Patents Assigned to Astral, Inc.
  • Actively stabilized platform system
    Patent number: 5922039
    Abstract: A stabilized platform useable for various purposes to provide compensation for motion in two axes, such as pitch and roll on a ship. The system operates independently of the object to be stabilized and without the use of gyroscopes by using accelerometers, position sensors and a proportional drive controller augmented with estimation and filtering.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: July 13, 1999
    Assignee: Astral, Inc.
    Inventors: Raymond V. Welch, William W. Dorsey, Stephen J. Fujikawa, Charles F. Settgast, David Reed