Patents by Inventor Shuang Song
Shuang Song 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: 11965620Abstract: The present invention discloses a pipeline patrol inspection robot having variable tracks and a control method therefor. The pipeline patrol inspection robot of the present invention includes a robot body, track assemblies symmetrically disposed on a left side and a right side of the robot body, and a movement driving mechanism. The robot body is connected to the track assemblies on the left side and the right side by track fixtures, and track angle adjusting mechanisms are respectively connected between the robot body and the track assemblies on the left side and the right side. By means of the present invention, a track camber angle can be adjusted. In addition, each track angle adjusting mechanism is independent, and has desirable flexibility to adapt to different pipeline environments.Type: GrantFiled: January 4, 2021Date of Patent: April 23, 2024Assignee: SOUTHEAST UNIVERSITYInventors: Aiguo Song, Tianyuan Miao, Bincheng Shao, Baoguo Xu, Guangming Song, Bo Xu, Shuang Liu, Jihai Min
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Publication number: 20240109404Abstract: An intelligent air curtain system on buses based on computer vision technology is provided, the air curtain system includes a data collection system, an information processing system, a terminal control system, and a terminal broadcast system. The data collection system collects video information in a front area. The information processing system includes an object detection part, a safety judgment part, a return air volume monitoring part, a posture judgment part, and an information calculation part. The object detection part and the safety judgment part judge the safety of a driver. The posture judgment part determines whether a passenger wears a mask properly. The information calculation part is configured to calculate a facial temperature of the passenger and transmit the facial temperature to the terminal control system and the terminal broadcast system. The terminal control system is configured to control an air curtain. The terminal broadcast system is configured for reminder.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Inventors: Bin Yang, Xin Zhu, Shuang Yang, Zhiyu Song, Minzhang Liu, Yuwen You
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Publication number: 20240054391Abstract: Computer-implemented systems and methods for training a decentralized model for making a personalized recommendation.Type: ApplicationFiled: April 5, 2022Publication date: February 15, 2024Inventors: Abhradeep Guha Thakurta, Li Zhang, Prateek Jain, Shuang Song, Steffen Rendle, Steve Shaw-Tang Chien, Walid Krichene, Yarong Mu
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Patent number: 11864876Abstract: A light-to-digital converter (2) comprises a light-to-current converter (10); a current integrator (4) with an integrator output (30) resettable to a baseline level; and a counter (18) with a digital output (26), wherein the light-to-current converter (10) is switchably connectable as a positive integration input to the current integrator (4), for, during a light-collecting phase (404-406), integrating a current from the light-to-current converter (10), the integrator output (30) starting from the baseline value and ending at a value to be digitized; a reference current source (14) is switchably connectable as a negative integration input to the current integrator (4), for, during a counting phase (406-408) subsequent to the light-collecting phase (404-406), integrating a reference current from the reference current source (14), the integrator output (30) starting from the value to be digitized and ending at the baseline value, the time spent integrating the reference current corresponding to the value to beType: GrantFiled: May 28, 2020Date of Patent: January 9, 2024Assignees: IMEC VZW, KATHOLIEKE UNIVERSITEIT LEUVEN KU LEUVEN, STICHTING IMEC NEDERLANDInventors: Qiuyang Lin, Jiawei Xu, Shuang Song, Nick Van Helleputte, Filip Tavernier
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Patent number: 11689209Abstract: An analog-to-digital converter, ADC, circuitry, comprises: an integrator connected to a capacitor, the integrator being configured to switch between integrating an analog input signal for ramping an integrator output and integrating a reference input signal for returning integrator output towards a threshold; a comparator for comparing integrator output to the threshold; and a timer for determining a time duration during which the reference input signal is integrated, the time duration providing a digital representation of an analog input signal value; the ADC circuitry further comprising a feedforward noise shaping loop configured to store a quantization error signal based on digitizing a first sample, the comparator being configured to receive a feedforward noise shaping signal for changing the threshold for digitizing a later sample of the analog input signal following the first sample.Type: GrantFiled: February 1, 2022Date of Patent: June 27, 2023Assignees: KATHOLIEKE UNIVERSITEIT LEUVEN, IMEC VZW, STICHTING IMEC NEDERLANDInventors: Qiuyang Lin, Nick Van Helleputte, Roland Van Wegberg, Shuang Song
