Patents by Inventor Michael Sylvester
Michael Sylvester 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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Patent number: 9231546Abstract: Circuitry formed of a two-dimensional regular array of capacitive elements 2 is coupled to decoding circuitry in the form of column decoder 8 and a row decoder 6. The decoders 8, 6 are used to select a start point and an end point within a sequence of selected capacitive elements to be connected in parallel following a horizontal raster scan arrangement. The selected capacitive elements may be used to generate an output voltage with a magnitude corresponding to the number of selected capacitive elements.Type: GrantFiled: June 6, 2014Date of Patent: January 5, 2016Assignee: The Regents of the University of MichiganInventors: Sechang Oh, Wanyeong Jung, David Theodore Blaauw, Dennis Michael Sylvester
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Publication number: 20150207508Abstract: A level conversion circuit has a keeper circuit for retaining an intermediate output node at a high output level to avoid it floating due to leakage through a pullup transistor in a shifting circuit. Thin oxide and thick oxide versions of the level conversion circuit can be provided. The level conversion circuit enables higher performance, reduced power consumption and reduced susceptibility to process variation compared to previous level conversion designs.Type: ApplicationFiled: January 22, 2014Publication date: July 23, 2015Applicant: The Regents of The University of MichiganInventors: Allan Ailun WANG, David Theodore Blaauw, Dennis Michael Sylvester
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Patent number: 9065431Abstract: Signal value storage circuitry 2 is provided which includes a first transistor stack, a second transistor stack and a third transistor stack. The signal value storage circuitry is controlled by a single clock signal. Keeper transistors and isolation transistors serve to permit static operation of the signal value storage circuitry (i.e. the clock signal may be stopped without losing state) and to prevent contention within the circuitry.Type: GrantFiled: April 11, 2013Date of Patent: June 23, 2015Assignee: The Regent of the University of MichiganInventors: Yejoong Kim, Michael B. Henry, Dennis Michael Sylvester, David Theodore Blaauw
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Publication number: 20150155014Abstract: Memory circuitry 2 includes an array 4 of bit cells 6. One or more boost capacitors C1, C2 are connected to bit lines 8 running through the array 4 and serve to store a sample charge with a sample voltage difference during a sampling configuration of the boost capacitors C1, C2. A boost configuration is subsequently adopted in which the boost capacitors C1, C2 are connected with a different plurality to respective bit lines 8 such that the sample voltage difference is added to the voltage change within the bit line produced by the bit line cell 6 so as to generate an increased magnitude change in voltage which is supplied to sense amplifier circuitry 12.Type: ApplicationFiled: November 29, 2013Publication date: June 4, 2015Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Bharan GIRIDHAR, David Theodore Blaauw, Dennis Michael Sylvester
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Publication number: 20150154006Abstract: A true random number generator comprises a ring oscillator which is triggered to start oscillating in a first mode of oscillation at an oscillation start time. The first mode of oscillation will eventually collapse to a second mode of oscillation dependent on thermal noise. A collapse time from the oscillation start time to the time at which the oscillator collapses to the second mode is measured, and this can be used to determine a random number. The TRNG can be synthesized entirely using standard digital techniques and is able to provide high randomness, good throughput and energy efficiency.Type: ApplicationFiled: November 29, 2013Publication date: June 4, 2015Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Kaiyuan YANG, Dennis Michael Sylvester, David Theodore Blaauw, David Alan Fick, Michael B. Henry, Yoonmyung Lee
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Patent number: 9036405Abstract: Memory circuitry comprising an array of 6T bit cells 6 in which columns of bit cells are coupled together via bit line pairs 8 connected to respective sense amplifier circuitry 10 is provided. The sense amplifier circuitry includes an inverter pair 12, 14 and control circuitry which is configured to control the sense amplifier circuitry to operate in a plurality of modes including an offset compensation mode, an amplification mode and a latching mode.Type: GrantFiled: November 27, 2013Date of Patent: May 19, 2015Assignee: The Regents of the University of MichiganInventors: Bharan Giridhar, David Theodore Blaauw, Dennis Michael Sylvester
