Title:
METHOD AND DEVICE FOR DECODING VIDEO SIGNAL
Document Type and Number:
Japanese Patent JP3531594
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To efficiently decode video signals in high qualities.
SOLUTION: A decoding device which decodes data obtained by encoding video signals generated in the unit of 60-Hz field by telecine-converting a 24-Hz film source by 2-3 pull-down is provided with a demodulation circuit 110 and an ECC decoding circuit 111 which receive encoded data and flags DSO and DFN and separate the data and flags DSO and DFN from each other, a decoder 112 which generates 24-Hz non-interlaced video signals by variable-length decoding, inversely quantizing, and inversely DCT processing the encoded data, and a rate converting circuit 113 which rate-converts the non-interlaced video signals into images in the unit of 60-Hz field by changing the prescribed frame of the video signals to three frames based on the flags DSO and DFN.
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Inventors:
Yonemitsu, Jun
Suzuki, Teruhiko
Suzuki, Teruhiko
Application Number:
JP2000000283410
Publication Date:
March 12, 2004
Filing Date:
September 20, 1993
Export Citation:
Assignee:
SONY CORP
International Classes:
H04N7/30; H03M7/30; H03M7/40; H04N7/24; H04N7/26; H04N7/32; H04N7/30; H03M7/30; H03M7/40; H04N7/24; H04N7/26; H04N7/32; (IPC1-7): H04N7/24
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