Patents by Inventor Riley E. Brandt

Riley E. Brandt 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: 20210295661
    Abstract: Embodiments are directed to a pressure mapping system that includes a sensing pad configured for placement between a user and a bed. The sensing pad can include an array of actuation cells where each actuation cell in the array of actuation cells is configured to actuate in response to a fluid being introduced into the actuation cell. The sensing pad can also include an array of pressure sensors where each pressure sensor in the array of pressure sensors is configured to output pressure measurements. The pressure mapping system can also include a control system that is configured to receive the pressure measurements from the array of pressure sensors, generate a pressure map for the user based on the set of pressure measurements and a position of the pressure sensing cells on the sensing pad, and actuate a subset of the array of actuation cells based on the pressure map.
    Type: Application
    Filed: June 4, 2021
    Publication date: September 23, 2021
    Inventors: Wegene H. Tadele, Antonio F. Herrera, Riley E. Brandt, Yingjun Zhang, Jason Lor
  • Publication number: 20210085091
    Abstract: An in-bed haptic device may include an array of actuation cells. Actuation cells of the array of actuation cells may be configured to actuate (e.g., expand, contract, or otherwise change shape) in a predetermined sequence to provide haptic outputs. The in-bed haptic device may be configured to be placed beneath a user during use, for example between a user and a mattress. The haptic outputs may be provided to help a user relax, to move and/or wake a user, to indicate outputs, alerts, or notifications at the in-bed haptic device or another electronic device, or the like.
    Type: Application
    Filed: September 14, 2020
    Publication date: March 25, 2021
    Inventors: Riley E. Brandt, Linda Benavente-Notaro, Antonio Herrera, Denis Lin, Zijing Zeng, Erno H. Klaassen, Zhipeng Zhang
  • Patent number: 10957501
    Abstract: An electronic device includes an enclosure and a keyboard positioned within the enclosure. The keyboard includes a substrate and a key mechanism. The key mechanism includes a keycap support mechanism, a keycap supported by the keycap support mechanism and movable relative to the substrate, a ferromagnetic component attached to the keycap support mechanism, and a selectively magnetizable magnet. The selectively magnetizable magnet system may include a magnetizable material and a coil configured to selectively magnetize and demagnetize the magnetizable material. The key mechanism may include a collapsible dome biasing the keycap toward the extended position.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: March 23, 2021
    Assignee: APPLE INC.
    Inventors: Riley E. Brandt, Richard H. Koch, Zhipeng Zhang, John C. DiFonzo, Michael B. Wittenberg
  • Publication number: 20200201399
    Abstract: Keyboards are disclosed that are retractable. Movable magnetic or mechanical linkage elements are configured to reposition keycaps and stabilizers between different relative positions. Structures in a movable layer can act on the keycaps or stabilizers to move the keycaps and stabilizers into a retracted position for storage and for saving space in an electronic device. The stabilizers can be scissor mechanisms, butterfly mechanisms, and similar devices. The movable layer can be moved in response to rotation of a hinge or other mechanical element in the electronic device.
    Type: Application
    Filed: August 8, 2019
    Publication date: June 25, 2020
    Inventors: Ian A. Guy, Ari P. Miller, Edward J. Cooper, Houtan R. Farahani, Kevin M. Robinson, Riley E. Brandt
  • Patent number: 8969183
    Abstract: Method for making thin crystalline or polycrystalline layers. The method includes electrochemically etching a crystalline silicon template to form a porous double layer thereon, the double layer including a highly porous deeper layer and a less porous shallower layer. The shallower layer is irradiated with a short laser pulse selected to recrystallize the shallower layer resulting in a crystalline layer. Silicon is deposited on the recrystallized shallower layer and the silicon is irradiated with a short laser pulse selected to crystalize the silicon leaving a layer of crystallized silicon on the template. Thereafter, the layer of crystallized silicon is separated from the template. The process of the invention can be used to make optoelectronic devices.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: March 3, 2015
    Assignees: President and Fellows of Harvard College, Massachusetts Institute of Technology
    Inventors: Mark T. Winkler, Tonio Buonassisi, Riley E. Brandt, Michael J. Aziz, Austin Joseph Akey
  • Publication number: 20130288463
    Abstract: Method for making thin crystalline or polycrystalline layers. The method includes electrochemically etching a crystalline silicon template to form a porous double layer thereon, the double layer including a highly porous deeper layer and a less porous shallower layer. The shallower layer is irradiated with a short laser pulse selected to recrystallize the shallower layer resulting in a crystalline layer. Silicon is deposited on the recrystallized shallower layer and the silicon is irradiated with a short laser pulse selected to crystalize the silicon leaving a layer of crystallized silicon on the template. Thereafter, the layer of crystallized silicon is separated from the template. The process of the invention can be used to make optoelectronic devices.
    Type: Application
    Filed: October 25, 2012
    Publication date: October 31, 2013
    Inventors: Mark T. Winkler, Tonio Buonassisi, Riley E. Brandt, Michael J. Aziz, Austin Joseph Akey