Patents by Inventor Keith O'Connor

Keith O'Connor 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).

  • Patent number: 5864311
    Abstract: An electronic method and apparatus for signal encoding and decoding to provide ultra low distortion reproduction of analog signals, while remaining compatible with industry standardized signal playback apparatus not incorporating the decoding features of the invention, and wherein the improved system provides an interplay of gain, slew rate and wave synthesis operations to reduce signal distortions and improve apparent resolution, all under the control of concealed control codes for triggering appropriate decoding signal reconstruction compensation complementing the signal analysis made during encoding. In addition, signals lacking the encoding process features of the invention are likewise compatible with playback decoders which do embody the invention, to provide some overall restoration enhancement.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: January 26, 1999
    Assignee: Pacific Microsonics, Inc.
    Inventors: Keith O. Johnson, Michael W. Pflaumer
  • Patent number: 5854600
    Abstract: An electronic method and apparatus for signal encoding and decoding to provide ultra low distortion reproduction of analog signals, while remaining compatible with industry standardized signal playback apparatus not incorporating the decoding features of the invention, and wherein the improved system provides an interplay of gain, slew rate and wave synthesis operations to reduce signal distortions and improve apparent resolution, all under the control of concealed control codes for triggering appropriate decoding signal reconstruction compensation complementing the signal analysis made during encoding. In addition, signals lacking the encoding process features of the invention are likewise compatible with playback decoders which do embody the invention, to provide some overall restoration enhancement.
    Type: Grant
    Filed: August 29, 1997
    Date of Patent: December 29, 1998
    Assignee: Pacific Microsonics, Inc.
    Inventors: Keith O. Johnson, Michael W. Pflaumer
  • Patent number: 5849209
    Abstract: The present invention is directed to a composition of polystyrene or polypropylene with at least 0.5% (w/w)of an additive or wetting agent, the article of manufacture comprised thereof, such as a mold for making contact lenses and the mold assembly containing said mold, and the use of such mold so to minimize defects, such as holes, puddles, chips and tears in the lens.
    Type: Grant
    Filed: September 29, 1995
    Date of Patent: December 15, 1998
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Ture Kindt-Larsen, Jeffrey Longo, Keith O'Brien, James Jen, Michael Widman, Mehmet Burduroglu, Robert LaBelle
  • Patent number: 5850042
    Abstract: An accelerometer is fabricated by forming a proofmass and at least one associated hinge in a silicon substrate by ion implantation and the formation of an oxide support layer below the proofmass, subsequently integrally bonding two complementary proofmass and substrate structures together, and then removing the oxide support layer to leave the proofmass supported by the hinge within the body of silicon material. The proofmass may be electrically connected to a lead extending through an etched recess in one of the substrates; and the proofmass may be electrically isolated or separated from the substrates by an oxide layer and by a change in conductivity type of the semiconductor material where the hinge is structurally mounted to the substrates.
    Type: Grant
    Filed: December 8, 1995
    Date of Patent: December 15, 1998
    Assignee: Litton Systems, Inc.
    Inventor: Keith O. Warren
  • Patent number: 5840199
    Abstract: An accelerometer is fabricated by forming a proofmass and at least one associated hinge in a silicon substrate through a variety of a etching and bonding processes is disclosed. The processes entail ion implantation and formation of an oxide support layer below the proofmass, integrally bonding two complementary proofmass and substrate structures together, and then removing the oxide support layer to leave the proofmass supported by the hinge within the body of silicon material. The proofmass may be electrically connected to a lead extending through an etched recess in one of the substrates, and the proofmass may be electrically isolated or separated from the substrates by an oxide layer and by a change in conductivity type of the semiconductor material wherein the hinge is structurally mounted to the substrates. In a bond and etch back process, the wafer is processed, sawed in half, and then bonded together again wherein the complementary halves are joined to obtain the finished accelerometer.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: November 24, 1998
    Assignee: Litton Systems, Inc.
