Patents by Inventor Harold Wang

Harold Wang 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).

  • Linecard system using riser printed circuit boards (PCBS)
    Patent number: 11737204
    Abstract: A network device having improved thermal cooling is provided. The network device includes a first printed circuit board (PCB) having a plurality of common connectors and one or more second PCBs, each second PCB coupled to the first PCB by a respective common connector of the plurality of common connectors. Each second PCB may include a set of ports, each port in the set of ports coupled to the respective common connector via the second PCB. The one or more second PCBs may be arranged vertically parallel on a front side of the first PCB such that each second PCB forms a 90 degree angle with the first PCB to allow air to flow in spaces defined between vertically adjacent second PCBs.
    Type: Grant
    Filed: January 19, 2022
    Date of Patent: August 22, 2023
    Assignee: ARISTA NETWORKS, INC.
    Inventors: Pranav Devalla, Harold Wang, Prasad Venugopal, Aravind Musunuri
  • LINECARD SYSTEM USING RISER PRINTED CIRCUIT BOARDS (PCBS)
    Publication number: 20220141949
    Abstract: A network device having improved thermal cooling is provided. The network device comprising a first printed circuit board (PCB) having a plurality of common connectors and one or more second PCBs, each second PCB coupled to the first PCB by a respective common connector of the plurality of common connectors. Each second PCB may include a set of ports, each port in the set of ports coupled to the respective common connector via the second PCB. The one or more second PCBs may be arranged vertically parallel on a front side of the first PCB such that each second PCB forms a 90 degree angle with the first PCB to allow air to flow in spaces defined between vertically adjacent second PCBs.
    Type: Application
    Filed: January 19, 2022
    Publication date: May 5, 2022
    Inventors: Pranav Devalla, Harold Wang, Prasad Venugopal, Aravind Musunuri
  • Linecard system using riser printed circuit boards (PCBS)
    Patent number: 11266007
    Abstract: A network device having improved thermal cooling is provided. The network device comprising a first printed circuit board (PCB) having a plurality of common connectors and one or more second PCBs, each second PCB coupled to the first PCB by a respective common connector of the plurality of common connectors. Each second PCB may include a set of ports, each port in the set of ports coupled to the respective common connector via the second PCB. The one or more second PCBs may be arranged vertically parallel on a front side of the first PCB such that each second PCB forms a 90 degree angle with the first PCB to allow air to flow in spaces defined between vertically adjacent second PCBs.
    Type: Grant
    Filed: September 18, 2019
    Date of Patent: March 1, 2022
    Assignee: Arista Networks, Inc.
    Inventors: Pranav Devalla, Harold Wang, Prasad Venugopal, Aravind Musunuri
  • Reducing cross talk among connector pins
    Patent number: 11216325
    Abstract: Embodiments of the present disclosure provide a method and apparatus for reducing cross talk among pins in a connector. The apparatus may detect a bit error rate (BER) for each of a plurality of pins in a connector and compare the BER for each pin to a threshold BER. Responsive to determining that a set of pins among the plurality of pins each have a BER that is above the threshold BER, the apparatus may decrease the BER for each pin in the set of pins by selecting a subset of pins among the plurality of pins and adjusting operational characteristics of one or more of the subset of pins. The operational characteristics include a transmit power of the pin.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: January 4, 2022
    Assignee: Arista Networks, Inc.
    Inventors: Ankush Dhar, Harold Wang, Prasad Venugopal, Arul Ramalingam
  • LINECARD SYSTEM USING RISER PRINTED CIRCUIT BOARDS (PCBS)
    Publication number: 20210084749
    Abstract: A network device having improved thermal cooling is provided. The network device comprising a first printed circuit board (PCB) having a plurality of common connectors and one or more second PCBs, each second PCB coupled to the first PCB by a respective common connector of the plurality of common connectors. Each second PCB may include a set of ports, each port in the set of ports coupled to the respective common connector via the second PCB. The one or more second PCBs may be arranged vertically parallel on a front side of the first PCB such that each second PCB forms a 90 degree angle with the first PCB to allow air to flow in spaces defined between vertically adjacent second PCBs.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 18, 2021
    Inventors: Pranav Devalla, Harold Wang, Prasad Venugopal, Aravind Musunuri
  • REDUCING CROSS TALK AMONG CONNECTOR PINS
    Publication number: 20200409439
    Abstract: Embodiments of the present disclosure provide a method and apparatus for reducing cross talk among pins in a connector. The apparatus may detect a bit error rate (BER) for each of a plurality of pins in a connector and compare the BER for each pin to a threshold BER. Responsive to determining that a set of pins among the plurality of pins each have a BER that is above the threshold BER, the apparatus may decrease the BER for each pin in the set of pins by selecting a subset of pins among the plurality of pins and adjusting operational characteristics of one or more of the subset of pins. The operational characteristics include a transmit power of the pin.
    Type: Application
    Filed: June 28, 2019
    Publication date: December 31, 2020
    Inventors: Ankush Dhar, Harold Wang, Prasad Venugopal, Arul Ramalingam