Patents by Inventor Hongwei Zhu

Hongwei Zhu 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).

  • Publication number: 20220148153
    Abstract: This invention provides a system and method that efficiently detects objects imaged using a 3D camera arrangement by referencing a cylindrical or spherical surface represented by a point cloud, and measures variant features of an extracted object including volume, height, and center of mass, bounding box, and other relevant metrics. The system and method, advantageously, operates directly on unorganized and un-ordered points, requiring neither a mesh/surface reconstruction nor voxel grid representation of object surfaces in a point cloud. Based upon a cylinder/sphere reference model, an acquired 3D point cloud is flattened. Object (blob) detection is carried out in the flattened 3D space, and objects are converted back to the 3D space to compute the features, which can include regions that differ from the regular shape of the cylinder/sphere. Downstream utilization devices and/or processes, such as part reject mechanism and/or robot manipulators can act on the identified feature data.
    Type: Application
    Filed: October 15, 2021
    Publication date: May 12, 2022
    Inventors: Hongwei Zhu, Daniel Moreno
  • Publication number: 20220150172
    Abstract: In some embodiments, a method adds a specific route for an IP address that is associated with a first workload into a routing table for a first network device in a first site in response to the first workload being migrated from a second site to the first site. The first network device receives a packet from a second workload for the first workload and determines that a destination of the packet matches the specific route in the routing table. The method routes the packet from the second workload to the first workload using the specific route in the routing table without sending the packet to the second site.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 12, 2022
    Inventors: Hongwei Zhu, Dileep Devireddy, Ganesan Chandrashekhar, Feng Gu, Sreenivas Duvvuri, Chidambareswaran Raman, Nithin Bangalore Raju
  • Patent number: 11303557
    Abstract: Some embodiments provide a method for an edge computing device in a first datacenter that implements a logical network gateway for processing data traffic for a particular LFE between the first datacenter and multiple other datacenters. For each particular other datacenter, the method stores a record that maps logical network addresses for DCNs connected to the particular LFE and operating in the particular datacenter to a group of TEP addresses corresponding to logical network gateways that handle data traffic for the particular LFE between the particular datacenter and the other datacenters, including the first datacenter. Upon receiving a data message for the particular LFE from a host computer in the first datacenter, the method uses a destination address of the data message to identify one of the groups of TEP addresses. The method encapsulates the data message with one of the TEP addresses from the identified group of TEP addresses.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: April 12, 2022
    Assignee: VMWARE, INC.
    Inventors: Ganesan Chandrashekhar, Hongwei Zhu, Jia Yu, Abhishek Goliya
  • Publication number: 20220094666
    Abstract: Some embodiments provide a method for deploying edge forwarding elements in a public or private software defined datacenter (SDDC). For an entity, the method deploys a default first edge forwarding element to process data message flows between machines of the entity in a first network of the SDDC and machines external to the first network of the SDDC. The method subsequently receives a request to allocate more bandwidth to a first set of the data message flows entering or exiting the first network of the SDDC. In response, the method deploys a second edge forwarding element to process the first set of data message flows of the entity in order to allocate more bandwidth to the first set of the data message flows, while continuing to process a second set of data message flows of the entity through the default first edge node.
    Type: Application
    Filed: November 6, 2020
    Publication date: March 24, 2022
    Inventors: Dileep Devireddy, Ganesh Sadasivan, Chidambareswaran Raman, Hongwei Zhu, Sreenivas Duvvuri
  • Patent number: 11258713
    Abstract: In some embodiments, a first network device in a first site sets a first IP address for an interface of the first network device to a value of a second IP address of a second network device in a second site. Policies are added in a policy table to cover IP addresses used in the second site and a specific route for a third IP address associated with a first workload migrated from the second site to the first site is added into a routing table. The first workload is on a stretched network that is coupled via a layer 2 channel. The policy table configures the first network device to send a second packet from the first workload to a third workload in the second site via the layer 2 channel when an IP address for the third workload does not match an eligible route in the routing table.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: February 22, 2022
    Assignee: VMWARE, INC.
