| 发明名称 |
GRAPHIC CODING UNIT |
| 摘要 |
PURPOSE:To improve the S/N at coding, by performing synchronous addition for the A/D converted output digitally, through the provision of the line memory and the addition circuit at the prestage of the coding circuit. |
| 申请公布号 |
JPS5413215(A) |
申请公布日期 |
1979.01.31 |
| 申请号 |
JP19770077833 |
申请日期 |
1977.07.01 |
| 申请人 |
HITACHI LTD;NIPPON TELEGRAPH & TELEPHONE |
发明人 |
MISAKI YOSHINORI;HOSHINO HATSUO;KAWAKUBO HIDEJI |
| 分类号 |
H04N1/409;G06T9/00;H04N7/00;H04N7/12;H04N19/00 |
主分类号 |
H04N1/409 |
| 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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