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Publication number: 20150015305Abstract: Synchronisation circuitry 2 comprises a first dynamic circuit stage 4 generating a first stage state signal which is pulse amplified by pulse amplifying circuitry 8 to generate a pulse amplified signal. The pulse amplified signal is supplied to a second dynamic circuit stage 6 where it is used to control generation of a second stage state signal. The pulse amplifying circuitry 8 comprises a chain of serially connected skewed inverters 20, 22. The action of the pulse amplifying circuitry 8 is to reduce the probability of metastability in the output of the second dynamic stage 6.Type: ApplicationFiled: July 12, 2013Publication date: January 15, 2015Inventors: Bharan GIRIDHAR, Matthew Rudolph Fojtik, David Alan Fick, Dennis Michael Sylvester, David Theodore Blaauw
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Patent number: 8924269Abstract: A business object model, which reflects data that is used during a given business transaction, is utilized to generate interfaces. This business object model facilitates commercial transactions by providing consistent interfaces that are suitable for use across industries, across businesses, and across different departments within a business during a business transaction.Type: GrantFiled: May 11, 2007Date of Patent: December 30, 2014Assignee: SAP AGInventors: Michael Seubert, Andre Wagner, Andreas Brossler, Andreas Leukert-Knapp, Andreas Poth, Arno Eifel, Axel Kuehl, Benjamin Klehr, Danny Pannicke, Frank Reinemuth, Georg Dopf, Georg Podhajsky, Giovanni Deledda, Gunther Liebich, Jochen Steinbach, Klaus Reinelt, Klaus Schlappner, Martin Gaub, Martin Schorr, Martin Von der Emder, Michael Sylvester, Ralf Schliehe-Diecks, Robert Bieber, Robert Doerner, Robert Reiner, Rudolf Winkel, Sergey Alekseev, Stefan Adelmann, Stefan Franke, Tanjana Preiser-Funke, Thilo Kraehmer, Thomas Hoffmann, Thomas Nitschke, Werner Gnan, Yongbin He, Anil Joshi Jetti, Christian Saalfrank, Sunsil S. Parvatikar, Sabine Montnacher
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Patent number: 8868817Abstract: Interconnect circuitry 2 has a plurality of data source circuits 8 connected to respective input paths 4 and a plurality of data destination circuits 10 connected to respective output paths 6. Connection cells 12 provide selective connections between input paths 4 and output paths 6. Arbitration circuitry 26 provides adaptive priority arbitration between overlapping requests received at different input paths. Priority bits 16 within a matrix of priority bit 46 for each output path 10 are used to represent the priority relationships between different input paths which compete for access to that output path 10. Update operations are applied on a per row or per column basis within the matrix to implement update schemes such as least recently granted, most recently granted, round robin, reversal, swap, selective least recently granted, selective most recently granted etc.Type: GrantFiled: April 4, 2012Date of Patent: October 21, 2014Assignee: The Regents of the University of MichiganInventors: Sudhir Kumar Satpathy, David Theodore Blaauw, Dennis Michael Sylvester, Trevor Nigel Mudge
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Patent number: 8726529Abstract: A sensor assembly for measuring relative rotary movement about a pivot joint having an axis of rotation between a first member and a second member.Type: GrantFiled: March 27, 2012Date of Patent: May 20, 2014Assignee: CNH Industrial America LLCInventors: Christopher Jerel Brosz, Olaf Niedziolka, Mark Allan Renard, Michael Sylvester Bares, Brad Johnson, Shannon Peter Roehrich
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Patent number: 8714310Abstract: A work vehicle includes a frame and an axle assembly coupled to the frame, including a first axle shaft and coil substantially disposed in an axle housing. A first wheel couples to the first axle shaft of the axle assembly. An axle lubricating fluid is disposed within the axle housing. A cooling circuit fluidly coupled to the axle assembly circulates cooling fluid therethrough. The coil conducts cooling fluid through the first axle housing separately from the lubricating fluid. A cooling fluid circuit is selectively fluidly coupled to the first coil to circulate the cooling fluid therethrough.Type: GrantFiled: August 22, 2007Date of Patent: May 6, 2014Assignee: CNH America LLCInventors: Michael Sylvester Bares, Jarrod Lemire, Jeffrey Alan Roeber