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Patent number: 11667214Abstract: A virtual co-phase power supply system topology suitable for an electrical sectioning device at a sectioning and paralleling post (SP) includes a step-down transformer TR1. A primary winding of the step-down transformer TR1 is electrically connected to a traction feeding section ?2 in a train from a traction feeding section ?1 to the traction feeding section ?2. Each secondary winding is electrically connected to one rectifier separately. DC buses output from the rectifiers are connected in parallel. The other end of the DC bus is electrically connected to a plurality of parallel inverter units. An LC filter is provided on a DC bus between a rectifier unit and the inverter unit, and the LC filter is connected in parallel to an energy storage unit. After filtering through the LC filter, an output end of the inverter unit is electrically connected to a primary winding of a step-up transformer TR2.Type: GrantFiled: September 15, 2020Date of Patent: June 6, 2023Assignee: Southwest Jiaotong UniversityInventors: Chenglin Xiong, Rong Mei, Shuang Song, Zhiwei Song, Lu Huang
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Publication number: 20230103911Abstract: A method include obtaining a set of differentially private (DP) gradients each generated based on processing corresponding private data, and obtaining a set of public gradients each generated based on processing corresponding public data. The method also includes applying mirror descent to the set of public gradients to learn a geometry for the set of DP gradients, and reshaping the set of DP gradients based on the learned geometry. The method further includes training a machine learning model based on the reshaped set of DP gradients.Type: ApplicationFiled: October 4, 2022Publication date: April 6, 2023Applicant: Google LLCInventors: Om Dipakbhai Thakkar, Ehsan Amid, Arun Ganesh, Rajiv Mathews, Swaroop Ramaswamy, Shuang Song, Thomas Steinke, Vinith Suriyakumar, Abhradeep Guha Thakurta
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Patent number: 11615615Abstract: The present invention discloses a method and an apparatus for extracting mountain landscape buildings based on high-resolution remote sensing images. The method comprises: segmenting a remote sensing image, and extracting non-vegetation areas from the remote sensing image by using NDVI; segmenting the non-vegetation areas, and extracting building areas by using NDBI; segmenting the building areas again, and calculating a normalized difference build shadow index NSBI of each patch; calculating NSBI separator of each patch in the non-vegetation areas and setting a separator threshold, and extracting landscape building areas based on the threshold. In the present invention, by introducing a near infrared band in the remote sensing image spectrum, in which there is a significant difference between shadows and non-shadows, the influence of large shadow areas in mountainous shady areas in the remote sensing image on the result of extraction is reduced.Type: GrantFiled: January 21, 2021Date of Patent: March 28, 2023Assignee: SOUTHEAST UNIVERSITYInventors: Zhe Li, Yukun He, Yuning Cheng, Xiang Zhou, Kaiyu Zhao, Xiao Han, Feifei Chen, Shuang Song, Xinyi Lu, Xiaoshan Lin
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Publication number: 20230093680Abstract: A data fusion method is provided. In one embodiment, the method comprises: acquiring a rotation angle of a laser transmitter of a lidar; selecting, according to a predetermined correspondence between rotation angle intervals and image sensors, an image sensor corresponding to a rotation angle interval in which the obtained rotation angle of the laser emitter is located as a specified image sensor, sending a trigger signal to the specified image sensor, to enable the specified image sensor to acquire an image, receiving the image and a point cloud that is acquired and returned by the lidar within the rotation angle interval in which the obtained rotation angle is located, and fuse information of pixels in the image and information of points in the point cloud according to pose change information of a vehicle in a process of acquiring the image and the point cloud.Type: ApplicationFiled: April 21, 2021Publication date: March 23, 2023Inventor: Shuang SONG
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Publication number: 20220255554Abstract: An analog-to-digital converter, ADC, circuitry, comprises: an integrator connected to a capacitor, the integrator being configured to switch between integrating an analog input signal for ramping an integrator output and integrating a reference input signal for returning integrator output towards a threshold; a comparator for comparing integrator output to the threshold; and a timer for determining a time duration during which the reference input signal is integrated, the time duration providing a digital representation of an analog input signal value; the ADC circuitry further comprising a feedforward noise shaping loop configured to store a quantization error signal based on digitizing a first sample, the comparator being configured to receive a feedforward noise shaping signal for changing the threshold for digitizing a later sample of the analog input signal following the first sample.Type: ApplicationFiled: February 1, 2022Publication date: August 11, 2022Inventors: Qiuyang LIN, Nick VAN HELLEPUTTE, Roland VAN WEGBERG, Shuang SONG
