Patents by Inventor YANG BAI

YANG BAI 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: 10382645
    Abstract: The present disclosure relates generally to image signal processing, including encoding signals for image data or artwork. A color blend/print model is used to predict signal detectability and visibility as is printed on a particular substrate, which facilitates object grading prior to print runs.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: August 13, 2019
    Assignee: Digimarc Corporation
    Inventors: Yang Bai, Dean H. Chadwick, Jackson B. Bennett, Daniel T. Pinard
  • Publication number: 20190241791
    Abstract: The present invention relates to the field of drilling fluids, and discloses a strong plugging drilling fluid suitable for shale gas wells and a preparation method of the drilling fluid. The drilling fluid contains water, bentonite, a tackifier, a flow pattern regulator, a filtrate reducer, a plugging agent, and a weighting agent, wherein, based on 100 parts by weight of water, the content of the bentonite is 1-10 parts by weight, the content of the tackifier is 5-15 parts by weight, the content of the flow pattern regulator is 4-13 parts by weight, the content of the filtrate reducer is 4-13 parts by weight, the content of the plugging agent is 20-55 parts by weight, and the content of the weighting agent is 10-60 parts by weight; the drilling fluid provided in the present invention employs modified nano-silica as a plugging agent to improve dispersity and particle size distribution in the drilling fluid system.
    Type: Application
    Filed: April 13, 2018
    Publication date: August 8, 2019
    Applicant: Southwest Petroleum University
    Inventors: Yang BAI, Pingya LUO
  • Publication number: 20190246214
    Abstract: The present disclosure provides an MEMS microphone, including a substrate having a back cavity and a capacitor system fixedly disposed on the substrate, where the capacitor system includes a backplane and a vibrating diaphragm that are spaced apart from each other, the backplane includes a backplane insulation layer and a backplane conducting layer disposed on the backplane insulation layer, an outer edge of the backplane conducting layer is provided with a notch, the backplane insulation layer is provided with a first through hole, the first through hole includes a first sound hole disposed in a location corresponding to the notch, and the notch is in communication with the first sound hole. The present disclosure reduces stress concentration of the backplane and reducing a risk of structural failure such as breaking of the backplane.
    Type: Application
    Filed: December 28, 2018
    Publication date: August 8, 2019
    Inventors: Yang Bai, Rui Zhang
  • Publication number: 20190237082
    Abstract: Methods employ sensors in portable devices (e.g., smartphones) both to sense content information (e.g., audio and imagery) and context information. Device processing is desirably dependent on both. For example, some embodiments activate certain processor intensive operations (e.g., content recognition) based on classification of sensed content and context. The context can control the location where information produced from such operations is stored, or control an alert signal indicating, e.g., that sensed speech is being transcribed. Some arrangements post sensor data collected by one device to a cloud repository, for access and processing by other devices. Multiple devices can collaborate in collecting and processing data, to exploit advantages each may have (e.g., in location, processing ability, social network resources, etc.). A great many other features and arrangements are also detailed.
    Type: Application
    Filed: January 30, 2019
    Publication date: August 1, 2019
    Inventors: Tony F. Rodriguez, Yang Bai
  • Patent number: 10368051
    Abstract: A 3D-HEVC inter-frame information hiding method based on visual perception includes steps of information embedding and information extraction. In the step of information embedding, the human visual perception characteristic is considered, stereo salient images are obtained by a stereo image salient model, and the stereo salient images are divided into salient blocks and non-salient blocks with an otsu threshold. The coding quantization parameters are modified according to different modulation rules for different regions. Then, based on the modified quantization parameters, the coding-tree-units are coded to complete the information embedding. In the step of information extraction, no original video is needed, no any side information needs to be transmitted, and the secret information can be blindly extracted.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: July 30, 2019
    Assignee: Ningbo University
    Inventors: Gangyi Jiang, Jing Wang, Fen Chen, Yongqiang Bai, Yang Wang
  • Publication number: 20190208425
    Abstract: Methods and devices for placing an Access Point (AP) are provided. In one aspect, a method includes obtaining a sampling point matrix by performing sampling in a locating area based on a preset sampling spacing, wherein the locating area comprises: a valid area to be covered by a WLAN and an invalid area outside the valid area, calculating a maximum valid signal strength, sequentially selecting a sampling point without placing AP is placed from the sampling point matrix to be a first sampling point at which an AP is to be placed, calculating a newly-added valid signal strength and a newly-added invalid signal strength in a case that the AP to be placed is placed at the first sampling point, and placing the AP to be placed at the first sampling point when preset conditions are satisfied.
