Patents by Inventor Robert Lorenz
Robert Lorenz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130107914Abstract: Embodiments operate to reduce impedance mismatch between the PA and the antenna in a transceiver, thereby reducing the VSWR at the PA output and improving both the delivered power to the antenna and receiver sensitivity. In embodiments, an antenna tuner is placed between the PA and the antenna. The antenna tuner includes programmable components that can be tuned in order to effect an impedance translation between the antenna and the PA output, thereby reducing reflections seen by the PA. In an embodiment, the antenna tuner is adapted dynamically based on changes in the impedance of the antenna. Accordingly, the PA is operated very close to its optimal load impedance. In another embodiment, the antenna tuner is controlled based on measurement of the voltage reflection coefficient S11.Type: ApplicationFiled: June 7, 2012Publication date: May 2, 2013Inventors: Bongseok Park, William Fujimoto, Sriraman Dakshinamurthy, Robert Lorenz
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Patent number: 8385435Abstract: Embodiments describe a method of measuring noise and interference within transceivers of an OFDM wireless transmission system, or similar communication system, including a number of receivers communicating with one or more base stations in cell or sector arrangements. The transmitter schedules a transmission burst for a non-existent user (receiver) using wireless transmission traffic. In an OFDM system, this corresponds to a certain set of subcarriers in the time/frequency arrangement. Thus, in the receive frame structure, the data and pilot subcarriers are guaranteed to be only noise and interference from adjacent sectors. The receiver can accurately measure the noise and interference without needing to cancel out the transmitted signal. Therefore, the system is assured that there is no desired signal as part of this measurement. The noise and interference measurement process can be appropriately scheduled so that it does not impact the overall throughput of the system.Type: GrantFiled: February 9, 2007Date of Patent: February 26, 2013Assignee: Broadcom CorporationInventors: David Garrett, Robert Lorenz, Djordje Tujkovic
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Publication number: 20120314746Abstract: Embodiments provide systems and methods to dynamically control a radio frequency (RF) transmitter based on monitored error vector magnitude (EVM) performance. Embodiments are enabled by a feedback path that allows estimating the EVM at the output of the transmitter and controlling the transmitter, including the power amplifier (PA), accordingly. As such, the transmitter (and the PA) can be operated as close as possible to the ideal operating point that meets, based on actual conditions, a specified EVM performance and desired output power. By doing so, the overall power consumption of the transmitter is reduced.Type: ApplicationFiled: June 7, 2012Publication date: December 13, 2012Applicant: Broadcom CorporationInventors: Robert LORENZ, Djordje Tujkovic
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Publication number: 20120301362Abstract: The invention relates to a system for testing a sample of bodily fluid, comprising a carrier band, which carries a plurality of consumable elements, wherein one end of the carrier band is attached to a wind-up device for winding the carrier band, together with used consumable elements, onto a reel for the band transport, and comprising a display for displaying information regarding the supply of yet unused consumable elements of the carrier band. According to the invention, it is provided that information regarding the supply of yet unused consumable elements of the carrier band is obtained from an angle of rotation and from a band transport length by which the carrier band is moved with a rotation of the reel about said angle of rotation.Type: ApplicationFiled: November 23, 2011Publication date: November 29, 2012Inventors: Robert Lorenz, Kai-Oliver Schwenker
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Publication number: 20120262274Abstract: A medical system and method to operating the medical system is presented. A patient storage element is assigned to a patient comprising identification information identifying the patient. A medical device has a contaminating patient application. A medical device storage element on the medical device comprises use information. A clearing device receives the identification information from the patient storage element and the use information from the medical device storage element and analyzes the use information. If in analyzing the use information it is found that application of the medical device to the patient is allowed, a clearance signal is outputted. If in analyzing the use information it is found that application of the medical device to the patient is not allowed, the identification information is analyzed. If in analyzing the identification information it is found that application of the medical device to the patient is allowed, a clearance signal is outputted.Type: ApplicationFiled: April 12, 2012Publication date: October 18, 2012Inventors: Detlef Thym, Robert Lorenz
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Patent number: 8282893Abstract: A test tape unit with a flexible carrier tape that can be wound forwardly by a tape drive is provided. The carrier tape includes a plurality of analytical test fields for the application of body fluid that are each applied in an associated tape section. Each tape section has a plurality of position markers for different functional positions that can be scanned by means of a tape sensor and can thereby be individually identified by measured quantity.Type: GrantFiled: April 11, 2011Date of Patent: October 9, 2012Assignee: Roche Diagnostics Operations, Inc.Inventors: Stefan Schosnig, Wolfgang Heck, Ulrich Porsch, Robert Lorenz, Ulrich Kehr, Andree Treinzen, Beda Steinacher, Stefan Sieber, Udo Manser, Karl Miltner
