Patents by Inventor Srinivas Chari
Srinivas Chari 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).
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Patent number: 8917892Abstract: A method for adjusting a hearing instrument to reduce feedback by placing a hearing instrument having an adjustable frequency response in a wearer's ear, providing a probe microphone for measuring the sound pressure level inside the ear and a reference microphone for measuring the sound pressure level outside the ear, exposing the ear to a stimulus and a dynamic event, determining the gain as a function of frequency from the difference in sound pressure level measured by the probe microphone and the reference microphone, identifying a feedback peak where the frequency is in the center of a range of frequencies and corresponds to the maximum gain in that range of frequencies and adjusting the hearing instrument to reduce the gain at a frequency corresponding to the frequency of the feedback peak.Type: GrantFiled: February 10, 2012Date of Patent: December 23, 2014Inventors: Michael L. Poe, Anthony Quick, Srinivas Chari, Don E. K. Campbell
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Publication number: 20120140937Abstract: A method for adjusting a hearing instrument to reduce feedback by placing a hearing instrument having an adjustable frequency response in a wearer's ear, providing a probe microphone for measuring the sound pressure level inside the ear and a reference microphone for measuring the sound pressure level outside the ear, exposing the ear to a stimulus and a dynamic event, determining the gain as a function of frequency from the difference in sound pressure level measured by the probe microphone and the reference microphone, identifying a feedback peak where the frequency is in the center of a range of frequencies and corresponds to the maximum gain in that range of frequencies and adjusting the hearing instrument to reduce the gain at a frequency corresponding to the frequency of the feedback peak.Type: ApplicationFiled: February 10, 2012Publication date: June 7, 2012Applicant: Magnatone Hearing Aid CorporationInventors: Michael L. Poe, Anthony Quick, Srinivas Chari, Don E.K. Campbell
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Patent number: 7877416Abstract: The present invention provides a methodology for truncating a logical structure having data matching a predefined pattern. For example, the present invention truncates a logical structure so that branches of the structure are automatically ceased at a recursive ancestor instead of at a descendant. By using the methodology of the present invention, the total number of nodes of the logical structure that will be automatically displayed for a user is represented by the formula N*N+1. Thus, when N=10, the total number of nodes that are automatically displayed for the user is 101. This quantity is far more user friendly than the 9,864,101 nodes that would be displayed when N=10 under previous approaches.Type: GrantFiled: May 9, 2008Date of Patent: January 25, 2011Assignee: International Business Machines CorporationInventors: Srinivas Chari, Crystal J. Su
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Patent number: 7512937Abstract: A method deploys a set of coupled data transformation modules describing a data transformation, the data transformation for transforming a data structure from a first format to a second format. The method includes receiving an instruction for selecting the set of transformation modules from a memory; converting each of the set of transformation modules to a common model format, the set of modules having at least one transformation module being of a module type of a type set including language constructed modules and visually constructed modules; and generating an executable version of the converted transformation modules suitable for execution by a data transformation engine. The executable version, when executed, transforms the data structure from the first format to the second format.Type: GrantFiled: January 8, 2004Date of Patent: March 31, 2009Assignee: International Business Machines CorporationInventors: Srinivas Chari, Crystal Su, Milorad Stefanovic, Dirk Alexander Seelemann, II
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Publication number: 20080298600Abstract: A method for fitting a hearing instrument comprises placing the hearing instrument in situ includes receiving an audiogram of the user, determining a target gain for the hearing instrument as a function of the audiogram, exposing a reference sensor located adjacent the hearing instrument to an external speech signal, measuring an external sound pressure level (SPL) via the reference sensor, exposing a probe sensor coupled to the inside of the ear to the output of the hearing instrument while the hearing instrument is in situ, measuring an internal sound pressure level (“SPL”) inside the ear of the user via the probe sensor, determining an offset gain as a function of the external SPL, the target gain and the internal SPL, and automatically adjusting a gain of the hearing instrument according to the offset gain.Type: ApplicationFiled: April 21, 2008Publication date: December 4, 2008Inventors: Michael Poe, Anthony Quick, Srinivas Chari, Don E.K. Campbell
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Publication number: 20080288514Abstract: The present invention provides a methodology for truncating a logical structure having data matching a predefined pattern. For example, the present invention truncates a logical structure so that branches of the structure are automatically ceased at a recursive ancestor instead of at a descendant. By using the methodology of the present invention, the total number of nodes of the logical structure that will be automatically displayed for a user is represented by the formula N*N+1. Thus, when N=10, the total number of nodes that are automatically displayed for the user is 101. This quantity is far more user friendly than the 9,864,101 nodes that would be displayed when N=10 under previous approaches.Type: ApplicationFiled: May 9, 2008Publication date: November 20, 2008Inventors: Srinivas Chari, Crystal J. Su
