Patents by Inventor Michael Charles Turner

Michael Charles Turner 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).

  • Global navigation satellite system
    Patent number: 9876529
    Abstract: A method and apparatus for providing information about an encrypted signal transmitted by a satellite in a satellite navigation system are disclosed. A data sequence of the encrypted signal as transmitted is obtained, a signal sample is extracted from the data sequence, the signal sample including a part of the data sequence having a length less than a total length of the data sequence, and the signal sample and information about when the data included in the signal sample was transmitted by the satellite are transmitted, as the encrypted signal information, to a receiver for use in the satellite navigation system. A method and apparatus for authenticating an unencrypted signal based on the encrypted signal information are also disclosed.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: January 23, 2018
    Assignee: AIRBUS DEFENCE AND SPACE LIMITED
    Inventor: Michael Charles Turner
  • GLOBAL NAVIGATION SATELLITE SYSTEM
    Publication number: 20150171917
    Abstract: A method and apparatus for providing information about an encrypted signal transmitted by a satellite in a satellite navigation system are disclosed. A data sequence of the encrypted signal as transmitted is obtained, a signal sample is extracted from the data sequence, the signal sample including a part of the data sequence having a length less than a total length of the data sequence, and the signal sample and information about when the data included in the signal sample was transmitted by the satellite are transmitted, as the encrypted signal information, to a receiver for use in the satellite navigation system. A method and apparatus for authenticating an unencrypted signal based on the encrypted signal information are also disclosed.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 18, 2015
    Applicant: AIRBUS DEFENCE AND SPACE LIMITED
    Inventor: Michael Charles Turner