Patents by Inventor John Sheerin
John Sheerin 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: 9699582Abstract: A self calibrating dipole microphone formed from two omni-directional acoustic sensors. The microphone includes a sound source acoustically coupled to the acoustic sensors and a processor. The sound source is excited with a test signal, exposing the acoustic sensors to acoustic calibration signals. The responses of the acoustic sensors to the calibration signals are compared by the processor, and one or more correction factors determined. Digital filter coefficients are calculated based on the one or more correction factors, and applied to the output signals of the acoustic sensors to compensate for differences in the sensitivities of the acoustic sensors. The filtered signals provide acoustic sensor outputs having matching responses, which are subtractively combined to form the dipole microphone output.Type: GrantFiled: August 26, 2014Date of Patent: July 4, 2017Assignee: VOCOLLECT, Inc.Inventors: John Sheerin, Richard Sharbaugh, Matthew Shope
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Publication number: 20140369511Abstract: A self calibrating dipole microphone formed from two omni-directional acoustic sensors. The microphone includes a sound source acoustically coupled to the acoustic sensors and a processor. The sound source is excited with a test signal, exposing the acoustic sensors to acoustic calibration signals. The responses of the acoustic sensors to the calibration signals are compared by the processor, and one or more correction factors determined. Digital filter coefficients are calculated based on the one or more correction factors, and applied to the output signals of the acoustic sensors to compensate for differences in the sensitivities of the acoustic sensors. The filtered signals provide acoustic sensor outputs having matching responses, which are subtractively combined to form the dipole microphone output.Type: ApplicationFiled: August 26, 2014Publication date: December 18, 2014Inventors: John Sheerin, Rich Sharbaugh, Matthew Shope
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Patent number: 8824692Abstract: A self calibrating dipole microphone formed from two omni-directional acoustic sensors. The microphone includes a sound source acoustically coupled to the acoustic sensors and a processor. The sound source is excited with a test signal, exposing the acoustic sensors to acoustic calibration signals. The responses of the acoustic sensors to the calibration signals are compared by the processor, and one or more correction factors determined. Digital filter coefficients are calculated based on the one or more correction factors, and applied to the output signals of the acoustic sensors to compensate for differences in the sensitivities of the acoustic sensors. The filtered signals provide acoustic sensor outputs having matching responses, which are subtractively combined to form the dipole microphone output.Type: GrantFiled: April 20, 2011Date of Patent: September 2, 2014Assignee: VOCOLLECT, Inc.Inventors: John Sheerin, Rich Sharbaugh, Matthew Shope
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Patent number: 8672088Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.Type: GrantFiled: March 28, 2013Date of Patent: March 18, 2014Assignee: Harman International Industries, Inc.Inventors: Brian Sterling, John Sheerin, Douglas Hogue, Peter Premo
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Publication number: 20130228393Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.Type: ApplicationFiled: March 28, 2013Publication date: September 5, 2013Applicant: Harman International Industries, IncorporatedInventors: Brian Sterling, John Sheerin, Douglas Hogue, Peter Premo
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Patent number: 8418802Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.Type: GrantFiled: May 3, 2012Date of Patent: April 16, 2013Assignee: Harman International Industries, IncorporatedInventors: Brian Sterling, John Sheerin, Douglas Hogue, Peter Premo
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Publication number: 20120279797Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.Type: ApplicationFiled: May 3, 2012Publication date: November 8, 2012Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventors: Brian Sterling, John Sheerin, Douglas Hogue, Peter Premo
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Publication number: 20120269356Abstract: A self calibrating dipole microphone formed from two omni-directional acoustic sensors. The microphone includes a sound source acoustically coupled to the acoustic sensors and a processor. The sound source is excited with a test signal, exposing the acoustic sensors to acoustic calibration signals. The responses of the acoustic sensors to the calibration signals are compared by the processor, and one or more correction factors determined. Digital filter coefficients are calculated based on the one or more correction factors, and applied to the output signals of the acoustic sensors to compensate for differences in the sensitivities of the acoustic sensors. The filtered signals provide acoustic sensor outputs having matching responses, which are subtractively combined to form the dipole microphone output.Type: ApplicationFiled: April 20, 2011Publication date: October 25, 2012Applicant: VOCOLLECT, INC.Inventors: John Sheerin, Rich Sharbaugh, Matthew Shope
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Patent number: 8181736Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.Type: GrantFiled: August 14, 2009Date of Patent: May 22, 2012Assignee: Harman International Industries, IncorporatedInventors: Brian Sterling, John Sheerin, Douglas Hogue, Peter Premo
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Publication number: 20110168480Abstract: A phase plugs or acoustic lens improves the directional audio performance of a loudspeaker. Application of the improved directional audio performance to a sound system in a listening area may improve the performance of the audio system. Configuration of the acoustic lens or phase plug may include both symmetrical and asymmetrical features to provide an improved frequency response and directivity. The improved loudspeaker may provide improved an improved listing location, for example, in a vehicle.Type: ApplicationFiled: August 14, 2009Publication date: July 14, 2011Applicant: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATEDInventors: Brian Sterling, John Sheerin, Douglas Hogue, Peter Premo