Patents by Inventor Chi-Tai Cheng

Chi-Tai Cheng 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 and system for estimating use time of electric appliances
    Patent number: 8160826
    Abstract: A method and a system for estimating use time of electric appliances are provided. In the present method, all time points corresponding to an appliance power on event or an appliance power off event are obtained according to a value-time curve of at least one electric characteristic. A characteristic value of each of the time points is calculated according to the value-time curve, so as to pair the time points corresponding to the appliance power off event with the time points corresponding to the appliance power on event appropriately. After the pairing process is accomplished, the use time of each of the electric appliances can be calculated by the paired time points and thereby the power consumption of the electric appliances can be figured out.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: April 17, 2012
    Assignee: Institute for Information Industry
    Inventors: Hung-Ren Lai, Chi-Tai Cheng
  • METHOD AND SYSTEM FOR ESTIMATING USE TIME OF ELECTRIC APPLIANCES
    Publication number: 20110119002
    Abstract: A method and a system for estimating use time of electric appliances are provided. In the present method, all time points corresponding to an appliance power on event or an appliance power off event are obtained according to a value-time curve of at least one electric characteristic. A characteristic value of each of the time points is calculated according to the value-time curve, so as to pair the time points corresponding to the appliance power off event with the time points corresponding to the appliance power on event appropriately. After the pairing process is accomplished, the use time of each of the electric appliances can be calculated by the paired time points and thereby the power consumption of the electric appliances can be figured out.
    Type: Application
    Filed: December 7, 2009
    Publication date: May 19, 2011
    Applicant: INSTITUTE FOR INFORMATION INDUSTRY
    Inventors: Hung-Ren Lai, Chi-Tai Cheng