Patents Represented by Attorney, Agent or Law Firm Daniel L. Dawes
  • Patent number: 8334984
    Abstract: A plurality of Fabry-Perot interferometric sensors are optically coupled in series with each other to form an ordered optical series. Each Fabry-Perot interferometric sensor has a unique signalband and a passband. Each Fabry-Perot interferometric sensor has its unique signalband within the passbands of all of the next higher ordered Fabry-Perot interferometric sensors in the optical series so that a corresponding unique fringe signal from each of the Fabry-Perot interferometric sensors is a multiplexed output from the optical series.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: December 18, 2012
    Assignee: The Regents of the University of California
    Inventors: Maximillian A. Perez, Andrei A. Shkel
  • Patent number: 8201646
    Abstract: A rotating cone drill bit includes a plurality of mud nozzles extending from the bit body, which are thermally fitted by controlling the temperature differential of 300° F.-900° F. depending on the corresponding materials of the elements to be fitted, the amount of fit desired, and the diameters of the elements to be fitted and which provide substantially obstruction-free mud paths toward the wellbore bottom. The bit has a plurality of reduced diameter cutter assemblies, each having a journal projecting from a corresponding leg. The journal has at least two cylindrical bearing surfaces and an annular groove formed therebetween and a spindle. An annular retention segment is rotatably mounted in the groove. The retention segment has an outer radial surface engaging a portion of one of the bearing surfaces of the cone, and an energy beam welding area fusing substantially the entire engaging surfaces of the retention segment and the cone.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: June 19, 2012
    Inventor: Edward Vezirian
  • Patent number: 8158010
    Abstract: A filter sleeve is fabricated from a variety of media selected to preferentially remove particulates and specific contaminants from water or other liquids. The layers of the filter sleeve may be configured to remove 1-micron particulates, while another layer or layers may be configured to remove a range of petroleum hydrocarbons, fats, oils, and greases, while yet another layer may be configured to remove metals, and yet another layer could be configured to remove bacteria, algae, mold, and fungus. Filter sleeves that are configured to remove different particulate sizes and contaminants can be used simultaneously by placing the filter sleeves inside one another to accrue the capabilities of several individual filter sleeves as one unit. The filter sleeve can be used to remove particulates and hydrocarbons from waste water accumulated in underground vaults, enabling such waste water to be discharged directly into the ambient environment.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: April 17, 2012
    Inventors: Herb Pearse, Mary Peacock
  • Patent number: 8150433
    Abstract: An improvement in a method of transmit beamforming between a transmitter (16) and a receiver (18) for a time varying lading channel comprises the step of performing transmit beamforming using less than complete knowledge of the previous fading blocks to design a codebook (26a) of a current fading block with each time frame. One embodiment comprises a successive beamforming algorithm and a second embodiment comprises a vector quantization beamforming algorithm. A fading parameter ? is determined at least in the transmitter or receiver by monitoring a mobile Doppler frequency.
    Type: Grant
    Filed: August 15, 2006
    Date of Patent: April 3, 2012
    Assignee: The Regents of the University of California
    Inventors: Li Liu, Hamid Jafarkhani
  • Patent number: 8094841
    Abstract: The illustrated embodiment of the invention includes a capacitive detection method in a MEMS resonator comprising the steps of: vibrating a resonator with a drive signal; sensing vibration of the resonator by detecting a plurality of sidebands of an electromechanical amplitude modulation signal in a capacitive detector; and extracting amplitude of motion from a ratio of two simultaneously sensed sidebands of different order.
    Type: Grant
    Filed: January 9, 2008
    Date of Patent: January 10, 2012
    Assignee: The Regents of the University of California
    Inventors: Alexander A. Trusov, Andrei M. Shkel
  • Patent number: 8073869
    Abstract: A method to support efficient, interactive, and fuzzy search on text data includes an interactive, fuzzy search on structured data used in applications such as query relaxation, autocomplete, and spell checking, where inconsistencies and errors exist in user queries as well as data. It utilizes techniques to efficiently and interactively answer fuzzy queries on structured data to allow users to efficiently search for information interactively, and they can find records and documents even if these records and documents are slightly different from the user keywords.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: December 6, 2011
    Assignee: The Regents of the University of California
    Inventors: Chen Li, Shengyue Ji, Guoliang Li, Jiannan Wang, Jianhua Feng
  • Patent number: 8048061
    Abstract: An adapter for an introducer comprises a medical device having a tubular port on a proximal end such as a splittable hemostatic valve. A tubular fitting is provided on a proximal end of the introducer. An elastomeric member is disposed between the port of the medical device and the tubular fitting of the introducer for providing a fluid tight and mechanically secure connection therebetween. The introducer and valve are manually connectable and reconnectable with each other while maintaining the fluid tight connection between them. A side port may communicate with the hemostatic valve, the side port having a controllable valve ending. In the preferred embodiment the introducer comprises a splittable introducer. In the illustrated embodiment the elastomeric member provides a slip fit between the medical device and the tubular fitting of the introducer. A tab extends from the tubular fitting of the introducer to facilitate manual manipulation of the tubular fitting.
