Patents by Inventor Rajarishi Sinha
Rajarishi Sinha 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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Publication number: 20240020573Abstract: Aspects of the disclosure are directed to an approach for extending forecasting models to various levels of granularity. The approach can include receiving a target level of granularity for distributing a forecast, performing forecast modeling at an aggregated level of granularity, and determining a distribution method to distribute results of the forecast model at the target level of granularity. The approach can improve performance over existing forecasting models with minimal overhead.Type: ApplicationFiled: July 12, 2022Publication date: January 18, 2024Inventors: Wangyang Zhang, Leyou Zhang, Rajarishi Sinha, Michael Peter Perrone, Andrew James McGehee, Dawei Jia, Jingtao Wang
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Publication number: 20200131025Abstract: Embodiments of the present technology may be directed to wave propagation computing (WPC) device(s), such as an acoustic wave reservoir computing (AWRC) device, that performs computations by random projection. In some embodiments, the AWRC device is used as part of a machine learning system or as part of a more generic signal analysis system. The AWRC device takes in multiple electrical input signals and delivers multiple output signals. It performs computations on these input signals to generate the output signals. It performs the computations using acoustic (or electro-mechanical) components and techniques, rather than using electronic components (such as CMOS logic gates or MOSFET transistors) as is commonly done in digital reservoirs.Type: ApplicationFiled: June 12, 2018Publication date: April 30, 2020Applicant: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, David Francois Guillou
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Patent number: 9837975Abstract: A resonator device comprising a piezoelectric material and at least one electrode, the device also provided with a material with a positive coefficient of stiffness, wherein the material is disposed in the device as an electrode or as a separate layer adjacent the piezoelectric material formed as one or more layers in the device. The material that performs the temperature compensating function is selected from the group consisting of ferromagnetic metal alloys, shape-memory metal alloys, and polymers, wherein the selected material has a temperature coefficient that varies with the relative amounts of the individual constituents of the compositions and wherein the composition is selected to provide the material with the positive coefficient of stiffness.Type: GrantFiled: March 31, 2014Date of Patent: December 5, 2017Assignee: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, David Francois Guillou
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Patent number: 9735338Abstract: A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer. The resonator structure is suspended in a cavity in a cap structure.Type: GrantFiled: July 25, 2014Date of Patent: August 15, 2017Assignee: Cymatics Laboratories Corp.Inventors: David Francois Guillou, Rajarishi Sinha
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Patent number: 9503046Abstract: A MEMS or NEMS device with at least one component made of a non-naturally occurring isotope material. The refined isotopic material provides advantages to device operation such as reduced mechanical loss, increased breakdown voltage, improved tunability and other advantages.Type: GrantFiled: June 8, 2012Date of Patent: November 22, 2016Assignee: Cymatics Laboratories Corp.Inventors: Rajarishi Sinha, David Francois Guillou
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Patent number: 9362880Abstract: Methods that create an array of BAW resonators by patterning a mass load layer to control the resonant frequency of the resonators and resonators formed thereby, are disclosed. Patterning the surface of a mass load layer and introducing apertures with dimensions smaller than the acoustic wavelength, or dimpling the mass load layer, modifies the acoustic path length of the resonator, thereby changing the resonant frequency of the device. Patterns of variable density allow for further tuning the resonators and for individualized tuning of a resonator in an array of resonators. Patterning a reflowable material for the mass load layer, thereby providing a variable pattern density and distribution followed by elevating the temperature of the mass load layer above its melting point causes the material to liquefy and fill into the apertures to redistribute the mass load layer, thereby, upon subsequent cooling, providing resonators with a predetermined desired resonant frequency.Type: GrantFiled: December 15, 2011Date of Patent: June 7, 2016Inventors: Rajarishi Sinha, L. Richard Carley, Deok-Yang Kim
