Video data compressor minimizing propagation of error
AssigneeNEC Corporation
InventorSatoshi Itoi
Life of this patent
Estimating the term…
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.
Claims17
A video data compressor for converting a set of video data into an adapted sequence of compressed data to be outputted to a video medium subjected to a data error correction process including a data shuffling process, said video data compressor comprising:
- a data compressing means compressing said set of video data into a first sequence of compressed data with a predetermined bit rate;
- and
- an inverse shuffling means shuffling said first sequence of compressed data in an inverse manner to said data shuffling process to obtain said adapted sequence of compressed data, so that an arbitrary pair of neighboring data in said first sequence of compressed data are neighbors to each other in said data error correction process.
A video data compressor for converting a set of video data into an adapted sequence of compressed data to be outputted to a video medium subjected to a data error correction process including a data shuffling process, said video data compressor comprising:
- a data compressing means compressing said set of video data into a first sequence of compressed data with a predetermined bit rate:
- subdividing means subdividing said set of video data compressed by the compressing means into data blocks each having a predetermined number of bits;
- and
- an inverse shuffling means shuffling said first sequence of compressed data in an inverse manner to said data shuffling process to obtain said adapted sequence of compressed data, so that an arbitrary pair of neighboring data in said first sequence of compressed data are neighbors to each other in said data error correction process.
Dependencies are inferred from the claim text.