Patents by Inventor Jun Ruan

Jun Ruan 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: 11965744
    Abstract: The present disclosure is related to systems and methods for indoor positioning. The method includes obtaining a first location of a subject at a first time point. The method also includes determining one or more motion parameters associated with the subject at least based on one or more sensors carried by the subject. The method further includes determining, based on the first location of the subject and the one or more motion parameters associated with the subject, a second location of the subject at a second time point after the first time point. The method still further includes adjusting, at least based on surroundings information associated with the subject at the second time point, the second location of the subject to determine a target location of the subject.
    Type: Grant
    Filed: November 10, 2020
    Date of Patent: April 23, 2024
    Assignee: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Xiaoqiang Teng, Rongzhi Wang, Jiankuan Li, Zhiwei Ruan, Zongyue Liu, Jun Zhang, Pengfei Xu, Shenggang Bao, Chao Liu
  • Patent number: 11925665
    Abstract: Disclosed an extract that is effective in treating drug addiction and a preparation method therefor. An effective component of the extract has the following chemical structural characteristics: a cholestenol compound with hydroxyl (OH) at position 3 and a double bond between position 5 and position 6, or a cholestenol compound with hydroxyl (OH) at position 3, a double bond between position 5 and position 6 and a double bond between position 22 and position 23. The extract can be extracted from the traditional Chinese medicine Agriolima agrestis. The extract of the present invention is safe in acute toxicity, sedative and hypnotic without physical and psychic dependence, has an inhibitory effect on excitability in mouse caused by morphine and benzedrine and a detoxification treatment effect on the withdrawal symptoms in morphine-dependent rats, and is useful in the development of medications or food for treating drug addiction.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: March 12, 2024
    Assignee: GUANGXI JIUFU BIOTECHNOLOGY CO., LTD
    Inventor: Jun Ruan
  • Patent number: 11912716
    Abstract: Disclosed is a compound, a preparation method and use thereof. The compound of the application is prepared by extracting and separating from Limax, and has significant effects on physiological or psychological dependent detoxification or detoxication. Pharmacological tests have proved that the compound has a significant inhibitory effect on withdrawal jumping symptoms in morphine-dependent animals 1 hour after intragastric administration, and still shows an inhibitory trend after 3 hours. The compound has potential application value in the preparation of medicines, health food, and food for detoxification, detoxication, or similar drug-dependent treatment.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: February 27, 2024
    Assignee: GUANGXI JIUFU BIOTECHNOLOGY CO., LTD
    Inventor: Jun Ruan
  • Patent number: 11347679
    Abstract: Systems and methods for a hybrid system-on-chip usable for predicting performance and power requirements of a host server include a big cores module, including central processing units, for receiving and pre-processing performance and power metrics data of the host server and to allocate computing resources, a small cores module, including massively parallel processing units, for mapping each instance associated with host server in the performance and power metrics data to a corresponding massively parallel processing unit based on the allocated computing resources for a per-instance metrics calculation, and an artificial intelligence (AI) accelerator for calculating performance and power prediction results based on the per-instance calculations from the small cores module.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: May 31, 2022
    Assignee: Alibaba Group Holding Limited
    Inventors: Jun Song, Yi Liu, Lingling Jin, Guan Wang, Ying Wang, Hong Tang, Nan Zhang, Zhengxiong Tian, Yu Zhou, Chao Qian, Shuiwang Liu, Jun Ruan, Bo Yang, Lin Yu, Jiangwei Huang, Hong Zhou, Yijun Lu, Ling Xu, Shiwei Li, Xiaolin Meng
  • Patent number: 11116802
    Abstract: Disclosed are an extract that is effective in treating drug addiction and a preparation method therefor. An effective component of the extract has the following chemical structural characteristics: a cholestenol compound with hydroxyl (OH) at position 3 and a double bond between position 5 and position 6, or a cholestenol compound with hydroxyl (OH) at position 3, a double bond between position 5 and position 6 and a double bond between position 22 and position 23. The extract can be extracted from the traditional Chinese medicine Agriolima agrestis. The extract of the present invention is safe in acute toxicity, sedative and hypnotic without physical and psychic dependence, has an inhibitory effect on excitability in mouse caused by morphine and benzedrine and a detoxification treatment effect on the withdrawal symptoms in morphine-dependent rats, and is useful in the development of medications or food for treating drug addiction.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: September 14, 2021
    Assignee: GUANGXI JIUFU BIOTECHNOLOGY CO., LTD
    Inventor: Jun Ruan
  • Publication number: 20210188865
    Abstract: Disclosed is a compound, a preparation method and use thereof. The compound of the application is prepared by extracting and separating from Limax, and has significant effects on physiological or psychological dependent detoxification or detoxication. Pharmacological tests have proved that the compound has a significant inhibitory effect on withdrawal jumping symptoms in morphine-dependent animals 1 hour after intragastric administration, and still shows an inhibitory trend after 3 hours. The compound has potential application value in the preparation of medicines, health food, and food for detoxification, detoxication, or similar drug-dependent treatment.