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Patent number: 8981618Abstract: A tunable acoustic resonator device has a piezoelectric medium as a first thin film layer and a tunable crystal medium as a second thin film layer. The tunable crystal medium has a first acoustic behavior over an operating temperature range under a condition of relatively low applied stress and a second acoustic behavior under a condition of relatively high applied stress. The acoustic behaviors are substantially different and, consequently, the different levels of applied stress are used to tune the acoustic resonator device. Compared with the tunable resonator device consisting of only tunable crystal medium, a device having both the piezoelectric and tunable crystal medium has advantages such as larger inherent bandwidth and less nonlinearity with AC signals. The device also requires a smaller applied stress (i.e. bias voltage) to achieve the required frequency tuning.Type: GrantFiled: August 16, 2013Date of Patent: March 17, 2015Assignee: Cymatics Laboratories Corp.Inventors: Rajarishi Sinha, L. Richard Carley, Deok-Yang Kim
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Publication number: 20140333177Abstract: A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer. The resonator structure is suspended in a cavity in a cap structure.Type: ApplicationFiled: July 25, 2014Publication date: November 13, 2014Applicant: CYMATICS LABORATORIES CORP.Inventors: David Francois Guillou, Rajarishi Sinha
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Publication number: 20140292152Abstract: A resonator device in which a piezoelectric material is disposed between two electrodes. At least one of the electrodes is formed of a nickel-titanium alloy having equal portions nickel and titanium.Type: ApplicationFiled: March 31, 2014Publication date: October 2, 2014Applicant: Cymatics Laboratories Corp.Inventors: Peter Ledel Gammel, Marco Mastrapasqua, Hugo Safar, Rajarishi Sinha
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Publication number: 20140292153Abstract: A resonator device comprising a piezoelectric material and at least one electrode, the device also provided with a material with a positive coefficient of stiffness, wherein the material is disposed in the device as an electrode or as a separate layer adjacent the piezoelectric material formed as one or more layers in the device. The material that performs the temperature compensating function is selected from the group consisting of ferromagnetic metal alloys, shape-memory metal alloys, and polymers, wherein the selected material has a temperature coefficient that varies with the relative amounts of the individual constituents of the compositions and wherein the composition is selected to provide the material with the positive coefficient of stiffness.Type: ApplicationFiled: March 31, 2014Publication date: October 2, 2014Applicant: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, David Francois Guillou
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Publication number: 20140022009Abstract: The present invention is directed to monolithic integrated circuits incorporating an oscillator element that are particularly suited for use in timing applications. The oscillator element includes a resonator element having a piezoelectric material disposed between a pair of electrodes. The oscillator element also includes an acoustic confinement structure that may be disposed on either side of the resonator element. The acoustic confinement element includes alternating sets of low and high acoustic impedance materials. A temperature compensation layer may be disposed between the piezoelectric material and at least one of the electrodes. The oscillator element is monolithically integrated with an integrated circuit element through an interconnection. The oscillator element and the integrated circuit element may be fabricated sequentially or concurrently.Type: ApplicationFiled: September 27, 2013Publication date: January 23, 2014Applicant: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, Peter Ledel Gammel, Marco Mastrapasqua, Hugo Safar
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Publication number: 20130335166Abstract: A tunable acoustic resonator device has a piezoelectric medium as a first thin film layer and a tunable crystal medium as a second thin film layer. The tunable crystal medium has a first acoustic behavior over an operating temperature range under a condition of relatively low applied stress and a second acoustic behavior under a condition of relatively high applied stress. The acoustic behaviors are substantially different and, consequently, the different levels of applied stress are used to tune the acoustic resonator device. Compared with the tunable resonator device consisting of only tunable crystal medium, a device having both the piezoelectric and tunable crystal medium has advantages such as larger inherent bandwidth and less nonlinearity with AC signals. The device also requires a smaller applied stress (i.e. bias voltage) to achieve the required frequency tuning.Type: ApplicationFiled: August 16, 2013Publication date: December 19, 2013Applicant: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, L. Richard Carley, Deok-Yang Kim
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Publication number: 20130300259Abstract: A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.Type: ApplicationFiled: July 15, 2013Publication date: November 14, 2013Applicant: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, L. Richard Carley, Louis Caley Chomas, Hugo Safar
