发明名称 |
A TECHNIQUE FOR PROVIDING COMPATIBILITY BETWEEN HIGH-DEFINITION AND CONVENTIONAL COLOR TELEVISION |
摘要 |
The present invention relates to a compatible high-definition television (CHDTV) color picture signal which is capable of conversion by simple and inexpensive means into either a HDTV composite color picture signal for use by a HDTV receiver or an associated conventional television system (ACTS) color picture signal for use by an ACTS receiver. The present CHDTV color picture signal comprises (a) a first line scan rate which is the same as that of the ACTS signal, (b) a first line signal of a HDTV camera signal produced at a second line scan rate which is time stretched and transmitted as is at the first line scan rate in a first portion of the CHDTV signal bandwidth, and (c) a second line signal of the HDTV camera signal which is time streched and transmitted as a line differential signal on a vestigial sideband carrier signal in a second portion of the HDTV signal bandwidth. |
申请公布号 |
DE3366495(D1) |
申请公布日期 |
1986.11.06 |
申请号 |
DE19833366495 |
申请日期 |
1983.01.17 |
申请人 |
WESTERN ELECTRIC COMPANY, INCORPORATED |
发明人 |
HASKELL, BARIN GEOFFREY |
分类号 |
H04N5/46;H04N7/01;H04N7/015;H04N7/06;H04N9/00;H04N11/20;H04N11/24;(IPC1-7):H04N11/20 |
主分类号 |
H04N5/46 |
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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