Patents by Inventor David A. Carlson

David A. Carlson 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).

  • Publication number: 20080061602
    Abstract: There is disclosed a reinforcement material for forming reinforced members. The reinforcement material includes a strengthening material which is preferably a fabric disposed at least partially between portions of matrix material.
    Type: Application
    Filed: November 21, 2007
    Publication date: March 13, 2008
    Applicant: Zephyros, Inc.
    Inventors: Michael Czaplicki, David Carlson
  • Publication number: 20080046024
    Abstract: Systems and methods for detecting and/or treating nervous system disorders, such as seizures, are disclosed. Certain embodiments of the invention relate generally to implantable medical devices (IMDs) adapted to detect and treat nervous system disorders in patients with an IMD. Certain embodiments of the invention include detection of seizures based upon comparisons of long-term and short-term representations of physiological signals. Other embodiments include prediction of seizure activity based upon analysis of physiological signal levels. An embodiment of the invention monitors the quality of physiological signals, and may be able to compensate for signals of low signal quality. A further embodiment of the invention includes detection of seizure activity following the delivery of therapy.
    Type: Application
    Filed: December 12, 2006
    Publication date: February 21, 2008
    Applicant: MEDTRONIC, INC.
    Inventors: David Carlson, Eric Panken, Touby Drew, Jonathan Werder
  • Publication number: 20080029214
    Abstract: An adhesive is provided for bonding to a first surface, a second surface or both. The adhesive typically includes at least one curing agent that cures through exposure to a condition such as heat, moisture or a combination thereof.
    Type: Application
    Filed: July 25, 2007
    Publication date: February 7, 2008
    Applicant: Zephyros, Inc.
    Inventors: Christopher Hable, Matthew Harthcock, David Carlson, David Kosal, Brandon Madaus
  • Publication number: 20080033508
    Abstract: Apparatus and method detect a detection cluster that is associated with a neurological event, such as a seizure, of a nervous system disorder and update therapy parameters that are associated with a treatment therapy. The occurrence of the detection cluster is detected when the maximal ratio exceeds an intensity threshold. If the maximal ratio drops below the intensity threshold for a time interval that is less than a time threshold and subsequently rises above the intensity threshold, the subsequent time duration is considered as being associated with the detection cluster rather than being associated with a different detection cluster. Consequently, treatment of the nervous system disorder during the corresponding time period is in accordance with one detection cluster. Treatment therapy may be provided by providing electrical stimulation, drug infusion or a combination.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 7, 2008
    Applicant: MEDTRONIC, INC.
    Inventors: Mark Frei, Ivan Osorio, Nina Graves, Scott Schaffner, Mark Rise, Jonathon Giftakis, David Carlson
  • Publication number: 20080022751
    Abstract: Systems and methods are disclosed that include adjusting a pressure level of a sample gas in a testing chamber, for example, using a pressurized inert reference gas, and determining a composition of the adjusted sample gas. By adjusting the pressure level of the sample gas, the composition of the sample gas may be determined more accurately than otherwise possible. Numerous other aspects are disclosed.
    Type: Application
    Filed: July 30, 2007
    Publication date: January 31, 2008
    Inventors: David Carlson, Satheesh Kuppurao
  • Publication number: 20080014350
    Abstract: Methods and apparatus are disclosed for the formation of vaporizing liquid precursor materials. The methods or apparatus can be used as part of a chemical vapor deposition apparatus or system, for example for forming films on substrates. The methods and apparatus involve providing a vessel for containing a liquid precursor and diffusing element having external cross-section dimensions substantially equal to the internal cross-sectional dimensions of the vessel.
    Type: Application
    Filed: April 9, 2007
    Publication date: January 17, 2008
    Inventors: David Carlson, Errol Sanchez, Satheesh Kuppurao
  • Patent number: 7318873
    Abstract: There is disclosed a reinforcement material for forming reinforced members. The reinforcement material includes a strengthening material which is preferably a fabric disposed at least partially between portions of matrix material.
    Type: Grant
    Filed: January 7, 2003
    Date of Patent: January 15, 2008
    Assignee: Zephyros, Inc.
    Inventors: Michael J. Czaplicki, David Carlson
  • Patent number: 7313865
    Abstract: There is disclosed a member for reinforcing, sealing or baffling a structure of an article of manufacture such as an automotive vehicle. The member preferably includes a carrier member and an activatable (e.g., expandable, curable or both) material disposed upon a surface of the carrier member. The carrier member is preferably formed of a thermosettable material such as a molding compound (e.g., a sheet or bulk molding compound).
