Patents by Inventor Martin W. Greenwood

Martin W. Greenwood 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: 11233325
    Abstract: The present disclosure relates to antenna assemblies and systems and methods for steering an antenna to one or more satellites. An embodiment herein provides for an assembly comprising a rotatable plate rotatable about a first axis to steer the antenna in azimuth; a first panel affixed to the rotatable plate and comprising a first plurality of phased array antenna elements to steer a first beam of radio waves in elevation; and a second panel comprising a second plurality of phased array antenna elements configured to steer a second beam of radio waves in azimuth, wherein rotation of the distal end about the second axis steers the second beam of radio waves in elevation.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: January 25, 2022
    Assignee: PANASONIC AVIONICS CORPORATION
    Inventors: Martin W. Greenwood, Jignesh M. Sutaria, Rudy Concepcion, Jr., Amir Ali Mirmirani
  • Publication number: 20210249767
    Abstract: The present disclosure relates to antenna assemblies and systems and methods for steering an antenna to one or more satellites. An embodiment herein provides for an assembly comprising a rotatable plate rotatable about a first axis to steer the antenna in azimuth; a first panel affixed to the rotatable plate and comprising a first plurality of phased array antenna elements to steer a first beam of radio waves in elevation; and a second panel comprising a second plurality of phased array antenna elements configured to steer a second beam of radio waves in azimuth, wherein rotation of the distal end about the second axis steers the second beam of radio waves in elevation.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 12, 2021
    Inventors: Martin W. GREENWOOD, Jignesh M. SUTARIA, Rudy CONCEPCION, Jr., Amir Ali MIRMIRANI
  • Publication number: 20010055298
    Abstract: An apparatus and system for providing wireless access to packet data networks and value-added services is disclosed. The wireless access integrated node (WAIN) offers a simplified internal architecture which eliminates unnecessary intermediate protocols contained in a multi-node hierarchical network architecture while still supporting the main functions of standard mobile networks and preserving standard external interfaces. The WAIN is essentially an integrated network element that provides local radio coverage and complements the capability of the public wireless network. The WAIN can automatically configure itself to minimize interference and achieve optimal performance.
    Type: Application
    Filed: May 8, 2001
    Publication date: December 27, 2001
    Inventors: John Baker, David K. Hui, Martin W. Greenwood, Antti Linden, Yong Zhou
  • Patent number: 3999463
    Abstract: An improved spring controlled poppet-type cushion for a fluid piston-cylinder device, wherein the cushion is connected to the piston by spring means and aligned with the inlet-exhaust opening at the end of the cylinder. The improved cushion includes retaining structure for holding the spring associated with it in axial alignment with the opening for receipt therein as the piston approaches the end of the cylinder. This permits the piston to move into contact with the wall without interference from the spring. The sealing of the cushion within the opening in the end of the cylinder is effected at a point spaced axially from the piston when the latter is in contact with the end wall to provide an axial spacing between the cushion and piston.
    Type: Grant
    Filed: February 27, 1975
    Date of Patent: December 28, 1976
    Assignee: Componetrol, Inc.
    Inventor: Martin W. Greenwood