Patents by Inventor Jason Weigold
Jason Weigold 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: 9002036Abstract: A microphone system has a primary microphone for producing a primary signal, a secondary microphone for producing a secondary signal, and a selector operatively coupled with both the primary microphone and the secondary microphone. The system also has an output for delivering an output audible signal principally produced by one of the to microphones. The selector selectively permits either 1) at least a portion of the primary signal and/or 2) at least a portion of the secondary signal to be forwarded to the output as a function of the noise in the primary signal.Type: GrantFiled: April 24, 2012Date of Patent: April 7, 2015Assignee: Invensense, Inc.Inventors: Kieran P. Harney, Jason Weigold, Gary Elko
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Patent number: 8351632Abstract: A microphone system has a base coupled with first and second microphone apparatuses. The first microphone apparatus is capable of producing a first output signal having a noise component, while the second microphone apparatus is capable of producing a second output signal. The first microphone apparatus may have a first back-side cavity and the second microphone may have a second back-side cavity. The first and second back-side cavities may be fluidly unconnected. The system also has combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus. The combining logic uses the second output signal to remove at least a portion of the noise component from the first output signal.Type: GrantFiled: August 24, 2009Date of Patent: January 8, 2013Assignee: Analog Devices, Inc.Inventors: Kieran P. Harney, Jason Weigold, Gary Elko
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Patent number: 8270634Abstract: A microphone system has a primary microphone for producing a primary signal, a secondary microphone for producing a secondary signal, and a selector operatively coupled with both the primary microphone and the secondary microphone. The system also has an output for delivering an output audible signal principally produced by one of the to microphones. The selector selectively permits either 1) at least a portion of the primary signal and/or 2) at least a portion of the secondary signal to be forwarded to the output as a function of the noise in the primary signal.Type: GrantFiled: July 25, 2007Date of Patent: September 18, 2012Assignee: Analog Devices, Inc.Inventors: Kieran P. Harney, Jason Weigold, Gary Elko
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Publication number: 20120207324Abstract: A microphone system has a primary microphone for producing a primary signal, a secondary microphone for producing a secondary signal, and a selector operatively coupled with both the primary microphone and the secondary microphone. The system also has an output for delivering an output audible signal principally produced by one of the to microphones. The selector selectively permits either 1) at least a portion of the primary signal and/or 2) at least a portion of the secondary signal to be forwarded to the output as a function of the noise in the primary signal.Type: ApplicationFiled: April 24, 2012Publication date: August 16, 2012Applicant: ANALOG DEVICES, INC.Inventors: Kieran P. Harney, Jason Weigold, Gary Elko
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Patent number: 8130979Abstract: A microphone system has a base coupled with first and second microphone apparatuses. The first microphone apparatus is capable of producing a first output signal having a noise component, while the second microphone apparatus is capable of producing a second output signal. The system also has combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus. The combining logic uses the second output signal to remove at least a portion of the noise component from the first output signal.Type: GrantFiled: July 25, 2006Date of Patent: March 6, 2012Assignee: Analog Devices, Inc.Inventors: Kieran P. Harney, Jason Weigold, Gary Elko
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Patent number: 8129803Abstract: A micromachined microphone is formed from a silicon or silicon-on-insulator (SOI) wafer. A fixed sensing electrode for the microphone is formed from a top silicon layer of the wafer. Various polysilicon microphone structures are formed above a front side of the top silicon layer by depositing at least one oxide layer, forming the structures, and then removing a portion of the oxide underlying the structures from a back side of the top silicon layer through trenches formed through the top silicon layer. The trenches allow sound waves to reach the diaphragm from the back side of the top silicon layer. In an SOI wafer, a cavity is formed through a bottom silicon layer and an intermediate oxide layer to expose the trenches for both removing the oxide and allowing the sound waves to reach the diaphragm. An inertial sensor may be formed on the same wafer, with various inertial sensor structures formed at substantially the same time and using substantially the same processes as corresponding microphone structures.Type: GrantFiled: July 16, 2010Date of Patent: March 6, 2012Assignee: Analog Devices, Inc.Inventors: John R. Martin, Timothy J. Brosnihan, Craig Core, Thomas Kieran Nunan, Jason Weigold, Xin Zhang
