Received: April 10, 2003 From: Heungmo Lee This is to affirm that Samsung Electronics Co., Ltd., in accordance with long-established practice, will offer patent licenses for submissions made by it which are adopted or recommended as a standard by your organization as follows: If part(s) of a submission by Samsung Electronics Co., Ltd. is(are) included in a standard and Samsung Electronics Co., Ltd. has patents and/or pending application(s) that are essential to implementation of such included part(s) in said standard, Samsung Electronics Co., Ltd. is prepared to grant - on the basis of reciprocity (grantback) - a license on such included part(s) on reasonable, non-discriminatory terms and conditions. Sincerely, Kyong-Joon, Chun Executive Vice President Telecommunication R&D Center Samsung Electronics Co., Ltd.