Patents by Inventor David N. Fernandes

David N. Fernandes 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: 8494844
    Abstract: A computerized method and system is provided for automatically selecting from a digitized sound sample a segment of the sample that is optimal for the purpose of measuring clinical metrics for voice and speech assessment. A quality measure based on quality parameters of segments of the sound sample is applied to candidate segments to identify the highest quality segment within the sound sample. The invention can optionally provide feedback to the speaker to help the speaker increase the quality of the sound sample provided. The invention also can optionally perform sound pressure level calibration and noise calibration. The invention may optionally compute clinical metrics on the selected segment and may further include a normative database method or system for storing and analyzing clinical measurements.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: July 23, 2013
    Assignee: Human Centered Technologies, Inc.
    Inventor: David N. Fernandes
  • Publication number: 20130000765
    Abstract: A microfabricated fluidic unidirectional valve includes a microfabricated elastomer material having a flow through channel. The microfabricated fluidic unidirectional valve also includes an elastomer flap attached to the elastomer material in the flow through channel. The elastomer flap forms a seal in the flow through channel to prevent fluid from flowing in a first direction through the flow through channel and to allow fluid flow in a second direction through the flow through channel.
    Type: Application
    Filed: December 27, 2011
    Publication date: January 3, 2013
    Applicant: Fluidigm Corporation
    Inventors: David N. Fernandes, Hou-Pu Chou, Marc A. Unger
  • Publication number: 20100153101
    Abstract: A computerized method and system is provided for automatically selecting from a digitized sound sample a segment of the sample that is optimal for the purpose of measuring clinical metrics for voice and speech assessment. A quality measure based on quality parameters of segments of the sound sample is applied to candidate segments to identify the highest quality segment within the sound sample. The invention can optionally provide feedback to the speaker to help the speaker increase the quality of the sound sample provided. The invention also can optionally perform sound pressure level calibration and noise calibration. The invention may optionally compute clinical metrics on the selected segment and may further include a normative database method or system for storing and analyzing clinical measurements.
    Type: Application
    Filed: November 19, 2009
    Publication date: June 17, 2010
    Inventor: David N. Fernandes
  • Publication number: 20090307269
    Abstract: A computerized system and method is provided for managing normative data for metrics and comparing those normative data with metric values for a subject. The normative database provides a means for storing and utilizing normative data from multiple studies and the system automatically determines, or optionally allows a user to determine, which studies will be used in the comparison. The system also optionally allows a user to modify normative data in the normative database or add normative data to the normative database. The system generates images showing the relationship of the metric values to the normative data, optionally utilizing one or more thresholds extracted from the database or provided by the user.
    Type: Application
    Filed: March 6, 2009
    Publication date: December 10, 2009
    Inventor: David N. Fernandes
  • Publication number: 20080257437
    Abstract: Microfabricated fluidic devices of the present invention include switches that can be opened and closed to allow or block the flow of fluid through a channel in response to the pressure level in a gate of the switch. The microfabricated fluidic switches may be coupled together to perform logic functions and Boolean algebra, such as inverters, AND gates, NAND, gates, NOR gates, and OR gates. The logic gates may be coupled together to form flip-flops that latch signals. The present invention also includes microfabricated fluidic pressure multipliers that increase the pressure in a second chamber relative to a first chamber. Microfabricated fluidic devices of the present invention also include high or low pressure sources. A pressure source of the present includes a pump coupled to a reservoir through unidirectional valves. Microfabricated fluidic devices of the present invention may also include devices that perform analog functions such as switching regulator.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 23, 2008
    Applicant: Fluidigm Corporation
    Inventors: David N. Fernandes, Hou-Pu Chou, Marc A. Unger
  • Patent number: 6953058
    Abstract: The present invention provides microfabricated fluidic systems and methods. Microfabricated fluidic devices of the present invention include switches that can be opened and closed to allow or block the flow of fluid through a channel in response to the pressure level in a gate of the switch. The microfabricated fluidic switches may be coupled together to perform logic functions and Boolean algebra, such as inverters, AND gates, NAND, gates, NOR gates, and OR gates. The logic gates may be coupled together to form flip-flops that latch signals. The present invention also includes microfabricated fluidic pressure multipliers that increase the pressure in a second chamber relative to a first chamber. Microfabricated fluidic devices of the present invention also include pressure sources. A pressure source of the present includes a pump coupled to a reservoir through unidirectional valves. The pressure source may be high pressure source or a low pressure source.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: October 11, 2005
    Assignee: Fluidigm Corporation
    Inventors: David N. Fernandes, Hou-Pu Chou, Marc A. Unger
  • Patent number: 6802342
    Abstract: The present invention provides microfabricated fluidic systems and methods. Microfabricated fluidic devices of the present invention include switches that can be opened and closed to allow or block the flow of fluid through a channel in response to the pressure level in a gate of the switch. The microfabricated fluidic switches may be coupled together to perform logic functions and Boolean algebra, such as inverters, AND gates, NAND, gates, NOR gates, and OR gates. The logic gates may be coupled together to form flip-flops that latch signals. The present invention also includes microfabricated fluidic pressure multipliers that increase the pressure in a second chamber relative to a first chamber. Microfabricated fluidic devices of the present invention also include pressure sources. A pressure source of the present includes a pump coupled to a reservoir through unidirectional valves. The pressure source may be high pressure source or a low pressure source.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: October 12, 2004
    Assignee: Fluidigm Corporation
    Inventors: David N. Fernandes, Hou-Pu Chou, Marc A. Unger
  • Publication number: 20020195152
    Abstract: The present invention provides microfabricated fluidic systems and methods. Microfabricated fluidic devices of the present invention include switches that can be opened and closed to allow or block the flow of fluid through a channel in response to the pressure level in a gate of the switch. The microfabricated fluidic switches may be coupled together to perform logic functions and Boolean algebra, such as inverters, AND gates, NAND, gates, NOR gates, and OR gates. The logic gates may be coupled together to form flip-flops that latch signals. The present invention also includes microfabricated fluidic pressure multipliers that increase the pressure in a second chamber relative to a first chamber. Microfabricated fluidic devices of the present invention also include pressure sources. A pressure source of the present includes a pump coupled to a reservoir through unidirectional valves. The pressure source may be high pressure source or a low pressure source.
    Type: Application
    Filed: November 26, 2001
    Publication date: December 26, 2002
    Applicant: Fluidigm Corporation
    Inventors: David N. Fernandes, Hou-Pu Chou, Marc A. Unger