    Inventors: Hongwei Zhu, Dileep Devireddy, Ganesan Chandrashekhar, Feng Gu, Sreenivas Duvvuri, Chidambareswaran Raman, Nithin Bangalore Raju
  • Patent number: 11233824
    Abstract: In some embodiments, a method receives, by a first network device, a packet from a first workload that is located in first site. The first site includes stretched networks across a second site and a third site. The packet includes a destination IP address for a device in the second site. The method determines that the destination IP address does not match an eligible route in a routing table. The first workload was migrated from the second site to the first site and is located on a stretched network between the first site and the second site. A site identifier associated with the first workload is determined where the site identifier identifies the second site. The method selects a site policy based on the site identifier and uses the site policy to send the packet through a layer 2 channel to the second network device in the second site.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: January 25, 2022
    Assignee: VMware, Inc.
    Inventors: Hongwei Zhu, Dileep Devireddy, Ganesan Chandrashekhar, Feng Gu, Sreenivas Duvvuri, Chidambareswaran Raman
  • Publication number: 20210389934
    Abstract: Various implementations described herein are directed to a system and methods for memory compiling. For instance, a method may include selecting source corners from a memory compiler configuration and generating a standardized set of memory instances for the selected source corners. Also, the method may include deriving a reduced set of memory instances based on the standardized set of memory instances and building a memory compiler database for a compiler space based on the standardized set of memory instances and the reduced set of memory instances.
    Type: Application
    Filed: June 11, 2020
    Publication date: December 16, 2021
    Inventors: Mouli Rajaram Chollangi, Sriram Thyagarajan, Hongwei Zhu, Yew Keong Chong, Pratik Ghanshambhai Satasia
  • Publication number: 20210350595
    Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to generate point cloud histograms. A one-dimensional histogram can be generated by determining a distance to a reference for each 3D point of a 3D point cloud. A one-dimensional histogram is generated by adding, for each histogram entry, distances that are within the entry's range of distances. A two-dimensional histogram can be determined by generating a set of orientations by determining, for each 3D point, an orientation with at least a first value for a first component and a second value for a second component. A two-dimensional histogram can be generated based on the set of orientations. Each bin can be associated with ranges of values for the first and second components. Orientations can be added for each bin that have first and second values within the first and second ranges of values, respectively, of the bin.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 11, 2021
    Applicant: Cognex Corporation
    Inventors: Hongwei Zhu, David J. Michael, Nitin M. Vaidya
  • Publication number: 20210350165
    Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to generate point cloud histograms. A one-dimensional histogram can be generated by determining a distance to a reference for each 3D point of a 3D point cloud. A one-dimensional histogram is generated by adding, for each histogram entry, distances that are within the entry's range of distances. A two-dimensional histogram can be determined by generating a set of orientations by determining, for each 3D point, an orientation with at least a first value for a first component and a second value for a second component. A two-dimensional histogram can be generated based on the set of orientations. Each bin can be associated with ranges of values for the first and second components. Orientations can be added for each bin that have first and second values within the first and second ranges of values, respectively, of the bin.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 11, 2021
    Applicant: Cognex Corporation
    Inventors: Hongwei Zhu, David J. Michael, Nitin M. Vaidya
  • Publication number: 20210350615
    Abstract: The techniques described herein relate to methods, apparatus, and computer readable media configured to determining a two-dimensional (2D) profile of a portion of a three-dimensional (3D) point cloud. A 3D region of interest is determined that includes a width along a first axis, a height along a second axis, and a depth along a third axis. The 3D points within the 3D region of interest are represented as a set of 2D points based on coordinate values of the first and second axes. The 2D points are grouped into a plurality of 2D bins arranged along the first axis. For each 2D bin, a representative 2D position is determined based on the associated set of 2D points. Each of the representative 2D positions are connected to neighboring representative 2D positions to generate the 2D profile.
    Type: Application
    Filed: May 10, 2021
    Publication date: November 11, 2021
    Applicant: Cognex Corporation
    Inventors: Hongwei Zhu, Nathaniel Bogan, David J. Michael
  • Patent number: 11171878
    Abstract: Some embodiments provide a method for deploying edge forwarding elements in a public or private software defined datacenter (SDDC). For an entity, the method deploys a default first edge forwarding element to process data message flows between machines of the entity in a first network of the SDDC and machines external to the first network of the SDDC. The method subsequently receives a request to allocate more bandwidth to a first set of the data message flows entering or exiting the first network of the SDDC. In response, the method deploys a second edge forwarding element to process the first set of data message flows of the entity in order to allocate more bandwidth to the first set of the data message flows, while continuing to process a second set of data message flows of the entity through the default first edge node.