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Patent number: 8223826Abstract: Embodiments are directed to a wireless receiver system that utilizes a special structure of pilot symbols used for synchronization and channel estimation in transmission packets to measure noise power at the receiver. The periodicity of the pilot signal sequences is used to extract the noise power from the received signal. Such extraction is achieved by subtracting the received signals from two pilot slots which are separated by the known periodicity of the training sequence. This method relies on the fact that desired signal and system interference signals will cancel out after the subtraction process. Measuring the power of the residual signal after subtraction represents the estimate of the noise power. Several consecutive such residual signals can be first summed up before measuring the power to improve the estimate of the noise power at the receiver.Type: GrantFiled: November 11, 2010Date of Patent: July 17, 2012Assignee: Broadcom CorporationInventors: Djordje Tujkovic, Ying Xia, Robert Lorenz, Sriram Mudulodu
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Publication number: 20120142291Abstract: Various embodiments of the present invention recognize at least two zones of operation for a communication device. In a first zone, which is sufficiently spaced away from a human head or body that SAR limits will be met, transmit power delivered to an antenna of a communication device may be maximized within any other constraints under which the communication device operates. In a second zone, which is not sufficiently spaced away from a human head or body, transmit power is redistributed such that SAR limitations are met without affecting the transmit power control loop of the communication device. For example, a second antenna physically disposed at a different location within the communication device may be used either instead of, or in addition to, the first transmit antenna in order that the SAR limits are met.Type: ApplicationFiled: November 28, 2011Publication date: June 7, 2012Applicant: Broadcom CorporationInventors: Kamlesh Rath, Erik Stauffer, Rishi Ranjan, Soumen Chakraborty, Manish Airy, Bertrand Hochwald, Robert Lorenz, Richard Compton, Rakesh Agrawal
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Publication number: 20120010489Abstract: There is provided a test method for analysing a body fluid in which a test tape is used in a test device in order to successively provide analytical test fields stored on the test tape, wherein body fluid is applied by a user to the test field provided at a time and the said test field is photometrically scanned using a measuring unit of the device to record measurement signals. In order to increase the measurement reliability, it is proposed that a control value is determined from a time-dependent and/or wavelength-dependent change in the measurement signals and that the measurement signals are processed as valid or discarded as erroneous depending on the control value.Type: ApplicationFiled: August 15, 2011Publication date: January 12, 2012Inventors: Karl Miltner, Robert Lorenz, Ulrich Porsch, Clemens Knapp
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Publication number: 20110243810Abstract: A test tape unit with a flexible carrier tape that can be wound forwardly by a tape drive is provided. The carrier tape includes a plurality of analytical test fields for the application of body fluid that are each applied in an associated tape section. Each tape section has a plurality of position markers for different functional positions that can be scanned by means of a tape sensor and can thereby be individually identified by measured quantity.Type: ApplicationFiled: April 11, 2011Publication date: October 6, 2011Inventors: Stefan Schosnig, Wolfgang Heck, Ulrich Porsch, Robert Lorenz, Ulrich Kehr, Andree Treinzen, Beda Steinacher, Stefan Sieber, Udo Manser, Karl Miltner
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Patent number: 7957328Abstract: A method and system for managing change-over in radio functionality at a radio front-end in a Time Division Duplexing (TDD) system is provided. The method comprises storing one or more control commands. The one or more control commands may correspond to the change-over. The change-over may be a transmitter-to-receiver change-over or a receiver-to-transceiver change-over. The method further comprises receiving a trigger time corresponding to the one or more control commands. The trigger time comprises a timing requirement for the change-over. Thereafter, one or more control commands are released based on a predetermined condition.Type: GrantFiled: January 31, 2007Date of Patent: June 7, 2011Assignee: Broadcom CorporationInventors: David Garrett, Robert Lorenz, Trevor Pearman
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Publication number: 20110073617Abstract: A locking access plug for a valve return spring for a beverage dispensing gun handle is disclosed. The locking access plug enables the compression and retention of the valve return spring and enables the retention of the locking access plug in the body of the handle until it is acted upon for the purpose of its removal; for example, for the servicing of the handle. A beverage dispensing gun having such a locking access plug can both keep a valve return spring in compression as well as interface with a sealing o-ring that seals between the locking access plug and the beverage dispensing gun handle.Type: ApplicationFiled: August 30, 2010Publication date: March 31, 2011Applicant: Automatic Bar Controls, Inc.Inventors: Richard A. Martindale, Bret D. Baker, Albert A. Soldano, Robert A. Lorenz
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Publication number: 20110058486Abstract: Embodiments are directed to a wireless receiver system that utilizes a special structure of pilot symbols used for synchronization and channel estimation in transmission packets to measure noise power at the receiver. The periodicity of the pilot signal sequences is used to extract the noise power from the received signal. Such extraction is achieved by subtracting the received signals from two pilot slots which are separated by the known periodicity of the training sequence. This method relies on the fact that desired signal and system interference signals will cancel out after the subtraction process. Measuring the power of the residual signal after subtraction represents the estimate of the noise power. Several consecutive such residual signals can be first summed up before measuring the power to improve the estimate of the noise power at the receiver.Type: ApplicationFiled: November 11, 2010Publication date: March 10, 2011Applicant: BECEEM COMMUNICATIONS INC.Inventors: Djordje Tujkovic, Ying Xia, Robert Lorenz, Sriram Mudulodu