    Inventor: Keith O. Warren
  • Patent number: 5838274
    Abstract: An electronic method and apparatus for signal encoding and decoding to provide ultra low distortion reproduction of analog signals, while remaining compatible with industry standardized signal playback apparatus not incorporating the decoding features of the invention, and wherein the improved system provides an interplay of gain, slew rate and wave synthesis operations to reduce signal distortions and improve apparent resolution, all under the control of concealed control codes for triggering appropriate decoding signal reconstruction compensation complementing the signal analysis made during encoding. In addition, signals lacking the encoding process features of the invention are likewise compatible with playback decoders which do embody the invention, to provide some overall restoration enhancement.
    Type: Grant
    Filed: January 13, 1997
    Date of Patent: November 17, 1998
    Assignee: Pacific Microsonics, Inc.
    Inventors: Keith O. Johnson, Michael W. Pflaumer
  • Patent number: 5808574
    Abstract: An electronic method and apparatus for signal encoding and decoding to provide ultra low distortion reproduction of analog signals, while remaining compatible with industry standardized signal playback apparatus not incorporating the decoding features of the invention, and wherein the improved system provides an interplay of gain, slew rate and wave synthesis operations to reduce signal distortions and improve apparent resolution, all under the control of concealed control codes for triggering appropriate decoding signal reconstruction compensation complementing the signal analysis made during encoding. In addition, signals lacking the encoding process features of the invention are likewise compatible with playback decoders which do embody the invention, to provide some overall restoration enhancement.
    Type: Grant
    Filed: February 11, 1997
    Date of Patent: September 15, 1998
    Assignee: Pacific Microsonics, Inc.
    Inventors: Keith O. Johnson, Michael W. Pflaumer
  • Patent number: 5782454
    Abstract: An electromagnetically actuator is disclosed having an electromagnet, a core element, the core element having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second stop position proximal from the electromagnet when the electromagnet is on, a first resilient member adapted to bias said core element in the normally biased first position, and a second resilient member adapted to bias the electromagnet away from the core. The first resilient member is more resilient than the second resilient member. Therefore, the core approaches the electromagnet when the electromagnet is on until the core reaches the fixed stop position, and the electromagnet subsequently approaches the core to the fixed stop position. The actuator may further include an adjustment member that engages the electromagnet so as to control the pressure of the electromagnet against the second resilient member, whereby the axial position of the electromagnet is controlled.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: July 21, 1998
    Assignee: Aura Systems, Inc.
    Inventors: Dennis C. Bulgatz, Fernando B. Morinigo, Christopher Sortore, Keith O. Stuart
  • Patent number: 5768395
    Abstract: A field coil actuator includes a magnetic flux conductive material case, an electrical current conductive field coil and two electrical current conductive moving coils uniquely arranged. The case has a first surface and a continuous channel disposed in said first surface. The channel has a pair of opposing walls. The field coil is disposed within the channel between the walls so that a gap remains between the walls above the field coil and another gap remains between the walls below the field coil. When a current is induced in the field coil, magnetic flux is developed across the gaps. The flux is confined substantially normal to the walls of the channel. The electrical current conductive moving coils are each disposed moveably in one of the gaps such that an electrical current in the coil develops a Lorentz force on each of the coils in a direction substantially normal to the current in the moving coil and the magnetic flux to displace the moving coil in response to the current in the moving coil.
    Type: Grant
    Filed: June 9, 1997
    Date of Patent: June 16, 1998
    Assignee: Aura Systems, Inc.
    Inventors: Keith O. Stuart, Dennis C. Bulgatz
  • Patent number: 5690865
    Abstract: The present invention is directed to a composition comprising polystyrene with at least 0.1% (w/w) of an additive, the article of manufacture thereof, such as a mold for making contact lenses and the mold assembly containing said mold, and the use of such mold so to facilitate demolding from a two mold assembly in the process of making contact lenses.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: November 25, 1997
    Assignee: Johnson & Johnson Vision Products, Inc.
