发明名称 |
ANORDNUNG ZUR VERARBEITUNG EINES BREITBILD-FERNSEHSIGNALS ZUR GLEICHMAESSIGEN BILDAUFLOESUNG IM MITTEL- UND SEITENBEREICH |
摘要 |
An NTSC compatible widescreen EDTV system encodes and decodes a television signal (N) comprising (1) a main, standard format NTSC signal with auxiliary low frequency side panel image information compressed into an overscan region thereof; (2) auxiliary high frequency side panel image information (X); and (3) auxiliary high frequency horizontal luminance information (Z). At an encoder, components 2 and 3 are intraframe averaged (64, 76) before modulating an alternate subcarrier (80). Component 1 is intraframe averaged (38) exclusive of the compressed side panel information before being combined (40) with the modulated alternate subcarrier. |
申请公布号 |
DD292794(A5) |
申请公布日期 |
1991.08.08 |
申请号 |
DD19890326039 |
申请日期 |
1989.02.27 |
申请人 |
GENERAL ELECTRIC COMPANY,US |
发明人 |
ISNARDI,MICHAEL A.,US;SMITH,TERRENCE R.,US |
分类号 |
H04N7/015;G06T9/00;H04N7/01;H04N7/26;H04N7/46;H04N11/00;H04N11/24;(IPC1-7):H04N3/22 |
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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