Patents by Inventor David M.S. Johnson

David M.S. 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: 20200086498
    Abstract: In an embodiment, a method during execution of a motion plan by a robotic arm includes determining a voice command from speech of a user said during the execution of the motion plan, determining a modification of the motion plan based on the voice command from the speech of the user, and executing the modification of the motion plan by the robotic arm.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 19, 2020
    Inventors: David M.S. Johnson, Syler Wagner, Anthony Tayoun, Steven Lines
  • Publication number: 20200086502
    Abstract: Robots, including robot arms, can interface with other modules to affect the world surrounding the robot. However, designing modules from scratch when human analogues exist is not efficient. In an embodiment, a mechanical tool, converted from human use, to be used by robots includes a monolithic adaptor having two interface components. The two interface components include a first interface component cabal be of mating with an actuated mechanism on the robot side, the second interface capable of clamping to an existing utensil. In such a way, utensils that are intended for humans can be adapted for robots and robotic arms.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 19, 2020
    Inventors: David M.S. Johnson, Justin Rooney, Syler Wagner, Steven Lines, Cody Chu, Anthony Tayoun
  • Publication number: 20200086497
    Abstract: Embodiments provide methods and systems to modify motion of a robot based on sound and context. An embodiment detects a sound in an environment and processes the sound. The processing includes comparing the detected sound to a library of sound characteristics associated with sound cues and/or extracting features or characteristics from the detected sound using a model. Motion of a robot is modified based on a context of the robot and at least one of: (i) the comparison, (ii) the features extracted from the detected sound, and (iii) the characteristics extracted from the detected sound.
    Type: Application
    Filed: September 13, 2019
    Publication date: March 19, 2020
    Inventors: David M.S. Johnson, Syler Wagner, Anthony Tayoun, Steven Lines
  • Patent number: 10331087
    Abstract: Methods and apparatus that provide for inertial sensing. In one example, a method for inertial sensing includes trapping and cooling a cloud of atoms, applying a first beam splitter pulse sequence to the cloud of atoms, applying one or more augmentation pulses to the cloud of atoms subsequent to applying the first beam splitter pulse sequence, applying a mirror sequence to the cloud of atoms, applying a one or more augmentation pulses to the cloud of atoms subsequent to applying the mirror sequence, applying a second beam splitter pulse sequence to the cloud of atoms subsequent to applying the second augmentation pulse, modulating at least one of a phase and an intensity of at least one of the first and the second beam splitter pulse sequences, performing at least one measurement on the cloud of atoms, and generating a control signal based on the at least one measurement.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 25, 2019
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Krish Kotru, Justin M. Brown, David L. Butts, Richard E. Stoner, Jennifer T. Choy, David M. S. Johnson, Nicole Pomeroy, Stephen P. Smith, Nancy Wu
  • Publication number: 20180267479
    Abstract: Methods and apparatus that provide for inertial sensing. In one example, a method for inertial sensing includes trapping and cooling a cloud of atoms, applying a first beam splitter pulse sequence to the cloud of atoms, applying one or more augmentation pulses to the cloud of atoms subsequent to applying the first beam splitter pulse sequence, applying a mirror sequence to the cloud of atoms, applying a one or more augmentation pulses to the cloud of atoms subsequent to applying the mirror sequence, applying a second beam splitter pulse sequence to the cloud of atoms subsequent to applying the second augmentation pulse, modulating at least one of a phase and an intensity of at least one of the first and the second beam splitter pulse sequences, performing at least one measurement on the cloud of atoms, and generating a control signal based on the at least one measurement.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 20, 2018
    Applicant: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: Krish Kotru, Justin M. Brown, David L. Butts, Richard E. Stoner, Jennifer T. Choy, David M.S. Johnson, Nicole Pomeroy, Stephen P. Smith, Nancy Wu
  • Patent number: 9897448
    Abstract: An inertial measurement apparatus based on atom interferometry. In one example, the inertial measurement apparatus includes a vacuum chamber, first and second atom capture sites housed within the vacuum chamber, each of the first and second atom capture sites being selectively configured to trap and cool first and second atom samples of distinct atom species, an atom interferometry region disposed between the first and second atom capture sites, and first and second atom interferometers operating in the atom interferometry region, the first atom interferometer being configured to generate a first measurement corresponding to a common inertial input based on the first atom sample, and the second atom interferometer being configured to generate a second measurement corresponding to the same common inertial input based on the second atom sample.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: February 20, 2018
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: David M. S. Johnson, David L. Butts, Richard E. Stoner, Tom Thorvaldsen
  • Publication number: 20170299389
    Abstract: An inertial measurement apparatus based on atom interferometry. In one example, the inertial measurement apparatus includes a vacuum chamber, first and second atom capture sites housed within the vacuum chamber, each of the first and second atom capture sites being selectively configured to trap and cool first and second atom samples of distinct atom species, an atom interferometry region disposed between the first and second atom capture sites, and first and second atom interferometers operating in the atom interferometry region, the first atom interferometer being configured to generate a first measurement corresponding to a common inertial input based on the first atom sample, and the second atom interferometer being configured to generate a second measurement corresponding to the same common inertial input based on the second atom sample.
