Patents by Inventor Chi-Sun Ahn

Chi-Sun Ahn 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).

  • Apparatus and method for measuring length of pipe
    Patent number: 9389059
    Abstract: An apparatus for detecting a pipe length in an air conditioning system includes a detector to detect a signal traveled through a pipe; and a processor to determine a pipe length based on the detected signal.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: July 12, 2016
    Assignee: LG ELECTRONICS INC.
    Inventors: Jun-Tae Kim, Chi-Sun Ahn, Seung-Hwan Jung, Sang-Chul Youn, Duck-Gu Jeon
  • APPARATUS AND METHOD FOR MEASURING LENGTH OF PIPE
    Publication number: 20130120007
    Abstract: An apparatus for detecting a pipe length in an air conditioning system includes a detector to detect a signal traveled through a pipe; and a processor to determine a pipe length based on the detected signal.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 16, 2013
    Inventors: Jun-Tae Kim, Chi-Sun Ahn, Seung-Hwan Jung, Sang-Chul Youn, Duck-Gu Jeon
  • Apparatus and method for measuring length of pipe
    Patent number: 8326572
    Abstract: An apparatus for detecting a pipe length in an air conditioning system includes a detector to detect a signal traveled through a pipe and a first impedance coupler that couples to one end of the pipe, where the detector detects the signal traveled through the pipe at the first impedance coupler. A processor determines a pipe length based on the detected signal and a signal generator generates the signal to be sent through the pipe. A second impedance coupler couples to another end of the pipe, where the signal generator sends the signal to the pipe through the second impedance coupler.
    Type: Grant
    Filed: July 2, 2009
    Date of Patent: December 4, 2012
    Assignee: LG Electronics Inc.
    Inventors: Jun-Tae Kim, Chi-Sun Ahn, Seung-Hwan Jung, Sang-Chul Youn, Duck-Gu Jeon
  • Apparatus and method for measuring length of pipe
    Publication number: 20100063772
    Abstract: An apparatus for detecting a pipe length in an air conditioning system includes a detector to detect a signal traveled through a pipe; and a processor to determine a pipe length based on the detected signal.
    Type: Application
    Filed: July 2, 2009
    Publication date: March 11, 2010
    Inventors: Jun-Tae Kim, Chi-Sun Ahn, Seung-Hwan Jung, Sang-Chul Youn, Duck-Gu Jeon