Patents by Inventor Vijay Venkatesh
Vijay Venkatesh 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: 11778911Abstract: Aspects of the disclosure provide a method including determining a measurement configuration for one or more piezoelectric devices in an electronic apparatus. The electronic apparatus includes an electronic device mounted on a substrate block using a bonding layer. The one or more piezoelectric devices including a first subset and a second subset are attached to one of the electronic device and the bonding layer. The method includes performing, based on the measurement configuration, a defect measurement on the electronic apparatus by causing the first subset to transmit and the second subset to receive one or more acoustic signals. The method includes determining whether at least one mechanical defect is located in at least one of (i) the bonding layer, (ii) the electronic device, (iii) the substrate block, (iv) interfaces of the electronic device, the bonding layer, and the substrate block based on the received one or more acoustic signals.Type: GrantFiled: September 29, 2020Date of Patent: October 3, 2023Assignee: OHIO STATE INNOVATION FOUNDATIONInventors: Shailesh N. Joshi, Vishnu Baba Sundaresan, Vijay Venkatesh, Srivatsava Krishnan
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Patent number: 11386544Abstract: An electronics system may include a substrate, an electronic device bonded to the substrate, a plurality of photoluminescent particles disposed on the electronic device, an illuminator, a sensor, and a control module. The illuminator can illuminate the electronic device. The sensor can capture a first set of positions of the photoluminescent particles on the electronic device when the electronic device is not operating under a load and a second set of positions of the photoluminescent particles when the electronic device is operating under a load. The control module can determine thermomechanical stress on the electronic device based at least in part on a difference between the first set of positions and the second set of positions.Type: GrantFiled: October 30, 2019Date of Patent: July 12, 2022Assignee: TOYOTA MOTOR ENGINEEEING & MANUFACTURING NORTH AMERICA, INC.Inventors: Shailesh N. Joshi, Umesh Gandhi, Vishnu Sundaresan, Vijay Venkatesh, Srivatsava Krishnan
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Publication number: 20220102620Abstract: Aspects of the disclosure provide a method including determining a measurement configuration for one or more piezoelectric devices in an electronic apparatus. The electronic apparatus includes an electronic device mounted on a substrate block using a bonding layer. The one or more piezoelectric devices including a first subset and a second subset are attached to one of the electronic device and the bonding layer. The method includes performing, based on the measurement configuration, a defect measurement on the electronic apparatus by causing the first subset to transmit and the second subset to receive one or more acoustic signals. The method includes determining whether at least one mechanical defect is located in at least one of (i) the bonding layer, (ii) the electronic device, (iii) the substrate block, (iv) interfaces of the electronic device, the bonding layer, and the substrate block based on the received one or more acoustic signals.Type: ApplicationFiled: September 29, 2020Publication date: March 31, 2022Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., Ohio State Innovation FoundationInventors: Shailesh N. JOSHI, Vishnu Baba SUNDARESAN, Vijay VENKATESH, Srivatsava KRISHNAN
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Patent number: 11193913Abstract: A method of detecting sub-surface voids in a sample comprises positioning a probe adjacent to a first point on the sample, emitting an ultrasonic wave from the probe towards the sample, moving the probe towards the sample, measuring a shear force amplitude of a reflection of the ultrasonic wave at the probe as the probe moves towards the sample, creating an approach curve by plotting the measured shear force amplitude of the reflection of the ultrasonic wave as a function of a distance between the probe and the sample, and determining whether a sub-surface void exists at the first point on the sample based on a slope of the approach curve.Type: GrantFiled: January 31, 2020Date of Patent: December 7, 2021Assignees: TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., THE OHIO STATE UNIVERSITYInventors: Shailesh N. Joshi, Vishnu Baba Sundaresan, Vijay Venkatesh
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Publication number: 20210239653Abstract: A method of detecting sub-surface voids in a sample comprises positioning a probe adjacent to a first point on the sample, emitting an ultrasonic wave from the probe towards the sample, moving the probe towards the sample, measuring a shear force amplitude of a reflection of the ultrasonic wave at the probe as the probe moves towards the sample, creating an approach curve by plotting the measured shear force amplitude of the reflection of the ultrasonic wave as a function of a distance between the probe and the sample, and determining whether a sub-surface void exists at the first point on the sample based on a slope of the approach curve.Type: ApplicationFiled: January 31, 2020Publication date: August 5, 2021Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., The Ohio State UniversityInventors: Shailesh N. Joshi, Vishnu Baba Sundaresan, Vijay Venkatesh
