Patents by Inventor Roland Chan

Roland Chan 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: 12216471
    Abstract: Aspects of the disclosure relate to providing information about a vehicle dispatched to pick up the user. In one example, a request for the vehicle to stop at a particular location is sent. In response, information identifying a current location of the vehicle is received. A map is generated. The map includes a first marker identifying the received location of the vehicle, a second marker identifying the particular location, and a shape defining an area around the second marker at which the vehicle may stop. The shape has an edge at least a minimum distance greater than zero from the second area. A route is displayed on the map between the first marker and the shape such that the route ends at the shape and does not reach the second marker. Progress of the vehicle towards the area along the route is displayed based on received updated location information for the vehicle.
    Type: Grant
    Filed: August 7, 2023
    Date of Patent: February 4, 2025
    Assignee: WAYMO LLC
    Inventors: Jennifer Arden, Brian Douglas Cullinane, Min Li Chan, Renaud-Roland Hubert
  • Patent number: 7817540
    Abstract: The present disclosure relates an improved cable data switching unit that provides a fail-over system whereby one line card can protect a plurality of US (upstream) or DS (downstream) channel line cards, providing N+1 protection, with one linecard being able to protect N number of working linecards. When a failure is detected in a working linecard, the signals being routed by the failing linecards are re-routed seamlessly to a protect linecard. This disclosure provides for data to be passively routed, providing for data flow even if power is lost.
    Type: Grant
    Filed: May 8, 2002
    Date of Patent: October 19, 2010
    Assignee: Cisco Technology, Inc.
    Inventors: Feisal Daruwalla, John T. Chapman, Richard Meller, Roland Chan, Nicos Achilleoudis