Patents by Inventor Ravishankar Sivalingam

Ravishankar Sivalingam 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).

  • Publication number: 20200314305
    Abstract: Various aspects of the present disclosure generally relate to a sensor module. In some aspects, a sensor module may include a collar configured to be attached to a camera module for a user device. The collar may include a first opening that is configured to align with an aperture of a camera of the camera module, and a second opening. The sensor module may include a sensor embedded in the collar. The sensor may be aligned with the second opening of the collar. Numerous other aspects are provided.
    Type: Application
    Filed: July 24, 2019
    Publication date: October 1, 2020
    Inventors: Russell GRUHLKE, Jon LASITER, Ravindra Vaman SHENOY, Ravishankar SIVALINGAM, Kebin LI, Khurshid Syed ALAM
  • Publication number: 20200292177
    Abstract: A connected oven, including a set of in-cavity sensors and a processor configured to automatically identify foodstuff within the cooking cavity, based on the sensor measurements; and automatically operate the heating element based on the foodstuff identity.
    Type: Application
    Filed: June 2, 2020
    Publication date: September 17, 2020
    Inventors: Nikhil Bhogal, Matthew Van Horn, Seunghoon Park, Ravishankar Sivalingam, Christopher Russell Clark
  • Patent number: 10713396
    Abstract: Methods for aligning a digital 3D model of teeth represented by a 3D mesh to a desired orientation within a 3D coordinate system. The method includes receiving the 3D mesh in random alignment and changing an orientation of the 3D mesh to align the digital 3D model of teeth with a desired axis in the 3D coordinate system. The methods can also detect a gum line in the digital 3D model to remove the gingiva from the model.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: July 14, 2020
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Guruprasad Somasundaram, Evan J. Ribnick, Ravishankar Sivalingam, Shannon D. Scott, Golshan Golnari, Aya Eid
  • Publication number: 20200182481
    Abstract: A connected oven, including a set of in-cavity sensors and a processor configured to automatically identify foodstuff within the cooking cavity, based on the sensor measurements; and automatically operate the heating element based on the foodstuff identity.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 11, 2020
    Inventors: Nikhil Bhogal, Matthew Van Horn, Seunghoon Park, Ravishankar Sivalingam, Christopher Russell Clark
  • Publication number: 20200182480
    Abstract: A connected oven, including a set of in-cavity sensors and a processor configured to automatically identify foodstuff within the cooking cavity, based on the sensor measurements; and automatically operate the heating element based on the foodstuff identity.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 11, 2020
    Inventors: Nikhil Bhogal, Matthew Van Horn, Seunghoon Park, Ravishankar Sivalingam, Christopher Russell Clark
  • Patent number: 10674143
    Abstract: Certain aspects of the present disclosure relate to a system. In some aspects, the system may include an emitter configured to emit a light. The system may include a light guide configured to direct the light toward a pupil of an eye. The light guide may include a directing portion configured to propagate the light. The light guide may include a turning portion configured to receive light from the directing portion and direct the light toward the pupil of the eye and configured to receive reflected light directed from the pupil of the eye and direct the reflected light toward the directing portion. The system may include a receiver configured to receive the reflected light from the light guide. The system may include a processor configured to determine a gaze direction of the pupil of the eye based at least in part on the reflected light received by the receiver.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: June 2, 2020
    Assignee: QUALCOMM Incorporated
    Inventors: Russell Gruhlke, Venkat Rangan, Ravishankar Sivalingam, Kebin Li
  • Publication number: 20200160106
    Abstract: Cameras with large field-of-view lenses can cause significant geometric distortions of the images acquired. Training for object detection normally takes place on undistorted images. Thus, in order to detect objects of interest within the acquired images, an undistortion procedure is applied on the acquired images and an object detection is then performed on the undistorted images. Unfortunately, such undistortion procedure is too computationally expensive to be run on some edge devices. To remove the need to perform the undistortion procedure, it is proposed to train for object detection directly from distorted acquired images.
