Protection of streaming A/V data

Details Protection of streaming A/V data Protection of streaming A/V data

2006-05-02

2006-05-02

Chase, Shelly (Department: 2133)

Error detection/correction and fault detection/recovery

Pulse or data error handling

Digital data error correction

C714S746000

Reexamination Certificate

active

07039850

ABSTRACT:
A frame structure is provided for streaming A/V data providing improved protecting and opportunities for concealing errors. The frame structure includes a header block and a plurality of sub-blocks. Each of the sub-blocks includes digitally encoded audio/video data corresponding to predetermined consecutive periods of the A/V signal. The sub-blocks are generally of variable length. For the header block and each of the sub-blocks a respective associated error protecting code is present in the frame for protecting the associated block during transmission. The header block also includes a location information field that provides information on the location of at least one of the sub-blocks in the frame.

REFERENCES:
patent: 5990967 (1999-11-01), Kawakami et al.
patent: 6587477 (2003-07-01), Takeda et al.
patent: 0827312 (1998-03-01), None
patent: 1014730 (2000-06-01), None
patent: 1137005 (2001-09-01), None
Seytter: “An efficient multiplex architecture for mobile MPEG-4 systems—Image Communication” Signal Processing. Image Communication, Elsevier Science Publishers, vol. 14, No. 6-8, May 1999, pp. 599-606.
MPEG2-AAC, ISO/IEC 13818-7, 1997, pp. 1-63.
MPEG4-AAC, ISO/IEC 14496-3, 1999, pp. 1-31.

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