Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2001-12-21
2009-08-04
Czekaj, David (Department: 2621)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C370S466000
Reexamination Certificate
active
07570692
ABSTRACT:
An apparatus and method for transmitting MPEG-4 data synchronized to MPEG-2 data is disclosed. The apparatus for transmitting MPEG-4 data synchronized to MPEG-2 data includes: an object separation unit for extracting MPEG-4 object data from MP4 data, separating meta information from the object data, and generating program information and synchronization information; a conversion unit for converting the MPEG-4 object data to MPEG-4 packets of which data structure is the same as that of MPEG-2 data, based on the program information and synchronization information; and a multiplexing unit for multiplexing the MPEG-4 packets with the MPEG-2 data.
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International Standards ISO/IEC 13818-1, Information Technology-Generic coding of moving pictures and associated audio information: Systems, Dec. 1, 2000, pp. 8, 41-42, 75-76, 85-96 and 150-152.
“MPEG-4 Systems: Overview”, O. Avaro, et al., Image Communication, Elsevier Science Publishers, Amsterdam, vol. 15, Jan. 2000, pp. 281-298.
Ahn Chieteuk
Ahn Sang-Woo
Choi Jin Soo
Kim Jin Woong
Kim Mun-churl
Blakely , Sokoloff, Taylor & Zafman LLP
Czekaj David
Electronics and Telecommunications Research Institute
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