Patents by Inventor Tissa Karunasiri

Tissa Karunasiri 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: 9191751
    Abstract: An exemplary apparatus for use with an auditory prosthesis system includes a housing, a connector port disposed at least partially within the housing and configured to be communicatively coupled to an auxiliary audio input device, a telecoil disposed at least partially within the housing, and a multi-position switch disposed at least partially within the housing and configured to selectively enable the auxiliary audio input device and the telecoil. The auxiliary audio input device is enabled and the telecoil is disabled when the switch is in a first position, both the auxiliary audio input device and the telecoil are enabled when the switch is in a second position, and the telecoil is enabled and the auxiliary audio input device is disabled when the switch is in a third position. Corresponding apparatuses, systems, and methods are also disclosed.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 17, 2015
    Assignee: Advanced Bionics AG
    Inventors: Lee F. Hartley, Roger S. Meier, Glen A. Griffith, Tracey L. Kruger, R. Tissa Karunasiri, Scott A. Crawford, Frank Nigro
  • Patent number: 9179229
    Abstract: Apparatus and methods for converting one type of speech processor unit into another type of speech processor unit.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: November 3, 2015
    Assignee: Advanced Bionics AG
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold, Lakshmi Narayan Mishra
  • Publication number: 20150057714
    Abstract: An exemplary system includes 1) an electro-acoustic stimulation (“EAS”) sound processor configured to be located external to a patient, 2) a cochlear implant communicatively coupled to the EAS sound processor and configured to be implanted within the patient, 3) an electrode array communicatively coupled to the cochlear implant and configured to be located within a cochlea of the patient, and 4) a receiver communicatively coupled to the EAS sound processor and configured to be in communication with an ear of the patient. The EAS sound processor directs at least one of the cochlear implant and the receiver to apply stimulation to the patient, records an evoked response that occurs in response to the stimulation, and performs a predetermined action in accordance with the evoked response. Corresponding systems and methods are also disclosed.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 26, 2015
    Inventors: Leonid M. Litvak, Smita S. Agrawal, Gulamali Emadi, Aniket Saoji, Charles C. Finley, R. Tissa Karunasiri, Kanthaiah Koka
  • Publication number: 20150051654
    Abstract: An exemplary system includes 1) a programming device configured to be located external to a cochlear implant patient and communicatively coupled to a cochlear implant system associated with the patient, 2) a programming interface device communicatively coupled to the programming device and configured to be located external to the patient, and 3) a receiver communicatively coupled directly to the programming interface device. The programming device directs at least one of the cochlear implant system and the receiver to apply stimulation to the patient, records an evoked response that occurs in response to the stimulation, and performs a predetermined action in accordance with the evoked response. Corresponding systems and methods are also disclosed.
    Type: Application
    Filed: March 22, 2013
    Publication date: February 19, 2015
    Inventors: Leonid M. Litvak, Smita S. Agrawal, Gulamali Emadi, Aniket Saoji, Charles C. Finley, Guillermo A. Calle, R. Tissa Karunasiri, Kanthaiah Koka
  • Publication number: 20140233775
    Abstract: An exemplary apparatus for use with an auditory prosthesis system includes a housing, a connector port disposed at least partially within the housing and configured to be communicatively coupled to an auxiliary audio input device, a telecoil disposed at least partially within the housing, and a multi-position switch disposed at least partially within the housing and configured to selectively enable the auxiliary audio input device and the telecoil. The auxiliary audio input device is enabled and the telecoil is disabled when the switch is in a first position, both the auxiliary audio input device and the telecoil are enabled when the switch is in a second position, and the telecoil is enabled and the auxiliary audio input device is disabled when the switch is in a third position. Corresponding apparatuses, systems, and methods are also disclosed.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 21, 2014
    Applicant: ADVANCED BIONICS AG
    Inventors: Lee F. Hartley, Roger S. Meier, Glen A. Griffith, Tracey L. Kruger, R. Tissa Karunasiri, Scott A. Crawford, Frank Nigro
  • Publication number: 20140169602
    Abstract: Apparatus and methods for converting one type of speech processor unit into another type of speech processor unit.
