Patents by Inventor Vishnu Shankar
Vishnu Shankar 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: 20240141800Abstract: A thermoelectric generator for a turbine engine is provided. The turbine engine can include a core having a casing surrounded by an engine cowl. The thermoelectric generator is attached to or formed integrally with the casing. The thermoelectric generator includes a power generation module formed by a plurality of thermocouples that utilize a temperature differential between a hot side and a cold side of the casing to generate electrical power. In one aspect, an electrically insulative layer is positioned between the casing and the power generation module. In another aspect, the thermoelectric generator includes a phase change material pack that includes an inner layer and an outer layer, the power generation module being positioned between the inner layer and the outer layer. In other aspects, the thermoelectric generator can be additively manufactured on the casing or another structural component of the turbine engine.Type: ApplicationFiled: December 30, 2022Publication date: May 2, 2024Inventors: Vishnu Das K, Vinaykumar Shrimantrao Patil, Manish Singhal, Ravindra Shankar Ganiger
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Publication number: 20240076989Abstract: An airfoil assembly extends along a radial direction between a root and a tip, the airfoil assembly comprising: a first blade segment positioned proximate the root of the airfoil assembly; a second blade segment positioned adjacent the first blade segment along the radial direction; and a tensioning assembly comprising a plurality of tensioning strings that extend between and mechanically couple the first blade segment and the second blade segment.Type: ApplicationFiled: December 14, 2022Publication date: March 7, 2024Inventors: David Raju Yamarthi, Ravindra Shankar Ganiger, Vasanth Kumar Balaramudu, Vishnu Vardhan Venkata Tatiparthi, Nitesh Jain, Vidyashankar Ramasastry Buravalla
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Patent number: 11922068Abstract: A Near Memory Processing (NMP) Dual In-line Memory Module (DIMM) is provided that includes random access memory (RAM), a Near-Memory-Processing (NMP) circuit and a first control port. The NMP circuit is for receiving a command from a host system, determining an operation to be performed on the RAM in response to the command, and a location of data within the RAM with respect to the determined operation. The first control port interacts with a second control port of the host system to enable the NMP circuit to exchange control information with the host system in response to the received command.Type: GrantFiled: February 7, 2022Date of Patent: March 5, 2024Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Eldho Mathew Pathiyakkara Thombra, Ravi Shankar Venkata Jonnalagadda, Prashant Vishwanath Mahendrakar, Jinin So, Jong-Geon Lee, Vishnu Charan Thummala
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Patent number: 9990173Abstract: An audio processor may process dissimilarly formatted digital audio signals and produce an analog output for reproduction by a transducer, such as a speaker. The audio processor may be, for example, a digital-to-analog converter (DAC) with multiple digital inputs and a single analog output. The audio processor may also include other components, such as processing components, filters, equalizers, amplifiers, and the like. The audio processor may process audio, such as high fidelity DSD audio and lower fidelity PCM audio, and combine the differently formatted data into a single output. During processing, the audio processor may manipulate the different audio signals, such as by ducking a music playback to allow a notification sound to be played.Type: GrantFiled: April 14, 2016Date of Patent: June 5, 2018Assignee: Cirrus Logic, Inc.Inventors: Dylan Alexander Hester, Bala Vishnu Shankar Rao, Tarun Soni, John L. Melanson
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Over-sampling digital processing path that emulates Nyquist rate (non-oversampling) audio conversion
Patent number: 9936282Abstract: The behavior of a NOS DAC and an analog filter may be emulated by electronic components of an integrated circuit (IC) by upsampling data and applying a digital filter to the upsampled data. For example, the IC may include a zero-order-hold circuit that upsamples data from a first input sample rate to a second, higher input rate. The upsampled data may be passed to an Asynchronous Sample Rate Converter (ASRC) that performs further upsampling (e.g., from 8*Fs-64*Fs). The upsampled data may be passed to a digital low pass filter. The digital low pass filter may emulate, for example, a response of a fifth order Butterworth analog filter to mimic the effect of analog processing. The IC may integrate the upsampling circuit, the low pass digital filter, a digital-to-analog converter (DAC) and an amplifier to provide an audio solution for playing high-fidelity music in a mobile device.Type: GrantFiled: April 14, 2016Date of Patent: April 3, 2018Assignee: Cirrus Logic, Inc.Inventors: Dylan Alexander Hester, Bala Vishnu Shankar Rao -
Publication number: 20170300290Abstract: An audio processor may process dissimilarly formatted digital audio signals and produce an analog output for reproduction by a transducer, such as a speaker. The audio processor may be, for example, a digital-to-analog converter (DAC) with multiple digital inputs and a single analog output. The audio processor may also include other components, such as processing components, filters, equalizers, amplifiers, and the like. The audio processor may process audio, such as high fidelity DSD audio and lower fidelity PCM audio, and combine the differently formatted data into a single output. During processing, the audio processor may manipulate the different audio signals, such as by ducking a music playback to allow a notification sound to be played.Type: ApplicationFiled: April 14, 2016Publication date: October 19, 2017Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Dylan Alexander Hester, Bala Vishnu Shankar Rao, Tarun Soni, John L. Melanson
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OVER-SAMPLING DIGITAL PROCESSING PATH THAT EMULATES NYQUIST RATE (NON-OVERSAMPLING) AUDIO CONVERSION
Publication number: 20170303032Abstract: The behavior of a NOS DAC and an analog filter may be emulated by electronic components of an integrated circuit (IC) by upsampling data and applying a digital filter to the upsampled data. For example, the IC may include a zero-order-hold circuit that upsamples data from a first input sample rate to a second, higher input rate. The upsampled data may be passed to an Asynchronous Sample Rate Converter (ASRC) that performs further upsampling (e.g., from 8*Fs-64*Fs). The upsampled data may be passed to a digital low pass filter. The digital low pass filter may emulate, for example, a response of a fifth order Butterworth analog filter to mimic the effect of analog processing. The IC may integrate the upsampling circuit, the low pass digital filter, a digital-to-analog converter (DAC) and an amplifier to provide an audio solution for playing high-fidelity music in a mobile device.Type: ApplicationFiled: April 14, 2016Publication date: October 19, 2017Applicant: Cirrus Logic International Semiconductor Ltd.Inventors: Dylan Alexander Hester, Bala Vishnu Shankar Rao -
