Patents by Inventor Ho-ll Oh

Ho-ll Oh 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 of controlling loop-back process in Ethernet passive optical network
    Patent number: 7492719
    Abstract: A method of controlling a loop-back process between a local device and a remote device in an Ethernet passive optical network simplifies the initiation and the termination processes for a loop-back process by avoiding the use of Operation, Administration and Maintenance—Packet Data Unit (OAM PDU) information along with a loop-back control OAM PDU. The method includes the steps of: (a) adding a predetermined field into a loop-back control OAM PDU in the loop-back process, the predetermined field having distinguishing messages for initiation of a loop-back process and messages for termination of a loop-back process; and (b) the local device and the remote device performing a loop-back process using the loop-back control OAM PDU.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: February 17, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Youn Lim, Jae-Yeon Song, A-Jung Kim, Jin-Hee Kim, Su-hyung Kim, Min-Hyo Lee, Ho-ll Oh