Patents Assigned to Siemens Aktiengesellschaft of
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Patent number: 5932919Abstract: In the manufacture of CMOS devices, the n+ gate is partially counterdoped with boron to produce a modified p-type FET that has improved short channel effects, reduced gate induced drain leakage and gate oxide fields for improved reliability. A doped polysilicon layer is formed over a silicon or silicon oxide substrate, and is counterdoped with boron to a level of about 1.times.10.sup.13 /cm.sup.2 to 5.times.10.sup.16 /cm.sup.2 to adjust the work function but without changing the essentially n-type character of the gate electrode. This single counterdoping step achieves improved results for sub-micron devices at low cost. For CMOS device manufacturing, the alternating n-type and p-type devices are made in similar manner but reversing the n-type and p-type dopants.Type: GrantFiled: May 14, 1997Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventor: Udo Schwalke
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Patent number: 5933714Abstract: A fuse bank for use in the laser break-link programming of an integrated circuit device. The fuse bank uses fuse elements with two ends that contain fusible regions proximate the first end and non-fusible regions proximate the second end. The fuse elements are aligned in alternately oriented parallel rows so that the first end of each fuse element is juxtaposed with the second end of any adjacent fuse element. By sequentially alternating the orientation of the fuse elements in the fuse bank, the fuse elements can be formed in a highly dense matter without bringing any two fusible regions too close to one another. Accordingly, a laser can be used to sever selected fusible regions without adversely effecting other fusible regions within the fuse bank. By alternating the orientations of sequential fuse elements, a fuse bank can be created that is twice as dense as single orientation fuse banks with only a 30% to 50% increase in size.Type: GrantFiled: June 20, 1997Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventor: Karl-Heinz Froehner
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Patent number: 5932149Abstract: An optical cable has tensile elements and supporting elements embedded in an extruded outside cladding. The tensile elements are hauled-off from a supply reel and introduced into an extruder head serving to manufacture the outside cladding. The supporting elements are manufactured in a coextrusion with the outside cladding by appropriate channels formed in the extruder head.Type: GrantFiled: February 6, 1997Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventor: Reiner Schneider
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Patent number: 5933374Abstract: In memory systems embodying the invention a controller/sequencer circuit converts a multiplicity of control signals into a serial stream of control signals which are carried from the controller/sequencer circuit via a single ("data") line to the data input of a control path (e.g., a multi-stage shift register) which is disposed in proximity to a functions generator (e.g., a voltages generator). After the control path is serially loaded with a selected number of control signals, the control signals are selectively applied, in parallel, to the functions generator. Where the control path is a shift register, three control lines are routed from the controller/sequencer to the shift register. One line carries the serial control signals to the input of the shift register; one line (i.e., a shift line) carries shift signals for causing the transfer of the control signals along the shift register stages; and one line (i.e.Type: GrantFiled: June 15, 1998Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventor: Oliver Weinfurtner
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Patent number: 5933331Abstract: An apparatus for coupling a battery to a mains-powered Sc link circuit of a converter. The this apparatus has two capacitors and two converter bridge arms which are each connected electrically in parallel with a capacitor. The apparatus also includes an inductor which connects the centre terminals of the two converter bridge arms to one another, and a semiconductor power switch which makes it possible to connect the positive terminals of the two converter bridge arms. In addition, the apparatus includes a control electronics with downstream driver stages which control electronics use determined actual values of this apparatus, a mains failure signal and an inductor current setpointvalue to generate control signals. A battery coupling apparatus is thus obtained by means of which the battery is not continuously loaded with alternating current, and the opportunity for battery maintenance exists in order to increase the battery life.Type: GrantFiled: June 8, 1998Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventors: Detlef Boldin, Karl Fischer
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Patent number: 5933524Abstract: Colored objects are represented by digitized color histograms which are used for the segmentation of digital color images. In this case, the binary values of the color histograms correspond to the decision as to whether a pixel can or cannot belong to a given object segment. Model-based parameterizations of these color histograms are preferred for the efficient execution of the segmentation. In particular, they permit adaptation of the color histograms to temporally varying lighting conditions with acceptable expense.Type: GrantFiled: February 7, 1996Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventors: Rolf Schuster, Subutai Ahmad
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Patent number: 5933788Abstract: A radio station for transmitting and receiving digital information in a mobile communications system is provided having transmission and diversity reception implemented via a single antenna. For this purpose, the antenna has at least two exciter systems with different polarization. The transmitting and receiving units are connected to the exciter systems in a suitable manner, for example, via duplexers.Type: GrantFiled: April 29, 1997Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventors: Michael Faerber, Helmut Muehlbauer, Franz-Peter Wangerczyn
