发明名称 |
Recording and/or reproducing apparatus for recording and/or reproducing image data compressed according to different compressing methods |
摘要 |
A recording and/or reproducing apparatus for recording and/or reproducing image signals compressed according to different compressing methods. This recording and/or reproducing apparatus includes a compressing circuit for compressing first image data according to a first image data compressing method, a selecting circuit supplied with the first image data thus compressed and encoded by the compressing circuit and second image data compressed and encoded according to a second image data compressing method and selecting any one of the first and second compressed image data, and a first error correction encoding circuit for error correction encoding the selected compressed image data. The recording and/or reproducing apparatus further includes a recording and/or reproducing circuit for recording and/or reproducing the error correction encoded data on and/or from a recording medium, a first error correction decoding circuit for error correction decoding the compressed image data reproduced by the recording and/or reproducing circuit, an image data expanding circuit for expanding the compressed image data that has been error-corrected by the error correction decoding circuit, and an output circuit for outputting the first image data expanded by the image data expanding circuit. The second image data has a bit rate not greater than that of the first image data.
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申请公布号 |
US5585933(A) |
申请公布日期 |
1996.12.17 |
申请号 |
US19940357156 |
申请日期 |
1994.12.15 |
申请人 |
HITACHI, LTD. |
发明人 |
ICHIGE, KENJI;ARAI, TAKAO;OKU, MASUO;OKAMOTO, HIROO |
分类号 |
H04N5/92;H04N5/926;H04N5/94;H04N7/32;(IPC1-7):H04N5/76 |
主分类号 |
H04N5/92 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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