Patents by Inventor Yifang Liu

Yifang Liu 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: 20250021571
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing content items based on a location of a user's attention in a map interface. In one aspect, a method includes receiving data specifying one or more map attention spots in a viewport of a map interface presented at a user device. Each map attention spot is a location on a map of the map interface corresponding to a specified amount of user activity. Content items are identified for presentation with the map. For each content item and map attention spot, a distance between a presentation location for the content item on the map and a location of the identified map attention spot on the map is determined. A rank score for the content item based at least on a respective content item score for the content item and each determined distance for the content item.
    Type: Application
    Filed: July 24, 2024
    Publication date: January 16, 2025
    Inventor: Yifang Liu
  • Publication number: 20240409466
    Abstract: A mining grouting reinforcement material is provided and includes a component A including a sodium silicate solution and an amino acid salt, and a component B including an isocyanate, a plasticizer, a filler and a molecular bridging agent. A specific gravity of the filler is 2 to 8.
    Type: Application
    Filed: May 22, 2024
    Publication date: December 12, 2024
    Inventors: Xiaofeng Yu, Enqing Xie, Gang Sun, Yuchao Wang, Dong Shen, Mingkun Zhang, Kai Wang, Chaohe Hu, Guangfeng Bai, Dezhi Zhang, Yifang Liu, Weihua Liu
  • Patent number: 12072898
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing content items based on a location of a user's attention in a map interface. In one aspect, a method includes receiving data specifying one or more map attention spots in a viewport of a map interface presented at a user device. Each map attention spot is a location on a map of the map interface corresponding to a specified amount of user activity. Content items are identified for presentation with the map. For each content item and map attention spot, a distance between a presentation location for the content item on the map and a location of the identified map attention spot on the map is determined. A rank score for the content item based at least on a respective content item score for the content item and each determined distance for the content item.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: August 27, 2024
    Assignee: GOOGLE LLC
    Inventor: Yifang Liu
  • Patent number: 11953901
    Abstract: An autonomous vehicle includes one or more sensors for detecting an object in an environment surrounding the autonomous vehicle and a vehicle computing system comprising one or more processors receiving canonical route data associated with at least one canonical route, and controlling travel of the autonomous vehicle based on sensor data from the one or more sensors and the canonical route data associated with the at least one canonical route. The at least one canonical route comprises at least one roadway connected with another roadway in a plurality of roadways in a geographic location that satisfies at least one route optimization function derived based on trip data associated with one or more traversals of the plurality of roadways in a geographic location by one or more autonomous vehicles.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: April 9, 2024
    Assignee: UATC, LLC
    Inventors: Andrew Raymond Sturges, Alexander Edward Chao, Yifang Liu, Xiaodong Zhang, Richard Brian Donnelly, Bryan John Nagy, Jeff Schneider, Collin Christopher Otis
  • Publication number: 20230391669
    Abstract: The present disclosure provides a grouting reinforcement filler for mining and a preparation method thereof The grouting reinforcement filler for mining includes a first component and a second component. The first component includes 100 to 130 parts by weight of a polyol polymer, 0.8 to 1.2 parts by weight of a catalyst, 0.1 to 0.3 parts by weight of a foaming agent, and 0.5 to 1.5 parts by weight of a surfactant, and the second component includes 65 to 85 parts by weight of polyisocyanate, 5 to 15 parts by weight of a modifier, 10 to 20 parts by weight of a plasticizer, and 10 to 15 parts by weight of a reactive flame retardant.
    Type: Application
    Filed: March 13, 2023
    Publication date: December 7, 2023
    Inventors: Xiaofeng YU, Yuchao WANG, Dong SHEN, Lizong LIU, Guangfeng BAI, Yifang LIU, Mingkun ZHANG, Mengyuan JIA, Enqing XIE
  • Patent number: 11644973
    Abstract: An electronic device, which may be handheld, is provided with a touch sensor and display screen. The display screen may be on a front surface of the device, and the touch sensor may be on a rear surface. Virtual keyboard key contact areas are responsive to user touch inputs, without providing any visual indicia on the display screen indicative of the positions associated with the key contact areas. Key contact area positions can be dynamically adjusted in response to locations on the touch sensitive input surface of user touch inputs.