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: January 1, 2008
    Assignee: ZEPHYROS, Inc.
    Inventors: Michael J. Czaplicki, Jon Riley, David Carlson
  • Publication number: 20070295399
    Abstract: A photovoltaic cell comprising a wafer comprising a semiconductor material of a first conductivity type, the wafer comprising a first light receiving surface and a second surface opposite the first surface; a first passivation layer positioned over the first surface of the wafer; a first electrical contact comprising point contacts positioned over the second surface of the wafer and having a conductivity type opposite to that of the wafer; and a second electrical contact comprising point contacts and positioned over the second surface of the wafer and separated electrically from the first electrical contact and having a conductivity type the same as that of the wafer.
    Type: Application
    Filed: June 14, 2007
    Publication date: December 27, 2007
    Applicant: BP Corporation North America Inc.
    Inventor: David Carlson
  • Publication number: 20070260147
    Abstract: A medical device system and method for monitoring cardiac signal activity in patients with nervous system disorders. In some embodiments, a brain signal and a cardiac signal are received by a processor, brain events are identified in the brain signal, and the brain events are used to identify portions of the cardiac signal. In some embodiments, Event portions of the cardiac signal are identified corresponding to brain event time periods, and Inter-event portions are identified corresponding to time periods between brain events. An Inter-event heart-rate variability (HRV) calculation is performed using Inter-event portions of the cardiac signal, and an output of the medical device system is modified based upon the calculated Inter-event HRV according to certain embodiments of the invention. An Event HRV may also be calculated according to certain embodiments, and an output modified based on comparisons of the Event HRV to the Inter-event HRV, for example.
    Type: Application
    Filed: June 22, 2007
    Publication date: November 8, 2007
    Applicant: MEDTRONIC, INC.
    Inventors: Jonathon Giftakis, David Carlson, Eric Panken, Nina Graves, Mark Rise, Kevin Bright, Chark Stanford
  • Publication number: 20070259535
    Abstract: Methods are disclosed of fabricating a compound nitride semiconductor structure. A substrate is disposed over a susceptor in a processing chamber, with the susceptor in thermal communication with the substrate. A group-III precursor and a nitrogen precursor are flowed into the processing chamber. The susceptor is heated with a nonuniform temperature profile to heat the substrate. A nitride layer is deposited over the heated substrate with a thermal chemical vapor deposition process within the processing chamber using the group-III precursor and the nitrogen precursor.
    Type: Application
    Filed: May 5, 2006
    Publication date: November 8, 2007
    Applicant: Applied Materials, Inc.
    Inventors: Lori Washington, Sandeep Nijhawan, David Carlson
  • Patent number: 7290828
    Abstract: There is disclosed a system and method of employing a porous container for sealing, baffling, reinforcing or a combination thereof. According to the method, a porous container having one or more openings is provided. An expandable material is associated with the container and is preferably placed within the container. Thereafter, the expandable material is expanded to contact and adhere to a structure of an article of manufacture (e.g., an automotive vehicle).
    Type: Grant
    Filed: June 2, 2005
    Date of Patent: November 6, 2007
    Assignee: Zephyros, Inc.
    Inventors: David J. Kosal, Kevin Hicks, David Carlson, Michael J. Czaplicki, Serge Bieber, Dominique Busseuil
  • Publication number: 20070255155
    Abstract: A method and apparatus is provided for handling multiple loop recordings that result from events in a limited memory implantable device. The events may include various automatic and manual triggers. The method provides a mechanism for deciding the amount of information to store associated with each overlapping loop recording.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Applicant: Medtronic, Inc.
    Inventors: Touby Drew, David Carlson
  • Publication number: 20070255147
    Abstract: A method and apparatus is provided for handling multiple recordings that result from events in a limited memory device. The events may include various automatic and manual triggers. The method provides a mechanism for storing different configurations of data, associated with different events.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Applicant: Medtronic, Inc.
    Inventors: Touby Drew, David Carlson
  • Publication number: 20070250517
    Abstract: A latent auxiliary database structure constructed for executing a query is automatically saved for reuse in subsequent query execution instances. The latent auxiliary database structure is not maintained concurrently with changes to records in the database tables. If a query execution strategy is subsequently invoked which uses the latent auxiliary database structure, a determination is made dynamically whether to update the previously saved latent structure from database changes recorded in one or more change logs, or to rebuild the latent structure from scratch. Where the cost of updating from the change log is deemed less than the cost of a rebuild from scratch, the previously saved latent structure is updated from the log.