    Type: Application
    Filed: November 16, 2018
    Publication date: May 21, 2020
    Inventors: Ravishankar SIVALINGAM, Edwin Chongwoo PARK
  • Publication number: 20200103120
    Abstract: A connected oven, including a set of in-cavity sensors and a processor configured to automatically identify foodstuff within the cooking cavity, based on the sensor measurements; and automatically operate the heating element based on the foodstuff identity.
    Type: Application
    Filed: November 19, 2019
    Publication date: April 2, 2020
    Inventors: Nikhil Bhogal, Matthew Van Horn, Seunghoon Park, Ravishankar Sivalingam, Christopher Russell Clark
  • Publication number: 20200096203
    Abstract: A connected oven, including a set of in-cavity sensors and a processor configured to automatically identify foodstuff within the cooking cavity, based on the sensor measurements; and automatically operate the heating element based on the foodstuff identity.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 26, 2020
    Inventors: Nikhil Bhogal, Matthew Van Horn, Seunghoon Park, Ravishankar Sivalingam, Christopher Russell Clark
  • Publication number: 20200088412
    Abstract: A connected oven, including a set of in-cavity sensors and a processor configured to automatically identify foodstuff within the cooking cavity, based on the sensor measurements; and automatically operate the heating element based on the foodstuff identity.
    Type: Application
    Filed: November 19, 2019
    Publication date: March 19, 2020
    Inventors: Nikhil Bhogal, Matthew Van Horn, Seunghoon Park, Ravishankar Sivalingam, Christopher Russell Clark
  • Patent number: 10551524
    Abstract: Systems and methods for authenticating material samples are provided. Characteristic features are measured for a batch of material samples that comprise substantially the same composition and are produced by substantially the same process. The measured characteristic features have respective variability that is analyzed to extract statistical parameters. In some cases, reference ranges are determined based on the extracted statistical parameters for the batch of material samples. The corresponding statistical parameters of a test material sample are compared to the reference ranges to verify whether the test material sample is authentic.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: February 4, 2020
    Assignee: 3M INNOVATIVE PROPERTY COMPANIES
    Inventors: Anthony J. Sabelli, Jennifer F. Shumacher, Yanina Shkel, Brian J. Stankiewicz, Glenn E. Casner, John A. Wheatley, Andrew P. Bonifas, Ravishankar Sivalingam
  • Patent number: 10453215
    Abstract: Techniques are presented for detecting a visual marker. A first image containing the visual marker may be captured at a first time under a first lighting condition. A first image-based detection for the visual marker may be performed based on the first image, using a first detector, to produce a first set of results. A second image containing the visual marker may be captured at a second time under a second lighting condition different from the first lighting condition. Based on the first set of results, a second image-based detection for the visual marker may be performed based on the second image, using a second detector different from the first detector, to produce a second set of results.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: October 22, 2019
    Assignee: QUALCOMM Incorporated
    Inventors: Edwin Chongwoo Park, Ravishankar Sivalingam
  • Patent number: 10405796
    Abstract: Methods for estimating and predicting tooth wear based upon a single 3D digital model of teeth. The 3D digital model is segmented to identify individual teeth within the model. A digital model of a tooth is selected from the segmented model, and its original shape is predicted. The digital model is compared with the predicted original shape to estimate wear areas. A mapping function based upon values relating to tooth wear can also be applied to the selected digital model to predict wear of the tooth.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: September 10, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Evan J. Ribnick, Guruprasad Somasundaram, Brian J. Stankiewicz, Aya Eid, Ravishankar Sivalingam, Shannon D. Scott, Anthony J. Sabelli, Robert D. Lorentz
  • Patent number: 10410346
    Abstract: A method for detecting tooth wear using digital 3D models of teeth taken at different times. The digital 3D models of teeth are segmented to identify individual teeth within the digital 3D model. The segmentation includes performing a first segmentation method that over segments at least some of the teeth within the model and a second segmentation method that classifies points within the model as being either on an interior of a tooth or on a boundary between teeth. The results of the first and second segmentation methods are combined to generate segmented digital 3D models. The segmented digital 3D models of teeth are compared to detect tooth wear by determining differences between the segmented models, where the differences relate to the same tooth to detect wear on the tooth over time.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: September 10, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Guruprasad Somasundaram, Evan J. Ribnick, Ravishankar Sivalingam, Aya Eid, Theresa M. Meyer, Golshan Golnari, Anthony J. Sabelli
  • Publication number: 20190234617
    Abstract: A connected oven, including a set of in-cavity sensors and a processor configured to automatically identify foodstuff within the cooking cavity, based on the sensor measurements; and automatically operate the heating element based on the foodstuff identity.