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Patent number: 8713232Abstract: An apparatus including a first circuit and a second circuit connected in parallel to the bidirectional communication path, and one of the first and second circuits being an active circuit monitoring a value of the data signal on the bidirectional communication path while the other of the first and second circuits being a passive circuit that is not monitoring the value of the data signal. The active circuit initially starts in a low gain state, but on detection of a transition by transition detection circuitry, it enters a high gain state where the switch circuitry disconnects the transition detection circuitry from the bidirectional communication path, and the drive circuitry is activated in order to drive the data signal on the bidirectional communication path to the opposite value. Once the data signal has been driven to the opposite value, the active circuit and the passive circuits switch states.Type: GrantFiled: February 8, 2012Date of Patent: April 29, 2014Assignee: The Regents of the University of MichiganInventors: Sudhir Kumar Satpathy, David Theodore Blaauw, Dennis Michael Sylvester
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Publication number: 20130255089Abstract: A sensor assembly for measuring relative rotary movement about a pivot joint having an axis of rotation between a first member and a second member.Type: ApplicationFiled: March 27, 2012Publication date: October 3, 2013Inventors: Christopher Jerel BROSZ, Olaf Niedziolka, Mark Allan Renard, Michael Sylvester Bares, Brad Johnson, Shannon Peter Roehrich
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Patent number: 8549207Abstract: Crossbar circuitry has an array of data input and output paths where the data output paths are transverse to the data input paths. At each intersection between a data input path and a data output path, a crossbar cell is provided which includes a configuration storage circuit programmable to store a routing value, a transmission circuit, and an arbitration circuit. In a transmission mode of operation, the transmission circuit is responsive to the routing value being a first value, indicating that the data input path should be coupled to the data output path, to detect the data input along the data input path, and to output an indication of that data on the data output path at the associated intersection. In an arbitration mode of operation, the arbitration circuitry is operable to selectively modify the voltage on said plurality of bit lines in order to apply an adaptive priority scheme.Type: GrantFiled: November 18, 2010Date of Patent: October 1, 2013Assignee: The Regents of the University of MichiganInventors: Sudhir Kumar Satpathy, David Theodore Blaauw, Trevor Nigel Mudge, Dennis Michael Sylvester
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Patent number: 8526261Abstract: An integrated circuit memory 2 is provided with an array of memory cells 4 and power supply circuitry 10, 12. Detected operating errors in malfunctioning memory cells 14 are identified using a built-in-self-test controller 34. The power supply circuitry 10, 12 is then configured to alter the voltage supply to the malfunctioning memory cells 14 in an attempt to correct their operation. The voltage supply of the row containing the malfunctioning memory cell and the column containing the malfunctioning memory cell may both be altered. The voltage alteration may be an increase or a decrease in voltage supply depending upon the nature of the malfunction detected.Type: GrantFiled: March 2, 2009Date of Patent: September 3, 2013Assignee: The Regents of the University of MichiganInventors: Gregory Kengho Chen, Dennis Michael Sylvester, David Theodore Blaauw
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Publication number: 20130205056Abstract: An apparatus including a first circuit and a second circuit connected in parallel to the bidirectional communication path, and one of the first and second circuits being an active circuit monitoring a value of the data signal on the bidirectional communication path whilst the other of the first and second circuits being a passive circuit that is not monitoring the value of the data signal. The active circuit initially starts in a low gain state, but on detection of a transition by transition detection circuitry, it enters a high gain state where the switch circuitry disconnects the transition detection circuitry from the bidirectional communication path, and the drive circuitry is activated in order to drive the data signal on the bidirectional communication path to the opposite value. Once the data signal has been driven to the opposite value, the active circuit and the passive circuits switch states.Type: ApplicationFiled: February 8, 2012Publication date: August 8, 2013Applicant: The Regents of the University of MichiganInventors: Sudhir Kumar SATPATHY, David Theodore Blaauw, Dennis Michael Sylvester
