发明授权
US07366204B2 Apparatus for generating and restoring RTP packet and method thereof
失效
用于生成和恢复RTP分组的装置及其方法
- 专利标题: Apparatus for generating and restoring RTP packet and method thereof
- 专利标题(中): 用于生成和恢复RTP分组的装置及其方法
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申请号: US10401752申请日: 2003-03-31
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公开(公告)号: US07366204B2公开(公告)日: 2008-04-29
- 发明人: Sang-ug Kang , Austin Lobo
- 申请人: Sang-ug Kang , Austin Lobo
- 申请人地址: KR Suwon-si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-si
- 代理机构: Staas & Halsey LLP
- 优先权: KR10-2002-17833 20020401
- 主分类号: H04J3/06
- IPC分类号: H04J3/06
摘要:
An apparatus and method to generate and restore an RTP (Real-Time Transmission Protocol) packet. A setting unit assigns a CTS (Composition TimeStamp), a DTS (Decoding TimeStamp), and a PSN (Packet Sequence Number) that sequentially increase according to a packet generation order for each of a plurality of SL (Synchronization Layer) packets, extracting a time stamp length and a packet sequence number length from an SLCD (SL Configuration Descriptor) within each SL packet. A packet generating unit generates a header of the SL packet accommodated in an RTP packet header and the RTP packet based on the CTS, the DTS, the PSN, the time stamp length and the packet sequence number length. Since only difference values in the CTS, the DTS, and the PSN information between a previous SL packet and the present SL packet, are recorded, a number of bits can be reduced if the CTS value rolls over and a multiple SL packet can be made for the SL packet having a time stamp length greater than 32 bits. Also, a condition that a DTS delta value should always be a positive number is met.
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