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Patent number: 7835432Abstract: Embodiments are directed to a wireless receiver system that utilizes a special structure of pilot symbols used for synchronization and channel estimation in transmission packets to measure noise power at the receiver. The periodicity of the pilot signal sequences is used to extract the noise power from the received signal. Such extraction is achieved by subtracting the received signals from two pilot slots which are separated by the known periodicity of the training sequence. This method relies on the fact that desired signal and system interference signals will cancel out after the subtraction process. Measuring the power of the residual signal after subtraction represents the estimate of the noise power. Several consecutive such residual signals can be first summed up before measuring the power to improve the estimate of the noise power at the receiver.Type: GrantFiled: April 19, 2007Date of Patent: November 16, 2010Assignee: BECEEM Communications IncInventors: Djordje Tujkovic, Ying Xia, Robert Lorenz, Sriram Mudulodu
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Patent number: 7695677Abstract: Glucose analysis instrument for diabetics, comprising a measuring device for determining glucose concentration values, a displaying device for displaying glucose concentration values, a signaling device for generating a reminder signal, and a control and evaluation device that comprises a processor and a data memory and is used to determine reminder times at which the signaling device is actuated. Event data are stored in the data memory, the event data containing information on events occurring in the life of a user of the glucose analysis instrument and on the time of occurrence of such events. The reminder times are determined by means of a reminder time determination algorithm taking into consideration event data from at least one previous day.Type: GrantFiled: June 19, 2006Date of Patent: April 13, 2010Assignee: Roche Diagnostics Operations, Inc.Inventors: Karl Werner, Peter Stephan, Robert Lorenz
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Publication number: 20100075433Abstract: The invention relates to an analysis system for the photometric determination of an analyte in a body fluid, having an analysis device and a test carrier. The test carrier has an evaluation zone in which a photometrically detectable change takes place as the result of a reaction of a sample of the body fluid which contacts the test carrier with a reagent contained in the test carrier. The analysis device comprises an optical emitter for emitting light onto the evaluation zone, an optical receiver for receiving light from the evaluation zone and for generating a measurement signal corresponding to the received light, and a measurement and evaluation device with a measuring unit and an evaluating unit. The measurement signal is amplified and digitalized in the measuring unit. In the evaluating unit, the concentration value is determined from the digitalized measurement signal.Type: ApplicationFiled: October 27, 2009Publication date: March 25, 2010Inventors: Ulrich Porsch, Robert Lorenz
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Patent number: 7680223Abstract: A method for detecting a positioning signal includes (a) correlating a segment of a received positioning signal with a reference signal of a selected code phase and frequency to obtain a correlation value, (b) if the correlation value is less than a predetermined minimum, assigning the correlation value to the predetermined minimum, and (c) accumulating the correlation value in a sum of correlation values obtained using other segments of the received positioning signal. In addition, the correlation value may be reduced by a predetermined value, which is preferably an expected mean value for a noise component in the segment of the received positioning signal.Type: GrantFiled: December 21, 2007Date of Patent: March 16, 2010Assignee: SirF Technology, Inc.Inventors: Julien Basch, Andrew Chou, Robert Lorenz, Jesse Stone
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Patent number: 7545876Abstract: Systems and methods for optimizing transmission of a plurality of data streams on a multiple-input multiple-output channel are described. The systems and methods for optimizing reduce the multiple-input multiple-output channel for each transmission scheme to an equivalent single-input single-output channel for the transmission scheme and transmit the plurality of data streams based on the single-input single-output channel for the transmission scheme. Systems and methods for optimizing the transfer of data for any number of transmit and receive antennas are described.Type: GrantFiled: February 14, 2006Date of Patent: June 9, 2009Inventors: Vummintala Shashidhar, Vara J. Prasad, Ozgur Oyman, Erik Lindskog, Robert Lorenz, Kamlesh Rath
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Publication number: 20080181142Abstract: A method and system for managing change-over in radio functionality at a radio front-end in a Time Division Duplexing (TDD) system is provided. The method comprises storing one or more control commands. The one or more control commands may correspond to the change-over. The change-over may be a transmitter-to-receiver change-over or a receiver-to-transceiver change-over. The method further comprises receiving a trigger time corresponding to the one or more control commands. The trigger time comprises a timing requirement for the change-over. Thereafter, one or more control commands are released based on a predetermined condition.Type: ApplicationFiled: January 31, 2007Publication date: July 31, 2008Inventors: David Garrett, Robert Lorenz, Trevor Pearman
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Publication number: 20080098056Abstract: A method for detecting a positioning signal includes (a) correlating a segment of a received positioning signal with a reference signal of a selected code phase and frequency to obtain a correlation value, (b) if the correlation value is less than a predetermined minimum, assigning the correlation value to the predetermined minimum, and (c) accumulating the correlation value in a sum of correlation values obtained using other segments of the received positioning signal. In addition, the correlation value may be reduced by a predetermined value, which is preferably an expected mean value for a noise component in the segment of the received positioning signal.Type: ApplicationFiled: December 21, 2007Publication date: April 24, 2008Inventors: Julien Basch, Andrew Chou, Robert Lorenz, Jesse Stone