发明名称 |
LINJESYNKRONISERANDE KRETS FOR EN BILDPRESENTATIONSANORDNING |
摘要 |
A line synchronizing circuit for a picture display device comprising a voltage-controlled oscillator for generating a signal whose frequency is higher than the line frequency, a frequency dividing circuit for dividing the frequency of the oscillator signals and a phase comparison stage for generating a control voltage in dependence on the phase deviation between the signals applied thereto, more specifically a received line synchronizing signal and a locally generated reference signal. The elements of the line phase control loop, are part of an integrated circuit which functions as a frequency synthesizing circuit. The reference-frequency dividing circuit incorporated in the integrated circuit is programmed to operate with a constant divisor. |
申请公布号 |
SE452836(B) |
申请公布日期 |
1987.12.14 |
申请号 |
SE19820004555 |
申请日期 |
1982.08.03 |
申请人 |
NV PHILIPS' GLOEILAMPENFABRIEKEN |
发明人 |
M V C * STROOMER;F M * BOEKHORST |
分类号 |
H04N5/06;H04N5/12;(IPC1-7):H04N5/12 |
主分类号 |
H04N5/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|