Patents by Inventor Renwei Yan

Renwei Yan 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).

  • Patent number: 10262230
    Abstract: A two-dimensional (2D) image and a three-dimensional (3D) of an environment may be captured. Upon identifying a location and/or contour of an object from the 3D image, the object from the 3D image may be mapped onto the 2D image. The object, including its location and contour, may be identified from the 2D image. Based at least partly on a comparison between the object from the 3D image and the object from the 2D image, a disparity may be calculated. The location and contour of the object may be determined when it is determined that the disparity is less than or equal to a predetermined threshold. Otherwise, the object from the 3D image may be remapped onto the 2D image.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: April 16, 2019
    Assignee: Amazon Technologies, Inc.
    Inventors: Renwei Yan, Samuel Henry Chang, Edward Dietz Crump
  • Patent number: 9874977
    Abstract: A sequence of 3D hand poses may be used to define a hand gesture, and different hand gestures may be represented by different sequences of poses. One or more hand gestures may be used to generate a virtual input device. Another one or more hand gestures may subsequently be used to provide input via the virtual input device.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: January 23, 2018
    Assignee: Amazon Technologies, Inc.
    Inventors: Olusanya T. Soyannwo, Renwei Yan, Edward Dietz Crump, Sankara Narayana Hemanth Meenakshisundaram
  • Patent number: 9759994
    Abstract: Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: September 12, 2017
    Assignee: Amazon Technologies, Inc.
    Inventors: Olusanya Temitope Soyannwo, Renwei Yan, Edward Dietz Crump, Weijian Wang, Samuel Henry Chang, Ning Yao
  • Patent number: 9285894
    Abstract: Described herein are systems and devices for mitigating multi-path interference in optical time-of-flight systems. An input surface is configured with a pattern comprising predominately low albedo material and a plurality of decimated high albedo features. The low albedo material is configured to minimize reflectance of light emitted by an emitter. The high albedo material is configured to reflect more of the light than the low albedo material. The low and high albedo materials, or an additional material, may be used to provide a high albedo material in visible light wavelengths, configured for use as a projection surface.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: March 15, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Eric Wang, Renwei Yan, Christopher David Coley, Ronald Joseph Degges, Jr., Louis Leroi Legrand, III
  • Patent number: 9280973
    Abstract: In a content browsing environment, a system analyzes content to identify audio commands to be made available to users. The audio commands may be chosen so that they are easily differentiable from each other when using machine-based speech recognition techniques. When the content is displayed, the system monitors a user's speech to detect user utterances corresponding to the audio commands and performs content navigation in response to the user utterances.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: March 8, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Olusanya T. Soyannwo, Ramy S. Sadek, Edward Dietz Crump, Siddarth Raghunathan, Renwei Yan
  • Patent number: 9275302
    Abstract: A two-dimensional (2D) image and a three-dimensional (3D) of an environment may be captured. Upon identifying a location and/or contour of an object from the 3D image, the object from the 3D image may be mapped onto the 2D image. The object, including its location and contour, may be identified from the 2D image. Based at least partly on a comparison between the object from the 3D image and the object from the 2D image, a disparity may be calculated. The location and contour of the object may be determined when it is determined that the disparity is less than or equal to a predetermined threshold. Otherwise, the object from the 3D image may be remapped onto the 2D image.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: March 1, 2016
    Assignee: Amazon Technologies, Inc.
    Inventors: Renwei Yan, Samuel Henry Chang, Edward Dietz Crump
  • Patent number: 9197870
    Abstract: Techniques are described for performing automatic focusing of a projected image on a mobile projection surface. Specific regions of the projected image are identified that are likely to be desired to stay in optimal focus, and attributes of those specific regions, such as sharpness and contrast, can be used to determine the need to refocus the image. Advanced knowledge of the image data being projected can be utilized to determine the specific regions of the projected image that require monitoring for optimal focusing.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: November 24, 2015
    Assignee: Amazon Technologies, Inc.
    Inventors: Olusanya T. Soyannwo, Samuel Henry Chang, Edward Dietz Crump, Weijian Wang, Renwei Yan, Ning Yao