Patents by Inventor Ian Bedwell

Ian Bedwell 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: 8200050
    Abstract: A device (10) for sensing an acoustic signal is described. The device includes a flexible portion (14) including a laser active region (13) whose emitted wavelength varies according to a mechanical force acting on the flexible portion (14) and a flexible support member (24) operable to flex or bend according to the acoustic signal. The flexible portion (14) is coupled with the support member (24) so as to cause the flexible portion to flex or bend in accordance with the support member (24) thereby changing the emitted wavelength of the laser active region (13) of the flexible portion (14).
    Type: Grant
    Filed: September 28, 2005
    Date of Patent: June 12, 2012
    Assignees: The Commonwealth of Australia, Thales Underwater Systems Pty Ltd
    Inventors: Scott Foster, John van Velzen, Alexei Tikhomirov, Francois Luc, Ian Bedwell
  • Patent number: 8130594
    Abstract: A hydrophone (10) for immersion in a liquid body defining a depth-dependent static pressure and a dynamic pressure. The hydrophone (10) includes a pressure-bearing element (11) for exposure to the liquid body; a motion sensor (13) spaced apart from the pressure bearing element (11); and a dilatant coupling material (14) disposed intermediate the pressure-bearing element (11) and the motion sensor (13) so as to mechanically transmit movements substantially corresponding to the dynamic pressure from the pressure-bearing element (11) to the motion sensor (13). The dilatant coupling material (14) does not transmit movements to the motion sensor (13) that substantially correspond to the depth-dependent static pressure.
    Type: Grant
    Filed: December 16, 2006
    Date of Patent: March 6, 2012
    Assignees: Thales Underwater Systems Pty Limited, The Commonwealth of Australia
    Inventor: Ian Bedwell
  • Patent number: 7969823
    Abstract: A hydrophone (10) for immersion in a liquid body defining a pressure is disclosed The hydrophone (10) includes a sensor (11) for providing an electrical signal indicative of the pressure; and a transducer (12) electrically connected to the sensor (11). The transducer (12) acts upon a fiber optic cable (15) so as to convert the electrical signal into a corresponding optical output signal for transmission within the fiber optic cable (15). The liquid body defines a depth-dependent static pressure and a dynamic pressure and the sensor (11) provides an electrical signal having a first component indicative of the static pressure and a second component indicative of the dynamic pressure. A filter (16) is electrically connected to the sensor (11) so as to receive (the electrical signal, filter out the first component, and output to the transducer (12) a uttered electrical signal indicative of substantially only the second component.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: June 28, 2011
    Assignees: Thales Underwater Systems Pty Limited, The Commonwealth of Australia
    Inventor: Ian Bedwell
  • Publication number: 20100260013
    Abstract: A hydrophone (10) for immersion in a liquid body defining a depth-dependent static pressure and a dynamic pressure. The hydrophone (10) includes a pressure-bearing element (11) for exposure to the liquid body; a motion sensor (13) spaced apart from the pressure bearing element (11); and a dilatant coupling material (14) disposed intermediate the pressure-bearing element (11) and the motion sensor (13) so as to mechanically transmit movements substantially corresponding to the dynamic pressure from the pressure-bearing element (11) to the motion sensor (13). The dilatant coupling material (14) does not transmit movements to the motion sensor (13) that substantially correspond to the depth-dependent static pressure.
    Type: Application
    Filed: December 16, 2006
    Publication date: October 14, 2010
    Applicant: THALES UNDERWATER SYSTEMS PTY LIMITED
    Inventor: Ian Bedwell
  • Publication number: 20090180730
    Abstract: A device (10) for sensing an acoustic signal is described. The device includes a flexible portion (14) including a laser active region (13) whose emitted wavelength varies according to a mechanical force acting on the flexible portion (14) and a flexible support member (24) operable to flex or bend according to the acoustic signal. The flexible portion (14) is coupled with the support member (24) so as to cause the flexible portion to flex or bend in accordance with the support member (24) thereby changing the emitted wavelength of the laser active region (13) of the flexible portion (14).
    Type: Application
    Filed: September 28, 2005
    Publication date: July 16, 2009
    Applicant: Thales Underwater Systems Pty Ltd
    Inventors: Scott Foster, John Van Velzen, Alexei Tikhomirov, Francois Luc, Ian Bedwell
  • Publication number: 20090135673
    Abstract: A hydrophone (10) for immersion in a liquid body defining a pressure is disclosed The hydrophone (10) includes a sensor (11) for providing an electrical signal indicative of the pressure; and a transducer (12) electrically connected to the sensor (11). The transducer (12) acts upon a fibre optic cable (15) so as to convert the electrical signal into a corresponding optical output signal for transmission within the fibre optic cable (15). The liquid body defines a depth-dependent static pressure and a dynamic pressure and the sensor (11) provides an electrical signal having a first component indicative of the static pressure and a second component indicative of the dynamic pressure. A filter (16) is electrically connected to the sensor (11) so as to receive (the electrical signal, filter out the first component, and output to the transducer (12) a uttered electrical signal indicative of substantially only the second component.
    Type: Application
    Filed: November 21, 2006
    Publication date: May 28, 2009
    Applicants: THALES UNDERWATER SYSTEMS PTY LIMITED, THE COMMONWEALTH OF AUSTRALIA
    Inventor: Ian Bedwell