发明名称 |
Treatment system with alternating subcarrier for wide screen television signal with enhanced resolution capabilities |
摘要 |
An NTSC compatible EDTV wide screen system encodes and decodes a television signal which comprises: (1) a main signal consisting of an NTSC signal N in standard format and in which low frequency side area information has been compressed in its upper scanning area; (2) a time expanded high frequency picture information component X for the side areas; and (3) an expanded high frequency picture information component Z for horizontal luminance. The components 2 and 3 modulate an alternating subcarrier ASC which has a different frequency to the colour subcarrier within the frequency band which is used by the colour picture information. <IMAGE>
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申请公布号 |
FI87714(B) |
申请公布日期 |
1992.10.30 |
申请号 |
FI19900001276 |
申请日期 |
1990.03.14 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
ISNARDI, MICHAEL ANTHONY |
分类号 |
H04N7/015;G06T9/00;H04N11/02;H04N11/20;H04N11/24;(IPC1-7):H04N11/00 |
主分类号 |
H04N7/015 |
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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