baber/WOPTO huggingface dataset:
Patent EP-0449535-A2 (EP)
Title: Core slider for rigid magnetic disc drive, and method of producing the same
Inventor: MATSUZAWA SOICHIRO
IPC: G11B5/60
Filed: 1991-03-22
Abstract: A core slider for a rigid magnetic disk drive, including a slider body having air bearing portions, and a core chip which has a magnetic gap (40) for writing and reading information and which is integrally secured to the slider body. The slider body (14, 82) consists of a ferrite section (30) which includes at least the air bearing portions (18, 80) and which is formed of Mn-Zn ferrite, and a non-magnetic ceramic section (32) formed of a non-magnetic ceramic material. The core chip (24, 76) is accommodated in a groove (26, 72) formed in the slider body and bonded to the slider body by a glass material. Also disclosed is a method of producing the core slider.
Patent EP-0470784-A2 (EP)
Inventor: KELLER EDWARD M
IPC: H01L21/3213
Filed: 1991-08-02
Abstract: An apparatus and method for selectively depositing a thin film by projecting geometric features on a semiconductor wafer. Semiconductor wafer (17) is mounted in a chemical vapor deposition chamber (18) that has a projection means. A gas species is injected though gas input (19).and travels across wafer (17) to exhaust port (21). The gas species has a low photodissociation energy level so that when exposed to an ultraviolet light source deposition on the semiconductor wafer (17) takes place.
Patent EP-0478137-A2 (EP)
Inventor: STEWART WILLIAM JAMES
IPC: G01N21/21
Filed: 1991-08-19
Abstract: An optical sensor includes a resonant mirror device 1, and a prism 2 disposed adjacent the device for coupling a beam of light into the device 1. The device 1 and the prism 2 are mounted on a rotatable platform. A beam of light is produced by He-Ne laser 3 and is linearly polarized with equal TE and TM components by a polarizer 4 arranged at 45° to TE and TM axis. A lens 6 is arranged in the path of the linearly polarized beam of light for focussing the beam of light onto the device thereby providing simultaneously a range of angles of incidence at which the beam of light can be coupled into said device. The platform on which the device 1 and the prism 2 are mounted, is rotated to a position, at which the angle of incidence of beam of light coupled into the device is such that a resonance is excited in said device for at least one of said components. The beam of light reflected from the device is passed through an analyser 11 arranged at 90° to the polarizer 4. On resonance of one or both components, one component is phase shifted to the other between 0 and 2 radians. The beam in this case will be elliptically polarized light and at least a component of light will be passed by the analyser 11 and will be projected as a bright band on a viewing plane. When the phase shift is radian, the beam is linearly polarized, but in the plane of the transmission axis of the analyser and so all the light is transmitted by the analyser.
Patent EP-0473414-A2 (EP)
Inventor: LAU-KEE DAVID C O CANON RES CE
IPC: G06T11/00
Filed: 1991-08-28
Abstract: Apparatus for image processing which comprises a display (1) and controller (2), a CPU (3) connected to accept user instructions from a mouse (4), an image processor (5) arranged to process image data and a memory (6) for storing image (and other data). A user can specify a sequence of image processing operations on the display (1) using the mouse (4), and interactively modify the sequence depending on the displayed image. The apparatus operates three independent routines ("virtual machines"); a user interface routine accepting instructions and updating the screen display; a sequence evaluation routine constructing a table (20) representing the sequence graph, and evaluating the table (20) to generate corresponding image processing instructions for the image processor (5); and the image processing routine executing specified image processing operations and storing the result in the memory (6) to be accessed for display. Evaluation only occurs after an output is required.
Patent EP-0475646-A2 (EP)
Inventor: SAUL PETER HENRY
IPC: H01L21/3205
Filed: 1991-08-30
Abstract: A semiconductor integrated circuit chip is provided comprising a substrate 1, a dielectric layer 3, deposited on the substrate 1 and one or more conductive tracks 4, 5 formed on the dielectric layer 3, at least part of the dielectric layer 3 which is along at least one edge of the conductive tracks 4, 5 and which is adjacent to the part of the dielectric layer 3 which underlies the conductive track 4, 5 being etched away to form an air gap 16 in the region where fringing fields and/or lateral fields exist, thereby to reduce the stray interconnection capacitance between the conductive tracks 4,5 and the substrate 1 (Figure 2).