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Patent number: 5933472Abstract: A slice level display for x-ray systems has a projector arranged next to a patient-support plate which emits light beam directed onto a patient on the support plate, projector being coupled to a drive system in order to displace an x-ray radiator and an exposure cassette, seated under the patient-support plate, oppositely around the light beam axis as a pivot point of their connecting line. The x-ray radiator and the exposure cassette are displaceable via separate drives that are coupled with a control unit having a position sensor associated therewith. The position sensor supplies height position signals of the projector to the control unit which are used to calculate control signals for operating the respective drives for displacing the x-ray radiator and the cassette. The projector and a displacement mechanism therefor and the height position sensor are detachably securable to the patient-support plate as a structural unit.Type: GrantFiled: February 6, 1998Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventors: Claudius Molz, Paolo Barzaghi, Gerhard Wurzer
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Patent number: 5932858Abstract: A stored-energy mechanism for a high-voltage circuit-breaker pole filled with an insulating gas with a drive rod, which transmits the drive movement to an interrupter unit by thrust or traction and which can be driven through a drive crank attached to a drive shaft, and with an opening spring coupled to an opening crank attached to the drive shaft and with a closing spring driving a closing crank attached to the drive shaft. It is provided that the closing crank and the opening crank are arranged outside the insulating gas chamber. The drive crank is arranged inside the insulating gas chamber, a carrier block seals the chamber filled with insulating gas against the outer chamber, the drive shaft traverses a housing wall of the carries block in a gas-tight manner, and the carrier block forms an end support for the closing spring and the opening spring.Type: GrantFiled: January 9, 1998Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventor: Manfred Meinherz
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Patent number: 5933312Abstract: The magnetic residual energy stored in a coil is made to decay within a shorter and/or definite time period by the use of a free-wheeling circuit connected in parallel. The free-wheeling circuit comprises a series circuit, which includes a first diode and a first switching transistor connected in parallel to a non-linear resistor, connected in parallel to the coil. The first switching transistor is driven by a parallel circuit formed by a capacitor and a first ohmic resistor, which is connected in parallel to a second switching transistor. When a switch-off overvoltage appears in the coil, the second switching transistor becomes conductive and thus the first switching transistor is reliably blocked, so that the residual energy decays through the non-linear resistor.Type: GrantFiled: March 10, 1998Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventors: Thomas Schuhbauer, Bernhard Streich
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Patent number: 5931162Abstract: A ventilator has an inspiration section for supplying respiratory gas to a respiratory system of a patient and an expiration section for conveying respiratory gas from the respiratory system is described. If the patient spontaneously inhales during a controlled inspiration phase, the inspiration section and expiration section will be controlled to allow a spontaneous exhalation during a specific period of time within the inspiration phase. The patient thus will be able to respirate in a natural way even during controlled respiration, resulting in increased comfort and increased motivation for increasing the spontaneous respiration rate. If an insufficient tidal volume or minute volume is supplied during the controlled and spontaneous part of the inspiration phase, the inspiration phase will commence immediately after the spontaneous exhalation for supplying a remaining part of the set tidal volume.Type: GrantFiled: June 3, 1997Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventor: Klaus Christian
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Patent number: 5932936Abstract: A switch matrix has a set of inputs, a set of outputs, controllable switch elements and a conductor arrangement that is connected to the inputs and outputs and to the controllable switch elements. The controllable switch elements together with the conductor arrangement produce switched electrical connection paths between at least two inputs and an output. The electrical connection paths contain connecting branches that, proceeding from the at least two inputs and the output, meet at a junction point. The connecting branches connected to the at least two inputs have identical electrical lengths up to the junction point.Type: GrantFiled: March 2, 1998Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventors: Andreas Potthast, Georg Rauh
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Patent number: 5933122Abstract: In order to minimize switching losses occurring in antenna switches for wireless antenna diversity telecommunications devices with two antennas, for example base station of a DECT cordless telephone, in each case an electronic switching element (SE1 . . . SE4), constructed for example as a PIN diode or switching diode, is arranged in a first signal path (SW1) from a transmitter (TR) to a first transmission/reception antenna (A1), a second signal path (SW2) from the transmitter (TR) to a second transmission/reception antenna (A2), a third signal path (SW3) from a receiver (RE) to the first transmission/reception antenna (A1) and a fourth signal path (SW4) from the receiver (RE) to the second transmission/reception antenna (A2). The switching elements (SE1 . . . SE4) form here, together with the signal paths (SW1 . . . SW4), a ring circuit.Type: GrantFiled: February 25, 1997Date of Patent: August 3, 1999Assignee: Siemens AktiengesellschaftInventors: Jurgen Sauer, Volker Detering, Jurgen Lepping
