Patents by Inventor Wen Gao
Wen Gao 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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Patent number: 12368822Abstract: A visual computing system is disclosed. The visual computing system may include a front-end device, an edge service and a cloud service which are in communication connection, the front-end device is configured to output compressed video data and feature data, the edge service is configured to store the video data, and converge the feature data, transmit various types of data and control commands, and the cloud service is configured to store algorithm models used to support various applications, and return a model stream according to a model query command, realizing a data transmission architecture with multiple streams of video stream, feature stream, and model stream in parallel, and a system architecture of end, edge, and cloud collaboration.Type: GrantFiled: April 13, 2021Date of Patent: July 22, 2025Assignee: PENG CHENG LABORATORYInventors: Wen Gao, Yaowei Wang, Xinbei Bai, Wen Ji, Yonghong Tian
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Patent number: 12355978Abstract: Systems, devices, and methods for performing video coding for machine (VCM) image enhancement, including obtaining a coded image from a coded bitstream; obtaining enhancement parameters corresponding to the coded image; decoding the coded image using a VCM decoding module to generate a decoded image; generating an enhanced image using an enhancement module based on the decoded image and the enhancement parameters, wherein the enhancement parameters are optimized for one of a human vision VCM task, a machine vision VCM task, and a human-machine hybrid vision VCM task; providing at least one of the decoded image and the enhanced image to at least one of a human vision module and a machine vision module for performing the one of the human vision VCM task, the machine vision VCM task, and the human-machine hybrid vision VCM task.Type: GrantFiled: December 6, 2022Date of Patent: July 8, 2025Assignee: TENCENT AMERICA LLCInventors: Wen Gao, Xiaozhong Xu, Shan Liu
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Publication number: 20250214487Abstract: A battery self-heating control system includes a battery pack, a winding, a first switch assembly, a second switch assembly, a capacitor, and a controller. The battery pack includes a first battery group and a second battery group connected in series, a connection line led out between the first and the second battery groups, and connected to one end of the winding. The first switch assembly and the second switch assembly are connected in series, the first switch assembly is electrically connected to a positive electrode of the first battery group and a first end of the capacitor, the second switch assembly is electrically connected to a negative electrode of the second battery group and a second end of the capacitor, the first end and the second end of the capacitor connected to a load. The controller is electrically connected to the first switch assembly and the second switch assembly.Type: ApplicationFiled: February 17, 2025Publication date: July 3, 2025Inventors: Lei YAN, Wen GAO, Junwei ZHANG, Gan SONG
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Publication number: 20250201960Abstract: A battery heating device includes a power battery with a first and a second battery modules, a target winding and a target bridge arm. A first end of the target winding is connected to a negative electrode of the first battery module and a positive electrode of the second battery module, and a second end of the target winding is connected to the midpoint of the target bridge arm. A first end of the target bridge arm is connected to a positive electrode of the first battery module, and a second end of the target bridge arm is connected to a negative electrode of the second battery module. A controller is connected to the target bridge arm, and is configured to: control, in a parking heating mode, the target bridge arm to cause the first and the second battery modules to charge and discharge alternately, thereby heating the power battery.Type: ApplicationFiled: February 28, 2025Publication date: June 19, 2025Inventors: Heping LING, Lei Yan, Linli Zou, Zhengpu Wang, Wen Gao
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Publication number: 20250196719Abstract: A battery self-heating system includes: a power battery pack, a first heating device, a second heating device and a controller. The power battery pack includes a first battery group and a second battery group connected in series; the first heating device includes a first heating sub-device and a second heating sub-device; the second heating device includes a third heating sub-device and a fourth heating sub-device; and the controller is configured to: control the first heating device and the first battery group to be alternately charged and discharged, control the second heating device and the second battery group to be alternately charged and discharged, and control, when a first one of the first battery group and the second battery group is in a discharged state, a second one of the first battery group and the second battery group to be in a charged state.Type: ApplicationFiled: February 25, 2025Publication date: June 19, 2025Inventors: Lei YAN, Wen GAO, Junwei ZHANG, Gan SONG
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Patent number: 12311396Abstract: The present invention discloses a shower device, comprising a shower and a base, the base is provided with a convex boss, the back of the shower 1 is provided with a groove matching the convex boss, and the base is also provided with an elastic buckle, the shower is provided with a clamping slot that can be matched and clamped with the elastic buckle, and another socket for hooking up the shower is also provided on the base. Through the design of the above-mentioned structure, the invention specifically uses the cooperation relationship between the clamping slot and the groove to form a lock position in a certain, so as to avoid the accident that the shower falls off from the base and accidentally injures the child. At the same time, a socket is arranged at the height of the side end of the base, which meets the needs of people who need high-altitude shower, and enhance diversity and flexibility.Type: GrantFiled: December 30, 2021Date of Patent: May 27, 2025Assignee: RUNNER(XIAMEN) CORP.Inventors: bi fu Dai, xin zhan Hu, wen Gao, tao yan Zhang, Gang Yu, zhi liang Lin, wei zhen Chen, yong Lin, lu Lu