Patent EP-0486189-A2 (EP)
Inventor: MONROE KEVIN THOMAS
IPC: G02B6/38
Filed: 1991-11-04
Abstract: An optical connector comprises an alignment ferrule (11) receiving a plunger (38) and receiving an insert (35) between the plunger (38) and a constriction (32), the plunger (38) being constructed to receive an optical fiber (3) and a buffer (4) covering the optical fiber (3) and the plunger (38) and the insert (35) being constructed for movement forwardly to compact the insert (35) in the constriction (32) and to apply compression concentrically on the optical fiber (3).
Patent EP-0517137-A2 (EP)
Inventor: SUZUKI HIROSHI
IPC: G11B5/02
Filed: 1992-06-01
Abstract: A magnetic head is disclosed which forms longitudinal magnetic field distribution (namely, spatial distribution with respect to the magnetic field in a longitudinal recording direction) made up of a narrow region corresponding to a narrow track width and a broad region for reinforcing the narrow portion. Such spatial distribution can be realized by spacing broad surface portions on both sides of that central surface portion of pole face which defines the narrow track width, apart from the air bearing surface of the magnetic head for a recording medium. Alternatively, the spatial distribution may be realized by making the magnetic path of the magnetic head of a plurality of materials (8, 9) different in saturated magnetic flux density from each other, or by forming main magnetic poles (10, 11) for defining the small track width, independently of magnetic poles (12, 13) for reinforcing a magnetic field formed by the main magnetic poles.
Patent EP-0539780-A2 (EP)
Inventor: FINKENAUER HARRY DIPL-DES
IPC: A47F3/00
Filed: 1992-10-08
Abstract: A sales counter has a counter body and an upper structure which serves for fastening a rotatable or displaceable front pane and on whose upper edge at least one payment/article shelf is secured which is separate from the front pane. The payment/article shelf is adjustable in height and/or at least partially horizontally and has the same or a smaller width than the front pane.
Patent EP-0563789-A2 (EP)
Inventor: PERSSON DAN
IPC: H01R35/02
Filed: 1993-03-25
Abstract: A device for the transmission of signals between two terminals is specified, between which terminals there is arranged a line which is coiled and is accommodated in an essentially circular cassette. At least one of the two terminals can be moved relative to the other one. The cassette is composed of two parts, a fixed stator (11) and a rotatable rotor (12). On the stator (11) there is mounted a holding element which is subjected to the resistance of a spring and is fastened, under tension, to the rotor (12) by its free end when the cassette is in the assembly position. The holding element can be released from the rotor (12) by rotating the latter, so that when the cassette is in its operating position, the holding element, which is not under tension, is at a distance from the cassette, being separated from it by a gap.
Patent EP-0568058-A2 (EP)
Inventor: BAUER MANFRED
IPC: B23B31/02
Filed: 1993-04-29
Abstract: In a device (V) for converting a pillar drilling machine for milling, with a drilling spindle (S) not axially bored the full length, in which a Morse-taper tool holder (2) is provided in the free end (1, 1') of the drilling spindle (S), which Morse-taper tool holder (2) intersects a cross slot (3) of the drilling spindle (S), an auxiliary clamping member (H) is provided which can be secured in or on the drilling spindle (S) in the direction of the spindle axis, with which auxiliary clamping member (H) a milling-cutter mounting arbor (D) inserted in the tool holder (2) can be axially clamped in place on the drilling spindle (S) in addition to the Morse-taper push-in connection. <IMAGE>
Patent EP-0598225-A2 (EP)
Inventor: MENKEN JOHN
IPC: A61N1/37
Filed: 1993-10-15
Abstract: A capacitor charging circuit (10) charging defibrillation capacitors (C1,C2) in a constant period of time regardless of battery (12) voltage by employing a controlled duty cycle charging technique. The defibrillation capacitors are charged in a piecemeal manner through a transistor and flyback transformer circuit (16). The gate of the transistor is driven by a constant frequency pulse train inverter (14) drive signal in which voltage is conveyed to the capacitors (C1,C2) during one-half of the full cycle of the pulse train. The primary of the transformer is controlled by each pulse of the inverter (14) drive signal so that the secondary of the transformer supplies current to the defibrillation capacitors (C1,C2) during the off half cycle of the drive signal, the charge being built up in the defibrillation capacitors (C1,C2) incrementally during the off half cycle of the inverter (14) drive signal until the predetermined voltage is reached.