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Patent number: 5928712Abstract: A method and an apparatus for forming a waveguide conductor ribbon by passing several light waveguides through a through-opening so that as the waveguides are passed through the opening, they are coated by a liquid coating material, which creates a drag force current for moving the waveguides through the opening. The diameter of the light waveguides and/or the position of the light waveguides inside the ribbon conductor is determined and the width of the through-opening of the coating apparatus is modified on the basis of the measured diameter value and/or on the basis of the size of any gap between the fibers to optimize the amount of drag current forces being produced.Type: GrantFiled: April 11, 1997Date of Patent: July 27, 1999Assignee: Siemens AktiengesellschaftInventors: Siegfried Unterberger, Karl Eidling, Gerd Kohler
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Patent number: 5930171Abstract: A constant-current source includes a MOSFET having a drain electrode connected to a first terminal of the current source and a source electrode and a control gate electrode connected to a second terminal of the current source. A floating gate having a charge of the opposite charge-carrier type to the channel type of the FET is disposed between the control gate and the channel of the FET.Type: GrantFiled: November 24, 1997Date of Patent: July 27, 1999Assignee: Siemens AktiengesellschaftInventor: Thomas Zettler
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Patent number: 5930596Abstract: A terminal metallization (8) is applied onto and structured on a layer structure on the upper side of the component, the terminal metallization is applied on the upper side of an insulating layer (7) with an opening on a metallization (6) provided for electrical connection. By filling a hole produced in a covering dielectric with metal, a contact rod (12) seated on this terminal metallization (8) is formed. This contact rod is resiliently movable in a surrounding opening (14) of the component on the free part of the terminal metallization (8) anchored in the layer structure. This enables the reversible contacting of the component to a further component arranged vertically thereto, whereby the planar upper sides lying opposite one another can be brought into intimate contact because the contact rod (12) pressed against a contact (15) of the other component is pressed back into the opening (14) and an adequately firm connection of the contacts is achieved by the spring power of the terminal metallization (8).Type: GrantFiled: September 27, 1996Date of Patent: July 27, 1999Assignee: Siemens AktiengesellschaftInventors: Helmut Klose, Werner Weber, Emmerich Bertagnolli, Siegmar Koppe, Holger Hubner
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Patent number: 5929684Abstract: Feedback pulse generators each have an input and an output, a first digital gating circuit, and a second digital gating circuit. The first digital gating circuit is coupled between the input and the output of the pulse generator, and is responsive to an input signal from an external source changing from a first logic state to a second logic state that is received at a first input thereof for initiating a pulse at the output of the pulse generator.Type: GrantFiled: March 6, 1998Date of Patent: July 27, 1999Assignee: Siemens AktiengesellschaftInventor: Gabriel Daniel
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Patent number: 5929658Abstract: A current-mode sense amplifier includes a current mirror circuit having an input branch controlled by a current input signal to be sensed and an output branch connected to a capacitor. The output branch and gates of current mirror transistors are connected to transistors for precharge operation. The sense amplifier needs no reference current, provides a low component count and is noise resistant.Type: GrantFiled: September 2, 1997Date of Patent: July 27, 1999Assignee: Siemens AktiengesellschaftInventors: Chu-Ming Cheung, Xaver Meindl
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Patent number: 5930319Abstract: A nuclear reactor includes a propagation space for core melt. The propagation space has a coolant conduit leading to a coolant reservoir and a device which opens in a temperature-dependent manner. The coolant conduit in the propagation space is a spray conduit having a spraying area which covers the cross-section of the propagation space over a large area. The device is controlled in such a way that it opens when the core melt enters the propagation space. Spraying gives rise to a crust on the core melt which reduces heat radiation. At the same time, the propagation space fills with a steam atmosphere which drastically reduces the thermal load on building structures.Type: GrantFiled: December 29, 1997Date of Patent: July 27, 1999Assignee: Siemens AktiengesellschaftInventors: Lothar Wistuba, Gerhard Hau, Dietmar Bittermann, Horst Weisshaupl
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Patent number: 5928002Abstract: A device for contacting a contact tongue has a counterpart contact body, made of plastic and formed with a slot space for receiving the contact tongue. On the side of the counterpart contact body pointing toward the contact tongue, a flexible conductor foil is provided which, when the counterpart contact body is slipped into the contact tongue, is forced by the contact tongue against the inner wall of the slot space and thereby contacts the contact tongue.Type: GrantFiled: April 13, 1998Date of Patent: July 27, 1999Assignee: Siemens AktiengesellschaftInventor: Josef Loibl