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Patent number: 8491361Abstract: A hand-held tool for resurfacing wiper blades which may be utilized with the wiper blade still installed on a vehicle. The tool includes a case having a rectangular cross section. Enclosed within the case are two resurfacing stones: a first resurfacing stone having a rougher surface and a second polishing stone for applying a final finish to the wiper blade. One or more float springs are situated inside the case and between the resurfacing stones to apply pressure to the stones and to assure that appropriate resurfacing pressure is applied to the wiper blade.Type: GrantFiled: April 28, 2010Date of Patent: July 23, 2013Inventor: Michael Sylvester
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Patent number: 8442850Abstract: Methods and apparatus, including systems and computer program products, for a services architecture design that provides enterprise services having accounting functionality at the level of an enterprise application. The design includes a set of service operations, process components, and optionally deployment units. Suitable business objects are also described.Type: GrantFiled: March 30, 2006Date of Patent: May 14, 2013Assignee: SAP AGInventors: Martin Schorr, Michael Sylvester, Georg Dopf, Dirk Henrich, Gunther Liebich, Michael Conrad, Andreas Reccius, Markus Klein, Michael Hohendorf, Andrea Roesinger, Rainer Soltek, Juergen Kind, Ralf Dinkel, Peter Von Zimmermann, Daniel Bock, Udo Laub, Thomas Schachner, Gerald Paetzold, Kai-Michael Roesner, Edwin Himmelsbach, Torsten Bachmann, Volker Faisst, Otfried Von Geisau, Michael Meyringer, Ralf Klein, Dieter Krisch
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Patent number: 8407025Abstract: An apparatus for processing data 2 is provided with a time-to-digital converter 18 which serves to measure signal processing delay through one or more signal paths through a processing stage. This measured delay generates a delay value representing a plurality of instances of the signal processing delay which have been measured. Analysis is performed under software control to estimate a worst case signal processing delay through the processing stage based upon the delay values which have been generated. An adjustment of the operating parameters, such as supply voltage and clock frequency, of the apparatus is made to provide a timing margin through the processing stage sufficient to satisfy the worst case signal processing delay which has been estimated without an excessive margin.Type: GrantFiled: February 25, 2009Date of Patent: March 26, 2013Assignees: ARM Limited, The Regents of the University of MichiganInventors: David Theodore Blaauw, Dennis Michael Sylvester, David Alan Fick, Stuart David Biles, Michael John Wieckowski, Scott McLean Hanson, Gregory Kengho Chen
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Publication number: 20120254491Abstract: Interconnect circuitry 2 has a plurality of data source circuits 8 connected to respective input paths 4 and a plurality of data destination circuits 10 connected to respective output paths 6. Connection cells 12 provide selective connections between input paths 4 and output paths 6. Arbitration circuitry 26 provides adaptive priority arbitration between overlapping requests received at different input paths. Priority bits 16 within a matrix of priority bit 46 for each output path 10 are used to represent the priority relationships between different input paths which compete for access to that output path 10. Update operations are applied on a per row or per column basis within the matrix to implement update schemes such as least recently granted, most recently granted, round robin, reversal, swap, selective least recently granted, selective most recently granted etc.Type: ApplicationFiled: April 4, 2012Publication date: October 4, 2012Applicant: The Regents of the University of MichiganInventors: Sudhir Kumar SATPATHY, David Theodor Blaauw, Dennis Michael Sylvester, Trevor N. Mudge