Patents by Inventor Kunwel Liu

Kunwel Liu 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).

  • Method for initiating navigation guidance in a distributed communications system
    Publication number: 20060184315
    Abstract: A method is provided for improved navigation guidance in a portable navigation device (104) having a first navigation operating mode (302) for requesting (318, 324) and receiving (326, 334) routelet data and navigation route data and operating in accordance with the routelet data (332) and a second operation navigation mode (304) for operating in accordance with the navigation route data (338). The method includes in the first navigation operating mode (302), the steps of transmitting a routelet request (318) comprising location data, speed data and direction data, the location, speed and direction data determined (312, 314 316) in response to a present location, a present speed and a present direction of travel, respectively, of the portable navigation device (104), receiving routelet data (326) and operating in accordance with the received routelet data (332).
    Type: Application
    Filed: February 14, 2005
    Publication date: August 17, 2006
    Inventors: Kunwel Liu, Parvathy Bhaskaran, Richard Clayton, Garurank Saxena, Juan Uribe, Bernhard Weisshaar