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Publication number: 20250162463Abstract: A method for inhibiting vehicle vibration during self-heating of a battery, the method is applicable to a vehicle including a power battery pack, a first motor, and a second motor. The method includes: controlling the power battery pack to output a drive current to the first motor to drive the first motor to rotate, where when the first motor rotates, the first motor drives the second motor to rotate; controlling the power battery pack to output a self-heating current to the second motor to self-heat a power battery; obtaining a real-time rotation speed of the first motor; and controlling a fundamental frequency of the self-heating current according to the real-time rotation speed, to stagger the fundamental frequency and the real-time rotation speed.Type: ApplicationFiled: January 17, 2025Publication date: May 22, 2025Inventors: Heping LING, Lei YAN, Zhen ZHAI, Wen GAO, Ke ZHU
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Patent number: 12301837Abstract: A technique for encoding video for machine vision and human/machine hybrid vision, including receiving image data. The technique may also include detecting a plurality of bounding boxes associated with a plurality of objects of interest in a frame of the image data and detecting a frame-level bounding box for the frame based on coordinates of the plurality of bounding boxes. Then, the technique may include encoding the frame-level bounding box using a first bitrate.Type: GrantFiled: September 28, 2023Date of Patent: May 13, 2025Assignee: TENCENT AMERICA LLCInventors: Wen Gao, Xiaozhong Xu, Shan Liu
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Publication number: 20250142073Abstract: A point cloud encoding method, decoding method, encoding device, and decoding device are disclosed. The point cloud encoding method includes calculating a distance from a first point to a parent point of the first point as a first distance; determining a point in un-encoded points closest to the first point as a second point, and calculating residual values on N coordinate components from the second point to the first point; encoding absolute values of the residual values on the N coordinate components from the second point to the first point; encoding signs of the residual values of the second point based on the residual values of the second point and the first distance. The present disclosure utilizes the geometry position relationship between points in a point cloud to encode the absolute values of residual values and the feasible signs of residual values, thereby improving the encoding efficiency of residual values.Type: ApplicationFiled: August 23, 2022Publication date: May 1, 2025Inventors: Wenbo Zhao, Jing Wang, Ge Li, Wen Gao
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Publication number: 20250069275Abstract: A method and apparatus comprising computer code for mesh coding configured to cause a processor or processors to receive an input dynamic mesh representing a volumetric data of at least one three-dimensional (3D) visual content, wherein the input dynamic mesh comprises a plurality of mesh frames; determine that a mesh frame among the plurality of mesh frames comprises a plurality of texture maps in response to a mesh file associated with the mesh frame indicating that at least two different materials are applied in the mesh frame; determine a material index associated with each triangle face in the mesh frame, wherein a respective material index indicates a texture to be applied to a respective triangle face; and encode material indices associated with the mesh frame of the input dynamic mesh.Type: ApplicationFiled: August 23, 2024Publication date: February 27, 2025Applicant: TENCENT AMERICA LLCInventors: Wen GAO, Jun TIAN, Xiaozhong XU, Shan LIU
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Patent number: 12236649Abstract: Aspects of the disclosure provide methods and apparatuses for point cloud compression and decompression. In some examples, an apparatus for point cloud compression/decompression includes processing circuitry. The processing circuitry determines to use a prediction mode for coding (encoding/decoding) information associated with a current point in a point cloud. In the prediction mode, the information associated with the current point is predicted based on one or more neighbor points of the current point. The processing circuitry calculates, using integer operations, a distance-based weighted average value based on distances of the one or more neighbor points to the current point, and determines the information associated with the current point based on the distance-based weighted average value.Type: GrantFiled: May 23, 2022Date of Patent: February 25, 2025Assignee: Tencent America LLCInventors: Xiang Zhang, Wen Gao, Shan Liu
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Publication number: 20250063194Abstract: In a method, re-parameterization information of a current frame is generated. The re-parameterization information indicates a re-parameterization transform of a color attribute map of the current frame. A corresponding region of the current frame is determined in a color attribute map of a reference frame. Correspondence information of the current frame is encoded in a bitstream that indicates the corresponding region of the current frame in the color attribute map of the reference frame. The color attribute map of the current frame is encoded based on (i) the re-parameterization information of the current frame and (ii) the corresponding region of the current frame in the color attribute map of the reference frame.Type: ApplicationFiled: August 16, 2024Publication date: February 20, 2025Applicant: Tencent America LLCInventors: Jun TIAN, Wen GAO, Xiaozhong XU
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Publication number: 20250042307Abstract: A battery self-heating control method includes: in a first period of each of control periods, configuring a conduction state of an upper bridge arm assembly and a conduction state of a lower bridge arm assembly to be a self-heating state, and in the self-heating state, alternately charging and discharging a first battery pack and/or a second battery pack to heat the battery pack by a current on a second connecting wire between a motor and the battery pack.Type: ApplicationFiled: October 18, 2024Publication date: February 6, 2025Inventors: Heping LING, Lei YAN, Wen GAO, Jinyue XIE, Ke ZHU
