Patents Represented by Attorney Stephen C. Shear
  • Patent number: 6835949
    Abstract: An assembly includes a device for receiving at least one input to produce an output. An antenna supports the device to transfer the input to the device and further to transfer the output from the device such that the antenna supports a selected one of the input and the output as a high frequency current. The antenna includes a peripheral configuration which confines high frequency current to at least one dominant path to oscillate therein. The other one of the input and the output is a lower frequency signal present at least generally throughout the antenna. At least one port is positioned away from the dominant path to isolate the lower frequency signal from high frequency current in the dominant path. The antenna is configured to support the lower frequency signal having a frequency in a low frequency range including zero to several terahertz.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: December 28, 2004
    Assignee: The Regents of the University of Colorado
    Inventors: Manoja D. Weiss, Blake J. Eliasson, Garret Moddel
  • Patent number: 6762071
    Abstract: A method for fabricating an electron tunneling device on a substrate includes forming a first non-insulating layer on the substrate and providing a first amorphous layer. The method further includes the steps of providing a second layer, and forming a second non-insulating layer and providing an antenna structure connected with the first and second non-insulating layers. The second layer of material is configured to cooperate with the first amorphous layer such that the first amorphous layer and the second layer of material together serve as a transport of electrons between and to the first and second non-insulating layers, and the transport of electrons includes, at least in part, transport by means of tunneling.
    Type: Grant
    Filed: January 20, 2003
    Date of Patent: July 13, 2004
    Assignee: The Regents of the University of Colorado
    Inventors: Blake J. Eliasson, Garret Moddel
  • Patent number: 6756649
    Abstract: A modulator includes a voltage source, a first arrangement including first and second non-insulating layers configured such that a modulation voltage from the voltage source can be applied there across, and a second arrangement between the first and second non-insulating layers. The second arrangement includes a first amorphous layer configured such that a transport of electrons between the first and second non-insulating layers includes tunneling. The first arrangement further includes an antenna structure for absorbing part of an input radiation, while a remainder of the input radiation is reflected. The second arrangement cooperates with the first arrangement such that the antenna exhibits a first absorptivity, when a first modulation voltage is applied to the first arrangement, and exhibits a distinct, second absorptivity, when a second modulation voltage is applied, thereby causing the antenna to reflect a different amount of input radiation to an output as modulated radiation.
    Type: Grant
    Filed: January 20, 2003
    Date of Patent: June 29, 2004
    Assignee: The Regents of the University of Colorado
    Inventors: Garret Moddel, Blake J. Eliasson
  • Patent number: 6664562
    Abstract: An assembly includes a device for receiving at least one input to produce an output. An antenna arrangement supports the device to transfer the input to the device and further to transfer the output from the device such that the antenna arrangement supports a selected one of the input and the output as a high frequency current. The antenna includes a peripheral configuration which confines high frequency current to at least one dominant path to oscillate in the dominant path and the other one of the input and the output is a lower frequency signal present at least generally throughout the antenna arrangement. At least one port is positioned sufficiently away from the dominant path to isolate the lower frequency signal from surface current in the dominant path. The assembly is usable in modulation, emitting, mixing and detection modes and may include a resonant or non-resonant configuration.
    Type: Grant
    Filed: October 5, 2002
    Date of Patent: December 16, 2003
    Assignee: The Regents of the University of Colorado
    Inventors: Manoja D. Weiss, Blake J. Eliasson, Garret Moddel
  • Patent number: 6615965
    Abstract: A planar type of over-running clutch including first and second confronting plates is disclosed herein. The second plate itself includes movable struts and associated biasing mechanisms for cooperative engagement with cooperating shoulder members of the first plate under certain circumstances. An arrangement forming part of the second plate and part of each strut cooperates with the biasing mechanism of the second plate for preventing any contact between the struts and the first plate when the second plate rotates in a particular way.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: September 9, 2003
    Assignee: EPX, L.P.
