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).
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Publication number: 20250021571Abstract: 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: ApplicationFiled: July 24, 2024Publication date: January 16, 2025Inventor: Yifang Liu
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Publication number: 20240409466Abstract: 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: ApplicationFiled: May 22, 2024Publication date: December 12, 2024Inventors: Xiaofeng Yu, Enqing Xie, Gang Sun, Yuchao Wang, Dong Shen, Mingkun Zhang, Kai Wang, Chaohe Hu, Guangfeng Bai, Dezhi Zhang, Yifang Liu, Weihua Liu
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Patent number: 12072898Abstract: 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: GrantFiled: August 20, 2021Date of Patent: August 27, 2024Assignee: GOOGLE LLCInventor: Yifang Liu
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Patent number: 11953901Abstract: 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: GrantFiled: May 5, 2020Date of Patent: April 9, 2024Assignee: UATC, LLCInventors: Andrew Raymond Sturges, Alexander Edward Chao, Yifang Liu, Xiaodong Zhang, Richard Brian Donnelly, Bryan John Nagy, Jeff Schneider, Collin Christopher Otis
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Publication number: 20230391669Abstract: 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: ApplicationFiled: March 13, 2023Publication date: December 7, 2023Inventors: Xiaofeng YU, Yuchao WANG, Dong SHEN, Lizong LIU, Guangfeng BAI, Yifang LIU, Mingkun ZHANG, Mengyuan JIA, Enqing XIE
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Patent number: 11644973Abstract: 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: GrantFiled: March 15, 2022Date of Patent: May 9, 2023Inventor: Yifang Liu
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Publication number: 20220197502Abstract: 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: ApplicationFiled: March 15, 2022Publication date: June 23, 2022Inventor: Yifang Liu
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Publication number: 20220138809Abstract: 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: ApplicationFiled: January 14, 2022Publication date: May 5, 2022Applicant: Google LLCInventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
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Patent number: 11281373Abstract: 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: GrantFiled: May 7, 2019Date of Patent: March 22, 2022Inventor: Yifang Liu
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Patent number: 11250479Abstract: 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: GrantFiled: July 14, 2020Date of Patent: February 15, 2022Assignee: Google LLCInventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
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Patent number: 11100114Abstract: 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: GrantFiled: August 28, 2017Date of Patent: August 24, 2021Assignee: Google LLCInventor: Yifang Liu
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Publication number: 20200356258Abstract: 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: ApplicationFiled: May 7, 2019Publication date: November 12, 2020Inventor: Yifang Liu
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Patent number: 10832158Abstract: 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: GrantFiled: March 31, 2014Date of Patent: November 10, 2020Assignee: Google LLCInventor: Yifang Liu
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Publication number: 20200342502Abstract: 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: ApplicationFiled: July 14, 2020Publication date: October 29, 2020Inventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
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Publication number: 20200264613Abstract: 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: ApplicationFiled: May 5, 2020Publication date: August 20, 2020Inventors: Andrew Raymond Sturges, Alexander Edward Chao, Yifang Liu, Xiaodong Zhang, Richard Brian Donnelly, Bryan John Nagy, Jeff Schneider, Collin Christopher Otis
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Patent number: 10726453Abstract: 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: GrantFiled: September 14, 2017Date of Patent: July 28, 2020Assignee: GOOGLE LLCInventors: Yifang Liu, Konstantinos Katsiapis, Christopher Kenneth Harris
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Patent number: 10671927Abstract: 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: GrantFiled: July 27, 2017Date of Patent: June 2, 2020Assignee: Google LLCInventor: Yifang Liu
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Patent number: 10656645Abstract: 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: GrantFiled: October 25, 2017Date of Patent: May 19, 2020Assignee: UATC, LLCInventors: Andrew Raymond Sturges, Alexander Edward Chao, Yifang Liu, Xiaodong Zhang, Richard Brian Donnelly, Bryan John Nagy, Jeff Schneider, Collin Christopher Otis
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Patent number: 10552768Abstract: 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: GrantFiled: April 26, 2016Date of Patent: February 4, 2020Assignee: Uber Technologies, Inc.Inventor: Yifang Liu
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Patent number: 10460411Abstract: 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: GrantFiled: August 30, 2016Date of Patent: October 29, 2019Assignee: Uber Technologies, Inc.Inventor: Yifang Liu