    Type: Application
    Filed: April 10, 2019
    Publication date: August 1, 2019
    Inventors: Nikhil Bhogal, Matthew Van Horn, Seunghoon Park, Ravishankar Sivalingam, Christopher Russell Clark
  • Patent number: 10331411
    Abstract: Systems and methods for generating random bits by using physical variations present in material samples are provided. Initial random bit streams are derived from measured material properties for the material samples. In some cases, secondary random bit streams are generated by applying a randomness extraction algorithm to the derived initial random bit streams.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: June 25, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Jennifer F. Schumacher, Glenn E. Casner, Yanina Shkel, Andrew P. Bonifas, Anthony J. Sabelli, Brian J. Stankiewicz, John A. Wheatley, Ravishankar Sivalingam, Robert W. Shannon
  • Patent number: 10296789
    Abstract: Techniques for creating and manipulating software notes representative of physical notes are described. A computing device includes a processor, an image collection module executable by the processor and configured to receive an input image of an environment having a plurality of overlapping physical notes, and an image processing engine executable by the processor and configured to process the input image with the computing device to identify the plurality of overlapping physical notes in the input image. The image processing engine determines a boundary of each note in the plurality of overlapping physical notes in the input image, and generates a plurality of digital notes corresponding to the determined boundary of each of the overlapping physical notes identified in the input image.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: May 21, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Guruprasad Somasundaram, Ravishankar Sivalingam, David M. Mahli, Cristin E. Moran, Richard J. Moore, Pontus Axelsson, Michael Rotstein, Roland Persson
  • Publication number: 20190114374
    Abstract: Methods for aligning a digital 3D model of teeth represented by a 3D mesh to a desired orientation within a 3D coordinate system. The method includes receiving the 3D mesh in random alignment and changing an orientation of the 3D mesh to align the digital 3D model of teeth with a desired axis in the 3D coordinate system. The methods can also detect a gum line in the digital 3D model to remove the gingiva from the model.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 18, 2019
    Inventors: Guruprasad Somasundaram, Evan J. Ribnick, Ravishankar Sivalingam, Shannon D. Scott, Golshan Golnari, Aya Eid
  • Publication number: 20190043255
    Abstract: Reconstructed surface meshes can be generated based on a plurality of received surface meshes. Each surface mesh can include vertices and faces representing an object. The received surface meshes can be assigned to one of a plurality of groups, and a region of interest of each surface mesh within each group can be aligned. The reconstructed surface meshes can be generated based on the aligned regions of interest for each group.
    Type: Application
    Filed: February 3, 2017
    Publication date: February 7, 2019
    Inventors: Guruprasad Somasundaram, Robert W. Shannon, Evan J. Ribnick, Ravishankar Sivalingam
  • Patent number: 10192003
    Abstract: Methods for aligning a digital 3D model of teeth represented by a 3D mesh to a desired orientation within a 3D coordinate system. The method includes receiving the 3D mesh in random alignment and changing an orientation of the 3D mesh to align the digital 3D model of teeth with a desired axis in the 3D coordinate system. The methods can also detect a gum line in the digital 3D model to remove the gingiva from the model.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: January 29, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Guruprasad Somasundaram, Evan J. Ribnick, Ravishankar Sivalingam, Shannon D. Scott, Golshan Golnari, Aya Eid