Coded data generation or conversion – Digital code to digital code converters – To or from differential codes
Reexamination Certificate
2006-12-05
2006-12-05
Mai, Lam T. (Department: 2819)
Coded data generation or conversion
Digital code to digital code converters
To or from differential codes
C341S050000
Reexamination Certificate
active
07145484
ABSTRACT:
A sample sequence ΔS similar to a first or last sample sequence of the current frame is extracted from its samples SFCand concatenated, as an alternative sample sequence AS, to each of the front and back of the current frame, and the current frame with the alternative sample sequence concatenated thereto is subjected to filtering or prediction coding to obtain processing result SOUof the current frame. In the case of prediction coding, auxiliary information, which indicates which part of the current frame was used as the alternative sample sequence, is also output. By this, filtering, autoregressive prediction coding and decoding, which require processing extending over preceding and succeeding frames as in an interpolation filter, can be concluded in the current frame with substantially no degradation of the continuity and coding efficient of the reconstructed signal.
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Harada Noboru
Ikeda Kazunaga
Jin Akio
Moriya Takehiro
Mai Lam T.
Nippon Telegraph and Telephone Corporation
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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