Patents by Inventor David Amm

David Amm 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: 10359884
    Abstract: Ground detection of a touch sensitive device is disclosed. The device can detect its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device determines that it is well grounded.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: July 23, 2019
    Assignee: Apple Inc.
    Inventors: Steven P. Hotelling, David Amm, Michael Lammers, John T. Orchard, Brian Michael King, Omar S. Leung, Deniz Teoman
  • Patent number: 10289235
    Abstract: Touch and hover switching is disclosed. A touch and hover sensing device can switch between a touch mode and a hover mode. During a touch mode, the device can be switched to sense one or more objects touching the device. During a hover mode, the device can be switched to sense one or more objects hovering over the device. The device can include a panel having multiple sensors for sensing a touching object and/or a hovering object and a touch and hover control system for switching the device between the touch and hover modes. The device's touch and hover control system can include a touch sensing circuit for coupling to the sensors to measure a capacitance indicative of a touching object during the touch mode, a hover sensing circuit for coupling to the sensors to measure a capacitance indicative of a hovering object during the hover mode, and a switching mechanism for switching the sensors to couple to either the touch sensing circuit or the hover sensing circuit.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: May 14, 2019
    Assignee: Apple Inc.
    Inventors: Brian Michael King, Omar S. Leung, Paul G. Puskarich, Jeffrey Traer Bernstein, Andrea Mucignat, Avi E. Cieplinski, Muhammad U. Choudry, Praveen R. Subramani, Marc J. Piche, David Amm, Duncan Robert Kerr
  • Patent number: 10198108
    Abstract: Detecting a signal from a touch and hover sensing device, in which the signal can be indicative of concurrent touch events and/or hover events, is disclosed. A touch event can indicate an object touching the device. A hover event can indicate an object hovering over the device. The touch and hover sensing device can ensure that a desired hover event is not masked by an incidental touch event, e.g., a hand holding the device, by compensating for the touch event in the detected signal that represents both events. Conversely, when both a hover event and a touch event are desired, the touch and hover sensing device can ensure that both events are detected by adjusting the device sensors and/or the detected signal. The touch and hover sensing device can also detect concurrent hover events by identifying multiple peaks in the detected signal, each peak corresponding to a position of a hovering object.
    Type: Grant
    Filed: August 3, 2015
    Date of Patent: February 5, 2019
    Assignee: Apple Inc.
    Inventors: Brian Michael King, Omar S. Leung, Paul G. Puskarich, Jeffrey Traer Bernstein, Andrea Mucignat, Avi E. Cieplinski, Muhammad U. Choudry, Praveen R. Subramani, Marc J. Piche, David Amm, Duncan Robert Kerr
  • Patent number: 9836158
    Abstract: Compensation for sensors in a touch and hover sensing device is disclosed. Compensation can be for sensor resistance and/or sensor sensitivity variation that can adversely affect touch and hover measurements at the sensors. To compensate for sensor resistance, the device can gang adjacent sensors together so as to reduce the overall resistance of the sensors. In addition or alternatively, the device can drive the sensors with voltages from multiple directions so as to reduce the effects of the sensors' resistance. To compensate for sensor sensitivity variation (generally at issue for hover measurements), the device can apply a gain factor to the measurements, where the gain factor is a function of the sensor location, so as to reduce the sensitivity variation at different sensor locations on the device.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: December 5, 2017
    Assignee: Apple Inc.
    Inventors: Brian Michael King, Omar S. Leung, Paul G. Puskarich, Jeffrey Traer Bernstein, Andrea Mucignat, Avi E. Cieplinski, Muhammad Umar Choudry, Praveen R. Subramani, Marc J. Piche, David Amm, Duncan Robert Kerr
  • Publication number: 20170199625
    Abstract: Ground detection of a touch sensitive device is disclosed. The device can detect its grounded state so that poor grounding can be selectively compensated for in touch signals outputted by the device. The device can include one or more components to monitor certain conditions of the device. The device can analyze the monitored conditions to determine the grounding condition of the device. The device can apply a function to compensate its touch signal outputs if the device determines that it is poorly grounded. Conversely, the device can omit the function if the device determines that it is well grounded.
