Patents by Inventor Qiang Zhou

Qiang Zhou 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: 11519890
    Abstract: Disclosed is a detection method for N-nitrosodimethylamine (NDMA) impurities, comprising: (1) obtaining a test solution containing a sample to be tested; and (2) detecting the test solution by means of gas chromatography-mass spectrometry to determine the content of an N-nitrosodimethylamine impurity in the sample. The method provided in the present invention has a good separating effect, a wide linear range, a high sensitivity and a good method durability, and can detect the content of N-nitrosodimethylamine (NDMA) in the sample rapidly and effectively.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: December 6, 2022
    Assignee: ZHEJIANG HUAHAI PHARMACEUTICAL CO., LTD
    Inventors: Tan Xiao, Tianpei Huang, Jinsheng Lin, Qiang Zhou, Tong Wu, Danfeng Ye, Hong Cai, Wenquan Zhu, Wenbin Chen, Min Li
  • Publication number: 20220360410
    Abstract: In embodiments of the present disclosure, there is provided an approach for channel sounding. According to embodiments of the present disclosure, if the CSI change rate exceeds a first threshold, the AP may disable the beamforming. If the CSI change rate does not exceed the first threshold but exceeds a second threshold below the first threshold, the AP may perform the channel sounding at a first time interval. Otherwise, if the CSI change rate does not exceed the second threshold, the AP may perform the channel sounding at a second time interval. Embodiments of the present disclosure provide an effective way for channel sounding.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 10, 2022
    Inventors: Jianpo HAN, Zhenlei WANG, Qiang ZHOU
  • Patent number: 11493326
    Abstract: An object surface data detection method and system, an electronic apparatus, and a storage medium. The object surface data detection method, applied to a three-dimensional scanning system comprising detection auxiliary devices and a scanning device, includes: obtaining a unified coordinate system established for the detection auxiliary devices, wherein a number of the detection auxiliary devices is at least two; respectively obtaining first scan data of the scanning device scanning a surface of an object and tracking results of the detection auxiliary devices tracking the scanning device; and comprehensively calculating the tracking results, the first scan data, and the unified coordinate system to obtain an object surface detection result.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: November 8, 2022
    Assignee: SCANTECH (HANGZHOU) CO., LTD.
    Inventors: Jiangfeng Wang, Qiang Zhou, Shangjian Chen, Jun Zheng
  • Publication number: 20220353953
    Abstract: In embodiments of the present disclosure, a method is provided for managing a mesh point. A request is transmitted from a mesh point to a mesh portal, and the request indicates that Reduced Neighbor Report (RNR) information is required. A beacon with the RNR information is received from the mesh portal. A mesh link is established with a target mesh portal based on the beacon with the RNR information. Therefore, the time cost and the data communication of a scanning procedure of the mesh point may be greatly reduced. Further, communications in the scanning procedure are lowered, such that conflicts in the air may be alleviated.
    Type: Application
    Filed: April 29, 2021
    Publication date: November 3, 2022
    Inventors: Xiaoyang FU, Xuguang JIA, Qiang ZHOU
  • Patent number: 11489375
    Abstract: A single phase permanent magnet motor includes a stator and a rotor. The stator includes a stator corer and windings. The stator corer includes a yoke portion and stator teeth. Each stator tooth includes a winding portion and a pole shoe connected to an end of the winding portion. Each pole shoe includes a pole face. The pole face defines a first positioning notch at a middle thereof. Each of the pole faces further defines at least one second positioning notch. Said at least one second positioning notches in one of pole shoe are located at the same side of the first positioning notch of the corresponding one pole shoe. The first and second positioning notches are configured such that an initial position of the rotor received in the space of the stator is offset from a dead point position.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: November 1, 2022
    Assignee: JOHNSON ELECTRIC INTERNATIONAL AG
    Inventors: Yue Li, Tao Zhang, Jie Chai, Chiu You Zhou, Qiang Zhou
  • Patent number: 11483761
    Abstract: Systems and methods are provided for network scanning. For example, the systems and methods can address AP scanning in the WiFi-6 context, where AP scanning frequency and the number of 6 GHz channels can be reduced. Additionally, the timing of AP scanning (on 2.4/5/6 GHz channels) can be adjusted to wait until STA's buffered frames are sent to AP and/or while a STA is asleep due to time TWT.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: October 25, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Qiang Zhou, Mohd Shahnawaz Siraj, Andre Beaudin, Xuguang Jia
  • Patent number: 11477817
    Abstract: Systems and methods are described for prioritizing channel access to uplink (UL) multi-user (MU) data capable active stations (STAs) by dynamically adapting a MU enhanced distributed channel access (EDCA) parameter set to provide for increased access to the channel by the UL MU data capable active STAs when the total number of active STAs associated to the AP less the number of active UL MU capable STAs exceeds the number of active UL MU data capable STAs; and by dynamically adapting the MU EDCA parameter set to equal a legacy EDCA parameter set to reduce collisions between the UL MU data capable STAs when the number of active UL MU data capable STAs exceeds or equals the total number of active STAs associated to the AP less the number of active UL MU data capable STAs.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: October 18, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Nitin A. Changlani, Qiang Zhou, Myung Cheol Kim
  • Patent number: 11477732
