONALD
IPC: B44B5/00
Filed: 1996-04-22
Abstract: A material working press which comprises a rotary input drive (11), first and second die carriers which are relatively movable between a release position and a forming position effective against a blank of material inserted between the die carriers, and a linkage (14) which couples together the input drive (11) and one of said die carriers (12) to effect linear reciprocation of said one die carrier, upon rotation of said input drive (11), and in which said linkage (14) comprises: ```a two-part hinged link (15, 16) having a first part (15) which is eccentrically connected at its free end (16) to said input drive (11), and a second part (17) pivotally connected at its free end (18) to said one die carrier (12); ```a two-armed rocker (20) pivotally mounted to carry out rocking movement about a fixed axis (21); ```a first link arm (24) pivotally connected at one end to one arm (22) of said rocker (20), and pivotally connected at its other end via a crank arm (25) to the input drive (11); and ```a second link arm (26) pivotally connected at one end to a second arm (23) of said rocker (20), and pivotally connected at its other end to a hinge connection (19) between the first and second parts of said two-part hinged link (15, 17).
Patent GB-2300175-A (GB)
Title: Support apparatus for a container of fluid
Inventor: SKELTON KENNETH
IPC: B65G7/08
Filed: 1996-04-29
Abstract: In a support apparatus for a container of fluid, comprising a tilting member (12) pivotally mounted on a base (11), first (14,15,16) and second (35) resilient biasing means are arranged, in use, to urge the tilting member to pivot with respect to the base in opposing pivotal directions, to damp down the tilting action of the member (12) which is resiliently lifted as the container is emptied. The tilting effect of the means (14,15,16) may alternatively or additionally be retarded by adjustable stops (17,19) restricting the biasing means effect, or by friction bearings (26) or a compression spring (24) resisting pivoting of the member (12).
Patent GB-2313250-A (GB)
Title: Managing system resources in a multimedia conferencing network
Inventor: BOSCOVIC DRAGAN
IPC: H04N7/15
Filed: 1996-05-17
Abstract: A network service controller 305 has a control channel 307 by means of which the activity level of the stations 301, 303 participating in a multimedia conference call is monitored 309. Parameters monitored to determine activity include station identities, activity status of transmitting and receiving stations, transmission mode and quantity of information exchanged, duration of use, and other parameters such as prioritized conferencing information. The monitored level of activity is compared 315 with information in a history file 325 to determine if any changes have taken place, such as number of participating stations, mode or duration of transmission. If a change is detected, the history file 325 is updated. An activity list is created 323 as a prioritized compilation of each stations present status, prioritization being based on priority station or user status, priority conferencing traffic, or increased bandwidth requirements. If a check 327 reveals that activity has increased, bandwidth resources must be reallocated and this most often involves changing the bit rate of various multimedia modes used by various stations. If activity has not increased but a second check 331 reveals that a transmitting station has exceeded its predetermined transmit time or other resource parameters, resources must again be reallocated. Thus, the bandwidth of a station that has exceeded its network parameter limit must be adjusted. If a station is not using certain resources, eg. its audio capabilities, the bandwidth used for the latter can be reassigned to another station having priority. Bandwidth reductions may also be effected by reducing resolution or update rate of video blocks, eliminating textual or graphics capabilities or any combination of these. Stations may be linked via wires, radio or infrared.
Patent GB-2301704-A (GB)
Title: Introducing ions into a high-vacuum chamber, e.g. of a mass spectrometer
Inventor: FRANZEN JOCHEN
IPC: H01J49/42
Filed: 1996-05-31
Abstract: The invention consists of using an RF multipole ion guide 8 in a differential pumping stage 7. The ion guide ends at the wall 9 of the high-vacuum chamber 13 and is terminated there by a lens. In the wall of the high-vacuum chamber, there is only a very small hole through which primarily only thermalized ions can pass. This hole, together with apertures 10, 11, defines the lens. The voltages at the lens can be utilized to switch passage of ions into the chamber 13 on and off. The movement of the ions is automatically damped in the ion guide due to the residual gas pressure in the differential pump stage. The source of ions may be an electrospray source, as shown, or an ICP source. The high-vacuum chamber may house a mass spectrometer, e.g. a quadrupole ion trap, a quadrupole filter, a time-of-flight spectrometer or an ICR Spectrometer.
Patent GB-2305144-A (GB)
Title: Strip casting using nozzle with side openings
Inventor: SHOOK ANDREW ARTHUR
IPC: B22D11/18
Filed: 1996-07-29
Abstract: A metal delivery nozzle 19 for delivery of molten metal to the nip between casting rolls in a twin roll caster to establish a casting pool supported above the nip is defined by an open topped trough which receives molten metal from a distributor. The bottom of the trough is closed and the nozzle has side openings 64 and two large end openings for delivery of molten metal from the trough into the casting pool. The side openings are longitudinally spaced circular holes disposed between unperforated end regions of the nozzle.
