baber/WOPTO huggingface dataset:
Patent EP-0365493-A2 (EP)
Inventor: CROTTI PIER LUIGI
IPC: H01L29/417
Filed: 1989-10-16
Abstract: A process for forming self-aligned metal-semiconductor contacts in a device comprising MISFET type structures essentially comprises conformably depositing a matrix metallic layer on the front of the wafer and the subsequent deposition of a planarization SOG layer. After having used a noncritical mask for defining the "length" of the selfaligned contacts to be formed, the SOG layer is etched until leaving a residue layer on the bottom of the valleys of the conformably deposited matrix metallic layer in areas between two adjacent gate lines of polysilicon. A selective etching of the matrix layer using said SOG residues as a mask, defines the contacts, self-aligned in respect to the opposite spacers of two adjacent polysilicon gate lines. An insulating dielectric layer is deposited and etched until exposing the peaks of the preformed contacts. Over such an advantageously planarized surface contacts on the polysilicon gate lines may be defined by a customary masking process and finally the second level metal is deposited. Notwithstanding the fact that the process normally requires an additional mask in respect to prior art processes, prior art, such a mask is essentially noncritical and the contacts on the silicon substrate are made in an essentially self-aligned manner with remarkable advantages in terms of increased contact area and improved planarization degree of the device, while overcoming lithographic and step coverage technological limitations.
Patent EP-0388683-A2 (EP)
Inventor: KOCH ULF
IPC: B41J25/316
Filed: 1990-03-02
Abstract: A thermal printing head (10) having a housing (12, 14, 16) is described wherein a support (42) carrying a thermal printing plate (26) is mounted to be pivotable about an axis (28) mounted on both of its ends. The thermal printing plate (26) comprises several selectively triggerable heating elements being arranged in a line (36). In the housing (12, 14, 16), a counter-pressure roll (22) is mounted to be rotatable about an axis (20) with respect to which the line (36) heating elements of the thermal printing plate (26) is held in frictional contact along a paraxial generating line. The mounting axis (28) of the support (42) extends to be parallel with respect to the axis of the counter-pressure roll (20) and to be spaced apart from this axis (20). One end of the axis (28) of the support (42) is mounted in the housing (12, 14, 16) to be adjustable in perpendicular direction with respect to the plane formed by the axis (28) and the line (36) of the heating elements.
Patent EP-0400650-A2 (EP)
Inventor: TANIMOTO HIROSHI
IPC: H03F3/45
Filed: 1990-05-31
Abstract: Disclosed is a linearized differential amplifier, comprising connecting input terminals and output terminals of the differential pairs(16) respectively in parallel; arranging N sets of differential pairs(16)(where N is an integer of 3 or more); an offset voltage(17) generating circuit for supplying different and equivalent offset voltages to the respective differential pairs(16); a circuit(18) for weighting these output currents; and a circuit(19) for adding the output currents. Particularly, the offset voltage generating circuit and the weighting circuit carry out equivalent weighting of the offset voltages and the output currents so that change of the differential output current corresponding to change of the differential input voltage shows an equal ripple characteristic. Moreover, to give equivalent offset voltages to the respective differential pairs(16), a linearized differential amplifier where emitter areas in respective differential pairs(16) are different is disclosed. In this case, the ratio of emitter areas is 1 2: 7.872983 and 1:1 when N is 3, and 1:13.40261 and 1 : 2.030215 when N is 4.
Patent EP-0401848-A2 (EP)
Inventor: YOSHIDA AKITO C O INTELLECTUAL
IPC: H01L21/66
Filed: 1990-06-08
Abstract: A tape carrier comprises contact test patterns (3₁, 3₂) used for performing a conduction test on a tape base (2). More specifically, in addition to test pads (3) connected to outer leads used for input/output signals, the contact test patterns (3₁, 3₂) are formed on the tape base to test whether socket contactors (11) are in contact with the test pads (3). A conduction test is performed using the contact test patterns. The tape is repeatedly reset to the socket until a conduc­tive state is established, thereby preventing a test error.