Patent number: 9766278Abstract: A system and method utilize multiple, asynchronous, voltage isolated integrated power data circuits (IPDCs) to respectively determine one or more power parameters of a multi-phase power distribution system. In at least one embodiment, the power parameters represent differences between voltage phases of a multi-phase power distribution system. In at least one embodiment, the IPDCs each sense a voltage or current from a single phase of a three-phase power distribution system. Additionally, the IPDCs are electrically isolated from each other and, thus, in at least one embodiment, can utilize voltage divider or shunt resistor sensing without being subject to high voltages representative of the difference between voltage phases. Additionally, in at least one embodiment, each of the IPDCs utilizes a separate clock signal to determine phase sequence and phase angle deltas of one or more three phase voltages of the three-phase power distribution system.Type: GrantFiled: January 11, 2013Date of Patent: September 19, 2017Assignee: Cirrus Logic, Inc.Inventors: Bala Vishnu Shankar Rao, Roderick D. Holley, II
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Patent number: 8422964Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.Type: GrantFiled: May 10, 2011Date of Patent: April 16, 2013Assignee: Silicon Laboratories Inc.Inventors: Donald A. Kerth, Richard T. Behrens, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Shankar Srinivasan
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Publication number: 20110230158Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.Type: ApplicationFiled: May 10, 2011Publication date: September 22, 2011Inventors: Donald A. Kerth, Richard T. Behrens, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Shankar Srinivasan
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Patent number: 7941102Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.Type: GrantFiled: October 31, 2007Date of Patent: May 10, 2011Assignee: Silicon Laboratories Inc.Inventors: Donald A. Kerth, Richard T. Behrens, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Shankar Srinivasan
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Publication number: 20080139157Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.Type: ApplicationFiled: October 31, 2007Publication date: June 12, 2008Inventors: Donald A. Kerth, Richard T. Behrens, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Shankar Srinivasan
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Patent number: 7366478Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.Type: GrantFiled: June 28, 2004Date of Patent: April 29, 2008Assignee: Silicon Laboratories Inc.Inventors: Donald A. Kerth, Richard T. Behrens, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Shankar Srinivasan
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Patent number: 7209561Abstract: A method for generating a seed value for use in symmetric encryption includes creating and storing a first data set and generating a hashed value based on the first data set. A replacement position in the first data set is selected, and at least a portion of the hashed value is written into the first data set at the replacement position. A seed portion of the first data set is selected as the seed value. By varying a number of iterations, a balance can be struck between performance (fewer iterations) and security (more iterations).Type: GrantFiled: September 20, 2002Date of Patent: April 24, 2007Assignee: Cybersource CorporationInventors: Vishnu Shankar, Jason Eaton
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Patent number: 7158574Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The interface between the receiver analog circuitry and the receiver digital circuitry includes configurable signal lines that function as a serial interface, or as a data and clock signal interface, depending on the state of a control signal.Type: GrantFiled: March 29, 2001Date of Patent: January 2, 2007Assignee: Silicon Laboratories Inc.Inventors: G. Diwakar Vishakhadatta, Jeffrey W. Scott, G. Tyson Tuttle, Vishnu Shankar Srinivasan, Aslamali A. Rafi
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Patent number: 6804497Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.Type: GrantFiled: March 29, 2001Date of Patent: October 12, 2004Assignee: Silicon Laboratories, Inc.Inventors: Donald A. Kerth, Richard T. Behrens, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Shankar Srinivasan
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Publication number: 20020141511Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The interface between the receiver analog circuitry and the receiver digital circuitry includes configurable signal lines that function as a serial interface, or as a data and clock signal interface, depending on the state of a control signal.Type: ApplicationFiled: March 29, 2001Publication date: October 3, 2002Inventors: G. Diwakar Vishakhadatta, Jeffrey W. Scott, G. Tyson Tuttle, Vishnu Shankar Srinivasan, Aslamali A. Rafi
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Publication number: 20020132648Abstract: Radio-frequency (RF) apparatus includes receiver analog circuitry that receives an RF signal and provides at least one digital signal to receiver digital circuitry that functions in cooperation with the receiver analog circuitry. The receiver analog circuitry and the receiver digital circuitry are partitioned so that interference effects between the receiver analog circuitry and the receiver digital circuitry tend to be reduced.Type: ApplicationFiled: March 29, 2001Publication date: September 19, 2002Inventors: Donald A. Kerth, Richard T. Behrens, Jeffrey W. Scott, G. Diwakar Vishakhadatta, G. Tyson Tuttle, Vishnu Shankar Srinivasan
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Patent number: 6147522Abstract: Circuitry for selectively sampling a reference voltage with a capacitor 403 includes a first switch 505a for selectively coupling capacitor 403 to a source of a first reference signal during a first operating phase and a second switch 505b for selectively coupling capacitor 403 to a source of a second reference signal during a second operating phase.Type: GrantFiled: December 31, 1998Date of Patent: November 14, 2000Assignee: Cirrus Logic, Inc.Inventors: Jason Powell Rhode, Vishnu Shankar Srinivasan, Eric Clay Gaalaas, Johann Guy Gaboriau