    Type: Application
    Filed: August 30, 2017
    Publication date: July 4, 2019
    Inventor: Yang BAI
  • Patent number: 10336932
    Abstract: The present invention discloses a micro-nano composite plugging agent for drilling fluid, a preparation method of the micro-nano composite plugging agent for drilling fluid, a drilling fluid, and an application thereof. The composite plugging agent contains nanometer calcium carbonate, nanometer zinc oxide whiskers, nanometer emulsified paraffin, a flocculating agent, and a lubricant, wherein in the composite plugging agent, the nanometer calcium carbonate is in 10-36 parts by weight, the nanometer zinc oxide whiskers are in 20-40 parts by weight, the nanometer emulsified paraffin is in 30-70 parts by weight, the flocculating agent is in 1-10 parts by weight, and the lubricant is 5-20 parts by weight.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: July 2, 2019
    Assignee: Southwest Petroleum University
    Inventors: Yang Bai, Pingya Luo, Jinsheng Sun, Guancheng Jiang, Jiading Deng, Yan Cheng, Guojun Li
  • Publication number: 20190197674
    Abstract: Image processing performed by a computer (22) includes iterative image reconstruction or refinement (26, 56) that produces a series of update images ending in an iteratively reconstructed or refined image. A difference image (34, 64) is computed between a first update image (30, 60) and a second update image (32, 62) of the series. The difference image is converted to a feature image (40) and is used in the iterative processing (26, 56) or in post-processing (44) performed on the iteratively reconstructed or refined images or images from different reconstruction or refinement techniques. In another embodiment, first and second image reconstructions (81, 83) are performed to generate respective first and second reconstructed images (80, 82). A difference image (84) is computed between two images each selected from the group: the first reconstructed image, an update image of the first reconstruction, the second reconstructed image, and an update image of the second reconstruction.
    Type: Application
    Filed: August 22, 2017
    Publication date: June 27, 2019
    Inventors: Chuanyong BAI, Andriy ANDREYEV, Bin ZHANG, Yang-Ming ZHU, Xiyun SONG, Jinghan YE, Zhiqiang HU
  • Publication number: 20190196781
    Abstract: A computing device receives a trigger to surface commands. A possible set of commands is identified and broken into categories. A category is surfaced for user interaction.
    Type: Application
    Filed: January 24, 2019
    Publication date: June 27, 2019
    Inventors: Chenguang YANG, Annie Y. Bai, Julie C. Seto, James R. Fullmer, Julianne M. Emmons
  • Publication number: 20190188435
    Abstract: A variety of technologies having practical application in retail stores are detailed. One is an improved method of identifying items selected by customers. This method includes receiving sensor data from plural sensors, including (a) ceiling-mounted cameras that monitor tracks of customers through aisles of the store, and (b) inventory sensors that are positioned to monitor removal of stock from store shelves. This received sensor data is employed in evaluating plural alternate item identification hypotheses. These hypotheses include a first hypothesis that a customer selected an item having a first identity, and a second hypothesis that the customer selected an item having a second identity. A confidence score is associated with each of the first and second item selection hypotheses. These confidence scores are refined as sensor data is received, e.g., increasing a confidence score of one hypothesis, and reducing a confidence score of another.
    Type: Application
    Filed: February 15, 2019
    Publication date: June 20, 2019
    Inventors: Bruce L. Davis, Tony F. Rodriguez, Geoffrey B. Rhoads, John D. Lord, Alastair M. Reed, Eric D. Evans, Rebecca L. Gerlach, Yang Bai, John F. Stach, Tomas Filler, Marc G. Footen, Sean Calhoon
  • Patent number: 10297000
    Abstract: A high dynamic range image information hiding method includes embedding secret information and extracting the secret information. The step of embedding secret information includes obtaining three channel values of every pixel in an original high dynamic range image; according to every channel value and corresponding 5-bit exponent of every pixel, determining an embedding significance bit of the information to be embedded in every channel value of every pixel; embedding information into every channel value of every pixel; and obtaining a high dynamic range image embedded with the secret information.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: May 21, 2019
    Assignee: Ningbo University
    Inventors: Gangyi Jiang, Yongqiang Bai, Mei Yu, Yang Wang
  • Publication number: 20190147153
    Abstract: A mechanism is provided for enhancing security access to a data processing system. Responsive to authenticating a first factor of the multi-factor authentication by matching a scanned fingerprint/thumbprint of a user to at least one previously scanned fingerprint/thumbprint in a set of previously scanned fingerprints/thumbprints, a determination is made as to whether a touch pressure level exerted by the user on a touch pressure sensor associated with the data processing system matches at least one previously stored touch pressure level in a set of previously stored touch pressure levels. Responsive to matching the touch pressure level exerted by the user to a previously stored touch pressure level in the set of previously stored touch pressure levels, a second factor of the multi-factor authentication is authenticated. Access is then granted for the user to the data processing system.
    Type: Application
    Filed: November 16, 2017
    Publication date: May 16, 2019
    Inventors: Song Bai, Xiang Cai, Xue Mei Deng, Lu Huang, Yang Liang, Yin Qian
  • Publication number: 20190147350
    Abstract: A method and device for presenting a prediction model, and a method and device for adjusting a prediction model. The method for presenting a prediction model includes: obtaining at least one prediction result of a prediction model for at least one prediction sample; obtaining at least one decision-making tree training sample for training a decision-making tree model according to the at least one prediction sample and the at least one prediction result, the decision-making tree model being used for fitting the prediction model; training the decision-making tree model by using at least one decision-making tree training sample; and visually presenting the trained decision-making tree model. By means of the method, a prediction model hard to understand can be approximated to a decision-making tree model, and the approximated decision-making tree model is presented, so that a user better understands the prediction model according to the presented decision-making tree model.