    Abstract: In embodiments of the present disclosure, there is provided an approach for managing Target Wake Time (TWT) clients in a congested environment. According to embodiments of the present disclosure, a TWT client transmits, to an AP, a request to negotiate a schedule for a TWT session. The request comprises a first set of TWT parameters requested by the TWT client. The AP determines, based on respective sets of TWT parameters of existing TWT sessions and the first set of TWT parameters, a second set of TWT parameters for the TWT client to minimize overlap between the TWT session and the existing TWT sessions. The AP transmits a response comprising the second set of TWT parameters to the TWT client. Embodiments of the present disclosure provide an effective way for assigning air resources to multiple TWT clients in a congested environment, thereby reducing collisions among TWT sessions.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: October 18, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Xuguang Jia, Qiang Zhou, Guangzhi Ran
  • Publication number: 20220330136
    Abstract: Systems and methods are provided for multiple basic service set identifier (MBSSID) beaconing (from an access point (AP) standpoint) and MBSSID/virtual AP (VAP) scanning (from a client device perspective). To facilitate easier discovery of mesh APs/VAPs, BSSIDs associated with mesh VAPs can be advertised more frequently, e.g., being broadcast as a transmitted or non-transmitted BSSID in each MBSSID beacon. Additionally, information regarding mesh VAPs, such as mesh capability information, can be provided via intermediate discovery beacons or frames such that out-of-band scanning mechanisms can discover mesh VAPs faster. Additionally still, the existence of mesh VAPs can be advertised in a dedicated field of an MBSSID beacon.
    Type: Application
    Filed: April 9, 2021
    Publication date: October 13, 2022
    Inventors: MOHD SHAHNAWAZ SIRAJ, QIANG ZHOU, ANDRE BEAUDIN
  • Patent number: 11457407
    Abstract: In one example a computer implemented method comprises receiving, at an access point of a wireless network, a multicast/broadcast frame which identifies one or more stations associated with the access point as a recipient for the multicast/broadcast frame, and in response to a determination that at least one station of the one or more stations identified as a recipient for the multicast/broadcast frame is in an inactive state, determining a beacon slot time for a transmission of the multicast/broadcast frame from the access point, in response to a determination that at least one of the one or more stations in an inactive state will miss the beacon signal, converting the multicast/broadcast frame to a unicast frame, and holding a copy of the unicast frame to be transmitted to the at least one of the one or more stations in an inactive state that will miss the beacon signal.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: September 27, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Qiang Zhou, Jianpo Han, Guangzhi Ran
  • Patent number: 11451552
    Abstract: Operation of a wireless network access point (AP) to communicate with a first set of one or more wireless client devices using a wireless protocol in which spatial reuse of channels is supported via at least a dynamically configurable basic service set (BSS) identifier of the wireless AP. The BSS identifier is utilized to identify overlapping BSSs (OBSSs). A first set of one or more wireless client devices communicate using a wireless protocol in which spatial reuse of channels is supported via at least a dynamically configurable BSS identifier of the wireless AP. The BSS identifier is utilized to identify OBSSs. Unauthorized network activity is detected based on the BSS identifier and a received BSS identifier associated with the received transmissions. A dynamic adjustment is made to one of the BSS identifiers of the AP or the received BSS identifier in response to detected unauthorized network activity.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: September 20, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Andre Beaudin, Shubham Saloni, Eloy Jr Galdones, Sachin Ganu, Qiang Zhou, Denis Houle
  • Patent number: 11433643
    Abstract: A manufacturing process of EPC composite structure floors which includes an LVT layer and a substrate layer from top to bottom includes steps of separately and independently preparing the LVT layer and the substrate layer, and performing stacking and attaching the LVT layer and the substrate layer with glue so as to obtain finished products of the EPC floors. The substrate layer needs to be subjected to a working procedure of tempering before being stacked and attached with the LVT layer. The EPC floors manufactured by the process completely meet ISO standard requirements, and when being maintained in an environment of 80° C. for 6 hours, the WPC floors can also maintain a size change rate of 0.15% or below.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: September 6, 2022
    Assignee: HUIZHOU WEI KANG NEW BUILDING MATERIALS CO., LTD.
    Inventors: Yuanyang Li, Ping Hong Leung, Qiang Zhou
  • Patent number: 11436058
    Abstract: Embodiments of the present disclosure relate to a new approach for workload balancing in a system. A computer-implemented method comprises obtaining a configuration of a system, wherein the configuration includes a connection relationship between components in the system. The method further comprises determining a workload threshold of a given component in the components based on the configuration, wherein a workload threshold of an upstream component of the given component is associated with a workload limit of the upstream component and a workload limit of the given component. The method further comprises determining a utilization rate of the given component based at least partially on a workload amount of the given component, the workload threshold of the given component, and the workload threshold of the upstream component.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: September 6, 2022
    Assignee: International Business Machines Corporation
    Inventors: Nicolas M. Clayton, Shan Fan, Yongjie Gong, Yang Liu, Xue Qiang Zhou
  • Publication number: 20220255774
    Abstract: Systems and methods are provided for using multiple MBSSIDs associated with groups of VAPs for an AP. The groups of VAPs can be determined for an AP based on various characteristics that separate one group of VAPs from another group of VAPs. Each group of VAPs can be associated with an MBSSID based on the BSSIDs of the VAPs in the group of VAPs. The AP can broadcast the MBSSIDs of each group of VAPs instead of broadcasting an MBSSID for all VAPs associated with the AP.