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Publication number: 20100285628Abstract: A micromachined microphone is formed from a silicon or silicon-on-insulator (SOI) wafer. A fixed sensing electrode for the microphone is formed from a top silicon layer of the wafer. Various polysilicon microphone structures are formed above a front side of the top silicon layer by depositing at least one oxide layer, forming the structures, and then removing a portion of the oxide underlying the structures from a back side of the top silicon layer through trenches formed through the top silicon layer. The trenches allow sound waves to reach the diaphragm from the back side of the top silicon layer. In an SOI wafer, a cavity is formed through a bottom silicon layer and an intermediate oxide layer to expose the trenches for both removing the oxide and allowing the sound waves to reach the diaphragm. An inertial sensor may be formed on the same wafer, with various inertial sensor structures formed at substantially the same time and using substantially the same processes as corresponding microphone structures.Type: ApplicationFiled: July 16, 2010Publication date: November 11, 2010Applicant: Analog Devices, Inc.Inventors: John R. Martin, Timothy J. Brosnihan, Craig Core, Thomas Kieran Nunan, Jason Weigold, Xin Zhang
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Patent number: 7825484Abstract: A micromachined microphone is formed from a silicon or silicon-on-insulator (SOI) wafer. A fixed sensing electrode for the microphone is formed from a top silicon layer of the wafer. Various polysilicon microphone structures are formed above a front side of the top silicon layer by depositing at least one oxide layer, forming the structures, and then removing a portion of the oxide underlying the structures from a back side of the top silicon layer through trenches formed through the top silicon layer. The trenches allow sound waves to reach the diaphragm from the back side of the top silicon layer. In an SOI wafer, a cavity is formed through a bottom silicon layer and an intermediate oxide layer to expose the trenches for both removing the oxide and allowing the sound waves to reach the diaphragm. An inertial sensor may be formed on the same wafer, with various inertial sensor structures formed at substantially the same time and using substantially the same processes as corresponding microphone structures.Type: GrantFiled: April 25, 2005Date of Patent: November 2, 2010Assignee: Analog Devices, Inc.Inventors: John R. Martin, Timothy J. Brosnihan, Craig Core, Thomas Kieran Nunan, Jason Weigold, Xin Zhang
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Publication number: 20100054495Abstract: A microphone system has a base coupled with first and second microphone apparatuses. The first microphone apparatus is capable of producing a first output signal having a noise component, while the second microphone apparatus is capable of producing a second output signal. The first microphone apparatus may have a first back-side cavity and the second microphone may have a second back-side cavity. The first and second back-side cavities may be fluidly unconnected. The system also has combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus. The combining logic uses the second output signal to remove at least a portion of the noise component from the first output signal.Type: ApplicationFiled: August 24, 2009Publication date: March 4, 2010Applicant: ANALOG DEVICES, INC.Inventors: Kieran P. Harney, Jason Weigold, Gary Elko
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Publication number: 20080049953Abstract: A microphone system has a primary microphone for producing a primary signal, a secondary microphone for producing a secondary signal, and a selector operatively coupled with both the primary microphone and the secondary microphone. The system also has an output for delivering an output audible signal principally produced by one of the to microphones. The selector selectively permits either 1) at least a portion of the primary signal and/or 2) at least a portion of the secondary signal to be forwarded to the output as a function of the noise in the primary signal.Type: ApplicationFiled: July 25, 2007Publication date: February 28, 2008Applicant: ANALOG DEVICES, INC.Inventors: Kieran Harney, Jason Weigold, Gary Elko
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Publication number: 20070165888Abstract: A microphone includes a diaphragm assembly supported by a substrate. The diaphragm assembly includes at least one carrier, a diaphragm, and at least one spring coupling the diaphragm to the at least one carrier such that the diaphragm is spaced from the at least one carrier. An insulator (or separate insulators) between the substrate and the at least one carrier electrically isolates the diaphragm and the substrate.Type: ApplicationFiled: January 22, 2007Publication date: July 19, 2007Applicant: ANALOG DEVICES, INC.Inventor: Jason Weigold
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Publication number: 20070092983Abstract: A method of forming a microphone forms a backplate, and a flexible diaphragm on at least a portion of a wet etch removable sacrificial layer. The method adds a wet etch resistant material, where a portion of the wet etch resistant material is positioned between the diaphragm and the backplate to support the diaphragm. Some of the wet etch resistant material is not positioned between the diaphragm and backplate. The method then removes the sacrificial material before removing any of the wet etch resistant material added during the prior noted act of adding. The wet etch resistant material then is removed substantially in its entirety after removing at least part of the sacrificial material.Type: ApplicationFiled: December 19, 2006Publication date: April 26, 2007Applicant: ANALOG DEVICES, INC.Inventor: Jason Weigold
