Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-06-21
2005-06-21
Diep, Nhon (Department: 2613)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
Reexamination Certificate
active
06909753
ABSTRACT:
The invention relates to a method and system for modulating an MPEG-4 FGS compressed video stream for variable-bandwidth transmission. A source of a video stream is provided, and a display having means for generating a control input signal for controlling one or more of video compression, error correction code generation, or symbol constellation mapping. The source video stream is compressed using MPEG-4 FGS compression to generate a compressed output video stream. The video compression is optionally performed based upon the control input signal from the display. Error correction code for the compressed video stream may be added, and its generation and addition may be optionally controlled based upon the control input signal from the display. The resulting video symbols may then be mapped to constellations, with this mapping also optionally controlled based upon the control input signal. The resulting compressed output video stream is then transmitted to the display.
REFERENCES:
patent: 5349383 (1994-09-01), Parke et al.
patent: 5418571 (1995-05-01), Ghanbari
patent: 6275531 (2001-08-01), Li
patent: 6639943 (2003-10-01), Radha et al.
patent: WO0139503 (2001-05-01), None
Pei et al: “Multi-layered Video Transmission Over Wireless Channels Using An Adaptive Modulation And Coding Scheme” Proceedings 2001 International Conference On Image Processing, ICIP 2001. vol. 2 of 3. Conf. 8, Oct. 7, 2001, pp. 1009-1012.
Meehan Joseph
van der Schaar Mihaela
Diep Nhon
Koninklijke Philips Electronics , N.V.
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