Patents by Inventor Christopher Daly

Christopher Daly 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).

  • Publication number: 20050159791
    Abstract: An implantable component (30) of a cochlear implant system comprising a housing for a stimulator unit (31) that is adapted to output one or more stimulation signals and an electrode assembly (30) adapted to apply electrical stimulation in accordance with the output of the stimulator unit (31). On implantation, the housing is positionable such that the electrode assembly (20) extends from the housing at least initially in a downward orientation toward the mastoid cavity before entering the cochlea. An external component (50, 60 or 70) of a cochlear implant system comprising a support for mounting to the ear of an recipient and an external signal transmitter coil (53) wherein the signal transmitter coil (53) is movably mounted to at least a portion of the support.
    Type: Application
    Filed: March 10, 2003
    Publication date: July 21, 2005
    Inventors: Christopher Daly, Akira Nakazawa, Peter Single
  • Publication number: 20050101878
    Abstract: The invention provides a method of electrical artefact compensation in measurement of a neural response. The neural response is evoked by a first stimulus, after which a compensatory stimulus is applied in order to counteract a stimulus artefact caused by the first stimulus. The invention also provides for short circuiting the stimulating electrode subsequent to the first stimulus. A system for implementing such steps is also provided. The invention may be of application in measurement of physiological responses, including neural responses and in particular a neural response of the auditory nerve.
    Type: Application
    Filed: April 18, 2002
    Publication date: May 12, 2005
    Inventors: Christopher Daly, Tony Nygard, Helmut Eder
  • Patent number: 5755747
    Abstract: An implanted device such as a cochlear implant system includes a housing containing stimulating pulse generating circuitry, and a plurality of electrodes external of the housing and receiving the pulses. Between the pulses, parasitic voltages may build up between the electrodes. In order to control the inrush current due to these parasitic voltages, multi-position switches are provided which selectively couple the electrodes to resistors selected to dissipate the voltages at a preselected maximum current to protect the body organs.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: May 26, 1998
    Inventors: Christopher Daly, Tony Mikeal Nygard, Paul Michael Carter, David Kerry Money, James Finlay Patrick, Christopher Mark Olufson
  • Patent number: 5042084
    Abstract: A transmission system wherein a transmitter includes a first tuned circuit and a transmitter coil is part of a second tuned circuit. A coupling means couples energy between the first tuned circuit and the second tuned circuit. A three wire unshielded cable carries both radio frequency and audio frequency signals. Filter means are provided for filtering the audio frequency signal so that it is free of interference from the radio frequency signal, which may include audio components due to its generally pulsed nature. The circuit may be adjusted for relatively constant coupling to a receiving coil as separation between the transmitter coil and the receiving coil changes.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: August 20, 1991
    Assignee: Cochlear Pty. Limited
    Inventor: Christopher Daly