Patents by Inventor Xianfa Deng

Xianfa Deng 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: 11137258
    Abstract: In accordance with the present approach, a routing algorithm may be implemented to enable an agent to receive an acceptable route between a number of assigned tasks on demand. Particularly, the algorithm may determine the acceptable route by determining a travel cost for each route between an end location and one of the assigned tasks. Then, the algorithm may add in another assigned task and determine a travel cost for each route from the end location, to a first assigned task, and then to a second assigned task. Continuing in this manner, the algorithm constructs routes from the end location and through each possible subset of the assigned tasks, while tracking a permutation of each subset having the lowest travel cost. The algorithm may therefore trace back through the lowest-cost permutations to construct a complete route that has the lowest cost.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: October 5, 2021
    Assignee: ServiceNow, Inc.
    Inventors: Xianfa Deng, Audrey Yachun Chen, Devinder Narang, Wenhua Li, Venkitesh Subramanian
  • Publication number: 20200217672
    Abstract: In accordance with the present approach, a routing algorithm may be implemented to enable an agent to receive an acceptable route between a number of assigned tasks on demand. Particularly, the algorithm may determine the acceptable route by determining a travel cost for each route between an end location and one of the assigned tasks. Then, the algorithm may add in another assigned task and determine a travel cost for each route from the end location, to a first assigned task, and then to a second assigned task. Continuing in this manner, the algorithm constructs routes from the end location and through each possible subset of the assigned tasks, while tracking a permutation of each subset having the lowest travel cost. The algorithm may therefore trace back through the lowest-cost permutations to construct a complete route that has the lowest cost.
    Type: Application
    Filed: January 7, 2019
    Publication date: July 9, 2020
    Inventors: Xianfa Deng, Audrey Yachun Chen, Devinder Narang, Wenhua Li, Venkitesh Subramanian