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Patent number: 11369275Abstract: A device for read-out of a photoplethysmography (PPG) signal comprises: a photodiode, which is configured to detect a PPG signal, the photodiode comprising a first and a second terminal; and a read-out circuitry for reading out the PPG signal, wherein an input stage is connected to receive a first and a second input signal from the terminals and a DC bias voltage, and wherein the input stage is configured for current sensing to provide a fully differential amplification of the input signals to a first and a second current signal, and wherein an output stage is configured to receive the current signals, wherein the current signals comprise an AC and a DC component of the PPG signal, and wherein the output stage is configured to generate a differential output voltage through a gain component.Type: GrantFiled: December 10, 2019Date of Patent: June 28, 2022Assignees: IMEC VZW, STICHTING IMEC NEDERLANDInventors: Shuang Song, Jiawei Xu, Roland Van Wegberg, Nick Van Helleputte
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Publication number: 20220125827Abstract: The disclosure provides application of sulfated polysaccharides in resisting novel coronavirus, belonging to the technical field of biomedicine. It is confirmed in the disclosure that by binding to an S protein on the surface of the SARS-CoV-2 virus, the sea cucumber polysaccharides, fucoidans or carrageenans can prevent cell membranes of body cells from adsorbing and internalizing the SARS-CoV-2 virus, thereby preventing the SARS-CoV-2 virus from infecting the body cells, which indicates that the sea cucumber polysaccharides, fucoidans or carrageenans have the effect of prevention and treatment of pneumonia caused by the novel coronavirus. These polysaccharides can be used to prepare protective articles having functions of prevention and treatment of novel coronavirus infection, for example: inhalations, hand lotions, oral liquids and respirators.Type: ApplicationFiled: January 4, 2022Publication date: April 28, 2022Inventors: Beiwei ZHU, Shuang SONG, Xiuping DONG, Chengrong WEN, Chunqing AI, Dayong ZHOU, Hang QI, Libo QI, Dongmei LI, Jingfeng YANG
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Patent number: 11159100Abstract: A modified modulated wave acquisition method includes: obtaining a modulated wave uaba; calculating a difference between the given value iNq* and the actual value iNq of the q-axis component of a grid side current, inputting the result to a proportional integral (PI) controller, and multiplying an output of the PI controller by cos ?t to obtain a modulated wave offset ?uaba; and calculating a difference between the modulated wave uaba and the modulated wave offset ?uaba to obtain a modified modulation wave uaba?, where ?t is a grid voltage phase in a sinusoidal case. The MPC method for a single-phase cascaded H-bridge rectifier includes: obtaining the modified modulated wave uaba?, where the component iNq* is 0; and replacing the modulated wave uaba with the modified modulated wave uaba? to perform MPC for the single-phase cascaded H-bridge rectifier.Type: GrantFiled: August 19, 2020Date of Patent: October 26, 2021Assignee: SOUTHWEST JIAOTONG UNIVERSITYInventors: Xiaoyun Feng, Chenglin Xiong, Rong Mei, Shuang Song, Zhiwei Song, Lu Huang
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Publication number: 20210276456Abstract: A virtual co-phase power supply system topology suitable for an electrical sectioning device at a sectioning and paralleling post (SP) includes a step-down transformer TR1. A primary winding of the step-down transformer TR1 is electrically connected to a traction feeding section ?2 in a train from a traction feeding section ?1 to the traction feeding section ?2. Each secondary winding is electrically connected to one rectifier separately. DC buses output from the rectifiers are connected in parallel. The other end of the DC bus is electrically connected to a plurality of parallel inverter units. An LC filter is provided on a DC bus between a rectifier unit and the inverter unit, and the LC filter is connected in parallel to an energy storage unit. After filtering through the LC filter, an output end of the inverter unit is electrically connected to a primary winding of a step-up transformer TR2.Type: ApplicationFiled: September 15, 2020Publication date: September 9, 2021Applicant: Southwest Jiaotong UniversityInventors: Chenglin XIONG, Rong MEI, Shuang SONG, Zhiwei SONG, Lu HUANG
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Publication number: 20210265921Abstract: A modified modulated wave acquisition method includes: obtaining a modulated wave uaba; calculating a difference between the given value iNq* and the actual value iNq of the q-axis component of a grid side current, inputting the result to a proportional integral (PI) controller, and multiplying an output of the PI controller by cos ?t to obtain a modulated wave offset ?uaba; and calculating a difference between the modulated wave uaba and the modulated wave offset ?uaba to obtain a modified modulation wave uaba?, where ?t is a grid voltage phase in a sinusoidal case. The MPC method for a single-phase cascaded H-bridge rectifier includes: obtaining the modified modulated wave uaba?, where the component iNq* is 0; and replacing the modulated wave uaba with the modified modulated wave uaba? to perform MPC for the single-phase cascaded H-bridge rectifier.Type: ApplicationFiled: August 19, 2020Publication date: August 26, 2021Applicant: Southwest Jiaotong UniversityInventors: Xiaoyun FENG, Chenglin XIONG, Rong MEI, Shuang SONG, Zhiwei SONG, Lu HUANG