    Type: Application
    Filed: February 20, 2014
    Publication date: June 19, 2014
    Applicant: Advanced Bionics AG
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold, Lakshmi Narayan Mishra
  • Patent number: 8660285
    Abstract: A special accessory adapter for use with a BTE device of a cochlear implant (CI) system provides two inputs: a T-Mic input and an auxiliary audio input. Both inputs (the T-Mic input and the auxiliary audio input) are connected to a special mixer circuit integrated into a body of the accessory adapter. The body of the accessory adapter connects to the BTE using the same earhook attachment mechanism used by other accessories used by the CI system. The special mixer circuit prevents signals from either the T-Mic input or the auxiliary audio input from interfering with each other. Both signals, however, can still be processed by the processing circuits of the BTE and combined in such a way that user is able to perceive both signals at the same time.
    Type: Grant
    Filed: November 8, 2010
    Date of Patent: February 25, 2014
    Assignee: Advanced Bionics AG
    Inventor: R. Tissa Karunasiri
  • Patent number: 8660658
    Abstract: Apparatus and methods for converting one type of speech processor unit into another type of speech processor unit.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: February 25, 2014
    Assignee: Advanced Bionics AG
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold, Lakshmi Narayan Mishra
  • Publication number: 20130343588
    Abstract: Sound processors and systems including sound processors are disclosed.
    Type: Application
    Filed: January 6, 2012
    Publication date: December 26, 2013
    Applicant: Advanced Bionics AG
    Inventor: Rankiri Tissa Karunasiri
  • Patent number: 8265286
    Abstract: Systems and techniques for processing signals representative of sound for conveyance to the auditory system of a subject based on the identity of an input device. In one implementation, a method includes identifying an input element to an audiological system that conveys sound information directly to a subject's auditory system, automatically setting parameters for processing the signal based on the identity of the input element, and processing the signal in accordance with the processing parameters. The input element is configured to generate a signal representative of sound.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: September 11, 2012
    Assignee: Advanced Bionics Corporation
    Inventors: Philip A. Segel, Tissa Karunasiri, Lakshmi N. Mishra
  • Patent number: 8155748
    Abstract: Apparatus and methods for converting one type of speech processor unit into another type of speech processor unit.
    Type: Grant
    Filed: October 28, 2009
    Date of Patent: April 10, 2012
    Assignee: Advanced Bionics, LLC
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold
  • Publication number: 20120041517
    Abstract: Apparatus and methods for converting one type of speech processor unit into another type of speech processor unit.
    Type: Application
    Filed: October 18, 2011
    Publication date: February 16, 2012
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold, Lakshmi Narayan Mishra
  • Patent number: 8068914
    Abstract: A case for use with a speech processor unit including a housing configured to receive the speech processor unit and a connector configured to be connected to a connector on the speech processor unit.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: November 29, 2011
    Assignee: Advanced Bionics, LLC
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold
  • Publication number: 20110116669
    Abstract: A special accessory adapter for use with a BTE device of a cochlear implant (CI) system provides two inputs: a T-Mic input and an auxiliary audio input. Both inputs (the T-Mic input and the auxiliary audio input) are connected to a special mixer circuit integrated into a body of the accessory adapter. The body of the accessory adapter connects to the BTE using the same earhook attachment mechanism used by other accessories used by the CI system. The special mixer circuit prevents signals from either the T-Mic input or the auxiliary audio input from interfering with each other. Both signals, however, can still be processed by the processing circuits of the BTE and combined in such a way that user is able to perceive both signals at the same time.