    Type: Application
    Filed: April 20, 2006
    Publication date: October 25, 2007
    Inventors: Robert Bestgen, Curtis Boger, David Carlson, Robert Downer, Steven Hoeschen, Kevin Kathmann, Shantan Kethireddy
  • Publication number: 20070249953
    Abstract: Systems and methods for detecting and/or treating nervous system disorders, such as seizures, are disclosed. Certain embodiments of the invention relate generally to implantable medical devices (IMDs) adapted to detect and treat nervous system disorders in patients with an IMD. Certain embodiments of the invention include detection of seizures based upon comparisons of long-term and short-term representations of physiological signals. Other embodiments include prediction of seizure activity based upon analysis of physiological signal levels. A further embodiment of the invention includes detection of seizure activity following the delivery of therapy.
    Type: Application
    Filed: December 12, 2006
    Publication date: October 25, 2007
    Applicant: MEDTRONIC, INC.
    Inventors: Mark Frei, Ivan Osorio, David Carlson, Eric Panken, Touby Drew
  • Publication number: 20070240632
    Abstract: Embodiments of the invention relate to methods for depositing silicon-containing materials on a substrate. In one example, a method for selectively and epitaxially depositing a silicon-containing material is provided which includes positioning and heating a substrate containing a crystalline surface and a non-crystalline surface within a process chamber, exposing the substrate to a process gas containing neopentasilane, and depositing an epitaxial layer on the crystalline surface. In another example, a method for blanket depositing a silicon-containing material is provide which includes positioning and heating a substrate containing a crystalline surface and feature surfaces within a process chamber and exposing the substrate to a process gas containing neopentasilane and a carbon source to deposit a silicon carbide blanket layer across the crystalline surface and the feature surfaces.
    Type: Application
    Filed: October 12, 2006
    Publication date: October 18, 2007
    Inventors: Kaushal Singh, Paul Comita, Lance Scudder, David Carlson
  • Publication number: 20070232031
    Abstract: A method of preparing a clean substrate surface for blanket or selective epitaxial deposition of silicon-containing and/or germanium-containing films. In addition, a method of growing the silicon-containing and/or germanium-containing films, where both the substrate cleaning method and the film growth method are carried out at a temperature below 750° C., and typically at a temperature from about 700° C. to about 500° C. The cleaning method and the film growth method employ the use of radiation having a wavelength ranging from about 310 nm to about 120 nm in the processing volume in which the silicon-containing film is grown. Use of this radiation in combination with particular partial pressure ranges for the reactive cleaning or film-forming component species enable the substrate cleaning and epitaxial film growth at temperatures below those previously known in the industry.
    Type: Application
    Filed: May 22, 2007
    Publication date: October 4, 2007
    Inventors: Kaushal Singh, David Carlson, Manish Hemkar, Satheesh Kuppurao, Randhir Thakur
  • Patent number: 7262116
    Abstract: A method of preparing a clean substrate surface for blanket or selective epitaxial deposition of silicon-containing and/or germanium-containing films. In addition, a method of growing the silicon-containing and/or germanium-containing films, where both the substrate cleaning method and the film growth method are carried out at a temperature below 750° C., and typically at a temperature from about 700° C. to about 500° C. The cleaning method and the film growth method employ the use of radiation having a wavelength ranging from about 310 nm to about 120 nm in the processing volume in which the silicon-containing film is grown. Use of this radiation in combination with particular partial pressure ranges for the reactive cleaning or film-forming component species enable the substrate cleaning and epitaxial film growth at temperatures below those previously known in the industry.
    Type: Grant
    Filed: April 10, 2006
    Date of Patent: August 28, 2007
    Assignee: Applied Materials, Inc.
    Inventors: Kaushal K. Singh, David Carlson, Manish Hemkar, Satheesh Kuppurao, Randhir Thakur
  • Patent number: 7260217
    Abstract: In one embodiment, a computer-implemented method comprises receiving a data cipher operation. The method also comprises processing the data cipher operation. The processing of the operation includes generating a number of portions of ciphertext from plaintext, wherein a load operation associated with the generating of at least one portion of the ciphertext executes prior to a store operation associated with the generating of a prior portion of the ciphertext.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: August 21, 2007
    Assignee: Cavium Networks, Inc.
    Inventor: David A. Carlson