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: November 9, 2021
    Assignee: VMWARE, INC.
    Inventors: Dileep Devireddy, Ganesh Sadasivan, Chidambareswaran Raman, Hongwei Zhu, Sreenivas Duvvuri
  • Publication number: 20210314358
    Abstract: In some embodiments, a method receives, by a first network device, a packet from a first workload that is located in first site. The first site includes stretched networks across a second site and a third site. The packet includes a destination IP address for a device in the second site. The method determines that the destination IP address does not match an eligible route in a routing table. The first workload was migrated from the second site to the first site and is located on a stretched network between the first site and the second site. A site identifier associated with the first workload is determined where the site identifier identifies the second site. The method selects a site policy based on the site identifier and uses the site policy to send the packet through a layer 2 channel to the second network device in the second site.
    Type: Application
    Filed: May 28, 2020
    Publication date: October 7, 2021
    Inventors: Hongwei Zhu, Dileep Devireddy, Ganesan Chandrashekhar, Feng Gu, Sreenivas Duvvuri, Chidambareswaran Raman
  • Publication number: 20210314193
    Abstract: Some embodiments provide a method for an edge computing device in a first datacenter that implements a logical network gateway for processing data traffic for a particular LFE between the first datacenter and multiple other datacenters. For each particular other datacenter, the method stores a record that maps logical network addresses for DCNs connected to the particular LFE and operating in the particular datacenter to a group of TEP addresses corresponding to logical network gateways that handle data traffic for the particular LFE between the particular datacenter and the other datacenters, including the first datacenter. Upon receiving a data message for the particular LFE from a host computer in the first datacenter, the method uses a destination address of the data message to identify one of the groups of TEP addresses. The method encapsulates the data message with one of the TEP addresses from the identified group of TEP addresses.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 7, 2021
    Inventors: Ganesan Chandrashekhar, Hongwei Zhu, Jia Yu, Abhishek Goliya
  • Publication number: 20210314265
    Abstract: In some embodiments, a first network device in a first site sets a first IP address for an interface of the first network device to a value of a second IP address of a second network device in a second site. Policies are added in a policy table to cover IP addresses used in the second site and a specific route for a third IP address associated with a first workload migrated from the second site to the first site is added into a routing table. The first workload is on a stretched network that is coupled via a layer 2 channel. The policy table configures the first network device to send a second packet from the first workload to a third workload in the second site via the layer 2 channel when an IP address for the third workload does not match an eligible route in the routing table.
    Type: Application
    Filed: May 28, 2020
    Publication date: October 7, 2021
    Inventors: Hongwei Zhu, Dileep Devireddy, Ganesan Chandrashekhar, Feng Gu, Sreenivas Duvvuri, Chidambareswaran Raman, Nithin Bangalore RAJU
  • Publication number: 20210314289
    Abstract: Some embodiments provide a method for an MFE, in a first datacenter, to implement an LN spanning the first datacenter and a set of additional datacenters. The method stores records that each map one or more LN addresses for DCNs belonging to the LN and operating in the first datacenter to a different TEP address. The method stores an additional record that maps addresses for DCNs connected to a particular LFE of the LN and operating in the additional datacenters to a group of TEP addresses corresponding to LN gateways that handle data traffic for the particular LFE between the first datacenter and the additional datacenters. Upon receiving a data message with a destination address corresponding to a DCN connected to the particular LFE and operating in one of the additional datacenters, the method uses the additional record to identify a TEP address for encapsulating the data message.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 7, 2021
    Inventors: Ganesan Chandrashekhar, Hongwei Zhu, Jia Yu, Abhishek Goliya
  • Publication number: 20210314288
    Abstract: Some embodiments provide a method for proxying ARP requests. At an MFE that executes on a host computer operating at a first site to implement a distributed router along with at least one additional MFE at the first site, the method receives, from a router at a remote second site, an ARP request for an IP address associated with a logical switch that spans the first site and the remote second site, and to which both the distributed router and the router at the remote second site connect. The method determines whether a table that includes IP addresses for a set of DCNs that use the distributed router as a default gateway includes the IP address. When the IP address is in the table, the method proxies the request at the host computer. When the particular IP address is not in the table, the MFE does not proxy the request.