    Type: Application
    Filed: March 27, 2017
    Publication date: July 13, 2017
    Inventors: Steven P. HOTELLING, David AMM, Michael LAMMERS, John T. ORCHARD, Brian Michael KING, Omar S. LEUNG, Deniz TEOMAN
  • Patent number: 9639178
    Abstract: An optical stylus and host computing system is provided, as are methods related to the operation thereof. In particular, in an example embodiment, a method of operating the optical stylus is provided that includes determining when the optical stylus is in contact with a surface based on signals received by a processor from a pressure sensor of the optical stylus and capturing an image while the optical stylus is in contact with the surface using a camera of the optical stylus. The captured image is then transmitted to a host system.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 2, 2017
    Assignee: Apple Inc.
    Inventors: David Amm, David I. Simon, Omar Sze Leung
  • Patent number: 9457379
    Abstract: Ultrasonic transmitters that can be used for ranging in mobile devices are disclosed. In some examples, an ultrasonic transmitter device can be configured to transmit ultrasonic signals in multiple frequency bands. The transmitter can include multiple sets of ultrasonic transmitters, each capable of transmitting in a different frequency band. In other examples, frequency-adjustable ultrasonic transmitters can be used. The transmitters can be configured to change one or more of a length, mass, or tension of a membrane to change a resonant frequency of the membrane. In some examples, the transmitter can include a non-uniformly shaped membrane capable of vibrating at more than one resonant frequency. The ultrasonic transmitters can be included within a housing configured to control the flow of air within and out of the housing. The transmitter membrane can further be formed on a patterned substrate configured to increase the sound pressure levels produced by the transmitter.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: October 4, 2016
    Assignee: Apple Inc.
    Inventors: David Amm, Henry Yang, Matthew Emanuel Last
  • Publication number: 20160259474
    Abstract: Touch and hover switching is disclosed. A touch and hover sensing device can switch between a touch mode and a hover mode. During a touch mode, the device can be switched to sense one or more objects touching the device. During a hover mode, the device can be switched to sense one or more objects hovering over the device. The device can include a panel having multiple sensors for sensing a touching object and/or a hovering object and a touch and hover control system for switching the device between the touch and hover modes. The device's touch and hover control system can include a touch sensing circuit for coupling to the sensors to measure a capacitance indicative of a touching object during the touch mode, a hover sensing circuit for coupling to the sensors to measure a capacitance indicative of a hovering object during the hover mode, and a switching mechanism for switching the sensors to couple to either the touch sensing circuit or the hover sensing circuit.
    Type: Application
    Filed: February 22, 2016
    Publication date: September 8, 2016
    Inventors: Brian Michael KING, Omar S. LEUNG, Paul G. PUSKARICH, Jeffrey Traer BERNSTEIN, Andrea MUCIGNAT, Avi E. CIEPLINSKI, Muhammad U. CHOUDRY, Praveen R. SUBRAMANI, Marc J. PICHE, David AMM, Duncan Robert KERR
  • Publication number: 20160209982
    Abstract: Improved capacitive touch and hover sensing with a sensor array is provided. An AC ground shield positioned behind the sensor array and stimulated with signals of the same waveform as the signals driving the sensor array may concentrate the electric field extending from the sensor array and enhance hover sensing capability. The hover position and/or height of an object that is nearby, but not directly above, a touch surface of the sensor array, e.g., in the border area at the end of a touch screen, may be determined using capacitive measurements of sensors near the end of the sensor array by fitting the measurements to a model. Other improvements relate to the joint operation of touch and hover sensing, such as determining when and how to perform touch sensing, hover sensing, both touch and hover sensing, or neither.
    Type: Application
    Filed: March 28, 2016
    Publication date: July 21, 2016
    Inventors: Jeffrey Traer BERNSTEIN, David AMM, Omar S. LEUNG, Christopher Tenzin MULLENS, Brian Michael KING, Brian R. LAND, Reese T. CUTLER
  • Publication number: 20150338964
    Abstract: Detecting a signal from a touch and hover sensing device, in which the signal can be indicative of concurrent touch events and/or hover events, is disclosed. A touch event can indicate an object touching the device. A hover event can indicate an object hovering over the device. The touch and hover sensing device can ensure that a desired hover event is not masked by an incidental touch event, e.g., a hand holding the device, by compensating for the touch event in the detected signal that represents both events. Conversely, when both a hover event and a touch event are desired, the touch and hover sensing device can ensure that both events are detected by adjusting the device sensors and/or the detected signal. The touch and hover sensing device can also detect concurrent hover events by identifying multiple peaks in the detected signal, each peak corresponding to a position of a hovering object.