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Patent number: 8564174Abstract: The present invention is directed to monolithic integrated circuits incorporating an oscillator element that is particularly suited for use in timing applications. The oscillator element includes a resonator element having a piezoelectric material disposed between a pair of electrodes. The oscillator element also includes an acoustic confinement structure that may be disposed on either side of the resonator element. The acoustic confinement element includes alternating sets of low and high acoustic impedance materials. A temperature compensation layer may be disposed between the piezoelectric material and at least one of the electrodes. The oscillator element is monolithically integrated with an integrated circuit element through an interconnection. The oscillator element and the integrated circuit element may be fabricated sequentially or concurrently.Type: GrantFiled: December 29, 2011Date of Patent: October 22, 2013Assignee: Cymatics Laboratories Corp.Inventors: Rajarishi Sinha, Peter Ledel Gammel, Marco Mastrapasqua, Hugo Safar
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Patent number: 8531083Abstract: A tunable acoustic resonator device has a piezoelectric medium as a first thin film layer and a tunable crystal medium as a second thin film layer. The tunable crystal medium has a first acoustic behavior over an operating temperature range under a condition of relatively low applied stress and a second acoustic behavior under a condition of relatively high applied stress. The acoustic behaviors are substantially different and, consequently, the different levels of applied stress are used to tune the acoustic resonator device. Compared with the tunable resonator device consisting of only tunable crystal medium, a device having both the piezoelectric and tunable crystal medium has advantages such as larger inherent bandwidth and less nonlinearity with AC signals. The device also requires a smaller applied stress (i.e. bias voltage) to achieve the required frequency tuning.Type: GrantFiled: February 24, 2009Date of Patent: September 10, 2013Assignee: Resonance Semiconductor CorporationInventors: Rajarishi Sinha, L. Richard Carley, Deok-Yang Kim
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Patent number: 8487511Abstract: A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.Type: GrantFiled: July 16, 2012Date of Patent: July 16, 2013Assignee: Resonance Semiconductor CorporationInventors: Rajarishi Sinha, L. Richard Carley, Louis Caley Chomas, Hugo Safar
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Patent number: 8373519Abstract: A switchable power combiner is disclosed. The switchable power combiner has an output section that is a signal source connected to a transformer section. The transformer section has one or more primaries and a common secondary. The transformer primaries and secondary are acoustically coupled. The primaries or/and the secondary are made of switchable piezoelectric material, such that the acoustic coupling between any primary and the secondary can be switched on or off by electrical control, thereby implementing a switchable power combiner. The transformer secondary is connected to an antenna port. The power amplifier output section is segmented and connected to the transformer primaries. The power amplifier output section has a plurality of power amplifiers and a plurality of reactance elements, either fixed or variable. The switchable power combiner generates different linear load lines by switching on and off the coupling between any primary and the secondary.Type: GrantFiled: January 26, 2010Date of Patent: February 12, 2013Assignee: Resonance Semiconductor CorporationInventors: Rajarishi Sinha, L. Richard Carley
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Publication number: 20120313480Abstract: A MEMS or NEMS device with at least one component made of a non-naturally occurring isotope material. The refined isotopic material provides advantages to device operation such as reduced mechanical loss, increased breakdown voltage, improved tunability and other advantages.Type: ApplicationFiled: June 8, 2012Publication date: December 13, 2012Applicant: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, David Francois Guillou
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Publication number: 20120274183Abstract: A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.Type: ApplicationFiled: July 16, 2012Publication date: November 1, 2012Applicant: CYMATICS LABORATORIES CORP.Inventors: Rajarishi Sinha, L. Richard Carley, Louis Caley Chomas, Hugo Safar
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Patent number: 8222795Abstract: A bulk acoustic wave resonator structure that isolates the core resonator from both environmental effects and aging effects. The structure has a piezoelectric layer at least partially disposed between two electrodes. The structure is protected against contamination, package leaks, and changes to the piezoelectric material due to external effects while still providing inertial resistance. The structure has one or more protective elements that limit aging effects to at or below a specified threshold. The resonator behavior is stabilized across the entire bandwidth of the resonance, not just at the series resonance. Examples of protective elements include a collar of material around the core resonator so that perimeter and edge-related environmental and aging phenomena are kept away from the core resonator, a Bragg reflector formed above or below the piezoelectric layer and a cap formed over the piezoelectric layer.Type: GrantFiled: September 27, 2011Date of Patent: July 17, 2012Assignee: Resonance Semiconductor CorporationInventors: Rajarishi Sinha, L. Richard Carley, Louis Caley Chomas, Hugo Safar