发明名称 |
Video signal detection circuit and video signal processing device |
摘要 |
A video signal detection circuit of the present invention is provided with a trapping circuit which traps frequencies corresponding to color sub-carrier wave signal components and which is disposed between a phase comparing circuit and a voltage controlled oscillation circuit in a PLL circuit performing synchronous detection.
|
申请公布号 |
US5864373(A) |
申请公布日期 |
1999.01.26 |
申请号 |
US19960658661 |
申请日期 |
1996.06.05 |
申请人 |
ROHM CO., LTD. |
发明人 |
HATANO, HIROYUKI |
分类号 |
H04N5/455;H04N9/64;(IPC1-7):H04N5/62 |
主分类号 |
H04N5/455 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|