Patents by Inventor Robert S. Walker

Robert S. Walker 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: 8493326
    Abstract: A small-sized text input device is attachable to and removable from a game controller. The text input device can be sized and configured to fit between grip portions of the game controller, and can be attachable to the game controller with a separate attachment bracket. Different brackets can be used to attach the text input device to different types of game controllers. A game player holding the game controller can access the text keys of the text input device with his or her thumbs, and by making only minor (or no) adjustment to the position of his or her hands on the grip portions.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: July 23, 2013
    Assignee: Microsoft Corporation
    Inventors: Greg Martinez, James R. Stewart, William P. Stiles, Richard S. Lum, Robert S. Walker
  • Patent number: 7283125
    Abstract: A text input device for attachment to a game controller includes a small-sized housing, upper and lower faces, a plurality of text entry keys disposed on the upper face, and an attachment interface disposed on the lower face. A bracket for attaching the text input device to a game controller includes an arm portion having first and second ends. An attachment plate is fixed to the first end and has at least one engaging member protruding therefrom and engaging the attachment interface of the text input device. The bracket further includes at least one retaining member protruding from the second end in a position such that, when the attachment plate is coupled to a first part of a game controller and the retaining member is in contact with a second part of the game controller, a force is applied to a face of the retaining member by the second part of the game controller so as to maintain the coupling of the attachment plate to the game controller first part.
    Type: Grant
    Filed: May 9, 2003
    Date of Patent: October 16, 2007
    Assignee: Microsoft Corporation
    Inventors: Greg Martinez, William P. Stiles, Richard S. Lum, Robert S. Walker
  • Publication number: 20040224765
    Abstract: A text input device for attachment to a game controller includes a small-sized housing, upper and lower faces, a plurality of text entry keys disposed on the upper face, and an attachment interface disposed on the lower face. A bracket for attaching the text input device to a game controller includes an arm portion having first and second ends. An attachment plate is fixed to the first end and has at least one engaging member protruding therefrom and engaging the attachment interface of the text input device. The bracket further includes at least one retaining member protruding from the second end in a position such that, when the attachment plate is coupled to a first part of a game controller and the retaining member is in contact with a second part of the game controller, a force is applied to a face of the retaining member by the second part of the game controller so as to maintain the coupling of the attachment plate to the game controller first part.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 11, 2004
    Applicant: Microsoft Corporation
    Inventors: Greg Martinez, William P. Stiles, Richard S. Lum, Robert S. Walker
  • Publication number: 20040222970
    Abstract: A small-sized text input device is attachable to and removable from a game controller. The text input device can be sized and configured to fit between grip portions of the game controller, and can be attachable to the game controller with a separate attachment bracket. Different brackets can be used to attach the text input device to different types of game controllers. A game player holding the game controller can access the text keys of the text input device with his or her thumbs, and by making only minor (or no) adjustment to the position of his or her hands on the grip portions.
    Type: Application
    Filed: May 9, 2003
    Publication date: November 11, 2004
    Applicant: Microsoft Corporation
    Inventors: Greg Martinez, James R. Stewart, William P. Stiles, Richard S. Lum, Robert S. Walker
  • Patent number: 6618665
    Abstract: An internal combustion engine control system processes data to develop desired fueling data representing a desired amount of fuel that is to be injected into the engine for combustion. The desired fueling data is modified by a multiplier during a cranking, starting, and initial running phase of the engine, and after the engine has started and begins running, modifies the multiplier by a multiplier adder. Use of the multiplier added is discontinued once the engine fuel injectors have sufficiently warmed up. The multiplier adder is a function of an average of desired fueling data taken over a time interval that includes engine cranking, starting, and initial engine running.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: September 9, 2003
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Robert S. Walker, Michael M. Beyene, Suresh L. Satyavolu
  • Publication number: 20020143458
    Abstract: An internal combustion engine control system processes data to develop desired fueling data representing a desired amount of fuel that is to be injected into the engine for combustion. The desired fueling data is modified by a multiplier during a cranking, starting, and initial running phase of the engine, and after the engine has started and begins running, modifies the multiplier by a multiplier adder. Use of the multiplier added is discontinued once the engine fuel injectors have sufficiently warmed up. The multiplier adder is a function of an average of desired fueling data taken over a time interval that includes engine cranking, starting, and initial engine running.
    Type: Application
    Filed: March 29, 2001
    Publication date: October 3, 2002
    Inventors: Robert S. Walker, Michael M. Beyene, Suresh L. Satyavolu
  • Patent number: 5609234
    Abstract: A coin validator has a sensor circuit including two sensor coils each of small diameter, the coils being positioned such that they are passed in succession by a coin moving through a test section of the validator. The sensor circuit derives a signal representing the difference between the coil outputs so that bimetallic coins having a different outer ring material from the core material are easily detected.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: March 11, 1997
    Inventors: Robert S. Walker, Timothy P. Waite