    Inventors: Frank A. Fitz, Wayne K. Higashi, Paul B Pires
  • Patent number: 6563185
    Abstract: A detector for detecting electromagnetic radiation incident thereon over a desired range of frequencies exhibits a given responsivity and includes an output and first and second non-insulating layers, which layers are spaced apart such that a given voltage can be applied thereacross. The first non-insulating layer is formed of a metal, and the first and second non-insulating layers are configured to form an antenna structure for receiving electromagnetic radiation over the desired range of frequencies. The detector further includes an arrangement disposed between the first and second non-insulating layers and configured to serve as a transport of electrons between the first and second non-insulating layers as a result of the electromagnetic radiation being received at the antenna structure.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: May 13, 2003
    Assignee: The Regents of the University of Colorado
    Inventors: Garrett Moddel, Blake J. Eliasson
  • Patent number: 6534784
    Abstract: The electron tunneling device includes first and second non-insulating layers spaced apart such that a given voltage can be provided therebetween. The device also includes an arrangement disposed between the non-insulating layers and configured to serve as a transport of electrons between the non-insulating layers. This arrangement includes a first layer of an amorphous material such that using only the first layer of amorphous material in the arrangement would result in a given value of a parameter in the transport of electrons, with respect to the given voltage. The arrangement further includes a second layer of material, which is configured to cooperate with the first layer of amorphous material such that the transport of electrons includes, at least in part, transport by tunneling, and such that the parameter, with respect to the given voltage, is increased above the given value of the parameter.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: March 18, 2003
    Assignee: The Regents of the University of Colorado
    Inventors: Blake J. Eliasson, Garret Moddel
  • Patent number: 6259233
    Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as to form the overall amorphous metal magnetic core. The device further includes a control arrangement that is able to variably control the activation and deactivation of the electromagnet using any combination of a plurality of activation and deactivation parameters in order to control the speed, efficiency, torque, and power of the device.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: July 10, 2001
    Assignee: Light Engineering Corporation
    Inventor: Ramon A. CaamaƱo
  • Patent number: 6250402
    Abstract: Specific apparatus and associated methods are described for use in establishing the positions of locating field detectors and for path mapping within a region for the purpose of tracking and/or guiding the movement of an underground boring tool. In one aspect, an improvement is provided forming part of an arrangement for tracking the position and/or guiding the boring tool using an electromagnetic locating signal which is transmitted from the boring tool as the boring tool moves through the ground. At least two detectors are located at fixed positions within the region, each being operable in a transmit mode and in a receive mode such that each one of the detectors in the transmit mode is able to transmit a relative locating signal to the other detector for use in determining the relative position of one detector in relation to the other and such that both detectors receive the electromagnetic locating signal in the receive mode for use in determining the position of the boring tool within the region.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: June 26, 2001
    Assignee: Digital Control Incorporated
    Inventors: Guenter W. Brune, Peter H. Hambling, John E. Mercer, Lloyd A. Moore, Shiu S. Ng, Rudolf Zeller
  • Patent number: 6244669
    Abstract: In the wheel structure according to the invention, at least one and preferably several profile elements (2.1) are used for the transmission of forces between hub (1) and rim (3). The parts (1.2, 1.3) are combined or combinable into an intrinsically stiff structure. The structure is particularly suitable for car wheels.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: June 12, 2001
    Assignee: Kohl Wheels, LLC
    Inventor: Hans Georg Braunschweiler
  • Patent number: 6247037
    Abstract: An optical correlator includes a compound electro-optical component having a first and a second reflective spatial light modulator for forming electro-optical patterns of light. Each spatial light modulator has a reflective backplane with the reflective backplanes of the spatial light modulators being substantially coplanar. The spatial light modulators having their individual respective backplanes formed as two separate portions of a single integrated circuit die. The optical correlator may also include an imager for imaging the output of the optical correlator that is substantially coplanar with the spatial light modulators. The compound electro-optical component may include at least a part of the imager that is formed as a separate portion of the single integrated circuit die that contains the backplanes of the two spatial light modulators.
    Type: Grant
    Filed: January 28, 1999
    Date of Patent: June 12, 2001
    Assignee: Displaytech, Inc
    Inventor: Michael J. O'Callaghan
  • Patent number: 6241997
    Abstract: A chewable calcium composition and its associated method of manufacturing are disclosed. The chewable composition includes a lipid base and a micronized calcium salt substantially uniformly mixed with the lipid base such that the lipid base forms a continuous phase. The composition provides for a relatively large dose of calcium in a easy to take chocolate like, chewable form. The composition of the present invention is manufactured by providing the lipid base including a melting temperature. The lipid base is then heated to a temperature of approximately 120° F. such that the lipid base melts. After the lipid base melts, the micronized calcium salt is mixed with the lipid base to form a melted mixture such that the micronized calcium salt is substantially uniformly distributed in the melted lipid base.
    Type: Grant
    Filed: March 16, 1998
    Date of Patent: June 5, 2001
    Assignee: SMTM Group. LLC
    Inventors: Alvin Kershman, Jeff Lynn Shear, Ronald David Mogel
  • Patent number: 6232780
    Abstract: The present invention provides a locator/monitor capable of locating a boring tool and monitoring the progress of the tool for control purposes. The locator/monitor may be used in expedited locating methodology and straightforward calibration techniques of the present invention. A durable and cost effective pitch sensor is also provided by the present invention. In addition, the present invention provides a slotted transmitter housing formed of an electrically conductive material, where the magnetic field generated by the transmitter is capable of penetrating to the surface.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: May 15, 2001
    Assignee: Digital Control Incorporated
    Inventor: John E. Mercer
  • Patent number: 6204560
    Abstract: As will be described in more detail hereinafter, there is disclosed herein a titanium nitride diffusion barrier layer and associated method for use in non-silicon semiconductor technologies. In one aspect of the invention, a semiconductor device includes a non-silicon active surface. The improvement comprises an ohmic contact serving to form an external electrical connection to the non-silicon active surface in which the ohmic contact includes at least one layer consisting essentially of titanium nitride. In another aspect of the invention, a semiconductor ridge waveguide laser is disclosed which includes a semiconductor substrate and an active layer disposed on the substrate. A cladding layer is supported partially on the substrate and partially on the active layer. The cladding layer includes a ridge portion disposed in a confronting relationship with the active region.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: March 20, 2001
    Assignee: Uniphase Laser Enterprise AG
    Inventors: Andreas Daetwyler, Urs Deutsch, Christoph Harder, Wilhelm Heuberger, Eberhard Latta, Abram Jakubowicz, Albertus Oosenbrug, William Patrick, Peter Roentgen, Erica Williams
  • Patent number: 6191585
    Abstract: A boring tool is moved through the ground in a region which includes at least one electrically conductive in-ground line and which is subject to static magnetic fields including the magnetic field of the earth.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: February 20, 2001
    Assignee: Digital Control, Inc.
