Patents by Inventor DAVID JOHN AITKEN

DAVID JOHN AITKEN 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).

  • Relating to antennas
    Patent number: 9762325
    Abstract: An optical signal transmission apparatus (1) for a rotating antenna comprising a plurality of optical modulators (6) arranged for receiving a respective plurality of analog RF signals (5) and for modulating a respective plurality of optical signals therewith to produce a plurality of modulated analog optical signals (8). A plurality of opto-electrical converters (14) each converts a respective modulated analog optical signal (13) into an analog electrical signal. The plurality of optical modulators (6) are rotationally coupled in optical communication with the plurality of opto-electrical converters (14) via an optical rotary joint (10) including a reversion prism.
    Type: Grant
    Filed: December 13, 2013
    Date of Patent: September 12, 2017
    Assignee: BAE SYSTEMS plc
    Inventors: David John Aitken, Simon Charles Giles, Robert John Mark Longstone, Mohammed Nawaz, Andrew James Smith, Michael Andrew Scott
  • IMPROVEMENTS IN AND RELATING TO ANTENNAS
    Publication number: 20150304043
    Abstract: An optical signal transmission apparatus (1) for a rotating antenna comprising a plurality of optical modulators (6) arranged for receiving a respective plurality of analogue RF signals (5) and for modulating a respective plurality of optical signals therewith to produce a plurality of modulated analogue optical signals (8). A plurality of opto-electrical converters (14) each converts a respective modulated analogue optical signal (13) into an analogue electrical signal. The plurality of optical modulators (6) are rotationally coupled in optical communication with the plurality of opto-electrical converters (14) via an optical rotary joint (10) including a reversion prism.
    Type: Application
    Filed: December 13, 2013
    Publication date: October 22, 2015
    Applicant: BAE SYSTEMS plc
    Inventors: DAVID JOHN AITKEN, SIMON CHARLES GILES, ROBERT JOHN MARK LONGSTONE, MOHAMMED NAWAZ, ANDREW JAMES SMITH, MICHAEL ANDREW SCOTT