    Type: Grant
    Filed: October 22, 2002
    Date of Patent: November 1, 2011
    Assignee: Pressure Products Medical Supplies, Inc.
    Inventors: Paul A. Kurth, Andrew W. Armour, Joseph J. Thomas, Douglas A. Kratz
  • Patent number: 8006578
    Abstract: A converter for use in a high speed rotationally oscillating surgical burring device comprises an output shaft, and a rotationally oscillating secondary drive rotor coupled to the output shaft. The secondary drive rotor is arranged and configured with a size and mass to minimize its angular momentum. A unidirectionally rotating primary drive rotor is provided. A linearly reciprocating transmission converts unidirectional rotation to bidirectional rotational oscillation coupling the primary and secondary drive rotors. The transmission is arranged and configured with a size and mass to minimize its linear momentum. An input shaft is coupled to the rotating primary drive rotor to which a unidirectional rotational force is applied.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: August 30, 2011
    Inventor: Douglas P. Kiester
  • Patent number: 7996369
    Abstract: A computer process, called VGRAM, improves the performance of these string search algorithms in computers by using a carefully chosen dictionary of variable-length grams based on their frequencies in the string collection. A dynamic programming algorithm for computing a tight lower bound on the number of common grams shared by two similar strings in order to improve query performance is disclosed. A method for automatically computing a dictionary of high-quality grams for a workload of queries. Improvement on query performance is achieved by these techniques by a cost-based quantitative approach to deciding good grams for approximate string queries. An approach for answering approximate queries efficiently based on discarding gram lists, and another is based on combining correlated lists. An indexing structure is reduced to a given amount of space, while retaining efficient query processing by using algorithms in a computer based on discarding gram lists and combining correlated lists.
    Type: Grant
    Filed: December 14, 2008
    Date of Patent: August 9, 2011
    Assignee: The Regents of the University of California
    Inventors: Chen Li, Bin Wang, Xaochun Yang, Alexander Behm, Shengyue Ji, Jiaheng Lu
  • Patent number: 7993351
    Abstract: An introducer system for implantation of pacemaker leads into the venous system of the human heart through the coronary sinus is comprised of a flexible, elongate, outer elongate element having a first shape or bias along a portion. The first shape on the outer element may be prebiased or may be initially straight and subsequently biased once deployed in the body chamber. A flexible, elongate, telescopic inner elongate element has a second shape or bias on its distal portion and has the first shape or bias on a more proximal portion. The inner elongate element is telescopically disposed in the outer sheath.
    Type: Grant
    Filed: July 24, 2002
    Date of Patent: August 9, 2011
    Assignee: Pressure Products Medical Supplies, Inc.
    Inventors: Seth J. Worley, Paul Kurth
  • Patent number: 7940302
    Abstract: A security system which is nonintrusive of personal privacy of a person in a space comprises at least a first localization sensor subsystem, if any, in the possession of the person; a video surveillance subsystem arranged and configured to collect visual data related to the person in the space; and a computer subsystem coupled to the localization sensor subsystem and video surveillance subsystem to associate a predetermined privacy level with the localization sensor subsystem, and to provide an access control privilege with the localization sensor subsystem, the computer subsystem determining how to present, store and/or retrieve the visual data while meeting predetermined the privacy level associated with the person.
    Type: Grant
    Filed: September 14, 2005
    Date of Patent: May 10, 2011
    Assignee: The Regents of the University of California
    Inventors: Sharad Mehrotra, Mohanned Alhazzazi, Mahesh Datt, Nalini Venkatasubramanian, Jehan Wickramasuriya
  • Patent number: 7939355
    Abstract: An accelerometer and a method of fabricating an integrated accelerometer comprises the steps of providing an SOI wafer with a selected resistivity to eliminate any need for additional doping of the SOI wafer, providing a single mask on the SOI wafer, and simultaneously defining all components of the accelerometer in the SOI wafer without using any pn-junctions to define any piezoresistive components and to provide the same resistivity of all components. The step of simultaneously defining all components of the accelerometer in the SOI wafer comprises defining all components of a linear or angular accelerometer.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: May 10, 2011
    Assignee: The Regents of the University of California
    Inventors: Erik J. Eklund, Andrei M. Shkel
  • Patent number: 7854910
    Abstract: A conventional air preheater or the conventional design of a preheater is split into two separate sections which are then communicated or connected by a thermally insulated reaction section that is maintained within a predetermined temperature range selected for optimization of heterogeneous chemi-deposition of mercury. The reaction section contains thin stainless steel sheeting which provide an enhanced area of collisional surfaces. Testing has confirmed that this design modification alters the energy heat exchanger to also enhance the oxidation of gaseous elemental mercury in combustion or high temperature source flue gases by providing the surfaces and time for the heterogeneous mechanisms to occur and so control mercury emissions in exhaust gases from coal combustion or other high temperature systems that contain traces of mercury.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: December 21, 2010
    Inventor: Keith Schofield
  • Patent number: 7789547
