发明名称 |
VIDEO DISPLAY SYSTEM |
摘要 |
A video display device has a scanning standard which is instantaneously adaptively dependent on the presence of movement in the picture. With a 625/50/2:1 input signal, in the absence of motion the standard used is 625/100/2:1. In the presence of motion the standard can remain 625/50/2:1. The video input is applied to aline store (108) and through an attenuator (102) to field stores (104). An appropriate one of the store outputs is selected by a switch (126) in dependence on a movement signal (116). In a preferred alternative, in the presence of motion the standard is altered to 625/50/1:1. |
申请公布号 |
WO8804505(A1) |
申请公布日期 |
1988.06.16 |
申请号 |
WO1987GB00868 |
申请日期 |
1987.12.02 |
申请人 |
BRITISH BROADCASTING CORPORATION |
发明人 |
DREWERY, JOHN, OLIVER;JONES, ARTHUR, HOWARD |
分类号 |
H04N5/14;H04N5/44;H04N7/01;H04N7/015;(IPC1-7):H04N5/44 |
主分类号 |
H04N5/14 |
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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