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Publication number: 20210133952Abstract: An electronics system may include a substrate, an electronic device bonded to the substrate, a plurality of photoluminescent particles disposed on the electronic device, an illuminator, a sensor, and a control module. The illuminator can illuminate the electronic device. The sensor can capture a first set of positions of the photoluminescent particles on the electronic device when the electronic device is not operating under a load and a second set of positions of the photoluminescent particles when the electronic device is operating under a load. The control module can determine thermomechanical stress on the electronic device based at least in part on a difference between the first set of positions and the second set of positions.Type: ApplicationFiled: October 30, 2019Publication date: May 6, 2021Applicants: Toyota Motor Engineering & Manufacturing North America, Inc., The Ohio State UniversityInventors: Shailesh N. Joshi, Umesh Gandhi, Vishnu Sundaresan, Vijay Venkatesh, Srivatsava Krishnan
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Patent number: 10318071Abstract: A method and apparatus for generating touch blob angle orientation in a touch device are described. In one embodiment, the apparatus comprises a touch processing unit operable to analyze sensor data generated from touch inputs on a touchscreen and generate touch blob information for each detected touch blob; and a filter coupled to the touch processing unit operable to filter blob orientation information from a filter output in response to detection of a finger lifting event.Type: GrantFiled: March 23, 2017Date of Patent: June 11, 2019Assignee: INTEL CORPORATIONInventors: Nobuyuki Suzuki, Dale Bengtson, Vijay Venkatesh Mahalingam, Lee Nau
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Publication number: 20180275822Abstract: A method and apparatus for generating touch blob angle orientation in a touch device are described. In one embodiment, the apparatus comprises a touch processing unit operable to analyze sensor data generated from touch inputs on a touchscreen and generate touch blob information for each detected touch blob; and a filter coupled to the touch processing unit operable to filter blob orientation information from a filter output in response to detection of a finger lifting event.Type: ApplicationFiled: March 23, 2017Publication date: September 27, 2018Inventors: Nobuyuki Suzuki, Dale Bengtson, Vijay Venkatesh Mahalingam, Lee Nau
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Patent number: 9690438Abstract: A processing system for an input device having a sensing region overlapping an input surface and an array of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels. The processing system is configured to: determine a proximity image indicative of positional information for input objects; determine a force image indicative of local deflection of the input surface in response to force applied by the input objects; determine a respective group of proximity pixels from the proximity image corresponding to each input object; determine a respective group of force pixels from the force image corresponding to each determined group of proximity pixels; determine the position of each input object based on the determined groups of proximity pixels; and determine the force associated with each input object based on the determined groups of force pixels.Type: GrantFiled: May 6, 2016Date of Patent: June 27, 2017Assignee: Synaptics IncorporatedInventors: Patrick Worfolk, Vijay Venkatesh Mahalingam
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Patent number: 9569029Abstract: A method for face detection management includes determining, for a first time, a presence of an input object in a sensing region of a capacitance input device. The presence is determined for the first time using a first baseline, and the input object satisfies a size threshold. The method further includes suppressing a reporting of capacitance input device during a predefined time period based on the presence of the input object, determining a disabled state of a display of a host, wherein the disabled state is in response to determining the presence of the input object for the first time, and determining, in response to an elapse of the predefined time period and for a second time, an absence of the input object in the sensing region. The absence of the input object is determined for the second time using a second baseline to account for the disabled state of the display. The method further includes performing an action based on determining the absence of the input object.Type: GrantFiled: February 18, 2015Date of Patent: February 14, 2017Assignee: Synaptics IncorporatedInventors: Ying Wang, Tyler Moore, Vijay Venkatesh Mahalingam, Derek Solven, Earl Peng, Nickolas Fotopoulos
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Publication number: 20160253007Abstract: A processing system for an input device having a sensing region overlapping an input surface and an array of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels. The processing system is configured to: determine a proximity image indicative of positional information for input objects; determine a force image indicative of local deflection of the input surface in response to force applied by the input objects; determine a respective group of proximity pixels from the proximity image corresponding to each input object; determine a respective group of force pixels from the force image corresponding to each determined group of proximity pixels; determine the position of each input object based on the determined groups of proximity pixels; and determine the force associated with each input object based on the determined groups of force pixels.Type: ApplicationFiled: May 6, 2016Publication date: September 1, 2016Inventors: Patrick Worfolk, Vijay Venkatesh Mahalingam
