发明名称 |
Method and apparatus for compatibly locking horizontal sync signal to PAL subscriber. |
摘要 |
<p>Circuits are provided for increasing the frequency of the standard PAL line sync signals so that they have the same phase relationship with the color subcarrier every fourth line. The generation of a standard PAL sync signal is achieved by generating a signal as just described and decreasing its horizontal frequency.</p> |
申请公布号 |
EP0295087(A2) |
申请公布日期 |
1988.12.14 |
申请号 |
EP19880305245 |
申请日期 |
1988.06.08 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
DISCHERT, LEE ROBERT;TOPPER, ROBERT JOSEPH |
分类号 |
H04N9/44;H04N5/06 |
主分类号 |
H04N9/44 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|