| 发明名称 |
Method of coding video signals and transmission system thereof. |
| 摘要 |
<p>A method and apparatus for coding video data to reduce the amount of data that must be transmitted, involving performing a discrete cosine transform of a frame of data, requantizing the transformed data with a variable quantizing step and recording the requantized data with a variable coding length. The size of the quantizing step is controlled according to a characteristic of the data.</p> |
| 申请公布号 |
EP0424060(A2) |
申请公布日期 |
1991.04.24 |
| 申请号 |
EP19900311248 |
申请日期 |
1990.10.15 |
| 申请人 |
SONY CORPORATION |
发明人 |
YAGASAKI, YOICHI, SONY CORPORATION;YONEMITSU, JUN, SONY CORPORATION |
| 分类号 |
H04N19/50;G06T9/00;H04N9/804;H04N19/115;H04N19/126;H04N19/134;H04N19/149;H04N19/176;H04N19/192;H04N19/196;H04N19/423;H04N19/503;H04N19/593;H04N19/91 |
主分类号 |
H04N19/50 |
| 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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