    Inventors: Ture Kindt-Larsen, Jeffery Longo, Keith O'Brien
  • Patent number: 5675830
    Abstract: A method and system is provided for assigning addresses to input/output (I/O) devices in a control network, and for verifying addresses assigned to the I/O devices. The system comprises a logic controller providing memory into which a connectivity map may be programmed. The connectivity map defines a specific expected address for each I/O device in the system. The logic controller further provides an external controller bus and logic for downloading the connectivity map to an I/O bus manager connected to the logic controller via the external controller bus. The I/O bus manager provides logic for assigning the specific addresses to the I/O devices. Network nodes connect the I/O bus manager to I/O cluster units in the system, each network node including a multiplexer for multiplexing output signals from the I/O bus manager and a demultiplexer for demultiplexing input signals from the I/O cluster units, the multiplexing/demultiplexing functions provided by a controller area network (CAN) integrated circuit.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 7, 1997
    Assignee: Eaton Corporation
    Inventor: Keith O. Satula
  • Patent number: 5644770
    Abstract: A method of coupling rules to a data domain of an object-oriented computer program. During run time, the coupling permits the computer to use rules to directly access user-defined objects for both the matching and the action phases of the inferencing process, Inferencing is implemented with an inference class object and user-defined class object are derived from a working memory element class.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: July 1, 1997
    Assignee: Texas Instruments Incorporated
    Inventors: Fred H. Burke, Keith O. Carlson, Richard C. Roth
  • Patent number: 5640161
    Abstract: An electronic method and apparatus for signal encoding and decoding to provide ultra low distortion reproduction of analog signals, while remaining compatible with industry standardized signal playback apparatus not incorporating the decoding features of the invention, and wherein the improved system provides an interplay of gain, slew rate and wave synthesis operations to reduce signal distortions and improve apparent resolution, all under the control of concealed control codes for triggering appropriate decoding signal reconstruction compensation complementing the signal analysis made during encoding. In addition, signals lacking the encoding process features of the invention are likewise compatible with playback decoders which do embody the invention, to provide some overall restoration enhancement.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: June 17, 1997
    Assignee: Pacific Microsonics, Inc.
    Inventors: Keith O. Johnson, Michael W. Pflaumer
  • Patent number: 5638074
    Abstract: An electronic method and apparatus for signal encoding and decoding to provide ultra low distortion reproduction of analog signals, while remaining compatible with industry standardized signal playback apparatus not incorporating the decoding features of the invention, and wherein the improved system provides an interplay of gain, slew rate and wave synthesis operations to reduce signal distortions and improve apparent resolution, all under the control of concealed control codes for triggering appropriate decoding signal reconstruction compensation complementing the signal analysis made during encoding. In addition, signals lacking the encoding process features of the invention are likewise compatible with playback decoders which do embody the invention, to provide some overall restoration enhancement.
    Type: Grant
    Filed: May 31, 1995
    Date of Patent: June 10, 1997
    Assignee: Pacific Microsonics, Inc.
    Inventor: Keith O. Johnson
  • Patent number: 5623042
    Abstract: A process for reducing trace levels of metallic impurities in cyclized polyisoprene resin is disclosed. The process reduces trace levels of metallic impurities in cyclized polyisoprene resin by washing an impure organic solvent/cyclized polyisoprene resin solution at least once with a heated aqueous acidic solution, and subsequently washing the resin at least once with heated water.