    Type: Application
    Filed: August 3, 2015
    Publication date: November 26, 2015
    Inventors: Brian Michael KING, Omar S. LEUNG, Paul G. PUSKARICH, Jeffrey Traer BERNSTEIN, Andrea MUCIGNAT, Avi E. CIEPLINSKI, Muhammad U. CHOUDRY, Praveen R. SUBRAMANI, Marc J. PICHE, David AMM, Duncan Robert KERR
  • Publication number: 20150169114
    Abstract: Compensation for sensors in a touch and hover sensing device is disclosed. Compensation can be for sensor resistance and/or sensor sensitivity variation that can adversely affect touch and hover measurements at the sensors. To compensate for sensor resistance, the device can gang adjacent sensors together so as to reduce the overall resistance of the sensors. In addition or alternatively, the device can drive the sensors with voltages from multiple directions so as to reduce the effects of the sensors' resistance. To compensate for sensor sensitivity variation (generally at issue for hover measurements), the device can apply a gain factor to the measurements, where the gain factor is a function of the sensor location, so as to reduce the sensitivity variation at different sensor locations on the device.
    Type: Application
    Filed: February 25, 2015
    Publication date: June 18, 2015
    Inventors: Brian Michael KING, Omar S. LEUNG, Paul G. PUSKARICH, Jeffrey Traer BERNSTEIN, Andrea MUCIGNAT, Avi E. CIEPLINSKI, Muhammad Umar CHOUDRY, Praveen R. SUBRAMANI, Marc J. PICHE, David AMM, Duncan Robert KERR
  • Patent number: 8886217
    Abstract: The security level and/or other device behavior, configurations, or settings on a mobile device can be modified based on the location of the mobile device. The location of the mobile device can be determined by analyzing location aspects present at a location, where any parameters or attributes of a location that can assist in identifying a particular location may be used as location aspects. In a setup process, the mobile device identifies available aspects at a location and can use the available aspects to determine a location context associated with a location. In a use example, the device identifies available aspects at a location and determines whether the available aspects match a previously defined location context. If the available aspects match the previously defined location context, device behavior, configurations, or settings on a mobile device can be modified.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: November 11, 2014
    Assignee: Apple Inc.
    Inventors: Alexander Reitter, David Amm, Julian Missig, Raymond Walsh
  • Publication number: 20140187200
    Abstract: The security level and/or other device behavior, configurations, or settings on a mobile device can be modified based on the location of the mobile device. The location of the mobile device can be determined by analyzing location aspects present at a location, where any parameters or attributes of a location that can assist in identifying a particular location may be used as location aspects. In a setup process, the mobile device identifies available aspects at a location and can use the available aspects to determine a location context associated with a location. In a use example, the device identifies available aspects at a location and determines whether the available aspects match a previously defined location context. If the available aspects match the previously defined location context, device behavior, configurations, or settings on a mobile device can be modified.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: Apple Inc.
    Inventors: Alexander Reitter, David Amm, Julian Missig, Raymond Walsh
  • Publication number: 20140160880
    Abstract: Ultrasonic ranging for mobile devices is disclosed. A mobile device using ultrasonic ranging can include an ultrasound transmitter capable of emitting an ultrasound signal for detection by a proximate device and an ultrasound receiver capable of receiving an ultrasound signal from the proximate device. The mobile device can then use a time lapse associated with one or both of these ultrasound signals to find a range to the proximate device.
    Type: Application
    Filed: March 11, 2013
    Publication date: June 12, 2014
    Applicant: Apple Inc.
    Inventors: Brian Michael KING, David AMM, Scott P. PORTER, Steven P. HOTELLING
  • Publication number: 20140157904
    Abstract: Ultrasonic transmitters that can be used for ranging in mobile devices are disclosed. In some examples, an ultrasonic transmitter device can be configured to transmit ultrasonic signals in multiple frequency bands. The transmitter can include multiple sets of ultrasonic transmitters, each capable of transmitting in a different frequency band. In other examples, frequency-adjustable ultrasonic transmitters can be used. The transmitters can be configured to change one or more of a length, mass, or tension of a membrane to change a resonant frequency of the membrane. In some examples, the transmitter can include a non-uniformly shaped membrane capable of vibrating at more than one resonant frequency. The ultrasonic transmitters can be included within a housing configured to control the flow of air within and out of the housing. The transmitter membrane can further be formed on a patterned substrate configured to increase the sound pressure levels produced by the transmitter.
