Patents by Inventor Chan-Yong Chew

Chan-Yong Chew 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).

  • Route conflict analysis system for control of railroads
    Patent number: 4122523
    Abstract: A centralized traffic control system for complex railroad areas analyzes the intended path of travel of various trains to determine the existence of any conflicts. When one or more conflicts are detected, the system analyzes various options to resolve the conflict with a minimum disruption to the system based on predetermined constraints. The analysis proceeds on the basis of a heuristic search for conflict resolution. A successful resolution of the conflict is then implemented without requiring operator intervention.
    Type: Grant
    Filed: December 17, 1976
    Date of Patent: October 24, 1978
    Assignee: General Signal Corporation
    Inventors: Charles W. Morse, John P. Walker, Chan-Yong Chew