Patent GB-2316717-A (GB)
Title: Water fountain apparatus
Inventor: HARTWELL ALEC WHITAKER
IPC: B05B17/08
Filed: 1996-08-27
Abstract: A recirculating water fountain apparatus (10) comprises a hollow-walled bowl (12) defining a pool (14) for collecting water ejected through a ring of outlets (36) around the rim (20), the outlets being supplied with water from a completely enclosed chamber (26) defined by the walls (16,18,22,24) of the bowl. A pump (28) disposed in the pool (14) or in the chamber (26) withdraws water from the pool and delivers it under pressure to the chamber (26). An additional outlet in the centre of the bowl may be fed by the pump, the latter having a jet flow-adjuster.
Patent GB-2306523-A (GB)
Title: Bottle trap
Inventor: COLLINS BRIAN DONALD
IPC: E03C1/29
Filed: 1996-11-01
Abstract: A bottle trap comprises a chamber 52 having an inlet 54, an outlet 56 and a substantially right-angled outlet tube 58 which extends downwardly into the liquid layer 62 within the chamber 52 and then opens laterally so that liquid can flow laterally outwards.
Patent GB-2307911-A (GB)
Title: Substituted saturated aza heterocycle inhibitors of nitric oxide synthase
Inventor: DURETTE PHILIPPE L
IPC: C07D207/16
Filed: 1996-12-05
Abstract: Compounds of Formula (I)  wherein the symbols are as defined in the specification, most of which are novel compounds, and pharmaceutically acceptable salts thereof, are useful in the treatment of nitric oxide synthase mediated diseases and disorders.
Patent GB-2321364-A (GB)
Title: Retraining neural network
Inventor: HOBSON PHILLIP WILLIAM
IPC: G06Q30/00
Filed: 1997-01-21
Abstract: A method of managing the processing of information using a first neural network, the information relating to the transmission of messages in a telecommunications network, uses the steps of: (i) monitoring the performance of the first neural network in processing the information; (ii) creating a second neural network of the same topology as the first when a predetermined performance threshold is reached, and (iii) retraining the second neural network while continuing to process the information using the first neural network. If the neural networks are implemented using objects, such retraining can be facilitated by using a persistance mechanism to enable the objects to be stored and moved. Applications in fraud detection.
Patent GB-2323190-A (GB)
Title: Executing nested loops
Inventor: GABZDYL REBECCA
IPC: G06F9/38
Filed: 1997-03-14
Abstract: A loop is defined in terms of a start address, an end address and a number of loop iterations. The processing circuit includes a program counter and a plurality of loop counting elements. Each of the loop counting elements includes a start address register, an end address register, a loop iteration register and means for comparing the value stored in the respective end address register with the output from the program counter. The circuit can execute triangulation looping, i.e. the number of iterations of an inner loop is reduced with each pass through an outer loop. Processing elements are controlled by clocking some on rising edges of clock pulses, some on falling edges and some on both. Circuitry is described for comparing the exponents of floating point numbers to enable normalisation.
Patent GB-2314197-A (GB)
Title: Optical pickup including means to correct astigmatic difference of laser light source
Inventor: LEE CHUL-WOO
IPC: G11B7/1398
Filed: 1997-06-09
Abstract: The optical pickup includes a beam shaping device 120 for changing an oval-shaped light beam emitted from a laser light source 10 into a circular light beam, and an astigmatic difference correcting device 131 for correcting the astigmatic difference of the light is provided. The beam shaping device may be a cylindrical lens 120 arranged between the light source 110 and a beam splitter 140, having a convex cross-section, for converging the incident light, e.g., with respect to an X-axial direction. The astigmatic difference correcting device 131 is an astigmatism lens arranged along an optical path between the cylindrical lens and a light path changing device 140, as a concave lens, for linearly passing light of a certain direction and diverging light of other directions. Alternatively the astigmatic difference correcting means may lie between the beam splitter 140 and a collimating lens 151 (see fig. 7), and the beam shaping device may comprise an arrangement of prisms (see figs. 9-14).
Patent GB-2313911-A (GB)
Title: Acceleration sensor apparatus for vehicles
Inventor: KOKETSU EIJI
IPC: B60R22/26
Filed: 1997-01-30
Abstract: An acceleration sensor for a vehicle is provided in which vehicle acceleration, caused by a collision for instance, causes movement of an inertial body 34 which in turn causes the locking of a seat belt retractor R and the sensor is also capable of locking the seat belt retractor R in the event of the vehicle tilting more than a predetermined angle. A sensor bracket 30 is swingably supported in a sensor housing 10 for rotation about axis O . The sensor housing 10 is fixed to a part of the vehicle body such as a seat back. The inertial body 34 is movably supported in a depression formed in the sensor bracket 30. Upper and lower weights 28 and 72 maintain the sensor bracket 30 in an upright condition so that acceleration of the vehicle in a predetermined direction can be detected regardless of the tilt of the vehicle. If the vehicle tilts by more than a predetermined amount then lobes 70 attached to the sensor bracket 30 engage with a locking member 66 causing a tooth 68 of the locking member 66 to engage a gear 64 of the retractor R and prevent further release of seat belt webbing.