Patent EP-0401850-A2 (EP)
Inventor: LEVEQUE JAMES HOWARD
IPC: H04B1/64
Filed: 1990-06-08
Abstract: A linked compressor-expander (Lincompex) circuit for use in telecommunications utilizes a frequency compensation circuit (56) to frequency shift the total bandwidth of the whole communication channel to eliminate single side band "duck-talk" and data distortion in the transmitting of a complex waveform due to frequency drift or the detuning of the transmitter/receiver system. The demodulator includes an expander (42) for expanding the compressed voice or data signal and a control tone conversion circuit (27) for converting the received control tone into a frequency signal to be used by the expander (42). The control tone conversion circuit (27) also determines the frequency error of a combination information waveform so that the frequency compensation circuit (56) can carry out the proper frequency shifting process. A fading regulator (58) is also provided to remove any audible level variations not removed by the automatic gain control circuitry in the receiver (38).
Patent EP-0392617-A2 (EP)
Inventor: RICHARDS NORMAN DENNIS
IPC: H04N5/85
Filed: 1990-04-09
Abstract: Image data (YUVAR) are received from an image source and separated into luminance (Y) and chrominance (U,V) values. These are DPCM coded (LCO,CCO) to generate separate arrays (LAR, CAR) of delta codes. The arrays (LAR,CAR) are received in a display apparatus  via  a limited bandwidth data channel (120). The data channel may in particular comprise an optical disc reading device. The arrays (LAR and CAR) are then expanded and combined to generate a desired array (DAR) of standard composite code words. By coding luminance and chrominance separately, the chrominance data can be coded at low resolution relative to a display chrominance resolution so as to obtain a faster image update rate with minimal loss of perceived image quality. The expanding and combining can be performed under program control in a standard display apparatus, for example a Compact Disc - Interactive (CD-I) player.
Patent EP-0403016-A2 (EP)
Inventor: ZAMBRANO RAFFAELE
IPC: H01L21/8248
Filed: 1990-06-12
Abstract: The problems normally linked to the creation of a power stage using BJT transistors are overcome realizing the power stage with BMFET transistors.
Patent EP-0426228-A2 (EP)
Title: Apparatus for packaging products
Inventor: EVERS WOUTER
IPC: B65B9/13
Filed: 1990-10-19
Abstract: An apparatus for packaging products in a bag of plastic material comprises means for transporting step by step a continuous tube-like material web (1) with upper and lower layers (2, 3) lying flat one upon the other, a cutting unit (8) for making a cut in the upper layer of the material web, a separating and stretching unit (10) for moving the upper and lower layers away from each other and towards each other, respectively, at the location of the cut, a filling station (9) for filling a formed bag still contained in the material web with the product to be packed and a sealing unit (11) for applying a seal between the upper and lower layers of the material web. The sealing unit makes a strip-like seal extending transverse to the material web and extending in the longitudinal direction of the material web on both sides of the cut. The sealing unit further comprises a cutting means for cutting through the material web at the location of the seal.
Patent EP-0388041-A2 (EP)
Inventor: BALKMAN WILLIAM D C O MINNESOT
IPC: G01V3/10
Filed: 1990-02-27
Abstract: An apparatus for determining the direction to and position of a buried conductor carrying an AC signal. The apparatus employs a unique antenna unit (34) having upper and lower sensors (50,52), each sensor having two orthogonal solenoid coils (54,56,58,60). The signals from these coils, which are representative of the magnetic flux therethrough, are processed to yield corresponding digital values. The numbers are combined in a novel formula to yield a value which has been empirically found to be indicative of lateral position. An appropriate display (40,74) is controlled by the microprocessor (64) according to the sign and magnitude of the positional value.
Patent EP-0388218-A2 (EP)
Inventor: SAKUTA KOJI
IPC: C08G77/38
Filed: 1990-03-16
Abstract: Novel organopolysiloxanes are represented by the general formula:
      where  a  lies in the range 1 ≦ a≦3 and  b , 0.001 ≦ b ≦2, 
R¹ are identical or dissimilar monovalent saturated or unsaturated C₁_₃₀ hydrocarbon groups, 
R² is a monovalent organic group represented by (̵ CR³₂ CR³ (H)CR³₂ )̵R⁴, where R³ is H or a monovalent saturated C₁_₅ hydrocarbon group, 
R⁴ is a monovalent organic group represented by the formula:
      R⁵ being identical to said R¹ or a halogen atom, alkoxy group, carboxyl group , hydroxyl group or amino group , 
 d  is an integer from 0 to 4, and  c  from 0 to 3.   
     The compounds have a high UV absorption coefficient, high solubility in silicone oils and are non-irritant; they are thus useful for medical and cosmetic preparations, and also as additives for plastics.
