Patents by Inventor Keith O. Johnson

Keith O. Johnson 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: 20240118792
    Abstract: A method for configuring a system having a wearable optical unit is disclosed. The method includes powering on the system, and in response to the system being powered on, using one or more processors to control the system to: determine whether to cause the system to run a configuration workflow, and in response to determining to cause the system to run the configuration workflow, (a) control the system in connection with configuring an interpupillary distance (IPD) for a user of the system, (b) determine whether the IPD is configured for the user, and (c) in response to determining that the IPD is configured for the user, control the system in connection with configuring a focus of the optical unit.
    Type: Application
    Filed: October 11, 2022
    Publication date: April 11, 2024
    Inventors: Trae Benjamin Stephens, Benjamin Eli Nelson Chelf, Nicholas Cory Johnson, John Aaron Boiles, Nicholas Grant Lewis, Kevin Robert McKinney, Steven David Oliver, Tun Yuen Yeung, Meghan Easley, Robin Porter, Jeremiah O'Leary, Keith Alsberg, Robert Samuel Clay
  • Patent number: 11927751
    Abstract: The present application discloses a system and device for displaying content. The system includes two optical units. The two optical units are part of the system that is wearable. Each of the two optical units comprises a front lit display. The system includes an adjustable mounting. The adjustable mounting enables a user to adjust a mounting position of the two optical units.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: March 12, 2024
    Assignee: Sindarin, Inc.
    Inventors: Benjamin Eli Nelson Chelf, John Aaron Boiles, Nicholas Cory Johnson, Kevin Robert McKinney, Steven David Oliver, Tun Yuen Yeung, Keith Alsberg, Jeremiah O'Leary
  • Patent number: 7184556
    Abstract: A sound compensation system alters an electrical audio signal for input to a sonic reproduction device having associated behavioral characteristics. The behavior characteristics of the device are defined by individual or groups of individual components of the sonic reproduction device and include mechanical, acoustic and electromagnetic behaviors. The model includes a plurality of filters that simulate at least one of the behavior characteristics of the sonic reproduction device. The filters are defined by digital signal processes or by analog circuits and are characterized by one or more of an associated frequency, time, phase and transient response. These responses combine to define an overall response for the model. The filters include adjustable parameters which are used to alter filter responses to produce responses that are conjugates to the responses of the unaltered filters and thus the sonic reproduction device. A controller modifies the parameters.
    Type: Grant
    Filed: August 11, 2000
    Date of Patent: February 27, 2007
    Assignee: Microsoft Corporation
    Inventors: Keith O. Johnson, Alex Limberis, Mats Myrberg, Timothy E. Onders
  • Patent number: 6823526
    Abstract: A system for connecting an external device and a host system includes an input/output code element on a host system linked with the external device. The input/output code element generates a device identification string. The device identification string includes an optional feature component associated with the external device. The optional feature component indicates at least one extra feature that is included with a particular external device, such as an envelope feeder for a printer or an audio component for a wireless Internet appliance. The system further includes an installer linked with the host system. The installer receives the device identification string and parses the string for the optional feature component. The installer creates an add-on identifier key in the host system's registry based on the optional feature component.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: November 23, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Dennis Wayne Howard, Brent Jay Blazek, Dean R. VandeWater, Keith O. Johnson
  • Publication number: 20040002781
    Abstract: Methods and apparatuses are provided for correcting or otherwise modifying audio signals based on a variety of parameters. One apparatus includes parameter selecting logic that determines one or more audio signal parameter settings, and rule book logic that determines if the audio signal parameter settings are allowable for the audio reproduction system configuration and then establishes an appropriate parameter code. The apparatus further includes correction logic that receives or accesses an audio data signal and based on the parameter code applies audio signal parameter settings to at least a portion of the audio data signal to modify the audio data signal.