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Publication number: 20250046904Abstract: A battery heating system includes: a power battery pack including a first battery assembly and a second battery assembly connected to each other at a connection point, buck-boost inverters connected in parallel to form a first bus terminal and a second bus terminal, and a controller connected to a control terminal of the inverter bridge and configured to control self-heating of the first battery assembly and the second battery assembly. A center line is led out at the connection point. Each buck-boost inverters includes an inverter bridge and an inductor. The first bus terminal is connected to a positive electrode of the power battery pack. The second bus terminal is connected to a negative electrode of the power battery pack. A first terminal of the inductor is connected to a midpoint of the inverter bridge. A second terminal of the inductor is connected to the center line.Type: ApplicationFiled: October 23, 2024Publication date: February 6, 2025Inventors: Heping LING, Lei YAN, Wen GAO, Jinyue XIE
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Publication number: 20250046906Abstract: A battery self-heating device, comprising: a bridge arm converter, an energy storage element, an inductor and a controller. The controller is configured to control, in a preset state, the connection and disconnection of the bridge arm converter, such that a first power battery and a second power battery are respectively charged/discharged by means of the inductor, and each form a freewheeling circuit by means of the energy storage element, so as to realize the continuous heating of the first power battery and the second power battery.Type: ApplicationFiled: October 22, 2024Publication date: February 6, 2025Inventors: Yubo LIAN, Heping LING, Lei YAN, Gan SONG, Wen GAO
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Patent number: 12219140Abstract: A technique for encoding video for machine vision and human/machine hybrid vision, including receiving at a hybrid codec, input including at least one of video or image data, the hybrid codec including a first and second codec wherein the first codec is a traditional codec designed for human consumption and the second codec is a learning-based codec designed for machine vision; compressing the input using the first codec, wherein the compressing includes down-sampling the input using a down-sampling module and up-sampling the compressed input using an up-sampling module producing a residual signal; quantizing the residual signal to obtain a quantized representation of the input; entropy encoding the quantized representation of the input using one or more convolutional filter modules; and training one or more networks using the entropy encoded quantized representation.Type: GrantFiled: September 22, 2022Date of Patent: February 4, 2025Assignee: TENCENT AMERICA LLCInventors: Wen Gao, Xiaozhong Xu, Shan Liu
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Patent number: 12217465Abstract: According to an aspect of the disclosure, a method of point cloud geometry encoding in a point cloud encoder is provided. In the method, geometry coding is performed on a point cloud at a first partition depth. Further, a plurality of largest coding units (LCUs) of the point cloud is determined at a second partition depth. A coding state of a LCU of the plurality of LCUs of the point cloud is set at the second partition depth. The geometry coding is performed on the plurality of LCUs of the point cloud at the second partition depth based on the coding state of the LCU at the second partition depth.Type: GrantFiled: September 3, 2021Date of Patent: February 4, 2025Assignee: TENCENT AMERICA LLCInventors: Wen Gao, Xiang Zhang, Shan Liu
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Patent number: 12206892Abstract: A method and a device for encoding or decoding based on an inter-frame prediction. The method includes steps of: determining a temporal motion vector prediction value of a to-be-processed coding unit, where the temporal motion vector prediction value is a temporal motion vector prediction value of a sub-block, a temporal motion vector of which is obtainable through prediction, in sub-blocks adjacent to the to-be-processed coding unit and/or sub-blocks in the to-be-processed coding unit; determining a motion vector residual prediction value of the to-be-processed coding unit according to the temporal motion vector prediction value; determining a motion vector of a sub-block in the to-be-processed coding unit according to the temporal motion vector prediction value and the motion vector residual prediction value and performing a motion compensation according to the motion vector of the sub-block in the to-be-processed coding unit to determine a prediction block of the to-be-processed coding unit.Type: GrantFiled: October 25, 2019Date of Patent: January 21, 2025Assignee: PEKING UNIVERSITY SHENZHEN GRADUATE SCHOOLInventors: Ronggang Wang, Xi Xie, Kui Fan, Wen Gao
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Patent number: 12192519Abstract: Methods and apparatuses of encoding a video stream encoded using video point cloud coding include obtaining a source point cloud; generating an occupancy map including one or more pixels based on the source point cloud, an occupancy value associated with each pixel being a non-binary value; encoding the occupancy map to generate an encoded occupancy map, wherein a block of the encoded occupancy map corresponds to the one or more pixels of the occupancy map; selecting an occupancy value of the block based on the one or more pixels; and generating an encoded video stream based on the selected occupancy value.Type: GrantFiled: October 7, 2021Date of Patent: January 7, 2025Assignee: TENCENT AMERICA LLCInventors: Xiang Zhang, Weiwei Feng, Wen Gao, Shan Liu, Bing Jian
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Patent number: 12190552Abstract: A method and apparatus for coding information of a point cloud may be performed by at least one processor and comprises: obtaining the point cloud including a set of points in a three-dimensional space; partitioning the point cloud into a tree structure comprising a plurality of nodes at different depths; encoding geometry information of the nodes; and encoding attribute information of the nodes before the entire point cloud is partitioned.Type: GrantFiled: June 2, 2023Date of Patent: January 7, 2025Assignee: TENCENT AMERICA LLCInventors: Wen Gao, Xiang Zhang, Shan Liu