    Type: Grant
    Filed: March 15, 2022
    Date of Patent: May 9, 2023
    Inventor: Yifang Liu
  • Publication number: 20220197502
    Abstract: An electronic device, which may be handheld, is provided with a touch sensor and display screen. The display screen may be on a front surface of the device, and the touch sensor may be on a rear surface. Virtual keyboard key contact areas are responsive to user touch inputs, without providing any visual indicia on the display screen indicative of the positions associated with the key contact areas. Key contact area positions can be dynamically adjusted in response to locations on the touch sensitive input surface of user touch inputs.
    Type: Application
    Filed: March 15, 2022
    Publication date: June 23, 2022
    Inventor: Yifang Liu
  • Publication number: 20220138809
    Abstract: When a content item is initially served to a client device, the content item may result in an impression effect. As time elapses, the initial impression may fade. Such a decay of the impression effect may be predicted through the use of a predictive model. In some implementations, one or more impression effect parameters may be accessed and used with the predictive model to determine a decay factor or predicted value that incorporates the impression effect decay for a content item. A value, such as a score, may be determined based on the decay factor or the predicted value and a bid associated with a content item. A content item may be selected based on the determined value and data to effect presentation of the content item may be provided.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Applicant: Google LLC
    Inventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
  • Patent number: 11281373
    Abstract: A handheld electronic device is provided with touch sensors on multiple different surfaces of the device, such as a front display, a rear surface, and one or more side surfaces. Haptic gestures on the various sensors may be processed as user interaction inputs for an operating system and/or application software. Such a configuration may be utilized for a typing keyboard on a rear surface of a device, leaving the front display available for content other than a keyboard. Such a device with multiple touch sensors may also be effectively utilized to efficiently manipulate object representations rendered in three or more dimensions in a scene. Touch inputs may be dynamically mapped, further assisting in convenient usage of surfaces that may not be directly within a user's line of sight for input.
    Type: Grant
    Filed: May 7, 2019
    Date of Patent: March 22, 2022
    Inventor: Yifang Liu
  • Patent number: 11250479
    Abstract: When a content item is initially served to a client device, the content item may result in an impression effect. As time elapses, the initial impression may fade. Such a decay of the impression effect may be predicted through the use of a predictive model. In some implementations, one or more impression effect parameters may be accessed and used with the predictive model to determine a decay factor or predicted value that incorporates the impression effect decay for a content item. A value, such as a score, may be determined based on the decay factor or the predicted value and a bid associated with a content item. A content item may be selected based on the determined value and data to effect presentation of the content item may be provided.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: February 15, 2022
    Assignee: Google LLC
    Inventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
  • Patent number: 11100114
    Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for providing content items based on a location of a user's attention in a map interface. In one aspect, a method includes receiving data specifying one or more map attention spots in a viewport of a map interface presented at a user device. Each map attention spot is a location on a map of the map interface corresponding to a specified amount of user activity. Content items are identified for presentation with the map. For each content item and map attention spot, a distance between a presentation location for the content item on the map and a location of the identified map attention spot on the map is determined. A rank score for the content item based at least on a respective content item score for the content item and each determined distance for the content item.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: August 24, 2021
    Assignee: Google LLC
    Inventor: Yifang Liu
  • Publication number: 20200356258
    Abstract: A handheld electronic device is provided with touch sensors on multiple different surfaces of the device, such as a front display, a rear surface, and one or more side surfaces. Haptic gestures on the various sensors may be processed as user interaction inputs for an operating system and/or application software. Such a configuration may be utilized for a typing keyboard on a rear surface of a device, leaving the front display available for content other than a keyboard. Such a device with multiple touch sensors may also be effectively utilized to efficiently manipulate object representations rendered in three or more dimensions in a scene. Touch inputs may be dynamically mapped, further assisting in convenient usage of surfaces that may not be directly within a user's line of sight for input.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Inventor: Yifang Liu
  • Patent number: 10832158
    Abstract: Systems and techniques are provided for determining mutual information with absolute dependency for feature selection. Items may be received from a dataset. Each item may include two random variables. A first random variable may be associated with a first range of discrete values, and a second random variable may be associated with a second range of discrete values.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: November 10, 2020
    Assignee: Google LLC
    Inventor: Yifang Liu
  • Publication number: 20200342502
    Abstract: When a content item is initially served to a client device, the content item may result in an impression effect. As time elapses, the initial impression may fade. Such a decay of the impression effect may be predicted through the use of a predictive model. In some implementations, one or more impression effect parameters may be accessed and used with the predictive model to determine a decay factor or predicted value that incorporates the impression effect decay for a content item. A value, such as a score, may be determined based on the decay factor or the predicted value and a bid associated with a content item. A content item may be selected based on the determined value and data to effect presentation of the content item may be provided.
