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Data processing device and data recording device

A data processing device and data technology, applied in data recording, digital recording/reproducing, recording signal processing, etc., can solve the problems of lack of flexibility of VCR, and achieve the effect of improving error resistance and quality

Inactive Publication Date: 2003-12-24
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

VCR lacks flexibility in handling images in multiple formats

Method used

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  • Data processing device and data recording device
  • Data processing device and data recording device
  • Data processing device and data recording device

Examples

Experimental program
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Embodiment Construction

[0036] An embodiment in which the present invention is applied to a digital VCR is described below. This embodiment is suitable in the environment of a broadcasting station, and allows recording and reproduction of video signals having many various formats different from each other. For example, using almost the same hardware, a signal with an effective number of lines up to 480 (480i signal) in an interlaced scan based on the NTSC system (National Television System Committee system) and an interlaced signal in a system based on the PAL system (progressive phase inverting system) Signals up to 576 effective lines in scanning (576i signals) can be recorded and reproduced. In addition, it is possible to record and reproduce signals having 1080 lines in interlaced scanning (1080i signal) and signals having 480, 720 and 1080 lines in progressive scanning (non-interlaced scanning) (480p, 720p and 1080p signals) .

[0037] In this embodiment, both the video signal and the audio si...

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Abstract

A shuffling table memory has a shuffling table written from an external memory through a path. The external memory stores a plurality of shuffling tables corresponding to the formats of video data to be shuffled. One shuffling table selected according to the result of format determination is stored in the shuffling table memory. The shuffling table memory receives an input ID (IDi) separated from the input data as an address and outputs a converted address (IDo). The converted address (IDo) generated by the shuffling table memory is used as a write address for writing data into a data-accumulation memory. With the read address sequentially changing, shuffled data is read from the data-accumulation memory.

Description

technical field [0001] The present invention relates to a data processing device and a data recording device, for example, for recording image data in a tape-shaped recording medium and reproducing image data from the recording medium. Background technique [0002] As is well known, a digital video cassette recorder (VCR) is a typical representative of a data recording and reproducing apparatus which records digital image signals in a magnetic tape and reproduces the data recording from a recording medium. In the recording processing section of the digital image recording unit, processing called shuffing is performed to rearrange data in an order different from the original order. The shuffling operation is performed for the following reasons. [0003] First, burst errors due to scratches on the tape are dispersed by performing shuffling to increase error resistance in error correction codes (ECC). Product codes are used as ECC in many cases. The product code is obtained ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/92G11B20/12G11B20/18G11B27/02G11B27/30H04N5/7826H04N9/804H04N9/806
CPCG11B20/18G11B27/3027H04N9/8063H04N5/78266H04N9/8042G11B2220/90G11B20/1207G11B27/02
Inventor 佐佐木雅朗五十崎正明官泽智司高木聪
Owner SONY CORP
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