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Publication number: 20160239139Abstract: A method for face detection management includes determining, for a first time, a presence of an input object in a sensing region of a capacitance input device. The presence is determined for the first time using a first baseline, and the input object satisfies a size threshold. The method further includes suppressing a reporting of capacitance input device during a predefined time period based on the presence of the input object, determining a disabled state of a display of a host, wherein the disabled state is in response to determining the presence of the input object for the first time, and determining, in response to an elapse of the predefined time period and for a second time, an absence of the input object in the sensing region. The absence of the input object is determined for the second time using a second baseline to account for the disabled state of the display. The method further includes performing an action based on determining the absence of the input object.Type: ApplicationFiled: February 18, 2015Publication date: August 18, 2016Inventors: Ying Wang, Tyler Moore, Vijay Venkatesh Mahalingam, Derek Solven, Earl Peng, Nickolas Fotopoulos
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Patent number: 9411458Abstract: A processing system for an input device having a sensing region overlapping an input surface and an array of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels. The processing system is configured to: determine a proximity image indicative of positional information for input objects; determine a force image indicative of local deflection of the input surface in response to force applied by the input objects; determine a respective group of proximity pixels from the proximity image corresponding to each input object; determine a respective group of force pixels from the force image corresponding to each determined group of proximity pixels; determine the position of each input object based on the determined groups of proximity pixels; and determine the force associated with each input object based on the determined groups of force pixels.Type: GrantFiled: June 30, 2014Date of Patent: August 9, 2016Assignee: Synaptics IncorporatedInventors: Patrick Worfolk, Vijay Venkatesh Mahalingam
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Publication number: 20150378491Abstract: A processing system for an input device having a sensing region overlapping an input surface and an array of sensor electrodes configured to form a plurality of proximity pixels and a plurality of force pixels. The processing system is configured to: determine a proximity image indicative of positional information for input objects; determine a force image indicative of local deflection of the input surface in response to force applied by the input objects; determine a respective group of proximity pixels from the proximity image corresponding to each input object; determine a respective group of force pixels from the force image corresponding to each determined group of proximity pixels; determine the position of each input object based on the determined groups of proximity pixels; and determine the force associated with each input object based on the determined groups of force pixels.Type: ApplicationFiled: June 30, 2014Publication date: December 31, 2015Inventors: Patrick Worfolk, Vijay Venkatesh Mahalingam
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Patent number: 9046977Abstract: Methods, systems and devices are described for determining positional information for objects using an input device. The various embodiments provide improved user interface functionality by facilitating user input with input objects that are at the surface and objects that are away from the surface. The input device includes a processing system and an array of sensor electrodes adapted to capacitively sense objects in a sensing region. The processing system is configured to determine first positional information for an input object in a first portion of the sensing region based on a difference between a first frame of the first plurality of frames and a filtered frame even when the input object is determined to be in the sensing region when the first plurality of frames are acquired, wherein the filtered frame is based on one or more of the first plurality of frames.Type: GrantFiled: December 12, 2012Date of Patent: June 2, 2015Assignee: Synaptics IncorporatedInventors: Vijay Venkatesh Mahalingam, Adam Schwartz, Kathy Goudarzi, Tracy Scott Dattalo
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Publication number: 20140160056Abstract: Methods, systems and devices are described for determining positional information for objects using an input device. The various embodiments provide improved user interface functionality by facilitating user input with input objects that are at the surface and objects that are away from the surface. The input device includes a processing system and an array of sensor electrodes adapted to capacitively sense objects in a sensing region.Type: ApplicationFiled: December 12, 2012Publication date: June 12, 2014Applicant: SYNAPTICS INCORPORATEDInventors: Vijay Venkatesh Mahalingam, Adam Schwartz, Kathy Goudarzi, Tracy Scott Dattalo