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Patent number: 7389296Abstract: The present invention provides a methodology for truncating a logical structure having data matching a predefined pattern. For example, the present invention truncates a logical structure so that branches of the structure are automatically ceased at a recursive ancestor instead of at a descendant. By using the methodology of the present invention, the total number of nodes of the logical structure that is automatically displayed for a user is represented by the formula N*N+1. Thus, when N=10, the total number of nodes that are automatically displayed for the user is 101. This quantity is far more user friendly than the 9,864,101 nodes that would be displayed when N=10 under previous approaches.Type: GrantFiled: September 2, 2004Date of Patent: June 17, 2008Assignee: International Business Machines CorporationInventors: Srinivas Chari, Crystal J. Su
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Patent number: 7182820Abstract: Methods and apparatus for cleaning hearing aid devices are disclosed. Drying is facilitated in hearing instruments through a novel combination of heater and desiccant in an essentially closed system. Greater efficiency is obtained by minimizing the volume of gas, e.g., air, requiring moisture extraction.Type: GrantFiled: April 17, 2003Date of Patent: February 27, 2007Assignee: Magnatone Hearing Aid CorporationInventors: Don E. K. Campbell, Srinivas Chari
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Publication number: 20060047688Abstract: The present invention provides a methodology for truncating a logical structure having data matching a predefined pattern. For example, the present invention truncates a logical structure so that branches of the structure are automatically ceased at a recursive ancestor instead of at a descendant. By using the methodology of the present invention, the total number of nodes of the logical structure that is automatically displayed for a user is represented by the formula N*N+1. Thus, when N=10, the total number of nodes that are automatically displayed for the user is 101. This quantity is far more user friendly than the 9,864,101 nodes that would be displayed when N=10 under previous approaches.Type: ApplicationFiled: September 2, 2004Publication date: March 2, 2006Applicant: International Business Machines CorporationInventors: Srinivas Chari, Crystal Su
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Publication number: 20050138222Abstract: There is provided a method and system for developing a transformation program to transform a data structure from a first format to a second format, the program including a plurality of coupled data transformation modules describing the transformation, the method comprising the steps of: generating a first transformation module of the plurality of transformation modules for assembling the program, the first module being a module type of a set of module types including a language constructed module type and a visually constructed module type; extracting reference information from the first module for accessing the first module when stored in a memory; and updating a module registry to include a first entry corresponding to the reference information of the first module, the module registry configured for having reference information entries extracted from both the language constructed modules and visually constructed modules.Type: ApplicationFiled: January 8, 2004Publication date: June 23, 2005Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Srinivas Chari, Crystal Su, Milorad Stefanovic, Dirk Seelemann
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Publication number: 20050137852Abstract: There is provided a system and method for deploying a set of coupled data transformation modules describing a data transformation, the data transformation for transforming a data structure from a first format to a second format, the method including the steps of receiving an instruction for selecting the set of transformation modules from a memory; converting each of the set of transformation modules to a common model format, the set of modules having at least one transformation module being of a module type of a type set including language constructed modules and visually constructed modules; and generating an executable version of the converted transformation modules suitable for execution by a data transformation engine; wherein the executable version when executed transforms the data structure from the first format to the second format.Type: ApplicationFiled: January 8, 2004Publication date: June 23, 2005Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Srinivas Chari, Crystal Su, Milorad Stefanovic, Dirk Seelemann
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Publication number: 20030196687Abstract: Methods and apparatus for cleaning hearing aid devices are disclosed. Drying is facilitated in hearing instruments through a novel combination of heater and desiccant in an essentially closed system. Greater efficiency is obtained by minimizing the volume of gas, e.g., air, requiring moisture extraction.Type: ApplicationFiled: April 17, 2003Publication date: October 23, 2003Applicant: MAGNATONE HEARING AID CORPORATIONInventors: Don E.K. CAMPBELL, Srinivas CHARI
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Patent number: 5098297Abstract: A composition for the rapid desensitization of dentin and a system for its application, comprising a subsaturated aqueous solution of monopotassium monohydrogen oxalate and a disposable single-use applicator/dispenser apparatus. The apparatus includes a crushable ampule containing the desensitizing solution housed in a flexible body, with a filter which retains ample fragments but allow the solution to flow to and saturate an applicator tip or swab. The applicator may be used to treat the teeth directly, or the swab may be removed from the applicator after saturation and placed on hard-to-reach dentinal surfaces. In one embodiment, the apparatus further includes a dispensing package containing a plurality of the single-use applicators and provided with a magnetic means affixed thereto for securing the package to convenient metallic surfaces. Another embodiment includes a blister dispensing package comprising a plurality of detachable sheets which stores the applictors.Type: GrantFiled: April 23, 1990Date of Patent: March 24, 1992Assignee: John O. Butler CompanyInventors: Srinivas Chari, Dennis Groat