    Type: Application
    Filed: October 21, 2015
    Publication date: October 19, 2017
    Inventors: David M.S. Johnson, David L. Butts, Richard E. Stoner, Tom Thorvaldsen
  • Patent number: 9568316
    Abstract: Compact inertial measurement systems and methods based on atom interferometry. Certain examples provide a combination atomic accelerometer-gyroscope configured to recapture and cycle atom samples through atom interferometers arranged to allow the next measurement to use the atoms from the previous measurement. Examples of the apparatus provide inertial measurements indicative of rotation for different inertial axes by applying atom interferometry to a plurality of atom samples launched in opposite directions to allow for measurement of both acceleration and rotation rates. In some examples, the inertial measurement apparatus provide a combined atomic gyroscope and an atomic accelerometer in a compact six Degrees of Freedom (6 DOF) IMU.
    Type: Grant
    Filed: March 15, 2014
    Date of Patent: February 14, 2017
    Assignee: THE CHARLES STARK DRAPER LABORATORY, INC.
    Inventors: David M. S. Johnson, David L. Butts, Richard E. Stoner
  • Publication number: 20160298967
    Abstract: Compact inertial measurement systems and methods based on atom interferometry. Certain examples provide a combination atomic accelerometer-gyroscope configured to recapture and cycle atom samples through atom interferometers arranged to allow the next measurement to use the atoms from the previous measurement. Examples of the apparatus provide inertial measurements indicative of rotation for different inertial axes by applying atom interferometry to a plurality of atom samples launched in opposite directions to allow for measurement of both acceleration and rotation rates. In some examples, the inertial measurement apparatus provide a combined atomic gyroscope and an atomic accelerometer in a compact six Degrees of Freedom (6 DOF) IMU.
    Type: Application
    Filed: March 15, 2014
    Publication date: October 13, 2016
    Inventors: David M.S. Johnson, David L. Butts, Richard E. Stoner
  • Patent number: 8693893
    Abstract: Optical phase modulators are disposed in separate arms of an optical interferometer for forming short optical pulses. The optical phase modulators are driven by signals from an electrical nonlinear transmission line (NLTL). A time delay (typically on the order of the NLTL fall time) is introduced between the NLTL signals in the two arms of the interferometer. With this arrangement, the interferometer provides short optical pulses at its output. In one experiment, 70 ps switching was demonstrated using discrete LiNbO3 traveling wave electro-optic modulators and commercially available NLTLs capable of delivering a 35 ps falling edge. A preferable approach is to integrate the NLTLs with the phase modulators, to further improve bandwidth. This fast switch can be used for various applications, such as implementing an Optical Time Division Multiplexing (OTDM) network architecture, and providing arbitrary waveform generation (AWG) capability.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 8, 2014
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: David M. S. Johnson, Jason M. Hogan, Sheng-wey Chiow, Mark A. Kasevich
  • Publication number: 20120154894
    Abstract: Optical phase modulators are disposed in separate arms of an optical interferometer for forming short optical pulses. The optical phase modulators are driven by signals from an electrical nonlinear transmission line (NLTL). A time delay (typically on the order of the NLTL fall time) is introduced between the NLTL signals in the two arms of the interferometer. With this arrangement, the interferometer provides short optical pulses at its output. In one experiment, 70 ps switching was demonstrated using discrete LiNbO3 traveling wave electro-optic modulators and commercially available NLTLs capable of delivering a 35 ps falling edge. A preferable approach is to integrate the NLTLs with the phase modulators, to further improve bandwidth. This fast switch can be used for various applications, such as implementing an Optical Time Division Multiplexing (OTDM) network architecture, and providing arbitrary waveform generation (AWG) capability.
    Type: Application
    Filed: November 10, 2011
    Publication date: June 21, 2012
    Inventors: David M.S. Johnson, Jason M. Hogan, Sheng-wey Chiow, Mark A. Kasevich