The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 17, 2009
Filed:
Aug. 28, 2003
Se-youn Lim, Seoul, KR;
Jae-yeon Song, Songnam-shi, KR;
A-jung Kim, Seoul, KR;
Jin-hee Kim, Suwon-shi, KR;
Su-hyung Kim, Seoul, KR;
Min-hyo Lee, Suwon-shi, KR;
Ho-ll OH, Seoul, KR;
Se-Youn Lim, Seoul, KR;
Jae-Yeon Song, Songnam-shi, KR;
A-Jung Kim, Seoul, KR;
Jin-Hee Kim, Suwon-shi, KR;
Su-hyung Kim, Seoul, KR;
Min-Hyo Lee, Suwon-shi, KR;
Ho-ll Oh, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
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.