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Publication number: 20210166020Abstract: The present invention discloses a method and an apparatus for extracting mountain landscape buildings based on high-resolution remote sensing images. The method comprises: segmenting a remote sensing image, and extracting non-vegetation areas from the remote sensing image by using NDVI; segmenting the non-vegetation areas, and extracting building areas by using NDBI; segmenting the building areas again, and calculating a normalized difference build shadow index NSBI of each patch; calculating NSBI separator of each patch in the non-vegetation areas and setting a separator threshold, and extracting landscape building areas based on the threshold. In the present invention, by introducing a near infrared band in the remote sensing image spectrum, in which there is a significant difference between shadows and non-shadows, the influence of large shadow areas in mountainous shady areas in the remote sensing image on the result of extraction is reduced.Type: ApplicationFiled: January 21, 2021Publication date: June 3, 2021Inventors: Zhe LI, Yukun HE, Yuning CHENG, Xiang ZHOU, Kaiyu ZHAO, Xiao HAN, Feifei CHEN, Shuang SONG, Xinyi LU, Xiaoshan LIN
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Publication number: 20200375484Abstract: A light-to-digital converter (2) comprises a light-to-current converter (10); a current integrator (4) with an integrator output (30) resettable to a baseline level; and a counter (18) with a digital output (26), wherein the light-to-current converter (10) is switchably connectable as a positive integration input to the current integrator (4), for, during a light-collecting phase (404-406), integrating a current from the light-to-current converter (10), the integrator output (30) starting from the baseline value and ending at a value to be digitized; a reference current source (14) is switchably connectable as a negative integration input to the current integrator (4), for, during a counting phase (406-408) subsequent to the light-collecting phase (404-406), integrating a reference current from the reference current source (14), the integrator output (30) starting from the value to be digitized and ending at the baseline value, the time spent integrating the reference current corresponding to the value to beType: ApplicationFiled: May 28, 2020Publication date: December 3, 2020Inventors: Qiuyang LIN, Jiawei XU, Shuang SONG, Nick VAN HELLEPUTTE, Filip TAVERNIER
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Publication number: 20200187788Abstract: A device for read-out of a photoplethysmography (PPG) signal comprises: a photodiode, which is configured to detect a PPG signal, the photodiode comprising a first and a second terminal; and a read-out circuitry for reading out the PPG signal, wherein an input stage is connected to receive a first and a second input signal from the terminals and a DC bias voltage, and wherein the input stage is configured for current sensing to provide a fully differential amplification of the input signals to a first and a second current signal, and wherein an output stage is configured to receive the current signals, wherein the current signals comprise an AC and a DC component of the PPG signal, and wherein the output stage is configured to generate a differential output voltage through a gain component.Type: ApplicationFiled: December 10, 2019Publication date: June 18, 2020Inventors: Shuang SONG, Jiawei XU, Roland Van WEGBERG, Nick Van HELLEPUTTE
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Patent number: 10437648Abstract: A method, system and computer program product for load balancing of graph processing workloads. Synthetic proxy graphs are generated to characterize machines' graph processing speeds in a cluster. Each of the graph applications executing in the cluster is profiled using the synthetic graphs to form profiling sets. These formed profiling sets are run among the machines in the cluster to capture the machines' graph processing speeds. A metric for each of the graph applications is computed from a relative speedup among the machines in the cluster and/or the graph processing speeds. A graph file of a natural graph and a graph application are loaded. A metric out of the computed metrics is selected based on the graph application. The natural graph is then partitioned into multiple chunks which is distributed onto two or more machines in the cluster based on the selected metric and a user selected partitioning algorithm.Type: GrantFiled: June 23, 2017Date of Patent: October 8, 2019Assignee: Board of Regents, The University of Texas SystemInventors: Lizy Kurian John, Shuang Song, Andreas Gerstlauer
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Publication number: 20190192079Abstract: A system for motion artifact reduction in a photoplethysmogram, PPG, signal representing heart activity of a subject, comprises: a processing unit, said processing unit being configured to: receive a PPG signal carrying information of heart activity of the subject; receive a motion reference signal carrying information of a motion of the subject; form a PPG time-frequency representation, based on the PPG signal, and a motion reference time-frequency representation, based on the motion reference signal; and subtract a weighted representation of the motion reference time-frequency representation from the PPG time-frequency representation for reducing a motion artifact component in the PPG time-frequency representation and form a cleaned time-varying frequency spectrum of the PPG signal.Type: ApplicationFiled: December 22, 2018Publication date: June 27, 2019Inventors: Willemijn GROENENDAAL, Yifan ZHANG, Shuang SONG, Rik VULLINGS