    Type: Application
    Filed: April 20, 2017
    Publication date: May 16, 2019
    Applicant: The Fourth Paradigm (Beijing) Tech Co Ltd
    Inventors: Yang BAI, Yuqiang CHEN, Wenyuan DAI
  • Patent number: 10282801
    Abstract: The present disclosure relate generally to image signal processing, color science and signal encoding. Signal encoding can be applied to color image data through use of a luminance contrast sensitivity function and a chrominance contrast sensitive function. Of course, other features, combinations and claims are disclosed as well.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: May 7, 2019
    Assignee: Digimarc Corporation
    Inventors: Alastair M. Reed, Kristyn R. Falkenstern, David Berfanger, Yang Bai
  • Publication number: 20190130517
    Abstract: In some arrangements, product packaging is digitally watermarked over most of its extent to facilitate high-throughput item identification at retail checkouts. Imagery of such packaging is analyzed to detect digital watermarking. One claim recites a method utilized at a retail checkout location comprising: receiving imagery representing a packaged item from a digital camera, the packaged item including digital watermarking hidden on its packaging, the packaged item moving relative to the digital camera; determining a region in the imagery corresponding to at least one relatively faster moving object; arranging watermark detection blocks over the determine region; an detecting the digital watermarking from the watermark detection blocks. Of course other claims and combinations are also provided.
    Type: Application
    Filed: September 14, 2018
    Publication date: May 2, 2019
    Inventors: Yang Bai, Eric D. Evans, Tomas Filler
  • Patent number: 10270936
    Abstract: The present disclosure relates generally to encoding signals for spot colors. In one implementation a substitute spot color+CMY tint is selected to replace an original spot color. The CMY tint can be transformed to carry an encoded signal. Of course, other features, combinations and technology are described herein.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: April 23, 2019
    Assignee: Digimarc Corporation
    Inventors: Yang Bai, Kristyn R. Falkenstern, Alastair M. Reed
  • Publication number: 20190097144
    Abstract: Perovskite-based photoactive devices, such as solar cells, include an insulating tunneling layer inserted between the perovskite photoactive material and the electron collection layer to reduce charge recombination and concomitantly provide water resistant properties to the device.
    Type: Application
    Filed: September 13, 2018
    Publication date: March 28, 2019
    Inventors: Jinsong Huang, Xiaopeng Zheng, Qi Wang, Yang Bai, Qingfeng Dong
  • Patent number: 10233377
    Abstract: A gel plugging slurry for well drilling, comprising water, special gel, bridging material, linking material, and packing material, wherein based on 100 parts by weight of the water, the amount of the special gel is 1-15 parts by weight, the amount of the bridging material is 8-20 parts by weight, the amount of the linking material is 20-40 parts by weight, and the amount of the packing material is 25-45 parts by weight. The gel slug plugging method including simple operation and low requirement for ambient environment; besides, the bridging material, linking material and packing material in the gel plugging slurry form stable structures in the gel, and thereby the gel plugging effect can be improved effectively.
    Type: Grant
    Filed: October 8, 2018
    Date of Patent: March 19, 2019
    Assignee: SOUTHWEST PETROLEUM UNIVERSITY
    Inventors: Yang Bai, Pingya Luo, Jiading Deng
  • Patent number: 10233375
    Abstract: The present invention relates to the field of drilling fluids, and discloses a drilling fluid that can inhibit surface hydration of clay and a preparation method of the drilling fluid. The drilling fluid contains water, bentonite, an intercalation inhibitor, a tackifier, a flow pattern regulator, a filtrate reducer, a lubricant, and a weighting agent, wherein, based on 100 parts by weight of water, the content of the bentonite is 2-9 parts by weight, the content of the intercalation inhibitor is 0.3-4 parts by weight, the content of the tackifier is 1-10 parts by weight, the content of the flow pattern regulator is 0.8-7 parts by weight, the content of the filtrate reducer is 1-8 parts by weight, the content of the lubricant is 0.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: March 19, 2019
    Assignee: Southwest Petroleum University
    Inventors: Pingya Luo, Yang Bai, Gang Xie
  • Patent number: 10199042
    Abstract: Methods employ sensors in portable devices (e.g., smartphones) both to sense content information (e.g., audio and imagery) and context information. Device processing is desirably dependent on both. For example, some embodiments activate certain processor intensive operations (e.g., content recognition) based on classification of sensed content and context. The context can control the location where information produced from such operations is stored, or control an alert signal indicating, e.g., that sensed speech is being transcribed. Some arrangements post sensor data collected by one device to a cloud repository, for access and processing by other devices. Multiple devices can collaborate in collecting and processing data, to exploit advantages each may have (e.g., in location, processing ability, social network resources, etc.). A great many other features and arrangements are also detailed.
    Type: Grant
    Filed: September 21, 2017
    Date of Patent: February 5, 2019
    Assignee: Digimarc Corporation
    Inventors: Tony F. Rodriguez, Yang Bai