    Type: Application
    Filed: March 8, 2021
    Publication date: June 24, 2021
    Inventor: Jun Ruan
  • Patent number: 11000555
    Abstract: Disclosed is a compound, prepared by extracting and separating from Limax. Also disclosed is a method for extracting and separating the compound, which is simple and easy to operate. The compound has sedative and hypnotic effects, and has significant effects on physiological or psychological dependent detoxification or detoxication. It has potential application value for preparing detoxification or detoxication drugs, and provides new ideas for the further development of detoxification drugs.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: May 11, 2021
    Assignee: GUANGXI JIUFU BIOTECHNOLOGY CO., LTD
    Inventor: Jun Ruan
  • Publication number: 20200401093
    Abstract: Systems and methods for a hybrid system-on-chip usable for predicting performance and power requirements of a host server include a big cores module, including central processing units, for receiving and pre-processing performance and power metrics data of the host server and to allocate computing resources, a small cores module, including massively parallel processing units, for mapping each instance associated with host server in the performance and power metrics data to a corresponding massively parallel processing unit based on the allocated computing resources for a per-instance metrics calculation, and an artificial intelligence (AI) accelerator for calculating performance and power prediction results based on the per-instant calculations from the small cores module.
    Type: Application
    Filed: February 8, 2018
    Publication date: December 24, 2020
    Inventors: Jun Song, Yi Liu, Lingling Jin, Guan Wang, Ying Wang, Hong Tang, Nan Zhang, Zhengxiong Tian, Yu Zhou, Chao Qian, Shuiwang Liu, Jun Ruan, Bo Yang, Lin Yu, Jiangwei Huang, Hong Zhou, Yijun Lu, Shao Xu, Shiwei Li, Xiaoli Meng
  • Patent number: 10849934
    Abstract: Disclosed is a compound, prepared by extracting and separating from Limax. Also disclosed is a method for extracting and separating the compound, which is simple and easy to operate. The compound has sedative and hypnotic effects, and has significant effects on physiological or psychological dependent detoxification or detoxication. It has potential application value for preparing detoxification or detoxication drugs, and provides new ideas for the further development of detoxification drugs.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: December 1, 2020
    Assignee: GUANGXI JIUFU BIOTECHNOLOGY CO., LTD
    Inventor: Jun Ruan
  • Publication number: 20200330523
    Abstract: Disclosed is a compound, prepared by extracting and separating from Limax. Also disclosed is a method for extracting and separating the compound, which is simple and easy to operate. The compound has sedative and hypnotic effects, and has significant effects on physiological or psychological dependent detoxification or detoxication. It has potential application value for preparing detoxification or detoxication drugs, and provides new ideas for the further development of detoxification drugs.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Inventor: Jun Ruan
  • Publication number: 20200281990
    Abstract: Disclosed an extract that is effective in treating drug addiction and a preparation method therefor. An effective component of the extract has the following chemical structural characteristics: a cholestenol compound with hydroxyl (OH) at position 3 and a double bond between position 5 and position 6, or a cholestenol compound with hydroxyl (OH) at position 3, a double bond between position 5 and position 6 and a double bond between position 22 and position 23. The extract can be extracted from the traditional Chinese medicine Agriolima agrestis. The extract of the present invention is safe in acute toxicity, sedative and hypnotic without physical and psychic dependence, has an inhibitory effect on excitability in mouse caused by morphine and benzedrine and a detoxification treatment effect on the withdrawal symptoms in morphine-dependent rats, and is useful in the development of medications or food for treating drug addiction.
    Type: Application
    Filed: May 25, 2020
    Publication date: September 10, 2020
    Inventor: Jun RUAN
  • Publication number: 20200199144
    Abstract: Disclosed is a compound, prepared by extracting and separating from Limax. Also disclosed is a method for extracting and separating the compound, which is simple and easy to operate. The compound has sedative and hypnotic effects, and has significant effects on physiological or psychological dependent detoxification or detoxication. It has potential application value for preparing detoxification or detoxication drugs, and provides new ideas for the further development of detoxification drugs.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Inventor: Jun Ruan
  • Publication number: 20190151375
    Abstract: Disclosed are an extract that is effective in treating drug addiction and a preparation method therefor. An effective component of the extract has the following chemical structural characteristics: a cholestenol compound with hydroxyl (OH) at position 3 and a double bond between position 5 and position 6, or a cholestenol compound with hydroxyl (OH) at position 3, a double bond between position 5 and position 6 and a double bond between position 22 and position 23. The extract can be extracted from the traditional Chinese medicine Agriolima agrestis. The extract of the present invention is safe in acute toxicity, sedative and hypnotic without physical and psychic dependence, has an inhibitory effect on excitability in mouse caused by morphine and benzedrine and a detoxification treatment effect on the withdrawal symptoms in morphine-dependent rats, and is useful in the development of medications or food for treating drug addiction.
    Type: Application
    Filed: January 28, 2019
    Publication date: May 23, 2019
    Inventor: Jun RUAN
  • Patent number: 10284072
    Abstract: A voltage regulator includes a high-side device, a low-side device, and a controller. The high-side device includes first and second transistors each coupled between an input terminal and an intermediate terminal, where the first transistor has a higher breakdown voltage than the second transistor. The low-side device is coupled between the intermediate terminal and a ground terminal. The controller is configured to drive the high-side and low-side devices to (a) alternately couple the intermediate terminal to the input terminal and the ground terminal and (b) cause the first transistor to control a voltage across the second transistor during switching transitions of the second transistor.