Patent EP-0561587-A2 (EP)
Inventor: FISHER LYNN EDWIN
IPC: H02K11/00
Filed: 1993-03-15
Abstract: A two compartment motor (10) has a frame (16), a pair of end shields (12,14) disposed adjacent opposing ends of the frame to define a first compartment, a stator winding supported by the frame within the first compartment, an armature rotatably supported by the end shields and disposed within the first compartment adjacent the stator winding, a cover (22) mounted to the motor adjacent one of the end shields to define a second compartment between the cover and the end shield, and a control plate mounted within the second compartment. The control plate serves as a mounting surface for securing a plurality of electrical components used in the control and operation of the motor in position within the second compartment. The control plate is a molded plastic component having integrally formed mounting mechanisms for at least one of the electrical components. The electrical components may include a starting capacitor, voltage and/or speed control switches, an overload device and electrical terminals. Ventilation openings, lead openings and shields may also be integrally formed in the control plate. The plate may be provided with recesses to accommodate electrical connectors, a centrifugal switch and other components. A method of assembling the motor includes mounting the plurality of components to the control plate to form a sub-assembly prior to connecting this sub-assembly to the other components of the motor.
Patent EP-0570206-A2 (EP)
Inventor: RAGSDALE CHARLES
IPC: H02H1/00
Filed: 1993-05-12
Abstract: An arc detector for detecting electrical arcs across a break in a line carrying a current in an electrical system. Normally, the line carries current, but when the line is broken, current doesn't flow until an arc occurs across the break. The arc detector detects the break using a current sensor for measuring the current, a filter for filtering out unwanted frequencies, an amplifier for amplifying the remaining frequencies into a substantially square wave, a counter for counting square wave transitions, and a latch to hold a detection signal at an output node when the counter counts a preset number of square wave transitions without being reset by a reset switch or a periodic oscillator.
Patent EP-0575066-A2 (EP)
Inventor: TODD STEPHEN JAMES PAUL
IPC: G06F11/07
Filed: 1993-06-01
Abstract: A system and method are disclosed for handling errors in a state-free manner. A digital data processing system is provided which is operable in a state-free manner and has an output generator 90 for generating an output manifestation 100 of a model. An object generator 30 within the system is used to generate objects 250 describing the model, each object being then stored in an object memory 60. If an error occurs during generation of an object, an error reference 260 is then generated within that object. This error reference 260 provides identifying information for an error object 300, the error object 300 being stored in an error memory 70 and containing error details for that object. By such an approach the errors are handled in a state-free manner and can be readily retrieved when required.
Patent EP-0601853-A2 (EP)
Inventor: ITOH CHIKASHI
IPC: H04L49/111
Filed: 1993-12-08
Abstract: In a line accommodation circuit for use in combination with a cell exchange apparatus to carry out a conversion operation of a sequence of input data signals into a sequence of asynchronous transfer mode cells sent to the cell exchange apparatus, first and second function systems which are identical in structure with each other are supplied with the input data signals in parallel and are switched from an active system to a standby system by a switching operation indicated by a system controller. During the switching operation, the active system stops the conversion operation and produces the asynchronous transfer mode cells left therein while the standby system starts the conversion operation to produce a following asynchronous transfer mode cell. A test cell is inserted in the active system after a last one of the asynchronous transfer mode cell held in the active system and placed in the standby system before a following asynchronous transfer mode cell following the last asynchronous transfer mode cell. The test cell is at first detected by the standby system and thereafter detected by the active system. When the test cell is detected by both the active and the standby systems, the next asynchronous transfer mode cells succeeding the following asynchronous transfer mode cell are sent from the standby system which is rendered into a new active system. The active system which interrupts the conversion operation is rendered into a new standby system.