    Abstract: An improvement in LED lighting simulative of neon lighting comprises a light cable (3). A clamp (2) coupled to the cable (3) holds an end of the cable (3) in a predetermined bend, and an LED (14) is optically coupled to the cable (3). A support (11) is coupled to the clamp and includes a surface (34) adjacent to the cable (3) to reflect light incident on its surface, which is a diffuse reflector. A clip (4) retains the cable (3) on the support (11). The clamp (2) is at least partially opaque and shields an end of the cable (3) to simulate a neon tube. The LED light source (14) comprises a housing (12) to which the clamp (2) is coupled, and comprises an LED emitter and a reflector. The clamp (2) is mounted on a substrate (21) and at least one additional sign element mounted to the substrate, such as an LED backlit sign element.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: September 7, 2010
    Assignee: Cooper Technologies Company
    Inventors: Ronald G. Holder, Greg Rhoads
  • Patent number: 7778815
    Abstract: A computer system simulation method starts with algorithmically implementing a specification model independently of hardware architecture. High level functional blocks representing hardware components are connected together using a bus architecture-independent generic channel. The bus architecture-independent generic channel is annotated with timing and protocol details to define an interface between the bus architecture-independent generic channel and functional blocks representing hardware components. The interface is refined to obtain a CCATB for communication space. The read( ) and write( ) interface calls are decomposed into several method calls which correspond to bus pins to obtain observable cycle accuracy for system debugging and validation and to obtain a cycle accurate model.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: August 17, 2010
    Assignee: The Regents of the University of California
    Inventors: Sudeep Pasricha, Nikil Dutt, Mohamed Ben-Romdhane
  • Patent number: 7748872
    Abstract: An apparatus comprises a light source, preferably an LED, a reflector, a light-conducting element mounted on the light source for directing light from the light source to an end of the light-conducting element, and a lens mounted on the end of the light-conducting element for directing light into a central beam. Light from the light source is directed to the reflector into a peripheral beam. The central and peripheral beams comprise substantially all of the light generated by the light source. The lens is in effect mounted on a pedestal above the LED. The pedestal transmits all the light rays in the central solid angle to the lens without loss.
    Type: Grant
    Filed: July 12, 2006
    Date of Patent: July 6, 2010
    Assignee: Cooper Technologies Company
    Inventors: Ronald G. Holder, Greg Rhoads
  • Patent number: 7729750
    Abstract: An improvement in a method for quantitative modulated imaging to perform depth sectioned reflectance or transmission imaging in a turbid medium, such as human or animal tissue is directed to the steps of encoding periodic pattern of illumination preferably with a fluorescent excitation wavelength when exposing a turbid medium to the periodic pattern to provide depth-resolved discrimination of structures within the turbid medium; and reconstructing a non-contact three dimensional image of the structure within a turbid medium. As a result, wide field imaging, separation of the average background optical properties from the heterogeneity components from a single image, separation of superficial features from deep features based on selection of spatial frequency of illumination, or qualitative and quantitative structure, function and composition information is extracted from spatially encoded data.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: June 1, 2010
    Assignee: The Regents of the University of California
    Inventors: Bruce J. Tromberg, Anthony J. Durkin, David Cuccia, Frederic Bevilacqua
  • Patent number: 7694531
    Abstract: A method for forming microspheres on a microscopic level comprises the steps of defining holes through a substrate, disposing a sheet of thermally formable material onto the substrate covering the holes, heating the sheet of thermally formable material until a predetermined degree of plasticity is achieved, applying fluidic pressure through the holes to the sheet of thermally formable material, while the sheet of glass is still plastic, and forming microspheres on the substrate in the sheet of thermally formable material by means of continued application of pressure for a predetermined time. The invention also includes a substrate having a plurality of holes defined therethrough, a layer of thermally formable material disposed onto the substrate covering the plurality of holes, and a plurality of microspheres thermally formed in the layer by means of applied pressure through the holes when it has been heated to a predetermined degree of plasticity.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: April 13, 2010
    Assignee: The Regents of the University of California
    Inventors: E. Jesper Eklund, Andrei M. Shkel
  • Patent number: 7678062
    Abstract: Parametric characterization of nitric oxide (NO) gas exchange using a two-compartment model of the lungs is a non-invasive technique to characterize inflammatory lung diseases. The technique applies the two-compartment model to parametric characterization of NO gas exchange from a tidal breathing pattern. The model is used to estimate up to six flow-independent parameters, and to study alternate breathing patterns.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: March 16, 2010
    Assignee: The Regents of the University of California
    Inventors: Steven C. George, Peter Condorelli
  • Patent number: 7674018
    Abstract: An apparatus and method is characterized by providing an optical transfer function between a predetermined illuminated surface pattern, such as a street light pattern, and a predetermined energy distribution pattern of a light source, such as that from an LED. A lens is formed having a shape defined by the optical transfer function. The optical transfer function is derived by generating an energy distribution pattern using the predetermined energy distribution pattern of the light source. Then the projection of the energy distribution pattern onto the illuminated surface is generated. The projection is then compared to the predetermined illuminated surface pattern to determine if it acceptably matches. The process continues reiteratively until an acceptable match is achieved.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: March 9, 2010
    Inventors: Ronald G. Holder, Greg Rhoads