    Type: Grant
    Filed: July 28, 2017
    Date of Patent: May 7, 2019
    Assignee: Volterra Semiconductor LLC
    Inventors: Marco A. Zuniga, Chiteh Chiang, Yang Lu, Badredin Fatemizadeh, Amit Paul, Jun Ruan, Craig Cassella
  • Patent number: 10147801
    Abstract: The present application features a transistor that includes an n-well region implanted into a surface of a substrate, a gate region, and a source region, and a drain region. The source region is on a first side of the gate region and includes a p-body region in the n-well region. An n+ region and a p+ region are implanted in the p-body region such that the p+ region is below the n+ region. The drain region is on a second side of the gate region and includes an n+ region.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: December 4, 2018
    Assignee: Volterra Semiconductor LLC
    Inventors: Marco A. Zuniga, Yang Lu, Badredin Fatemizadeh, Jayasimha Prasad, Amit Paul, Jun Ruan
  • Publication number: 20170338731
    Abstract: A voltage regulator includes a high-side device, a low-side device, and a controller. The high-side device includes first and second transistors each coupled between an input terminal and an intermediate terminal, where the first transistor has a higher breakdown voltage than the second transistor. The low-side device is coupled between the intermediate terminal and a ground terminal. The controller is configured to drive the high-side and low-side devices to (a) alternately couple the intermediate terminal to the input terminal and the ground terminal and (b) cause the first transistor to control a voltage across the second transistor during switching transitions of the second transistor.
    Type: Application
    Filed: July 28, 2017
    Publication date: November 23, 2017
    Inventors: Marco A. Zuniga, Chiteh Chiang, Yang Lu, Badredin Fatemizadeh, Amit Paul, Jun Ruan, Craig Cassella
  • Patent number: 9722483
    Abstract: A voltage regulator has an input terminal and a ground terminal. The voltage regulator includes a high-side device, a low side device, and a controller. The high-side device is coupled between the input terminal and an intermediate terminal. The high-side device includes first and second transistors each coupled between the input terminal and the intermediate terminal, such that the first transistor controls a drain-source switching voltage of the second transistor. The low-side device is coupled between the intermediate terminal and the ground terminal. The controller drives the high-side and low-side devices to alternately couple the intermediate terminal to the input terminal and the ground terminal.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: August 1, 2017
    Assignee: Volterra Semiconductor LLC
    Inventors: Marco A. Zuniga, Chiteh Chiang, Yang Lu, Badredin Fatemizadeh, Amit Paul, Jun Ruan, Craig Cassella
  • Patent number: 9178408
    Abstract: This document describes systems and techniques related to voltage regulators. The subject matter of this document can be embodied in a method that includes measuring an output current of a switching regulator. The switching regulator includes a high-side transistor and a low side-transistor wherein the high-side transistor and the low-side transistor are driven using a first gate voltage and a second, different gate voltage, respectively. The method also includes adjusting a direct-current (DC) voltage source of the switching regulator such that the first gate voltage is adjusted in accordance with the measured output current.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 3, 2015
    Assignee: Volterra Semiconductor LLC
    Inventors: Marco A. Zuniga, Chiteh Chiang, William Numann, Yang Lu, Jun Ruan
  • Patent number: 9159804
    Abstract: Described here are transistors and fabrication methods thereof. In one implementation, a transistor includes an n-well region implanted into a surface of a substrate, and a trench in the n-well region. The trench extends from the surface to a first depth. The trench includes a gate of conductive material in the trench, and dielectric material filling a volume of the trench not filled by the conductive material. The transistor also includes a p-type material in a first region extending from a second depth to a third depth, the second depth and the third depth being greater than the first depth. The transistor further includes a source region and a drain region.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: October 13, 2015
    Assignee: Volterra Semiconductor LLC
    Inventors: Marco A. Zuniga, Yang Lu, Badredin Fatemizadeh, Jayasimha Prasad, Amit Paul, Jun Ruan
  • Patent number: 8969158
    Abstract: A method of fabricating a vertical gate region in LDMOS transistor includes depositing a first masking layer on an n-well region implanted on a substrate, patterning the first masking layer to define an area, depositing a second masking layer over the area, etching through the second masking layer in a first portion of the area to expose the n-well region, and etching the exposed n-well region to form a first trench. The first trench, extending from a surface of the n-well region to a first depth, is filled with an oxide. The second masking layer is etched through in a second portion of the area to expose the n-well region. A second trench is formed in the n-well, the second trench extending from the surface to a second depth, less than the first depth. An asymmetric vertical gate is formed by filling the second trench with a conductive material.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: March 3, 2015
    Assignee: Volterra Semiconductor Corporation
    Inventors: Marco A. Zuniga, Yang Lu, Badredin Fatemizadeh, Jayasimha Prasad, Amit Paul, Jun Ruan