Patent EP-0597777-A2 (EP)
Inventor: KRAUS JR ROBERT P C O EASTMAN
IPC: B01J19/10
Filed: 1993-10-27
Abstract: The disclosure is a sampling device (4) and method used to remove bubble free samples from a bubble laden liquid. The device includes a power supply (10), a transducer (6) and a sampling probe (5). The power supply (10) converts normal line voltage to 20 kHz electrical energy. This high frequency electrical energy is converted to mechanical vibrations via the piezoelectric transducer (6). These mechanical vibrations propagate down the sampling probe (5) and emanate from the tip of the probe in the form of ultrasonic waves. The ultrasonic waves emanating from the probe tip serve to push away air bubbles from the vicinity of the tip. This allows the removal of a bubble free sample from the bubble laden liquid for further analysis.
Patent EP-0616260-A2 (EP)
Inventor: TAKEI TETSUYA C O CANON KABUSH
IPC: G03G5/08
Filed: 1994-03-14
Abstract: To provide an electrophotographic light-receiving member having a good initial-stage electrophotographic performance and also having a good durability especially in an environment of low humidity, the light-receiving member comprises a support 101, a photoconductive layer 103 formed on the support and formed of a non-monocrystalline material mainly composed of silicon atoms, and a surface layer 104 formed of a non-monocrystalline material constituted of silicon atoms, carbon atoms, nitrogen atoms and hydrogen atoms in which silicon atoms having at least one bond to a carbon atom are in a percentage of at least 50 atom% based on the whole silicon atoms in the surface layer.
Patent EP-0624950-A2 (EP)
Inventor: HANKE III C CHRISTOPHER
IPC: H03K3/356
Filed: 1994-03-17
Abstract: A delay matching circuit has a first node (48), a second node (50), a first loading circuit (54, 56), a second loading circuit (58, 60), a third loading circuit (64) and a buffer circuit (62). The first loading circuit couples a first logic state to the first node responsive to a first state of a control signal. The second loading circuit couples a second logic state to the first node responsive to a second state of the control signal. The buffer circuit electrically couples the first and second nodes. The first loading circuit, second loading circuit and buffer circuit are characterized by a first, a second and a third predetermined electrical impedance, respectively. The third loading circuit is coupled to the second node and is characterized by a fourth predetermined electrical impedance. The disclosed delay matching circuit propagates a clock signal input with a delay equal to the Clock-to-Q delay associated with a flip-flop constructed with similar circuit elements. The disclosed delay matching circuit is useful in circuits, such as phase locked loops, where the simultaneous propagation of two signals is critical.
Patent EP-0630756-A2 (EP)
Inventor: HASEGAWA KATSUNORI C O BROTHER
IPC: B41J32/00
Filed: 1994-06-22
Abstract: An exchangeable tape unit having a tape spool and a printing tape wound over the tape spool. The printing tape can be prevented from being exposed to light, and the exchangeable tape unit being capable of maintaining stabilized quality for long duration without color change and quality change in a heat sensitive coloring layer formed in the printing tape, and being capable of facilitating storage. The heat sensitive coloring layer constituting the printing tape is positioned radially inwardly when winding the tape over a tape spool. Film sheets are affixed to upper and lower faces of a resultant tape roll of the printing tape.
Patent EP-0645689-A2 (EP)
Inventor: ICHINOSE KAZUSHIGE
IPC: G06F1/08
Filed: 1994-07-15
Abstract: A clock supply system for electronic devices that require various operating clock signals of different frequencies, for instance a computer, uses a single quartz oscillator (1, 204) to generate a low-frequency (e.g. 32.768 kHz) base clock signal which is supplied to plural PLL circuits (11 - 16) that generate the required operating clock signals fed to various units (5 - 10) of the electronic device (4). The PLL circuits are independent from but preferably arranged near to the units they supply. The quartz oscillator is part of a real-time clock module (2) or a clock generator module.
