Apparatus for receiving packet stream

Details Apparatus for receiving packet stream Apparatus for receiving packet stream

2005-03-28

2010-11-23

Vo, Tung (Department: 2621)

Pulse or digital communications

Bandwidth reduction or expansion

Television or motion video signal

C714S776000, C714S779000

Reexamination Certificate

active

07839925

ABSTRACT:
In the packet stream receiver, transport streams are sequentially input, discontinuity of continuity counters described in packet headers of transport stream packets in the stream is detected and a loss of a transport stream packet is determined. A terminator is added to part of NAL units extracted from a packet immediately before the transport stream packet is lost, and data on NAL units up to a NAL unit whose start code is detected is discarded after the start code of the NAL unit contained in the transport stream packet is detected and a terminator is added thereto. Thus, a packet stream receiver can obtain appropriate data even when part of packets is lost during transmission.

REFERENCES:
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patent: 2001/0036355 (2001-11-01), Kelly et al.
patent: 2003/0009722 (2003-01-01), Sugiyama et al.
patent: 2006/0080094 (2006-04-01), Katayama et al.
patent: WO 2004/077406 (2004-09-01), None
Article entitled Overview of the H.264/AVC Video Coding Standard, pp. 560-576, Thomas Wiegand, published in the IEEE Transactions on Circuits and Systems for Video Technology, vol. 13, No. 7, Jul. 2003.
Wenger, et al, “RTP Payload Format for H.264 Video; rfc3984.txt”, IETF Standard, Internet Engineering Task Force, IETF, CH, Feb. 1, 2005, pp. 3-14 and 27-33, XP015009755.
Hannuksela, M., et al “Description of 1-8 NAL”, Video Standards and Drafts, XX, XX, No. JVT-C164, May 10, 2002, pp. 2-4, XP030005275.
European Search Report dated Aug. 21, 2008, issued in a counterpart European Application.

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