    Type: Application
    Filed: February 10, 2021
    Publication date: August 11, 2022
    Inventors: XUGUANG JIA, Abhiruchi Dakshinkar, Qiang Zhou
  • Publication number: 20220252385
    Abstract: An object surface data detection method and system, an electronic apparatus, and a storage medium. The object surface data detection method, applied to a three-dimensional scanning system comprising detection auxiliary devices and a scanning device, includes: obtaining a unified coordinate system established for the detection auxiliary devices, wherein a number of the detection auxiliary devices is at least two; respectively obtaining first scan data of the scanning device scanning a surface of an object and tracking results of the detection auxiliary devices tracking the scanning device; and comprehensively calculating the tracking results, the first scan data, and the unified coordinate system to obtain an object surface detection result.
    Type: Application
    Filed: February 28, 2022
    Publication date: August 11, 2022
    Inventors: Jiangfeng Wang, Qiang Zhou, Shangjian Chen, Jun Zheng
  • Publication number: 20220248508
    Abstract: A heating appliance, such as a microwave oven, includes a housing having interior walls with interior surfaces defining a cooking chamber for heating food. The heating appliance also includes a camera positioned within the housing to capture images of food in the chamber, and a shield positioned between the camera and the food. The shield has a body with a first surface facing an area for receiving food within the chamber and a second opposite surface facing the camera. The shield includes a first transparent conductive metal coating on one or both of the first surface and the second surface, such that the shield dissipates heat and reflects microwave radiation to protect the camera.
    Type: Application
    Filed: January 31, 2022
    Publication date: August 4, 2022
    Inventors: Junxiu LIU, Zhiying WANG, Lian Qiang ZHOU
  • Patent number: 11405775
    Abstract: Some examples relate to use of a three-address scheme for forwarding frames in a wireless mesh network (WMN). In an example, a node in a WMN may receive an Ethernet packet from a station outside of the WMN. The Ethernet packet may include a first address scheme comprising a destination address (DA) field, and a source address (SA) of the Ethernet packet. The Ethernet packet may be encapsulated in a second Ethernet packet comprising second address scheme. The second Ethernet packet may be encapsulated in an IEEE 802.11 frame comprising a third address scheme.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: August 2, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Jianpo Han, Xuefu Wang, Guangzhi Ran, Qiang Zhou
  • Patent number: 11405250
    Abstract: In one example in accordance with the present disclosure, a device may include a processor to detect a distance between a first location of the device and a second location of a peer device, automatically select one value for GI from at least two available values based on the detected distance, and update the value of GI using the selected value. A method may include detecting a distance between a first location of the AP and a second location of a peer device, selecting one value for GI from at least two available values based on the detected distance, and updating the value of GI using the selected value.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: August 2, 2022
    Assignee: Hewlett Packard Enterprise Development LP
    Inventors: Qiang Zhou, Xuguang Jia, Jianpo Han, Guangzhi Ran
  • Publication number: 20220200924
    Abstract: Systems and techniques are described that are directed to intelligent scheduling of Wi-Fi services for applications, including enhanced dynamic prioritization. A device, such as an access point (AP), can receive data packets from multiple connected devices to dynamically identify an application flow for each data packet, and dynamically identify a user associated with the application flow for each data packet. The AP can generate prioritized candidate lists for selected data packets in queues corresponding to an access category (AC). In response to determining that the identified user associated with the application flow corresponds with a critical user, the AP can select data packets for the prioritized candidate lists based at least in part on priority policies for each of a plurality of applications and based at least in part on dynamic prioritization of applications for each of a plurality of applications; and schedule data packets from the prioritized candidate lists.
    Type: Application
    Filed: December 21, 2020
    Publication date: June 23, 2022
    Inventors: HAO LU, SACHIN GANU, NITIN A. CHANGLANI, XIAODING SHANG, QIANG ZHOU
  • Publication number: 20220201596
    Abstract: Systems and methods are provided for network scanning. For example, the systems and methods can address AP scanning in the WiFi-6 context, where AP scanning frequency and the number of 6 GHz channels can be reduced. Additionally, the timing of AP scanning (on 2.4/5/6 GHz channels) can be adjusted to wait until STA's buffered frames are sent to AP and/or while a STA is asleep due to time TWT.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 23, 2022
    Inventors: QIANG ZHOU, MOHD SHAHNAWAZ SIRAJ, ANDRE BEAUDIN, XUGUANG JIA