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Inventor: Keith O. Johnson
  • Publication number: 20030009604
    Abstract: A system for connecting an external device and a host system includes an input/output code element on a host system linked with the external device. The input/output code element generates a device identification string. The device identification string includes an optional feature component associated with the external device. The optional feature component indicates at least one extra feature that is included with a particular external device, such as an envelope feeder for a printer or an audio component for a wireless Internet appliance. The system further includes an installer linked with the host system. The installer receives the device identification string and parses the string for the optional feature component. The installer creates an add-on identifier key in the host system's registry based on the optional feature component.
    Type: Application
    Filed: July 5, 2001
    Publication date: January 9, 2003
    Inventors: Dennis Wayne Howard, Brent Jay Blazek, Dean R. VandeWater, Keith O. Johnson, Ernest Lee Johnson, Richard A. Wiltbank
  • Patent number: 5872531
    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: February 16, 1999
    Assignee: Pacific Microsonics, Inc.
    Inventors: Keith O. Johnson, Michael W. Pflaumer
  • 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: 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: 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: 5479168
    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 20, 1993
    Date of Patent: December 26, 1995
    Assignee: Pacific Microsonics, Inc.
    Inventors: Keith O. Johnson, Michael W. Pflaumer
  • Patent number: 5014713
    Abstract: A body fat thickness measuring device comprising a pair of infrared emitting diodes, one emitting a steady, low-intensity light, and the other emitting periodic, high-intensity pulses of light, to be placed against the skin where the fat is to be measured. The device contains an array of detectors in the form of infrared-sensitive photo-transistors which are placed against the skin in predetermined locations near the two diodes, yet shielded from ambient light. The detector array provides signals proportional to the amount of infrared light detected, and these signals are summed and amplified, forming a composite signal. The amplitude of this composite signal, which is indicative of the thickness of the layer of fat, is displayed on a digital readout device.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: May 14, 1991
    Assignee: Tarris Enterprises, Inc.
    Inventors: Alan Roper, Keith O. Johnson
  • Patent number: 4124784
    Abstract: A system for detecting and reproducing variable-area-type optically recorded audio signals by cyclically detecting substantially only the position of a boundary of the sound track. In one embodiment, the boundary is detected by imaging the boundary onto an array of photosensors and scanning the array to provide an output signal containing a transition corresponding in the time domain to the position of the boundary. The transition signal is filtered and sliced to provide electrical interpolation to improve the resolution substantially over the special resolution of the photosensitive elements of the array. The system may also include a multitrack capability with means for minimizing the effect of film weave.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: November 7, 1978
    Assignee: DBX, Inc.
    Inventors: Keith O. Johnson, David E. Blackmer, John deS. Mosely
  • Patent number: 3975949
    Abstract: Nuclear reactor fuel rod leakage is determined by measurement of vibrational characteristics of a resilient, flexible means sealed within the upper end caps of the fuel elements. The flexible means, which is preferably a metallic diaphragm, is set into motion and the vibration measurements are made by a special tool which fits over the end cap of the fuel element to be tested.
    Type: Grant
    Filed: January 10, 1974
    Date of Patent: August 24, 1976
    Assignee: Exxon Nuclear Company, Inc.
    Inventors: Keith O. Johnson, Fredrick M. Coffman
  • Patent number: 3967382
    Abstract: A system for the measurement of the length of the plenum chamber in a nuclear fuel rod, both before and after service in the nuclear reactor. The system basically comprises inserting the fuel rod into a casing having an eddy current sensing coil therein and advancing it until the coil output provides a signal indicative of the end of the plenum spring being centrally located within the coil. At an end of the casing is provided a plenum chamber length transducer of the displacement type, such as a linear variable differential transformer, which contacts the adjacent end cap of the fuel rod and when the coil provides an appropriate readout corresponding to proper location of the plenum spring end produces an output signal which is indicative of the length of the plenum chamber.
    Type: Grant
    Filed: January 10, 1975
    Date of Patent: July 6, 1976
    Assignee: Exxon Nuclear Company, Inc.
    Inventors: Keith O. Johnson, Fredrick M. Coffman