    Type: Application
    Filed: June 19, 2020
    Publication date: October 7, 2021
    Inventors: Hongwei Zhu, Dileep Devireddy, Ganesan Chandrashekhar, Feng Gu, Sreenivas Duvvuri, Chidambareswaran Raman
  • Patent number: 11067083
    Abstract: A compressor includes a low-pressure stage cylinder, a first high-pressure stage cylinder and a second high-pressure stage cylinder which are stacked, a partition is arranged between each two adjacent cylinders, the first and second high-pressure stage cylinders are both situated at a same side of the low-pressure stage cylinder or respectively situated at two sides of the low-pressure stage cylinder, the lower flange is situated below the low-pressure stage cylinder, the first high-pressure stage cylinder and the second high-pressure stage cylinder. A first sliding sheet is provided in the first high-pressure stage cylinder, a second sliding sheet is provided in the second high-pressure stage cylinder, and a third sliding sheet is provided in the low-pressure stage cylinder. The first and the second high-pressure stage cylinders are arranged in parallel, and the first and second high-pressure stage cylinders arranged in parallel are connected to the low-pressure stage cylinder in series.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: July 20, 2021
    Assignee: GREE ELECTRIC APPLIANCES, INC. OF ZHUHAI
    Inventors: Hui Huang, Yusheng Hu, Huijun Wei, Jian Wu, Ouxiang Yang, Shebing Liang, Liping Ren, Huifang Luo, Hongwei Zhu, Jia Xu
  • Patent number: 11018975
    Abstract: Described herein are systems, methods, and software to enhance flow operations on a host computing system. In one implementation, a virtual switch on a host identifies a packet from a virtual node. In response to identifying the packet, the virtual switch determines whether the packet corresponds to a cached result action based on traits of the packet. If the packet corresponds to a cached result action, then the virtual switch may process the packet in accordance with the cached result action. In contrast, if the packet does not correspond to a cached result action, then the virtual switch may process the packet in accordance with first flow operations to determine a result action, and cache the result action for use with future packets.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 25, 2021
    Assignee: Nicira, Inc.
    Inventors: Aditya Krishna Sonthy, Alexander N. Tessmer, Ganesan Chandrashekhar, Samuel Jacob, Boon Seong Ang, Hongwei Zhu, Rajeev Nair
  • Publication number: 20200394812
    Abstract: A system and method for estimating dimensions of an approximately cuboidal object from a 3D image of the object acquired by an image sensor of the vision system processor is provided. An identification module, associated with the vision system processor, automatically identifies a 3D region in the 3D image that contains the cuboidal object. A selection module, associated with the vision system processor, automatically selects 3D image data from the 3D image that corresponds to approximate faces or boundaries of the cuboidal object. An analysis module statistically analyzes, and generates statistics for, the selected 3D image data that correspond to approximate cuboidal object faces or boundaries. A refinement module chooses statistics that correspond to improved cuboidal dimensions from among cuboidal object length, width and height. The improved cuboidal dimensions are provided as dimensions for the object. A user interface displays a plurality of interface screens for setup and runtime operation.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 17, 2020
    Inventors: Ben R. Carey, Nickolas J. Mullan, Gilbert Chiang, Yukang Liu, Nitin M. Vaidya, Hongwei Zhu, Daniel Moreno, David J. Michael
  • Publication number: 20200388053
    Abstract: This invention provides an easy-to-manufacture, easy-to-analyze calibration object which combines measurable and repeatable, but not necessarily accurate, 3D features—such as a two-sided calibration object/target in (e.g.) the form of a frustum, with a pair of accurate and measurable features, more particularly parallel faces separated by a precise specified thickness, so as to provide for simple field calibration of opposite-facing DS sensors. Illustratively, a composite calibration object can be constructed, which includes the two-sided frustum that has been sandblasted and anodized (to provide measurable, repeatable features), with a flange whose above/below parallel surfaces have been ground to a precise specified thickness. The 3D corner positions of the two-sided frustum are used to calibrate the two sensors in X and Y, but cannot establish absolute Z without accurate information about the thickness of the two-sided frustum; the flange provides the absolute Z information.
    Type: Application
    Filed: May 18, 2020
    Publication date: December 10, 2020
    Inventors: Aaron S. Wallack, Gang Liu, Robert A. Wolff, David J. Michael, Ruibing Wang, Hongwei Zhu