    Inventors: John E. Mercer, Albert W. Chau
  • Patent number: 6160401
    Abstract: A system in which a boring tool is moved through the ground within a given region along a particular path in an orientation which includes pitch. A locating signal is transmitted from the boring tool which signal exhibits a field defined forward point within a reference surface which field defined forward point is vertically above an inground forward point on the particular path through which the boring tool is likely to pass. It establishes a predicted depth of the boring tool at the inground forward point by first identifying the field defined forward point with the use of a locator with two antennas. The signal strength of the locating signal is then measured at the field defined forward point as being representative of the depth of the boring tool at an inground upstream point which is the current location of the boring tool. With the boring tool at the upstream inground point, the pitch of the boring tool is determined.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: December 12, 2000
    Assignee: Digital Control Incorporated
    Inventor: John E. Mercer
  • Patent number: 6154472
    Abstract: As will be described in more detail hereinafter, an intracavity doubled single longitudinal mode laser is disclosed which provides stable (i.e., low amplitude variation in its output beam intensity), efficient operation in conjunction with a highly advantageous decoupled alignment configuration. An associated method is also disclosed. A lasant material is positioned in the light path of the laser for producing light at a desired fundamental wavelength and possibly other, unwanted wavelengths. Polarizing means is also positioned in the light path for polarizing the desired fundamental wavelength and the unwanted wavelengths of light.
    Type: Grant
    Filed: September 9, 1998
    Date of Patent: November 28, 2000
    Assignee: JDS Uniphase Corporation
    Inventors: Neil MacKinnon, Ping Xie
  • Patent number: 6154013
    Abstract: A device such as an electric motor, an electric generator, or a regenerative electric motor includes a rotor arrangement and a stator arrangement. The stator arrangement has a dielectric electromagnet housing and at least one energizable electromagnet assembly including an overall amorphous metal magnetic core. The overall amorphous metal magnetic core is made up of a plurality of individually formed amorphous metal core pieces. The dielectric electromagnet housing has core piece openings formed into the electromagnet housing for holding the individually formed amorphous metal core pieces in positions adjacent to one another so as to form the overall amorphous metal magnetic core. The device further includes a control arrangement that is able to variably control the activation and deactivation of the electromagnet using any combination of a plurality of activation and deactivation parameters in order to control the speed, efficiency, torque, and power of the device.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: November 28, 2000
    Assignee: Light Engineering Corporation
    Inventor: Ramon A. Caamano
  • Patent number: 6144421
    Abstract: A reflection mode, ferroelectric liquid crystal spatial light modulating system, includes a light reflecting type spatial light modulator. The spatial light modulator has a light reflecting surface cooperating with a layer of ferroelectric liquid crystal light modulating medium switchable between first and second states so as to act on light in different first and second ways, respectively. A switching arrangement switches the liquid crystal light modulating medium between the first and second states and an illumination arrangement produces a source of light. An optics arrangement is optically coupled the spatial light modulator and the illumination arrangement such that light is directed from the source of light into the spatial light modulator for reflection back out of the modulator and such that reflected light is directed from the spatial light modulator into a predetermined viewing area.
    Type: Grant
    Filed: February 19, 2000
    Date of Patent: November 7, 2000
    Assignee: Displaytech, Inc.
    Inventor: Charles M. Crandall
  • Patent number: 6135951
    Abstract: A personal fitness monitoring device and a method for assessing the fitness of an individual as the individual exercises includes using a pedometer to determine and output data representing the locomotion of the individual. A heart rate monitor determines and outputs data representing the heart rate of the individual. A determination arrangement calculates the fitness of the individual as the individual exercises using personal data provided by the individual in combination with the data outputs of the pedometer and the heart rate without requiring a predetermined exercise regime. In one embodiment, the pedometer calculates a distance traveled by the individual using personal data provided by the individual. The personal fitness monitoring device may further include a user interface for communicating with the user. The user interface uses a single user controlled selecting mechanism to select a desired one of various user selectable options.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: October 24, 2000
    Assignee: Living Systems, Inc.
    Inventors: J. Jeffrey Richardson, Ted D. Wade