    Type: Application
    Filed: November 8, 2010
    Publication date: May 19, 2011
    Applicant: Advanced Bionics, LLC
    Inventor: R. Tissa Karunasiri
  • Patent number: 7835804
    Abstract: The accuracy of neural response recordings in neural stimulators, e.g., cochlear implants, is often degraded by a recording artifact. An idealized electrical-equivalent model of a neural stimulator is created to study, measure and compensate for artifact evoked compound action potential (eCAP). Using this model, the artifact is shown to occur even when the electrical components that make-up the neural stimulator are ideal. The model contains parasitic capacitances between the electrode wires. The model demonstrates that these small parasitic capacitances provide a current path during stimulation which can deposit charge on the electrode-tissue interfaces of the recording electrodes. The dissipation of this residual charge and the charge stored across the stimulating electrode is seen as the recording artifact. The proposed solution for eliminating the artifact problem is realized by utilizing a capacitive electrode material, e.g.
    Type: Grant
    Filed: April 11, 2007
    Date of Patent: November 16, 2010
    Assignee: Advanced Bionics, LLC
    Inventors: Gene Yevgeny Fridman, Rankiri Tissa Karunasiri
  • Patent number: 7751902
    Abstract: A push-pull amplifier efficiency provides a 4:1 (12 dB) course adjustment of power output by using a single digital control input. The amplifier is provided with an input voltage (VDD) having sixteen steps ranging from 1.25 volts to 3.00 volts. Based on the digital control, an integrated circuit switches between a high power mode and a low power mode. In the low power mode, the output voltage is equivalent to the input voltage. In the high power mode, the amplifier provides an output of twice the input voltage (or four times the power).
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: July 6, 2010
    Assignee: Advanced Bionics, LLC
    Inventor: Rankiri Tissa Karunasiri
  • Patent number: 7751899
    Abstract: A push-pull amplifier efficiency provides a 4:1 (12 dB) course adjustment of power output by using a single digital control input. The amplifier is provided with an input voltage (VDD) having sixteen steps ranging from 1.25 volts to 3.00 volts. Based on the digital control, an integrated circuit switches between a high power mode and a low power mode. In the low power mode, the output voltage is equivalent to the input voltage. In the high power mode, the amplifier provides an output of twice the input voltage (or four times the power).
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: July 6, 2010
    Assignee: Advanced Bionics, LLC
    Inventor: Rankiri Tissa Karunasiri
  • Patent number: 7630772
    Abstract: Apparatus and methods for converting one type of speech processor unit into another type of speech processor unit. A behind the ear (BTE) speech processor is converted to a body-worn device by means of a container that encloses the BTE and allows for device operations and charging. The body-worn device is worn in one embodiment on a belt of a patient.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: December 8, 2009
    Assignee: Advanced Bionics, LLC
    Inventors: Thomas Patrick Walsh, Carla Mann Woods, Richard C. Ross, Rankiri Tissa Karunasiri, Anthony K. Arnold
  • Publication number: 20090279723
    Abstract: Systems and techniques for processing signals representative of sound for conveyance to the auditory system of a subject based on the identity of an input device. In one implementation, a method includes identifying an input element to an audiological system that conveys sound information directly to a subject's auditory system, automatically setting parameters for processing the signal based on the identity of the input element, and processing the signal in accordance with the processing parameters. The input element is configured to generate a signal representative of sound.
    Type: Application
    Filed: June 25, 2009
    Publication date: November 12, 2009
    Applicant: Advanced Bionics, LLC
    Inventors: Philip A. SEGEL, Tissa KARUNASIRI, Lakshmi N. MISHRA
  • Patent number: 7599500
    Abstract: Systems and techniques for processing signals representative of sound for conveyance to the auditory system of a subject based on the identity of an input device. In one implementation, a method includes identifying an input element to an audiological system that conveys sound information directly to a subject's auditory system, automatically setting parameters for processing the signal based on the identity of the input element, and processing the signal in accordance with the processing parameters. The input element is configured to generate a signal representative of sound.
    Type: Grant
    Filed: December 9, 2004
    Date of Patent: October 6, 2009
    Assignee: Advanced Bionics, LLC
    Inventors: Philip A. Segel, Tissa Karunasiri, Lakshmi N. Mishra