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Publication number: 20070087466Abstract: A method of forming a microphone having a variable capacitance first deposits high temperature deposition material on a die. The high temperature material ultimately forms structure that contributes to the variable capacitance. The method then forms circuitry on the die after depositing the deposition material. The circuitry is configured to detect the variable capacitance.Type: ApplicationFiled: September 27, 2006Publication date: April 19, 2007Applicant: ANALOG DEVICES, INC.Inventors: Jason Weigold, John Martin, Timothy Brosnihan
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Publication number: 20070072327Abstract: A method of producing an integrated MEMS resonator includes providing a substrate including single crystal silicon and partially forming a resonator in a first portion of the substrate, the resonator having a resonating element formed by the substrate and an electrode, the resonating element and the electrode forming a variable capacitor. The method also includes forming circuitry in a second portion of the substrate, the circuitry configured for detecting capacitance of the variable capacitor and finish forming the resonator and integrating the resonator with the circuitry so that the electrode is in communication with the circuitry.Type: ApplicationFiled: September 27, 2006Publication date: March 29, 2007Applicant: ANALOG DEVICES, INC.Inventor: Jason Weigold
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Publication number: 20070070821Abstract: A MEMS resonator has an outer element having an inner surface, the inner surface defining an area and a inner element coupled to the outer element and disposed within the area. The MEMS resonator also has an actuation electrode, in communication with the outer element, for generating electrostatic signals that cause the inner element to flex in a periodic manner.Type: ApplicationFiled: September 27, 2006Publication date: March 29, 2007Applicant: ANALOG DEVICES, INC.Inventor: Jason Weigold
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Publication number: 20070064968Abstract: A microphone is formed to have a diaphragm that is configured to improve signal to noise ratio. To that end, the microphone has a backplate having a hole therethrough, and a diaphragm movably coupled with the backplate. The diaphragm has a bottom surface (facing the backplate) with a convex portion aligned with the hole in the backplate.Type: ApplicationFiled: June 28, 2006Publication date: March 22, 2007Applicant: Analog Devices, Inc.Inventor: Jason Weigold
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Publication number: 20070047744Abstract: A microphone system has a base coupled with first and second microphone apparatuses. The first microphone apparatus is capable of producing a first output signal having a noise component, while the second microphone apparatus is capable of producing a second output signal. The system also has combining logic operatively coupled with the first microphone apparatus and the second microphone apparatus. The combining logic uses the second output signal to remove at least a portion of the noise component from the first output signal.Type: ApplicationFiled: July 25, 2006Publication date: March 1, 2007Inventors: Kieran Harney, Jason Weigold, Gary Elko
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Publication number: 20070047746Abstract: A microphone system implements multiple microphones on a single base. To that end, the microphone system has a base, and a plurality of substantially independently movable diaphragms secured to the base. Each of the plurality of diaphragms forms a variable capacitance with the base and thus, each diaphragm effectively forms a generally independent, separate microphone with the base.Type: ApplicationFiled: August 23, 2006Publication date: March 1, 2007Applicant: ANALOG DEVICES, INC.Inventors: Jason Weigold, Kieran Harney
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Publication number: 20060237806Abstract: A micromachined microphone is formed from a silicon or silicon-on-insulator (SOI) wafer. A fixed sensing electrode for the microphone is formed from a top silicon layer of the wafer. Various polysilicon microphone structures are formed above a front side of the top silicon layer by depositing at least one oxide layer, forming the structures, and then removing a portion of the oxide underlying the structures from a back side of the top silicon layer through trenches formed through the top silicon layer. The trenches allow sound waves to reach the diaphragm from the back side of the top silicon layer. In an SOI wafer, a cavity is formed through a bottom silicon layer and an intermediate oxide layer to expose the trenches for both removing the oxide and allowing the sound waves to reach the diaphragm. An inertial sensor may be formed on the same wafer, with various inertial sensor structures formed at substantially the same time and using substantially the same processes as corresponding microphone structures.Type: ApplicationFiled: April 25, 2005Publication date: October 26, 2006Inventors: John Martin, Timothy Brosnihan, Craig Core, Thomas Kieran Nunan, Jason Weigold, Xin Zhang
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Publication number: 20060115958Abstract: A method of forming a SOI wafer obtains an intermediate apparatus having a first wafer, a second wafer, and an insulator material bonding the first and second wafers together. The first wafer has an oxygen precipitate concentration sufficient for gettering. The method reduces the profile of at least a portion of the first wafer to form an exposed surface, and adds a layer of material to the exposed surface of the first wafer. The layer of material substantially integrates with the first wafer to have substantially the same structure.Type: ApplicationFiled: October 28, 2005Publication date: June 1, 2006Inventors: Jason Weigold, Thomas Chen, Denis O'Kane, David Collins, Andrew Bain