发明名称 |
Apparatus for recording a digital picture |
摘要 |
<p>Code words, which correspond to orthogonal-transform-resultant coefficients having order numbers equal to or higher than an order number "n+1", are deleted from code words composing each 1-intra-frame segment of an input digital picture signal to generate special picture data with a frame period NS on the basis of the input digital picture signal. Estimation is made as to a code amount CF(nmin) of special picture data generated by deleting code words, which correspond to orthogonal-transform-resultant coefficients having order numbers equal to or higher than an order number "nmin+1", from code words composing a 1-intra-frame segment of the input digital picture signal, where "nmin" denotes a lower limit of an order number "n". The frame period NS of the special picture data and a target code amount C are decided so that the estimated code amount CF(nmin) will be equal to or smaller than the target code amount C. The input digital picture signal is recorded on a recording medium. The special picture data is recorded on predetermined positions in the recording medium. <IMAGE></p> |
申请公布号 |
EP0899962(A2) |
申请公布日期 |
1999.03.03 |
申请号 |
EP19970310376 |
申请日期 |
1997.12.19 |
申请人 |
VICTOR COMPANY OF JAPAN, LTD. |
发明人 |
YOSHIDA, YUMI;TERANISHI, YASUHIKO;HIGURASHI, SEIJI |
分类号 |
H04N7/30;H04N7/52;(IPC1-7):H04N7/50 |
主分类号 |
H04N7/30 |
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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