    Type: Application
    Filed: March 11, 2013
    Publication date: June 12, 2014
    Applicant: Apple Inc.
    Inventors: David Amm, Henry Yang, Matthew Emanuel Last
  • Publication number: 20140160893
    Abstract: Mobile devices with ultrasound ranging are disclosed. A mobile device with ultrasound ranging can include a multifunctional component capable of performing multiple functions in the device, where the component can function as an ultrasound transmitter capable of transmitting an ultrasound signal to a proximate device. In some examples, the component can also function as a power button capable of powering the device up and down. In some examples, the component can also function as a home button capable of causing a home page to display on the device. The mobile device can further include an ultrasound receiver capable of receiving an ultrasound signal from the proximate device, where the device can calculate a range of the proximate device based on a time lapse associated with the received ultrasound signal.
    Type: Application
    Filed: March 11, 2013
    Publication date: June 12, 2014
    Applicant: Apple Inc.
    Inventors: David Amm, Brian Michael King, Steven P. Hotelling
  • Publication number: 20120127110
    Abstract: An optical stylus and host computing system is provided, as are methods related to the operation thereof. In particular, in an example embodiment, a method of operating the optical stylus is provided that includes determining when the optical stylus is in contact with a surface based on signals received by a processor from a pressure sensor of the optical stylus and capturing an image while the optical stylus is in contact with the surface using a camera of the optical stylus. The captured image is then transmitted to a host system.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 24, 2012
    Applicant: Apple Inc.
    Inventors: David Amm, David I. Simon, Omar Sze Leung
  • Publication number: 20070035838
    Abstract: A grating light valve is provided with a plurality of spaced reflective ribbons, spatially arranged over a semiconductor substrate, the ribbons and substrate being provided with reflective surfaces. The grating light valve is configured to optimize the conditions for constructive and destructive interference with an incident light source having a given wavelength. In a preferred embodiment, one set of ribbons is moveable with respect to the substrate and the second set of ribbons. The substrate is typically provided with a protective layer, which may be thermally grown silicon dioxide or other dielectric. A conductive trace is provided on the dielectric layer and grounded through the dielectric layer to the substrate, comprising a conductive trace for easy release of charge otherwise trapped in the dielectric layer.
    Type: Application
    Filed: October 17, 2006
    Publication date: February 15, 2007
    Inventors: James Hunter, Christopher Gudeman, David Amm, Akira Tomita
  • Patent number: 7057795
    Abstract: An optical MEM devices which utilizes individually addressable ribbon pairs configured to modulate light is disclosed. The ribbon pairs preferably comprise silicon nitride with a reflective aluminum layers, wherein at least one ribbon from each ribbon pair is in electrical communication with a driver circuit for controllably addressing the ribbon pairs individually. The ribbons are preferably configured to modulate light having wavelengths in a range of 0.4 to 2.0 microns suitable for display and optical communication technologies. The system preferably comprises optical fibers for transmitting light to individually addressable ribbon pairs and for transmitting reflected light from individually addressable ribbon pairs.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: June 6, 2006
    Assignee: Silicon Light Machines Corporation
    Inventors: Jim Hunter, David Amm, Christopher Gudeman
  • Patent number: 7042611
    Abstract: A modulator for and a method of modulating an incident beam of light including means for supporting a plurality of active elements and a plurality of bias elements, each active and bias element including a light reflective planar surface with the light reflective planar surfaces of the plurality of active elements lying in a first parallel plane and the plurality of bias elements lying in a second parallel plane wherein the plurality of active and bias elements are parallel to each other and further wherein the plurality of bias elements are mechanically or electrically deflected with respect to the plurality of active elements. Each of the plurality of bias elements is deflected an odd multiple of the wavelength of an incident light wave divided by four and the plurality of light reflective planar surfaces of the plurality of active elements move between the first parallel plane to the second parallel plane.
    Type: Grant
    Filed: March 3, 2003
    Date of Patent: May 9, 2006
    Assignee: Silicon Light Machines Corporation
    Inventors: Christopher Gudeman, Omar Leung, James Hunter, David Amm