Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1994-02-23
1996-04-23
Britton, Howard W.
Facsimile and static presentation processing
Facsimile
Recording apparatus
348403, 348420, H04N 578, H04N 5945, H04N 730
Patent
active
055109047
ABSTRACT:
Video data is compressed according to a bit rate to be subdivided into data blocks each having a predetermined number of bits. The blocks are sent to a shuffling circuit to undergo a shuffling predetermined for the circuit. To concentrate errors onto a portion of the shuffled video data, the data is delivered to an inverse shuffled circuit to be subjected to an inverse shuffling so as to restore the data undergone a shuffling predetermined for a recording or transmitting apparatus, thereby transmitting the resultant compressed data to a D-2 VTR. This possibly reduces the interpolation probability on the screen and disperses the data. Even at occurrence of a burst error exceeding a correction capacity, propagation of the error can be minimized.
REFERENCES:
patent: 5175631 (1992-12-01), Juri
patent: 5301018 (1994-04-01), Smidth
Sandbank, C., Digital Television, "Recording of Digital Video Signals", John Wiley & Sons, 1990, Chichester, G.B., pp. 442-449.
Yamamitsu, C., IEEE Transactions on Consumer Electronics, "A Study on Trick Plays for Digital VCR", vol. 37, No. 3, Aug., 1991, New York, NY, pp. 261-266.
Britton Howard W.
NEC Corporation
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