    Type: Grant
    Filed: July 19, 1995
    Date of Patent: April 22, 1997
    Assignee: Olin Corporation
    Inventors: Keith O. Wilbourn, James M. Davidson, Richard W. Roberts
  • Patent number: 5551053
    Abstract: A method and system is provided for assigning addresses to input/output (I/O) devices in a control network, and for verifying addresses assigned to the I/O devices. The system comprises a logic controller providing memory into which a connectivity map may be programmed. The connectivity map defines a specific expected address for each I/O device in the system. The logic controller further provides an external controller bus and logic for downloading the connectivity map to an I/O bus manager connected to the logic controller via the external controller bus. The I/O bus manager provides logic for assigning the specific addresses to the I/O devices. Network nodes connect the I/O bus manager to I/O cluster units in the system, each network node including a multiplexer for multiplexing output signals from the I/O bus manager and a demultiplexer for demultiplexing input signals from the I/O cluster units, the multiplexing/demultiplexing functions provided by a controller area network (CAN) integrated circuit.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: August 27, 1996
    Assignee: Eaton Corporation
    Inventors: Gregory L. Nadolski, Keith O. Satula
  • Patent number: 5548263
    Abstract: An electromagnetically actuator is disclosed having an electromagnet, a core element, the core element having a normally biased initial spaced apart first position distal from the electromagnet when the electromagnet is off and a second stop position proximal from the electromagnet when the electromagnet is on, a first resilient member adapted to bias said core element in the normally biased first position, and a second resilient member adapted to bias the electromagnet away from the core. The first resilient member is more resilient than the second resilient member. Therefore, the core approaches the electromagnet when the electromagnet is on until the core reaches the fixed stop position, and the electromagnet subsequently approaches the core to the fixed stop position. The actuator may further include an adjustment member that engages the electromagnet so as to control the pressure of the electromagnet against the second resilient member, whereby the axial position of the electromagnet is controlled.
    Type: Grant
    Filed: June 28, 1993
    Date of Patent: August 20, 1996
    Assignee: Aura Systems, Inc.
    Inventors: Dennis C. Bulgatz, Fernando B. Morinigo, Christopher Sortore, Keith O. Stuart
  • Patent number: 5536984
    Abstract: A voice coil actuator includes a magnetic flux conductive material core, a magnet and an electrical current conductive coil. The core has a first surface and a continuous channel disposed in said first surface. The channel has a pair of opposing walls. The magnet is disposed in intimate contact with a first one of said walls and spaced from a second one of said walls so that a gap remains between the magnet and the second one of the walls. The magnet has a first face of a first magnetic polarity facing the first one of the walls and a second face of a second, opposite magnetic polarity facing the gap. The magnet is further spaced from a bottom of the channel so that magnetic flux is substantially normal from the second face across said gap to the second one of the walls.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 16, 1996
    Assignee: Aura Systems, Inc.
    Inventors: Keith O. Stuart, Dennis C. Bulgatz
  • Patent number: 5503285
    Abstract: An accelerometer is fabricated by forming a proofmass and at least one associated hinge in a silicon substrate by ion implantation and the formation of an oxide support layer below the proofmass, subsequently integrally bonding two complementary proofmass and substrate structures together, and then removing the oxide support layer to leave the proofmass supported by the hinge within the body of silicon material. The proofmass may be electrically connected to a lead extending through an etched recess in one of the substrates; and the proofmass may be electrically isolated or separated from the substrates by an oxide layer and by a change in conductivity type of the semiconductor material where the hinge is structurally mounted to the substrates.
    Type: Grant
    Filed: July 26, 1993
    Date of Patent: April 2, 1996
    Assignee: Litton Systems, Inc.
    Inventor: Keith O. Warren
  • Patent number: 5497660
    Abstract: A digital force balanced instrument such as an accelerometer that incorporates a directly digital electrostatic forcer with servo loop plates charged by a digital feedback loop is disclosed. The accelerometer has a proofmass electrode suspended in a cantilever configuration between electrodes on either side thereof, which proofmass is displaced upon acceleration. Each side electrode includes a plurality of electrostatic plates sized in binarily weighted multiples of area. An induced signal in the proofmass electrode is quantized via A/D converter in the feedback loop, which activates the appropriate number of plates to force the proofmass to an initial position.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: March 12, 1996
    Assignee: Litton Systems, Inc.
    Inventor: Keith O. Warren