Patent EP-0647026-A2 (EP)
Inventor: FUJIHARA TATSUHIKO C O FUJI EL
IPC: H01L27/04
Filed: 1994-09-30
Abstract: To prevent the oscillation which often occurs in an over current protection device for an insulated gate controlled transistor, an over current protection device is provided which improves the response in current detection to prevent the oscillation and improves protection speed against over current by
     separating the gates of a main transistor (10) and a current detector transistor (20);   setting the time constant for the gate circuit of the detector transistor (20) shorter than that of the gate circuit of the main transistor (10);   feeding a detection signal (Vd), obtained with current detecting means (Rd) which detects the current (i) of the detector transistor (20) proportional to the current (l) flowing through the main transistor (10), to control means (50); and    controlling the transistors (10, 20) to protect the transistor (10) from the over current by feeding the comparison output Sd from a comparator circuit (30), which compares the voltage of the detection signal (Vd) with a reference voltage (Vr), to the control circuit (40).
Patent EP-0649723-A2 (EP)
Inventor: HOLZSCHUH JOHANN
IPC: B29C45/67
Filed: 1994-10-14
Abstract: A hydraulic actuation system for injection-moulding machines is proposed, having a hydraulic pump 14 and a plurality of hydraulic drives 1 to 6, which can be connected thereto in a selectable number and sequence via a hydraulic line network 13 and valves 7 to 12. For working with good efficiency and low operating costs, it is proposed   - that the hydraulic pump 14 is designed as a constant feed pump having a volumetric delivery (displacement) and/or delivery pressure which corresponds at least to the maximum consumption (absorption) of all the hydraulic drives 1 to 6, - that the hydraulic pump 14 can be driven by an electric motor 15 which can be controlled in its speed infinitely variably (steplessly) - or else at least with many steps - over a predetermined speed range, - that the volumetric delivery (displacement) and/or the delivery pressure can be adapted by the maximum drive speed of the electric motor 15 to the maximum consumption and/or to the maximum consuming pressure of all the hydraulic drives 1 to 6, - and that the speed for the electric motor 15 can be controlled proportionally with respect to the consumption and/or the consuming pressure of the respectively actuated hydraulic drives 1 to 6.
Patent EP-0629790-A2 (EP)
Inventor: LUNDSTROEM BO
IPC: F16D25/08
Filed: 1994-03-07
Abstract: A device for transmitting torque between two rotatable, coaxial shaft members (1, 2) in a stationary housing (4) has a clutch (11, 12) engageable to counteract differential rotational speed between the shaft members. A hydraulic clutch piston (14) is arranged to engage the clutch, and a hydraulic pump arrangement (1', 18 - 21, 11'', 14 - 17), driven by the speed differential between the two shaft members, creates a hydraulic pressure on the clutch piston. The hydraulic pump arrangement includes a supply piston (18) and the clutch piston. Rollers (17, 21) are rotatable with one of the shaft members (2) and engage the other of the shaft members (1) via cams (1', 11''), which are angularly offset in relation to each other, so as to impart to the pistons a reciprocating movement at the differential rotational speed between the shaft members. A hydraulic line system (25, 27, 29, 31) connects a cylinder (23) at the supply piston on one hand with the tank (24) via a check valve (26) and on the other hand - via a line (27) with a check valve (28) - with an outlet line (31) and connects a cylinder (30) at the clutch piston (14) with the outlet line.
Patent EP-0645883-A2 (EP)
Inventor: WONG STEPHEN
IPC: H03F3/343
Filed: 1994-09-15
Abstract: A wideband amplifier circuit provides high current gain and a wide bandwidth by employing only NPN transistors, which have better high-frequency characteristics than those of PNP transistors, in the signal path. Wideband current amplification is achieved using NPN transistors in a current-mirror configuration, with base-emitter voltage matching to permit the current gain to be easily set as a function of transistor area. The wideband amplifier circuit can also be used in a differential wideband amplifier configuration to obtain a combination of high current gain, wide bandwidth and wide output swing.