Patents by Inventor Tobe Barksdale
Tobe Barksdale 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: 9078077Abstract: An approach to forming output signals both permits flexible and temporally and/or frequency local processing of input signals while limiting or mitigating artifacts in such output signals. Generally, the approach involves first synthesizing prototype signals for the output signals, or equivalently characterizing such prototypes, for example, according to their statistical characteristics, and then forming the output signals as estimates of the prototype signals, for example, as weighted combinations of the input signals.Type: GrantFiled: October 21, 2011Date of Patent: July 7, 2015Assignee: Bose CorporationInventors: Paul B. Hultz, Tobe Barksdale, Michael Dublin, Luke C. Walters
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Publication number: 20140334637Abstract: An automobile audio system having at least two near-field speakers located close to an intended position of a listener's head is configured by determining a first binaural filter that causes sound produced by each of the near-field speakers to have characteristics at the intended position of the listener's head of sound produced by a sound source located at a first designated position other than the actual locations of the near-field speakers, determining an up-mixing rule to generate at least three component channel signals from an input audio signal having at least two channels, and configuring the audio system to, determine a first binaural signal corresponding to a combination of the component channel signals originating at the first designated position, and filter the first binaural signal using the first binaural filter and to output the filtered signals using the near-field speakers.Type: ApplicationFiled: May 7, 2013Publication date: November 13, 2014Inventors: Charles Oswald, Michael Dublin, Tobe Barksdale, Wontak Kim, Jahn Dmitri Eichfeld
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Patent number: 8325931Abstract: A detecting circuit measures at least one response characteristic of an output channel in an electro-acoustic transducer system. A memory stores a plurality of equalizations, each equalization corresponding to a known electro-acoustic transducer system associated with at least one response characteristic stored in the memory. A processor in communication with the detecting circuit and the memory selects one of the stored response characteristics matching the response characteristic measured by the detecting circuit. In some cases, an appropriate equalization is loaded based on the selected response characteristic.Type: GrantFiled: May 2, 2008Date of Patent: December 4, 2012Assignee: Bose CorporationInventors: Damian Howard, Marc L. Mansell, Tobe Barksdale, Hal P. Greenberger, Matthew R. Hicks
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Publication number: 20120246678Abstract: A graphical user interface control for a home entertainment system. The distance between a user and a display is determined. The informational content of the graphical user interface and the size of the text and graphic images shown on the display are scaled based on the distance of the user from the display.Type: ApplicationFiled: March 24, 2011Publication date: September 27, 2012Inventor: Tobe Barksdale
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Publication number: 20120099739Abstract: An approach to forming output signals both permits flexible and temporally and/or frequency local processing of input signals while limiting or mitigating artifacts in such output signals. Generally, the approach involves first synthesizing prototype signals for the output signals, or equivalently characterizing such prototypes, for example, according to their statistical characteristics, and then forming the output signals as estimates of the prototype signals, for example, as weighted combinations of the input signals.Type: ApplicationFiled: October 21, 2011Publication date: April 26, 2012Applicant: Bose CorporationInventors: Paul B. Hultz, Tobe Barksdale, Michael Dublin, Luke C. Walters
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Publication number: 20090274312Abstract: A detecting circuit measures at least one response characteristic of an output channel in an electro-acoustic transducer system. A memory stores a plurality of equalizations, each equalization corresponding to a known electro-acoustic transducer system associated with at least one response characteristic stored in the memory. A processor in communication with the detecting circuit and the memory selects one of the stored response characteristics matching the response characteristic measured by the detecting circuit. In some cases, an appropriate equalization is loaded based on the selected response characteristic.Type: ApplicationFiled: May 2, 2008Publication date: November 5, 2009Inventors: Damian Howard, Marc L. Mansell, Tobe Barksdale, Hal P. Greenberger, Matthew R. Hicks
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Patent number: 7418033Abstract: Demodulation apparatus includes a transversal filter characterized by coefficients adjusted by a coefficient determiner responsive to a constant modulus error signal and variable mode error signal related to the output of a spectral mean frequency detector having its input coupled to the output of the transversal filter.Type: GrantFiled: March 10, 2006Date of Patent: August 26, 2008Assignee: Bose CorporationInventor: Tobe Barksdale
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Patent number: 7330068Abstract: Demodulation apparatus includes a transversal filter characterized by coefficients adjusted by a coefficient determiner responsive to a constant modulus error signal and variable mode error signal related to the output of a spectral mean frequency detector having its input coupled to the output of the transversal filter.Type: GrantFiled: April 16, 2002Date of Patent: February 12, 2008Assignee: Bose CorporationInventor: Tobe Barksdale
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Patent number: 7305097Abstract: Systems and techniques for controlling a surround sound system having multiple input signals and multiple spatially diverse transducers may include defining a first control region and a second control region. When operating in the first control region, a first set of functions is performed. For example, for each of the spatially diverse transducers, an input signal may be selected, a relative strength of the selected input signal may be adjusted, and the adjusted input signal may be applied to the transducer. When operating in the second control region, a second set of functions is performed. For example, for each of the spatially diverse transducers, two or more input signals may be selected, a relative strength of the selected input signals may be adjusted, the adjusted input signals may be mixed, and the mixed input signals may be applied to the transducer.Type: GrantFiled: February 14, 2003Date of Patent: December 4, 2007Assignee: Bose CorporationInventors: Michael D. Rosen, Tobe Barksdale, Christopher Ludwig
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Publication number: 20060152276Abstract: Demodulation apparatus includes a transversal filter characterized by coefficients adjusted by a coefficient determiner responsive to a constant modulus error signal and variable mode error signal related to the output of a spectral mean frequency detector having its input coupled to the output of the transversal filter.Type: ApplicationFiled: March 10, 2006Publication date: July 13, 2006Inventor: Tobe Barksdale
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Publication number: 20050185806Abstract: Preserving an audio signal in an audio system includes selecting a first audio signal from a plurality of audio signals. The first audio signal is applied to a first transducer. Mix a portion of the first audio signal with a second audio signal from the plurality of audio signals to provide a mixed audio signal. A gain of the first audio signal that is applied to the first transducer is decreased while a portion of the mixed audio signal is applied to a second transducer to preserve at least a portion of the first audio signal.Type: ApplicationFiled: March 4, 2005Publication date: August 25, 2005Inventors: Eduardo Salvador, Tobe Barksdale
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Publication number: 20040161126Abstract: Systems and techniques for controlling a surround sound system having multiple input signals and multiple spatially diverse transducers may include defining a first control region and a second control region. When operating in the first control region, a first set of functions is performed. For example, for each of the spatially diverse transducers, an input signal may be selected, a relative strength of the selected input signal may be adjusted, and the adjusted input signal may be applied to the transducer. When operating in the second control region, a second set of functions is performed. For example, for each of the spatially diverse transducers, two or more input signals may be selected, a relative strength of the selected input signals may be adjusted, the adjusted input signals may be mixed, and the mixed input signals may be applied to the transducer.Type: ApplicationFiled: February 14, 2003Publication date: August 19, 2004Inventors: Michael D. Rosen, Tobe Barksdale, Christopher Ludwig
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Publication number: 20030193366Abstract: Demodulation apparatus includes a transversal filter characterized by coefficients adjusted by a coefficient determiner responsive to a constant modulus error signal and variable mode error signal related to the output of a spectral mean frequency detector having its input coupled to the output of the transversal filter.Type: ApplicationFiled: April 16, 2002Publication date: October 16, 2003Inventor: Tobe Barksdale