Magnetic tape recording apparatus and method, magnetic tape format, and recording medium therefor

a technology of magnetic tape and recording apparatus, which is applied in the field of magnetic tape recording apparatus and methods, and to the recording media therefor, can solve the problems of insufficient recording rate for real data and inability to efficiently record transport packets, and achieve the effect of efficient recording of transport packets

Inactive Publication Date: 2006-02-07
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The technical effect of this patented technology is that it allows for efficient recording of transport packets.

Problems solved by technology

This patent describes various technical problem addressed in the patent text: The technical problem described in the patent text relates to improving the efficiency of recording high quality video data in a way that does not require more storage space than what was previously possible due to the limitations of existing formats.

Method used

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  • Magnetic tape recording apparatus and method, magnetic tape format, and recording medium therefor
  • Magnetic tape recording apparatus and method, magnetic tape format, and recording medium therefor
  • Magnetic tape recording apparatus and method, magnetic tape format, and recording medium therefor

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Embodiment Construction

[0086]FIG. 3 illustrates the configuration of a recording system of a magnetic tape recording / reading apparatus to which the present invention is applied. A video data compressor 1 compresses input HD video signals according to an MPEG method, such as MP@HL or MP@H-14. An audio data compressor 2 compresses audio signals corresponding to the HD video signals according to, for example, an audio compression method corresponding to a DV-format compression method. System data, such as auxiliary data or subcode data, is input into a terminal 3 from a controller 13.

[0087]A switch 4 suitably selects one of the outputs from among the video data compressor 1, the audio data compressor 2, and the terminal 3 under the control of the controller 13, and supplies the selected output to an error code / ID adder 5. The error code / ID adder 5 adds an error detecting / correcting code or an ID to the input data and performs interleave processing for 16 tracks. The error code / ID adder 5 then outputs

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Abstract

139 sync blocks, each having 111 bytes, are disposed on each track of a magnetic tape. Among the 139 sync blocks, 121 sync blocks each consist of a two-byte detection pattern for detecting the sync block, three-byte identification information for identifying the sync block, 96-byte main data, and 10-byte inner error correcting code added to the identification information and the main data. In the remaining 18 sync blocks, instead of the main data, 96-byte outer error correcting code is included. The outer error correcting code is provided for each group of the 139 sync blocks. Such a group of 139 sync blocks is obtained by dividing 2224 sync blocks contained in sixteen tracks by sixteen planes, 1668 sync blocks contained in twelve tracks by twelve planes, or 1112 sync blocks contained in eight tracks by eight planes. The sync blocks are arranged on the magnetic tape so that the distance between the sync blocks belonging to the identical plane is constant among the planes.

Description

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Claims

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Application Information

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Owner SONY CORP
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