Patents by Inventor David J. Bull

David J. Bull 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: 7881801
    Abstract: An apparatus (30) that can test external components of a cochlear implant system in a manner that does not require the person conducting the test to have advanced knowledge of the operation of the tested component. The apparatus provides a relatively quick and straightforward answer to the question of whether the component is operative or not. The testing apparatus (30) comprises at least one testing station (32,33,34) for receiving the component to be tested and makes an electrical and/or inductive connection thereto. A testing circuit is adapted to apply at least one test to the component and measure the response of the component to that test. The apparatus (30) compares the response of the component to stored data indicative of the response to the test of at least one equivalent component that is known to be operational and outputs a result of said comparison.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: February 1, 2011
    Assignee: Cochlear Limited
    Inventors: Paul M. Carter, David J. Bull
  • Patent number: 6487439
    Abstract: A probe configured as a finger tip of a glove used to recognize tissue types in a human patient and adapted to perform both optical and electrical measurements to diagnose tissue type while scanned over the surface of the tissue. Hybrid electronic technology reduces the size of the diagnostic elements. The necessary electrical connections are led down the finger and the glove to a remotely positioned control unit. The control unit provides power to the diagnostic device and analyzes the signals received from the device.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: November 26, 2002
    Inventors: Victor N. Skladnev, Richard L. Thompson, Irwin Wunderman, David J. Bull
  • Patent number: 5941822
    Abstract: A method and apparatus for tissue type recognition for use within the narrow confines of body canals and which can quickly produce an objective identification of the tissue types including the presence of pre-cancerous and cancerous activity. Possible configurations for the probe include endocervical probe configurations which make measurements in directions orthogonal to the long axis of the probe and configurations where multiple probe "tips" are arranged in a "wood drill" configuration. The apparatus has a measurement section that has at least one source of electromagnetic radiation such as a light emitting diode, a barrier which acts to confine the direction that the radiation can take and a detector such as a photodiode beyond the barrier, which is able to detect the radiation after it has been backscattered from tissue in close proximity to the surface of the cylinder.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: August 24, 1999
    Assignee: Polartechnics Limited
    Inventors: Victor N. Skladnev, Richard L. Thompson, Irwin Wunderman, David J. Bull
  • Patent number: 5792053
    Abstract: A hybrid probe in which the optical pathway and the optical sensors comprise elements located within a compact hybrid chip structure. The full optical system of the hybrid probe is located at its tip. No fibers are required to bring the light to and from the tip of the probe. This is achieved in part by mounting one or more LED dice on a substrate at the probe tip. Appropriate connections are made to these dice which are powered from electronics in the handle of the probe.
    Type: Grant
    Filed: March 17, 1997
    Date of Patent: August 11, 1998
    Assignee: Polartechnics, Limited
    Inventors: Victor N. Skladnev, Richard N. Thompson, Irwin Wunderman, David J. Bull