Patent EP-0392879-A2 (EP)
Inventor: IEKI HIDEHARU C O MURATA MANUF
IPC: H03H9/145
Filed: 1990-04-17
Abstract: Interdigital transducers (3, 4) and reflectors (5, 6) are formed on a piezoelectric substrate (2) by an aluminum film. The aluminum film is crystallographically oriented in a constant direction, whereby stressmigration of the aluminum film is suppressed.
Patent EP-0397512-A2 (EP)
Inventor: ISONO KEINOSUKE
IPC: G06K19/10
Filed: 1990-05-11
Abstract: Discrete identification data is registered in a card-type information medium, and stored in advance in a host computer connected with a reader/writer of said medium, for processing data in accordance with an object of said medium. When the medium is used, the data in­cluding said identification data is read by the reader/writer and are transmitted to the host computer, which then compares the transmitted identification data with that stored therein, and if both data coincide, initiates a predetermined procedure. Subsequently, when the procedure is finished, the host computer alters at least a protion of the identification data erases the identification data prior to alteration and stores the altered identification data therein. The reader/writer also rewirtes the identification data registered in medium by the altered identification data. The rewriting of the identification data is performed whenever the medium is used.
Patent EP-0399761-A2 (EP)
Inventor: CHAN RAYMOND SCOTT
IPC: G06F11/10
Filed: 1990-05-21
Abstract: This invention relates to a sequential parity correction apparatus. More specifically, this invention relates to an apparatus and method of correcting parity errors in a fault tolerant computer system.
Patent EP-0417983-A2 (EP)
Inventor: SAVIDAN HENRI
IPC: B60T8/38
Filed: 1990-09-06
Abstract: A dual master cylinder (10) for the braking system of a motor vehicle comprising a bore (18), a primary portion (12) and a secondary portion, in which the primary piston (16) comprises an outer piston (65) slidable in the bore (18), and a central piston (78) slidable in a piston bore (64) defined by the outer piston, the piston bore having a shoulder (72) engageable with an abutment face (98) on the central piston to define a check valve (62), the piston bore providing a fluid passage (70,96,68) between the high pressure chamber (30) and the low pressure chamber (22) of the primary portion, the check valve allowing hydraulic fluid to flow through the fluid passage during a rest mode or a release mode of the dual master cylinder, but preventing such flow during an apply mode. Prevents damage to elastomeric cup seal (26) when back pressure is generated by ABS due to the absence of a dilation port in the primary portion, which is no longer required due to the presence of the check valve.
Patent EP-0425319-A2 (EP)
Inventor: CARTMELL ROBERT LOUIS
IPC: A61B19/00
Filed: 1990-10-26
Abstract: A device for tracking catheters includes an oscillator which is coupled to a transmit coil. The transmit coil is rotated in a direction transverse to the longitudinal axis of the transmit coil. A receive coil situated on the guide wire of a catheter inserted into a patient's body receives the signal transmitted from the transmit coil. A rectifier rectifies the received signal, and a filter filters the rectified received signal. A strobe circuit provides strobes of light in response to the rectified received signal and cooperates with bar image forming circuitry and structure to provide an image of a bar which is aligned with the longitudinal axis of the receive coil, which is indicative of the orientation of the catheter and guide wire on which the receive coil is situated. A bar display indicates the relative proximity of the transmit coil to the receive coil, and a numeric display provides a read-out of the distance between the transmit coil and the receive coil.
Patent EP-0472798-A2 (EP)
Inventor: CHAUL CESAR FARAON
IPC: G05D7/01
Filed: 1990-09-18
Abstract: The dislodgement of the soft washer of a fluids rate of flow saving or limiting device comprising a fluid pressure actuated needle type shutter (104) and a flow restricting washer assembly through which said shutter (104) passes to obstruct the free flow of the fluid depending on the pressure thereof and including a soft washer (111) sandwiched between two hard washers (110, 112) is prevented by enclosing said soft washer (111) within a housing (120) having a circular bottom (112) provided with an opening of a predetermined diameter larger than the diameter of said shutter (104), a cylindrical wall (114) extending upwardly along the periphery of said bottom (112) to a distance sufficient to constitute a cavity for receiving said soft washer (111), and a lid (110) to cover the housing (120) and having an opening of the same diameter as said bottom (112), said lid (110) being arranged with respect to said cylindrical wall so as to sandwich said soft washer (111) between said lid (110) and said bottom (112), said soft washer (111) having an opening of a diameter smaller than the diameter of the openings in said lid (110) and said bottom (112) and being fixed within said housing (120) to avoid dislodgement thereof by high fluid pressures. Under low moderate fluid pressures, the flow restricting washer assembly merely comprising the soft washer (111) sandwiched between the two hard washers (110, 112) provides a satisfactory and efficient operation of the device.