    Type: Application
    Filed: July 14, 2020
    Publication date: October 29, 2020
    Inventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
  • Publication number: 20200264613
    Abstract: An autonomous vehicle includes one or more sensors for detecting an object in an environment surrounding the autonomous vehicle and a vehicle computing system comprising one or more processors receiving canonical route data associated with at least one canonical route, and controlling travel of the autonomous vehicle based on sensor data from the one or more sensors and the canonical route data associated with the at least one canonical route. The at least one canonical route comprises at least one roadway connected with another roadway in a plurality of roadways in a geographic location that satisfies at least one route optimization function derived based on trip data associated with one or more traversals of the plurality of roadways in a geographic location by one or more autonomous vehicles.
    Type: Application
    Filed: May 5, 2020
    Publication date: August 20, 2020
    Inventors: Andrew Raymond Sturges, Alexander Edward Chao, Yifang Liu, Xiaodong Zhang, Richard Brian Donnelly, Bryan John Nagy, Jeff Schneider, Collin Christopher Otis
  • Patent number: 10726453
    Abstract: When a content item is initially served to a client device, the content item may result in an impression effect. As time elapses, the initial impression may fade. Such a decay of the impression effect may be predicted through the use of a predictive model. In some implementations, one or more impression effect parameters may be accessed and used with the predictive model to determine a decay factor or predicted value that incorporates the impression effect decay for a content item. A value, such as a score, may be determined based on the decay factor or the predicted value and a bid associated with a content item. A content item may be selected based on the determined value and data to effect presentation of the content item may be provided.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: July 28, 2020
    Assignee: GOOGLE LLC
    Inventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
  • Patent number: 10671927
    Abstract: The modeling of an impression effect may include generating a content item impression effect distribution. A classification model may be used to determine a period of the content item impression effect distribution based on one or more accessed impression effect parameters. A value for a content item may be determined based, at least in part, on the determined period and a bid associated with the content item. A content item may be selected based on the determined value and data to display the selected content item may be transmitted. In some instances, the determined period may be used to determine or select predictive model for the determined period that outputs a factor to modify the determined value.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: June 2, 2020
    Assignee: Google LLC
    Inventor: Yifang Liu
  • Patent number: 10656645
    Abstract: A method for determining a canonical route includes receiving trip data associated with one or more traversals of a plurality of roadways in a geographic location by one or more autonomous vehicles. The method includes generating at least one canonical route based on the trip data, wherein the at least one canonical route includes at least one roadway connected with another roadway in the plurality of roadways. The method includes providing canonical route data associated with the at least one canonical route to an autonomous vehicle for controlling travel of the autonomous vehicle on the at least one canonical route.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: May 19, 2020
    Assignee: UATC, LLC
    Inventors: Andrew Raymond Sturges, Alexander Edward Chao, Yifang Liu, Xiaodong Zhang, Richard Brian Donnelly, Bryan John Nagy, Jeff Schneider, Collin Christopher Otis
  • Patent number: 10552768
    Abstract: A travel coordination system allows a rider to request a trip with a flexible departure time. The rider can specify a pick-up location, a trip destination, a target trip price, and a departure timeframe for the trip. The travel coordination system attempts to assign the rider to a provider at a point in time during the departure timeframe when the trip price would be less than or equal to the target trip price. The travel coordination system may also guarantee that the rider will pay no more than the target trip price if the travel coordination system determines that the trip price is likely to be lower than the target trip price at some point in time during the departure timeframe.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: February 4, 2020
    Assignee: Uber Technologies, Inc.
    Inventor: Yifang Liu
  • Patent number: 10460411
    Abstract: A method and system for determining and updating a value pertaining to supply and/or demand conditions of a service in a specified geographic region is provided. The method and system enable resources to be managed over multiple geographic regions. The system determines an initial value pertaining to supply and/or demand conditions in the specified geographic area based on data collected from provider and requester devices. The system determines whether the initial value requires real-time update to account for unpredictable and fast-changing variations in supply and/or demand conditions that can cause imbalance in resource allocation across the multiple geographic regions. If the system determines that the initial value requires real-time update, the system generates a real-time value based on supply and/or demand information pertaining to conditions in nearby geographic regions. The system facilitates the provision of the service using real-time value or the initial value, depending on the determination.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: October 29, 2019
    Assignee: Uber Technologies, Inc.
    Inventor: Yifang Liu