Patent EP-0448961-A2 (EP)
Inventor: CHOLCHA WALTER DR
IPC: A61K9/00
Filed: 1991-02-23
Abstract: The invention relates to a nitroglycerin pump spray containing 0.2 to 3.5% by wt. of nitroglycerin and up to 3% by wt. of customary additives such as flavoring agent or antioxidants and a liquid phase consisting of aliphatic C2 to C4 alcohols and a vehicle and is characterized in that the liquid phase consists of 10 to 40% by wt. of ethyl alcohol and 90 to 60% by wt. of a neutral oil.
Patent EP-0460405-A2 (EP)
Inventor: HEGENBART BRIGITTE
IPC: H04Q3/545
Filed: 1991-05-03
Abstract: 2.1. A method is to be proposed with which a multiplicity of additional facilities which are useful for communication exchanges can be implemented with no need for substantial initial outlay in the standard version. Existing structures are to be used in such a way that no existing methods need to be modified when new facilities are added. The existing signalling paths between the control devices are to be incorporated in the method in such a way that connection paths need to be switched only if voice transmission is to take place. 2.2 A processing unit is provided which is connected via a bus line system to the local group controllers and the central controller and which can exchange information with these controllers. The processing unit is instructed from a data terminal to establish a connection when a predetermined time or event occurs, or, in the case of specific facilities, independently detects that a connection is to be established for data and/or voice. The group controllers involved in a connection are then controlled by the processing unit as if the connection had been established directly from a terminal. 2.3 When a new facility is set up in the processing unit, no consideration needs to be given to structures or programs already present in the communication exchange. The central control device carries a lighter load because the processing unit and the local controllers can exchange information directly with one another. The switching network available for establishing connections carries a lighter load because, for example, connections do not have to be established via it for data entries. A multiplicity of solutions optimally adapted to specific commercial applications are possible. <IMAGE>
Patent EP-0460450-A2 (EP)
Title: Verfahren zur Reinigung von Thermoplasten durch Friktionskompaktierung
Inventor: ARLT WOLFGANG DR
IPC: C08G75/0281
Filed: 1991-05-22
Abstract: Es wird ein Verfahren zur Reinigung von Thermoplasten beschrieben. Der zu reinigende Thermoplast wird zwischen die Scheiben eines Plastkompaktors eingebracht und durch die bei der Drehbewegung auftretenden Kräfteeinwirkung und Temperaturerhöhung weitgehend von unerwünschten Rückständen aus dem Polymerisationsprozeß befreit.
Patent EP-0463434-A2 (EP)
Inventor: NESTLER GERHARD DR
IPC: C07C67/58
Filed: 1991-06-07
Abstract: Method for the production of monoethylenically unsaturated carboxylic esters, in which, after the esterification is complete,
 a) the product mixture is extracted in a first extraction stage at a temperature of 10 to 40 DEG C with 5 to 30% by volume, based on the product mixture, of water and
 b) in a second extraction stage at a temperature of 10 to 30 DEG C the aqueous phase from the first extraction stage is extracted with one to four times the amount by weight of alkanol to be esterified.
Patent EP-0472870-A2 (EP)
Inventor: BERGMANN HEINZ
IPC: B30B9/28
Filed: 1991-07-11
Abstract: An apparatus for pressing waste, especially pressable refuse, having a press piston with a press plate in a lower region of a receiving space for the refuse in the apparatus housing, which is arranged horizontally displaceably and which conveys the refuse into a container adjoining the receiving space and compresses it there, is to be so designed that a safe and wear-resistant covering is guaranteed, the space taken up by this being as small as possible. 
<??>For this, according to the invention, the receiving space is filled continuously, there being mounted on the press piston a shovel which is rotatable about a horizontal axis and which has an acute-angled edge engaging under the refuse in the receiving space during the return stroke and facing away from the press plate, and at the end of the return stroke the shovel being tiltable with the acute-angled edge upwards about its axis, so that the refuse under which the shovel has engaged is conveyed in front of the press plate of the press piston.
Patent EP-0475323-A2 (EP)
Inventor: SAPPER RICHARD
IPC: F21V21/30
Filed: 1991-09-09
Abstract: A lamp comprising a light (4) supported on a structure (3) defining a path for the current supplying the bulb (16). The light (4) comprises a housing (13a) and a support (12) located between the structure (3) and housing (13a). The support (12) consists of two arms (38) hinged at the ends (39) to the structure (3) for enabling the housing (13a) to rotate about a first axis (31); and a pin (43) perpendicular to the arms (38) and supported in rotary manner inside the housing (13a) for enabling the housing (13a) to rotate in relation to the structure (3) about a second axis (32) perpendicular to the first (31). The support (12) consists of two electrically insulated parts made of electrically conductive material.
Patent EP-0483508-A2 (EP)
Inventor: SEHR GERHARD
IPC: E03F5/14
Filed: 1991-09-25
Abstract: The novel separator for settling and/or floating materials, such as for example starch or fats, has to be refilled with fresh water after disposal of the separator contents. To avoid back-contamination from the separator, the fresh-water inlet possesses a free-fall section with a collecting funnel. This funnel, which is not filled during the operation of the separator, constitutes a source of odour. According to the invention, the fresh-water inlet is therefore equipped with a winding odour seal which always remains filled with water and preferably has the shape of a double U or a circular pipe and exhibits a large intake capacity upon admission of fresh water. <IMAGE>
Patent EP-0498036-A2 (EP)
Inventor: WANDEL PETER
IPC: H01F19/04
Filed: 1991-10-09
Abstract: 2.1 Known radio-frequency broadband transformers having two windings arranged on a ferrite core can transform radio-frequency signals only up to a frequency of about 600 MHz. …<??>2.2 In order that radio-frequency signals up to a frequency of about 860 MHz can also be transformed, it is proposed according to the invention that the first winding (W1) be wound on the ferrite core (K) twisted with the second winding (W2). This allows a radio-frequency broadband transformer to be implemented which is suitable for transforming radio-frequency signals in a frequency band of, for example, 47 to 860 MHz. …<??>3. The drawing shows a radio-frequency broadband transformer in section. …<IMAGE>…
Patent EP-0440294-A2 (EP)
Inventor: CIGARINI ENZO
IPC: G01G19/56
Filed: 1991-01-29
Abstract: A method for determining the weight of a food (9) contained in a microwave oven (1) in order to control the magnetron operating power and time for the treatment of the food, said oven comprising a cooking chamber (4) and a microwave generator or magnetron (3), by which said determination is made by measuring the temperature of a body (12) of microwave-sensitive material disposed in said chamber in a position not screened by the food, during a stage of operation of the magnetron at a predetermined power for a predetermined time, and administering cold to said body such as to return its temperature to a constant value and maintain it thereat. 
     The method is implemented by a device comprising a body (12) constructed of microwave-sensitive material positioned at any point on a wall (5, 6) of the cooking chamber (4) , with said body there being associated temperature sensing means (14) and cooling means (15) connected to a microprocessor circuit (11) which, based on the measurement of the heating of said body, enables the cooling means to administer cold to said body in order to cool it and maintain it at constant temperature.
Patent EP-0475528-A2 (EP)
Inventor: VAN DER ZEL JOSEPH MARIA
IPC: A61C5/77
Filed: 1991-09-09
Abstract: A system for dental restorations comprising dental alloys for the manufacture of a substructure of the restoration and dental porcelains for coating the substructure. The porcelains have a relatively high thermal expansion coefficient, above 14.5 µm/m.°C, and a relatively low firing temperature, below 950°C. The alloys have adapted properties, a thermal expansion coefficient above 14.5 µm/m.°C and a solidus temperature of at least 1000°C.
Patent EP-0454375-A2 (EP)
Inventor: WETZEL MATTHIAS
IPC: B25B23/04
Filed: 1991-04-19
Abstract: A screwing device with which fixing elements having a respective generated surface, in particular polygonal nuts, can be screwed onto studs. The screwing device can be driven electrically or pneumatically and comprises an exchangeable magazine (4) which is provided in the screw axis and from which the individual nuts can be brought to a work station by means of a tool in the form of three arms (3). In this position, the polygonal nut (1) and tool are positively fixed before the rotational movement is transmitted. The force is transmitted from the motor (49) via a driving unit to the lifting cylinder (14) and to the mouth-piece (2) fixed thereon.